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[Mips] Fix addendum reading for R_MIPS_32 relocation. 

llvm-svn: 203411
This commit is contained in:
Simon Atanasyan 2014-03-09 13:19:54 +00:00
parent 0f96aca940
commit c146325b26
2 changed files with 34 additions and 3 deletions
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16
lld/lib/ReaderWriter/ELF/Mips/MipsELFFile.h
View File

@ -68,9 +68,19 @@ private:
auto *ref = new (this->_readerStorage)
ELFReference<ELFT>(&ri, ri.r_offset - symbol.st_value, this->kindArch(),
ri.getType(isMips64EL), ri.getSymbol(isMips64EL));
int32_t addend =
*(int16_t *)(content.data() + ri.r_offset - symbol.st_value);
ref->setAddend(addend);
const uint8_t *ap = content.data() + ri.r_offset - symbol.st_value;
switch (ri.getType(isMips64EL)) {
case R_MIPS_32:
ref->setAddend(*(int32_t *)ap);
break;
case R_MIPS_26:
ref->setAddend(*(int16_t *)ap);
break;
case R_MIPS_HI16:
case R_MIPS_LO16:
ref->setAddend(*(int16_t *)ap);
break;
}
return ref;
}
};

21
lld/test/elf/Mips/mips32.test Normal file
View File

@ -0,0 +1,21 @@
# Check handling R_MIPS_32 relocation.
#
# RUN: llvm-mc -triple=mipsel -filetype=obj -o=%t-obj %s
# RUN: lld -flavor gnu -target mipsel -o %t-exe %t-obj
# RUN: llvm-objdump -s %t-exe | FileCheck %s
# CHECK: Contents of section .data:
# CHECK-NEXT: 422000 28014000 2c014200 (.@.,.B.
.global __start
.ent __start
__start:
nop
.space 0x20000
la:
nop
.end __start
.data
.4byte __start
.4byte la