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[AMDGPU][MC] Generate relative relocations for allocatable (more particularly, eh_frame) sections

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Reviewed By: scott.linder

Differential Revision: https://reviews.llvm.org/D142453
This commit is contained in:
Juan Manuel MARTINEZ CAAMAÑO 2023-02-10 15:05:05 +01:00
parent f1837c7074
commit c4a250ecea
2 changed files with 18 additions and 2 deletions
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4
llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUELFObjectWriter.cpp
View File

@ -74,9 +74,9 @@ unsigned AMDGPUELFObjectWriter::getRelocType(MCContext &Ctx,
return ELF::R_AMDGPU_REL32;
case FK_Data_4:
case FK_SecRel_4:
return ELF::R_AMDGPU_ABS32;
return IsPCRel ? ELF::R_AMDGPU_REL32 : ELF::R_AMDGPU_ABS32;
case FK_Data_8:
return ELF::R_AMDGPU_ABS64;
return IsPCRel ? ELF::R_AMDGPU_REL64 : ELF::R_AMDGPU_ABS64;
}
if (Fixup.getTargetKind() == AMDGPU::fixup_si_sopp_br) {

16
llvm/test/MC/AMDGPU/cfi_reloc.s Normal file
View File

@ -0,0 +1,16 @@
// RUN: llvm-mc -filetype=obj -triple amdgcn-- -mcpu=kaveri -show-encoding %s | llvm-readobj -r - | FileCheck %s
// CHECK: Relocations [
// CHECK: .rel.eh_frame {
// CHECK: R_AMDGPU_REL32 .text
// CHECK: }
// CHECK: .rel.debug_frame {
// CHECK: R_AMDGPU_ABS64 .text
// CHECK: }
// CHECK: ]
kernel:
.cfi_startproc
.cfi_sections .debug_frame, .eh_frame
s_endpgm
.cfi_endproc