Fangrui Song 13838efa3c
[ELF] Adjust allowed dynamic relocation types for x86-64 (#182905)
First, disallow R_X86_64_PC64 - generally only absolute relocations are
allowed in getDynRel. glibc and musl don't support R_X86_64_PC64 as
dynamic relocations.

Second, support R_X86_64_32 as dynamic relocation for the ILP32 ABI
(x32). GNU ld's behavior looks like:

- R_X86_64_32 => R_X86_64_RELATIVE
- R_X86_64_64 with addend 0 => R_X86_64_RELATIVE
- R_X86_64_64 with non-zero addend => R_X86_64_RELATIVE64 (unsupported
  by musl; compilers do not generate such constructs to the best of my
  knowledge)

For now we require R_X86_64_64 to be resolved at link-time for x32.

Fix #140465
2026-02-23 18:26:56 -08:00
..
2026-01-13 09:34:22 +00:00

LLVM Linker (lld)

This directory and its subdirectories contain source code for the LLVM Linker, a modular cross platform linker which is built as part of the LLVM compiler infrastructure project.

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Benchmarking

In order to make sure various developers can evaluate patches over the same tests, we create a collection of self contained programs.

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