Merge branch 'master' into macharena

.github/workflows/ci.yml

@@ -32,8 +32,8 @@ jobs:
           gmake -C vendor/miniaudio/src
           ./odin check examples/all -vet -strict-style -disallow-do -target:netbsd_amd64
           ./odin check examples/all -vet -strict-style -disallow-do -target:netbsd_arm64
-          ./odin check vendor/sdl3  -vet -strict-style -disallow-do -target:netbsd_amd64 -no-entry-point
+          ./odin check examples/all/sdl3 -vet -strict-style -disallow-do -target:netbsd_amd64 -no-entry-point
-          ./odin check vendor/sdl3  -vet -strict-style -disallow-do -target:netbsd_arm64 -no-entry-point
+          ./odin check examples/all/sdl3 -vet -strict-style -disallow-do -target:netbsd_arm64 -no-entry-point
           ./odin test tests/core/normal.odin -file -all-packages -vet -strict-style -disallow-do -define:ODIN_TEST_FANCY=false -define:ODIN_TEST_FAIL_ON_BAD_MEMORY=true
           ./odin test tests/core/speed.odin -file -all-packages -vet -strict-style -disallow-do -o:speed -define:ODIN_TEST_FANCY=false -define:ODIN_TEST_FAIL_ON_BAD_MEMORY=true
           ./odin test tests/vendor -all-packages -vet -strict-style -disallow-do -define:ODIN_TEST_FANCY=false -define:ODIN_TEST_FAIL_ON_BAD_MEMORY=true
@@ -64,7 +64,7 @@ jobs:
           gmake -C vendor/cgltf/src
           gmake -C vendor/miniaudio/src
           ./odin check examples/all -vet -strict-style -disallow-do -target:freebsd_amd64
-          ./odin check vendor/sdl3  -vet -strict-style -disallow-do -target:freebsd_amd64 -no-entry-point
+          ./odin check examples/all/sdl3 -vet -strict-style -disallow-do -target:freebsd_amd64 -no-entry-point
           ./odin test tests/core/normal.odin -file -all-packages -vet -strict-style -disallow-do -define:ODIN_TEST_FANCY=false -define:ODIN_TEST_FAIL_ON_BAD_MEMORY=true
           ./odin test tests/core/speed.odin -file -all-packages -vet -strict-style -disallow-do -o:speed -define:ODIN_TEST_FANCY=false -define:ODIN_TEST_FAIL_ON_BAD_MEMORY=true
           ./odin test tests/vendor -all-packages -vet -strict-style -disallow-do -define:ODIN_TEST_FANCY=false -define:ODIN_TEST_FAIL_ON_BAD_MEMORY=true
@@ -75,32 +75,35 @@ jobs:
       fail-fast: false
       matrix:
         # MacOS 13 runs on Intel, 14 runs on ARM
-        os: [ubuntu-latest, macos-13, macos-14]
+        os: [macos-13, macos-14, ubuntu-latest]
     runs-on: ${{ matrix.os }}
-    name: ${{ matrix.os == 'macos-14' && 'MacOS ARM' || (matrix.os == 'macos-13' && 'MacOS Intel' || 'Ubuntu') }} Build, Check, and Test
+    name: ${{ matrix.os == 'macos-14' && 'MacOS ARM' || (matrix.os == 'macos-13' && 'MacOS Intel') || (matrix.os == 'ubuntu-latest' && 'Ubuntu') }} Build, Check, and Test
     timeout-minutes: 15
     steps:
-      - uses: actions/checkout@v4
 
-      - name: Download LLVM (Linux)
+      - uses: actions/checkout@v4
-        if: matrix.os == 'ubuntu-latest'
-        run: |
-          wget https://apt.llvm.org/llvm.sh
-          chmod +x llvm.sh
-          sudo ./llvm.sh 20
-          echo "/usr/lib/llvm-20/bin" >> $GITHUB_PATH
 
       - name: Download LLVM (MacOS Intel)
         if: matrix.os == 'macos-13'
         run: |
           brew update
           brew install llvm@20 lua@5.4 lld
+          echo "$(brew --prefix llvm@20)/bin" >> $GITHUB_PATH
 
       - name: Download LLVM (MacOS ARM)
         if: matrix.os == 'macos-14'
         run: |
           brew update
           brew install llvm@20 wasmtime lua@5.4 lld
+          echo "$(brew --prefix llvm@20)/bin" >> $GITHUB_PATH
+
+      - name: Download LLVM (Ubuntu)
+        if: matrix.os == 'ubuntu-latest'
+        run: |
+          wget https://apt.llvm.org/llvm.sh
+          chmod +x llvm.sh
+          sudo ./llvm.sh 20
+          echo "/usr/lib/llvm-20/bin" >> $GITHUB_PATH
 
       - name: Build Odin
         run: ./build_odin.sh release
@@ -121,56 +124,61 @@ jobs:
         run: ./odin run examples/demo -debug
       - name: Odin check examples/all
         run: ./odin check examples/all -strict-style -vet -disallow-do
-      - name: Odin check vendor/sdl3
+      - name: Odin check examples/all/sdl3
-        run: ./odin check vendor/sdl3  -strict-style -vet -disallow-do -no-entry-point
+        run: ./odin check examples/all/sdl3  -strict-style -vet -disallow-do -no-entry-point
       - name: Normal Core library tests
-        run: ./odin test tests/core/normal.odin -file -all-packages -vet -strict-style -disallow-do -define:ODIN_TEST_FANCY=false -define:ODIN_TEST_FAIL_ON_BAD_MEMORY=true
+        run: ./odin test tests/core/normal.odin -file -all-packages -vet -strict-style -disallow-do -define:ODIN_TEST_FANCY=false -define:ODIN_TEST_FAIL_ON_BAD_MEMORY=true -sanitize:address
       - name: Optimized Core library tests
-        run: ./odin test tests/core/speed.odin -o:speed -file -all-packages -vet -strict-style -disallow-do -define:ODIN_TEST_FANCY=false -define:ODIN_TEST_FAIL_ON_BAD_MEMORY=true
+        run: ./odin test tests/core/speed.odin -o:speed -file -all-packages -vet -strict-style -disallow-do -define:ODIN_TEST_FANCY=false -define:ODIN_TEST_FAIL_ON_BAD_MEMORY=true -sanitize:address
       - name: Vendor library tests
-        run: ./odin test tests/vendor -all-packages -vet -strict-style -disallow-do -define:ODIN_TEST_FANCY=false -define:ODIN_TEST_FAIL_ON_BAD_MEMORY=true
+        run: ./odin test tests/vendor -all-packages -vet -strict-style -disallow-do -define:ODIN_TEST_FANCY=false -define:ODIN_TEST_FAIL_ON_BAD_MEMORY=true -sanitize:address
       - name: Internals tests
-        run: ./odin test tests/internal -all-packages -vet -strict-style -disallow-do -define:ODIN_TEST_FANCY=false -define:ODIN_TEST_FAIL_ON_BAD_MEMORY=true
+        run: ./odin test tests/internal -all-packages -vet -strict-style -disallow-do -define:ODIN_TEST_FANCY=false -define:ODIN_TEST_FAIL_ON_BAD_MEMORY=true -sanitize:address
       - name: GitHub Issue tests
         run: |
           cd tests/issues
           ./run.sh
 
-      - name: Check benchmarks
-        run: ./odin check tests/benchmark -vet -strict-style -no-entry-point
-      - name: Odin check examples/all for Linux i386
-        run: ./odin check examples/all -vet -strict-style -disallow-do -target:linux_i386
-        if: matrix.os == 'ubuntu-latest'
-      - name: Odin check examples/all for Linux arm64
-        run: ./odin check examples/all -vet -strict-style -disallow-do -target:linux_arm64
-        if: matrix.os == 'ubuntu-latest'
-      - name: Odin check examples/all for FreeBSD amd64
-        run: ./odin check examples/all -vet -strict-style -disallow-do -target:freebsd_amd64
-        if: matrix.os == 'ubuntu-latest'
-      - name: Odin check examples/all for OpenBSD amd64
-        run: ./odin check examples/all -vet -strict-style -disallow-do -target:openbsd_amd64
-        if: matrix.os == 'ubuntu-latest'
-
-      - name: Odin check vendor/sdl3 for Linux i386
-        run: ./odin check vendor/sdl3 -vet -strict-style -disallow-do -no-entry-point -target:linux_i386
-        if: matrix.os == 'ubuntu-latest'
-      - name: Odin check vendor/sdl3 for Linux arm64
-        run: ./odin check vendor/sdl3 -vet -strict-style -disallow-do -no-entry-point -target:linux_arm64
-        if: matrix.os == 'ubuntu-latest'
-      - name: Odin check vendor/sdl3 for FreeBSD amd64
-        run: ./odin check vendor/sdl3 -vet -strict-style -disallow-do -no-entry-point -target:freebsd_amd64
-        if: matrix.os == 'ubuntu-latest'
-      - name: Odin check vendor/sdl3 for OpenBSD amd64
-        run: ./odin check vendor/sdl3 -vet -strict-style -disallow-do -no-entry-point -target:openbsd_amd64
-        if: matrix.os == 'ubuntu-latest'
-
-
       - name: Run demo on WASI WASM32
         run: |
           ./odin build examples/demo -target:wasi_wasm32 -vet -strict-style -disallow-do -out:demo
           wasmtime ./demo.wasm
         if: matrix.os == 'macos-14'
 
+      - name: Check benchmarks
+        run: ./odin check tests/benchmark -vet -strict-style -no-entry-point
+      - name: Odin check examples/all for Linux i386
+        if: matrix.os == 'ubuntu-latest'
+        run: ./odin check examples/all -vet -strict-style -disallow-do -target:linux_i386
+      - name: Odin check examples/all for Linux arm64
+        if: matrix.os == 'ubuntu-latest'
+        run: ./odin check examples/all -vet -strict-style -disallow-do -target:linux_arm64
+      - name: Odin check examples/all for FreeBSD amd64
+        if: matrix.os == 'ubuntu-latest'
+        run: ./odin check examples/all -vet -strict-style -disallow-do -target:freebsd_amd64
+      - name: Odin check examples/all for OpenBSD amd64
+        if: matrix.os == 'ubuntu-latest'
+        run: ./odin check examples/all -vet -strict-style -disallow-do -target:openbsd_amd64
+      - name: Odin check examples/all for js_wasm32
+        if: matrix.os == 'ubuntu-latest'
+        run: ./odin check examples/all -vet -strict-style -disallow-do -no-entry-point -target:js_wasm32
+      - name: Odin check examples/all for js_wasm64p32
+        if: matrix.os == 'ubuntu-latest'
+        run: ./odin check examples/all -vet -strict-style -disallow-do -no-entry-point -target:js_wasm64p32
+
+      - name: Odin check examples/all/sdl3 for Linux i386
+        if: matrix.os == 'ubuntu-latest'
+        run: ./odin check examples/all/sdl3 -vet -strict-style -disallow-do -no-entry-point -target:linux_i386
+      - name: Odin check examples/all/sdl3 for Linux arm64
+        if: matrix.os == 'ubuntu-latest'
+        run: ./odin check examples/all/sdl3 -vet -strict-style -disallow-do -no-entry-point -target:linux_arm64
+      - name: Odin check examples/all/sdl3 for FreeBSD amd64
+        if: matrix.os == 'ubuntu-latest'
+        run: ./odin check examples/all/sdl3 -vet -strict-style -disallow-do -no-entry-point -target:freebsd_amd64
+      - name: Odin check examples/all/sdl3 for OpenBSD amd64
+        if: matrix.os == 'ubuntu-latest'
+        run: ./odin check examples/all/sdl3 -vet -strict-style -disallow-do -no-entry-point -target:openbsd_amd64
+
   build_windows:
     name: Windows Build, Check, and Test
     runs-on: windows-2022
@@ -206,32 +214,32 @@ jobs:
         run: |
           call "C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Auxiliary\Build\vcvars64.bat
           odin check examples/all -vet -strict-style -disallow-do
-      - name: Odin check vendor/sdl3
+      - name: Odin check examples/all/sdl3
         shell: cmd
         run: |
           call "C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Auxiliary\Build\vcvars64.bat
-          odin check vendor/sdl3 -vet -strict-style -disallow-do -no-entry-point
+          odin check examples/all/sdl3 -vet -strict-style -disallow-do -no-entry-point
       - name: Core library tests
         shell: cmd
         run: |
           call "C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Auxiliary\Build\vcvars64.bat
-          odin test tests/core/normal.odin -file -all-packages -vet -strict-style -disallow-do -define:ODIN_TEST_FANCY=false -define:ODIN_TEST_FAIL_ON_BAD_MEMORY=true
+          odin test tests/core/normal.odin -file -all-packages -vet -strict-style -disallow-do -define:ODIN_TEST_FANCY=false -define:ODIN_TEST_FAIL_ON_BAD_MEMORY=true -sanitize:address
       - name: Optimized core library tests
         shell: cmd
         run: |
           call "C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Auxiliary\Build\vcvars64.bat
-          odin test tests/core/speed.odin -o:speed -file -all-packages -vet -strict-style -disallow-do -define:ODIN_TEST_FANCY=false -define:ODIN_TEST_FAIL_ON_BAD_MEMORY=true
+          odin test tests/core/speed.odin -o:speed -file -all-packages -vet -strict-style -disallow-do -define:ODIN_TEST_FANCY=false -define:ODIN_TEST_FAIL_ON_BAD_MEMORY=true -sanitize:address
       - name: Vendor library tests
         shell: cmd
         run: |
           call "C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Auxiliary\Build\vcvars64.bat
           copy vendor\lua\5.4\windows\*.dll .
-          odin test tests/vendor -all-packages -vet -strict-style -disallow-do -define:ODIN_TEST_FANCY=false -define:ODIN_TEST_FAIL_ON_BAD_MEMORY=true
+          odin test tests/vendor -all-packages -vet -strict-style -disallow-do -define:ODIN_TEST_FANCY=false -define:ODIN_TEST_FAIL_ON_BAD_MEMORY=true -sanitize:address
       - name: Odin internals tests
         shell: cmd
         run: |
           call "C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Auxiliary\Build\vcvars64.bat
-          odin test tests/internal -all-packages -vet -strict-style -disallow-do -define:ODIN_TEST_FANCY=false -define:ODIN_TEST_FAIL_ON_BAD_MEMORY=true
+          odin test tests/internal -all-packages -vet -strict-style -disallow-do -define:ODIN_TEST_FANCY=false -define:ODIN_TEST_FAIL_ON_BAD_MEMORY=true -sanitize:address
       - name: Check issues
         shell: cmd
         run: |
@@ -293,8 +301,8 @@ jobs:
       - name: Odin check examples/all
         run: ./odin check examples/all -target:linux_riscv64 -vet -strict-style -disallow-do
 
-      - name: Odin check vendor/sdl3
+      - name: Odin check examples/all/sdl3
-        run: ./odin check vendor/sdl3 -target:linux_riscv64 -vet -strict-style -disallow-do -no-entry-point
+        run: ./odin check examples/all/sdl3 -target:linux_riscv64 -vet -strict-style -disallow-do -no-entry-point
 
       - name: Install riscv64 toolchain and qemu
         run: sudo apt-get install -y qemu-user qemu-user-static gcc-12-riscv64-linux-gnu libc6-riscv64-cross

.gitignore

@@ -293,5 +293,6 @@ build.sh
 
 # RAD debugger project file
 *.raddbg
-
+*.rdi
+tests/issues/build/*
 misc/featuregen/featuregen

base/builtin/builtin.odin

@@ -7,13 +7,232 @@ nil   :: nil
 false :: 0!=0
 true  :: 0==0
 
-ODIN_OS      :: ODIN_OS
+// The following constants are added in `checker.cpp`'s `init_universal` procedure.
-ODIN_ARCH    :: ODIN_ARCH
+
-ODIN_ENDIAN  :: ODIN_ENDIAN
+/*
-ODIN_VENDOR  :: ODIN_VENDOR
+	An `enum` value indicating the target's CPU architecture.
-ODIN_VERSION :: ODIN_VERSION
+	Possible values are: `.amd64`, `.i386`, `.arm32`, `.arm64`, `.wasm32`, `.wasm64p32`, and `.riscv64`.
-ODIN_ROOT    :: ODIN_ROOT
+*/
-ODIN_DEBUG   :: ODIN_DEBUG
+ODIN_ARCH                       :: ODIN_ARCH
+
+/*
+	A `string` indicating the target's CPU architecture.
+	Possible values are: "amd64", "i386", "arm32", "arm64", "wasm32", "wasm64p32", "riscv64".
+*/
+ODIN_ARCH_STRING                :: ODIN_ARCH_STRING
+
+/*
+	An `enum` value indicating the type of compiled output, chosen using `-build-mode`.
+	Possible values are: `.Executable`, `.Dynamic`, `.Static`, `.Object`, `.Assembly`, and `.LLVM_IR`.
+*/
+ODIN_BUILD_MODE                 :: ODIN_BUILD_MODE
+
+/*
+	A `string` containing the name of the folder that contains the entry point,
+	e.g. for `%ODIN_ROOT%/examples/demo`, this would contain `demo`.
+*/
+ODIN_BUILD_PROJECT_NAME         :: ODIN_BUILD_PROJECT_NAME
+
+/*
+	An `i64` containing the time at which the executable was compiled, in nanoseconds.
+	This is compatible with the `time.Time` type, i.e. `time.Time{_nsec=ODIN_COMPILE_TIMESTAMP}`
+*/
+ODIN_COMPILE_TIMESTAMP          :: ODIN_COMPILE_TIMESTAMP
+
+/*
+	`true` if the `-debug` command line switch is passed, which enables debug info generation.
+*/
+ODIN_DEBUG                      :: ODIN_DEBUG
+
+/*
+	`true` if the `-default-to-nil-allocator` command line switch is passed,
+	which sets the initial `context.allocator` to an allocator that does nothing.
+*/
+ODIN_DEFAULT_TO_NIL_ALLOCATOR   :: ODIN_DEFAULT_TO_NIL_ALLOCATOR
+
+/*
+	`true` if the `-default-to-panic-allocator` command line switch is passed,
+	which sets the initial `context.allocator` to an allocator that panics if allocated from.
+*/
+ODIN_DEFAULT_TO_PANIC_ALLOCATOR :: ODIN_DEFAULT_TO_PANIC_ALLOCATOR
+
+/*
+	`true` if the `-disable-assert` command line switch is passed,
+	which removes all calls to `assert` from the program.
+*/
+ODIN_DISABLE_ASSERT             :: ODIN_DISABLE_ASSERT
+
+/*
+	An `enum` value indicating the endianness of the target.
+	Possible values are: `.Little` and `.Big`.
+*/
+ODIN_ENDIAN                     :: ODIN_ENDIAN
+
+/*
+	An `string` indicating the endianness of the target.
+	Possible values are: "little" and "big".
+*/
+ODIN_ENDIAN_STRING              :: ODIN_ENDIAN_STRING
+
+/*
+	An `enum` value set using the `-error-pos-style` switch, indicating the source location style used for compile errors and warnings.
+	Possible values are: `.Default` (Odin-style) and `.Unix`.
+*/
+ODIN_ERROR_POS_STYLE            :: ODIN_ERROR_POS_STYLE
+
+/*
+	`true` if the `-foreign-error-procedures` command line switch is passed,
+	which inhibits generation of runtime error procedures, so that they can be in a separate compilation unit.
+*/
+ODIN_FOREIGN_ERROR_PROCEDURES   :: ODIN_FOREIGN_ERROR_PROCEDURES
+
+/*
+	A `string` describing the microarchitecture used for code generation.
+	If not set using the `-microarch` command line switch, the compiler will pick a default.
+	Possible values include, but are not limited to: "sandybridge", "x86-64-v2".
+*/
+ODIN_MICROARCH_STRING           :: ODIN_MICROARCH_STRING
+
+/*
+	An `int` value representing the minimum OS version given to the linker, calculated as `major * 10_000 + minor * 100 + revision`.
+	If not set using the `-minimum-os-version` command line switch, it defaults to `0`, except on Darwin, where it's `11_00_00`.
+*/
+ODIN_MINIMUM_OS_VERSION         :: ODIN_MINIMUM_OS_VERSION
+
+/*
+	`true` if the `-no-bounds-check` command line switch is passed, which disables bounds checking at runtime.
+*/
+ODIN_NO_BOUNDS_CHECK            :: ODIN_NO_BOUNDS_CHECK
+
+/*
+	`true` if the `-no-crt` command line switch is passed, which inhibits linking with the C Runtime Library, a.k.a. LibC.
+*/
+ODIN_NO_CRT                     :: ODIN_NO_CRT
+
+/*
+	`true` if the `-no-entry-point` command line switch is passed, which makes the declaration of a `main` procedure optional.
+*/
+ODIN_NO_ENTRY_POINT             :: ODIN_NO_ENTRY_POINT
+
+/*
+	`true` if the `-no-rtti` command line switch is passed, which inhibits generation of full Runtime Type Information.
+*/
+ODIN_NO_RTTI                    :: ODIN_NO_RTTI
+
+/*
+	`true` if the `-no-type-assert` command line switch is passed, which disables type assertion checking program wide.
+*/
+ODIN_NO_TYPE_ASSERT             :: ODIN_NO_TYPE_ASSERT
+
+/*
+	An `enum` value indicating the optimization level selected using the `-o` command line switch.
+	Possible values are: `.None`, `.Minimal`, `.Size`, `.Speed`, and `.Aggressive`.
+
+	If `ODIN_OPTIMIZATION_MODE` is anything other than `.None` or `.Minimal`, the compiler will also perform a unity build,
+	and `ODIN_USE_SEPARATE_MODULES` will be set to `false` as a result.
+*/
+ODIN_OPTIMIZATION_MODE          :: ODIN_OPTIMIZATION_MODE
+
+/*
+	An `enum` value indicating what the target operating system is.
+*/
+ODIN_OS                         :: ODIN_OS
+
+/*
+	A `string` indicating what the target operating system is.
+*/
+ODIN_OS_STRING                  :: ODIN_OS_STRING
+
+/*
+	An `enum` value indicating the platform subtarget, chosen using the `-subtarget` switch.
+	Possible values are: `.Default` `.iOS`, and `.Android`.
+*/
+ODIN_PLATFORM_SUBTARGET         :: ODIN_PLATFORM_SUBTARGET
+
+/*
+	A `string` representing the path of the folder containing the Odin compiler,
+	relative to which we expect to find the `base` and `core` package collections.
+*/
+ODIN_ROOT                       :: ODIN_ROOT
+
+/*
+	A `bit_set` indicating the sanitizer flags set using the `-sanitize` command line switch.
+	Supported flags are `.Address`, `.Memory`, and `.Thread`.
+*/
+ODIN_SANITIZER_FLAGS            :: ODIN_SANITIZER_FLAGS
+
+/*
+	`true` if the code is being compiled via an invocation of `odin test`.
+*/
+ODIN_TEST                       :: ODIN_TEST
+
+/*
+	`true` if built using the experimental Tilde backend.
+*/
+ODIN_TILDE                      :: ODIN_TILDE
+
+/*
+	`true` by default, meaning each each package is built into its own object file, and then linked together.
+	`false` if the `-use-single-module` command line switch to force a unity build is provided.
+
+	If `ODIN_OPTIMIZATION_MODE` is anything other than `.None` or `.Minimal`, the compiler will also perform a unity build,
+	and this constant will also be set to `false`.
+*/
+ODIN_USE_SEPARATE_MODULES       :: ODIN_USE_SEPARATE_MODULES
+
+/*
+	`true` if Valgrind integration is supported on the target.
+*/
+ODIN_VALGRIND_SUPPORT           :: ODIN_VALGRIND_SUPPORT
+
+/*
+	A `string` which identifies the compiler being used. The official compiler sets this to `"odin"`.
+*/
+ODIN_VENDOR                     :: ODIN_VENDOR
+
+/*
+	A `string` containing the version of the Odin compiler, typically in the format `dev-YYYY-MM`.
+*/
+ODIN_VERSION                    :: ODIN_VERSION
+
+/*
+	A `string` containing the Git hash part of the Odin version.
+	Empty if `.git` could not be detected at the time the compiler was built.
+*/
+ODIN_VERSION_HASH               :: ODIN_VERSION_HASH
+
+/*
+	An `enum` set by the `-subsystem` flag, specifying which Windows subsystem the PE file was created for.
+	Possible values are:
+		`.Unknown` - Default and only value on non-Windows platforms
+		`.Console` - Default on Windows
+		`.Windows` - Can be used by graphical applications so Windows doesn't open an empty console
+
+	There are some other possible values for e.g. EFI applications, but only Console and Windows are supported.
+
+	See also: https://learn.microsoft.com/en-us/windows/win32/api/winnt/ns-winnt-image_optional_header64
+*/
+ODIN_WINDOWS_SUBSYSTEM          :: ODIN_WINDOWS_SUBSYSTEM
+
+/*
+	An `string` set by the `-subsystem` flag, specifying which Windows subsystem the PE file was created for.
+	Possible values are:
+		"UNKNOWN" - Default and only value on non-Windows platforms
+		"CONSOLE" - Default on Windows
+		"WINDOWS" - Can be used by graphical applications so Windows doesn't open an empty console
+
+	There are some other possible values for e.g. EFI applications, but only Console and Windows are supported.
+
+	See also: https://learn.microsoft.com/en-us/windows/win32/api/winnt/ns-winnt-image_optional_header64
+*/
+ODIN_WINDOWS_SUBSYSTEM_STRING   :: ODIN_WINDOWS_SUBSYSTEM_STRING
+
+/*
+	`true` if LLVM supports the f16 type.
+*/
+__ODIN_LLVM_F16_SUPPORTED       :: __ODIN_LLVM_F16_SUPPORTED
+
+
 
 byte :: u8 // alias
 
@@ -119,7 +338,8 @@ jmag       :: proc(value: Quaternion) -> Float ---
 kmag       :: proc(value: Quaternion) -> Float ---
 conj       :: proc(value: Complex_Or_Quaternion) -> Complex_Or_Quaternion ---
 
-expand_values :: proc(value: Struct_Or_Array) -> (A, B, C, ...) ---
+expand_values   :: proc(value: Struct_Or_Array) -> (A, B, C, ...) ---
+compress_values :: proc(values: ...) -> Struct_Or_Array_Like_Type ---
 
 min   :: proc(values: ..T) -> T ---
 max   :: proc(values: ..T) -> T ---
@@ -130,3 +350,6 @@ soa_zip :: proc(slices: ...) -> #soa[]Struct ---
 soa_unzip :: proc(value: $S/#soa[]$E) -> (slices: ...) ---
 
 unreachable :: proc() -> ! ---
+
+// Where T is a string, slice, dynamic array, or pointer to an array type
+raw_data :: proc(t: $T) -> rawptr

base/intrinsics/intrinsics.odin

@@ -169,6 +169,7 @@ type_is_union            :: proc($T: typeid) -> bool ---
 type_is_enum             :: proc($T: typeid) -> bool ---
 type_is_proc             :: proc($T: typeid) -> bool ---
 type_is_bit_set          :: proc($T: typeid) -> bool ---
+type_is_bit_field        :: proc($T: typeid) -> bool ---
 type_is_simd_vector      :: proc($T: typeid) -> bool ---
 type_is_matrix           :: proc($T: typeid) -> bool ---
 
@@ -221,6 +222,9 @@ type_map_cell_info :: proc($T: typeid)           -> ^runtime.Map_Cell_Info ---
 type_convert_variants_to_pointers :: proc($T: typeid) -> typeid where type_is_union(T) ---
 type_merge :: proc($U, $V: typeid) -> typeid where type_is_union(U), type_is_union(V) ---
 
+type_integer_to_unsigned :: proc($T: typeid) -> type where type_is_integer(T), !type_is_unsigned(T) ---
+type_integer_to_signed   :: proc($T: typeid) -> type where type_is_integer(T), type_is_unsigned(T) ---
+
 type_has_shared_fields :: proc($U, $V: typeid) -> bool where type_is_struct(U), type_is_struct(V) ---
 
 constant_utf16_cstring :: proc($literal: string) -> [^]u16 ---
@@ -274,8 +278,12 @@ simd_lanes_ge :: proc(a, b: #simd[N]T) -> #simd[N]Integer ---
 simd_extract :: proc(a: #simd[N]T, idx: uint) -> T ---
 simd_replace :: proc(a: #simd[N]T, idx: uint, elem: T) -> #simd[N]T ---
 
+simd_reduce_add_bisect  :: proc(a: #simd[N]T) -> T where type_is_integer(T) || type_is_float(T)---
+simd_reduce_mul_bisect  :: proc(a: #simd[N]T) -> T where type_is_integer(T) || type_is_float(T)---
 simd_reduce_add_ordered :: proc(a: #simd[N]T) -> T where type_is_integer(T) || type_is_float(T)---
 simd_reduce_mul_ordered :: proc(a: #simd[N]T) -> T where type_is_integer(T) || type_is_float(T)---
+simd_reduce_add_pairs   :: proc(a: #simd[N]T) -> T where type_is_integer(T) || type_is_float(T)---
+simd_reduce_mul_pairs   :: proc(a: #simd[N]T) -> T where type_is_integer(T) || type_is_float(T)---
 simd_reduce_min         :: proc(a: #simd[N]T) -> T where type_is_integer(T) || type_is_float(T)---
 simd_reduce_max         :: proc(a: #simd[N]T) -> T where type_is_integer(T) || type_is_float(T)---
 simd_reduce_and         :: proc(a: #simd[N]T) -> T where type_is_integer(T) || type_is_float(T)---
@@ -298,7 +306,7 @@ simd_masked_store :: proc(ptr: rawptr, val: #simd[N]T, mask: #simd[N]U)
 simd_masked_expand_load    :: proc(ptr: rawptr, val: #simd[N]T, mask: #simd[N]U) -> #simd[N]T where type_is_integer(U) || type_is_boolean(U) ---
 simd_masked_compress_store :: proc(ptr: rawptr, val: #simd[N]T, mask: #simd[N]U)              where type_is_integer(U) || type_is_boolean(U) ---
 
-
+simd_indices :: proc($T: typeid/#simd[$N]$E) -> T where type_is_numeric(T) ---
 
 simd_shuffle :: proc(a, b: #simd[N]T, indices: ..int) -> #simd[len(indices)]T ---
 simd_select  :: proc(cond: #simd[N]boolean_or_integer, true, false: #simd[N]T) -> #simd[N]T ---
@@ -353,15 +361,18 @@ x86_xgetbv :: proc(cx: u32) -> (eax, edx: u32) ---
 objc_object   :: struct{}
 objc_selector :: struct{}
 objc_class    :: struct{}
+objc_ivar     :: struct{}
+
 objc_id    :: ^objc_object
 objc_SEL   :: ^objc_selector
 objc_Class :: ^objc_class
+objc_Ivar  :: ^objc_ivar
 
 objc_find_selector     :: proc($name: string) -> objc_SEL   ---
 objc_register_selector :: proc($name: string) -> objc_SEL   ---
 objc_find_class        :: proc($name: string) -> objc_Class ---
 objc_register_class    :: proc($name: string) -> objc_Class ---
-
+objc_ivar_get          :: proc(self: ^$T) -> ^$U ---
 
 valgrind_client_request :: proc(default: uintptr, request: uintptr, a0, a1, a2, a3, a4: uintptr) -> uintptr ---
 

base/runtime/core_builtin.odin

@@ -648,6 +648,9 @@ append_nothing :: proc(array: ^$T/[dynamic]$E, loc := #caller_location) -> (n: i
 
 @builtin
 inject_at_elem :: proc(array: ^$T/[dynamic]$E, #any_int index: int, #no_broadcast arg: E, loc := #caller_location) -> (ok: bool, err: Allocator_Error) #no_bounds_check #optional_allocator_error {
+	when !ODIN_NO_BOUNDS_CHECK {
+		ensure(index >= 0, "Index must be positive.", loc)
+	}
 	if array == nil {
 		return
 	}
@@ -666,6 +669,9 @@ inject_at_elem :: proc(array: ^$T/[dynamic]$E, #any_int index: int, #no_broadcas
 
 @builtin
 inject_at_elems :: proc(array: ^$T/[dynamic]$E, #any_int index: int, #no_broadcast args: ..E, loc := #caller_location) -> (ok: bool, err: Allocator_Error) #no_bounds_check #optional_allocator_error {
+	when !ODIN_NO_BOUNDS_CHECK {
+		ensure(index >= 0, "Index must be positive.", loc)
+	}
 	if array == nil {
 		return
 	}
@@ -689,6 +695,9 @@ inject_at_elems :: proc(array: ^$T/[dynamic]$E, #any_int index: int, #no_broadca
 
 @builtin
 inject_at_elem_string :: proc(array: ^$T/[dynamic]$E/u8, #any_int index: int, arg: string, loc := #caller_location) -> (ok: bool, err: Allocator_Error) #no_bounds_check #optional_allocator_error {
+	when !ODIN_NO_BOUNDS_CHECK {
+		ensure(index >= 0, "Index must be positive.", loc)
+	}
 	if array == nil {
 		return
 	}

base/runtime/default_temp_allocator_arena.odin

@@ -1,6 +1,7 @@
 package runtime
 
 import "base:intrinsics"
+import "base:sanitizer"
 
 DEFAULT_ARENA_GROWING_MINIMUM_BLOCK_SIZE :: uint(DEFAULT_TEMP_ALLOCATOR_BACKING_SIZE)
 
@@ -43,6 +44,8 @@ memory_block_alloc :: proc(allocator: Allocator, capacity: uint, alignment: uint
 	block.base = ([^]byte)(uintptr(block) + base_offset)
 	block.capacity = uint(end - uintptr(block.base))
 
+	sanitizer.address_poison(block.base, block.capacity)
+
 	// Should be zeroed
 	assert(block.used == 0)
 	assert(block.prev == nil)
@@ -52,6 +55,7 @@ memory_block_alloc :: proc(allocator: Allocator, capacity: uint, alignment: uint
 memory_block_dealloc :: proc(block_to_free: ^Memory_Block, loc := #caller_location) {
 	if block_to_free != nil {
 		allocator := block_to_free.allocator
+		sanitizer.address_unpoison(block_to_free.base, block_to_free.capacity)
 		mem_free(block_to_free, allocator, loc)
 	}
 }
@@ -83,6 +87,7 @@ alloc_from_memory_block :: proc(block: ^Memory_Block, min_size, alignment: uint)
 		return
 	}
 	data = block.base[block.used+alignment_offset:][:min_size]
+	sanitizer.address_unpoison(block.base[block.used:block.used+size])
 	block.used += size
 	return
 }
@@ -162,6 +167,7 @@ arena_free_all :: proc(arena: ^Arena, loc := #caller_location) {
 	if arena.curr_block != nil {
 		intrinsics.mem_zero(arena.curr_block.base, arena.curr_block.used)
 		arena.curr_block.used = 0
+		sanitizer.address_poison(arena.curr_block.base, arena.curr_block.capacity)
 	}
 	arena.total_used = 0
 }
@@ -226,6 +232,7 @@ arena_allocator_proc :: proc(allocator_data: rawptr, mode: Allocator_Mode,
 					// grow data in-place, adjusting next allocation
 					block.used = uint(new_end)
 					data = block.base[start:new_end]
+					sanitizer.address_unpoison(data)
 					return
 				}
 			}
@@ -299,6 +306,7 @@ arena_temp_end :: proc(temp: Arena_Temp, loc := #caller_location) {
 			assert(block.used >= temp.used, "out of order use of arena_temp_end", loc)
 			amount_to_zero := block.used-temp.used
 			intrinsics.mem_zero(block.base[temp.used:], amount_to_zero)
+			sanitizer.address_poison(block.base[temp.used:block.capacity])
 			block.used = temp.used
 			arena.total_used -= amount_to_zero
 		}

base/runtime/heap_allocator_windows.odin

@@ -1,5 +1,7 @@
 package runtime
 
+import "../sanitizer"
+
 foreign import kernel32 "system:Kernel32.lib"
 
 @(private="file")
@@ -16,7 +18,10 @@ foreign kernel32 {
 
 _heap_alloc :: proc "contextless" (size: int, zero_memory := true) -> rawptr {
 	HEAP_ZERO_MEMORY :: 0x00000008
-	return HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY if zero_memory else 0, uint(size))
+	ptr := HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY if zero_memory else 0, uint(size))
+	// NOTE(lucas): asan not guarunteed to unpoison win32 heap out of the box, do it ourselves
+	sanitizer.address_unpoison(ptr, size)
+	return ptr
 }
 _heap_resize :: proc "contextless" (ptr: rawptr, new_size: int) -> rawptr {
 	if new_size == 0 {
@@ -28,7 +33,10 @@ _heap_resize :: proc "contextless" (ptr: rawptr, new_size: int) -> rawptr {
 	}
 
 	HEAP_ZERO_MEMORY :: 0x00000008
-	return HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, ptr, uint(new_size))
+	new_ptr := HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, ptr, uint(new_size))
+	// NOTE(lucas): asan not guarunteed to unpoison win32 heap out of the box, do it ourselves
+	sanitizer.address_unpoison(new_ptr, new_size)
+	return new_ptr
 }
 _heap_free :: proc "contextless" (ptr: rawptr) {
 	if ptr == nil {

base/runtime/internal.odin

@@ -16,6 +16,12 @@ RUNTIME_REQUIRE :: false // !ODIN_TILDE
 @(private)
 __float16 :: f16 when __ODIN_LLVM_F16_SUPPORTED else u16
 
+HAS_HARDWARE_SIMD :: false when (ODIN_ARCH == .amd64 || ODIN_ARCH == .i386) && !intrinsics.has_target_feature("sse2") else
+	false when (ODIN_ARCH == .arm64 || ODIN_ARCH == .arm32) && !intrinsics.has_target_feature("neon") else
+	false when (ODIN_ARCH == .wasm64p32 || ODIN_ARCH == .wasm32) && !intrinsics.has_target_feature("simd128") else
+	false when (ODIN_ARCH == .riscv64) && !intrinsics.has_target_feature("v") else
+	true
+
 
 @(private)
 byte_slice :: #force_inline proc "contextless" (data: rawptr, len: int) -> []byte #no_bounds_check {
@@ -229,151 +235,242 @@ memory_equal :: proc "contextless" (x, y: rawptr, n: int) -> bool {
 	case n == 0: return true
 	case x == y: return true
 	}
-	a, b := ([^]byte)(x), ([^]byte)(y)
+	a, b := cast([^]byte)x, cast([^]byte)y
-	length := uint(n)
 
