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| author | Matthias Krüger <matthias.krueger@famsik.de> | 2025-02-10 16:38:28 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-02-10 16:38:28 +0100 |
| commit | 4fff3209df23e432539260f609c79c0acbdf8472 (patch) | |
| tree | 3ddef2e5a204bb57c6a8621cd9e84750111f819d /compiler/rustc_codegen_llvm/src/errors.rs | |
| parent | 277dda4ed346cb6946743d6073816e5c2da08755 (diff) | |
| parent | 9da96a65e1c20a99a644be70661bfdb7bfb5b23d (diff) | |
| download | rust-4fff3209df23e432539260f609c79c0acbdf8472.tar.gz rust-4fff3209df23e432539260f609c79c0acbdf8472.zip | |
Rollup merge of #136791 - nicholasbishop:bishop-disable-dwarf, r=jieyouxu
Disable DWARF in linker options for i686-unknown-uefi This fixes an lld warning: > warning: linker stderr: rust-lld: section name .debug_frame is longer than 8 characters and will use a non-standard string table See https://reviews.llvm.org/D69594 for details of where the warning was added. This warning only occurs with the i686 UEFI target, not x86_64 or aarch64. The x86_64 target uses an LLVM target of `x86_64-unknown-windows` and aarch64 uses `aarch64-unknown-windows`, but i686 uses `i686-unknown-windows-gnu` (note the `-gnu`). See comments in `i686_unknown_uefi.rs` for details of why. The `.debug_frame` section should not actually be needed; UEFI targets provide a separate PDB file for debugging. Disable DWARF (and by extension the `.debug_frame` section) by passing `/DEBUG:NODWARF` to lld. Tested with: ``` export RUSTC_LOG=rustc_codegen_ssa::back::link=info cargo +stage1 build --release --target i686-unknown-uefi ``` This issue was originally raised here: https://github.com/rust-lang/rust/pull/119286#issuecomment-2612746162. See also https://github.com/rust-lang/rust/issues/136096. It was suggested to file an LLVM bug, but I don't think LLVM is actually doing anything wrong as such. CC `@dvdhrm` `@jyn514` let me know if you have any feedback on this approach
Diffstat (limited to 'compiler/rustc_codegen_llvm/src/errors.rs')
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