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DebugInfo: Don't put fission type units in comdat sections.

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Since type units in the dwo file are handled by a debug aware tool, they
don't need to leverage the ELF comdat grouping to implement
deduplication. Avoid creating all the .group sections for these as a
space optimization.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208930 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Blaikie
2014-05-15 23:18:15 +00:00
parent ae787d36ee
commit f1b1f7fd73
6 changed files with 41 additions and 20 deletions
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10
lib/MC/MCObjectFileInfo.cpp
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@@ -537,6 +537,9 @@ void MCObjectFileInfo::InitELFMCObjectFileInfo(Triple T) {
DwarfInfoDWOSection =
Ctx->getELFSection(".debug_info.dwo", ELF::SHT_PROGBITS, 0,
SectionKind::getMetadata());
DwarfTypesDWOSection =
Ctx->getELFSection(".debug_types.dwo", ELF::SHT_PROGBITS, 0,
SectionKind::getMetadata());
DwarfAbbrevDWOSection =
Ctx->getELFSection(".debug_abbrev.dwo", ELF::SHT_PROGBITS, 0,
SectionKind::getMetadata());
@@ -807,13 +810,6 @@ const MCSection *MCObjectFileInfo::getDwarfTypesSection(uint64_t Hash) const {
SectionKind::getMetadata(), 0, utostr(Hash));
}
const MCSection *
MCObjectFileInfo::getDwarfTypesDWOSection(uint64_t Hash) const {
return Ctx->getELFSection(".debug_types.dwo", ELF::SHT_PROGBITS,
ELF::SHF_GROUP, SectionKind::getMetadata(), 0,
utostr(Hash));
}
void MCObjectFileInfo::InitEHFrameSection() {
if (Env == IsMachO)
EHFrameSection =