-	for i := uint(0); i < length; i += 1 {
+	n := uint(n)
+	i := uint(0)
+	m := uint(0)
+
+	if n >= 8 {
+		when HAS_HARDWARE_SIMD {
+			// Avoid using 256-bit SIMD on platforms where its emulation is
+			// likely to be less than ideal.
+			when ODIN_ARCH == .amd64 && intrinsics.has_target_feature("avx2") {
+				m = n / 32 * 32
+				for /**/; i < m; i += 32 {
+					load_a := intrinsics.unaligned_load(cast(^#simd[32]u8)&a[i])
+					load_b := intrinsics.unaligned_load(cast(^#simd[32]u8)&b[i])
+					ne := intrinsics.simd_lanes_ne(load_a, load_b)
+					if intrinsics.simd_reduce_or(ne) != 0 {
+						return false
+					}
+				}
+			}
+		}
+
+		m = (n-i) / 16 * 16
+		for /**/; i < m; i += 16 {
+			load_a := intrinsics.unaligned_load(cast(^#simd[16]u8)&a[i])
+			load_b := intrinsics.unaligned_load(cast(^#simd[16]u8)&b[i])
+			ne := intrinsics.simd_lanes_ne(load_a, load_b)
+			if intrinsics.simd_reduce_or(ne) != 0 {
+				return false
+			}
+		}
+
+		m = (n-i) / 8 * 8
+		for /**/; i < m; i += 8 {
+			if intrinsics.unaligned_load(cast(^uintptr)&a[i]) != intrinsics.unaligned_load(cast(^uintptr)&b[i]) {
+				return false
+			}
+		}
+	}
+
+	for /**/; i < n; i += 1 {
 		if a[i] != b[i] {
 			return false
 		}
 	}
 	return true
-	
-/*
-
-	when size_of(uint) == 8 {
-		if word_length := length >> 3; word_length != 0 {
-			for _ in 0..<word_length {
-				if intrinsics.unaligned_load((^u64)(a)) != intrinsics.unaligned_load((^u64)(b)) {
-					return false
-				}
-				a = a[size_of(u64):]
-				b = b[size_of(u64):]
-			}
-		}
-		
-		if length & 4 != 0 {
-			if intrinsics.unaligned_load((^u32)(a)) != intrinsics.unaligned_load((^u32)(b)) {
-				return false
-			}
-			a = a[size_of(u32):]
-			b = b[size_of(u32):]
-		}
-		
-		if length & 2 != 0 {
-			if intrinsics.unaligned_load((^u16)(a)) != intrinsics.unaligned_load((^u16)(b)) {
-				return false
-			}
-			a = a[size_of(u16):]
-			b = b[size_of(u16):]
-		}
-		
-		if length & 1 != 0 && a[0] != b[0] {
-			return false	
-		}
-		return true
-	} else {
-		if word_length := length >> 2; word_length != 0 {
-			for _ in 0..<word_length {
-				if intrinsics.unaligned_load((^u32)(a)) != intrinsics.unaligned_load((^u32)(b)) {
-					return false
-				}
-				a = a[size_of(u32):]
-				b = b[size_of(u32):]
-			}
-		}
-		
-		length &= 3
-		
-		if length != 0 {
-			for i in 0..<length {
-				if a[i] != b[i] {
-					return false
-				}
-			}
-		}
-
-		return true
-	}
-*/
-
 }
-memory_compare :: proc "contextless" (a, b: rawptr, n: int) -> int #no_bounds_check {
+
+memory_compare :: proc "contextless" (x, y: rawptr, n: int) -> int #no_bounds_check {
 	switch {
-	case a == b:   return 0
+	case x == y:   return 0
-	case a == nil: return -1
+	case x == nil: return -1
-	case b == nil: return +1
+	case y == nil: return +1
 	}
+	a, b := cast([^]byte)x, cast([^]byte)y
 	
-	x := uintptr(a)
+	n := uint(n)
-	y := uintptr(b)
+	i := uint(0)
-	n := uintptr(n)
+	m := uint(0)
 
-	SU :: size_of(uintptr)
+	when HAS_HARDWARE_SIMD {
-	fast := n/SU + 1
+		when ODIN_ARCH == .amd64 && intrinsics.has_target_feature("avx2") {
-	offset := (fast-1)*SU
+			m = n / 32 * 32
-	curr_block := uintptr(0)
+			for /**/; i < m; i += 32 {
-	if n < SU {
+				load_a := intrinsics.unaligned_load(cast(^#simd[32]u8)&a[i])
-		fast = 0
+				load_b := intrinsics.unaligned_load(cast(^#simd[32]u8)&b[i])
-	}
+				comparison := intrinsics.simd_lanes_ne(load_a, load_b)
-
+				if intrinsics.simd_reduce_or(comparison) != 0 {
-	for /**/; curr_block < fast; curr_block += 1 {
+					sentinel: #simd[32]u8 = u8(0xFF)
-		va := (^uintptr)(x + curr_block * size_of(uintptr))^
+					indices := intrinsics.simd_indices(#simd[32]u8)
-		vb := (^uintptr)(y + curr_block * size_of(uintptr))^
+					index_select := intrinsics.simd_select(comparison, indices, sentinel)
-		if va ~ vb != 0 {
+					index_reduce := cast(uint)intrinsics.simd_reduce_min(index_select)
-			for pos := curr_block*SU; pos < n; pos += 1 {
+					return -1 if a[i+index_reduce] < b[i+index_reduce] else +1
-				a := (^byte)(x+pos)^
-				b := (^byte)(y+pos)^
-				if a ~ b != 0 {
-					return -1 if (int(a) - int(b)) < 0 else +1
 				}
 			}
 		}
 	}
 
-	for /**/; offset < n; offset += 1 {
+	m = (n-i) / 16 * 16
-		a := (^byte)(x+offset)^
+	for /**/; i < m; i += 16 {
-		b := (^byte)(y+offset)^
+		load_a := intrinsics.unaligned_load(cast(^#simd[16]u8)&a[i])
-		if a ~ b != 0 {
+		load_b := intrinsics.unaligned_load(cast(^#simd[16]u8)&b[i])
-			return -1 if (int(a) - int(b)) < 0 else +1
+		comparison := intrinsics.simd_lanes_ne(load_a, load_b)
+		if intrinsics.simd_reduce_or(comparison) != 0 {
+			sentinel: #simd[16]u8 = u8(0xFF)
+			indices := intrinsics.simd_indices(#simd[16]u8)
+			index_select := intrinsics.simd_select(comparison, indices, sentinel)
+			index_reduce := cast(uint)intrinsics.simd_reduce_min(index_select)
+			return -1 if a[i+index_reduce] < b[i+index_reduce] else +1
 		}
 	}
 
+	// 64-bit SIMD is faster than using a `uintptr` to detect a difference then
+	// re-iterating with the byte-by-byte loop, at least on AMD64.
+	m = (n-i) / 8 * 8
+	for /**/; i < m; i += 8 {
+		load_a := intrinsics.unaligned_load(cast(^#simd[8]u8)&a[i])
+		load_b := intrinsics.unaligned_load(cast(^#simd[8]u8)&b[i])
+		comparison := intrinsics.simd_lanes_ne(load_a, load_b)
+		if intrinsics.simd_reduce_or(comparison) != 0 {
+			sentinel: #simd[8]u8 = u8(0xFF)
+			indices := intrinsics.simd_indices(#simd[8]u8)
+			index_select := intrinsics.simd_select(comparison, indices, sentinel)
+			index_reduce := cast(uint)intrinsics.simd_reduce_min(index_select)
+			return -1 if a[i+index_reduce] < b[i+index_reduce] else +1
+		}
+	}
+
+	for /**/; i < n; i += 1 {
+		if a[i] ~ b[i] != 0 {
+			return -1 if int(a[i]) - int(b[i]) < 0 else +1
+		}
+	}
 	return 0
 }
 
 memory_compare_zero :: proc "contextless" (a: rawptr, n: int) -> int #no_bounds_check {
-	x := uintptr(a)
+	n := uint(n)
-	n := uintptr(n)
+	i := uint(0)
+	m := uint(0)
 
-	SU :: size_of(uintptr)
+	// Because we're comparing against zero, we never return -1, as that would
-	fast := n/SU + 1
+	// indicate the compared value is less than zero.
-	offset := (fast-1)*SU
+	//
-	curr_block := uintptr(0)
+	// Note that a zero return value here means equality.
-	if n < SU {
+
-		fast = 0
+	bytes := ([^]u8)(a)
+
+	if n >= 8 {
+		when HAS_HARDWARE_SIMD {
+			when ODIN_ARCH == .amd64 && intrinsics.has_target_feature("avx2") {
+				scanner32: #simd[32]u8
+				m = n / 32 * 32
+				for /**/; i < m; i += 32 {
+					load := intrinsics.unaligned_load(cast(^#simd[32]u8)&bytes[i])
+					ne := intrinsics.simd_lanes_ne(scanner32, load)
+					if intrinsics.simd_reduce_or(ne) > 0 {
+						return 1
+					}
+				}
+			}
+		}
+
+		scanner16: #simd[16]u8
+		m = (n-i) / 16 * 16
+		for /**/; i < m; i += 16 {
+			load := intrinsics.unaligned_load(cast(^#simd[16]u8)&bytes[i])
+			ne := intrinsics.simd_lanes_ne(scanner16, load)
+			if intrinsics.simd_reduce_or(ne) != 0 {
+				return 1
+			}
+		}
+
+		m = (n-i) / 8 * 8
+		for /**/; i < m; i += 8 {
+			if intrinsics.unaligned_load(cast(^uintptr)&bytes[i]) != 0 {
+				return 1
+			}
+		}
 	}
 
-	for /**/; curr_block < fast; curr_block += 1 {
+	for /**/; i < n; i += 1 {
-		va := (^uintptr)(x + curr_block * size_of(uintptr))^
+		if bytes[i] != 0 {
-		if va ~ 0 != 0 {
+			return 1
-			for pos := curr_block*SU; pos < n; pos += 1 {
+		}
-				a := (^byte)(x+pos)^
+	}
-				if a ~ 0 != 0 {
+	return 0
-					return -1 if int(a) < 0 else +1
+}
+
+memory_prefix_length :: proc "contextless" (x, y: rawptr, n: int) -> (idx: int) #no_bounds_check {
+	switch {
+	case x == y:   return n
+	case x == nil: return 0
+	case y == nil: return 0
+	}
+	a, b := cast([^]byte)x, cast([^]byte)y
+
+	n := uint(n)
+	i := uint(0)
+	m := uint(0)
+
+	when HAS_HARDWARE_SIMD {
+		when ODIN_ARCH == .amd64 && intrinsics.has_target_feature("avx2") {
+			m = n / 32 * 32
+			for /**/; i < m; i += 32 {
+				load_a := intrinsics.unaligned_load(cast(^#simd[32]u8)&a[i])
+				load_b := intrinsics.unaligned_load(cast(^#simd[32]u8)&b[i])
+				comparison := intrinsics.simd_lanes_ne(load_a, load_b)
+				if intrinsics.simd_reduce_or(comparison) != 0 {
+					sentinel: #simd[32]u8 = u8(0xFF)
+					indices := intrinsics.simd_indices(#simd[32]u8)
+					index_select := intrinsics.simd_select(comparison, indices, sentinel)
+					index_reduce := cast(uint)intrinsics.simd_reduce_min(index_select)
+					return int(i + index_reduce)
 				}
 			}
 		}
 	}
 
-	for /**/; offset < n; offset += 1 {
+	m = (n-i) / 16 * 16
-		a := (^byte)(x+offset)^
+	for /**/; i < m; i += 16 {
-		if a ~ 0 != 0 {
+		load_a := intrinsics.unaligned_load(cast(^#simd[16]u8)&a[i])
-			return -1 if int(a) < 0 else +1
+		load_b := intrinsics.unaligned_load(cast(^#simd[16]u8)&b[i])
+		comparison := intrinsics.simd_lanes_ne(load_a, load_b)
+		if intrinsics.simd_reduce_or(comparison) != 0 {
+			sentinel: #simd[16]u8 = u8(0xFF)
+			indices := intrinsics.simd_indices(#simd[16]u8)
+			index_select := intrinsics.simd_select(comparison, indices, sentinel)
+			index_reduce := cast(uint)intrinsics.simd_reduce_min(index_select)
+			return int(i + index_reduce)
 		}
 	}
 
-	return 0
+	// 64-bit SIMD is faster than using a `uintptr` to detect a difference then
+	// re-iterating with the byte-by-byte loop, at least on AMD64.
+	m = (n-i) / 8 * 8
+	for /**/; i < m; i += 8 {
+		load_a := intrinsics.unaligned_load(cast(^#simd[8]u8)&a[i])
+		load_b := intrinsics.unaligned_load(cast(^#simd[8]u8)&b[i])
+		comparison := intrinsics.simd_lanes_ne(load_a, load_b)
+		if intrinsics.simd_reduce_or(comparison) != 0 {
+			sentinel: #simd[8]u8 = u8(0xFF)
+			indices := intrinsics.simd_indices(#simd[8]u8)
+			index_select := intrinsics.simd_select(comparison, indices, sentinel)
+			index_reduce := cast(uint)intrinsics.simd_reduce_min(index_select)
+			return int(i + index_reduce)
+		}
+	}
+
+	for /**/; i < n; i += 1 {
+		if a[i] ~ b[i] != 0 {
+			return int(i)
+		}
+	}
+	return int(n)
 }
 
 string_eq :: proc "contextless" (lhs, rhs: string) -> bool {
@@ -1106,3 +1203,11 @@ __read_bits :: proc "contextless" (dst, src: [^]byte, offset: uintptr, size: uin
 		dst[j>>3]  |= the_bit<<(j&7)
 	}
 }
+
+when .Address in ODIN_SANITIZER_FLAGS {
+	foreign {
+		@(require)
+		__asan_unpoison_memory_region :: proc "system" (address: rawptr, size: uint) ---
+	}
+}
+

base/runtime/procs_darwin.odin

@@ -2,21 +2,34 @@
 package runtime
 
 @(priority_index=-1e6)
-foreign import "system:Foundation.framework"
+foreign import ObjC "system:objc"
 
 import "base:intrinsics"
 
-objc_id :: ^intrinsics.objc_object
+objc_id    :: ^intrinsics.objc_object
 objc_Class :: ^intrinsics.objc_class
-objc_SEL :: ^intrinsics.objc_selector
+objc_SEL   :: ^intrinsics.objc_selector
+objc_Ivar  :: ^intrinsics.objc_ivar
+objc_BOOL  :: bool
 
-foreign Foundation {
+
-	objc_lookUpClass :: proc "c" (name: cstring) -> objc_Class ---
+objc_IMP :: proc "c" (object: objc_id, sel: objc_SEL, #c_vararg args: ..any) -> objc_id
+
+foreign ObjC {
 	sel_registerName :: proc "c" (name: cstring) -> objc_SEL ---
-	objc_allocateClassPair :: proc "c" (superclass: objc_Class, name: cstring, extraBytes: uint) -> objc_Class ---
 
 	objc_msgSend        :: proc "c" (self: objc_id, op: objc_SEL, #c_vararg args: ..any) ---
 	objc_msgSend_fpret  :: proc "c" (self: objc_id, op: objc_SEL, #c_vararg args: ..any) -> f64 ---
 	objc_msgSend_fp2ret :: proc "c" (self: objc_id, op: objc_SEL, #c_vararg args: ..any) -> complex128 ---
 	objc_msgSend_stret  :: proc "c" (self: objc_id, op: objc_SEL, #c_vararg args: ..any) ---
+
+	objc_lookUpClass          :: proc "c" (name: cstring) -> objc_Class ---
+	objc_allocateClassPair    :: proc "c" (superclass: objc_Class, name: cstring, extraBytes: uint) -> objc_Class ---
+	objc_registerClassPair    :: proc "c" (cls : objc_Class) ---
+	class_addMethod           :: proc "c" (cls: objc_Class, name: objc_SEL, imp: objc_IMP, types: cstring) -> objc_BOOL ---
+	class_addIvar             :: proc "c" (cls: objc_Class, name: cstring, size: uint, alignment: u8, types: cstring) -> objc_BOOL ---
+	class_getInstanceVariable :: proc "c" (cls : objc_Class, name: cstring) -> objc_Ivar ---
+	class_getInstanceSize     :: proc "c" (cls : objc_Class) -> uint ---
+	ivar_getOffset            :: proc "c" (v: objc_Ivar) -> uintptr ---
 }
+

base/sanitizer/address.odin

@@ -40,9 +40,10 @@ Address_Access_Type :: enum {
 	write,
 }
 
-Address_Located_Address_String :: struct {
+Address_Located_Address :: struct {
 	category: string,
 	name: string,
+	region: []byte,
 }
 
 Address_Shadow_Mapping :: struct {
@@ -50,30 +51,81 @@ Address_Shadow_Mapping :: struct {
 	offset: uint,
 }
 
+/*
+Marks a slice as unaddressable
+
+Code instrumented with `-sanitize:address` is forbidden from accessing any address
+within the slice. This procedure is not thread-safe because no two threads can
+poison or unpoison memory in the same memory region region simultaneously.
+
+When asan is not enabled this procedure does nothing.
+*/
+@(no_sanitize_address)
 address_poison_slice :: proc "contextless" (region: $T/[]$E) {
 	when ASAN_ENABLED {
 		__asan_poison_memory_region(raw_data(region), size_of(E) * len(region))
 	}
 }
 
+/*
+Marks a slice as addressable
+
+Code instrumented with `-sanitize:address` is allowed to access any address
+within the slice again. This procedure is not thread-safe because no two threads
+can poison or unpoison memory in the same memory region region simultaneously.
+
+When asan is not enabled this procedure does nothing.
+*/
+@(no_sanitize_address)
 address_unpoison_slice :: proc "contextless" (region: $T/[]$E) {
 	when ASAN_ENABLED {
 		__asan_unpoison_memory_region(raw_data(region), size_of(E) * len(region))
 	}
 }
 
+/*
+Marks a pointer as unaddressable
+
+Code instrumented with `-sanitize:address` is forbidden from accessing any address
+within the region the pointer points to. This procedure is not thread-safe because no
+two threads can poison or unpoison memory in the same memory region region simultaneously.
+
+When asan is not enabled this procedure does nothing.
+*/
+@(no_sanitize_address)
 address_poison_ptr :: proc "contextless" (ptr: ^$T) {
 	when ASAN_ENABLED {
 		__asan_poison_memory_region(ptr, size_of(T))
 	}
 }
 
+/*
+Marks a pointer as addressable
+
+Code instrumented with `-sanitize:address` is allowed to access any address
+within the region the pointer points to again. This procedure is not thread-safe
+because no two threads can poison or unpoison memory in the same memory region
+region simultaneously.
+
+When asan is not enabled this procedure does nothing.
+*/
+@(no_sanitize_address)
 address_unpoison_ptr :: proc "contextless" (ptr: ^$T) {
 	when ASAN_ENABLED {
 		__asan_unpoison_memory_region(ptr, size_of(T))
 	}
 }
 
+/*
+Marks the region covering `[ptr, ptr+len)` as unaddressable
+
+Code instrumented with `-sanitize:address` is forbidden from accessing any address
+within the region. This procedure is not thread-safe because no two threads can
+poison or unpoison memory in the same memory region region simultaneously.
+
+When asan is not enabled this procedure does nothing.
+*/
+@(no_sanitize_address)
 address_poison_rawptr :: proc "contextless" (ptr: rawptr, len: int) {
 	when ASAN_ENABLED {
 		assert_contextless(len >= 0)
@@ -81,6 +133,32 @@ address_poison_rawptr :: proc "contextless" (ptr: rawptr, len: int) {
 	}
 }
 
+/*
+Marks the region covering `[ptr, ptr+len)` as unaddressable
+
+Code instrumented with `-sanitize:address` is forbidden from accessing any address
+within the region. This procedure is not thread-safe because no two threads can
+poison or unpoison memory in the same memory region region simultaneously.
+
+When asan is not enabled this procedure does nothing.
+*/
+@(no_sanitize_address)
+address_poison_rawptr_uint :: proc "contextless" (ptr: rawptr, len: uint) {
+	when ASAN_ENABLED {
+		__asan_poison_memory_region(ptr, len)
+	}
+}
+
+/*
+Marks the region covering `[ptr, ptr+len)` as addressable
+
+Code instrumented with `-sanitize:address` is allowed to access any address
+within the region again. This procedure is not thread-safe because no two
+threads can poison or unpoison memory in the same memory region region simultaneously.
+
+When asan is not enabled this procedure does nothing.
+*/
+@(no_sanitize_address)
 address_unpoison_rawptr :: proc "contextless" (ptr: rawptr, len: int) {
 	when ASAN_ENABLED {
 		assert_contextless(len >= 0)
@@ -88,25 +166,61 @@ address_unpoison_rawptr :: proc "contextless" (ptr: rawptr, len: int) {
 	}
 }
 
+/*
+Marks the region covering `[ptr, ptr+len)` as addressable
+
+Code instrumented with `-sanitize:address` is allowed to access any address
+within the region again. This procedure is not thread-safe because no two
+threads can poison or unpoison memory in the same memory region region simultaneously.
+
+When asan is not enabled this procedure does nothing.
+*/
+@(no_sanitize_address)
+address_unpoison_rawptr_uint :: proc "contextless" (ptr: rawptr, len: uint) {
+	when ASAN_ENABLED {
+		__asan_unpoison_memory_region(ptr, len)
+	}
+}
+
 address_poison :: proc {
 	address_poison_slice,
 	address_poison_ptr,
 	address_poison_rawptr,
+	address_poison_rawptr_uint,
 }
 
 address_unpoison :: proc {
 	address_unpoison_slice,
 	address_unpoison_ptr,
 	address_unpoison_rawptr,
+	address_unpoison_rawptr_uint,
 }
 
+/*
+Registers a callback to be run when asan detects a memory error right before terminating
+the process.
+
+This can be used for logging and/or debugging purposes.
+
+When asan is not enabled this procedure does nothing.
+*/
+@(no_sanitize_address)
 address_set_death_callback :: proc "contextless" (callback: Address_Death_Callback) {
 	when ASAN_ENABLED {
 		__sanitizer_set_death_callback(callback)
 	}
 }
 
-address_region_is_poisoned_slice :: proc "contextless" (region: []$T/$E) -> rawptr {
+/*
+Checks if the memory region covered by the slice is poisoned.
+
+If it is poisoned this procedure returns the address which would result
+in an asan error.
+
+When asan is not enabled this procedure returns `nil`.
+*/
+@(no_sanitize_address)
+address_region_is_poisoned_slice :: proc "contextless" (region: $T/[]$E) -> rawptr {
 	when ASAN_ENABLED {
 		return __asan_region_is_poisoned(raw_data(region), size_of(E) * len(region))
 	} else {
@@ -114,6 +228,15 @@ address_region_is_poisoned_slice :: proc "contextless" (region: []$T/$E) -> rawp
 	}
 }
 
+/*
+Checks if the memory region pointed to by the pointer is poisoned.
+
+If it is poisoned this procedure returns the address which would result
+in an asan error.
+
+When asan is not enabled this procedure returns `nil`.
+*/
+@(no_sanitize_address)
 address_region_is_poisoned_ptr :: proc "contextless" (ptr: ^$T) -> rawptr {
 	when ASAN_ENABLED {
 		return __asan_region_is_poisoned(ptr, size_of(T))
@@ -122,6 +245,15 @@ address_region_is_poisoned_ptr :: proc "contextless" (ptr: ^$T) -> rawptr {
 	}
 }
 
+/*
+Checks if the memory region covered by `[ptr, ptr+len)` is poisoned.
+
+If it is poisoned this procedure returns the address which would result
+in an asan error.
+
+When asan is not enabled this procedure returns `nil`.
+*/
+@(no_sanitize_address)
 address_region_is_poisoned_rawptr :: proc "contextless" (region: rawptr, len: int) -> rawptr {
 	when ASAN_ENABLED {
 		assert_contextless(len >= 0)
@@ -131,13 +263,41 @@ address_region_is_poisoned_rawptr :: proc "contextless" (region: rawptr, len: in
 	}
 }
 
+/*
+Checks if the memory region covered by `[ptr, ptr+len)` is poisoned.
+
+If it is poisoned this procedure returns the address which would result
+in an asan error.
+
+When asan is not enabled this procedure returns `nil`.
+*/
+@(no_sanitize_address)
+address_region_is_poisoned_rawptr_uint :: proc "contextless" (region: rawptr, len: uint) -> rawptr {
+	when ASAN_ENABLED {
+		return __asan_region_is_poisoned(region, len)
+	} else {
+		return nil
+	}
+}
+
+
 address_region_is_poisoned :: proc {
 	address_region_is_poisoned_slice,
 	address_region_is_poisoned_ptr,
 	address_region_is_poisoned_rawptr,
+	address_region_is_poisoned_rawptr_uint,
 }
 
-address_address_is_poisoned :: proc "contextless" (address: rawptr) -> bool {
+/*
+Checks if the address is poisoned.
+
+If it is poisoned this procedure returns `true`, otherwise it returns
+`false`.
+
+When asan is not enabled this procedure returns `false`.
+*/
+@(no_sanitize_address)
+address_is_poisoned :: proc "contextless" (address: rawptr) -> bool {
 	when ASAN_ENABLED {
 		return __asan_address_is_poisoned(address) != 0
 	} else {
@@ -145,12 +305,27 @@ address_address_is_poisoned :: proc "contextless" (address: rawptr) -> bool {
 	}
 }
 
+/*
+Describes the sanitizer state for an address.
+
+This procedure prints the description out to `stdout`.
+
+When asan is not enabled this procedure does nothing.
+*/
+@(no_sanitize_address)
 address_describe_address :: proc "contextless" (address: rawptr) {
 	when ASAN_ENABLED {
 		__asan_describe_address(address)
 	}
 }
 
+/*
+Returns `true` if an asan error has occured, otherwise it returns
+`false`.
+
+When asan is not enabled this procedure returns `false`.
+*/
+@(no_sanitize_address)
 address_report_present :: proc "contextless" () -> bool {
 	when ASAN_ENABLED {
 		return __asan_report_present() != 0
@@ -159,6 +334,14 @@ address_report_present :: proc "contextless" () -> bool {
 	}
 }
 
+/*
+Returns the program counter register value of an asan error.
+
+If no asan error has occurd `nil` is returned.
+
+When asan is not enabled this procedure returns `nil`.
+*/
+@(no_sanitize_address)
 address_get_report_pc :: proc "contextless" () -> rawptr {
 	when ASAN_ENABLED {
 		return __asan_get_report_pc()
@@ -167,6 +350,14 @@ address_get_report_pc :: proc "contextless" () -> rawptr {
 	}
 }
 
+/*
+Returns the base pointer register value of an asan error.
+
+If no asan error has occurd `nil` is returned.
+
+When asan is not enabled this procedure returns `nil`.
+*/
+@(no_sanitize_address)
 address_get_report_bp :: proc "contextless" () -> rawptr {
 	when ASAN_ENABLED {
 		return __asan_get_report_bp()
@@ -175,6 +366,14 @@ address_get_report_bp :: proc "contextless" () -> rawptr {
 	}
 }
 
+/*
+Returns the stack pointer register value of an asan error.
+
+If no asan error has occurd `nil` is returned.
+
+When asan is not enabled this procedure returns `nil`.
+*/
+@(no_sanitize_address)
 address_get_report_sp :: proc "contextless" () -> rawptr {
 	when ASAN_ENABLED {
 		return __asan_get_report_sp()
@@ -183,6 +382,14 @@ address_get_report_sp :: proc "contextless" () -> rawptr {
 	}
 }
 
+/*
+Returns the report buffer address of an asan error.
+
+If no asan error has occurd `nil` is returned.
+
+When asan is not enabled this procedure returns `nil`.
+*/
+@(no_sanitize_address)
 address_get_report_address :: proc "contextless" () -> rawptr {
 	when ASAN_ENABLED {
 		return __asan_get_report_address()
@@ -191,14 +398,33 @@ address_get_report_address :: proc "contextless" () -> rawptr {
 	}
 }
 
+/*
+Returns the address access type of an asan error.
+
+If no asan error has occurd `.none` is returned.
+
+When asan is not enabled this procedure returns `.none`.
+*/
+@(no_sanitize_address)
 address_get_report_access_type :: proc "contextless" () -> Address_Access_Type {
 	when ASAN_ENABLED {
+		if ! address_report_present() {
+			return .none
+		}
 		return __asan_get_report_access_type() == 0 ? .read : .write
 	} else {
 		return .none
 	}
 }
 
+/*
+Returns the access size of an asan error.
+
+If no asan error has occurd `0` is returned.
+
+When asan is not enabled this procedure returns `0`.
+*/
+@(no_sanitize_address)
 address_get_report_access_size :: proc "contextless" () -> uint {
 	when ASAN_ENABLED {
 		return __asan_get_report_access_size()
@@ -207,25 +433,52 @@ address_get_report_access_size :: proc "contextless" () -> uint {
 	}
 }
 
+/*
+Returns the bug description of an asan error.
+
+If no asan error has occurd an empty string is returned.
+
+When asan is not enabled this procedure returns an empty string.
+*/
+@(no_sanitize_address)
 address_get_report_description :: proc "contextless" () -> string {
 	when ASAN_ENABLED {
 		return string(__asan_get_report_description())
 	} else {
-		return "unknown"
+		return ""
 	}
 }
 
-address_locate_address :: proc "contextless" (addr: rawptr, data: []byte) -> (Address_Located_Address_String, []byte) {
+/*
+Returns asan information about the address provided, writing the category into `data`.
+
+The information provided include:
+* The category of the address, i.e. stack, global, heap, etc.
+* The name of the variable this address belongs to
+* The memory region of the address
+
+When asan is not enabled this procedure returns zero initialised values.
+*/
+@(no_sanitize_address)
+address_locate_address :: proc "contextless" (addr: rawptr, data: []byte) -> Address_Located_Address {
 	when ASAN_ENABLED {
 		out_addr: rawptr
 		out_size: uint
 		str := __asan_locate_address(addr, raw_data(data), len(data), &out_addr, &out_size)
-		return { string(str), string(cstring(raw_data(data))) }, (cast([^]byte)out_addr)[:out_size]
+		return { string(str), string(cstring(raw_data(data))), (cast([^]byte)out_addr)[:out_size] }, 
 	} else {
-		return { "", "" }, {}
+		return { "", "", {} }
 	}
 }
 
+/*
+Returns the allocation stack trace and thread id for a heap address.
+
+The stack trace is filled into the `data` slice.
+
+When asan is not enabled this procedure returns a zero initialised value.
+*/
+@(no_sanitize_address)
 address_get_alloc_stack_trace :: proc "contextless" (addr: rawptr, data: []rawptr) -> ([]rawptr, int) {
 	when ASAN_ENABLED {
 		out_thread: i32
@@ -236,6 +489,14 @@ address_get_alloc_stack_trace :: proc "contextless" (addr: rawptr, data: []rawpt
 	}
 }
 
+/*
+Returns the free stack trace and thread id for a heap address.
+
+The stack trace is filled into the `data` slice.
+
+When asan is not enabled this procedure returns zero initialised values.
+*/
+@(no_sanitize_address)
 address_get_free_stack_trace :: proc "contextless" (addr: rawptr, data: []rawptr) -> ([]rawptr, int) {
 	when ASAN_ENABLED {
 		out_thread: i32
@@ -246,6 +507,12 @@ address_get_free_stack_trace :: proc "contextless" (addr: rawptr, data: []rawptr
 	}
 }
 
+/*
+Returns the current asan shadow memory mapping.
+
+When asan is not enabled this procedure returns a zero initialised value.
+*/
+@(no_sanitize_address)
 address_get_shadow_mapping :: proc "contextless" () -> Address_Shadow_Mapping {
 	when ASAN_ENABLED {
 		result: Address_Shadow_Mapping
@@ -256,12 +523,26 @@ address_get_shadow_mapping :: proc "contextless" () -> Address_Shadow_Mapping {
 	}
 }
 
+/*
+Prints asan statistics to `stderr`
+
+When asan is not enabled this procedure does nothing.
+*/
+@(no_sanitize_address)
 address_print_accumulated_stats :: proc "contextless" () {
 	when ASAN_ENABLED {
 		__asan_print_accumulated_stats()
 	}
 }
 
+/*
+Returns the address of the current fake stack used by asan.
+
+This pointer can be then used for `address_is_in_fake_stack`.
+
+When asan is not enabled this procedure returns `nil`.
+*/
+@(no_sanitize_address)
 address_get_current_fake_stack :: proc "contextless" () -> rawptr {
 	when ASAN_ENABLED {
 		return __asan_get_current_fake_stack()
@@ -270,6 +551,12 @@ address_get_current_fake_stack :: proc "contextless" () -> rawptr {
 	}
 }
 
+/*
+Returns if an address belongs to a given fake stack and if so the region of the fake frame.
+
+When asan is not enabled this procedure returns zero initialised values.
+*/
+@(no_sanitize_address)
 address_is_in_fake_stack :: proc "contextless" (fake_stack: rawptr, addr: rawptr) -> ([]byte, bool) {
 	when ASAN_ENABLED {
 		begin: rawptr
@@ -283,12 +570,27 @@ address_is_in_fake_stack :: proc "contextless" (fake_stack: rawptr, addr: rawptr
 	}
 }
 
+/*
+Performs shadow memory cleanup for the current thread before a procedure with no return is called
+i.e. a procedure such as `panic` and `os.exit`.
+
+When asan is not enabled this procedure does nothing.
+*/
+@(no_sanitize_address)
 address_handle_no_return :: proc "contextless" () {
 	when ASAN_ENABLED {
 		__asan_handle_no_return()
 	}
 }
 
+/*
+Updates the allocation stack trace for the given address.
+
+Returns `true` if successful, otherwise it returns `false`.
+
+When asan is not enabled this procedure returns `false`.
+*/
+@(no_sanitize_address)
 address_update_allocation_context :: proc "contextless" (addr: rawptr) -> bool {
 	when ASAN_ENABLED {
 		return __asan_update_allocation_context(addr) != 0

base/sanitizer/doc.odin

@@ -0,0 +1,38 @@
+/*
+The `sanitizer` package implements various procedures for interacting with sanitizers
+from user code.
+
+An odin project can be linked with various sanitizers to help identify various different
+bugs. These sanitizers are:
+
+## Address
+
+Enabled with `-sanitize:address` when building an odin project.
+
+The address sanitizer (asan) is a runtime memory error detector used to help find common memory
+related bugs. Typically asan interacts with libc but Odin code can be marked up to interact
+with the asan runtime to extend the memory error detection outside of libc using this package.
+For more information about asan see: https://clang.llvm.org/docs/AddressSanitizer.html
+
+Procedures can be made exempt from asan when marked up with @(no_sanitize_address)
+
+## Memory
+
+Enabled with `-sanitize:memory` when building an odin project.
+
+The memory sanitizer is another runtime memory error detector with the sole purpose to catch the
+use of uninitialized memory. This is not a very common bug in Odin as by default everything is
+set to zero when initialised (ZII).
+For more information about the memory sanitizer see: https://clang.llvm.org/docs/MemorySanitizer.html
+
+## Thread
+
+Enabled with `-sanitize:thread` when building an odin project.
+
+The thread sanitizer is a runtime data race detector. It can be used to detect if multiple threads
+are concurrently writing and accessing a memory location without proper syncronisation.
+For more information about the thread sanitizer see: https://clang.llvm.org/docs/ThreadSanitizer.html
+
+*/
+package sanitizer
+

build.bat

@@ -19,16 +19,27 @@ if "%VSCMD_ARG_TGT_ARCH%" neq "x64" (
 	)
 )
 
+where /Q git.exe || goto skip_git_hash
+if not exist .git\ goto skip_git_hash
+for /f "tokens=1,2" %%i IN ('git show "--pretty=%%cd %%h" "--date=format:%%Y-%%m-%%d" --no-patch --no-notes HEAD') do (
+	set CURR_DATE_TIME=%%i
+	set GIT_SHA=%%j
+)
+if %ERRORLEVEL% equ 0 (
+	goto have_git_hash_and_date
+)
+:skip_git_hash
 pushd misc
 cl /nologo get-date.c
-popd
+for /f %%i in ('get-date') do (
-
-for /f %%i in ('misc\get-date') do (
 	set CURR_DATE_TIME=%%i
+	rem Don't set GIT_SHA
 )
+popd
+:have_git_hash_and_date
 set curr_year=%CURR_DATE_TIME:~0,4%
-set curr_month=%CURR_DATE_TIME:~4,2%
+set curr_month=%CURR_DATE_TIME:~5,2%
-set curr_day=%CURR_DATE_TIME:~6,2%
+set curr_day=%CURR_DATE_TIME:~8,2%
 
