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| author | Dimitry Andric <dimitry@andric.com> | 2021-05-04 16:58:54 +0200 |
|---|---|---|
| committer | Dimitry Andric <dimitry@andric.com> | 2021-05-04 18:16:09 +0200 |
| commit | 7e83a7f1fdfcc2edde61f0a535f9d7a56f531db9 (patch) | |
| tree | e8a38d6550ef2c740cea5eeded5c931e4200466d /llvm/tools/llvm-objdump/llvm-objdump.cpp | |
| parent | 5285748c2c764c1d7fb3f882ba9f11ed79f676a1 (diff) | |
| download | llvm-7e83a7f1fdfcc2edde61f0a535f9d7a56f531db9.zip llvm-7e83a7f1fdfcc2edde61f0a535f9d7a56f531db9.tar.gz llvm-7e83a7f1fdfcc2edde61f0a535f9d7a56f531db9.tar.bz2 | |
Reland "[MC][ELF] Work around R_MIPS_LO16 relocation handling problem"
This fixes PR49821, and avoids "ld.lld: error: test.o:(.rodata.str1.1):
offset is outside the section" errors when linking MIPS objects with
negative R_MIPS_LO16 implicit addends.
ld.lld handles R_MIPS_HI16/R_MIPS_LO16 separately, not as a whole, so it
doesn't know that an R_MIPS_HI16 with implicit addend 1 and an
R_MIPS_LO16 with implicit addend -32768 represents 32768, which is in
range of a MergeInputSection. We could introduce a new RelExpr member
(like R_RISCV_PC_INDIRECT for R_RISCV_PCREL_HI20 / R_RISCV_PCREL_LO12)
but the complexity is unnecessary given that GNU as keeps the original
symbol for this case as well.
Adds a new test case for PR49821, and also updates two other test cases
that are affected by this change.
Reviewed By: atanasyan, MaskRay
Differential Revision: https://reviews.llvm.org/D101773
Diffstat (limited to 'llvm/tools/llvm-objdump/llvm-objdump.cpp')
0 files changed, 0 insertions, 0 deletions