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[Mips] Create and initialize _gp symbol. 

llvm-svn: 199239
This commit is contained in:
Simon Atanasyan 2014-01-14 18:19:52 +00:00
parent 3b1a761374
commit db2e1f35d8
3 changed files with 10 additions and 1 deletions
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7
lld/lib/ReaderWriter/ELF/Mips/MipsTargetHandler.cpp
View File

@ -157,6 +157,7 @@ bool MipsTargetHandler::createImplicitFiles(
if (_context.isDynamic()) {
file->addAbsoluteAtom("_GLOBAL_OFFSET_TABLE_");
file->addAbsoluteAtom("_gp");
file->addAbsoluteAtom("_gp_disp");
}
result.push_back(std::move(file));
@ -173,6 +174,12 @@ void MipsTargetHandler::finalizeSymbolValues() {
assert(gotAtomIter != _targetLayout.absoluteAtoms().end());
(*gotAtomIter)->_virtualAddr = gotSection ? gotSection->virtualAddr() : 0;
auto gpAtomIter = _targetLayout.findAbsoluteAtom("_gp");
assert(gpAtomIter != _targetLayout.absoluteAtoms().end());
(*gpAtomIter)->_virtualAddr =
gotSection ? gotSection->virtualAddr() + _targetLayout.getGPOffset()
: 0;
auto gpDispAtomIter = _targetLayout.findAbsoluteAtom("_gp_disp");
assert(gpDispAtomIter != _targetLayout.absoluteAtoms().end());
_gpDispSymAtom = (*gpDispAtomIter);

2
lld/test/elf/Mips/dynlib-fileheader.test
View File

@ -21,7 +21,7 @@ CHECK: Machine: EM_MIPS (0x8)
CHECK: Version: 1
CHECK: Entry: 0x170
CHECK: ProgramHeaderOffset: 0x34
CHECK: SectionHeaderOffset: 0x21C8
CHECK: SectionHeaderOffset: 0x21D8
CHECK: Flags [ (0x0)
CHECK: ]
CHECK: HeaderSize: 52

2
lld/test/elf/Mips/gotsym.test
View File

@ -9,6 +9,7 @@
# SHARED: 6 .got 00000008 0000000000001000 DATA
# SHARED: SYMBOL TABLE:
# SHARED: 00001000 g *ABS* 00000000 _GLOBAL_OFFSET_TABLE_
# SHARED: 00008ff0 g *ABS* 00000000 _gp
# SHARED: 00008ff0 g *ABS* 00000000 _gp_disp
# RUN: lld -flavor gnu -target mipsel -e main --noinhibit-exec -o %t2 %t1
@ -19,6 +20,7 @@
# EXE: 7 .got 00000008 0000000000401000 DATA
# EXE: SYMBOL TABLE:
# EXE: 00401000 g *ABS* 00000000 _GLOBAL_OFFSET_TABLE_
# EXE: 00408ff0 g *ABS* 00000000 _gp
# EXE: 00408ff0 g *ABS* 00000000 _gp_disp
.global main