 :: Make sure this is a decent name and not generic
 set exe_name=odin.exe
@@ -61,31 +72,14 @@ if %release_mode% equ 0 (
 set V4=0
 set odin_version_full="%V1%.%V2%.%V3%.%V4%"
 set odin_version_raw="dev-%V1%-%V2%"
-
 set compiler_flags= -nologo -Oi -TP -fp:precise -Gm- -MP -FC -EHsc- -GR- -GF
 rem Parse source code as utf-8 even on shift-jis and other codepages
 rem See https://learn.microsoft.com/en-us/cpp/build/reference/utf-8-set-source-and-executable-character-sets-to-utf-8?view=msvc-170
 set compiler_flags= %compiler_flags% /utf-8
-set compiler_defines= -DODIN_VERSION_RAW=\"%odin_version_raw%\"
+set compiler_defines= -DODIN_VERSION_RAW=\"%odin_version_raw%\" -DGIT_SHA=\"%GIT_SHA%\"
 
 rem fileversion is defined as {Major,Minor,Build,Private: u16} so a bit limited
-set rc_flags=-nologo ^
+set rc_flags="-DGIT_SHA=%GIT_SHA% -DVP=dev-%V1%-%V2%:%GIT_SHA% nologo -DV1=%V1% -DV2=%V2% -DV3=%V3% -DV4=%V4% -DVF=%odin_version_full% -DNIGHTLY=%nightly%"
--DV1=%V1% -DV2=%V2% -DV3=%V3% -DV4=%V4% ^
--DVF=%odin_version_full% -DNIGHTLY=%nightly%
-
-where /Q git.exe || goto skip_git_hash
-if not exist .git\ goto skip_git_hash
-for /f "tokens=1,2" %%i IN ('git show "--pretty=%%cd %%h" "--date=format:%%Y-%%m" --no-patch --no-notes HEAD') do (
-	set odin_version_raw=dev-%%i
-	set GIT_SHA=%%j
-)
-if %ERRORLEVEL% equ 0 (
-	set compiler_defines=%compiler_defines% -DGIT_SHA=\"%GIT_SHA%\"
-	set rc_flags=%rc_flags% -DGIT_SHA=%GIT_SHA% -DVP=%odin_version_raw%:%GIT_SHA%
-) else (
-	set rc_flags=%rc_flags% -DVP=%odin_version_raw%
-)
-:skip_git_hash
 
 if %nightly% equ 1 set compiler_defines=%compiler_defines% -DNIGHTLY
 

build_odin.sh

@@ -6,7 +6,6 @@ set -eu
 : ${LDFLAGS=}
 : ${LLVM_CONFIG=}
 
-CPPFLAGS="$CPPFLAGS -DODIN_VERSION_RAW=\"dev-$(date +"%Y-%m")\""
 CXXFLAGS="$CXXFLAGS -std=c++14"
 DISABLED_WARNINGS="-Wno-switch -Wno-macro-redefined -Wno-unused-value"
 LDFLAGS="$LDFLAGS -pthread -lm"
@@ -15,8 +14,12 @@ OS_NAME="$(uname -s)"
 
 if [ -d ".git" ] && [ -n "$(command -v git)" ]; then
 	GIT_SHA=$(git show --pretty='%h' --no-patch --no-notes HEAD)
+	GIT_DATE=$(git show "--pretty=%cd" "--date=format:%Y-%m" --no-patch --no-notes HEAD)
 	CPPFLAGS="$CPPFLAGS -DGIT_SHA=\"$GIT_SHA\""
+else
+	GIT_DATE=$(date +"%Y-%m")
 fi
+CPPFLAGS="$CPPFLAGS -DODIN_VERSION_RAW=\"dev-$GIT_DATE\""
 
 error() {
 	printf "ERROR: %s\n" "$1"

core/bufio/reader.odin

@@ -257,7 +257,7 @@ reader_read_rune :: proc(b: ^Reader) -> (r: rune, size: int, err: io.Error) {
 	for b.r+utf8.UTF_MAX > b.w &&
 	    !utf8.full_rune(b.buf[b.r:b.w]) &&
 	    b.err == nil &&
-	    b.w-b.w < len(b.buf) {
+	    b.w-b.r < len(b.buf) {
 		_reader_read_new_chunk(b) or_return
 	}
 

core/bytes/bytes.odin

@@ -350,7 +350,7 @@ index_byte :: proc "contextless" (s: []byte, c: byte) -> (index: int) #no_bounds
 	}
 
 	c_vec: simd.u8x16 = c
-	when !simd.IS_EMULATED {
+	when simd.HAS_HARDWARE_SIMD {
 		// Note: While this is something that could also logically take
 		// advantage of AVX512, the various downclocking and power
 		// consumption related woes make premature to have a dedicated
@@ -485,7 +485,7 @@ last_index_byte :: proc "contextless" (s: []byte, c: byte) -> int #no_bounds_che
 	}
 
 	c_vec: simd.u8x16 = c
-	when !simd.IS_EMULATED {
+	when simd.HAS_HARDWARE_SIMD {
 		// Note: While this is something that could also logically take
 		// advantage of AVX512, the various downclocking and power
 		// consumption related woes make premature to have a dedicated

core/compress/common.odin

@@ -139,9 +139,6 @@ Context_Memory_Input :: struct #packed {
 }
 when size_of(rawptr) == 8 {
 	#assert(size_of(Context_Memory_Input) == 64)
-} else {
-	// e.g. `-target:windows_i386`
-	#assert(size_of(Context_Memory_Input) == 52)
 }
 
 Context_Stream_Input :: struct #packed {

core/container/lru/lru_cache.odin

@@ -129,7 +129,7 @@ remove :: proc(c: ^$C/Cache($Key, $Value), key: Key) -> bool {
 		return false
 	}
 	_remove_node(c, e)
-	free(node, c.node_allocator)
+	free(e, c.node_allocator)
 	c.count -= 1
 	return true
 }

core/container/priority_queue/priority_queue.odin

@@ -133,12 +133,10 @@ pop_safe :: proc(pq: ^$Q/Priority_Queue($T), loc := #caller_location) -> (value:
 remove :: proc(pq: ^$Q/Priority_Queue($T), i: int) -> (value: T, ok: bool) {
 	n := builtin.len(pq.queue)
 	if 0 <= i && i < n {
-		if n != i {
+		pq.swap(pq.queue[:], i, n-1)
-			pq.swap(pq.queue[:], i, n)
+		_shift_down(pq, i, n-1)
-			_shift_down(pq, i, n)
+		_shift_up(pq, i)
-			_shift_up(pq, i)
+		value, ok = builtin.pop(&pq.queue), true
-		}
-		value, ok = builtin.pop_safe(&pq.queue)
 	}
 	return
 }

core/crypto/_aes/hw_intel/api.odin

@@ -6,7 +6,7 @@ import "core:sys/info"
 // is_supported returns true iff hardware accelerated AES
 // is supported.
 is_supported :: proc "contextless" () -> bool {
-	features, ok := info.cpu_features.?
+	features, ok := info.cpu.features.?
 	if !ok {
 		return false
 	}

core/crypto/_chacha20/simd128/chacha20_simd128.odin

@@ -39,7 +39,7 @@ when ODIN_ARCH == .arm64 || ODIN_ARCH == .arm32 {
 
 // Some targets lack runtime feature detection, and will flat out refuse
 // to load binaries that have unknown instructions.  This is distinct from
-// `simd.IS_EMULATED` as actually good designs support runtime feature
+// `simd.HAS_HARDWARE_SIMD` as actually good designs support runtime feature
 // detection and that constant establishes a baseline.
 //
 // See:
@@ -227,7 +227,7 @@ is_performant :: proc "contextless" () -> bool {
 			req_features :: info.CPU_Features{.V}
 		}
 
-		features, ok := info.cpu_features.?
+		features, ok := info.cpu.features.?
 		if !ok {
 			return false
 		}

core/crypto/_chacha20/simd256/chacha20_simd256.odin

@@ -41,7 +41,7 @@ _VEC_TWO: simd.u64x4 : {2, 0, 2, 0}
 is_performant :: proc "contextless" () -> bool {
 	req_features :: info.CPU_Features{.avx, .avx2}
 
-	features, ok := info.cpu_features.?
+	features, ok := info.cpu.features.?
 	if !ok {
 		return false
 	}

core/crypto/sha2/sha2_impl_hw_intel.odin

@@ -52,7 +52,7 @@ K_15 :: simd.u64x2{0xa4506ceb90befffa, 0xc67178f2bef9a3f7}
 // is_hardware_accelerated_256 returns true iff hardware accelerated
 // SHA-224/SHA-256 is supported.
 is_hardware_accelerated_256 :: proc "contextless" () -> bool {
-	features, ok := info.cpu_features.?
+	features, ok := info.cpu.features.?
 	if !ok {
 		return false
 	}

core/encoding/cbor/cbor.odin

@@ -385,17 +385,17 @@ to_diagnostic_format_writer :: proc(w: io.Writer, val: Value, padding := 0) -> i
 	// which we want for the diagnostic format.
 	case f16:
 		buf: [64]byte
-		str := strconv.append_float(buf[:], f64(v), 'f', 2*size_of(f16), 8*size_of(f16))
+		str := strconv.write_float(buf[:], f64(v), 'f', 2*size_of(f16), 8*size_of(f16))
 		if str[0] == '+' && str != "+Inf" { str = str[1:] }
 		io.write_string(w, str) or_return
 	case f32:
 		buf: [128]byte
-		str := strconv.append_float(buf[:], f64(v), 'f', 2*size_of(f32), 8*size_of(f32))
+		str := strconv.write_float(buf[:], f64(v), 'f', 2*size_of(f32), 8*size_of(f32))
 		if str[0] == '+' && str != "+Inf" { str = str[1:] }
 		io.write_string(w, str) or_return
 	case f64:
 		buf: [256]byte
-		str := strconv.append_float(buf[:], f64(v), 'f', 2*size_of(f64), 8*size_of(f64))
+		str := strconv.write_float(buf[:], f64(v), 'f', 2*size_of(f64), 8*size_of(f64))
 		if str[0] == '+' && str != "+Inf" { str = str[1:] }
 		io.write_string(w, str) or_return
 

core/encoding/cbor/marshal.odin

@@ -612,6 +612,42 @@ _marshal_into_encoder :: proc(e: Encoder, v: any, ti: ^runtime.Type_Info) -> (er
 		case:
 			panic("unknown bit_size size")
 		}
+	case runtime.Type_Info_Matrix:
+		count := info.column_count * info.elem_stride
+		err_conv(_encode_u64(e, u64(count), .Array)) or_return
+
+		if impl, ok := _tag_implementations_type[info.elem.id]; ok {
+			for i in 0..<count {
+				data := uintptr(v.data) + uintptr(i*info.elem_size)
+				impl->marshal(e, any{rawptr(data), info.elem.id}) or_return
+			}
+			return
+		}
+
+		elem_ti := runtime.type_info_core(type_info_of(info.elem.id))
+		for i in 0..<count {
+			data := uintptr(v.data) + uintptr(i*info.elem_size)
+			_marshal_into_encoder(e, any{rawptr(data), info.elem.id}, elem_ti) or_return
+		}
+		return
+
+	case runtime.Type_Info_Simd_Vector:
+		err_conv(_encode_u64(e, u64(info.count), .Array)) or_return
+
+		if impl, ok := _tag_implementations_type[info.elem.id]; ok {
+			for i in 0..<info.count {
+				data := uintptr(v.data) + uintptr(i*info.elem_size)
+				impl->marshal(e, any{rawptr(data), info.elem.id}) or_return
+			}
+			return
+		}
+
+		elem_ti := runtime.type_info_core(type_info_of(info.elem.id))
+		for i in 0..<info.count {
+			data := uintptr(v.data) + uintptr(i*info.elem_size)
+			_marshal_into_encoder(e, any{rawptr(data), info.elem.id}, elem_ti) or_return
+		}
+		return
 	}
 
 	return _unsupported(v.id, nil)

core/encoding/cbor/unmarshal.odin

@@ -29,6 +29,7 @@ an input.
 unmarshal :: proc {
 	unmarshal_from_reader,
 	unmarshal_from_string,
+	unmarshal_from_bytes,
 }
 
 unmarshal_from_reader :: proc(r: io.Reader, ptr: ^$T, flags := Decoder_Flags{}, allocator := context.allocator, temp_allocator := context.temp_allocator, loc := #caller_location) -> (err: Unmarshal_Error) {
@@ -51,6 +52,11 @@ unmarshal_from_string :: proc(s: string, ptr: ^$T, flags := Decoder_Flags{}, all
 	return
 }
 
+// Unmarshals from a slice of bytes, see docs on the proc group `Unmarshal` for more info.
+unmarshal_from_bytes :: proc(bytes: []byte, ptr: ^$T, flags := Decoder_Flags{}, allocator := context.allocator, temp_allocator := context.temp_allocator, loc := #caller_location) -> (err: Unmarshal_Error) {
+	return unmarshal_from_string(string(bytes), ptr, flags, allocator, temp_allocator, loc)
+}
+
 unmarshal_from_decoder :: proc(d: Decoder, ptr: ^$T, allocator := context.allocator, temp_allocator := context.temp_allocator, loc := #caller_location) -> (err: Unmarshal_Error) {
 	d := d
 
@@ -487,7 +493,7 @@ _unmarshal_array :: proc(d: Decoder, v: any, ti: ^reflect.Type_Info, hdr: Header
 		data := mem.alloc_bytes_non_zeroed(t.elem.size * scap, t.elem.align, allocator=allocator, loc=loc) or_return
 		defer if err != nil { mem.free_bytes(data, allocator=allocator, loc=loc) }
 
-		da := mem.Raw_Dynamic_Array{raw_data(data), 0, length, context.allocator }
+		da := mem.Raw_Dynamic_Array{raw_data(data), 0, scap, context.allocator }
 
 		assign_array(d, &da, t.elem, length) or_return
 
@@ -585,6 +591,31 @@ _unmarshal_array :: proc(d: Decoder, v: any, ti: ^reflect.Type_Info, hdr: Header
 		if out_of_space { return _unsupported(v, hdr) }
 		return
 
+	case reflect.Type_Info_Matrix:
+		count := t.column_count * t.elem_stride
+		length, _ := err_conv(_decode_len_container(d, add)) or_return
+		if length > count {
+			return _unsupported(v, hdr)
+		}
+
+		da := mem.Raw_Dynamic_Array{rawptr(v.data), 0, length, allocator }
+
+		out_of_space := assign_array(d, &da, t.elem, length, growable=false) or_return
+		if out_of_space { return _unsupported(v, hdr) }
+		return
+
+	case reflect.Type_Info_Simd_Vector:
+		length, _ := err_conv(_decode_len_container(d, add)) or_return
+		if length > t.count {
+			return _unsupported(v, hdr)
+		}
+
+		da := mem.Raw_Dynamic_Array{rawptr(v.data), 0, length, allocator }
+
+		out_of_space := assign_array(d, &da, t.elem, length, growable=false) or_return
+		if out_of_space { return _unsupported(v, hdr) }
+		return
+
 	case: return _unsupported(v, hdr)
 	}
 }

core/encoding/csv/doc.odin

@@ -63,8 +63,6 @@ Example:
 	read_csv_from_string :: proc(filename: string) {
 		r: csv.Reader
 		r.trim_leading_space  = true
-		r.reuse_record        = true // Without it you have to delete(record)
-		r.reuse_record_buffer = true // Without it you have to each of the fields within it
 		defer csv.reader_destroy(&r)
 
 		csv_data, ok := os.read_entire_file(filename)

core/encoding/csv/reader.odin

@@ -130,7 +130,7 @@ reader_destroy :: proc(r: ^Reader) {
 	for record, row_idx in csv.iterator_next(&r) { ... }
 
 	TIP: If you process the results within the loop and don't need to own the results,
-	you can set the Reader's `reuse_record` and `reuse_record_reuse_record_buffer` to true;
+	you can set the Reader's `reuse_record` and `reuse_record_buffer` to true;
 	you won't need to delete the record or its fields.
 */
 iterator_next :: proc(r: ^Reader) -> (record: []string, idx: int, err: Error, more: bool) {

core/encoding/json/marshal.odin

@@ -108,13 +108,13 @@ marshal_to_writer :: proc(w: io.Writer, v: any, opt: ^Marshal_Options) -> (err:
 		if opt.write_uint_as_hex && (opt.spec == .JSON5 || opt.spec == .MJSON) {
 			switch i in a {
 			case u8, u16, u32, u64, u128:
-				s = strconv.append_bits_128(buf[:], u, 16, info.signed, 8*ti.size, "0123456789abcdef", { .Prefix })
+				s = strconv.write_bits_128(buf[:], u, 16, info.signed, 8*ti.size, "0123456789abcdef", { .Prefix })
 
 			case:
-				s = strconv.append_bits_128(buf[:], u, 10, info.signed, 8*ti.size, "0123456789", nil)
+				s = strconv.write_bits_128(buf[:], u, 10, info.signed, 8*ti.size, "0123456789", nil)
 			}
 		} else {
-			s = strconv.append_bits_128(buf[:], u, 10, info.signed, 8*ti.size, "0123456789", nil)
+			s = strconv.write_bits_128(buf[:], u, 10, info.signed, 8*ti.size, "0123456789", nil)
 		}
 
 		io.write_string(w, s) or_return
@@ -286,7 +286,7 @@ marshal_to_writer :: proc(w: io.Writer, v: any, opt: ^Marshal_Options) -> (err:
 						case runtime.Type_Info_Integer:
 							buf: [40]byte
 							u := cast_any_int_to_u128(ka)
-							name = strconv.append_bits_128(buf[:], u, 10, info.signed, 8*kti.size, "0123456789", nil)
+							name = strconv.write_bits_128(buf[:], u, 10, info.signed, 8*kti.size, "0123456789", nil)
 							
 							opt_write_key(w, opt, name) or_return
 						case: return .Unsupported_Type

core/encoding/json/tokenizer.odin

@@ -101,7 +101,7 @@ get_token :: proc(t: ^Tokenizer) -> (token: Token, err: Error) {
 		}
 	}
 
-	scan_espace :: proc(t: ^Tokenizer) -> bool {
+	scan_escape :: proc(t: ^Tokenizer) -> bool {
 		switch t.r {
 		case '"', '\'', '\\', '/', 'b', 'n', 'r', 't', 'f':
 			next_rune(t)
@@ -310,7 +310,7 @@ get_token :: proc(t: ^Tokenizer) -> (token: Token, err: Error) {
 				break
 			}
 			if r == '\\' {
-				scan_espace(t)
+				scan_escape(t)
 			}
 		}
 

core/encoding/json/unmarshal.odin

@@ -406,6 +406,9 @@ unmarshal_expect_token :: proc(p: ^Parser, kind: Token_Kind, loc := #caller_loca
 	return prev
 }
 
+// Struct tags can include not only the name of the JSON key, but also a tag such as `omitempty`.
+// Example: `json:"key_name,omitempty"`
+// This returns the first field as `json_name`, and the rest are returned as `extra`.
 @(private)
 json_name_from_tag_value :: proc(value: string) -> (json_name, extra: string) {
 	json_name = value
@@ -442,12 +445,6 @@ unmarshal_object :: proc(p: ^Parser, v: any, end_token: Token_Kind) -> (err: Unm
 			
 			unmarshal_expect_token(p, .Colon)						
 
-			field_test :: #force_inline proc "contextless" (field_used: [^]byte, offset: uintptr) -> bool {
-				prev_set := field_used[offset/8] & byte(offset&7) != 0
-				field_used[offset/8] |= byte(offset&7)
-				return prev_set
-			}
-
 			field_used_bytes := (reflect.size_of_typeid(ti.id)+7)/8
 			field_used := intrinsics.alloca(field_used_bytes + 1, 1) // + 1 to not overflow on size_of 0 types.
 			intrinsics.mem_zero(field_used, field_used_bytes)
@@ -465,7 +462,9 @@ unmarshal_object :: proc(p: ^Parser, v: any, end_token: Token_Kind) -> (err: Unm
 			
 			if use_field_idx < 0 {
 				for field, field_idx in fields {
-					if key == field.name {
+					tag_value := reflect.struct_tag_get(field.tag, "json")
+					json_name, _ := json_name_from_tag_value(tag_value)
+					if json_name == "" && key == field.name {
 						use_field_idx = field_idx
 						break
 					}
@@ -486,7 +485,9 @@ unmarshal_object :: proc(p: ^Parser, v: any, end_token: Token_Kind) -> (err: Unm
 						}
 					}
 
-					if field.name == key || (field.tag != "" && reflect.struct_tag_get(field.tag, "json") == key) {
+					tag_value := reflect.struct_tag_get(field.tag, "json")
+					json_name, _ := json_name_from_tag_value(tag_value)
+					if (json_name == "" && field.name == key) || json_name == key {
 						offset = field.offset
 						type = field.type
 						found = true
@@ -508,6 +509,11 @@ unmarshal_object :: proc(p: ^Parser, v: any, end_token: Token_Kind) -> (err: Unm
 			}
 
 			if field_found {
+				field_test :: #force_inline proc "contextless" (field_used: [^]byte, offset: uintptr) -> bool {
+					prev_set := field_used[offset/8] & byte(offset&7) != 0
+					field_used[offset/8] |= byte(offset&7)
+					return prev_set
+				}
 				if field_test(field_used, offset) {
 					return .Multiple_Use_Field
 				}

core/fmt/fmt.odin

@@ -1122,7 +1122,7 @@ _fmt_int :: proc(fi: ^Info, u: u64, base: int, is_signed: bool, bit_size: int, d
 	flags: strconv.Int_Flags
 	if fi.hash && !fi.zero && start == 0 { flags += {.Prefix} }
 	if fi.plus                           { flags += {.Plus}   }
-	s := strconv.append_bits(buf[start:], u, base, is_signed, bit_size, digits, flags)
+	s := strconv.write_bits(buf[start:], u, base, is_signed, bit_size, digits, flags)
 	prev_zero := fi.zero
 	defer fi.zero = prev_zero
 	fi.zero = false
@@ -1207,7 +1207,7 @@ _fmt_int_128 :: proc(fi: ^Info, u: u128, base: int, is_signed: bool, bit_size: i
 	flags: strconv.Int_Flags
 	if fi.hash && !fi.zero && start == 0 { flags += {.Prefix} }
 	if fi.plus                           { flags += {.Plus}   }
-	s := strconv.append_bits_128(buf[start:], u, base, is_signed, bit_size, digits, flags)
+	s := strconv.write_bits_128(buf[start:], u, base, is_signed, bit_size, digits, flags)
 
 	if fi.hash && fi.zero && fi.indent == 0 {
 		c: byte = 0
@@ -1272,7 +1272,7 @@ _fmt_memory :: proc(fi: ^Info, u: u64, is_signed: bool, bit_size: int, units: st
 	}
 
 	buf: [256]byte
-	str := strconv.append_float(buf[:], amt, 'f', prec, 64)
+	str := strconv.write_float(buf[:], amt, 'f', prec, 64)
 
 	// Add the unit at the end.
 	copy(buf[len(str):], units[off:off+unit_len])
@@ -1424,7 +1424,7 @@ _fmt_float_as :: proc(fi: ^Info, v: f64, bit_size: int, verb: rune, float_fmt: b
 	buf: [386]byte
 
 	// Can return "NaN", "+Inf", "-Inf", "+<value>", "-<value>".
-	str := strconv.append_float(buf[:], v, float_fmt, prec, bit_size)
+	str := strconv.write_float(buf[:], v, float_fmt, prec, bit_size)
 
 	if !fi.plus {
 		// Strip sign from "+<value>" but not "+Inf".

core/hash/crc32.odin

@@ -318,84 +318,3 @@ crc32_table := [8][256]u32{
 		0x2c8e0fff, 0xe0240f61, 0x6eab0882, 0xa201081c, 0xa8c40105, 0x646e019b, 0xeae10678, 0x264b06e6,
 	},
 }
-
-
-
-/*
-@(optimization_mode="speed")
-crc32 :: proc "contextless" (data: []byte, seed := u32(0)) -> u32 {
-	result := ~u32(seed);
-	 #no_bounds_check for b in data {
-		result = result>>8 ~ _crc32_table[(result ~ u32(b)) & 0xff];
-	}
-	return ~result;
-}
-
-
-@private _crc32_table := [256]u32{
-	0x00000000, 0x77073096, 0xee0e612c, 0x990951ba,
-	0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3,
-	0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
-	0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91,
-	0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
-	0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
-	0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec,
-	0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5,
-	0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
-	0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
-	0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940,
-	0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
-	0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116,
-	0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f,
-	0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
-	0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d,
-	0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a,
-	0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
-	0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818,
-	0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
-	0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
-	0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457,
-	0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c,
-	0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
-	0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
-	0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb,
-	0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
-	0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9,
-	0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086,
-	0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
-	0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4,
-	0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad,
-	0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
-	0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683,
-	0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
-	0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
-	0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe,
-	0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7,
-	0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
-	0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
-	0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252,
-	0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
-	0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60,
-	0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79,
-	0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
-	0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f,
-	0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04,
-	0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
-	0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a,
-	0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
-	0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
-	0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21,
-	0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e,
-	0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
-	0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
-	0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45,
-	0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
-	0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db,
-	0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0,
-	0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
-	0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6,
-	0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf,
-	0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
-	0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d,
-};
-*/

core/image/png/png.odin

@@ -1212,7 +1212,6 @@ Filter_Params :: struct #packed {
 
 depth_scale_table :: []u8{0, 0xff, 0x55, 0, 0x11, 0,0,0, 0x01}
 
-// @(optimization_mode="speed")
 defilter_8 :: proc(params: ^Filter_Params) -> (ok: bool) {
 
 	using params
@@ -1273,7 +1272,6 @@ defilter_8 :: proc(params: ^Filter_Params) -> (ok: bool) {
 	return
 }
 
-// @(optimization_mode="speed")
 defilter_less_than_8 :: proc(params: ^Filter_Params) -> bool #no_bounds_check {
 
 	using params
@@ -1436,7 +1434,6 @@ defilter_less_than_8 :: proc(params: ^Filter_Params) -> bool #no_bounds_check {
 	return true
 }
 
-// @(optimization_mode="speed")
 defilter_16 :: proc(params: ^Filter_Params) -> bool {
 	using params
 

core/io/util.odin

@@ -22,12 +22,12 @@ write_ptr_at :: proc(w: Writer_At, p: rawptr, byte_size: int, offset: i64, n_wri
 
 write_u64 :: proc(w: Writer, i: u64, base: int = 10, n_written: ^int = nil) -> (n: int, err: Error) {
 	buf: [32]byte
-	s := strconv.append_bits(buf[:], i, base, false, 64, strconv.digits, nil)
+	s := strconv.write_bits(buf[:], i, base, false, 64, strconv.digits, nil)
 	return write_string(w, s, n_written)
 }
 write_i64 :: proc(w: Writer, i: i64, base: int = 10, n_written: ^int = nil) -> (n: int, err: Error) {
 	buf: [32]byte
-	s := strconv.append_bits(buf[:], u64(i), base, true, 64, strconv.digits, nil)
+	s := strconv.write_bits(buf[:], u64(i), base, true, 64, strconv.digits, nil)
 	return write_string(w, s, n_written)
 }
 
@@ -40,18 +40,18 @@ write_int :: proc(w: Writer, i: int, base: int = 10, n_written: ^int = nil) -> (
 
 write_u128 :: proc(w: Writer, i: u128, base: int = 10, n_written: ^int = nil) -> (n: int, err: Error) {
 	buf: [39]byte
-	s := strconv.append_bits_128(buf[:], i, base, false, 128, strconv.digits, nil)
+	s := strconv.write_bits_128(buf[:], i, base, false, 128, strconv.digits, nil)
 	return write_string(w, s, n_written)
 }
 write_i128 :: proc(w: Writer, i: i128, base: int = 10, n_written: ^int = nil) -> (n: int, err: Error) {
 	buf: [40]byte
-	s := strconv.append_bits_128(buf[:], u128(i), base, true, 128, strconv.digits, nil)
+	s := strconv.write_bits_128(buf[:], u128(i), base, true, 128, strconv.digits, nil)
 	return write_string(w, s, n_written)
 }
 write_f16 :: proc(w: Writer, val: f16, n_written: ^int = nil) -> (n: int, err: Error) {
 	buf: [386]byte
 
-	str := strconv.append_float(buf[1:], f64(val), 'f', 2*size_of(val), 8*size_of(val))
+	str := strconv.write_float(buf[1:], f64(val), 'f', 2*size_of(val), 8*size_of(val))
 	s := buf[:len(str)+1]
 	if s[1] == '+' || s[1] == '-' {
 		s = s[1:]
@@ -67,7 +67,7 @@ write_f16 :: proc(w: Writer, val: f16, n_written: ^int = nil) -> (n: int, err: E
 write_f32 :: proc(w: Writer, val: f32, n_written: ^int = nil) -> (n: int, err: Error) {
 	buf: [386]byte
 
-	str := strconv.append_float(buf[1:], f64(val), 'f', 2*size_of(val), 8*size_of(val))
+	str := strconv.write_float(buf[1:], f64(val), 'f', 2*size_of(val), 8*size_of(val))
 	s := buf[:len(str)+1]
 	if s[1] == '+' || s[1] == '-' {
 		s = s[1:]
@@ -83,7 +83,7 @@ write_f32 :: proc(w: Writer, val: f32, n_written: ^int = nil) -> (n: int, err: E
 write_f64 :: proc(w: Writer, val: f64, n_written: ^int = nil) -> (n: int, err: Error) {
 	buf: [386]byte
 
-	str := strconv.append_float(buf[1:], val, 'f', 2*size_of(val), 8*size_of(val))
+	str := strconv.write_float(buf[1:], val, 'f', 2*size_of(val), 8*size_of(val))
 	s := buf[:len(str)+1]
 	if s[1] == '+' || s[1] == '-' {
 		s = s[1:]
@@ -130,7 +130,7 @@ write_encoded_rune :: proc(w: Writer, r: rune, write_quote := true, n_written: ^
 			write_string(w, `\x`, &n) or_return
 			
 			buf: [2]byte
-			s := strconv.append_bits(buf[:], u64(r), 16, true, 64, strconv.digits, nil)
+			s := strconv.write_bits(buf[:], u64(r), 16, true, 64, strconv.digits, nil)
 			switch len(s) {
 			case 0: 
 				write_string(w, "00", &n) or_return

core/log/file_console_logger.odin

@@ -2,10 +2,12 @@
 #+build !orca
 package log
 
-import "core:encoding/ansi"
+import "base:runtime"
 import "core:fmt"
 import "core:strings"
 import "core:os"
+import "core:terminal"
+import "core:terminal/ansi"
 import "core:time"
 
 Level_Headers := [?]string{
@@ -37,11 +39,36 @@ File_Console_Logger_Data :: struct {
 	ident: string,
 }
 
+@(private) global_subtract_stdout_options: Options
+@(private) global_subtract_stderr_options: Options
+
+@(init, private)
+init_standard_stream_status :: proc() {
+	// NOTE(Feoramund): While it is technically possible for these streams to
+	// be redirected during the runtime of the program, the cost of checking on
+	// every single log message is not worth it to support such an
+	// uncommonly-used feature.
+	if terminal.color_enabled {
+		// This is done this way because it's possible that only one of these
+		// streams could be redirected to a file.
+		if !terminal.is_terminal(os.stdout) {
+			global_subtract_stdout_options = {.Terminal_Color}
+		}
+		if !terminal.is_terminal(os.stderr) {
+			global_subtract_stderr_options = {.Terminal_Color}
+		}
+	} else {
+		// Override any terminal coloring.
+		global_subtract_stdout_options = {.Terminal_Color}
+		global_subtract_stderr_options = {.Terminal_Color}
+	}
+}
+
 create_file_logger :: proc(h: os.Handle, lowest := Level.Debug, opt := Default_File_Logger_Opts, ident := "", allocator := context.allocator) -> Logger {
 	data := new(File_Console_Logger_Data, allocator)
 	data.file_handle = h
 	data.ident = ident
-	return Logger{file_console_logger_proc, data, lowest, opt}
+	return Logger{file_logger_proc, data, lowest, opt}
 }
 
 destroy_file_logger :: proc(log: Logger, allocator := context.allocator) {
@@ -56,19 +83,15 @@ create_console_logger :: proc(lowest := Level.Debug, opt := Default_Console_Logg
 	data := new(File_Console_Logger_Data, allocator)
 	data.file_handle = os.INVALID_HANDLE
 	data.ident = ident
-	return Logger{file_console_logger_proc, data, lowest, opt}
+	return Logger{console_logger_proc, data, lowest, opt}
 }
 
 destroy_console_logger :: proc(log: Logger, allocator := context.allocator) {
 	free(log.data, allocator)
 }
 
-file_console_logger_proc :: proc(logger_data: rawptr, level: Level, text: string, options: Options, location := #caller_location) {
+@(private)
-	data := cast(^File_Console_Logger_Data)logger_data
+_file_console_logger_proc :: proc(h: os.Handle, ident: string, level: Level, text: string, options: Options, location: runtime.Source_Code_Location) {
-	h: os.Handle = os.stdout if level <= Level.Error else os.stderr
-	if data.file_handle != os.INVALID_HANDLE {
-		h = data.file_handle
-	}
 	backing: [1024]byte //NOTE(Hoej): 1024 might be too much for a header backing, unless somebody has really long paths.
 	buf := strings.builder_from_bytes(backing[:])
 
@@ -86,13 +109,32 @@ file_console_logger_proc :: proc(logger_data: rawptr, level: Level, text: string
 		fmt.sbprintf(&buf, "[{}] ", os.current_thread_id())
 	}
 
-	if data.ident != "" {
+	if ident != "" {
-		fmt.sbprintf(&buf, "[%s] ", data.ident)
+		fmt.sbprintf(&buf, "[%s] ", ident)
 	}
 	//TODO(Hoej): When we have better atomics and such, make this thread-safe
 	fmt.fprintf(h, "%s%s\n", strings.to_string(buf), text)
 }
 
+file_logger_proc :: proc(logger_data: rawptr, level: Level, text: string, options: Options, location := #caller_location) {
+	data := cast(^File_Console_Logger_Data)logger_data
+	_file_console_logger_proc(data.file_handle, data.ident, level, text, options, location)
+}
+
+console_logger_proc :: proc(logger_data: rawptr, level: Level, text: string, options: Options, location := #caller_location) {
+	options := options
+	data := cast(^File_Console_Logger_Data)logger_data
+	h: os.Handle = ---
+	if level < Level.Error {
+		h = os.stdout
+		options -= global_subtract_stdout_options
+	} else {
+		h = os.stderr
+		options -= global_subtract_stderr_options
+	}
+	_file_console_logger_proc(h, data.ident, level, text, options, location)
+}
+
 do_level_header :: proc(opts: Options, str: ^strings.Builder, level: Level) {
 
 	RESET     :: ansi.CSI + ansi.RESET           + ansi.SGR

core/math/big/private.odin

@@ -1370,8 +1370,8 @@ _private_int_div_recursive :: proc(quotient, remainder, a, b: ^Int, allocator :=
 
 /*
 	Slower bit-bang division... also smaller.
+	Prefer `_int_div_school` for speed.
 */
-@(deprecated="Use `_int_div_school`, it's 3.5x faster.")
 _private_int_div_small :: proc(quotient, remainder, numerator, denominator: ^Int) -> (err: Error) {
 
 	ta, tb, tq, q := &Int{}, &Int{}, &Int{}, &Int{}

core/math/big/radix.odin

@@ -280,7 +280,7 @@ int_atoi :: proc(res: ^Int, input: string, radix := i8(10), allocator := context
 		}
 
 		pos := ch - '+'
-		if RADIX_TABLE_REVERSE_SIZE <= pos {
+		if RADIX_TABLE_REVERSE_SIZE <= u32(pos) {
 			break
 		}
 		y := RADIX_TABLE_REVERSE[pos]

core/math/fixed/fixed.odin

@@ -103,7 +103,7 @@ round :: proc(x: $T/Fixed($Backing, $Fraction_Width)) -> Backing {
 }
 
 @(require_results)
-append :: proc(dst: []byte, x: $T/Fixed($Backing, $Fraction_Width)) -> string {
+write :: proc(dst: []byte, x: $T/Fixed($Backing, $Fraction_Width)) -> string {
 	Integer_Width :: 8*size_of(Backing) - Fraction_Width
 
 	x := x
@@ -124,16 +124,16 @@ append :: proc(dst: []byte, x: $T/Fixed($Backing, $Fraction_Width)) -> string {
 
 		when size_of(Backing) < 16 {
 			T :: u64
-			append_uint :: strconv.append_uint
+			write_uint :: strconv.write_uint
 		} else {
 			T :: u128
-			append_uint :: strconv.append_u128
+			write_uint :: strconv.write_u128
 		}
 
 		integer := T(x.i) >> Fraction_Width
 		fraction := T(x.i) & (1<<Fraction_Width - 1)
 
-		s := append_uint(buf[i:], integer, 10)
+		s := write_uint(buf[i:], integer, 10)
 		i += len(s)
 		if fraction != 0 {
 			buf[i] = '.'
@@ -155,7 +155,7 @@ append :: proc(dst: []byte, x: $T/Fixed($Backing, $Fraction_Width)) -> string {
 @(require_results)
 to_string :: proc(x: $T/Fixed($Backing, $Fraction_Width), allocator := context.allocator) -> string {
 	buf: [48]byte
-	s := append(buf[:], x)
+	s := write(buf[:], x)
 	str := make([]byte, len(s), allocator)
 	copy(str, s)
 	return string(str)
@@ -294,3 +294,8 @@ _power_of_two_table := [129]string{
 	"85070591730234615865843651857942052864",
 	"170141183460469231731687303715884105728",
 }
+
+@(deprecated="Use write instead")
+append :: proc(dst: []byte, x: $T/Fixed($Backing, $Fraction_Width)) -> string {
+	return write(dst, x)
+}

core/math/rand/rand.odin

@@ -350,7 +350,7 @@ Example:
 Possible Output:
 
 	6
-	500
+	13
 
 */
 @(require_results)

core/mem/mem.odin

@@ -315,18 +315,38 @@ check_zero_ptr :: proc(ptr: rawptr, len: int) -> bool {
 Offset a given pointer by a given amount.
 
 This procedure offsets the pointer `ptr` to an object of type `T`, by the amount
-of bytes specified by `offset*size_of(T)`, and returns the pointer `ptr`.
+of bytes specified by `offset * size_of(T)`, and returns the pointer `ptr`.
 
 **Note**: Prefer to use multipointer types, if possible.
 */
 ptr_offset :: intrinsics.ptr_offset
 
 /*
-Offset a given pointer by a given amount backwards.
+Subtract two pointers of the same type, and return the number of `T` between them.
 
