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e7a83d693e
Drop the default.nix comment and the C comment; shorten the patch header. Assisted-by: Claude Code (Claude Fable 5)
24 lines
809 B
Diff
24 lines
809 B
Diff
libunwind: restore _Unwind_CallPersonality for release LLVM
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Nixpkgs builds emscripten with the release LLVM, not the llvm-project
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main commit that emsdk pins. Release LLVM (<= 22.x) emits calls to
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_Unwind_CallPersonality. llvm-project PR #209282 moved that helper into
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libc++abi, renamed to __gxx_wasm_personality_v0. Add the old name back
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as a forwarder to the new name. Remove this patch when llvmPackages
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reaches LLVM 23.
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--- a/system/lib/libunwind/src/Unwind-wasm.c
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+++ b/system/lib/libunwind/src/Unwind-wasm.c
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@@ -95,4 +95,11 @@
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return 0;
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}
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+_Unwind_Reason_Code __gxx_wasm_personality_v0(void *exception_ptr);
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+
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+_LIBUNWIND_EXPORT _Unwind_Reason_Code
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+_Unwind_CallPersonality(void *exception_ptr) {
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+ return __gxx_wasm_personality_v0(exception_ptr);
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+}
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+
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#endif // defined(__WASM_EXCEPTIONS__)
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