[llvm] [ARMAsmBackend] Add checks for relocation addends in assembler (PR #109969)
Peter Smith via llvm-commits
llvm-commits at lists.llvm.org
Thu Sep 26 01:27:57 PDT 2024
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@@ -579,13 +579,24 @@ unsigned ARMAsmBackend::adjustFixupValue(const MCAssembler &Asm,
case ARM::fixup_arm_uncondbl:
case ARM::fixup_arm_condbl:
case ARM::fixup_arm_blx:
+ // Check that the fixup value is legal.
+ Value = Value - 8;
+ if (!isInt<25>(Value)) {
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smithp35 wrote:
FWIW LLD uses isInt<26> https://github.com/llvm/llvm-project/blob/main/lld/ELF/Arch/ARM.cpp#L463
https://github.com/llvm/llvm-project/pull/109969
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