-This procedure offsets the pointer `ptr` to an object of type `T`, by the amount
+This procedure subtracts pointer `b` from pointer `a`, both of type `^T`,
-of bytes specified by `offset*size_of(T)` in the negative direction, and
+and returns an integer count of the `T` between them.
-returns the pointer `ptr`.
+
+**Inputs**
+- `a`: A pointer to a type T
+- `b`: A pointer to a type T
+
+**Returns**
+- `b` - `a` in items of T as an `int`.
+
+Example:
+
+	import "core:mem"
+	import "core:fmt"
+
+	ptr_sub_example :: proc() {
+		arr: [2]int
+		fmt.println(mem.ptr_sub(&arr[1], &arr[0]))
+	}
+
+Output:
+
+	1
 */
 ptr_sub :: intrinsics.ptr_sub
 

core/mem/rollback_stack_allocator.odin

@@ -1,6 +1,7 @@
 package mem
 
 import "base:runtime"
+import "base:sanitizer"
 
 /*
 Rollback stack default block size.
@@ -47,14 +48,14 @@ Rollback_Stack :: struct {
 	block_allocator: Allocator,
 }
 
-@(private="file", require_results)
+@(private="file", require_results, no_sanitize_address)
 rb_ptr_in_bounds :: proc(block: ^Rollback_Stack_Block, ptr: rawptr) -> bool {
 	start := raw_data(block.buffer)
 	end   := start[block.offset:]
 	return start < ptr && ptr <= end
 }
 
-@(private="file", require_results)
+@(private="file", require_results, no_sanitize_address)
 rb_find_ptr :: proc(stack: ^Rollback_Stack, ptr: rawptr) -> (
 	parent: ^Rollback_Stack_Block,
 	block:  ^Rollback_Stack_Block,
@@ -71,7 +72,7 @@ rb_find_ptr :: proc(stack: ^Rollback_Stack, ptr: rawptr) -> (
 	return nil, nil, nil, .Invalid_Pointer
 }
 
-@(private="file", require_results)
+@(private="file", require_results, no_sanitize_address)
 rb_find_last_alloc :: proc(stack: ^Rollback_Stack, ptr: rawptr) -> (
 	block: ^Rollback_Stack_Block,
 	header: ^Rollback_Stack_Header,
@@ -86,9 +87,10 @@ rb_find_last_alloc :: proc(stack: ^Rollback_Stack, ptr: rawptr) -> (
 	return nil, nil, false
 }
 
-@(private="file")
+@(private="file", no_sanitize_address)
 rb_rollback_block :: proc(block: ^Rollback_Stack_Block, header: ^Rollback_Stack_Header) {
 	header := header
+
 	for block.offset > 0 && header.is_free {
 		block.offset = header.prev_offset
 		block.last_alloc = raw_data(block.buffer)[header.prev_ptr:]
@@ -99,9 +101,10 @@ rb_rollback_block :: proc(block: ^Rollback_Stack_Block, header: ^Rollback_Stack_
 /*
 Free memory to a rollback stack allocator.
 */
-@(private="file", require_results)
+@(private="file", require_results, no_sanitize_address)
 rb_free :: proc(stack: ^Rollback_Stack, ptr: rawptr) -> Allocator_Error {
 	parent, block, header := rb_find_ptr(stack, ptr) or_return
+
 	if header.is_free {
 		return .Invalid_Pointer
 	}
@@ -120,7 +123,7 @@ rb_free :: proc(stack: ^Rollback_Stack, ptr: rawptr) -> Allocator_Error {
 /*
 Free all memory owned by the rollback stack allocator.
 */
-@(private="file")
+@(private="file", no_sanitize_address)
 rb_free_all :: proc(stack: ^Rollback_Stack) {
 	for block := stack.head.next_block; block != nil; /**/ {
 		next_block := block.next_block
@@ -131,12 +134,13 @@ rb_free_all :: proc(stack: ^Rollback_Stack) {
 	stack.head.next_block = nil
 	stack.head.last_alloc = nil
 	stack.head.offset = 0
+	sanitizer.address_poison(stack.head.buffer)
 }
 
 /*
 Allocate memory using the rollback stack allocator.
 */
-@(require_results)
+@(require_results, no_sanitize_address)
 rb_alloc :: proc(
 	stack: ^Rollback_Stack,
 	size: int,
@@ -153,7 +157,7 @@ rb_alloc :: proc(
 /*
 Allocate memory using the rollback stack allocator.
 */
-@(require_results)
+@(require_results, no_sanitize_address)
 rb_alloc_bytes :: proc(
 	stack: ^Rollback_Stack,
 	size: int,
@@ -170,7 +174,7 @@ rb_alloc_bytes :: proc(
 /*
 Allocate non-initialized memory using the rollback stack allocator.
 */
-@(require_results)
+@(require_results, no_sanitize_address)
 rb_alloc_non_zeroed :: proc(
 	stack: ^Rollback_Stack,
 	size: int,
@@ -184,7 +188,7 @@ rb_alloc_non_zeroed :: proc(
 /*
 Allocate non-initialized memory using the rollback stack allocator.
 */
-@(require_results)
+@(require_results, no_sanitize_address)
 rb_alloc_bytes_non_zeroed :: proc(
 	stack: ^Rollback_Stack,
 	size: int,
@@ -194,6 +198,7 @@ rb_alloc_bytes_non_zeroed :: proc(
 	assert(size >= 0, "Size must be positive or zero.", loc)
 	assert(is_power_of_two(cast(uintptr)alignment), "Alignment must be a power of two.", loc)
 	parent: ^Rollback_Stack_Block
+
 	for block := stack.head; /**/; block = block.next_block {
 		when !ODIN_DISABLE_ASSERT {
 			allocated_new_block: bool
@@ -235,7 +240,9 @@ rb_alloc_bytes_non_zeroed :: proc(
 			// Prevent any further allocations on it.
 			block.offset = cast(uintptr)len(block.buffer)
 		}
-		#no_bounds_check return ptr[:size], nil
+		res := ptr[:size]
+		sanitizer.address_unpoison(res)
+		return res, nil
 	}
 	return nil, .Out_Of_Memory
 }
@@ -243,7 +250,7 @@ rb_alloc_bytes_non_zeroed :: proc(
 /*
 Resize an allocation owned by rollback stack allocator.
 */
-@(require_results)
+@(require_results, no_sanitize_address)
 rb_resize :: proc(
 	stack: ^Rollback_Stack,
 	old_ptr: rawptr,
@@ -266,7 +273,7 @@ rb_resize :: proc(
 /*
 Resize an allocation owned by rollback stack allocator.
 */
-@(require_results)
+@(require_results, no_sanitize_address)
 rb_resize_bytes :: proc(
 	stack: ^Rollback_Stack,
 	old_memory: []byte,
@@ -289,7 +296,7 @@ rb_resize_bytes :: proc(
 Resize an allocation owned by rollback stack allocator without explicit
 zero-initialization.
 */
-@(require_results)
+@(require_results, no_sanitize_address)
 rb_resize_non_zeroed :: proc(
 	stack: ^Rollback_Stack,
 	old_ptr: rawptr,
@@ -306,7 +313,7 @@ rb_resize_non_zeroed :: proc(
 Resize an allocation owned by rollback stack allocator without explicit
 zero-initialization.
 */
-@(require_results)
+@(require_results, no_sanitize_address)
 rb_resize_bytes_non_zeroed :: proc(
 	stack: ^Rollback_Stack,
 	old_memory: []byte,
@@ -330,7 +337,9 @@ rb_resize_bytes_non_zeroed :: proc(
 				if len(block.buffer) <= stack.block_size {
 					block.offset += cast(uintptr)size - cast(uintptr)old_size
 				}
-				#no_bounds_check return (ptr)[:size], nil
+				res := (ptr)[:size]
+				sanitizer.address_unpoison(res)
+				#no_bounds_check return res, nil
 			}
 		}
 	}
@@ -340,7 +349,7 @@ rb_resize_bytes_non_zeroed :: proc(
 	return
 }
 
-@(private="file", require_results)
+@(private="file", require_results, no_sanitize_address)
 rb_make_block :: proc(size: int, allocator: Allocator) -> (block: ^Rollback_Stack_Block, err: Allocator_Error) {
 	buffer := runtime.mem_alloc(size_of(Rollback_Stack_Block) + size, align_of(Rollback_Stack_Block), allocator) or_return
 	block = cast(^Rollback_Stack_Block)raw_data(buffer)
@@ -351,6 +360,7 @@ rb_make_block :: proc(size: int, allocator: Allocator) -> (block: ^Rollback_Stac
 /*
 Initialize the rollback stack allocator using a fixed backing buffer.
 */
+@(no_sanitize_address)
 rollback_stack_init_buffered :: proc(stack: ^Rollback_Stack, buffer: []byte, location := #caller_location) {
 	MIN_SIZE :: size_of(Rollback_Stack_Block) + size_of(Rollback_Stack_Header) + size_of(rawptr)
 	assert(len(buffer) >= MIN_SIZE, "User-provided buffer to Rollback Stack Allocator is too small.", location)
@@ -365,6 +375,7 @@ rollback_stack_init_buffered :: proc(stack: ^Rollback_Stack, buffer: []byte, loc
 /*
 Initialize the rollback stack alocator using a backing block allocator.
 */
+@(no_sanitize_address)
 rollback_stack_init_dynamic :: proc(
 	stack: ^Rollback_Stack,
 	block_size : int = ROLLBACK_STACK_DEFAULT_BLOCK_SIZE,
@@ -396,6 +407,7 @@ rollback_stack_init :: proc {
 /*
 Destroy a rollback stack.
 */
+@(no_sanitize_address)
 rollback_stack_destroy :: proc(stack: ^Rollback_Stack) {
 	if stack.block_allocator.procedure != nil {
 		rb_free_all(stack)
@@ -435,7 +447,7 @@ from the last allocation backwards.
 Each allocation has an overhead of 8 bytes and any extra bytes to satisfy
 the requested alignment.
 */
-@(require_results)
+@(require_results, no_sanitize_address)
 rollback_stack_allocator :: proc(stack: ^Rollback_Stack) -> Allocator {
 	return Allocator {
 		data = stack,
@@ -443,7 +455,7 @@ rollback_stack_allocator :: proc(stack: ^Rollback_Stack) -> Allocator {
 	}
 }
 
-@(require_results)
+@(require_results, no_sanitize_address)
 rollback_stack_allocator_proc :: proc(
 	allocator_data: rawptr,
 	mode: Allocator_Mode,

core/mem/tlsf/tlsf_internal.odin

@@ -10,6 +10,7 @@
 package mem_tlsf
 
 import "base:intrinsics"
+import "base:sanitizer"
 import "base:runtime"
 
 // log2 of number of linear subdivisions of block sizes.
@@ -209,6 +210,8 @@ alloc_bytes_non_zeroed :: proc(control: ^Allocator, size: uint, align: uint) ->
 				return nil, .Out_Of_Memory
 			}
 
+			sanitizer.address_poison(new_pool_buf)
+
 			// Allocate a new link in the `control.pool` tracking structure.
 			new_pool := new_clone(Pool{
 				data      = new_pool_buf,
@@ -254,7 +257,7 @@ alloc_bytes_non_zeroed :: proc(control: ^Allocator, size: uint, align: uint) ->
 	return block_prepare_used(control, block, adjust)
 }
 
-@(private, require_results)
+@(private, require_results, no_sanitize_address)
 alloc_bytes :: proc(control: ^Allocator, size: uint, align: uint) -> (res: []byte, err: runtime.Allocator_Error) {
 	res, err = alloc_bytes_non_zeroed(control, size, align)
 	if err == nil {
@@ -273,6 +276,7 @@ free_with_size :: proc(control: ^Allocator, ptr: rawptr, size: uint) {
 
 	block := block_from_ptr(ptr)
 	assert(!block_is_free(block), "block already marked as free") // double free
+	sanitizer.address_poison(ptr, block.size)
 	block_mark_as_free(block)
 	block = block_merge_prev(control, block)
 	block = block_merge_next(control, block)
@@ -316,6 +320,7 @@ resize :: proc(control: ^Allocator, ptr: rawptr, old_size, new_size: uint, align
 
 	block_trim_used(control, block, adjust)
 	res = ([^]byte)(ptr)[:new_size]
+	sanitizer.address_unpoison(res)
 
 	if min_size < new_size {
 		to_zero := ([^]byte)(ptr)[min_size:new_size]
@@ -374,95 +379,96 @@ resize_non_zeroed :: proc(control: ^Allocator, ptr: rawptr, old_size, new_size:
 	NOTE: TLSF spec relies on ffs/fls returning a value in the range 0..31.
 */
 
-@(private, require_results)
+@(private, require_results, no_sanitize_address)
 block_size :: proc "contextless" (block: ^Block_Header) -> (size: uint) {
 	return block.size &~ (BLOCK_HEADER_FREE | BLOCK_HEADER_PREV_FREE)
 }
 
-@(private)
+@(private, no_sanitize_address)
 block_set_size :: proc "contextless" (block: ^Block_Header, size: uint) {
 	old_size := block.size
 	block.size = size | (old_size & (BLOCK_HEADER_FREE | BLOCK_HEADER_PREV_FREE))
 }
 
-@(private, require_results)
+@(private, require_results, no_sanitize_address)
 block_is_last :: proc "contextless" (block: ^Block_Header) -> (is_last: bool) {
 	return block_size(block) == 0
 }
 
-@(private, require_results)
+@(private, require_results, no_sanitize_address)
 block_is_free :: proc "contextless" (block: ^Block_Header) -> (is_free: bool) {
 	return (block.size & BLOCK_HEADER_FREE) == BLOCK_HEADER_FREE
 }
 
-@(private)
+@(private, no_sanitize_address)
 block_set_free :: proc "contextless" (block: ^Block_Header) {
 	block.size |= BLOCK_HEADER_FREE
 }
 
-@(private)
+@(private, no_sanitize_address)
 block_set_used :: proc "contextless" (block: ^Block_Header) {
 	block.size &~= BLOCK_HEADER_FREE
 }
 
-@(private, require_results)
+@(private, require_results, no_sanitize_address)
 block_is_prev_free :: proc "contextless" (block: ^Block_Header) -> (is_prev_free: bool) {
 	return (block.size & BLOCK_HEADER_PREV_FREE) == BLOCK_HEADER_PREV_FREE
 }
 
-@(private)
+@(private, no_sanitize_address)
 block_set_prev_free :: proc "contextless" (block: ^Block_Header) {
 	block.size |= BLOCK_HEADER_PREV_FREE
 }
 
-@(private)
+@(private, no_sanitize_address)
 block_set_prev_used :: proc "contextless" (block: ^Block_Header) {
 	block.size &~= BLOCK_HEADER_PREV_FREE
 }
 
-@(private, require_results)
+@(private, require_results, no_sanitize_address)
 block_from_ptr :: proc(ptr: rawptr) -> (block_ptr: ^Block_Header) {
 	return (^Block_Header)(uintptr(ptr) - BLOCK_START_OFFSET)
 }
 
-@(private, require_results)
+@(private, require_results, no_sanitize_address)
 block_to_ptr   :: proc(block: ^Block_Header) -> (ptr: rawptr) {
 	return rawptr(uintptr(block) + BLOCK_START_OFFSET)
 }
 
 // Return location of next block after block of given size.
-@(private, require_results)
+@(private, require_results, no_sanitize_address)
 offset_to_block :: proc(ptr: rawptr, size: uint) -> (block: ^Block_Header) {
 	return (^Block_Header)(uintptr(ptr) + uintptr(size))
 }
 
-@(private, require_results)
+@(private, require_results, no_sanitize_address)
 offset_to_block_backwards :: proc(ptr: rawptr, size: uint) -> (block: ^Block_Header) {
 	return (^Block_Header)(uintptr(ptr) - uintptr(size))
 }
 
 // Return location of previous block.
-@(private, require_results)
+@(private, require_results, no_sanitize_address)
 block_prev :: proc(block: ^Block_Header) -> (prev: ^Block_Header) {
 	assert(block_is_prev_free(block), "previous block must be free")
+
 	return block.prev_phys_block
 }
 
 // Return location of next existing block.
-@(private, require_results)
+@(private, require_results, no_sanitize_address)
 block_next :: proc(block: ^Block_Header) -> (next: ^Block_Header) {
 	return offset_to_block(block_to_ptr(block), block_size(block) - BLOCK_HEADER_OVERHEAD)
 }
 
 // Link a new block with its physical neighbor, return the neighbor.
-@(private, require_results)
+@(private, require_results, no_sanitize_address)
 block_link_next :: proc(block: ^Block_Header) -> (next: ^Block_Header) {
 	next = block_next(block)
 	next.prev_phys_block = block
 	return
 }
 
-@(private)
+@(private, no_sanitize_address)
 block_mark_as_free :: proc(block: ^Block_Header) {
 	// Link the block to the next block, first.
 	next := block_link_next(block)
@@ -470,26 +476,26 @@ block_mark_as_free :: proc(block: ^Block_Header) {
 	block_set_free(block)
 }
 
-@(private)
+@(private, no_sanitize_address)
 block_mark_as_used :: proc(block: ^Block_Header) {
 	next := block_next(block)
 	block_set_prev_used(next)
 	block_set_used(block)
 }
 
-@(private, require_results)
+@(private, require_results, no_sanitize_address)
 align_up :: proc(x, align: uint) -> (aligned: uint) {
 	assert(0 == (align & (align - 1)), "must align to a power of two")
 	return (x + (align - 1)) &~ (align - 1)
 }
 
-@(private, require_results)
+@(private, require_results, no_sanitize_address)
 align_down :: proc(x, align: uint) -> (aligned: uint) {
 	assert(0 == (align & (align - 1)), "must align to a power of two")
 	return x - (x & (align - 1))
 }
 
-@(private, require_results)
+@(private, require_results, no_sanitize_address)
 align_ptr :: proc(ptr: rawptr, align: uint) -> (aligned: rawptr) {
 	assert(0 == (align & (align - 1)), "must align to a power of two")
 	align_mask := uintptr(align) - 1
@@ -499,7 +505,7 @@ align_ptr :: proc(ptr: rawptr, align: uint) -> (aligned: rawptr) {
 }
 
 // Adjust an allocation size to be aligned to word size, and no smaller than internal minimum.
-@(private, require_results)
+@(private, require_results, no_sanitize_address)
 adjust_request_size :: proc(size, align: uint) -> (adjusted: uint) {
 	if size == 0 {
 		return 0
@@ -513,7 +519,7 @@ adjust_request_size :: proc(size, align: uint) -> (adjusted: uint) {
 }
 
 // Adjust an allocation size to be aligned to word size, and no smaller than internal minimum.
-@(private, require_results)
+@(private, require_results, no_sanitize_address)
 adjust_request_size_with_err :: proc(size, align: uint) -> (adjusted: uint, err: runtime.Allocator_Error) {
 	if size == 0 {
 		return 0, nil
@@ -531,7 +537,7 @@ adjust_request_size_with_err :: proc(size, align: uint) -> (adjusted: uint, err:
 // TLSF utility functions. In most cases these are direct translations of
 // the documentation in the research paper.
 
-@(optimization_mode="favor_size", private, require_results)
+@(optimization_mode="favor_size", private, require_results, no_sanitize_address)
 mapping_insert :: proc(size: uint) -> (fl, sl: i32) {
 	if size < SMALL_BLOCK_SIZE {
 		// Store small blocks in first list.
@@ -544,7 +550,7 @@ mapping_insert :: proc(size: uint) -> (fl, sl: i32) {
 	return
 }
 
-@(optimization_mode="favor_size", private, require_results)
+@(optimization_mode="favor_size", private, require_results, no_sanitize_address)
 mapping_round :: #force_inline proc(size: uint) -> (rounded: uint) {
 	rounded = size
 	if size >= SMALL_BLOCK_SIZE {
@@ -555,12 +561,12 @@ mapping_round :: #force_inline proc(size: uint) -> (rounded: uint) {
 }
 
 // This version rounds up to the next block size (for allocations)
-@(optimization_mode="favor_size", private, require_results)
+@(optimization_mode="favor_size", private, require_results, no_sanitize_address)
 mapping_search :: proc(size: uint) -> (fl, sl: i32) {
 	return mapping_insert(mapping_round(size))
 }
 
-@(private, require_results)
+@(private, require_results, no_sanitize_address)
 search_suitable_block :: proc(control: ^Allocator, fli, sli: ^i32) -> (block: ^Block_Header) {
 	// First, search for a block in the list associated with the given fl/sl index.
 	fl := fli^; sl := sli^
@@ -587,7 +593,7 @@ search_suitable_block :: proc(control: ^Allocator, fli, sli: ^i32) -> (block: ^B
 }
 
 // Remove a free block from the free list.
-@(private)
+@(private, no_sanitize_address)
 remove_free_block :: proc(control: ^Allocator, block: ^Block_Header, fl: i32, sl: i32) {
 	prev := block.prev_free
 	next := block.next_free
@@ -613,7 +619,7 @@ remove_free_block :: proc(control: ^Allocator, block: ^Block_Header, fl: i32, sl
 }
 
 // Insert a free block into the free block list.
-@(private)
+@(private, no_sanitize_address)
 insert_free_block :: proc(control: ^Allocator, block: ^Block_Header, fl: i32, sl: i32) {
 	current := control.blocks[fl][sl]
 	assert(current != nil, "free lists cannot have a nil entry")
@@ -631,26 +637,26 @@ insert_free_block :: proc(control: ^Allocator, block: ^Block_Header, fl: i32, sl
 }
 
 // Remove a given block from the free list.
-@(private)
+@(private, no_sanitize_address)
 block_remove :: proc(control: ^Allocator, block: ^Block_Header) {
 	fl, sl := mapping_insert(block_size(block))
 	remove_free_block(control, block, fl, sl)
 }
 
 // Insert a given block into the free list.
-@(private)
+@(private, no_sanitize_address)
 block_insert :: proc(control: ^Allocator, block: ^Block_Header) {
 	fl, sl := mapping_insert(block_size(block))
 	insert_free_block(control, block, fl, sl)
 }
 
-@(private, require_results)
+@(private, require_results, no_sanitize_address)
 block_can_split :: proc(block: ^Block_Header, size: uint) -> (can_split: bool) {
 	return block_size(block) >= size_of(Block_Header) + size
 }
 
 // Split a block into two, the second of which is free.
-@(private, require_results)
+@(private, require_results, no_sanitize_address)
 block_split :: proc(block: ^Block_Header, size: uint) -> (remaining: ^Block_Header) {
 	// Calculate the amount of space left in the remaining block.
 	remaining = offset_to_block(block_to_ptr(block), size - BLOCK_HEADER_OVERHEAD)
@@ -671,9 +677,10 @@ block_split :: proc(block: ^Block_Header, size: uint) -> (remaining: ^Block_Head
 }
 
 // Absorb a free block's storage into an adjacent previous free block.
-@(private, require_results)
+@(private, require_results, no_sanitize_address)
 block_absorb :: proc(prev: ^Block_Header, block: ^Block_Header) -> (absorbed: ^Block_Header) {
 	assert(!block_is_last(prev), "previous block can't be last")
+
 	// Note: Leaves flags untouched.
 	prev.size += block_size(block) + BLOCK_HEADER_OVERHEAD
 	_ = block_link_next(prev)
@@ -681,7 +688,7 @@ block_absorb :: proc(prev: ^Block_Header, block: ^Block_Header) -> (absorbed: ^B
 }
 
 // Merge a just-freed block with an adjacent previous free block.
-@(private, require_results)
+@(private, require_results, no_sanitize_address)
 block_merge_prev :: proc(control: ^Allocator, block: ^Block_Header) -> (merged: ^Block_Header) {
 	merged = block
 	if (block_is_prev_free(block)) {
@@ -695,7 +702,7 @@ block_merge_prev :: proc(control: ^Allocator, block: ^Block_Header) -> (merged:
 }
 
 // Merge a just-freed block with an adjacent free block.
-@(private, require_results)
+@(private, require_results, no_sanitize_address)
 block_merge_next :: proc(control: ^Allocator, block: ^Block_Header) -> (merged: ^Block_Header) {
 	merged = block
 	next  := block_next(block)
@@ -710,7 +717,7 @@ block_merge_next :: proc(control: ^Allocator, block: ^Block_Header) -> (merged:
 }
 
 // Trim any trailing block space off the end of a free block, return to pool.
-@(private)
+@(private, no_sanitize_address)
 block_trim_free :: proc(control: ^Allocator, block: ^Block_Header, size: uint) {
 	assert(block_is_free(block), "block must be free")
 	if (block_can_split(block, size)) {
@@ -722,7 +729,7 @@ block_trim_free :: proc(control: ^Allocator, block: ^Block_Header, size: uint) {
 }
 
 // Trim any trailing block space off the end of a used block, return to pool.
-@(private)
+@(private, no_sanitize_address)
 block_trim_used :: proc(control: ^Allocator, block: ^Block_Header, size: uint) {
 	assert(!block_is_free(block), "Block must be used")
 	if (block_can_split(block, size)) {
@@ -736,7 +743,7 @@ block_trim_used :: proc(control: ^Allocator, block: ^Block_Header, size: uint) {
 }
 
 // Trim leading block space, return to pool.
-@(private, require_results)
+@(private, require_results, no_sanitize_address)
 block_trim_free_leading :: proc(control: ^Allocator, block: ^Block_Header, size: uint) -> (remaining: ^Block_Header) {
 	remaining = block
 	if block_can_split(block, size) {
@@ -750,7 +757,7 @@ block_trim_free_leading :: proc(control: ^Allocator, block: ^Block_Header, size:
 	return remaining
 }
 
-@(private, require_results)
+@(private, require_results, no_sanitize_address)
 block_locate_free :: proc(control: ^Allocator, size: uint) -> (block: ^Block_Header) {
 	fl, sl: i32
 	if size != 0 {
@@ -774,13 +781,14 @@ block_locate_free :: proc(control: ^Allocator, size: uint) -> (block: ^Block_Hea
 	return block
 }
 
-@(private, require_results)
+@(private, require_results, no_sanitize_address)
 block_prepare_used :: proc(control: ^Allocator, block: ^Block_Header, size: uint) -> (res: []byte, err: runtime.Allocator_Error) {
 	if block != nil {
 		assert(size != 0, "Size must be non-zero")
 		block_trim_free(control, block, size)
 		block_mark_as_used(block)
 		res = ([^]byte)(block_to_ptr(block))[:size]
+		sanitizer.address_unpoison(res)
 	}
 	return
 }

core/mem/tracking_allocator.odin

@@ -64,6 +64,7 @@ This procedure initializes the tracking allocator `t` with a backing allocator
 specified with `backing_allocator`. The `internals_allocator` will used to
 allocate the tracked data.
 */
+@(no_sanitize_address)
 tracking_allocator_init :: proc(t: ^Tracking_Allocator, backing_allocator: Allocator, internals_allocator := context.allocator) {
 	t.backing = backing_allocator
 	t.allocation_map.allocator = internals_allocator
@@ -77,6 +78,7 @@ tracking_allocator_init :: proc(t: ^Tracking_Allocator, backing_allocator: Alloc
 /*
 Destroy the tracking allocator.
 */
+@(no_sanitize_address)
 tracking_allocator_destroy :: proc(t: ^Tracking_Allocator) {
 	delete(t.allocation_map)
 	delete(t.bad_free_array)
@@ -90,6 +92,7 @@ This procedure clears the tracked data from a tracking allocator.
 **Note**: This procedure clears only the current allocation data while keeping
 the totals intact.
 */
+@(no_sanitize_address)
 tracking_allocator_clear :: proc(t: ^Tracking_Allocator) {
 	sync.mutex_lock(&t.mutex)
 	clear(&t.allocation_map)
@@ -103,6 +106,7 @@ Reset the tracking allocator.
 
 Reset all of a Tracking Allocator's allocation data back to zero.
 */
+@(no_sanitize_address)
 tracking_allocator_reset :: proc(t: ^Tracking_Allocator) {
 	sync.mutex_lock(&t.mutex)
 	clear(&t.allocation_map)
@@ -124,6 +128,7 @@ Override Tracking_Allocator.bad_free_callback to have something else happen. For
 example, you can use tracking_allocator_bad_free_callback_add_to_array to return
 the tracking allocator to the old behavior, where the bad_free_array was used.
 */
+@(no_sanitize_address)
 tracking_allocator_bad_free_callback_panic :: proc(t: ^Tracking_Allocator, memory: rawptr, location: runtime.Source_Code_Location) {
 	runtime.print_caller_location(location)
 	runtime.print_string(" Tracking allocator error: Bad free of pointer ")
@@ -136,6 +141,7 @@ tracking_allocator_bad_free_callback_panic :: proc(t: ^Tracking_Allocator, memor
 Alternative behavior for a bad free: Store in `bad_free_array`. If you use this,
 then you must make sure to check Tracking_Allocator.bad_free_array at some point.
 */
+@(no_sanitize_address)
 tracking_allocator_bad_free_callback_add_to_array :: proc(t: ^Tracking_Allocator, memory: rawptr, location: runtime.Source_Code_Location) {
 	append(&t.bad_free_array, Tracking_Allocator_Bad_Free_Entry {
 		memory = memory,
@@ -175,7 +181,7 @@ Example:
 		}
 	}
 */
-@(require_results)
+@(require_results, no_sanitize_address)
 tracking_allocator :: proc(data: ^Tracking_Allocator) -> Allocator {
 	return Allocator{
 		data = data,
@@ -183,6 +189,7 @@ tracking_allocator :: proc(data: ^Tracking_Allocator) -> Allocator {
 	}
 }
 
+@(no_sanitize_address)
 tracking_allocator_proc :: proc(
 	allocator_data: rawptr,
 	mode: Allocator_Mode,
@@ -191,6 +198,7 @@ tracking_allocator_proc :: proc(
 	old_size: int,
 	loc := #caller_location,
 ) -> (result: []byte, err: Allocator_Error) {
+	@(no_sanitize_address)
 	track_alloc :: proc(data: ^Tracking_Allocator, entry: ^Tracking_Allocator_Entry) {
 		data.total_memory_allocated += i64(entry.size)
 		data.total_allocation_count += 1
@@ -200,6 +208,7 @@ tracking_allocator_proc :: proc(
 		}
 	}
 
+	@(no_sanitize_address)
 	track_free :: proc(data: ^Tracking_Allocator, entry: ^Tracking_Allocator_Entry) {
 		data.total_memory_freed += i64(entry.size)
 		data.total_free_count += 1

core/mem/virtual/arena.odin

@@ -3,6 +3,8 @@ package mem_virtual
 import "core:mem"
 import "core:sync"
 
+import "base:sanitizer"
+
 Arena_Kind :: enum uint {
 	Growing = 0, // Chained memory blocks (singly linked list).
 	Static  = 1, // Fixed reservation sized.
@@ -43,7 +45,7 @@ DEFAULT_ARENA_STATIC_RESERVE_SIZE :: mem.Gigabyte when size_of(uintptr) == 8 els
 
 // Initialization of an `Arena` to be a `.Growing` variant.
 // A growing arena is a linked list of `Memory_Block`s allocated with virtual memory.
-@(require_results)
+@(require_results, no_sanitize_address)
 arena_init_growing :: proc(arena: ^Arena, reserved: uint = DEFAULT_ARENA_GROWING_MINIMUM_BLOCK_SIZE) -> (err: Allocator_Error) {
 	arena.kind           = .Growing
 	arena.curr_block     = memory_block_alloc(0, reserved, {}) or_return
@@ -53,24 +55,26 @@ arena_init_growing :: proc(arena: ^Arena, reserved: uint = DEFAULT_ARENA_GROWING
 	if arena.minimum_block_size == 0 {
 		arena.minimum_block_size = reserved
 	}
+	sanitizer.address_poison(arena.curr_block.base[:arena.curr_block.committed])
 	return
 }
 
 
 // Initialization of an `Arena` to be a `.Static` variant.
 // A static arena contains a single `Memory_Block` allocated with virtual memory.
-@(require_results)
+@(require_results, no_sanitize_address)
 arena_init_static :: proc(arena: ^Arena, reserved: uint = DEFAULT_ARENA_STATIC_RESERVE_SIZE, commit_size: uint = DEFAULT_ARENA_STATIC_COMMIT_SIZE) -> (err: Allocator_Error) {
 	arena.kind           = .Static
 	arena.curr_block     = memory_block_alloc(commit_size, reserved, {}) or_return
 	arena.total_used     = 0
 	arena.total_reserved = arena.curr_block.reserved
+	sanitizer.address_poison(arena.curr_block.base[:arena.curr_block.committed])
 	return
 }
 
 // Initialization of an `Arena` to be a `.Buffer` variant.
 // A buffer arena contains single `Memory_Block` created from a user provided []byte.
-@(require_results)
+@(require_results, no_sanitize_address)
 arena_init_buffer :: proc(arena: ^Arena, buffer: []byte) -> (err: Allocator_Error) {
 	if len(buffer) < size_of(Memory_Block) {
 		return .Out_Of_Memory
@@ -78,7 +82,7 @@ arena_init_buffer :: proc(arena: ^Arena, buffer: []byte) -> (err: Allocator_Erro
 
 	arena.kind = .Buffer
 
-	mem.zero_slice(buffer)
+	sanitizer.address_poison(buffer[:])
 
 	block_base := raw_data(buffer)
 	block := (^Memory_Block)(block_base)
@@ -94,7 +98,7 @@ arena_init_buffer :: proc(arena: ^Arena, buffer: []byte) -> (err: Allocator_Erro
 }
 
 // Allocates memory from the provided arena.
-@(require_results)
+@(require_results, no_sanitize_address)
 arena_alloc :: proc(arena: ^Arena, size: uint, alignment: uint, loc := #caller_location) -> (data: []byte, err: Allocator_Error) {
 	assert(alignment & (alignment-1) == 0, "non-power of two alignment", loc)
 
@@ -158,10 +162,13 @@ arena_alloc :: proc(arena: ^Arena, size: uint, alignment: uint, loc := #caller_l
 		data, err = alloc_from_memory_block(arena.curr_block, size, alignment, default_commit_size=0)
 		arena.total_used = arena.curr_block.used
 	}
+
+	sanitizer.address_unpoison(data)
 	return
 }
 
 // Resets the memory of a Static or Buffer arena to a specific `position` (offset) and zeroes the previously used memory.
+@(no_sanitize_address)
 arena_static_reset_to :: proc(arena: ^Arena, pos: uint, loc := #caller_location) -> bool {
 	sync.mutex_guard(&arena.mutex)
 
@@ -175,6 +182,7 @@ arena_static_reset_to :: proc(arena: ^Arena, pos: uint, loc := #caller_location)
 			mem.zero_slice(arena.curr_block.base[arena.curr_block.used:][:prev_pos-pos])
 		}
 		arena.total_used = arena.curr_block.used
+		sanitizer.address_poison(arena.curr_block.base[:arena.curr_block.committed])
 		return true
 	} else if pos == 0 {
 		arena.total_used = 0
@@ -184,6 +192,7 @@ arena_static_reset_to :: proc(arena: ^Arena, pos: uint, loc := #caller_location)
 }
 
 // Frees the last memory block of a Growing Arena
+@(no_sanitize_address)
 arena_growing_free_last_memory_block :: proc(arena: ^Arena, loc := #caller_location) {
 	if free_block := arena.curr_block; free_block != nil {
 		assert(arena.kind == .Growing, "expected a .Growing arena", loc)
@@ -191,11 +200,13 @@ arena_growing_free_last_memory_block :: proc(arena: ^Arena, loc := #caller_locat
 		arena.total_reserved -= free_block.reserved
 
 		arena.curr_block = free_block.prev
+		sanitizer.address_poison(free_block.base[:free_block.committed])
 		memory_block_dealloc(free_block)
 	}
 }
 
 // Deallocates all but the first memory block of the arena and resets the allocator's usage to 0.
+@(no_sanitize_address)
 arena_free_all :: proc(arena: ^Arena, loc := #caller_location) {
 	switch arena.kind {
 	case .Growing:
@@ -208,7 +219,9 @@ arena_free_all :: proc(arena: ^Arena, loc := #caller_location) {
 		if arena.curr_block != nil {
 			curr_block_used := int(arena.curr_block.used)
 			arena.curr_block.used = 0
+			sanitizer.address_unpoison(arena.curr_block.base[:curr_block_used])
 			mem.zero(arena.curr_block.base, curr_block_used)
+			sanitizer.address_poison(arena.curr_block.base[:arena.curr_block.committed])
 		}
 		arena.total_used = 0
 	case .Static, .Buffer:
@@ -219,6 +232,7 @@ arena_free_all :: proc(arena: ^Arena, loc := #caller_location) {
 
 // Frees all of the memory allocated by the arena and zeros all of the values of an arena.
 // A buffer based arena does not `delete` the provided `[]byte` bufffer.
+@(no_sanitize_address)
 arena_destroy :: proc(arena: ^Arena, loc := #caller_location) {
 	sync.mutex_guard(&arena.mutex)
 	switch arena.kind {
@@ -250,7 +264,7 @@ arena_static_bootstrap_new :: proc{
 }
 
 // Ability to bootstrap allocate a struct with an arena within the struct itself using the growing variant strategy.
-@(require_results)
+@(require_results, no_sanitize_address)
 arena_growing_bootstrap_new_by_offset :: proc($T: typeid, offset_to_arena: uintptr, minimum_block_size: uint = DEFAULT_ARENA_GROWING_MINIMUM_BLOCK_SIZE) -> (ptr: ^T, err: Allocator_Error) {
 	bootstrap: Arena
 	bootstrap.kind = .Growing
@@ -266,13 +280,13 @@ arena_growing_bootstrap_new_by_offset :: proc($T: typeid, offset_to_arena: uintp
 }
 
 // Ability to bootstrap allocate a struct with an arena within the struct itself using the growing variant strategy.
-@(require_results)
+@(require_results, no_sanitize_address)
 arena_growing_bootstrap_new_by_name :: proc($T: typeid, $field_name: string, minimum_block_size: uint = DEFAULT_ARENA_GROWING_MINIMUM_BLOCK_SIZE) -> (ptr: ^T, err: Allocator_Error) {
 	return arena_growing_bootstrap_new_by_offset(T, offset_of_by_string(T, field_name), minimum_block_size)
 }
 
 // Ability to bootstrap allocate a struct with an arena within the struct itself using the static variant strategy.
-@(require_results)
+@(require_results, no_sanitize_address)
 arena_static_bootstrap_new_by_offset :: proc($T: typeid, offset_to_arena: uintptr, reserved: uint) -> (ptr: ^T, err: Allocator_Error) {
 	bootstrap: Arena
 	bootstrap.kind = .Static
@@ -288,19 +302,20 @@ arena_static_bootstrap_new_by_offset :: proc($T: typeid, offset_to_arena: uintpt
 }
 
 // Ability to bootstrap allocate a struct with an arena within the struct itself using the static variant strategy.
-@(require_results)
+@(require_results, no_sanitize_address)
 arena_static_bootstrap_new_by_name :: proc($T: typeid, $field_name: string, reserved: uint) -> (ptr: ^T, err: Allocator_Error) {
 	return arena_static_bootstrap_new_by_offset(T, offset_of_by_string(T, field_name), reserved)
 }
 
 
 // Create an `Allocator` from the provided `Arena`
-@(require_results)
+@(require_results, no_sanitize_address)
 arena_allocator :: proc(arena: ^Arena) -> mem.Allocator {
 	return mem.Allocator{arena_allocator_proc, arena}
 }
 
 // The allocator procedure used by an `Allocator` produced by `arena_allocator`
+@(no_sanitize_address)
 arena_allocator_proc :: proc(allocator_data: rawptr, mode: mem.Allocator_Mode,
                              size, alignment: int,
                              old_memory: rawptr, old_size: int,
@@ -334,6 +349,7 @@ arena_allocator_proc :: proc(allocator_data: rawptr, mode: mem.Allocator_Mode,
 			if size < old_size {
 				// shrink data in-place
 				data = old_data[:size]
+				sanitizer.address_poison(old_data[size:old_size])
 				return
 			}
 
@@ -347,6 +363,7 @@ arena_allocator_proc :: proc(allocator_data: rawptr, mode: mem.Allocator_Mode,
 					_ = alloc_from_memory_block(block, new_end - old_end, 1, default_commit_size=arena.default_commit_size) or_return
 					arena.total_used += block.used - prev_used
 					data = block.base[start:new_end]
+					sanitizer.address_unpoison(data)
 					return
 				}
 			}
@@ -357,6 +374,7 @@ arena_allocator_proc :: proc(allocator_data: rawptr, mode: mem.Allocator_Mode,
 			return
 		}
 		copy(new_memory, old_data[:old_size])
+		sanitizer.address_poison(old_data[:old_size])
 		return new_memory, nil
 	case .Query_Features:
 		set := (^mem.Allocator_Mode_Set)(old_memory)
@@ -382,7 +400,7 @@ Arena_Temp :: struct {
 }
 
 // Begins the section of temporary arena memory.
-@(require_results)
+@(require_results, no_sanitize_address)
 arena_temp_begin :: proc(arena: ^Arena, loc := #caller_location) -> (temp: Arena_Temp) {
 	assert(arena != nil, "nil arena", loc)
 	sync.mutex_guard(&arena.mutex)
@@ -397,6 +415,7 @@ arena_temp_begin :: proc(arena: ^Arena, loc := #caller_location) -> (temp: Arena
 }
 
