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Delay the creation of eh_frame so that the user can change the defaults.

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Add support for SHT_X86_64_UNWIND.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124059 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
2011-01-23 05:43:40 +00:00
parent 11e222da1f
commit 0cf5e3d51d
8 changed files with 51 additions and 26 deletions
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43
lib/CodeGen/TargetLoweringObjectFileImpl.cpp
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@ -134,11 +134,6 @@ void TargetLoweringObjectFileELF::Initialize(MCContext &Ctx,
getContext().getELFSection(".gcc_except_table", ELF::SHT_PROGBITS,
ELF::SHF_ALLOC,
SectionKind::getReadOnly());
EHFrameSection =
getContext().getELFSection(".eh_frame", ELF::SHT_PROGBITS,
ELF::SHF_ALLOC,
SectionKind::getDataRel());
// Debug Info Sections.
DwarfAbbrevSection =
getContext().getELFSection(".debug_abbrev", ELF::SHT_PROGBITS, 0,
@ -175,6 +170,11 @@ void TargetLoweringObjectFileELF::Initialize(MCContext &Ctx,
SectionKind::getMetadata());
}
const MCSection *TargetLoweringObjectFileELF::getEHFrameSection() const {
return getContext().getELFSection(".eh_frame", ELF::SHT_PROGBITS,
ELF::SHF_ALLOC,
SectionKind::getDataRel());
}
static SectionKind
getELFKindForNamedSection(StringRef Name, SectionKind K) {
@ -581,14 +581,6 @@ void TargetLoweringObjectFileMachO::Initialize(MCContext &Ctx,
// Exception Handling.
LSDASection = getContext().getMachOSection("__TEXT", "__gcc_except_tab", 0,
SectionKind::getReadOnlyWithRel());
EHFrameSection =
getContext().getMachOSection("__TEXT", "__eh_frame",
MCSectionMachO::S_COALESCED |
MCSectionMachO::S_ATTR_NO_TOC |
MCSectionMachO::S_ATTR_STRIP_STATIC_SYMS |
MCSectionMachO::S_ATTR_LIVE_SUPPORT,
SectionKind::getReadOnly());
// Debug Information.
DwarfAbbrevSection =
getContext().getMachOSection("__DWARF", "__debug_abbrev",
@ -642,6 +634,15 @@ void TargetLoweringObjectFileMachO::Initialize(MCContext &Ctx,
TLSExtraDataSection = TLSTLVSection;
}
const MCSection *TargetLoweringObjectFileMachO::getEHFrameSection() const {
return getContext().getMachOSection("__TEXT", "__eh_frame",
MCSectionMachO::S_COALESCED |
MCSectionMachO::S_ATTR_NO_TOC |
MCSectionMachO::S_ATTR_STRIP_STATIC_SYMS |
MCSectionMachO::S_ATTR_LIVE_SUPPORT,
SectionKind::getReadOnly());
}
const MCSection *TargetLoweringObjectFileMachO::
getExplicitSectionGlobal(const GlobalValue *GV, SectionKind Kind,
Mangler *Mang, const TargetMachine &TM) const {
@ -873,13 +874,6 @@ void TargetLoweringObjectFileCOFF::Initialize(MCContext &Ctx,
COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
COFF::IMAGE_SCN_MEM_READ,
SectionKind::getReadOnly());
EHFrameSection =
getContext().getCOFFSection(".eh_frame",
COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
COFF::IMAGE_SCN_MEM_READ |
COFF::IMAGE_SCN_MEM_WRITE,
SectionKind::getDataRel());
// Debug info.
DwarfAbbrevSection =
getContext().getCOFFSection(".debug_abbrev",
@ -943,6 +937,15 @@ void TargetLoweringObjectFileCOFF::Initialize(MCContext &Ctx,
SectionKind::getMetadata());
}
const MCSection *TargetLoweringObjectFileCOFF::getEHFrameSection() const {
return getContext().getCOFFSection(".eh_frame",
COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
COFF::IMAGE_SCN_MEM_READ |
COFF::IMAGE_SCN_MEM_WRITE,
SectionKind::getDataRel());
}
static unsigned
getCOFFSectionFlags(SectionKind K) {
unsigned Flags = 0;