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[Mips] Factor out MIPS relocation addend reading to the separate 

function.

No functional changes.

llvm-svn: 206023
This commit is contained in:
Simon Atanasyan 2014-04-11 07:25:35 +00:00
parent e5b156810a
commit dca4162aa5
1 changed files with 12 additions and 8 deletions
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20
lld/lib/ReaderWriter/ELF/Mips/MipsELFFile.h
View File

@ -105,22 +105,26 @@ private:
auto *ref = new (this->_readerStorage)
ELFReference<ELFT>(&ri, ri.r_offset - symbol.st_value, this->kindArch(),
ri.getType(isMips64EL), ri.getSymbol(isMips64EL));
ref->setAddend(readAddend(symbol, ri, content));
return ref;
}
Reference::Addend readAddend(const Elf_Sym &symbol, const Elf_Rel &ri,
ArrayRef<uint8_t> content) const {
const uint8_t *ap = content.data() + ri.r_offset - symbol.st_value;
switch (ri.getType(isMips64EL)) {
switch (ri.getType(this->_objFile->isMips64EL())) {
case llvm::ELF::R_MIPS_32:
case llvm::ELF::R_MIPS_PC32:
ref->setAddend(*(int32_t *)ap);
break;
return *(int32_t *)ap;
case llvm::ELF::R_MIPS_26:
ref->setAddend(*(int32_t *)ap & 0x3ffffff);
break;
return *(int32_t *)ap & 0x3ffffff;
case llvm::ELF::R_MIPS_HI16:
case llvm::ELF::R_MIPS_LO16:
case llvm::ELF::R_MIPS_GOT16:
ref->setAddend(*(int16_t *)ap);
break;
return *(int16_t *)ap;
default:
return 0;
}
return ref;
}
};