 // Ends the section of temporary arena memory by resetting the memory to the stored position.
+@(no_sanitize_address)
 arena_temp_end :: proc(temp: Arena_Temp, loc := #caller_location) {
 	assert(temp.arena != nil, "nil arena", loc)
 	arena := temp.arena
@@ -432,6 +451,7 @@ arena_temp_end :: proc(temp: Arena_Temp, loc := #caller_location) {
 }
 
 // Ignore the use of a `arena_temp_begin` entirely by __not__ resetting to the stored position.
+@(no_sanitize_address)
 arena_temp_ignore :: proc(temp: Arena_Temp, loc := #caller_location) {
 	assert(temp.arena != nil, "nil arena", loc)
 	arena := temp.arena
@@ -442,6 +462,7 @@ arena_temp_ignore :: proc(temp: Arena_Temp, loc := #caller_location) {
 }
 
 // Asserts that all uses of `Arena_Temp` has been used by an `Arena`
+@(no_sanitize_address)
 arena_check_temp :: proc(arena: ^Arena, loc := #caller_location) {
 	assert(arena.temp_count == 0, "Arena_Temp not been ended", loc)
 }

core/mem/virtual/virtual.odin

@@ -2,6 +2,7 @@ package mem_virtual
 
 import "core:mem"
 import "base:intrinsics"
+import "base:sanitizer"
 import "base:runtime"
 _ :: runtime
 
@@ -14,27 +15,33 @@ platform_memory_init :: proc() {
 
 Allocator_Error :: mem.Allocator_Error
 
-@(require_results)
+@(require_results, no_sanitize_address)
 reserve :: proc "contextless" (size: uint) -> (data: []byte, err: Allocator_Error) {
 	return _reserve(size)
 }
 
+@(no_sanitize_address)
 commit :: proc "contextless" (data: rawptr, size: uint) -> Allocator_Error {
+	sanitizer.address_unpoison(data, size)
 	return _commit(data, size)
 }
 
-@(require_results)
+@(require_results, no_sanitize_address)
 reserve_and_commit :: proc "contextless" (size: uint) -> (data: []byte, err: Allocator_Error) {
 	data = reserve(size) or_return
 	commit(raw_data(data), size) or_return
 	return
 }
 
+@(no_sanitize_address)
 decommit :: proc "contextless" (data: rawptr, size: uint) {
+	sanitizer.address_poison(data, size)
 	_decommit(data, size)
 }
 
+@(no_sanitize_address)
 release :: proc "contextless" (data: rawptr, size: uint) {
+	sanitizer.address_unpoison(data, size)
 	_release(data, size)
 }
 
@@ -46,13 +53,11 @@ Protect_Flag :: enum u32 {
 Protect_Flags :: distinct bit_set[Protect_Flag; u32]
 Protect_No_Access :: Protect_Flags{}
 
+@(no_sanitize_address)
 protect :: proc "contextless" (data: rawptr, size: uint, flags: Protect_Flags) -> bool {
 	return _protect(data, size, flags)
 }
 
-
-
-
 Memory_Block :: struct {
 	prev: ^Memory_Block,
 	base:      [^]byte,
@@ -66,13 +71,13 @@ Memory_Block_Flag :: enum u32 {
 Memory_Block_Flags :: distinct bit_set[Memory_Block_Flag; u32]
 
 
-@(private="file", require_results)
+@(private="file", require_results, no_sanitize_address)
 align_formula :: #force_inline proc "contextless" (size, align: uint) -> uint {
 	result := size + align-1
 	return result - result%align
 }
 
-@(require_results)
+@(require_results, no_sanitize_address)
 memory_block_alloc :: proc(committed, reserved: uint, alignment: uint = 0, flags: Memory_Block_Flags = {}) -> (block: ^Memory_Block, err: Allocator_Error) {
 	page_size := DEFAULT_PAGE_SIZE
 	assert(mem.is_power_of_two(uintptr(page_size)))
@@ -116,8 +121,9 @@ memory_block_alloc :: proc(committed, reserved: uint, alignment: uint = 0, flags
 	return &pmblock.block, nil
 }
 
-@(require_results)
+@(require_results, no_sanitize_address)
 alloc_from_memory_block :: proc(block: ^Memory_Block, min_size, alignment: uint, default_commit_size: uint = 0) -> (data: []byte, err: Allocator_Error) {
+	@(no_sanitize_address)
 	calc_alignment_offset :: proc "contextless" (block: ^Memory_Block, alignment: uintptr) -> uint {
 		alignment_offset := uint(0)
 		ptr := uintptr(block.base[block.used:])
@@ -128,6 +134,7 @@ alloc_from_memory_block :: proc(block: ^Memory_Block, min_size, alignment: uint,
 		return alignment_offset
 		
 	}
+	@(no_sanitize_address)
 	do_commit_if_necessary :: proc(block: ^Memory_Block, size: uint, default_commit_size: uint) -> (err: Allocator_Error) {
 		if block.committed - block.used < size {
 			pmblock := (^Platform_Memory_Block)(block)
@@ -172,10 +179,12 @@ alloc_from_memory_block :: proc(block: ^Memory_Block, min_size, alignment: uint,
 
 	data = block.base[block.used+alignment_offset:][:min_size]
 	block.used += size
+	sanitizer.address_unpoison(data)
 	return
 }
 
 
+@(no_sanitize_address)
 memory_block_dealloc :: proc(block_to_free: ^Memory_Block) {
 	if block := (^Platform_Memory_Block)(block_to_free); block != nil {
 		platform_memory_free(block)

core/mem/virtual/virtual_platform.odin

@@ -7,6 +7,7 @@ Platform_Memory_Block :: struct {
 	reserved:   uint,
 } 
 
+@(no_sanitize_address)
 platform_memory_alloc :: proc "contextless" (to_commit, to_reserve: uint) -> (block: ^Platform_Memory_Block, err: Allocator_Error) {
 	to_commit, to_reserve := to_commit, to_reserve
 	to_reserve = max(to_commit, to_reserve)
@@ -26,12 +27,14 @@ platform_memory_alloc :: proc "contextless" (to_commit, to_reserve: uint) -> (bl
 }
 
 
+@(no_sanitize_address)
 platform_memory_free :: proc "contextless" (block: ^Platform_Memory_Block) {
 	if block != nil {
 		release(block, block.reserved)
 	}
 }
 
+@(no_sanitize_address)
 platform_memory_commit :: proc "contextless" (block: ^Platform_Memory_Block, to_commit: uint) -> (err: Allocator_Error) {
 	if to_commit < block.committed {
 		return nil

core/mem/virtual/virtual_windows.odin

@@ -83,6 +83,8 @@ foreign Kernel32 {
 		dwNumberOfBytesToMap: uint,
 	) -> rawptr ---
 }
+
+@(no_sanitize_address)
 _reserve :: proc "contextless" (size: uint) -> (data: []byte, err: Allocator_Error) {
 	result := VirtualAlloc(nil, size, MEM_RESERVE, PAGE_READWRITE)
 	if result == nil {
@@ -93,6 +95,7 @@ _reserve :: proc "contextless" (size: uint) -> (data: []byte, err: Allocator_Err
 	return
 }
 
+@(no_sanitize_address)
 _commit :: proc "contextless" (data: rawptr, size: uint) -> Allocator_Error {
 	result := VirtualAlloc(data, size, MEM_COMMIT, PAGE_READWRITE)
 	if result == nil {
@@ -107,12 +110,18 @@ _commit :: proc "contextless" (data: rawptr, size: uint) -> Allocator_Error {
 	}
 	return nil
 }
+
+@(no_sanitize_address)
 _decommit :: proc "contextless" (data: rawptr, size: uint) {
 	VirtualFree(data, size, MEM_DECOMMIT)
 }
+
+@(no_sanitize_address)
 _release :: proc "contextless" (data: rawptr, size: uint) {
 	VirtualFree(data, 0, MEM_RELEASE)
 }
+
+@(no_sanitize_address)
 _protect :: proc "contextless" (data: rawptr, size: uint, flags: Protect_Flags) -> bool {
 	pflags: u32
 	pflags = PAGE_NOACCESS
@@ -136,7 +145,7 @@ _protect :: proc "contextless" (data: rawptr, size: uint, flags: Protect_Flags)
 }
 
 
-
+@(no_sanitize_address)
 _platform_memory_init :: proc() {
 	sys_info: SYSTEM_INFO
 	GetSystemInfo(&sys_info)
@@ -147,6 +156,7 @@ _platform_memory_init :: proc() {
 }
 
 
+@(no_sanitize_address)
 _map_file :: proc "contextless" (fd: uintptr, size: i64, flags: Map_File_Flags) -> (data: []byte, error: Map_File_Error) {
 	page_flags: u32
 	if flags == {.Read} {

core/net/url.odin

@@ -125,7 +125,7 @@ percent_encode :: proc(s: string, allocator := context.allocator) -> string {
 			bytes, n := utf8.encode_rune(ch)
 			for byte in bytes[:n] {
 				buf: [2]u8 = ---
-				t := strconv.append_int(buf[:], i64(byte), 16)
+				t := strconv.write_int(buf[:], i64(byte), 16)
 				strings.write_rune(&b, '%')
 				strings.write_string(&b, t)
 			}

core/odin/parser/parser.odin

@@ -1276,28 +1276,28 @@ parse_unrolled_for_loop :: proc(p: ^Parser, inline_tok: tokenizer.Token) -> ^ast
 			args = make([dynamic]^ast.Expr)
 			for p.curr_tok.kind != .Close_Paren &&
 			    p.curr_tok.kind != .EOF {
-			    	arg := parse_value(p)
+				arg := parse_value(p)
 
-			    	if p.curr_tok.kind == .Eq {
+				if p.curr_tok.kind == .Eq {
-			    		eq := expect_token(p, .Eq)
+					eq := expect_token(p, .Eq)
-			    		if arg != nil {
+					if arg != nil {
-			    			if _, ok := arg.derived.(^ast.Ident); !ok {
+						if _, ok := arg.derived.(^ast.Ident); !ok {
-			    				error(p, arg.pos, "expected an identifier for 'key=value'")
+							error(p, arg.pos, "expected an identifier for 'key=value'")
-			    			}
+						}
-			    		}
+					}
-			    		value := parse_value(p)
+					value := parse_value(p)
-			    		fv := ast.new(ast.Field_Value, arg.pos, value)
+					fv := ast.new(ast.Field_Value, arg.pos, value)
-			    		fv.field = arg
+					fv.field = arg
-			    		fv.sep   = eq.pos
+					fv.sep   = eq.pos
-			    		fv.value = value
+					fv.value = value
 
-			    		arg = fv
+					arg = fv
-			    	}
+				}
 
-			    	append(&args, arg)
+				append(&args, arg)
 
 				allow_token(p, .Comma) or_break
-			    }
+			}
 		}
 
 		p.expr_level -= 1

core/os/os.odin

@@ -57,7 +57,7 @@ write_encoded_rune :: proc(f: Handle, r: rune) -> (n: int, err: Error) {
 		if r < 32 {
 			if wrap(write_string(f, "\\x"), &n, &err) { return }
 			b: [2]byte
-			s := strconv.append_bits(b[:], u64(r), 16, true, 64, strconv.digits, nil)
+			s := strconv.write_bits(b[:], u64(r), 16, true, 64, strconv.digits, nil)
 			switch len(s) {
 			case 0: if wrap(write_string(f, "00"), &n, &err) { return }
 			case 1: if wrap(write_rune(f, '0'), &n, &err)    { return }

core/os/os2/allocators.odin

@@ -8,43 +8,13 @@ file_allocator :: proc() -> runtime.Allocator {
 	return heap_allocator()
 }
 
-temp_allocator_proc :: runtime.arena_allocator_proc
-
 @(private="file")
 MAX_TEMP_ARENA_COUNT :: 2
-
+@(private="file")
+MAX_TEMP_ARENA_COLLISIONS :: MAX_TEMP_ARENA_COUNT - 1
 @(private="file", thread_local)
 global_default_temp_allocator_arenas: [MAX_TEMP_ARENA_COUNT]runtime.Arena
 
-@(private="file", thread_local)
-global_default_temp_allocator_index: uint
-
-
-@(require_results)
-temp_allocator :: proc() -> runtime.Allocator {
-	arena := &global_default_temp_allocator_arenas[global_default_temp_allocator_index]
-	if arena.backing_allocator.procedure == nil {
-		arena.backing_allocator = heap_allocator()
-	}
-
-	return runtime.Allocator{
-		procedure = temp_allocator_proc,
-		data      = arena,
-	}
-}
-
-
-
-@(require_results)
-temp_allocator_temp_begin :: proc(loc := #caller_location) -> (temp: runtime.Arena_Temp) {
-	temp = runtime.arena_temp_begin(&global_default_temp_allocator_arenas[global_default_temp_allocator_index], loc)
-	return
-}
-
-temp_allocator_temp_end :: proc(temp: runtime.Arena_Temp, loc := #caller_location) {
-	runtime.arena_temp_end(temp, loc)
-}
-
 @(fini, private)
 temp_allocator_fini :: proc() {
 	for &arena in global_default_temp_allocator_arenas {
@@ -53,18 +23,49 @@ temp_allocator_fini :: proc() {
 	global_default_temp_allocator_arenas = {}
 }
 
-TEMP_ALLOCATOR_GUARD_END :: proc(temp: runtime.Arena_Temp, loc := #caller_location) {
+Temp_Allocator :: struct {
-	runtime.arena_temp_end(temp, loc)
+	using arena: ^runtime.Arena,
-	if temp.arena != nil {
+	using allocator: runtime.Allocator,
-		global_default_temp_allocator_index = (global_default_temp_allocator_index-1)%MAX_TEMP_ARENA_COUNT
+	tmp: runtime.Arena_Temp,
-	}
+	loc: runtime.Source_Code_Location,
+}
+	
+TEMP_ALLOCATOR_GUARD_END :: proc(temp: Temp_Allocator) {
+	runtime.arena_temp_end(temp.tmp, temp.loc)
 }
 
 @(deferred_out=TEMP_ALLOCATOR_GUARD_END)
-TEMP_ALLOCATOR_GUARD :: #force_inline proc(loc := #caller_location) -> (runtime.Arena_Temp, runtime.Source_Code_Location) {
+TEMP_ALLOCATOR_GUARD :: #force_inline proc(collisions: []runtime.Allocator, loc := #caller_location) -> Temp_Allocator {
-	global_default_temp_allocator_index = (global_default_temp_allocator_index+1)%MAX_TEMP_ARENA_COUNT
+	assert(len(collisions) <= MAX_TEMP_ARENA_COLLISIONS, "Maximum collision count exceeded. MAX_TEMP_ARENA_COUNT must be increased!")
-	tmp := temp_allocator_temp_begin(loc)
+	good_arena: ^runtime.Arena
-	return tmp, loc
+	for i in 0..<MAX_TEMP_ARENA_COUNT {
+		good_arena = &global_default_temp_allocator_arenas[i]
+		for c in collisions {
+			if good_arena == c.data {
+				good_arena = nil
+			}
+		}
+		if good_arena != nil {
+			break
+		}
+	}
+	assert(good_arena != nil)
+	if good_arena.backing_allocator.procedure == nil {
+		good_arena.backing_allocator = heap_allocator()
+	}
+	tmp := runtime.arena_temp_begin(good_arena, loc)
+	return { good_arena, runtime.arena_allocator(good_arena), tmp, loc }
+}
+
+temp_allocator_begin :: runtime.arena_temp_begin
+temp_allocator_end :: runtime.arena_temp_end
+@(deferred_out=_temp_allocator_end)
+temp_allocator_scope :: proc(tmp: Temp_Allocator) -> (runtime.Arena_Temp) {
+	return temp_allocator_begin(tmp.arena)
+}
+@(private="file")
+_temp_allocator_end :: proc(tmp: runtime.Arena_Temp) {
+	temp_allocator_end(tmp)
 }
 
 @(init, private)

core/os/os2/dir.odin

@@ -2,6 +2,7 @@ package os2
 
 import "base:runtime"
 import "core:slice"
+import "core:strings"
 
 read_dir :: read_directory
 
@@ -18,12 +19,12 @@ read_directory :: proc(f: ^File, n: int, allocator: runtime.Allocator) -> (files
 		size = 100
 	}
 
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
 
 	it := read_directory_iterator_create(f)
 	defer _read_directory_iterator_destroy(&it)
 
-	dfi := make([dynamic]File_Info, 0, size, temp_allocator())
+	dfi := make([dynamic]File_Info, 0, size, temp_allocator)
 	defer if err != nil {
 		for fi in dfi {
 			file_info_delete(fi, allocator)
@@ -194,28 +195,54 @@ read_directory_iterator :: proc(it: ^Read_Directory_Iterator) -> (fi: File_Info,
 }
 
 // Recursively copies a directory to `dst` from `src`
-copy_directory :: proc(dst, src: string, dst_perm := 0o755) -> Error {
+copy_directory_all :: proc(dst, src: string, dst_perm := 0o755) -> Error {
-	switch err := make_directory_all(dst, dst_perm); err {
+	when #defined(_copy_directory_all_native) {
-	case nil, .Exist:
+		return _copy_directory_all_native(dst, src, dst_perm)
-		// okay
+	} else {
-	case:
+		return _copy_directory_all(dst, src, dst_perm)
+	}
+}
+
+@(private)
+_copy_directory_all :: proc(dst, src: string, dst_perm := 0o755) -> Error {
+	err := make_directory(dst, dst_perm)
+	if err != nil && err != .Exist {
 		return err
 	}
 
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
 
-	file_infos := read_all_directory_by_path(src, temp_allocator()) or_return
+	abs_src := get_absolute_path(src, temp_allocator) or_return
-	for fi in file_infos {
+	abs_dst := get_absolute_path(dst, temp_allocator) or_return
-		TEMP_ALLOCATOR_GUARD()
 
-		dst_path := join_path({dst, fi.name}, temp_allocator()) or_return
+	dst_buf := make([dynamic]byte, 0, len(abs_dst) + 256, temp_allocator) or_return
-		src_path := fi.fullpath
 
-		if fi.type == .Directory {
+	w: Walker
-			copy_directory(dst_path, src_path) or_return
+	walker_init_path(&w, src)
+	defer walker_destroy(&w)
+
+	for info in walker_walk(&w) {
+		_ = walker_error(&w) or_break
+
+		rel := strings.trim_prefix(info.fullpath, abs_src)
+
+		non_zero_resize(&dst_buf, 0)
+		reserve(&dst_buf, len(abs_dst) + len(Path_Separator_String) + len(rel)) or_return
+		append(&dst_buf, abs_dst)
+		append(&dst_buf, Path_Separator_String)
+		append(&dst_buf, rel)
+
+		if info.type == .Directory {
+			err = make_directory(string(dst_buf[:]), dst_perm)
+			if err != nil && err != .Exist {
+				return err
+			}
 		} else {
-			copy_file(dst_path, src_path) or_return
+			copy_file(string(dst_buf[:]), info.fullpath) or_return
 		}
 	}
+
+	_ = walker_error(&w) or_return
+
 	return nil
 }

core/os/os2/dir_linux.odin

@@ -78,7 +78,8 @@ _read_directory_iterator :: proc(it: ^Read_Directory_Iterator) -> (fi: File_Info
 	it.impl.prev_fi = fi
 
 	if err != nil {
-		path, _ := _get_full_path(entry_fd, temp_allocator())
+		temp_allocator := TEMP_ALLOCATOR_GUARD({})
+		path, _ := _get_full_path(entry_fd, temp_allocator)
 		read_directory_iterator_set_error(it, path, err)
 	}
 

core/os/os2/dir_posix_darwin.odin

@@ -0,0 +1,17 @@
+#+private
+package os2
+
+import "core:sys/darwin"
+
+_copy_directory_all_native :: proc(dst, src: string, dst_perm := 0o755) -> (err: Error) {
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
+
+	csrc := clone_to_cstring(src, temp_allocator) or_return
+	cdst := clone_to_cstring(dst, temp_allocator) or_return
+
+	if darwin.copyfile(csrc, cdst, nil, darwin.COPYFILE_ALL + {.RECURSIVE}) < 0 {
+		err = _get_platform_error()
+	}
+
+	return
+}

core/os/os2/dir_windows.odin

@@ -14,7 +14,9 @@ find_data_to_file_info :: proc(base_path: string, d: ^win32.WIN32_FIND_DATAW, al
 	if d.cFileName[0] == '.' && d.cFileName[1] == '.' && d.cFileName[2] == 0 {
 		return
 	}
-	path := concatenate({base_path, `\`, win32_utf16_to_utf8(d.cFileName[:], temp_allocator()) or_else ""}, allocator) or_return
+
+	temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
+	path := concatenate({base_path, `\`, win32_wstring_to_utf8(raw_data(d.cFileName[:]), temp_allocator) or_else ""}, allocator) or_return
 
 	handle := win32.HANDLE(_open_internal(path, {.Read}, 0o666) or_else 0)
 	defer win32.CloseHandle(handle)
@@ -49,8 +51,6 @@ Read_Directory_Iterator_Impl :: struct {
 
 @(require_results)
 _read_directory_iterator :: proc(it: ^Read_Directory_Iterator) -> (fi: File_Info, index: int, ok: bool) {
-	TEMP_ALLOCATOR_GUARD()
-
 	for !it.impl.no_more_files {
 		err: Error
 		file_info_delete(it.impl.prev_fi, file_allocator())
@@ -116,9 +116,9 @@ _read_directory_iterator_init :: proc(it: ^Read_Directory_Iterator, f: ^File) {
 		wpath = impl.wname[:i]
 	}
 
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
 
-	wpath_search := make([]u16, len(wpath)+3, temp_allocator())
+	wpath_search := make([]u16, len(wpath)+3, temp_allocator)
 	copy(wpath_search, wpath)
 	wpath_search[len(wpath)+0] = '\\'
 	wpath_search[len(wpath)+1] = '*'

core/os/os2/env_posix.odin

@@ -12,9 +12,9 @@ _lookup_env :: proc(key: string, allocator: runtime.Allocator) -> (value: string
 		return
 	}
 
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
 
-	ckey := strings.clone_to_cstring(key, temp_allocator())
+	ckey := strings.clone_to_cstring(key, temp_allocator)
 	cval := posix.getenv(ckey)
 	if cval == nil {
 		return
@@ -27,10 +27,10 @@ _lookup_env :: proc(key: string, allocator: runtime.Allocator) -> (value: string
 }
 
 _set_env :: proc(key, value: string) -> (err: Error) {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
 
-	ckey := strings.clone_to_cstring(key, temp_allocator()) or_return
+	ckey := strings.clone_to_cstring(key, temp_allocator) or_return
-	cval := strings.clone_to_cstring(key, temp_allocator()) or_return
+	cval := strings.clone_to_cstring(value, temp_allocator) or_return
 
 	if posix.setenv(ckey, cval, true) != nil {
 		err = _get_platform_error_from_errno()
@@ -39,9 +39,9 @@ _set_env :: proc(key, value: string) -> (err: Error) {
 }
 
 _unset_env :: proc(key: string) -> (ok: bool) {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
 
-	ckey := strings.clone_to_cstring(key, temp_allocator())
+	ckey := strings.clone_to_cstring(key, temp_allocator)
 
 	ok = posix.unsetenv(ckey) == .OK
 	return

core/os/os2/env_wasi.odin

@@ -39,9 +39,9 @@ build_env :: proc() -> (err: Error) {
 	g_env_buf = make([]byte, size_of_envs, file_allocator()) or_return
 	defer if err != nil { delete(g_env_buf, file_allocator()) }
 
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
 
-	envs := make([]cstring, num_envs, temp_allocator()) or_return
+	envs := make([]cstring, num_envs, temp_allocator) or_return
 
 	_err = wasi.environ_get(raw_data(envs), raw_data(g_env_buf))
 	if _err != nil {

core/os/os2/env_windows.odin

@@ -8,8 +8,8 @@ _lookup_env :: proc(key: string, allocator: runtime.Allocator) -> (value: string
 	if key == "" {
 		return
 	}
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
-	wkey, _ := win32_utf8_to_wstring(key, temp_allocator())
+	wkey, _ := win32_utf8_to_wstring(key, temp_allocator)
 
 	n := win32.GetEnvironmentVariableW(wkey, nil, 0)
 	if n == 0 {
@@ -20,7 +20,7 @@ _lookup_env :: proc(key: string, allocator: runtime.Allocator) -> (value: string
 		return "", true
 	}
 
-	b := make([]u16, n+1, temp_allocator())
+	b := make([]u16, n+1, temp_allocator)
 
 	n = win32.GetEnvironmentVariableW(wkey, raw_data(b), u32(len(b)))
 	if n == 0 {
@@ -37,9 +37,9 @@ _lookup_env :: proc(key: string, allocator: runtime.Allocator) -> (value: string
 }
 
 _set_env :: proc(key, value: string) -> Error {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	k := win32_utf8_to_wstring(key,   temp_allocator()) or_return
+	k := win32_utf8_to_wstring(key,   temp_allocator) or_return
-	v := win32_utf8_to_wstring(value, temp_allocator()) or_return
+	v := win32_utf8_to_wstring(value, temp_allocator) or_return
 
 	if !win32.SetEnvironmentVariableW(k, v) {
 		return _get_platform_error()
@@ -48,14 +48,14 @@ _set_env :: proc(key, value: string) -> Error {
 }
 
 _unset_env :: proc(key: string) -> bool {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	k, _ := win32_utf8_to_wstring(key, temp_allocator())
+	k, _ := win32_utf8_to_wstring(key, temp_allocator)
 	return bool(win32.SetEnvironmentVariableW(k, nil))
 }
 
 _clear_env :: proc() {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	envs, _ := environ(temp_allocator())
+	envs, _ := environ(temp_allocator)
 	for env in envs {
 		for j in 1..<len(env) {
 			if env[j] == '=' {

core/os/os2/errors.odin

@@ -27,6 +27,9 @@ General_Error :: enum u32 {
 
 	Pattern_Has_Separator,
 
+	No_HOME_Variable,
+	Wordexp_Failed,
+
 	Unsupported,
 }
 
@@ -59,20 +62,22 @@ error_string :: proc(ferr: Error) -> string {
 	case General_Error:
 		switch e {
 		case .None: return ""
-		case .Permission_Denied: return "permission denied"
+		case .Permission_Denied:      return "permission denied"
-		case .Exist:             return "file already exists"
+		case .Exist:                  return "file already exists"
-		case .Not_Exist:         return "file does not exist"
+		case .Not_Exist:              return "file does not exist"
-		case .Closed:            return "file already closed"
+		case .Closed:                 return "file already closed"
-		case .Timeout:           return "i/o timeout"
+		case .Timeout:                return "i/o timeout"
-		case .Broken_Pipe:       return "Broken pipe"
+		case .Broken_Pipe:            return "Broken pipe"
-		case .No_Size:           return "file has no definite size"
+		case .No_Size:                return "file has no definite size"
-		case .Invalid_File:      return "invalid file"
+		case .Invalid_File:           return "invalid file"
-		case .Invalid_Dir:       return "invalid directory"
+		case .Invalid_Dir:            return "invalid directory"
-		case .Invalid_Path:      return "invalid path"
+		case .Invalid_Path:           return "invalid path"
-		case .Invalid_Callback:  return "invalid callback"
+		case .Invalid_Callback:       return "invalid callback"
-		case .Invalid_Command:   return "invalid command"
+		case .Invalid_Command:        return "invalid command"
-		case .Unsupported:       return "unsupported"
+		case .Unsupported:            return "unsupported"
-		case .Pattern_Has_Separator: return "pattern has separator"
+		case .Pattern_Has_Separator:  return "pattern has separator"
+		case .No_HOME_Variable:       return "no $HOME variable"
+		case .Wordexp_Failed:         return "posix.wordexp was unable to expand"
 		}
 	case io.Error:
 		switch e {
@@ -108,12 +113,12 @@ error_string :: proc(ferr: Error) -> string {
 }
 
 print_error :: proc(f: ^File, ferr: Error, msg: string) {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
 	err_str := error_string(ferr)
 
 	// msg + ": " + err_str + '\n'
 	length := len(msg) + 2 + len(err_str) + 1
-	buf := make([]u8, length, temp_allocator())
+	buf := make([]u8, length, temp_allocator)
 
 	copy(buf, msg)
 	buf[len(msg)] = ':'

core/os/os2/file.odin

@@ -291,8 +291,8 @@ exists :: proc(path: string) -> bool {
 
 @(require_results)
 is_file :: proc(path: string) -> bool {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	fi, err := stat(path, temp_allocator())
+	fi, err := stat(path, temp_allocator)
 	if err != nil {
 		return false
 	}
@@ -303,8 +303,8 @@ is_dir :: is_directory
 
 @(require_results)
 is_directory :: proc(path: string) -> bool {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	fi, err := stat(path, temp_allocator())
+	fi, err := stat(path, temp_allocator)
 	if err != nil {
 		return false
 	}
@@ -313,6 +313,15 @@ is_directory :: proc(path: string) -> bool {
 
 
 copy_file :: proc(dst_path, src_path: string) -> Error {
+	when #defined(_copy_file_native) {
+		return _copy_file_native(dst_path, src_path)
+	} else {
+		return _copy_file(dst_path, src_path)
+	}
+}
+
+@(private)
+_copy_file :: proc(dst_path, src_path: string) -> Error {
 	src := open(src_path) or_return
 	defer close(src)
 

core/os/os2/file_linux.odin

@@ -66,8 +66,8 @@ _standard_stream_init :: proc() {
 }
 
 _open :: proc(name: string, flags: File_Flags, perm: int) -> (f: ^File, err: Error) {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	name_cstr := temp_cstring(name) or_return
+	name_cstr := clone_to_cstring(name, temp_allocator) or_return
 
 	// Just default to using O_NOCTTY because needing to open a controlling
 	// terminal would be incredibly rare. This has no effect on files while
@@ -299,8 +299,8 @@ _truncate :: proc(f: ^File, size: i64) -> Error {
 }
 
 _remove :: proc(name: string) -> Error {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	name_cstr := temp_cstring(name) or_return
+	name_cstr := clone_to_cstring(name, temp_allocator) or_return
 
 	if fd, errno := linux.open(name_cstr, _OPENDIR_FLAGS + {.NOFOLLOW}); errno == .NONE {
 		linux.close(fd)
@@ -311,25 +311,25 @@ _remove :: proc(name: string) -> Error {
 }
 
 _rename :: proc(old_name, new_name: string) -> Error {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	old_name_cstr := temp_cstring(old_name) or_return
+	old_name_cstr := clone_to_cstring(old_name, temp_allocator) or_return
-	new_name_cstr := temp_cstring(new_name) or_return
+	new_name_cstr := clone_to_cstring(new_name, temp_allocator) or_return
 
 	return _get_platform_error(linux.rename(old_name_cstr, new_name_cstr))
 }
 
 _link :: proc(old_name, new_name: string) -> Error {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	old_name_cstr := temp_cstring(old_name) or_return
+	old_name_cstr := clone_to_cstring(old_name, temp_allocator) or_return
-	new_name_cstr := temp_cstring(new_name) or_return
+	new_name_cstr := clone_to_cstring(new_name, temp_allocator) or_return
 
 	return _get_platform_error(linux.link(old_name_cstr, new_name_cstr))
 }
 
 _symlink :: proc(old_name, new_name: string) -> Error {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	old_name_cstr := temp_cstring(old_name) or_return
+	old_name_cstr := clone_to_cstring(old_name, temp_allocator) or_return
-	new_name_cstr := temp_cstring(new_name) or_return
+	new_name_cstr := clone_to_cstring(new_name, temp_allocator) or_return
 	return _get_platform_error(linux.symlink(old_name_cstr, new_name_cstr))
 }
 
@@ -352,14 +352,14 @@ _read_link_cstr :: proc(name_cstr: cstring, allocator: runtime.Allocator) -> (st
 }
 
 _read_link :: proc(name: string, allocator: runtime.Allocator) -> (s: string, e: Error) {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
-	name_cstr := temp_cstring(name) or_return
+	name_cstr := clone_to_cstring(name, temp_allocator) or_return
 	return _read_link_cstr(name_cstr, allocator)
 }
 
 _chdir :: proc(name: string) -> Error {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	name_cstr := temp_cstring(name) or_return
+	name_cstr := clone_to_cstring(name, temp_allocator) or_return
 	return _get_platform_error(linux.chdir(name_cstr))
 }
 
@@ -369,8 +369,8 @@ _fchdir :: proc(f: ^File) -> Error {
 }
 
 _chmod :: proc(name: string, mode: int) -> Error {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	name_cstr := temp_cstring(name) or_return
+	name_cstr := clone_to_cstring(name, temp_allocator) or_return
 	return _get_platform_error(linux.chmod(name_cstr, transmute(linux.Mode)(u32(mode))))
 }
 
@@ -381,15 +381,15 @@ _fchmod :: proc(f: ^File, mode: int) -> Error {
 
 // NOTE: will throw error without super user priviledges
 _chown :: proc(name: string, uid, gid: int) -> Error {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	name_cstr := temp_cstring(name) or_return
+	name_cstr := clone_to_cstring(name, temp_allocator) or_return
 	return _get_platform_error(linux.chown(name_cstr, linux.Uid(uid), linux.Gid(gid)))
 }
 
 // NOTE: will throw error without super user priviledges
 _lchown :: proc(name: string, uid, gid: int) -> Error {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	name_cstr := temp_cstring(name) or_return
+	name_cstr := clone_to_cstring(name, temp_allocator) or_return
 	return _get_platform_error(linux.lchown(name_cstr, linux.Uid(uid), linux.Gid(gid)))
 }
 
@@ -400,8 +400,8 @@ _fchown :: proc(f: ^File, uid, gid: int) -> Error {
 }
 
 _chtimes :: proc(name: string, atime, mtime: time.Time) -> Error {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	name_cstr := temp_cstring(name) or_return
+	name_cstr := clone_to_cstring(name, temp_allocator) or_return
 	times := [2]linux.Time_Spec {
 		{
 			uint(atime._nsec) / uint(time.Second),
@@ -431,8 +431,8 @@ _fchtimes :: proc(f: ^File, atime, mtime: time.Time) -> Error {
 }
 
 _exists :: proc(name: string) -> bool {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	name_cstr, _ := temp_cstring(name)
+	name_cstr, _ := clone_to_cstring(name, temp_allocator)
 	return linux.access(name_cstr, linux.F_OK) == .NONE
 }
 
@@ -440,8 +440,8 @@ _exists :: proc(name: string) -> bool {
 _read_entire_pseudo_file :: proc { _read_entire_pseudo_file_string, _read_entire_pseudo_file_cstring }
 
 _read_entire_pseudo_file_string :: proc(name: string, allocator: runtime.Allocator) -> (b: []u8, e: Error) {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
-	name_cstr := clone_to_cstring(name, temp_allocator()) or_return
+	name_cstr := clone_to_cstring(name, temp_allocator) or_return
 	return _read_entire_pseudo_file_cstring(name_cstr, allocator)
 }
 

core/os/os2/file_posix.odin

@@ -69,8 +69,8 @@ _open :: proc(name: string, flags: File_Flags, perm: int) -> (f: ^File, err: Err
 	if .Trunc       in flags { sys_flags += {.TRUNC} }
 	if .Inheritable in flags { sys_flags -= {.CLOEXEC} }
 
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	cname := temp_cstring(name)
+	cname := clone_to_cstring(name, temp_allocator) or_return
 
 	fd := posix.open(cname, sys_flags, transmute(posix.mode_t)posix._mode_t(perm))
 	if fd < 0 {
@@ -183,39 +183,39 @@ _truncate :: proc(f: ^File, size: i64) -> Error {
 	return nil
 }
 
-_remove :: proc(name: string) -> Error {
+_remove :: proc(name: string) -> (err: Error) {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	cname := temp_cstring(name)
+	cname := clone_to_cstring(name, temp_allocator) or_return
 	if posix.remove(cname) != 0 {
 		return _get_platform_error()
 	}
 	return nil
 }
 
-_rename :: proc(old_path, new_path: string) -> Error {
+_rename :: proc(old_path, new_path: string) -> (err: Error) {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	cold := temp_cstring(old_path)
+	cold := clone_to_cstring(old_path, temp_allocator) or_return
-	cnew := temp_cstring(new_path)
+	cnew := clone_to_cstring(new_path, temp_allocator) or_return
 	if posix.rename(cold, cnew) != 0 {
 		return _get_platform_error()
 	}
 	return nil
 }
 
-_link :: proc(old_name, new_name: string) -> Error {
+_link :: proc(old_name, new_name: string) -> (err: Error) {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	cold := temp_cstring(old_name)
+	cold := clone_to_cstring(old_name, temp_allocator) or_return
-	cnew := temp_cstring(new_name)
+	cnew := clone_to_cstring(new_name, temp_allocator) or_return
 	if posix.link(cold, cnew) != .OK {
 		return _get_platform_error()
 	}
 	return nil
 }
 
-_symlink :: proc(old_name, new_name: string) -> Error {
+_symlink :: proc(old_name, new_name: string) -> (err: Error) {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	cold := temp_cstring(old_name)
+	cold := clone_to_cstring(old_name, temp_allocator) or_return
-	cnew := temp_cstring(new_name)
+	cnew := clone_to_cstring(new_name, temp_allocator) or_return
 	if posix.symlink(cold, cnew) != .OK {
 		return _get_platform_error()
 	}
@@ -223,8 +223,8 @@ _symlink :: proc(old_name, new_name: string) -> Error {
 }
 
 _read_link :: proc(name: string, allocator: runtime.Allocator) -> (s: string, err: Error) {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
-	cname := temp_cstring(name)
+	cname := clone_to_cstring(name, temp_allocator) or_return
 
 	buf: [dynamic]byte
 	buf.allocator = allocator
@@ -268,9 +268,9 @@ _read_link :: proc(name: string, allocator: runtime.Allocator) -> (s: string, er
 	}
 }
 
-_chdir :: proc(name: string) -> Error {
+_chdir :: proc(name: string) -> (err: Error) {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	cname := temp_cstring(name)
+	cname := clone_to_cstring(name, temp_allocator) or_return
 	if posix.chdir(cname) != .OK {
 		return _get_platform_error()
 	}
@@ -291,9 +291,9 @@ _fchmod :: proc(f: ^File, mode: int) -> Error {
 	return nil
 }
 
-_chmod :: proc(name: string, mode: int) -> Error {
+_chmod :: proc(name: string, mode: int) -> (err: Error) {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	cname := temp_cstring(name)
+	cname := clone_to_cstring(name, temp_allocator) or_return
 	if posix.chmod(cname, transmute(posix.mode_t)posix._mode_t(mode)) != .OK {
 		return _get_platform_error()
 	}
@@ -307,9 +307,9 @@ _fchown :: proc(f: ^File, uid, gid: int) -> Error {
 	return nil
 }
 
