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DwarfDebug: Reduce code duplication for sec offset emission

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196414 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Blaikie 2013-12-04 21:31:26 +00:00
parent ae49c38733
commit a18dcd4cce
2 changed files with 32 additions and 56 deletions
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84
lib/CodeGen/AsmPrinter/DwarfDebug.cpp
View File

@ -724,6 +724,28 @@ unsigned DwarfDebug::getOrCreateSourceID(StringRef FileName, StringRef DirName,
return SrcId;
}
static void addSectionLabel(AsmPrinter *Asm, Unit *U, DIE *D,
dwarf::Attribute A, const MCSymbol *L,
const MCSymbol *Sec) {
if (Asm->MAI->doesDwarfUseRelocationsAcrossSections())
U->addSectionLabel(D, A, L);
else
U->addSectionDelta(D, A, L, Sec);
}
void DwarfDebug::addGnuPubAttributes(Unit *U, DIE *D) const {
if (!GenerateGnuPubSections)
return;
addSectionLabel(Asm, U, D, dwarf::DW_AT_GNU_pubnames,
Asm->GetTempSymbol("gnu_pubnames", U->getUniqueID()),
DwarfGnuPubNamesSectionSym);
addSectionLabel(Asm, U, D, dwarf::DW_AT_GNU_pubtypes,
Asm->GetTempSymbol("gnu_pubtypes", U->getUniqueID()),
DwarfGnuPubTypesSectionSym);
}
// Create new CompileUnit for the given metadata node with tag
// DW_TAG_compile_unit.
CompileUnit *DwarfDebug::constructCompileUnit(DICompileUnit DIUnit) {
@ -783,29 +805,7 @@ CompileUnit *DwarfDebug::constructCompileUnit(DICompileUnit DIUnit) {
if (!CompilationDir.empty())
NewCU->addString(Die, dwarf::DW_AT_comp_dir, CompilationDir);
// Flags to let the linker know we have emitted new style pubnames. Only
// emit it here if we don't have a skeleton CU for split dwarf.
if (GenerateGnuPubSections) {
if (Asm->MAI->doesDwarfUseRelocationsAcrossSections())
NewCU->addSectionLabel(
Die, dwarf::DW_AT_GNU_pubnames,
Asm->GetTempSymbol("gnu_pubnames", NewCU->getUniqueID()));
else
NewCU->addSectionDelta(
Die, dwarf::DW_AT_GNU_pubnames,
Asm->GetTempSymbol("gnu_pubnames", NewCU->getUniqueID()),
DwarfGnuPubNamesSectionSym);
if (Asm->MAI->doesDwarfUseRelocationsAcrossSections())
NewCU->addSectionLabel(
Die, dwarf::DW_AT_GNU_pubtypes,
Asm->GetTempSymbol("gnu_pubtypes", NewCU->getUniqueID()));
else
NewCU->addSectionDelta(
Die, dwarf::DW_AT_GNU_pubtypes,
Asm->GetTempSymbol("gnu_pubtypes", NewCU->getUniqueID()),
DwarfGnuPubTypesSectionSym);
}
addGnuPubAttributes(NewCU, Die);
}
if (DIUnit.isOptimized())
@ -3018,41 +3018,13 @@ CompileUnit *DwarfDebug::constructSkeletonCU(const CompileUnit *CU) {
if (!CompilationDir.empty())
NewCU->addLocalString(Die, dwarf::DW_AT_comp_dir, CompilationDir);
// Flags to let the linker know we have emitted new style pubnames.
if (GenerateGnuPubSections) {
if (Asm->MAI->doesDwarfUseRelocationsAcrossSections())
NewCU->addSectionLabel(
Die, dwarf::DW_AT_GNU_pubnames,
Asm->GetTempSymbol("gnu_pubnames", NewCU->getUniqueID()));
else
NewCU->addSectionDelta(
Die, dwarf::DW_AT_GNU_pubnames,
Asm->GetTempSymbol("gnu_pubnames", NewCU->getUniqueID()),
DwarfGnuPubNamesSectionSym);
if (Asm->MAI->doesDwarfUseRelocationsAcrossSections())
NewCU->addSectionLabel(
Die, dwarf::DW_AT_GNU_pubtypes,
Asm->GetTempSymbol("gnu_pubtypes", NewCU->getUniqueID()));
else
NewCU->addSectionDelta(
Die, dwarf::DW_AT_GNU_pubtypes,
Asm->GetTempSymbol("gnu_pubtypes", NewCU->getUniqueID()),
DwarfGnuPubTypesSectionSym);
}
addGnuPubAttributes(NewCU, Die);
// Attribute if we've emitted any ranges and their location for the compile unit.
if (!CU->getRangeLists().empty()) {
if (Asm->MAI->doesDwarfUseRelocationsAcrossSections())
NewCU->addSectionLabel(
Die, dwarf::DW_AT_GNU_ranges_base,
Asm->GetTempSymbol("gnu_ranges", NewCU->getUniqueID()));
else
NewCU->addSectionDelta(
Die, dwarf::DW_AT_GNU_ranges_base,
Asm->GetTempSymbol("gnu_ranges", NewCU->getUniqueID()),
DwarfDebugRangeSectionSym);
}
if (!CU->getRangeLists().empty())
addSectionLabel(Asm, NewCU, Die, dwarf::DW_AT_GNU_ranges_base,
Asm->GetTempSymbol("gnu_ranges", NewCU->getUniqueID()),
DwarfDebugRangeSectionSym);
SkeletonHolder.addUnit(NewCU);

4
lib/CodeGen/AsmPrinter/DwarfDebug.h
View File

@ -627,6 +627,10 @@ class DwarfDebug : public AsmPrinterHandler {
/// \brief Emit the debug str dwo section.
void emitDebugStrDWO();
/// Flags to let the linker know we have emitted new style pubnames. Only
/// emit it here if we don't have a skeleton CU for split dwarf.
void addGnuPubAttributes(Unit *U, DIE *D) const;
/// \brief Create new CompileUnit for the given metadata node with tag
/// DW_TAG_compile_unit.
CompileUnit *constructCompileUnit(DICompileUnit DIUnit);