[all-commits] [llvm/llvm-project] 49ec00: [ELF] Fix IRELATIVE addend if the resolver address...

[Fangrui Song via All-commits]

  Branch: refs/heads/release/22.x
  Home:   https://github.com/llvm/llvm-project
  Commit: 49ec007666c4feb2602c5103aff09206a3900064
      https://github.com/llvm/llvm-project/commit/49ec007666c4feb2602c5103aff09206a3900064
  Author: Fangrui Song <i at maskray.me>
  Date:   2026-02-12 (Thu, 12 Feb 2026)

  Changed paths:
    M lld/ELF/Arch/RISCV.cpp
    M lld/ELF/Config.h
    M lld/ELF/Relocations.cpp
    A lld/test/ELF/loongarch-ifunc-nonpreemptible.s
    M lld/test/ELF/riscv-ifunc-nonpreemptible.s

  Log Message:
  -----------
  [ELF] Fix IRELATIVE addend if the resolver address is updated by linker relaxation (#179063)

For a non-preemptible ifunc, `handleNonPreemptibleIfunc` creates a
cloned
symbol (`directSym`) to compute the addend of the IRELATIVE dynamic
relocation.
This cloned symbol wasn't tracked by `initSymbolAnchors`, so its value
wasn't adjusted during RISC-V/LoongArch linker relaxation.
This caused IRELATIVE addends to point to pre-relaxation addresses.

Fix this by:

- Tracking cloned IRELATIVE symbols in `ctx.irelativeSyms`
- Adding these symbols to `relaxAux->anchors` in `initSymbolAnchors`

(cherry picked from commit bc45ea2c4f24c259814ed5545c403d09ebf89be6)



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