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authorDimitry Andric <dim@FreeBSD.org>2013-06-10 20:36:52 +0000
committerDimitry Andric <dim@FreeBSD.org>2013-06-10 20:36:52 +0000
commit59d6cff90eecf31cb3dd860c4e786674cfdd42eb (patch)
tree909310b2e05119d1d6efda049977042abbb58bb1 /lib/MC/MCObjectFileInfo.cpp
parent4a16efa3e43e35f0cc9efe3a67f620f0017c3d36 (diff)
Notes
Diffstat (limited to 'lib/MC/MCObjectFileInfo.cpp')
-rw-r--r--lib/MC/MCObjectFileInfo.cpp24
1 files changed, 23 insertions, 1 deletions
diff --git a/lib/MC/MCObjectFileInfo.cpp b/lib/MC/MCObjectFileInfo.cpp
index d19e79ac64f9..96b62f19d934 100644
--- a/lib/MC/MCObjectFileInfo.cpp
+++ b/lib/MC/MCObjectFileInfo.cpp
@@ -145,12 +145,16 @@ void MCObjectFileInfo::InitMachOMCObjectFileInfo(Triple T) {
LSDASection = Ctx->getMachOSection("__TEXT", "__gcc_except_tab", 0,
SectionKind::getReadOnlyWithRel());
- if (T.isMacOSX() && !T.isMacOSXVersionLT(10, 6))
+ if (T.isMacOSX() && !T.isMacOSXVersionLT(10, 6)) {
CompactUnwindSection =
Ctx->getMachOSection("__LD", "__compact_unwind",
MCSectionMachO::S_ATTR_DEBUG,
SectionKind::getReadOnly());
+ if (T.getArch() == Triple::x86_64 || T.getArch() == Triple::x86)
+ CompactUnwindDwarfEHFrameOnly = 0x04000000;
+ }
+
// Debug Information.
DwarfAccelNamesSection =
Ctx->getMachOSection("__DWARF", "__apple_names",
@@ -291,6 +295,22 @@ void MCObjectFileInfo::InitELFMCObjectFileInfo(Triple T) {
FDEEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_udata8;
TTypeEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |
dwarf::DW_EH_PE_udata8;
+ } else if (T.getArch() == Triple::systemz) {
+ // All currently-defined code models guarantee that 4-byte PC-relative
+ // values will be in range.
+ if (RelocM == Reloc::PIC_) {
+ PersonalityEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |
+ dwarf::DW_EH_PE_sdata4;
+ LSDAEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4;
+ FDEEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4;
+ TTypeEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |
+ dwarf::DW_EH_PE_sdata4;
+ } else {
+ PersonalityEncoding = dwarf::DW_EH_PE_absptr;
+ LSDAEncoding = dwarf::DW_EH_PE_absptr;
+ FDEEncoding = dwarf::DW_EH_PE_absptr;
+ TTypeEncoding = dwarf::DW_EH_PE_absptr;
+ }
}
// Solaris requires different flags for .eh_frame to seemingly every other
@@ -629,6 +649,8 @@ void MCObjectFileInfo::InitMCObjectFileInfo(StringRef TT, Reloc::Model relocm,
PersonalityEncoding = LSDAEncoding = FDEEncoding = FDECFIEncoding =
TTypeEncoding = dwarf::DW_EH_PE_absptr;
+ CompactUnwindDwarfEHFrameOnly = 0;
+
EHFrameSection = 0; // Created on demand.
CompactUnwindSection = 0; // Used only by selected targets.
DwarfAccelNamesSection = 0; // Used only by selected targets.