-_chown :: proc(name: string, uid, gid: int) -> Error {
+_chown :: proc(name: string, uid, gid: int) -> (err: Error) {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	cname := temp_cstring(name)
+	cname := clone_to_cstring(name, temp_allocator) or_return
 	if posix.chown(cname, posix.uid_t(uid), posix.gid_t(gid)) != .OK {
 		return _get_platform_error()
 	}
@@ -317,15 +317,15 @@ _chown :: proc(name: string, uid, gid: int) -> Error {
 }
 
 _lchown :: proc(name: string, uid, gid: int) -> Error {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	cname := temp_cstring(name)
+	cname := clone_to_cstring(name, temp_allocator) or_return
 	if posix.lchown(cname, posix.uid_t(uid), posix.gid_t(gid)) != .OK {
 		return _get_platform_error()
 	}
 	return nil
 }
 
-_chtimes :: proc(name: string, atime, mtime: time.Time) -> Error {
+_chtimes :: proc(name: string, atime, mtime: time.Time) -> (err: Error) {
 	times := [2]posix.timeval{
 		{
 			tv_sec  = posix.time_t(atime._nsec/1e9),           /* seconds */
@@ -337,8 +337,8 @@ _chtimes :: proc(name: string, atime, mtime: time.Time) -> Error {
 		},
 	}
 
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	cname := temp_cstring(name)
+	cname := clone_to_cstring(name, temp_allocator) or_return
 
 	if posix.utimes(cname, &times) != .OK {
 		return _get_platform_error()
@@ -365,8 +365,9 @@ _fchtimes :: proc(f: ^File, atime, mtime: time.Time) -> Error {
 }
 
 _exists :: proc(path: string) -> bool {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	cpath := temp_cstring(path)
+	cpath, err := clone_to_cstring(path, temp_allocator)
+	if err != nil { return false }
 	return posix.access(cpath) == .OK
 }
 

core/os/os2/file_posix_darwin.odin

@@ -3,6 +3,7 @@ package os2
 
 import "base:runtime"
 
+import "core:sys/darwin"
 import "core:sys/posix"
 
 _posix_absolute_path :: proc(fd: posix.FD, name: string, allocator: runtime.Allocator) -> (path: cstring, err: Error) {
@@ -16,3 +17,30 @@ _posix_absolute_path :: proc(fd: posix.FD, name: string, allocator: runtime.Allo
 
 	return clone_to_cstring(string(cstring(&buf[0])), allocator)
 }
+
+_copy_file_native :: proc(dst_path, src_path: string) -> (err: Error) {
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
+
+	csrc := clone_to_cstring(src_path, temp_allocator) or_return
+	cdst := clone_to_cstring(dst_path, temp_allocator) or_return
+
+	// Disallow directories, as specified by the generic implementation.
+
+	stat: posix.stat_t
+	if posix.stat(csrc, &stat) != .OK {
+		err = _get_platform_error()
+		return
+	}
+
+	if posix.S_ISDIR(stat.st_mode) {
+		err = .Invalid_File
+		return
+	}
+
+	ret := darwin.copyfile(csrc, cdst, nil, darwin.COPYFILE_ALL)
+	if ret < 0 {
+		err = _get_platform_error()
+	}
+
+	return
+}

core/os/os2/file_posix_other.odin

@@ -7,8 +7,8 @@ import "base:runtime"
 import "core:sys/posix"
 
 _posix_absolute_path :: proc(fd: posix.FD, name: string, allocator: runtime.Allocator) -> (path: cstring, err: Error) {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
-	cname := temp_cstring(name)
+	cname := clone_to_cstring(name, temp_allocator)
 
 	buf: [posix.PATH_MAX]byte
 	path = posix.realpath(cname, raw_data(buf[:]))

core/os/os2/file_util.odin

@@ -59,7 +59,7 @@ write_encoded_rune :: proc(f: ^File, r: rune) -> (n: int, err: Error) {
 		if r < 32 {
 			if wrap(write_string(f, "\\x"), &n, &err) { return }
 			b: [2]byte
-			s := strconv.append_bits(b[:], u64(r), 16, true, 64, strconv.digits, nil)
+			s := strconv.write_bits(b[:], u64(r), 16, true, 64, strconv.digits, nil)
 			switch len(s) {
 			case 0: if wrap(write_string(f, "00"), &n, &err) { return }
 			case 1: if wrap(write_rune(f, '0'), &n, &err)    { return }

core/os/os2/file_windows.odin

@@ -86,9 +86,9 @@ _open_internal :: proc(name: string, flags: File_Flags, perm: int) -> (handle: u
 		err = .Not_Exist
 		return
 	}
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
 
-	path := _fix_long_path(name, temp_allocator()) or_return
+	path := _fix_long_path(name, temp_allocator) or_return
 	access: u32
 	switch flags & {.Read, .Write} {
 	case {.Read}:         access = win32.FILE_GENERIC_READ
@@ -508,11 +508,12 @@ _file_size :: proc(f: ^File_Impl) -> (n: i64, err: Error) {
 	length: win32.LARGE_INTEGER
 	handle := _handle(&f.file)
 	if f.kind == .Pipe {
-		bytesAvail: u32
+		bytes_available: u32
-		if win32.PeekNamedPipe(handle, nil, 0, nil, &bytesAvail, nil) {
+		if win32.PeekNamedPipe(handle, nil, 0, nil, &bytes_available, nil) {
-			return i64(bytesAvail), nil
+			return i64(bytes_available), nil
 		} else {
-			return 0, .No_Size
+			err = _get_platform_error()
+			return
 		}
 	}
 	if !win32.GetFileSizeEx(handle, &length) {
@@ -556,8 +557,8 @@ _truncate :: proc(f: ^File, size: i64) -> Error {
 }
 
 _remove :: proc(name: string) -> Error {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	p := _fix_long_path(name, temp_allocator()) or_return
+	p := _fix_long_path(name, temp_allocator) or_return
 	err, err1: Error
 	if !win32.DeleteFileW(p) {
 		err = _get_platform_error()
@@ -594,9 +595,9 @@ _remove :: proc(name: string) -> Error {
 }
 
 _rename :: proc(old_path, new_path: string) -> Error {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	from := _fix_long_path(old_path, temp_allocator()) or_return
+	from := _fix_long_path(old_path, temp_allocator) or_return
-	to   := _fix_long_path(new_path, temp_allocator()) or_return
+	to   := _fix_long_path(new_path, temp_allocator) or_return
 	if win32.MoveFileExW(from, to, win32.MOVEFILE_REPLACE_EXISTING) {
 		return nil
 	}
@@ -605,9 +606,9 @@ _rename :: proc(old_path, new_path: string) -> Error {
 }
 
 _link :: proc(old_name, new_name: string) -> Error {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	o := _fix_long_path(old_name, temp_allocator()) or_return
+	o := _fix_long_path(old_name, temp_allocator) or_return
-	n := _fix_long_path(new_name, temp_allocator()) or_return
+	n := _fix_long_path(new_name, temp_allocator) or_return
 	if win32.CreateHardLinkW(n, o, nil) {
 		return nil
 	}
@@ -668,9 +669,9 @@ _normalize_link_path :: proc(p: []u16, allocator: runtime.Allocator) -> (str: st
 		return "", _get_platform_error()
 	}
 
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
 
-	buf := make([]u16, n+1, temp_allocator())
+	buf := make([]u16, n+1, temp_allocator)
 	n = win32.GetFinalPathNameByHandleW(handle, raw_data(buf), u32(len(buf)), win32.VOLUME_NAME_DOS)
 	if n == 0 {
 		return "", _get_platform_error()
@@ -694,9 +695,9 @@ _read_link :: proc(name: string, allocator: runtime.Allocator) -> (s: string, er
 	@thread_local
 	rdb_buf: [MAXIMUM_REPARSE_DATA_BUFFER_SIZE]byte
 
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
 
-	p      := _fix_long_path(name, temp_allocator()) or_return
+	p      := _fix_long_path(name, temp_allocator) or_return
 	handle := _open_sym_link(p) or_return
 	defer win32.CloseHandle(handle)
 
@@ -771,8 +772,8 @@ _fchown :: proc(f: ^File, uid, gid: int) -> Error {
 }
 
 _chdir :: proc(name: string) -> Error {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	p := _fix_long_path(name, temp_allocator()) or_return
+	p := _fix_long_path(name, temp_allocator) or_return
 	if !win32.SetCurrentDirectoryW(p) {
 		return _get_platform_error()
 	}
@@ -799,19 +800,11 @@ _chtimes :: proc(name: string, atime, mtime: time.Time) -> Error {
 	defer close(f)
 	return _fchtimes(f, atime, mtime)
 }
+
 _fchtimes :: proc(f: ^File, atime, mtime: time.Time) -> Error {
 	if f == nil || f.impl == nil {
 		return nil
 	}
-	d: win32.BY_HANDLE_FILE_INFORMATION
-	if !win32.GetFileInformationByHandle(_handle(f), &d) {
-		return _get_platform_error()
-	}
-
-	to_windows_time :: #force_inline proc(t: time.Time) -> win32.LARGE_INTEGER {
-		// a 64-bit value representing the number of 100-nanosecond intervals since January 1, 1601 (UTC)
-		return win32.LARGE_INTEGER(time.time_to_unix_nano(t) * 100 + 116444736000000000)
-	}
 
 	atime, mtime := atime, mtime
 	if time.time_to_unix_nano(atime) < time.time_to_unix_nano(mtime) {
@@ -819,17 +812,17 @@ _fchtimes :: proc(f: ^File, atime, mtime: time.Time) -> Error {
 	}
 
 	info: win32.FILE_BASIC_INFO
-	info.LastAccessTime = to_windows_time(atime)
+	info.LastAccessTime = time_as_filetime(atime)
-	info.LastWriteTime  = to_windows_time(mtime)
+	info.LastWriteTime  = time_as_filetime(mtime)
-	if !win32.SetFileInformationByHandle(_handle(f), .FileBasicInfo, &info, size_of(d)) {
+	if !win32.SetFileInformationByHandle(_handle(f), .FileBasicInfo, &info, size_of(info)) {
 		return _get_platform_error()
 	}
 	return nil
 }
 
 _exists :: proc(path: string) -> bool {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	wpath, _ := _fix_long_path(path, temp_allocator())
+	wpath, _ := _fix_long_path(path, temp_allocator)
 	attribs := win32.GetFileAttributesW(wpath)
 	return attribs != win32.INVALID_FILE_ATTRIBUTES
 }

core/os/os2/internal_util.odin

@@ -43,11 +43,6 @@ clone_to_cstring :: proc(s: string, allocator: runtime.Allocator) -> (res: cstri
 	return cstring(&buf[0]), nil
 }
 
-@(require_results)
-temp_cstring :: proc(s: string) -> (cstring, runtime.Allocator_Error) #optional_allocator_error {
-	return clone_to_cstring(s, temp_allocator())
-}
-
 @(require_results)
 string_from_null_terminated_bytes :: proc(b: []byte) -> (res: string) {
 	s := string(b)

core/os/os2/path.odin

@@ -119,11 +119,11 @@ clean_path :: proc(path: string, allocator: runtime.Allocator) -> (cleaned: stri
 		return strings.clone(".", allocator)
 	}
 
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
 
 	// The extra byte is to simplify appending path elements by letting the
 	// loop to end each with a separator. We'll trim the last one when we're done.
-	buffer := make([]u8, len(path) + 1, temp_allocator()) or_return
+	buffer := make([]u8, len(path) + 1, temp_allocator) or_return
 
 	// This is the only point where Windows and POSIX differ, as Windows has
 	// alphabet-based volumes for root paths.
@@ -326,8 +326,8 @@ For example, `join_path({"/home", "foo", "bar.txt"})` will result in `"/home/foo
 join_path :: proc(elems: []string, allocator: runtime.Allocator) -> (joined: string, err: Error) {
 	for e, i in elems {
 		if e != "" {
-			TEMP_ALLOCATOR_GUARD()
+			temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
-			p := strings.join(elems[i:], Path_Separator_String, temp_allocator()) or_return
+			p := strings.join(elems[i:], Path_Separator_String, temp_allocator) or_return
 			return clean_path(p, allocator)
 		}
 	}

core/os/os2/path_linux.odin

@@ -18,8 +18,8 @@ _is_path_separator :: proc(c: byte) -> bool {
 }
 
 _mkdir :: proc(path: string, perm: int) -> Error {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	path_cstr := temp_cstring(path) or_return
+	path_cstr := clone_to_cstring(path, temp_allocator) or_return
 	return _get_platform_error(linux.mkdir(path_cstr, transmute(linux.Mode)u32(perm)))
 }
 
@@ -52,9 +52,9 @@ _mkdir_all :: proc(path: string, perm: int) -> Error {
 		}
 		return _get_platform_error(errno)
 	}
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
 	// need something we can edit, and use to generate cstrings
-	path_bytes := make([]u8, len(path) + 1, temp_allocator())
+	path_bytes := make([]u8, len(path) + 1, temp_allocator)
 
 	// zero terminate the byte slice to make it a valid cstring
 	copy(path_bytes, path)
@@ -129,8 +129,8 @@ _remove_all :: proc(path: string) -> Error {
 		return nil
 	}
 
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	path_cstr := temp_cstring(path) or_return
+	path_cstr := clone_to_cstring(path, temp_allocator) or_return
 
 	fd, errno := linux.open(path_cstr, _OPENDIR_FLAGS)
 	#partial switch errno {
@@ -168,14 +168,16 @@ _get_working_directory :: proc(allocator: runtime.Allocator) -> (string, Error)
 }
 
 _set_working_directory :: proc(dir: string) -> Error {
-	dir_cstr := temp_cstring(dir) or_return
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
+
+	dir_cstr := clone_to_cstring(dir, temp_allocator) or_return
 	return _get_platform_error(linux.chdir(dir_cstr))
 }
 
 _get_executable_path :: proc(allocator: runtime.Allocator) -> (path: string, err: Error) {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
 
-	buf := make([dynamic]byte, 1024, temp_allocator()) or_return
+	buf := make([dynamic]byte, 1024, temp_allocator) or_return
 	for {
 		n, errno := linux.readlink("/proc/self/exe", buf[:])
 		if errno != .NONE {
@@ -205,3 +207,21 @@ _get_full_path :: proc(fd: linux.Fd, allocator: runtime.Allocator) -> (fullpath:
 	}
 	return
 }
+
+_get_absolute_path :: proc(path: string, allocator: runtime.Allocator) -> (absolute_path: string, err: Error) {
+	rel := path
+	if rel == "" {
+		rel = "."
+	}
+
+	temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
+
+	fd, errno := linux.open(clone_to_cstring(path, temp_allocator) or_return, {})
+	if errno != nil {
+		err = _get_platform_error(errno)
+		return
+	}
+	defer linux.close(fd)
+
+	return _get_full_path(fd, allocator)
+}

core/os/os2/path_netbsd.odin

@@ -5,9 +5,9 @@ import "base:runtime"
 import "core:sys/posix"
 
 _get_executable_path :: proc(allocator: runtime.Allocator) -> (path: string, err: Error) {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
 
-	buf := make([dynamic]byte, 1024, temp_allocator()) or_return
+	buf := make([dynamic]byte, 1024, temp_allocator) or_return
 	for {
 		n := posix.readlink("/proc/curproc/exe", raw_data(buf), len(buf))
 		if n < 0 {

core/os/os2/path_openbsd.odin

@@ -35,11 +35,11 @@ _get_executable_path :: proc(allocator: runtime.Allocator) -> (path: string, err
 		return real(arg, allocator)
 	}
 
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
 
-	buf := strings.builder_make(temp_allocator())
+	buf := strings.builder_make(temp_allocator)
 
-	paths := get_env("PATH", temp_allocator())
+	paths := get_env("PATH", temp_allocator)
 	for dir in strings.split_iterator(&paths, ":") {
 		strings.builder_reset(&buf)
 		strings.write_string(&buf, dir)

core/os/os2/path_posix.odin

@@ -14,9 +14,9 @@ _is_path_separator :: proc(c: byte) -> bool {
 	return c == _Path_Separator
 }
 
-_mkdir :: proc(name: string, perm: int) -> Error {
+_mkdir :: proc(name: string, perm: int) -> (err: Error) {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	cname := temp_cstring(name)
+	cname := clone_to_cstring(name, temp_allocator) or_return
 	if posix.mkdir(cname, transmute(posix.mode_t)posix._mode_t(perm)) != .OK {
 		return _get_platform_error()
 	}
@@ -28,13 +28,13 @@ _mkdir_all :: proc(path: string, perm: int) -> Error {
 		return .Invalid_Path
 	}
 
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
 
 	if exists(path) {
 		return .Exist
 	}
 
-	clean_path := clean_path(path, temp_allocator()) or_return
+	clean_path := clean_path(path, temp_allocator) or_return
 	return internal_mkdir_all(clean_path, perm)
 
 	internal_mkdir_all :: proc(path: string, perm: int) -> Error {
@@ -52,9 +52,9 @@ _mkdir_all :: proc(path: string, perm: int) -> Error {
 	}
 }
 
-_remove_all :: proc(path: string) -> Error {
+_remove_all :: proc(path: string) -> (err: Error) {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	cpath := temp_cstring(path)
+	cpath := clone_to_cstring(path, temp_allocator) or_return
 
 	dir := posix.opendir(cpath)
 	if dir == nil {
@@ -78,7 +78,7 @@ _remove_all :: proc(path: string) -> Error {
 			continue
 		}
 
-		fullpath, _ := concatenate({path, "/", string(cname), "\x00"}, temp_allocator())
+		fullpath, _ := concatenate({path, "/", string(cname), "\x00"}, temp_allocator)
 		if entry.d_type == .DIR {
 			_remove_all(fullpath[:len(fullpath)-1]) or_return
 		} else {
@@ -95,10 +95,10 @@ _remove_all :: proc(path: string) -> Error {
 }
 
 _get_working_directory :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
 
 	buf: [dynamic]byte
-	buf.allocator = temp_allocator()
+	buf.allocator = temp_allocator
 	size := uint(posix.PATH_MAX)
 
 	cwd: cstring
@@ -116,10 +116,27 @@ _get_working_directory :: proc(allocator: runtime.Allocator) -> (dir: string, er
 }
 
 _set_working_directory :: proc(dir: string) -> (err: Error) {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	cdir := temp_cstring(dir)
+	cdir := clone_to_cstring(dir, temp_allocator) or_return
 	if posix.chdir(cdir) != .OK {
 		err = _get_platform_error()
 	}
 	return
 }
+
+_get_absolute_path :: proc(path: string, allocator: runtime.Allocator) -> (absolute_path: string, err: Error) {
+	rel := path
+	if rel == "" {
+		rel = "."
+	}
+	temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
+	rel_cstr := clone_to_cstring(rel, temp_allocator) or_return
+	path_ptr := posix.realpath(rel_cstr, nil)
+	if path_ptr == nil {
+		return "", Platform_Error(posix.errno())
+	}
+	defer posix.free(path_ptr)
+
+	path_str := clone_string(string(path_ptr), allocator) or_return
+	return path_str, nil
+}

core/os/os2/path_posixfs.odin

@@ -4,10 +4,6 @@ package os2
 
 // This implementation is for all systems that have POSIX-compliant filesystem paths.
 
-import "base:runtime"
-import "core:strings"
-import "core:sys/posix"
-
 _are_paths_identical :: proc(a, b: string) -> (identical: bool) {
 	return a == b
 }
@@ -26,23 +22,6 @@ _is_absolute_path :: proc(path: string) -> bool {
 	return len(path) > 0 && _is_path_separator(path[0])
 }
 
-_get_absolute_path :: proc(path: string, allocator: runtime.Allocator) -> (absolute_path: string, err: Error) {
-	rel := path
-	if rel == "" {
-		rel = "."
-	}
-	TEMP_ALLOCATOR_GUARD()
-	rel_cstr := strings.clone_to_cstring(rel, temp_allocator())
-	path_ptr := posix.realpath(rel_cstr, nil)
-	if path_ptr == nil {
-		return "", Platform_Error(posix.errno())
-	}
-	defer posix.free(path_ptr)
-
-	path_str := strings.clone(string(path_ptr), allocator)
-	return path_str, nil
-}
-
 _get_relative_path_handle_start :: proc(base, target: string) -> bool {
 	base_rooted   := len(base)   > 0 && _is_path_separator(base[0])
 	target_rooted := len(target) > 0 && _is_path_separator(target[0])

core/os/os2/path_wasi.odin

@@ -28,13 +28,13 @@ _mkdir_all :: proc(path: string, perm: int) -> Error {
 		return .Invalid_Path
 	}
 
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
 
 	if exists(path) {
 		return .Exist
 	}
 
-	clean_path := clean_path(path, temp_allocator())
+	clean_path := clean_path(path, temp_allocator)
 	return internal_mkdir_all(clean_path)
 
 	internal_mkdir_all :: proc(path: string) -> Error {

core/os/os2/path_windows.odin

@@ -14,8 +14,8 @@ _is_path_separator :: proc(c: byte) -> bool {
 }
 
 _mkdir :: proc(name: string, perm: int) -> Error {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	if !win32.CreateDirectoryW(_fix_long_path(name, temp_allocator()) or_return, nil) {
+	if !win32.CreateDirectoryW(_fix_long_path(name, temp_allocator) or_return, nil) {
 		return _get_platform_error()
 	}
 	return nil
@@ -33,9 +33,9 @@ _mkdir_all :: proc(path: string, perm: int) -> Error {
 		return p, false, nil
 	}
 
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
 
-	dir_stat, err := stat(path, temp_allocator())
+	dir_stat, err := stat(path, temp_allocator)
 	if err == nil {
 		if dir_stat.type == .Directory {
 			return nil
@@ -63,7 +63,7 @@ _mkdir_all :: proc(path: string, perm: int) -> Error {
 
 	err = mkdir(path, perm)
 	if err != nil {
-		new_dir_stat, err1 := lstat(path, temp_allocator())
+		new_dir_stat, err1 := lstat(path, temp_allocator)
 		if err1 == nil && new_dir_stat.type == .Directory {
 			return nil
 		}
@@ -82,8 +82,8 @@ _remove_all :: proc(path: string) -> Error {
 		return nil
 	}
 
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	dir := win32_utf8_to_wstring(path, temp_allocator()) or_return
+	dir := win32_utf8_to_wstring(path, temp_allocator) or_return
 
 	empty: [1]u16
 
@@ -109,10 +109,10 @@ _remove_all :: proc(path: string) -> Error {
 _get_working_directory :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
 	win32.AcquireSRWLockExclusive(&cwd_lock)
 
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
 
 	sz_utf16 := win32.GetCurrentDirectoryW(0, nil)
-	dir_buf_wstr := make([]u16, sz_utf16, temp_allocator()) or_return
+	dir_buf_wstr := make([]u16, sz_utf16, temp_allocator) or_return
 
 	sz_utf16 = win32.GetCurrentDirectoryW(win32.DWORD(len(dir_buf_wstr)), raw_data(dir_buf_wstr))
 	assert(int(sz_utf16)+1 == len(dir_buf_wstr)) // the second time, it _excludes_ the NUL.
@@ -123,8 +123,8 @@ _get_working_directory :: proc(allocator: runtime.Allocator) -> (dir: string, er
 }
 
 _set_working_directory :: proc(dir: string) -> (err: Error) {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	wstr := win32_utf8_to_wstring(dir, temp_allocator()) or_return
+	wstr := win32_utf8_to_wstring(dir, temp_allocator) or_return
 
 	win32.AcquireSRWLockExclusive(&cwd_lock)
 
@@ -138,9 +138,9 @@ _set_working_directory :: proc(dir: string) -> (err: Error) {
 }
 
 _get_executable_path :: proc(allocator: runtime.Allocator) -> (path: string, err: Error) {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
 
-	buf := make([dynamic]u16, 512, temp_allocator()) or_return
+	buf := make([dynamic]u16, 512, temp_allocator) or_return
 	for {
 		ret := win32.GetModuleFileNameW(nil, raw_data(buf), win32.DWORD(len(buf)))
 		if ret == 0 {
@@ -187,7 +187,6 @@ init_long_path_support :: proc() {
 	if value == 1 {
 		can_use_long_paths = true
 	}
-
 }
 
 @(require_results)
@@ -222,10 +221,10 @@ _fix_long_path_internal :: proc(path: string) -> string {
 		return path
 	}
 
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
 
 	PREFIX :: `\\?`
-	path_buf := make([]byte, len(PREFIX)+len(path)+1, temp_allocator())
+	path_buf := make([]byte, len(PREFIX)+len(path)+1, temp_allocator)
 	copy(path_buf, PREFIX)
 	n := len(path)
 	r, w := 0, len(PREFIX)
@@ -271,6 +270,11 @@ _clean_path_handle_start :: proc(path: string, buffer: []u8) -> (rooted: bool, s
 			start += 1
 		}
 		copy(buffer, path[:start])
+		for n in 0..<start {
+			if _is_path_separator(buffer[n]) {
+				buffer[n] = _Path_Separator
+			}
+		}
 	}
 	return
 }
@@ -297,14 +301,14 @@ _get_absolute_path :: proc(path: string, allocator: runtime.Allocator) -> (absol
 	if rel == "" {
 		rel = "."
 	}
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
-	rel_utf16 := win32.utf8_to_utf16(rel, temp_allocator())
+	rel_utf16 := win32.utf8_to_utf16(rel, temp_allocator)
 	n := win32.GetFullPathNameW(raw_data(rel_utf16), 0, nil, nil)
 	if n == 0 {
 		return "", Platform_Error(win32.GetLastError())
 	}
 
-	buf := make([]u16, n, temp_allocator()) or_return
+	buf := make([]u16, n, temp_allocator) or_return
 	n = win32.GetFullPathNameW(raw_data(rel_utf16), u32(n), raw_data(buf), nil)
 	if n == 0 {
 		return "", Platform_Error(win32.GetLastError())

core/os/os2/process.odin

@@ -264,7 +264,7 @@ specific process, even after it has died.
 **Note(linux)**: The `handle` will be referring to pidfd.
 */
 Process :: struct {
-	pid: int,
+	pid:    int,
 	handle: uintptr,
 }
 
@@ -290,21 +290,10 @@ process_open :: proc(pid: int, flags := Process_Open_Flags {}) -> (Process, Erro
 	return _process_open(pid, flags)
 }
 
-
-/*
-OS-specific process attributes.
-*/
-Process_Attributes :: struct {
-	sys_attr: _Sys_Process_Attributes,
-}
-
 /*
 	The description of how a process should be created.
 */
 Process_Desc :: struct {
-	// OS-specific attributes.
-	sys_attr: Process_Attributes,
-
 	// The working directory of the process. If the string has length 0, the
 	// working directory is assumed to be the current working directory of the
 	// current process.

core/os/os2/process_linux.odin

@@ -50,7 +50,7 @@ _get_ppid :: proc() -> int {
 
 @(private="package")
 _process_list :: proc(allocator: runtime.Allocator) -> (list: []int, err: Error) {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
 
 	dir_fd, errno := linux.open("/proc/", _OPENDIR_FLAGS)
 	#partial switch errno {
@@ -68,9 +68,9 @@ _process_list :: proc(allocator: runtime.Allocator) -> (list: []int, err: Error)
 	}
 	defer linux.close(dir_fd)
 
-	dynamic_list := make([dynamic]int, temp_allocator()) or_return
+	dynamic_list := make([dynamic]int, temp_allocator) or_return
 
-	buf := make([dynamic]u8, 128, 128, temp_allocator()) or_return
+	buf := make([dynamic]u8, 128, 128, temp_allocator) or_return
 	loop: for {
 		buflen: int
 		buflen, errno = linux.getdents(dir_fd, buf[:])
@@ -100,7 +100,7 @@ _process_list :: proc(allocator: runtime.Allocator) -> (list: []int, err: Error)
 
 @(private="package")
 _process_info_by_pid :: proc(pid: int, selection: Process_Info_Fields, allocator: runtime.Allocator) -> (info: Process_Info, err: Error) {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
 
 	info.pid = pid
 
@@ -126,7 +126,7 @@ _process_info_by_pid :: proc(pid: int, selection: Process_Info_Fields, allocator
 
 		passwd_bytes: []u8
 		passwd_err: Error
-		passwd_bytes, passwd_err = _read_entire_pseudo_file_cstring("/etc/passwd", temp_allocator())
+		passwd_bytes, passwd_err = _read_entire_pseudo_file_cstring("/etc/passwd", temp_allocator)
 		if passwd_err != nil {
 			err = passwd_err
 			break username_if
@@ -162,13 +162,13 @@ _process_info_by_pid :: proc(pid: int, selection: Process_Info_Fields, allocator
 		}
 	}
 
-	cmdline_if: if selection & {.Working_Dir, .Command_Line, .Command_Args, .Executable_Path} != {} {
+	cmdline_if: if selection & {.Working_Dir, .Command_Line, .Command_Args} != {} {
 		strings.builder_reset(&path_builder)
 		strings.write_string(&path_builder, "/proc/")
 		strings.write_int(&path_builder, pid)
 		strings.write_string(&path_builder, "/cmdline")
 
-		cmdline_bytes, cmdline_err := _read_entire_pseudo_file(strings.to_cstring(&path_builder) or_return, temp_allocator())
+		cmdline_bytes, cmdline_err := _read_entire_pseudo_file(strings.to_cstring(&path_builder) or_return, temp_allocator)
 		if cmdline_err != nil || len(cmdline_bytes) == 0 {
 			err = cmdline_err
 			break cmdline_if
@@ -178,18 +178,18 @@ _process_info_by_pid :: proc(pid: int, selection: Process_Info_Fields, allocator
 		terminator := strings.index_byte(cmdline, 0)
 		assert(terminator > 0)
 
-		command_line_exec := cmdline[:terminator]
+		// command_line_exec := cmdline[:terminator]
 
 		// Still need cwd if the execution on the command line is relative.
 		cwd: string
 		cwd_err: Error
-		if .Working_Dir in selection || (.Executable_Path in selection && command_line_exec[0] != '/') {
+		if .Working_Dir in selection {
 			strings.builder_reset(&path_builder)
 			strings.write_string(&path_builder, "/proc/")
 			strings.write_int(&path_builder, pid)
 			strings.write_string(&path_builder, "/cwd")
 
-			cwd, cwd_err = _read_link_cstr(strings.to_cstring(&path_builder) or_return, temp_allocator()) // allowed to fail
+			cwd, cwd_err = _read_link_cstr(strings.to_cstring(&path_builder) or_return, temp_allocator) // allowed to fail
 			if cwd_err == nil && .Working_Dir in selection {
 				info.working_dir = strings.clone(cwd, allocator) or_return
 				info.fields += {.Working_Dir}
@@ -199,18 +199,6 @@ _process_info_by_pid :: proc(pid: int, selection: Process_Info_Fields, allocator
 			}
 		}
 
-		if .Executable_Path in selection {
-			if cmdline[0] == '/' {
-				info.executable_path = strings.clone(cmdline[:terminator], allocator) or_return
-				info.fields += {.Executable_Path}
-			} else if cwd_err == nil {
-				info.executable_path = join_path({ cwd, cmdline[:terminator] }, allocator) or_return
-				info.fields += {.Executable_Path}
-			} else {
-				break cmdline_if
-			}
-		}
-
 		if selection & {.Command_Line, .Command_Args} != {} {
 			// skip to first arg
 			//cmdline = cmdline[terminator + 1:]
@@ -257,7 +245,7 @@ _process_info_by_pid :: proc(pid: int, selection: Process_Info_Fields, allocator
 		strings.write_int(&path_builder, pid)
 		strings.write_string(&path_builder, "/stat")
 
-		proc_stat_bytes, stat_err := _read_entire_pseudo_file(strings.to_cstring(&path_builder) or_return, temp_allocator())
+		proc_stat_bytes, stat_err := _read_entire_pseudo_file(strings.to_cstring(&path_builder) or_return, temp_allocator)
 		if stat_err != nil {
 			err = stat_err
 			break stat_if
@@ -296,7 +284,7 @@ _process_info_by_pid :: proc(pid: int, selection: Process_Info_Fields, allocator
 			Nice,
 			//... etc,
 		}
-		stat_fields := strings.split(stats, " ", temp_allocator()) or_return
+		stat_fields := strings.split(stats, " ", temp_allocator) or_return
 
 		if len(stat_fields) <= int(Fields.Nice) {
 			break stat_if
@@ -323,13 +311,37 @@ _process_info_by_pid :: proc(pid: int, selection: Process_Info_Fields, allocator
 		}
 	}
 
+	if .Executable_Path in selection {
+		/*
+		NOTE(Jeroen):
+
+		The old version returned the wrong executable path for things like `bash` or `sh`,
+		for whom `/proc/<pid>/cmdline` will just report "bash" or "sh",
+		resulting in misleading paths like `$PWD/sh`, even though that executable doesn't exist there.
+
+		Thanks to Yawning for suggesting `/proc/self/exe`.
+		*/
+
+		strings.builder_reset(&path_builder)
+		strings.write_string(&path_builder, "/proc/")
+		strings.write_int(&path_builder, pid)
+		strings.write_string(&path_builder, "/exe")
+
+		if exe_bytes, exe_err := _read_link(strings.to_string(path_builder), temp_allocator); exe_err == nil {
+			info.executable_path = strings.clone(string(exe_bytes), allocator) or_return
+			info.fields += {.Executable_Path}
+		} else {
+			err = exe_err
+		}
+	}
+
 	if .Environment in selection {
 		strings.builder_reset(&path_builder)
 		strings.write_string(&path_builder, "/proc/")
 		strings.write_int(&path_builder, pid)
 		strings.write_string(&path_builder, "/environ")
 
-		if env_bytes, env_err := _read_entire_pseudo_file(strings.to_cstring(&path_builder) or_return, temp_allocator()); env_err == nil {
+		if env_bytes, env_err := _read_entire_pseudo_file(strings.to_cstring(&path_builder) or_return, temp_allocator); env_err == nil {
 			env := string(env_bytes)
 
 			env_list := make([dynamic]string, allocator) or_return
@@ -378,12 +390,9 @@ _process_open :: proc(pid: int, _: Process_Open_Flags) -> (process: Process, err
 	return
 }
 
-@(private="package")
-_Sys_Process_Attributes :: struct {}
-
 @(private="package")
 _process_start :: proc(desc: Process_Desc) -> (process: Process, err: Error) {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
 
 	if len(desc.command) == 0 {
 		return process, .Invalid_Command
@@ -392,7 +401,7 @@ _process_start :: proc(desc: Process_Desc) -> (process: Process, err: Error) {
 	dir_fd := linux.AT_FDCWD
 	errno: linux.Errno
 	if desc.working_dir != "" {
-		dir_cstr := temp_cstring(desc.working_dir) or_return
+		dir_cstr := clone_to_cstring(desc.working_dir, temp_allocator) or_return
 		if dir_fd, errno = linux.open(dir_cstr, _OPENDIR_FLAGS); errno != .NONE {
 			return process, _get_platform_error(errno)
 		}
@@ -405,10 +414,10 @@ _process_start :: proc(desc: Process_Desc) -> (process: Process, err: Error) {
 	exe_path: cstring
 	executable_name := desc.command[0]
 	if strings.index_byte(executable_name, '/') < 0 {
-		path_env := get_env("PATH", temp_allocator())
+		path_env := get_env("PATH", temp_allocator)
-		path_dirs := split_path_list(path_env, temp_allocator()) or_return
+		path_dirs := split_path_list(path_env, temp_allocator) or_return
 
-		exe_builder := strings.builder_make(temp_allocator()) or_return
+		exe_builder := strings.builder_make(temp_allocator) or_return
 
 		found: bool
 		for dir in path_dirs {
@@ -435,7 +444,7 @@ _process_start :: proc(desc: Process_Desc) -> (process: Process, err: Error) {
 			}
 		}
 	} else {
-		exe_path = temp_cstring(executable_name) or_return
+		exe_path = clone_to_cstring(executable_name, temp_allocator) or_return
 		if linux.access(exe_path, linux.X_OK) != .NONE {
 			return process, .Not_Exist
 		}
@@ -443,20 +452,20 @@ _process_start :: proc(desc: Process_Desc) -> (process: Process, err: Error) {
 
 	// args and environment need to be a list of cstrings
 	// that are terminated by a nil pointer.
-	cargs := make([]cstring, len(desc.command) + 1, temp_allocator()) or_return
+	cargs := make([]cstring, len(desc.command) + 1, temp_allocator) or_return
 	for command, i in desc.command {
-		cargs[i] = temp_cstring(command) or_return
+		cargs[i] = clone_to_cstring(command, temp_allocator) or_return
 	}
 
 	// Use current process' environment if description didn't provide it.
 	env: [^]cstring
 	if desc.env == nil {
 		// take this process's current environment
-		env = raw_data(export_cstring_environment(temp_allocator()))
+		env = raw_data(export_cstring_environment(temp_allocator))
 	} else {
-		cenv := make([]cstring, len(desc.env) + 1, temp_allocator()) or_return
+		cenv := make([]cstring, len(desc.env) + 1, temp_allocator) or_return
 		for env, i in desc.env {
-			cenv[i] = temp_cstring(env) or_return
+			cenv[i] = clone_to_cstring(env, temp_allocator) or_return
 		}
 		env = &cenv[0]
 	}
@@ -584,7 +593,7 @@ _process_start :: proc(desc: Process_Desc) -> (process: Process, err: Error) {
 }
 
 _process_state_update_times :: proc(state: ^Process_State) -> (err: Error) {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
 
 	stat_path_buf: [48]u8
 	path_builder := strings.builder_from_bytes(stat_path_buf[:])
@@ -593,7 +602,7 @@ _process_state_update_times :: proc(state: ^Process_State) -> (err: Error) {
 	strings.write_string(&path_builder, "/stat")
 
 	stat_buf: []u8
-	stat_buf, err = _read_entire_pseudo_file(strings.to_cstring(&path_builder) or_return, temp_allocator())
+	stat_buf, err = _read_entire_pseudo_file(strings.to_cstring(&path_builder) or_return, temp_allocator)
 	if err != nil {
 		return
 	}

core/os/os2/process_posix.odin

@@ -46,22 +46,20 @@ _current_process_info :: proc(selection: Process_Info_Fields, allocator: runtime
 	return _process_info_by_pid(_get_pid(), selection, allocator)
 }
 
-_Sys_Process_Attributes :: struct {}
-
 _process_start :: proc(desc: Process_Desc) -> (process: Process, err: Error) {
 	if len(desc.command) == 0 {
 		err = .Invalid_Path
 		return
 	}
 
