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Handle null and file symbol on doInitialization

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77354 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bruno Cardoso Lopes 2009-07-28 19:25:33 +00:00
parent b180d992d8
commit 50bc204291
2 changed files with 8 additions and 9 deletions
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2
lib/CodeGen/ELFCodeEmitter.cpp
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@ -36,7 +36,7 @@ namespace llvm {
/// startFunction - This callback is invoked when a new machine function is
/// about to be emitted.
void ELFCodeEmitter::startFunction(MachineFunction &MF) {
DEBUG(errs() << "processing function: "
DEBUG(errs() << "processing function: "
<< MF.getFunction()->getName() << "\n");
// Get the ELF Section that this function belongs in.

15
lib/CodeGen/ELFWriter.cpp
View File

@ -143,6 +143,11 @@ bool ELFWriter::doInitialization(Module &M) {
// Add the null section, which is required to be first in the file.
getNullSection();
// The first entry in the symtab is the null symbol and the second
// is a local symbol containing the module/file name
SymbolList.push_back(new ELFSym());
SymbolList.push_back(ELFSym::getFileSym());
return false;
}
@ -189,7 +194,7 @@ ELFSection &ELFWriter::getConstantPoolSection(MachineConstantPoolEntry &CPE) {
const TargetLoweringObjectFile &TLOF =
TM.getTargetLowering()->getObjFileLowering();
return getSection(TLOF.getSectionForMergeableConstant(Kind)->getName(),
ELFSection::SHT_PROGBITS,
ELFSection::SHF_MERGE | ELFSection::SHF_ALLOC,
@ -320,7 +325,7 @@ void ELFWriter::EmitGlobal(const GlobalValue *GV) {
const TargetLoweringObjectFile &TLOF =
TM.getTargetLowering()->getObjFileLowering();
// Get ELF section from TAI
// Get the ELF section where this global belongs from TLOF
const Section *S = TLOF.SectionForGlobal(GV, TM);
unsigned SectionFlags = getElfSectionFlags(S->getKind());
@ -522,9 +527,6 @@ bool ELFWriter::doFinalization(Module &M) {
if (TAI->getNonexecutableStackDirective())
getNonExecStackSection();
// Emit module name
SymbolList.push_back(ELFSym::getFileSym());
// Emit a symbol for each section created until now, skip null section
for (unsigned i = 1, e = SectionList.size(); i < e; ++i) {
ELFSection &ES = *SectionList[i];
@ -798,9 +800,6 @@ void ELFWriter::EmitSymbolTable() {
// Size of each symtab entry.
SymTab.EntSize = TEW->getSymTabEntrySize();
// The first entry in the symtab is the null symbol
SymbolList.insert(SymbolList.begin(), new ELFSym());
// Reorder the symbol table with local symbols first!
unsigned FirstNonLocalSymbol = SortSymbols();