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v0.9.22-alpha changelog

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# Change Log v9.22.0-alpha
# v9.22.0-alpha
## Linker
## Debugger Changes
- Further improved PDB -> RDI conversion performance.
- Capped the number of additional threads / processes spawned for PDB -> RDI
conversion.
- Prioritize PDB -> RDI conversion based on what is actually found to be
necessary by the debugger, rather than converting all PDBs in the order in
which they're discovered.
- Added preliminary support for DWARF -> RDI conversion on Windows.
- The debugger now relies on source file checksums to determine whether or not
a source file is out-of-date with respect to what was compiled when debug info
was produced, rather than just the modification timestamp.
- The debugger now will rely on debug info to detect the language of source code
files, if it cannot infer from the source file's extension, or view settings.
This will enable features like syntax highlighting and hover evaluation in
cases like `.inl` files being included in C++ projects.
- The debugger now will restore the last focused window when continuing
automatically. (#245, #596)
- Watch tables have been simplified in that they no longer have a separate
column for evaluation types, since this was usually taking a lot more space
than it deserved. The type of evaluations is still displayed in watch table
cells, and it can always be evaluated directly via `typeof`.
- Type evaluations have been simplified in watch tables as well; they no longer
have untitled columns for sizes and offsets, this is instead displayed as
an extra note by default. Similar behavior to the original behavior can still
be obtained using the `columns` view, if needed.
- The debugger no longer uses complex `union` types for most registers, and
instead just displays the register value plainly.
- The hover evaluation UI has been made larger when needed.
- The debugger now prefers matching global, function, and type identifiers to
the most relevant debug info and module in context; this fixes evaluation in
some multi-process debugging contexts. (#581)
- Fixed the debugger unnecessarily stripping `enum` type information when
accessed through array operators. (#634)
- The debugger now understands a standalone `unsigned` keyword as an
`unsigned int` type, to match C rules.
- The debugger now uses the current working directory to form the working
directory for targets specified on the command line, to match behavior when
running a command from the command line without the debugger.
- Improved call stack computation performance.
- Improved debugger memory usage over long periods of time.
- Fixed string-pointer comparison not working with not-equal (`!=`) operations.
- Fixed a bug which was causing bad debuggee performance on some threads after
some interactions with the debugger controller.
- Fixed incorrect results when adding two register values. (#642)
- Fixed the interpretation of register expressions in visualizers. (#649)
- Fixed "forever loading" states in disassembly views in some cases. (#643)
- Fixed jittering on window resizing. (#636)
- Fixed the bitmap visualizer crashing in some circumstances relating to
unsupported bitmap sizes. (#444, #563)
- Fixed a crash when an empty `cast()` expression would be evaluated. (#625)
- Fixed a crash when an invalid expression would be visualized using the `text`
view. (#647)
## Linker Changes
- Changed symbol resolution in libaries to match MSVC behavior.
- Optimized image building step to reduce memory usage.
- Linker memory maps all input files by default to lower memory usage. (`/RAD_MEMORY_MAP_FILES`)
- If debug info is available, linker uses it to show file and line number for unresolved relocations.
- Improved base relocation build performance for large images, cutting build time by 70%.
- Added stubs for `/Brepro`, `/D2`, and /ErrorReport to improve compatability with existing response files
- Linker memory maps all input files by default to lower memory usage.
(`/RAD_MEMORY_MAP_FILES`)
- If debug info is available, linker uses it to show file and line number for
unresolved relocations.
- Improved base relocation build performance for large images, cutting build
time by 70%.
- Added stubs for `/Brepro`, `/D2`, and /ErrorReport to improve compatability
with existing response files
- Implemented section garbage collection (`/OPT:REF`)
- Fixed bug where thread local variables pointed to incorrect types.
- Changed rules for weak and undefined symbols, now weak symbol is not allowed to replace an undefined symbol.
- Changed rules for weak and undefined symbols, now weak symbol is not allowed
to replace an undefined symbol.
- Linker no longer creates thunks for imports that don't require them.
## Binary Utility Changes
- The binary utility, like the debugger, now can convert DWARF debug info to
RDI files. When both DWARF and PDB info is present, it can now convert both,
and produce a single final RDI file with all information.
- Textual dumping of RDI files is now done in parallel, massively improving
dumping performance.
- PDB -> Breakpad conversion performance has now been parallelized to a greater
degree, improving performance.