Remove explicit __compact_unwind entries from x64 assembler #111530
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* main: (89 commits) Add Dispose for X509Chain instance (dotnet#110740) Fix XML comment on regex split enumerator (dotnet#111572) JIT: tolerate missing InitClass map in SPMI (dotnet#111555) Build ilasm/ildasm packages for the host machine (dotnet#111512) Unicode 16.0 Support (dotnet#111469) Improve performance of interface method resolution in ILC (dotnet#103066) Fix building the host-targeting components and packing ILC (dotnet#111552) Improve JSON validation perf (dotnet#111332) Update github-merge-flow.jsonc to autoflow 9.0 to 9.0-staging (dotnet#111549) Include GPL-3 licence text in the notice (dotnet#111528) Remove explicit __compact_unwind entries from x64 assembler (dotnet#111530) Add MemoryExtensions overloads with comparer (dotnet#110197) Avoid capturing the ExecutionContext for the whole HTTP connection lifetime (dotnet#111475) Forward DefaultArtifactVisibility down from the VMR orchestrator (dotnet#111513) Fix relocs errors on riscv64 (dotnet#111317) Added JITDUMP_USE_ARCH_TIMESTAMP support. (dotnet#111359) add rcl/rcr tp and latency info (dotnet#111442) Fix stack overflow in compiler-generated state (dotnet#109207) Produce a package with the host-running ILC for repos in the VMR (dotnet#111443) Delete dead code in ilasm PE writer (dotnet#111218) ...
This was referenced Feb 5, 2025
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This was originally added in dotnet/coreclr@52bcc7c. At that point in time LLVM was not generating the
__compact_unwindsection in object files and LD64 was trying to convert DWARF instructions to compact unwinding information which was buggy. The compiler landscape has changed significantly since then. LLVM now generates the__compact_unwindentries from DWARF information, which results in duplicated entries in the object file. Additionally, the algorithm in LD64 was changed too and LD64 itself is now deprecated and replaced by ld-prime linker.Fixes dotnet/sdk#46006