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
 
 	// search PATH if just a plain name is provided.
-	exe_builder := strings.builder_make(temp_allocator())
+	exe_builder := strings.builder_make(temp_allocator)
 	exe_name    := desc.command[0]
 	if strings.index_byte(exe_name, '/') < 0 {
-		path_env  := get_env("PATH", temp_allocator())
+		path_env  := get_env("PATH", temp_allocator)
-		path_dirs := split_path_list(path_env, temp_allocator()) or_return
+		path_dirs := split_path_list(path_env, temp_allocator) or_return
 
 		found: bool
 		for dir in path_dirs {
@@ -110,12 +108,12 @@ _process_start :: proc(desc: Process_Desc) -> (process: Process, err: Error) {
 	}
 
 	cwd: cstring; if desc.working_dir != "" {
-		cwd = temp_cstring(desc.working_dir)
+		cwd = clone_to_cstring(desc.working_dir, temp_allocator) or_return
 	}
 
-	cmd := make([]cstring, len(desc.command) + 1, temp_allocator())
+	cmd := make([]cstring, len(desc.command) + 1, temp_allocator)
 	for part, i in desc.command {
-		cmd[i] = temp_cstring(part)
+		cmd[i] = clone_to_cstring(part, temp_allocator) or_return
 	}
 
 	env: [^]cstring
@@ -123,9 +121,9 @@ _process_start :: proc(desc: Process_Desc) -> (process: Process, err: Error) {
 		// take this process's current environment
 		env = posix.environ
 	} else {
-		cenv := make([]cstring, len(desc.env) + 1, temp_allocator())
+		cenv := make([]cstring, len(desc.env) + 1, temp_allocator)
 		for env, i in desc.env {
-			cenv[i] = temp_cstring(env)
+			cenv[i] = clone_to_cstring(env, temp_allocator) or_return
 		}
 		env = raw_data(cenv)
 	}

core/os/os2/process_posix_darwin.odin

@@ -50,6 +50,7 @@ _process_info_by_pid :: proc(pid: int, selection: Process_Info_Fields, allocator
 	}
 
 
+	temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
 	info.pid = pid
 
 	// Thought on errors is: allocation failures return immediately (also why the non-allocation stuff is done first),
@@ -127,7 +128,7 @@ _process_info_by_pid :: proc(pid: int, selection: Process_Info_Fields, allocator
 			break args
 		}
 
-		buf := runtime.make_aligned([]byte, length, 4, temp_allocator())
+		buf := runtime.make_aligned([]byte, length, 4, temp_allocator)
 		if sysctl(raw_data(mib), 3, raw_data(buf), &length, nil, 0) != .OK {
 			if err == nil {
 				err = _get_platform_error()
@@ -239,9 +240,9 @@ _process_list :: proc(allocator: runtime.Allocator) -> (list: []int, err: Error)
 		return
 	}
 
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
 
-	buffer := make([]i32, ret, temp_allocator())
+	buffer := make([]i32, ret, temp_allocator)
 	ret = darwin.proc_listallpids(raw_data(buffer), ret*size_of(i32))
 	if ret < 0 {
 		err = _get_platform_error()

core/os/os2/process_wasi.odin

@@ -44,8 +44,6 @@ _current_process_info :: proc(selection: Process_Info_Fields, allocator: runtime
 	return
 }
 
-_Sys_Process_Attributes :: struct {}
-
 _process_start :: proc(desc: Process_Desc) -> (process: Process, err: Error) {
 	err = .Unsupported
 	return

core/os/os2/process_windows.odin

@@ -162,9 +162,10 @@ _process_info_by_pid :: proc(pid: int, selection: Process_Info_Fields, allocator
 		if err != nil {
 			break read_peb
 		}
+		temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
 		if selection >= {.Command_Line, .Command_Args} {
-			TEMP_ALLOCATOR_GUARD()
+			temp_allocator_scope(temp_allocator)
-			cmdline_w := make([]u16, process_params.CommandLine.Length, temp_allocator()) or_return
+			cmdline_w := make([]u16, process_params.CommandLine.Length, temp_allocator) or_return
 			_, err = read_memory_as_slice(ph, process_params.CommandLine.Buffer, cmdline_w)
 			if err != nil {
 				break read_peb
@@ -179,9 +180,9 @@ _process_info_by_pid :: proc(pid: int, selection: Process_Info_Fields, allocator
 			}
 		}
 		if .Environment in selection {
-			TEMP_ALLOCATOR_GUARD()
+			temp_allocator_scope(temp_allocator)
 			env_len := process_params.EnvironmentSize / 2
-			envs_w := make([]u16, env_len, temp_allocator()) or_return
+			envs_w := make([]u16, env_len, temp_allocator) or_return
 			_, err = read_memory_as_slice(ph, process_params.Environment, envs_w)
 			if err != nil {
 				break read_peb
@@ -190,8 +191,8 @@ _process_info_by_pid :: proc(pid: int, selection: Process_Info_Fields, allocator
 			info.fields += {.Environment}
 		}
 		if .Working_Dir in selection {
-			TEMP_ALLOCATOR_GUARD()
+			temp_allocator_scope(temp_allocator)
-			cwd_w := make([]u16, process_params.CurrentDirectoryPath.Length, temp_allocator()) or_return
+			cwd_w := make([]u16, process_params.CurrentDirectoryPath.Length, temp_allocator) or_return
 			_, err = read_memory_as_slice(ph, process_params.CurrentDirectoryPath.Buffer, cwd_w)
 			if err != nil {
 				break read_peb
@@ -272,9 +273,10 @@ _process_info_by_handle :: proc(process: Process, selection: Process_Info_Fields
 		if err != nil {
 			break read_peb
 		}
+		temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
 		if selection >= {.Command_Line, .Command_Args} {
-			TEMP_ALLOCATOR_GUARD()
+			temp_allocator_scope(temp_allocator)
-			cmdline_w := make([]u16, process_params.CommandLine.Length, temp_allocator()) or_return
+			cmdline_w := make([]u16, process_params.CommandLine.Length, temp_allocator) or_return
 			_, err = read_memory_as_slice(ph, process_params.CommandLine.Buffer, cmdline_w)
 			if err != nil {
 				break read_peb
@@ -289,9 +291,9 @@ _process_info_by_handle :: proc(process: Process, selection: Process_Info_Fields
 			}
 		}
 		if .Environment in selection {
-			TEMP_ALLOCATOR_GUARD()
+			temp_allocator_scope(temp_allocator)
 			env_len := process_params.EnvironmentSize / 2
-			envs_w := make([]u16, env_len, temp_allocator()) or_return
+			envs_w := make([]u16, env_len, temp_allocator) or_return
 			_, err = read_memory_as_slice(ph, process_params.Environment, envs_w)
 			if err != nil {
 				break read_peb
@@ -300,8 +302,8 @@ _process_info_by_handle :: proc(process: Process, selection: Process_Info_Fields
 			info.fields += {.Environment}
 		}
 		if .Working_Dir in selection {
-			TEMP_ALLOCATOR_GUARD()
+			temp_allocator_scope(temp_allocator)
-			cwd_w := make([]u16, process_params.CurrentDirectoryPath.Length, temp_allocator()) or_return
+			cwd_w := make([]u16, process_params.CurrentDirectoryPath.Length, temp_allocator) or_return
 			_, err = read_memory_as_slice(ph, process_params.CurrentDirectoryPath.Buffer, cwd_w)
 			if err != nil {
 				break read_peb
@@ -417,35 +419,64 @@ _process_open :: proc(pid: int, flags: Process_Open_Flags) -> (process: Process,
 	return
 }
 
-@(private="package")
-_Sys_Process_Attributes :: struct {}
-
 @(private="package")
 _process_start :: proc(desc: Process_Desc) -> (process: Process, err: Error) {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	command_line   := _build_command_line(desc.command, temp_allocator())
+	command_line   := _build_command_line(desc.command, temp_allocator)
-	command_line_w := win32_utf8_to_wstring(command_line, temp_allocator()) or_return
+	command_line_w := win32_utf8_to_wstring(command_line, temp_allocator) or_return
 	environment := desc.env
 	if desc.env == nil {
-		environment = environ(temp_allocator()) or_return
+		environment = environ(temp_allocator) or_return
 	}
-	environment_block   := _build_environment_block(environment, temp_allocator())
+	environment_block   := _build_environment_block(environment, temp_allocator)
-	environment_block_w := win32_utf8_to_utf16(environment_block, temp_allocator()) or_return
+	environment_block_w := win32_utf8_to_utf16(environment_block, temp_allocator) or_return
-	stderr_handle       := win32.GetStdHandle(win32.STD_ERROR_HANDLE)
-	stdout_handle       := win32.GetStdHandle(win32.STD_OUTPUT_HANDLE)
-	stdin_handle        := win32.GetStdHandle(win32.STD_INPUT_HANDLE)
 
-	if desc.stdout != nil {
+	stderr_handle: win32.HANDLE	
+	stdout_handle: win32.HANDLE	
+	stdin_handle:  win32.HANDLE	
+
+	null_handle: win32.HANDLE
+	if desc.stdout == nil || desc.stderr == nil || desc.stdin == nil {
+		null_handle = win32.CreateFileW(
+			win32.L("NUL"),
+			win32.GENERIC_READ|win32.GENERIC_WRITE,
+			win32.FILE_SHARE_READ|win32.FILE_SHARE_WRITE,
+			&win32.SECURITY_ATTRIBUTES{
+				nLength        = size_of(win32.SECURITY_ATTRIBUTES),
+				bInheritHandle = true,
+			},
+			win32.OPEN_EXISTING,
+			win32.FILE_ATTRIBUTE_NORMAL,
+			nil,
+		)
+		// Opening NUL should always succeed.
+		assert(null_handle != nil)
+	}
+	// NOTE(laytan): I believe it is fine to close this handle right after CreateProcess,
+	// and we don't have to hold onto this until the process exits.
+	defer if null_handle != nil {
+		win32.CloseHandle(null_handle)
+	}
+
+	if desc.stdout == nil {
+		stdout_handle = null_handle
+	} else {
 		stdout_handle = win32.HANDLE((^File_Impl)(desc.stdout.impl).fd)
 	}
-	if desc.stderr != nil {
+
+	if desc.stderr == nil {
+		stderr_handle = null_handle
+	} else {
 		stderr_handle = win32.HANDLE((^File_Impl)(desc.stderr.impl).fd)
 	}
-	if desc.stdin != nil {
+
+	if desc.stdin == nil {
+		stdin_handle = null_handle
+	} else {
 		stdin_handle = win32.HANDLE((^File_Impl)(desc.stdin.impl).fd)
 	}
 
-	working_dir_w := (win32_utf8_to_wstring(desc.working_dir, temp_allocator()) or_else nil) if len(desc.working_dir) > 0 else nil
+	working_dir_w := (win32_utf8_to_wstring(desc.working_dir, temp_allocator) or_else nil) if len(desc.working_dir) > 0 else nil
 	process_info: win32.PROCESS_INFORMATION
 	ok := win32.CreateProcessW(
 		nil,
@@ -583,7 +614,7 @@ _process_exe_by_pid :: proc(pid: int, allocator: runtime.Allocator) -> (exe_path
 }
 
 _get_process_user :: proc(process_handle: win32.HANDLE, allocator: runtime.Allocator) -> (full_username: string, err: Error) {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
 	token_handle: win32.HANDLE
 	if !win32.OpenProcessToken(process_handle, win32.TOKEN_QUERY, &token_handle) {
 		err = _get_platform_error()
@@ -598,7 +629,7 @@ _get_process_user :: proc(process_handle: win32.HANDLE, allocator: runtime.Alloc
 		}
 		err = nil
 	}
-	token_user := (^win32.TOKEN_USER)(raw_data(make([]u8, token_user_size, temp_allocator()) or_return))
+	token_user := (^win32.TOKEN_USER)(raw_data(make([]u8, token_user_size, temp_allocator) or_return))
 	if !win32.GetTokenInformation(token_handle, .TokenUser, token_user, token_user_size, &token_user_size) {
 		err = _get_platform_error()
 		return
@@ -614,8 +645,8 @@ _get_process_user :: proc(process_handle: win32.HANDLE, allocator: runtime.Alloc
 		err = _get_platform_error()
 		return
 	}
-	username := win32_utf16_to_utf8(username_w[:username_chrs], temp_allocator()) or_return
+	username := win32_utf16_to_utf8(username_w[:username_chrs], temp_allocator) or_return
-	domain   := win32_utf16_to_utf8(domain_w[:domain_chrs], temp_allocator()) or_return
+	domain   := win32_utf16_to_utf8(domain_w[:domain_chrs], temp_allocator) or_return
 	return strings.concatenate({domain, "\\", username}, allocator)
 }
 

core/os/os2/stat.odin

@@ -73,14 +73,14 @@ last_write_time_by_name :: modification_time_by_path
 
 @(require_results)
 modification_time :: proc(f: ^File) -> (time.Time, Error) {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	fi, err := fstat(f, temp_allocator())
+	fi, err := fstat(f, temp_allocator)
 	return fi.modification_time, err
 }
 
 @(require_results)
 modification_time_by_path :: proc(path: string) -> (time.Time, Error) {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	fi, err := stat(path, temp_allocator())
+	fi, err := stat(path, temp_allocator)
 	return fi.modification_time, err
 }

core/os/os2/stat_linux.odin

@@ -47,8 +47,8 @@ _fstat_internal :: proc(fd: linux.Fd, allocator: runtime.Allocator) -> (fi: File
 
 // NOTE: _stat and _lstat are using _fstat to avoid a race condition when populating fullpath
 _stat :: proc(name: string, allocator: runtime.Allocator) -> (fi: File_Info, err: Error) {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
-	name_cstr := temp_cstring(name) or_return
+	name_cstr := clone_to_cstring(name, temp_allocator) or_return
 
 	fd, errno := linux.open(name_cstr, {})
 	if errno != .NONE {
@@ -59,8 +59,8 @@ _stat :: proc(name: string, allocator: runtime.Allocator) -> (fi: File_Info, err
 }
 
 _lstat :: proc(name: string, allocator: runtime.Allocator) -> (fi: File_Info, err: Error) {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
-	name_cstr := temp_cstring(name) or_return
+	name_cstr := clone_to_cstring(name, temp_allocator) or_return
 
 	fd, errno := linux.open(name_cstr, {.PATH, .NOFOLLOW})
 	if errno != .NONE {

core/os/os2/stat_posix.odin

@@ -69,8 +69,8 @@ _stat :: proc(name: string, allocator: runtime.Allocator) -> (fi: File_Info, err
 		return
 	}
 
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
-	cname := temp_cstring(name) or_return
+	cname := clone_to_cstring(name, temp_allocator) or_return
 
 	fd := posix.open(cname, {})
 	if fd == -1 {
@@ -96,33 +96,34 @@ _lstat :: proc(name: string, allocator: runtime.Allocator) -> (fi: File_Info, er
 		return
 	}
 
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
 
 	// NOTE: can't use realpath or open (+ fcntl F_GETPATH) here because it tries to resolve symlinks.
 
 	// NOTE: This might not be correct when given "/symlink/foo.txt",
 	// you would want that to resolve "/symlink", but not resolve "foo.txt".
 
-	fullpath := clean_path(name, temp_allocator()) or_return
+	fullpath := clean_path(name, temp_allocator) or_return
 	assert(len(fullpath) > 0)
 	switch {
 	case fullpath[0] == '/':
 		// nothing.
 	case fullpath == ".":
-		fullpath = getwd(temp_allocator()) or_return
+		fullpath = getwd(temp_allocator) or_return
 	case len(fullpath) > 1 && fullpath[0] == '.' && fullpath[1] == '/':
 		fullpath = fullpath[2:]
 		fallthrough
 	case:
 		fullpath = concatenate({
-			getwd(temp_allocator()) or_return,
+			getwd(temp_allocator) or_return,
 			"/",
 			fullpath,
-		}, temp_allocator()) or_return
+		}, temp_allocator) or_return
 	}
 
 	stat: posix.stat_t
-	if posix.lstat(temp_cstring(fullpath), &stat) != .OK {
+	c_fullpath := clone_to_cstring(fullpath, temp_allocator) or_return
+	if posix.lstat(c_fullpath, &stat) != .OK {
 		err = _get_platform_error()
 		return
 	}

core/os/os2/stat_windows.odin

@@ -45,15 +45,15 @@ full_path_from_name :: proc(name: string, allocator: runtime.Allocator) -> (path
 		name = "."
 	}
 
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
 
-	p := win32_utf8_to_utf16(name, temp_allocator()) or_return
+	p := win32_utf8_to_utf16(name, temp_allocator) or_return
 
 	n := win32.GetFullPathNameW(raw_data(p), 0, nil, nil)
 	if n == 0 {
 		return "", _get_platform_error()
 	}
-	buf := make([]u16, n+1, temp_allocator())
+	buf := make([]u16, n+1, temp_allocator)
 	n = win32.GetFullPathNameW(raw_data(p), u32(len(buf)), raw_data(buf), nil)
 	if n == 0 {
 		return "", _get_platform_error()
@@ -65,9 +65,9 @@ internal_stat :: proc(name: string, create_file_attributes: u32, allocator: runt
 	if len(name) == 0 {
 		return {}, .Not_Exist
 	}
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
 
-	wname := _fix_long_path(name, temp_allocator()) or_return
+	wname := _fix_long_path(name, temp_allocator) or_return
 	fa: win32.WIN32_FILE_ATTRIBUTE_DATA
 	ok := win32.GetFileAttributesExW(wname, win32.GetFileExInfoStandard, &fa)
 	if ok && fa.dwFileAttributes & win32.FILE_ATTRIBUTE_REPARSE_POINT == 0 {
@@ -137,9 +137,9 @@ _cleanpath_from_handle :: proc(f: ^File, allocator: runtime.Allocator) -> (strin
 		return "", _get_platform_error()
 	}
 
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
 
-	buf := make([]u16, max(n, 260)+1, temp_allocator())
+	buf := make([]u16, max(n, 260)+1, temp_allocator)
 	n = win32.GetFinalPathNameByHandleW(h, raw_data(buf), u32(len(buf)), 0)
 	return _cleanpath_from_buf(buf[:n], allocator)
 }
@@ -155,9 +155,9 @@ _cleanpath_from_handle_u16 :: proc(f: ^File) -> ([]u16, Error) {
 		return nil, _get_platform_error()
 	}
 
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
 
-	buf := make([]u16, max(n, 260)+1, temp_allocator())
+	buf := make([]u16, max(n, 260)+1, temp_allocator)
 	n = win32.GetFinalPathNameByHandleW(h, raw_data(buf), u32(len(buf)), 0)
 	return _cleanpath_strip_prefix(buf[:n]), nil
 }
@@ -236,14 +236,30 @@ _file_type_mode_from_file_attributes :: proc(file_attributes: win32.DWORD, h: wi
 	return
 }
 
+// a 64-bit value representing the number of 100-nanosecond intervals since January 1, 1601 (UTC)
+time_as_filetime :: #force_inline proc(t: time.Time) -> (ft: win32.LARGE_INTEGER) {
+	win := u64(t._nsec / 100) + 116444736000000000
+	return win32.LARGE_INTEGER(win)
+}
+
+filetime_as_time_li :: #force_inline proc(ft: win32.LARGE_INTEGER) -> (t: time.Time) {
+	return {_nsec=(i64(ft) - 116444736000000000) * 100}
+}
+
+filetime_as_time_ft :: #force_inline proc(ft: win32.FILETIME) -> (t: time.Time) {
+	return filetime_as_time_li(win32.LARGE_INTEGER(ft.dwLowDateTime) + win32.LARGE_INTEGER(ft.dwHighDateTime) << 32)
+}
+
+filetime_as_time :: proc{filetime_as_time_ft, filetime_as_time_li}
+
 _file_info_from_win32_file_attribute_data :: proc(d: ^win32.WIN32_FILE_ATTRIBUTE_DATA, name: string, allocator: runtime.Allocator) -> (fi: File_Info, e: Error) {
 	fi.size = i64(d.nFileSizeHigh)<<32 + i64(d.nFileSizeLow)
 	type, mode := _file_type_mode_from_file_attributes(d.dwFileAttributes, nil, 0)
 	fi.type = type
 	fi.mode |= mode
-	fi.creation_time     = time.unix(0, win32.FILETIME_as_unix_nanoseconds(d.ftCreationTime))
+	fi.creation_time     = filetime_as_time(d.ftCreationTime)
-	fi.modification_time = time.unix(0, win32.FILETIME_as_unix_nanoseconds(d.ftLastWriteTime))
+	fi.modification_time = filetime_as_time(d.ftLastWriteTime)
-	fi.access_time       = time.unix(0, win32.FILETIME_as_unix_nanoseconds(d.ftLastAccessTime))
+	fi.access_time       = filetime_as_time(d.ftLastAccessTime)
 	fi.fullpath, e = full_path_from_name(name, allocator)
 	fi.name = basename(fi.fullpath)
 	return
@@ -254,9 +270,9 @@ _file_info_from_win32_find_data :: proc(d: ^win32.WIN32_FIND_DATAW, name: string
 	type, mode := _file_type_mode_from_file_attributes(d.dwFileAttributes, nil, 0)
 	fi.type = type
 	fi.mode |= mode
-	fi.creation_time     = time.unix(0, win32.FILETIME_as_unix_nanoseconds(d.ftCreationTime))
+	fi.creation_time     = filetime_as_time(d.ftCreationTime)
-	fi.modification_time = time.unix(0, win32.FILETIME_as_unix_nanoseconds(d.ftLastWriteTime))
+	fi.modification_time = filetime_as_time(d.ftLastWriteTime)
-	fi.access_time       = time.unix(0, win32.FILETIME_as_unix_nanoseconds(d.ftLastAccessTime))
+	fi.access_time       = filetime_as_time(d.ftLastAccessTime)
 	fi.fullpath, e = full_path_from_name(name, allocator)
 	fi.name = basename(fi.fullpath)
 	return
@@ -286,9 +302,9 @@ _file_info_from_get_file_information_by_handle :: proc(path: string, h: win32.HA
 	type, mode := _file_type_mode_from_file_attributes(d.dwFileAttributes, h, 0)
 	fi.type = type
 	fi.mode |= mode
-	fi.creation_time     = time.unix(0, win32.FILETIME_as_unix_nanoseconds(d.ftCreationTime))
+	fi.creation_time     = filetime_as_time(d.ftCreationTime)
-	fi.modification_time = time.unix(0, win32.FILETIME_as_unix_nanoseconds(d.ftLastWriteTime))
+	fi.modification_time = filetime_as_time(d.ftLastWriteTime)
-	fi.access_time       = time.unix(0, win32.FILETIME_as_unix_nanoseconds(d.ftLastAccessTime))
+	fi.access_time       = filetime_as_time(d.ftLastAccessTime)
 	return fi, nil
 }
 
@@ -310,42 +326,68 @@ _is_reserved_name :: proc(path: string) -> bool {
 	return false
 }
 
-_is_UNC :: proc(path: string) -> bool {
+_volume_name_len :: proc(path: string) -> (length: int) {
-	return _volume_name_len(path) > 2
-}
-
-_volume_name_len :: proc(path: string) -> int {
 	if len(path) < 2 {
 		return 0
 	}
-	c := path[0]
+
 	if path[1] == ':' {
-		switch c {
+		switch path[0] {
 		case 'a'..='z', 'A'..='Z':
 			return 2
 		}
 	}
 
-	// URL: https://msdn.microsoft.com/en-us/library/windows/desktop/aa365247(v=vs.85).aspx
+	/*
-	if l := len(path); l >= 5 && _is_path_separator(path[0]) && _is_path_separator(path[1]) &&
+		See: URL: https://msdn.microsoft.com/en-us/library/windows/desktop/aa365247(v=vs.85).aspx
-		!_is_path_separator(path[2]) && path[2] != '.' {
+		Further allowed paths can be of the form of:
-		for n := 3; n < l-1; n += 1 {
+		- \\server\share or \\server\share\more\path
-			if _is_path_separator(path[n]) {
+		- \\?\C:\...
-				n += 1
+		- \\.\PhysicalDriveX
-				if !_is_path_separator(path[n]) {
+	*/
-					if path[n] == '.' {
+	// Any remaining kind of path has to start with two slashes.
-						break
+	if !_is_path_separator(path[0]) || !_is_path_separator(path[1]) {
-					}
+		return 0
-				}
+	}
-				for ; n < l; n += 1 {
+
-					if _is_path_separator(path[n]) {
+	// Device path. The volume name is the whole string
-						break
+	if len(path) >= 5 && path[2] == '.' && _is_path_separator(path[3]) {
-					}
+		return len(path)
-				}
+	}
-				return n
+
+	// We're a UNC share `\\host\share`, file namespace `\\?\C:` or UNC in file namespace `\\?\\host\share`
+	prefix := 2
+
+	// File namespace.
+	if len(path) >= 5 && path[2] == '?' && _is_path_separator(path[3]) {
+		if _is_path_separator(path[4]) {
+			// `\\?\\` UNC path in file namespace
+			prefix = 5
+		}
+
+		if len(path) >= 6 && path[5] == ':' {
+			switch path[4] {
+			case 'a'..='z', 'A'..='Z':
+				return 6
+			case:
+				return 0
 			}
-			break
 		}
 	}
-	return 0
+
+	// UNC path, minimum version of the volume is `\\h\s` for host, share.
+	// Can also contain an IP address in the host position.
+	slash_count := 0
+	for i in prefix..<len(path) {
+		// Host needs to be at least 1 character
+		if _is_path_separator(path[i]) && i > 0 {
+			slash_count += 1
+
+			if slash_count == 2 {
+				return i
+			}
+		}
+	}
+
+	return len(path)
 }

core/os/os2/temp_file.odin

@@ -15,13 +15,13 @@ MAX_ATTEMPTS :: 1<<13 // Should be enough for everyone, right?
 // The caller must `close` the file once finished with.
 @(require_results)
 create_temp_file :: proc(dir, pattern: string) -> (f: ^File, err: Error) {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
-	dir := dir if dir != "" else temp_directory(temp_allocator()) or_return
+	dir := dir if dir != "" else temp_directory(temp_allocator) or_return
 	prefix, suffix := _prefix_and_suffix(pattern) or_return
 	prefix = temp_join_path(dir, prefix) or_return
 
 	rand_buf: [10]byte
-	name_buf := make([]byte, len(prefix)+len(rand_buf)+len(suffix), temp_allocator())
+	name_buf := make([]byte, len(prefix)+len(rand_buf)+len(suffix), temp_allocator)
 
 	attempts := 0
 	for {
@@ -47,13 +47,13 @@ mkdir_temp :: make_directory_temp
 // If `dir` is an empty tring, `temp_directory()` will be used.
 @(require_results)
 make_directory_temp :: proc(dir, pattern: string, allocator: runtime.Allocator) -> (temp_path: string, err: Error) {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
-	dir := dir if dir != "" else temp_directory(temp_allocator()) or_return
+	dir := dir if dir != "" else temp_directory(temp_allocator) or_return
 	prefix, suffix := _prefix_and_suffix(pattern) or_return
 	prefix = temp_join_path(dir, prefix) or_return
 
 	rand_buf: [10]byte
-	name_buf := make([]byte, len(prefix)+len(rand_buf)+len(suffix), temp_allocator())
+	name_buf := make([]byte, len(prefix)+len(rand_buf)+len(suffix), temp_allocator)
 
 	attempts := 0
 	for {
@@ -70,7 +70,7 @@ make_directory_temp :: proc(dir, pattern: string, allocator: runtime.Allocator)
 			return "", err
 		}
 		if err == .Not_Exist {
-			if _, serr := stat(dir, temp_allocator()); serr == .Not_Exist {
+			if _, serr := stat(dir, temp_allocator); serr == .Not_Exist {
 				return "", serr
 			}
 		}
@@ -89,9 +89,11 @@ temp_directory :: proc(allocator: runtime.Allocator) -> (string, Error) {
 
 @(private="file")
 temp_join_path :: proc(dir, name: string) -> (string, runtime.Allocator_Error) {
+	temp_allocator := TEMP_ALLOCATOR_GUARD({})
+
 	if len(dir) > 0 && is_path_separator(dir[len(dir)-1]) {
-		return concatenate({dir, name}, temp_allocator(),)
+		return concatenate({dir, name}, temp_allocator,)
 	}
 
-	return concatenate({dir, Path_Separator_String, name}, temp_allocator())
+	return concatenate({dir, Path_Separator_String, name}, temp_allocator)
 }

core/os/os2/temp_file_linux.odin

@@ -4,8 +4,8 @@ package os2
 import "base:runtime"
 
 _temp_dir :: proc(allocator: runtime.Allocator) -> (string, runtime.Allocator_Error) {
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
-	tmpdir := get_env("TMPDIR", temp_allocator())
+	tmpdir := get_env("TMPDIR", temp_allocator)
 	if tmpdir == "" {
 		tmpdir = "/tmp"
 	}

core/os/os2/temp_file_windows.odin

@@ -9,9 +9,9 @@ _temp_dir :: proc(allocator: runtime.Allocator) -> (string, runtime.Allocator_Er
 	if n == 0 {
 		return "", nil
 	}
-	TEMP_ALLOCATOR_GUARD()
+	temp_allocator := TEMP_ALLOCATOR_GUARD({ allocator })
 
-	b := make([]u16, max(win32.MAX_PATH, n), temp_allocator())
+	b := make([]u16, max(win32.MAX_PATH, n), temp_allocator)
 	n = win32.GetTempPathW(u32(len(b)), raw_data(b))
 
 	if n == 3 && b[1] == ':' && b[2] == '\\' {

core/os/os2/user.odin

@@ -2,78 +2,148 @@ package os2
 
 import "base:runtime"
 
-@(require_results)
+// ```
-user_cache_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
+// Windows:  C:\Users\Alice
-	TEMP_ALLOCATOR_GUARD()
+// macOS:    /Users/Alice
-
+// Linux:    /home/alice
-	#partial switch ODIN_OS {
+// ```
-	case .Windows:
-		dir = get_env("LocalAppData", temp_allocator())
-		if dir != "" {
-			dir = clone_string(dir, allocator) or_return
-		}
-	case .Darwin:
-		dir = get_env("HOME", temp_allocator())
-		if dir != "" {
-			dir = concatenate({dir, "/Library/Caches"}, allocator) or_return
-		}
-	case: // All other UNIX systems
-		dir = get_env("XDG_CACHE_HOME", allocator)
-		if dir == "" {
-			dir = get_env("HOME", temp_allocator())
-			if dir == "" {
-				return
-			}
-			dir = concatenate({dir, "/.cache"}, allocator) or_return
-		}
-	}
-	if dir == "" {
-		err = .Invalid_Path
-	}
-	return
-}
-
-@(require_results)
-user_config_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
-	TEMP_ALLOCATOR_GUARD()
-
-	#partial switch ODIN_OS {
-	case .Windows:
-		dir = get_env("AppData", temp_allocator())
-		if dir != "" {
-			dir = clone_string(dir, allocator) or_return
-		}
-	case .Darwin:
-		dir = get_env("HOME", temp_allocator())
-		if dir != "" {
-			dir = concatenate({dir, "/.config"}, allocator) or_return
-		}
-	case: // All other UNIX systems
-		dir = get_env("XDG_CONFIG_HOME", allocator)
-		if dir == "" {
-			dir = get_env("HOME", temp_allocator())
-			if dir == "" {
-				return
-			}
-			dir = concatenate({dir, "/.config"}, allocator) or_return
-		}
-	}
-	if dir == "" {
-		err = .Invalid_Path
-	}
-	return
-}
-
 @(require_results)
 user_home_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
-	env := "HOME"
+	return _user_home_dir(allocator)
-	#partial switch ODIN_OS {
-	case .Windows:
-		env = "USERPROFILE"
-	}
-	if v := get_env(env, allocator); v != "" {
-		return v, nil
-	}
-	return "", .Invalid_Path
 }
 
+// Files that applications can regenerate/refetch at a loss of speed, e.g. shader caches
+//
+// Sometimes deleted for system maintenance
+//
+// ```
+// Windows:  C:\Users\Alice\AppData\Local
+// macOS:    /Users/Alice/Library/Caches
+// Linux:    /home/alice/.cache
+// ```
+@(require_results)
+user_cache_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
+	return _user_cache_dir(allocator)
+}
+
+// User-hidden application data
+//
+// ```
+// Windows:  C:\Users\Alice\AppData\Local ("C:\Users\Alice\AppData\Roaming" if `roaming`)
+// macOS:    /Users/Alice/Library/Application Support
+// Linux:    /home/alice/.local/share
+// ```
+//
+// NOTE: (Windows only) `roaming` is for syncing across multiple devices within a *domain network*
+@(require_results)
+user_data_dir :: proc(allocator: runtime.Allocator, roaming := false) -> (dir: string, err: Error) {
+	return _user_data_dir(allocator, roaming)
+}
+
+// Non-essential application data, e.g. history, ui layout state
+//
+// ```
+// Windows:  C:\Users\Alice\AppData\Local
+// macOS:    /Users/Alice/Library/Application Support
+// Linux:    /home/alice/.local/state
+// ```
+@(require_results)
+user_state_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
+	return _user_state_dir(allocator)
+}
+
+// Application log files
+//
+// ```
+// Windows:  C:\Users\Alice\AppData\Local
+// macOS:    /Users/Alice/Library/Logs
+// Linux:    /home/alice/.local/state
+// ```
+@(require_results)
+user_log_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
+	return _user_log_dir(allocator)
+}
+
+// Application settings/preferences
+//
+// ```
+// Windows:  C:\Users\Alice\AppData\Local ("C:\Users\Alice\AppData\Roaming" if `roaming`)
+// macOS:    /Users/Alice/Library/Application Support
+// Linux:    /home/alice/.config
+// ```
+//
+// NOTE: (Windows only) `roaming` is for syncing across multiple devices within a *domain network*
+@(require_results)
+user_config_dir :: proc(allocator: runtime.Allocator, roaming := false) -> (dir: string, err: Error) {
+	return _user_config_dir(allocator, roaming)
+}
+
+// ```
+// Windows:  C:\Users\Alice\Music
+// macOS:    /Users/Alice/Music
+// Linux:    /home/alice/Music
+// ```
+@(require_results)
+user_music_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
+	return _user_music_dir(allocator)
+}
+
+// ```
+// Windows:  C:\Users\Alice\Desktop
+// macOS:    /Users/Alice/Desktop
+// Linux:    /home/alice/Desktop
+// ```
+@(require_results)
+user_desktop_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
+	return _user_desktop_dir(allocator)
+}
+
+// ```
+// Windows:  C:\Users\Alice\Documents
+// macOS:    /Users/Alice/Documents
+// Linux:    /home/alice/Documents
+// ```
+@(require_results)
+user_documents_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
+	return _user_documents_dir(allocator)
+}
+
+// ```
+// Windows:  C:\Users\Alice\Downloads
+// macOS:    /Users/Alice/Downloads
+// Linux:    /home/alice/Downloads
+// ```
+@(require_results)
+user_downloads_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
+	return _user_downloads_dir(allocator)
+}
+
+// ```
+// Windows:  C:\Users\Alice\Pictures
+// macOS:    /Users/Alice/Pictures
+// Linux:    /home/alice/Pictures
+// ```
+@(require_results)
+user_pictures_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
+	return _user_pictures_dir(allocator)
+}
+
+// ```
+// Windows:  C:\Users\Alice\Public
+// macOS:    /Users/Alice/Public
+// Linux:    /home/alice/Public
+// ```
+@(require_results)
+user_public_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
+	return _user_public_dir(allocator)
+}
+
+// ```
+// Windows:  C:\Users\Alice\Videos
+// macOS:    /Users/Alice/Movies
+// Linux:    /home/alice/Videos
+// ```
+@(require_results)
+user_videos_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
+	return _user_videos_dir(allocator)
+}

core/os/os2/user_posix.odin

@@ -0,0 +1,183 @@
+#+build !windows
+package os2
+
+import "base:runtime"
+import "core:encoding/ini"
+import "core:strings"
+import "core:sys/posix"
+
+_user_cache_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
+	#partial switch ODIN_OS {
+	case .Darwin:
+		return _xdg_lookup("", "/Library/Caches", allocator)
+	case: // Unix
+		return _xdg_lookup("XDG_CACHE_HOME", "/.cache", allocator)
+	}
+}
+
+_user_config_dir :: proc(allocator: runtime.Allocator, _roaming: bool) -> (dir: string, err: Error) {
+	#partial switch ODIN_OS {
+	case .Darwin:
+		return _xdg_lookup("", "/Library/Application Support", allocator)
+	case: // Unix
+		return _xdg_lookup("XDG_CONFIG_HOME", "/.config", allocator)
+	}
+}
+
+_user_state_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
+	#partial switch ODIN_OS {
+	case .Darwin:
+		return _xdg_lookup("", "/Library/Application Support", allocator)
+	case: // Unix
+		return _xdg_lookup("XDG_STATE_HOME", "/.local/state", allocator)
+	}
+}
+
+_user_log_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
+	#partial switch ODIN_OS {
+	case .Darwin:
+		return _xdg_lookup("", "/Library/Logs", allocator)
+	case: // Unix
+		return _xdg_lookup("XDG_STATE_HOME", "/.local/state", allocator)
+	}
+}
+
+_user_data_dir :: proc(allocator: runtime.Allocator, _roaming: bool) -> (dir: string, err: Error) {
+	#partial switch ODIN_OS {
+	case .Darwin:
+		return _xdg_lookup("", "/Library/Application Support", allocator)
+	case: // Unix
+		return _xdg_lookup("XDG_DATA_HOME", "/.local/share", allocator)
+	}
+}
+
+_user_music_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
+	#partial switch ODIN_OS {
+	case .Darwin:
+		return _xdg_lookup("", "/Music", allocator)
+	case: // Unix
+		return _xdg_lookup("XDG_MUSIC_DIR", "/Music", allocator)
+	}
+}
+
+_user_desktop_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
+	#partial switch ODIN_OS {
+	case .Darwin:
+		return _xdg_lookup("", "/Desktop", allocator)
+	case: // Unix
+		return _xdg_lookup("XDG_DESKTOP_DIR", "/Desktop", allocator)
+	}
+}
+
+_user_documents_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
+	#partial switch ODIN_OS {
+	case .Darwin:
+		return _xdg_lookup("", "/Documents", allocator)
+	case: // Unix
+		return _xdg_lookup("XDG_DOCUMENTS_DIR", "/Documents", allocator)
+	}
+}
+
+_user_downloads_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
+	#partial switch ODIN_OS {
+	case .Darwin:
+		return _xdg_lookup("", "/Downloads", allocator)
+	case: // Unix
+		return _xdg_lookup("XDG_DOWNLOAD_DIR", "/Downloads", allocator)
+	}
+}
+
+_user_pictures_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
+	#partial switch ODIN_OS {
+	case .Darwin:
+		return _xdg_lookup("", "/Pictures", allocator)
+	case: // Unix
+		return _xdg_lookup("XDG_PICTURES_DIR", "/Pictures", allocator)
+	}
+}
+
+_user_public_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
+	#partial switch ODIN_OS {
+	case .Darwin:
+		return _xdg_lookup("", "/Public", allocator)
+	case: // Unix
+		return _xdg_lookup("XDG_PUBLICSHARE_DIR", "/Public", allocator)
+	}
+}
+
+_user_videos_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
+	#partial switch ODIN_OS {
+	case .Darwin:
+		return _xdg_lookup("", "/Movies", allocator)
+	case: // Unix
+		return _xdg_lookup("XDG_VIDEOS_DIR", "/Videos", allocator)
+	}
+}
+
+_user_home_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
+	if v := get_env("HOME", allocator); v != "" {
+		return v, nil
+	}
+	err = .No_HOME_Variable
+	return
+}
+
+_xdg_lookup :: proc(xdg_key: string, fallback_suffix: string, allocator: runtime.Allocator) -> (dir: string, err: Error) {
+	temp_allocator  := TEMP_ALLOCATOR_GUARD({ allocator })
+
+	if xdg_key == "" { // Darwin doesn't have XDG paths.
+		dir = get_env("HOME", temp_allocator)
+		if dir == "" {
+			err = .No_HOME_Variable
+			return
+		}
+		return concatenate({dir, fallback_suffix}, allocator)
+	} else {
+		if strings.ends_with(xdg_key, "_DIR") {
+			dir = _xdg_user_dirs_lookup(xdg_key, allocator) or_return
+		} else {
+			dir = get_env(xdg_key, allocator)
+		}
+
+		if dir == "" {
+			dir = get_env("HOME", temp_allocator)
+			if dir == "" {
+				err = .No_HOME_Variable
+				return
+			}
+			dir = concatenate({dir, fallback_suffix}, allocator) or_return
+		}
+		return
+	}
+}
+
+// If `<config-dir>/user-dirs.dirs` doesn't exist, or `xdg_key` can't be found there: returns `""`
+_xdg_user_dirs_lookup :: proc(xdg_key: string, allocator: runtime.Allocator) -> (dir: string, err: Error) {
+	temp_allocator  := TEMP_ALLOCATOR_GUARD({ allocator })
+	config_dir      := user_config_dir(temp_allocator) or_return
+	user_dirs_path  := concatenate({config_dir, "/user-dirs.dirs"}, temp_allocator) or_return
+	content         := read_entire_file(user_dirs_path, temp_allocator) or_return
+
+	it := ini.Iterator{
+		section = "",
+		_src    = string(content),
+		options = ini.Options{
+			comment        = "#",
+			key_lower_case = false,
+		},
+	}
+
+	for k, v in ini.iterate(&it) {
+		if k == xdg_key {
+			we: posix.wordexp_t
+			defer posix.wordfree(&we)
+
+			if _err := posix.wordexp(strings.clone_to_cstring(v, temp_allocator), &we, nil); _err != nil || we.we_wordc != 1 {
+				return "", .Wordexp_Failed
+			}
+
+			return strings.clone_from_cstring(we.we_wordv[0], allocator)
+		}
+	}
+	return
+}

