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Unify memset usage across platforms and core:c/libc

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This commit is contained in:
gingerBill
2021-09-10 15:59:14 +01:00
parent c519ab9401
commit 12af657369
7 changed files with 4 additions and 174 deletions
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core/runtime/procs_essence.odin
-23
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@@ -1,23 +0,0 @@
//+private
package runtime
@(link_name="memset")
memset :: proc "c" (ptr: rawptr, val: i32, len: int) -> rawptr {
addr := 0x1000 + 196 * size_of(int);
fp := (rawptr(((^uintptr)(uintptr(addr)))^));
return ((proc "c" (rawptr, i32, int) -> rawptr)(fp))(ptr, val, len);
}
@(link_name="memmove")
memmove :: proc "c" (dst, src: rawptr, len: int) -> rawptr {
addr := 0x1000 + 195 * size_of(int);
fp := (rawptr(((^uintptr)(uintptr(addr)))^));
return ((proc "c" (rawptr, rawptr, int) -> rawptr)(fp))(dst, src, len);
}
@(link_name="memcpy")
memcpy :: proc "c" (dst, src: rawptr, len: int) -> rawptr {
addr := 0x1000 + 194 * size_of(int);
fp := (rawptr(((^uintptr)(uintptr(addr)))^));
return ((proc "c" (rawptr, rawptr, int) -> rawptr)(fp))(dst, src, len);
}
core/runtime/procs_unix.odin
-17
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@@ -1,17 +0,0 @@
//+build linux, darwin, freebsd
//+private
package runtime
import "core:intrinsics"
@(link_name="memset")
memset :: proc "c" (ptr: rawptr, val: i32, len: int) -> rawptr #no_bounds_check {
if ptr != nil && len != 0 {
b := byte(val)
p := ([^]byte)(ptr)[:len]
for v in &p {
v = b
}
}
return ptr
}
core/runtime/procs_wasm32.odin
-15
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@@ -1,15 +0,0 @@
//+build wasm32
//+private
package runtime
@(link_name="memset")
memset :: proc "c" (ptr: rawptr, val: i32, len: int) -> rawptr #no_bounds_check {
if ptr != nil && len != 0 {
b := byte(val)
p := ([^]byte)(ptr)[:len]
for v in &p {
v = b
}
}
return ptr
}
core/runtime/procs_windows_386.odin
-53
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@@ -26,56 +26,3 @@ windows_trap_type_assertion :: proc "contextless" () -> ! {
@(private, require, link_name="_tls_index") _tls_index: u32
@(private, require, link_name="_tls_array") _tls_array: u32
@(link_name="memcpy")
memcpy :: proc "c" (dst, src: rawptr, len: int) -> rawptr {
if dst == nil || src == nil || len == 0 || dst == src {
return dst
}
d := ([^]byte)(dst)
s := ([^]byte)(src)
for i in 0..<len {
d[i] = s[i]
}
return dst;
}
@(link_name="memmove")
memmove :: proc "c" (dst, src: rawptr, len: int) -> rawptr {
if dst == nil || src == nil || len == 0 || dst == src {
return dst
}
d := ([^]byte)(dst)
s := ([^]byte)(src)
if s < d && d < s[len:] {
// Overlap
for i := len-1; len >= 0; i -= 1 {
d[i] = s[i]
}
} else {
for i in 0..<len {
d[i] = s[i]
}
}
return dst
}
@(link_name="memset")
memset :: proc "c" (ptr: rawptr, val: i32, len: int) -> rawptr {
if ptr != nil && len != 0 {
b := byte(val)
p := ([^]byte)(ptr)[:len]
for v in &p {
v = b
}
}
return ptr
}
core/runtime/procs_windows_amd64.odin
-56
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@@ -26,59 +26,3 @@ windows_trap_type_assertion :: proc "contextless" () -> ! {
// @private
// @(link_name="_fltused")
// _fltused: i32 = 0x9875;
// @(link_name="memcpy")
memcpy :: proc "c" (dst, src: rawptr, len: int) -> rawptr {
foreign kernel32 {
RtlCopyMemory :: proc "c" (dst, src: rawptr, len: int) ---
}
if dst == nil || src == nil || len == 0 {
return dst
}
RtlCopyMemory(dst, src, len)
return dst
}
// @(link_name="memmove")
memmove :: proc "c" (dst, src: rawptr, len: int) -> rawptr {
foreign kernel32 {
RtlMoveMemory :: proc "c" (dst, src: rawptr, len: int) ---
}
if dst == nil || src == nil || len == 0 {
return dst
}
RtlMoveMemory(dst, src, len)
return dst
}
// @(link_name="memset")
memset :: proc "c" (ptr: rawptr, val: i32, len: int) -> rawptr #no_bounds_check {
if ptr != nil && len != 0 {
b := byte(val)
p := ([^]byte)(ptr)[:len]
for v in &p {
v = b
}
}
return ptr
}
// @(link_name="memcmp")
// memcmp :: proc "c" (dst, src: rawptr, len: int) -> i32 {
// if dst == nil || src == nil {
// return 0;
// }
// if dst == src {
// return 0;
// }
// d, s := uintptr(dst), uintptr(src);
// n := uintptr(len);
// for i := uintptr(0); i < n; i += 1 {
// x, y := (^byte)(d+i)^, (^byte)(s+i)^;
// if x != y {
// return x < y ? -1 : +1;
// }
// }
// return 0;
// }