Fix reproducible Windows build by stripping COFF symbol table#2085
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edouardparis merged 1 commit intowizardsardine:14.xfrom Apr 9, 2026
Merged
Fix reproducible Windows build by stripping COFF symbol table#2085edouardparis merged 1 commit intowizardsardine:14.xfrom
edouardparis merged 1 commit intowizardsardine:14.xfrom
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The GNU linker appends a COFF symbol table to the PE binary containing auxiliary symbol data (sizes, section offsets) that depends on compilation ordering. Since Rust/LLVM processes codegen units in parallel, this metadata varies between builds even with identical inputs. The COFF symbol table is not used at runtime (Windows ignores it) and modern debugging uses separate PDB files instead. Stripping it with --strip-all removes the non-deterministic data and also reduces binary size significantly
edouardparis
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Apr 9, 2026
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Self-ACK cf7a17e
backport of 2080
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The GNU linker appends a COFF symbol table to the PE binary containing auxiliary symbol data (sizes, section offsets) that depends on compilation ordering. Since Rust/LLVM processes codegen units in parallel, this metadata varies between builds even with identical inputs.
The COFF symbol table is not used at runtime (Windows ignores it) and modern debugging uses separate PDB files instead. Stripping it with --strip-all removes the non-deterministic data and also reduces binary size significantly
this is a backport of #2084