core/os/os2/user_windows.odin

@@ -0,0 +1,79 @@
+package os2
+
+import "base:runtime"
+@(require) import win32 "core:sys/windows"
+
+_local_appdata :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
+	guid := win32.FOLDERID_LocalAppData
+	return _get_known_folder_path(&guid, allocator)
+}
+
+_local_appdata_or_roaming :: proc(allocator: runtime.Allocator, roaming: bool) -> (dir: string, err: Error) {
+	guid := win32.FOLDERID_LocalAppData
+	if roaming {
+		guid = win32.FOLDERID_RoamingAppData
+	}
+	return _get_known_folder_path(&guid, allocator)
+}
+
+_user_config_dir :: _local_appdata_or_roaming
+_user_data_dir :: _local_appdata_or_roaming
+
+_user_state_dir :: _local_appdata
+_user_log_dir :: _local_appdata
+_user_cache_dir :: _local_appdata
+
+_user_home_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
+	guid := win32.FOLDERID_Profile
+	return _get_known_folder_path(&guid, allocator)
+}
+
+_user_music_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
+	guid := win32.FOLDERID_Music
+	return _get_known_folder_path(&guid, allocator)
+}
+
+_user_desktop_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
+	guid := win32.FOLDERID_Desktop
+	return _get_known_folder_path(&guid, allocator)
+}
+
+_user_documents_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
+	guid := win32.FOLDERID_Documents
+	return _get_known_folder_path(&guid, allocator)
+}
+
+_user_downloads_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
+	guid := win32.FOLDERID_Downloads
+	return _get_known_folder_path(&guid, allocator)
+}
+
+_user_pictures_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
+	guid := win32.FOLDERID_Pictures
+	return _get_known_folder_path(&guid, allocator)
+}
+
+_user_public_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
+	guid := win32.FOLDERID_Public
+	return _get_known_folder_path(&guid, allocator)
+}
+
+_user_videos_dir :: proc(allocator: runtime.Allocator) -> (dir: string, err: Error) {
+	guid := win32.FOLDERID_Videos
+	return _get_known_folder_path(&guid, allocator)
+}
+
+_get_known_folder_path :: proc(rfid: win32.REFKNOWNFOLDERID, allocator: runtime.Allocator) -> (dir: string, err: Error) {
+	// https://learn.microsoft.com/en-us/windows/win32/api/shlobj_core/nf-shlobj_core-shgetknownfolderpath
+	// See also `known_folders.odin` in `core:sys/windows` for the GUIDs.
+	path_w: win32.LPWSTR
+	res  := win32.SHGetKnownFolderPath(rfid, 0, nil, &path_w)
+	defer win32.CoTaskMemFree(path_w)
+
+	if res != 0 {
+		return "", .Invalid_Path
+	}
+
+	dir, _ = win32.wstring_to_utf8(path_w, -1, allocator)
+	return
+}

core/os/os_js.odin

@@ -249,3 +249,7 @@ exit :: proc "contextless" (code: int) -> ! {
 current_thread_id :: proc "contextless" () -> int {
 	return 0
 }
+
+lookup_env :: proc(key: string, allocator := context.allocator) -> (value: string, found: bool) {
+	return "", false
+}

core/path/filepath/path_js.odin

@@ -0,0 +1,36 @@
+package filepath
+
+import "base:runtime"
+
+import "core:strings"
+
+SEPARATOR :: '/'
+SEPARATOR_STRING :: `/`
+LIST_SEPARATOR :: ':'
+
+is_reserved_name :: proc(path: string) -> bool {
+	return false
+}
+
+is_abs :: proc(path: string) -> bool {
+	return strings.has_prefix(path, "/")
+}
+
+abs :: proc(path: string, allocator := context.allocator) -> (string, bool) {
+	if is_abs(path) {
+		return strings.clone(string(path), allocator), true
+	}
+
+	return path, false
+}
+
+join :: proc(elems: []string, allocator := context.allocator) -> (joined: string, err: runtime.Allocator_Error) #optional_allocator_error {
+	for e, i in elems {
+		if e != "" {
+			runtime.DEFAULT_TEMP_ALLOCATOR_TEMP_GUARD(ignore = context.temp_allocator == allocator)
+			p := strings.join(elems[i:], SEPARATOR_STRING, context.temp_allocator) or_return
+			return clean(p, allocator)
+		}
+	}
+	return "", nil
+}

core/simd/simd.odin

@@ -21,20 +21,17 @@ package simd
 
 import "base:builtin"
 import "base:intrinsics"
+import "base:runtime"
 
 /*
 Check if SIMD is software-emulated on a target platform.
 
-This value is `false`, when the compile-time target has the hardware support for
+This value is `true`, when the compile-time target has the hardware support for
-at 128-bit (or wider) SIMD. If the compile-time target lacks the hardware support
+at least 128-bit (or wider) SIMD. If the compile-time target lacks the hardware support
-for 128-bit SIMD, this value is `true`, and all SIMD operations will likely be
+for 128-bit SIMD, this value is `false`, and all SIMD operations will likely be
 emulated.
 */
-IS_EMULATED :: true when (ODIN_ARCH == .amd64 || ODIN_ARCH == .i386) && !intrinsics.has_target_feature("sse2") else
+HAS_HARDWARE_SIMD :: runtime.HAS_HARDWARE_SIMD
-	true when (ODIN_ARCH == .arm64 || ODIN_ARCH == .arm32) && !intrinsics.has_target_feature("neon") else
-	true when (ODIN_ARCH == .wasm64p32 || ODIN_ARCH == .wasm32) && !intrinsics.has_target_feature("simd128") else
-	true when (ODIN_ARCH == .riscv64) && !intrinsics.has_target_feature("v") else
-	false
 
 /*
 Vector of 16 `u8` lanes (128 bits).
@@ -1759,7 +1756,103 @@ Returns:
 replace :: intrinsics.simd_replace
 
 /*
-Reduce a vector to a scalar by adding up all the lanes.
+Reduce a vector to a scalar by adding up all the lanes in a bisecting fashion.
+
+This procedure returns a scalar that is the sum of all lanes, calculated by
+bisecting the vector into two parts, where the first contains lanes [0, N/2)
+and the second contains lanes [N/2, N), and adding the two halves element-wise
+to produce N/2 values. This is repeated until only a single element remains.
+This order may be faster to compute than the ordered sum for floats, as it can
+often be better parallelized.
+
+The order of the sum may be important for accounting for precision errors in
+floating-point computation, as floating-point addition is not associative, that
+is `(a+b)+c` may not be equal to `a+(b+c)`.
+
+Inputs:
+- `v`: The vector to reduce.
+
+Result:
+- Sum of all lanes, as a scalar.
+
+**Operation**:
+
+	for n > 1 {
+		n = n / 2
+		for i in 0 ..< n {
+			a[i] += a[i+n]
+		}
+	}
+	res := a[0]
+
+Graphical representation of the operation for N=4:
+
+	     +-----------------------+
+	     | v0  | v1  | v2  | v3  |
+	     +-----------------------+
+	        |     |     |     |
+	       [+]<-- | ---'      |
+	        |    [+]<--------'
+	        |     |
+	        `>[+]<'
+	           |
+	           v
+	        +-----+
+	result: | y0  |
+	        +-----+
+*/
+reduce_add_bisect :: intrinsics.simd_reduce_add_bisect
+
+/*
+Reduce a vector to a scalar by multiplying up all the lanes in a bisecting fashion.
+
+This procedure returns a scalar that is the product of all lanes, calculated by
+bisecting the vector into two parts, where the first contains indices [0, N/2)
+and the second contains indices [N/2, N), and multiplying the two halves
+together element-wise to produce N/2 values. This is repeated until only a
+single element remains. This order may be faster to compute than the ordered
+product for floats, as it can often be better parallelized.
+
+The order of the product may be important for accounting for precision errors
+in floating-point computation, as floating-point multiplication is not
+associative, that is `(a*b)*c` may not be equal to `a*(b*c)`.
+
+Inputs:
+- `v`: The vector to reduce.
+
+Result:
+- Product of all lanes, as a scalar.
+
+**Operation**:
+
+	for n > 1 {
+		n = n / 2
+		for i in 0 ..< n {
+			a[i] *= a[i+n]
+		}
+	}
+	res := a[0]
+
+Graphical representation of the operation for N=4:
+
+	     +-----------------------+
+	     | v0  | v1  | v2  | v3  |
+	     +-----------------------+
+	        |     |     |     |
+	       [x]<-- | ---'      |
+	        |    [x]<--------'
+	        |     |
+	        `>[x]<'
+	           |
+	           v
+	        +-----+
+	result: | y0  |
+	        +-----+
+*/
+reduce_mul_bisect :: intrinsics.simd_reduce_mul_bisect
+
+/*
+Reduce a vector to a scalar by adding up all the lanes in an ordered fashion.
 
 This procedure returns a scalar that is the ordered sum of all lanes. The
 ordered sum may be important for accounting for precision errors in
@@ -1782,7 +1875,7 @@ Result:
 reduce_add_ordered :: intrinsics.simd_reduce_add_ordered
 
 /*
-Reduce a vector to a scalar by multiplying all the lanes.
+Reduce a vector to a scalar by multiplying all the lanes in an ordered fashion.
 
 This procedure returns a scalar that is the ordered product of all lanes.
 The ordered product may be important for accounting for precision errors in
@@ -1804,6 +1897,100 @@ Result:
 */
 reduce_mul_ordered :: intrinsics.simd_reduce_mul_ordered
 
+/*
+Reduce a vector to a scalar by adding up all the lanes in a pairwise fashion.
+
+This procedure returns a scalar that is the sum of all lanes, calculated by
+adding each even-indexed element with the following odd-indexed element to
+produce N/2 values. This is repeated until only a single element remains. This
+order is supported by hardware instructions for some types/architectures (e.g.
+i16/i32/f32/f64 on x86 SSE, i8/i16/i32/f32 on ARM NEON).
+
+The order of the sum may be important for accounting for precision errors in
+floating-point computation, as floating-point addition is not associative, that
+is `(a+b)+c` may not be equal to `a+(b+c)`.
+
+Inputs:
+- `v`: The vector to reduce.
+
+Result:
+- Sum of all lanes, as a scalar.
+
+**Operation**:
+
+	for n > 1 {
+		n = n / 2
+		for i in 0 ..< n {
+			a[i] = a[2*i+0] + a[2*i+1]
+		}
+	}
+	res := a[0]
+
+Graphical representation of the operation for N=4:
+
+	   +-----------------------+
+	v: | v0  | v1  | v2  | v3  |
+	   +-----------------------+
+	      |     |     |     |
+	      `>[+]<'     `>[+]<'
+	         |           |
+	         `--->[+]<--'
+	               |
+	               v
+	            +-----+
+	    result: | y0  |
+	            +-----+
+*/
+reduce_add_pairs :: intrinsics.simd_reduce_add_pairs
+
+/*
+Reduce a vector to a scalar by multiplying all the lanes in a pairwise fashion.
+
+This procedure returns a scalar that is the product of all lanes, calculated by
+bisecting the vector into two parts, where the first contains lanes [0, N/2)
+and the second contains lanes [N/2, N), and multiplying the two halves together
+multiplying each even-indexed element with the following odd-indexed element to
+produce N/2 values. This is repeated until only a single element remains. This
+order may be faster to compute than the ordered product for floats, as it can
+often be better parallelized.
+
+The order of the product may be important for accounting for precision errors
+in floating-point computation, as floating-point multiplication is not
+associative, that is `(a*b)*c` may not be equal to `a*(b*c)`.
+
+Inputs:
+- `v`: The vector to reduce.
+
+Result:
+- Product of all lanes, as a scalar.
+
+**Operation**:
+
+	for n > 1 {
+		n = n / 2
+		for i in 0 ..< n {
+			a[i] = a[2*i+0] * a[2*i+1]
+		}
+	}
+	res := a[0]
+
+Graphical representation of the operation for N=4:
+
+	   +-----------------------+
+	v: | v0  | v1  | v2  | v3  |
+	   +-----------------------+
+	      |     |     |     |
+	      `>[x]<'     `>[x]<'
+	         |           |
+	         `--->[x]<--'
+	               |
+	               v
+	            +-----+
+	    result: | y0  |
+	            +-----+
+*/
+reduce_mul_pairs :: intrinsics.simd_reduce_mul_pairs
+
 /*
 Reduce a vector to a scalar by finding the minimum value between all of the lanes.
 
@@ -2510,3 +2697,17 @@ Example:
 recip :: #force_inline proc "contextless" (v: $T/#simd[$LANES]$E) -> T where intrinsics.type_is_float(E) {
 	return T(1) / v
 }
+
+
+/*
+Create a vector where each lane contains the index of that lane.
+Inputs:
+- `V`: The type of the vector to create.
+Result:
+- A vector of the given type, where each lane contains the index of that lane.
+**Operation**:
+	for i in 0 ..< N {
+		res[i] = i
+	}
+*/
+indices :: intrinsics.simd_indices

core/simd/x86/bmi.odin

@@ -0,0 +1,79 @@
+#+build i386, amd64
+package simd_x86
+
+import "base:intrinsics"
+
+@(require_results, enable_target_feature="bmi")
+_andn_u32 :: #force_inline proc "c" (a, b: u32) -> u32 {
+	return a &~ b
+}
+@(require_results, enable_target_feature="bmi")
+_andn_u64 :: #force_inline proc "c" (a, b: u64) -> u64 {
+	return a &~ b
+}
+
+@(require_results, enable_target_feature="bmi")
+_bextr_u32 :: #force_inline proc "c" (a, start, len: u32) -> u32 {
+	return bextr_u32(a, (start & 0xff) | (len << 8))
+}
+@(require_results, enable_target_feature="bmi")
+_bextr_u64 :: #force_inline proc "c" (a: u64, start, len: u32) -> u64 {
+	return bextr_u64(a, cast(u64)((start & 0xff) | (len << 8)))
+}
+
+@(require_results, enable_target_feature="bmi")
+_bextr2_u32 :: #force_inline proc "c" (a, control: u32) -> u32 {
+	return bextr_u32(a, control)
+}
+@(require_results, enable_target_feature="bmi")
+_bextr2_u64 :: #force_inline proc "c" (a, control: u64) -> u64 {
+	return bextr_u64(a, control)
+}
+
+@(require_results, enable_target_feature="bmi")
+_blsi_u32 :: #force_inline proc "c" (a: u32) -> u32 {
+	return a & -a
+}
+@(require_results, enable_target_feature="bmi")
+_blsi_u64 :: #force_inline proc "c" (a: u64) -> u64 {
+	return a & -a
+}
+
+@(require_results, enable_target_feature="bmi")
+_blsmsk_u32 :: #force_inline proc "c" (a: u32) -> u32 {
+	return a ~ (a-1)
+}
+@(require_results, enable_target_feature="bmi")
+_blsmsk_u64 :: #force_inline proc "c" (a: u64) -> u64 {
+	return a ~ (a-1)
+}
+
+@(require_results, enable_target_feature="bmi")
+_blsr_u32 :: #force_inline proc "c" (a: u32) -> u32 {
+	return a & (a-1)
+}
+@(require_results, enable_target_feature="bmi")
+_blsr_u64 :: #force_inline proc "c" (a: u64) -> u64 {
+	return a & (a-1)
+}
+
+@(require_results, enable_target_feature = "bmi")
+_tzcnt_u16 :: #force_inline proc "c" (a: u16) -> u16 {
+	return intrinsics.count_trailing_zeros(a)
+}
+@(require_results, enable_target_feature = "bmi")
+_tzcnt_u32 :: #force_inline proc "c" (a: u32) -> u32 {
+	return intrinsics.count_trailing_zeros(a)
+}
+@(require_results, enable_target_feature = "bmi")
+_tzcnt_u64 :: #force_inline proc "c" (a: u64) -> u64 {
+	return intrinsics.count_trailing_zeros(a)
+}
+
+@(private, default_calling_convention = "none")
+foreign _ {
+	@(link_name = "llvm.x86.bmi.bextr.32")
+	bextr_u32 :: proc(a, control: u32) -> u32 ---
+	@(link_name = "llvm.x86.bmi.bextr.64")
+	bextr_u64 :: proc(a, control: u64) -> u64 ---
+}

core/simd/x86/bmi2.odin

@@ -0,0 +1,46 @@
+#+build i386, amd64
+package simd_x86
+
+@(require_results, enable_target_feature = "bmi2")
+_bzhi_u32 :: #force_inline proc "c" (a, index: u32) -> u32 {
+	return bzhi_u32(a, index)
+}
+@(require_results, enable_target_feature = "bmi2")
+_bzhi_u64 :: #force_inline proc "c" (a, index: u64) -> u64 {
+	return bzhi_u64(a, index)
+}
+
+@(require_results, enable_target_feature = "bmi2")
+_pdep_u32 :: #force_inline proc "c" (a, mask: u32) -> u32 {
+	return pdep_u32(a, mask)
+}
+@(require_results, enable_target_feature = "bmi2")
+_pdep_u64 :: #force_inline proc "c" (a, mask: u64) -> u64 {
+	return pdep_u64(a, mask)
+}
+
+@(require_results, enable_target_feature = "bmi2")
+_pext_u32 :: #force_inline proc "c" (a, mask: u32) -> u32 {
+	return pext_u32(a, mask)
+}
+@(require_results, enable_target_feature = "bmi2")
+_pext_u64 :: #force_inline proc "c" (a, mask: u64) -> u64 {
+	return pext_u64(a, mask)
+}
+
+
+@(private, default_calling_convention = "none")
+foreign _ {
+	@(link_name = "llvm.x86.bmi.bzhi.32")
+	bzhi_u32 :: proc(a, index: u32) -> u32 ---
+	@(link_name = "llvm.x86.bmi.bzhi.64")
+	bzhi_u64 :: proc(a, index: u64) -> u64 ---
+	@(link_name = "llvm.x86.bmi.pdep.32")
+	pdep_u32 :: proc(a, mask: u32) -> u32 ---
+	@(link_name = "llvm.x86.bmi.pdep.64")
+	pdep_u64 :: proc(a, mask: u64) -> u64 ---
+	@(link_name = "llvm.x86.bmi.pext.32")
+	pext_u32 :: proc(a, mask: u32) -> u32 ---
+	@(link_name = "llvm.x86.bmi.pext.64")
+	pext_u64 :: proc(a, mask: u64) -> u64 ---
+}

core/sort/sort.odin

@@ -30,14 +30,6 @@ sort :: proc(it: Interface) {
 	_quick_sort(it, 0, n, max_depth(n))
 }
 
-
-@(deprecated="use slice.sort")
-slice :: proc(array: $T/[]$E) where ORD(E) {
-	_slice.sort(array)
-	// s := array;
-	// sort(slice_interface(&s));
-}
-
 slice_interface :: proc(s: ^$T/[]$E) -> Interface where ORD(E) {
 	return Interface{
 		collection = rawptr(s),
@@ -80,31 +72,6 @@ reverse_sort :: proc(it: Interface) {
 	sort(reverse_interface(&it))
 }
 
-@(deprecated="use slice.reverse")
-reverse_slice :: proc(array: $T/[]$E) where ORD(E) {
-	_slice.reverse(array)
-	/*
-	s := array;
-	sort(Interface{
-		collection = rawptr(&s),
-		len = proc(it: Interface) -> int {
-			s := (^T)(it.collection);
-			return len(s^);
-		},
-		less = proc(it: Interface, i, j: int) -> bool {
-			s := (^T)(it.collection);
-			return s[j] < s[i]; // manual set up
-		},
-		swap = proc(it: Interface, i, j: int) {
-			s := (^T)(it.collection);
-			s[i], s[j] = s[j], s[i];
-		},
-	});
-	*/
-}
-
-
-
 is_sorted :: proc(it: Interface) -> bool {
 	n := it->len()
 	for i := n-1; i > 0; i -= 1 {
@@ -294,11 +261,6 @@ _insertion_sort :: proc(it: Interface, a, b: int) {
 	}
 }
 
-
-
-
-
-// @(deprecated="use sort.sort or slice.sort_by")
 bubble_sort_proc :: proc(array: $A/[]$T, f: proc(T, T) -> int) {
 	assert(f != nil)
 	count := len(array)
@@ -327,7 +289,6 @@ bubble_sort_proc :: proc(array: $A/[]$T, f: proc(T, T) -> int) {
 	}
 }
 
-// @(deprecated="use sort.sort_slice or slice.sort")
 bubble_sort :: proc(array: $A/[]$T) where intrinsics.type_is_ordered(T) {
 	count := len(array)
 
@@ -355,7 +316,6 @@ bubble_sort :: proc(array: $A/[]$T) where intrinsics.type_is_ordered(T) {
 	}
 }
 
-// @(deprecated="use sort.sort or slice.sort_by")
 quick_sort_proc :: proc(array: $A/[]$T, f: proc(T, T) -> int) {
 	assert(f != nil)
 	a := array
@@ -384,7 +344,6 @@ quick_sort_proc :: proc(array: $A/[]$T, f: proc(T, T) -> int) {
 	quick_sort_proc(a[i:n], f)
 }
 
-// @(deprecated="use sort.sort_slice or slice.sort")
 quick_sort :: proc(array: $A/[]$T) where intrinsics.type_is_ordered(T) {
 	a := array
 	n := len(a)
@@ -420,7 +379,6 @@ _log2 :: proc(x: int) -> int {
 	return res
 }
 
-// @(deprecated="use sort.sort or slice.sort_by")
 merge_sort_proc :: proc(array: $A/[]$T, f: proc(T, T) -> int) {
 	merge :: proc(a: A, start, mid, end: int, f: proc(T, T) -> int) {
 		s, m := start, mid
@@ -462,7 +420,6 @@ merge_sort_proc :: proc(array: $A/[]$T, f: proc(T, T) -> int) {
 	internal_sort(array, 0, len(array)-1, f)
 }
 
-// @(deprecated="use sort.sort_slice or slice.sort")
 merge_sort :: proc(array: $A/[]$T) where intrinsics.type_is_ordered(T) {
 	merge :: proc(a: A, start, mid, end: int) {
 		s, m := start, mid
@@ -504,8 +461,6 @@ merge_sort :: proc(array: $A/[]$T) where intrinsics.type_is_ordered(T) {
 	internal_sort(array, 0, len(array)-1)
 }
 
-
-// @(deprecated="use sort.sort or slice.sort_by")
 heap_sort_proc :: proc(array: $A/[]$T, f: proc(T, T) -> int) {
 	sift_proc :: proc(a: A, pi: int, n: int, f: proc(T, T) -> int) #no_bounds_check {
 		p := pi
@@ -540,7 +495,6 @@ heap_sort_proc :: proc(array: $A/[]$T, f: proc(T, T) -> int) {
 	}
 }
 
-// @(deprecated="use sort.sort_slice or slice.sort")
 heap_sort :: proc(array: $A/[]$T) where intrinsics.type_is_ordered(T) {
 	sift :: proc(a: A, pi: int, n: int) #no_bounds_check {
 		p := pi

core/strconv/deprecated.odin

@@ -0,0 +1,38 @@
+package strconv
+
+// (2025-06-05) These procedures are to be removed at a later release.
+
+@(deprecated="Use write_bits instead")
+append_bits :: proc(buf: []byte, x: u64, base: int, is_signed: bool, bit_size: int, digits: string, flags: Int_Flags) -> string {
+	return write_bits(buf, x, base, is_signed, bit_size, digits, flags)
+}
+
+@(deprecated="Use write_bits_128 instead")
+append_bits_128 :: proc(buf: []byte, x: u128, base: int, is_signed: bool, bit_size: int, digits: string, flags: Int_Flags) -> string {
+	return write_bits_128(buf, x, base, is_signed, bit_size, digits, flags)
+}
+
+@(deprecated="Use write_bool instead")
+append_bool :: proc(buf: []byte, b: bool) -> string {
+	return write_bool(buf, b)
+}
+
+@(deprecated="Use write_uint instead")
+append_uint :: proc(buf: []byte, u: u64, base: int) -> string {
+	return write_uint(buf, u, base)
+}
+
+@(deprecated="Use write_int instead")
+append_int :: proc(buf: []byte, i: i64, base: int) -> string {
+	return write_int(buf, i, base)
+}
+
+@(deprecated="Use write_u128 instead")
+append_u128 :: proc(buf: []byte, u: u128, base: int) -> string {
+	return write_u128(buf, u, base)
+}
+
+@(deprecated="Use write_float instead")
+append_float :: proc(buf: []byte, f: f64, fmt: byte, prec, bit_size: int) -> string {
+	return write_float(buf, f, fmt, prec, bit_size)
+}

core/strconv/integers.odin

@@ -48,7 +48,7 @@ is_integer_negative :: proc(x: u64, is_signed: bool, bit_size: int) -> (u: u64,
 	return
 }
 /*
-Appends the string representation of an integer to a buffer with specified base, flags, and digit set.
+Writes the string representation of an integer to a buffer with specified base, flags, and digit set.
 
 **Inputs**
 - buf: The buffer to append the integer representation to
@@ -62,9 +62,9 @@ Appends the string representation of an integer to a buffer with specified base,
 **Returns**
 - The string containing the integer representation appended to the buffer
 */
-append_bits :: proc(buf: []byte, x: u64, base: int, is_signed: bool, bit_size: int, digits: string, flags: Int_Flags) -> string {
+write_bits :: proc(buf: []byte, x: u64, base: int, is_signed: bool, bit_size: int, digits: string, flags: Int_Flags) -> string {
 	if base < 2 || base > MAX_BASE {
-		panic("strconv: illegal base passed to append_bits")
+		panic("strconv: illegal base passed to write_bits")
 	}
 
 	a: [129]byte
@@ -146,7 +146,7 @@ is_integer_negative_128 :: proc(x: u128, is_signed: bool, bit_size: int) -> (u:
 	return
 }
 /*
-Appends the string representation of a 128-bit integer to a buffer with specified base, flags, and digit set.
+Writes the string representation of a 128-bit integer to a buffer with specified base, flags, and digit set.
 
 **Inputs**
 - buf: The buffer to append the integer representation to
@@ -158,11 +158,11 @@ Appends the string representation of a 128-bit integer to a buffer with specifie
 - flags: The Int_Flags bit set to control integer formatting
 
 **Returns**
-- The string containing the integer representation appended to the buffer
+- The string containing the integer representation written to the buffer
 */
-append_bits_128 :: proc(buf: []byte, x: u128, base: int, is_signed: bool, bit_size: int, digits: string, flags: Int_Flags) -> string {
+write_bits_128 :: proc(buf: []byte, x: u128, base: int, is_signed: bool, bit_size: int, digits: string, flags: Int_Flags) -> string {
 	if base < 2 || base > MAX_BASE {
-		panic("strconv: illegal base passed to append_bits")
+		panic("strconv: illegal base passed to write_bits")
 	}
 
 	a: [140]byte

core/strconv/strconv.odin

@@ -1095,6 +1095,39 @@ parse_f64_prefix :: proc(str: string) -> (value: f64, nr: int, ok: bool) {
 		return transmute(f64)bits, ok
 	}
 
+	if len(str) > 2 && str[0] == '0' && str[1] == 'h' {
+		nr = 2
+
+		as_int: u64
+		digits: int
+		for r in str[2:] {
+			if r == '_' {
+				nr += 1
+				continue
+			}
+			v := u64(_digit_value(r))
+			if v >= 16 {
+				break
+			}
+			as_int *= 16
+			as_int += v
+			digits += 1
+		}
+		nr += digits
+		ok = len(str) == nr
+
+		switch digits {
+		case 4:
+			value = cast(f64)transmute(f16)cast(u16)as_int
+		case 8:
+			value = cast(f64)transmute(f32)cast(u32)as_int
+		case 16:
+			value = transmute(f64)as_int
+		case:
+			ok = false
+		}
+		return
+	}
 
 	if value, nr, ok = check_special(str); ok {
 		return
@@ -1418,19 +1451,19 @@ parse_quaternion64 :: proc(str: string, n: ^int = nil) -> (value: quaternion64,
 	return cast(quaternion64)v, ok
 }
 /*
-Appends a boolean value as a string to the given buffer
+Writes a boolean value as a string to the given buffer
 
 **Inputs**
-- buf: The buffer to append the boolean value to
+- buf: The buffer to write the boolean value to
-- b: The boolean value to be appended
+- b: The boolean value to be written
 
 Example:
 
 	import "core:fmt"
 	import "core:strconv"
-	append_bool_example :: proc() {
+	write_bool_example :: proc() {
 		buf: [6]byte
-		result := strconv.append_bool(buf[:], true)
+		result := strconv.write_bool(buf[:], true)
 		fmt.println(result, buf)
 	}
 
@@ -1439,9 +1472,9 @@ Output:
 	true [116, 114, 117, 101, 0, 0]
 
 **Returns**
-- The resulting string after appending the boolean value
+- The resulting string after writing the boolean value
 */
-append_bool :: proc(buf: []byte, b: bool) -> string {
+write_bool :: proc(buf: []byte, b: bool) -> string {
 	n := 0
 	if b {
 		n = copy(buf, "true")
@@ -1451,20 +1484,20 @@ append_bool :: proc(buf: []byte, b: bool) -> string {
 	return string(buf[:n])
 }
 /*
-Appends an unsigned integer value as a string to the given buffer with the specified base
+Writes an unsigned integer value as a string to the given buffer with the specified base
 
 **Inputs**
-- buf: The buffer to append the unsigned integer value to
+- buf: The buffer to write the unsigned integer value to
-- u: The unsigned integer value to be appended
+- u: The unsigned integer value to be written
 - base: The base to use for converting the integer value
 
 Example:
 
 	import "core:fmt"
 	import "core:strconv"
-	append_uint_example :: proc() {
+	write_uint_example :: proc() {
 		buf: [4]byte
-		result := strconv.append_uint(buf[:], 42, 16)
+		result := strconv.write_uint(buf[:], 42, 16)
 		fmt.println(result, buf)
 	}
 
@@ -1473,26 +1506,26 @@ Output:
 	2a [50, 97, 0, 0]
 
 **Returns**
-- The resulting string after appending the unsigned integer value
+- The resulting string after writing the unsigned integer value
 */
-append_uint :: proc(buf: []byte, u: u64, base: int) -> string {
+write_uint :: proc(buf: []byte, u: u64, base: int) -> string {
-	return append_bits(buf, u, base, false, 8*size_of(uint), digits, nil)
+	return write_bits(buf, u, base, false, 8*size_of(uint), digits, nil)
 }
 /*
-Appends a signed integer value as a string to the given buffer with the specified base
+Writes a signed integer value as a string to the given buffer with the specified base
 
 **Inputs**
-- buf: The buffer to append the signed integer value to
+- buf: The buffer to write the signed integer value to
-- i: The signed integer value to be appended
+- i: The signed integer value to be written
 - base: The base to use for converting the integer value
 
 Example:
 
 	import "core:fmt"
 	import "core:strconv"
-	append_int_example :: proc() {
+	write_int_example :: proc() {
 		buf: [4]byte
-		result := strconv.append_int(buf[:], -42, 10)
+		result := strconv.write_int(buf[:], -42, 10)
 		fmt.println(result, buf)
 	}
 
@@ -1501,16 +1534,16 @@ Output:
 	-42 [45, 52, 50, 0]
 
 **Returns**
-- The resulting string after appending the signed integer value
+- The resulting string after writing the signed integer value
 */
-append_int :: proc(buf: []byte, i: i64, base: int) -> string {
+write_int :: proc(buf: []byte, i: i64, base: int) -> string {
-	return append_bits(buf, u64(i), base, true, 8*size_of(int), digits, nil)
+	return write_bits(buf, u64(i), base, true, 8*size_of(int), digits, nil)
 }
 
 
 
-append_u128 :: proc(buf: []byte, u: u128, base: int) -> string {
+write_u128 :: proc(buf: []byte, u: u128, base: int) -> string {
-	return append_bits_128(buf, u, base, false, 8*size_of(uint), digits, nil)
+	return write_bits_128(buf, u, base, false, 8*size_of(uint), digits, nil)
 }
 
 /*
@@ -1538,7 +1571,7 @@ Output:
 - The resulting string after converting the integer value
 */
 itoa :: proc(buf: []byte, i: int) -> string {
-	return append_int(buf, i64(i), 10)
+	return write_int(buf, i64(i), 10)
 }
 /*
 Converts a string to an integer value
@@ -1590,14 +1623,14 @@ atof :: proc(s: string) -> f64 {
 	v, _  := parse_f64(s)
 	return v
 }
-// Alias to `append_float`
+// Alias to `write_float`
-ftoa :: append_float
+ftoa :: write_float
 /*
-Appends a float64 value as a string to the given buffer with the specified format and precision
+Writes a float64 value as a string to the given buffer with the specified format and precision
 
 **Inputs**
-- buf: The buffer to append the float64 value to
+- buf: The buffer to write the float64 value to
-- f: The float64 value to be appended
+- f: The float64 value to be written
 - fmt: The byte specifying the format to use for the conversion
 - prec: The precision to use for the conversion
 - bit_size: The size of the float in bits (32 or 64)
@@ -1606,9 +1639,9 @@ Example:
 
 	import "core:fmt"
 	import "core:strconv"
-	append_float_example :: proc() {
+	write_float_example :: proc() {
 		buf: [8]byte
-		result := strconv.append_float(buf[:], 3.14159, 'f', 2, 64)
+		result := strconv.write_float(buf[:], 3.14159, 'f', 2, 64)
 		fmt.println(result, buf)
 	}
 
@@ -1617,16 +1650,16 @@ Output:
 	+3.14 [43, 51, 46, 49, 52, 0, 0, 0]
 
 **Returns**
-- The resulting string after appending the float
+- The resulting string after writing the float
 */
-append_float :: proc(buf: []byte, f: f64, fmt: byte, prec, bit_size: int) -> string {
+write_float :: proc(buf: []byte, f: f64, fmt: byte, prec, bit_size: int) -> string {
 	return string(generic_ftoa(buf, f, fmt, prec, bit_size))
 }
 /*
-Appends a quoted string representation of the input string to a given byte slice and returns the result as a string
+Writes a quoted string representation of the input string to a given byte slice and returns the result as a string
 
 **Inputs**
-- buf: The byte slice to which the quoted string will be appended
+- buf: The byte slice to which the quoted string will be written
 - str: The input string to be quoted
 
 !! ISSUE !! NOT EXPECTED -- "\"hello\"" was expected
@@ -1646,7 +1679,7 @@ Output:
 	"'h''e''l''l''o'" [34, 39, 104, 39, 39, 101, 39, 39, 108, 39, 39, 108, 39, 39, 111, 39, 34, 0, 0, 0]
 
 **Returns**
-- The resulting string after appending the quoted string representation
+- The resulting string after writing the quoted string representation
 */
 quote :: proc(buf: []byte, str: string) -> string {
 	write_byte :: proc(buf: []byte, i: ^int, bytes: ..byte) {
@@ -1686,10 +1719,10 @@ quote :: proc(buf: []byte, str: string) -> string {
 	return string(buf[:i])
 }
 /*
-Appends a quoted rune representation of the input rune to a given byte slice and returns the result as a string
+Writes a quoted rune representation of the input rune to a given byte slice and returns the result as a string
 
 **Inputs**
-- buf: The byte slice to which the quoted rune will be appended
+- buf: The byte slice to which the quoted rune will be written
 - r: The input rune to be quoted
 
 Example:
@@ -1707,7 +1740,7 @@ Output:
 	'A' [39, 65, 39, 0]
 
 **Returns**
-- The resulting string after appending the quoted rune representation
+- The resulting string after writing the quoted rune representation
 */
 quote_rune :: proc(buf: []byte, r: rune) -> string {
 	write_byte :: proc(buf: []byte, i: ^int, bytes: ..byte) {
@@ -1750,7 +1783,7 @@ quote_rune :: proc(buf: []byte, r: rune) -> string {
 		if r < 32 {
 			write_string(buf, &i, "\\x")
 			b: [2]byte
-			s := append_bits(b[:], u64(r), 16, true, 64, digits, nil)
+			s := write_bits(b[:], u64(r), 16, true, 64, digits, nil)
 			switch len(s) {
 			case 0: write_string(buf, &i, "00")
 			case 1: write_rune(buf, &i, '0')