diff options
| author | Tim Northover <tnorthover@apple.com> | 2015-10-28 22:56:36 +0000 |
|---|---|---|
| committer | Tim Northover <tnorthover@apple.com> | 2015-10-28 22:56:36 +0000 |
| commit | f8e47e4868270ee1bea61a5b64f3df5153262a08 (patch) | |
| tree | adb4e7c6c66481f3cd0c2d4ee0d01aec0fef532a /llvm/lib/MC/MCObjectFileInfo.cpp | |
| parent | 2253d1c0525d2a30c0a9e6e26237dabc6237b9b4 (diff) | |
| download | llvm-f8e47e4868270ee1bea61a5b64f3df5153262a08.zip llvm-f8e47e4868270ee1bea61a5b64f3df5153262a08.tar.gz llvm-f8e47e4868270ee1bea61a5b64f3df5153262a08.tar.bz2 | |
ARM: add support for WatchOS's compact unwind information.
llvm-svn: 251573
Diffstat (limited to 'llvm/lib/MC/MCObjectFileInfo.cpp')
| -rw-r--r-- | llvm/lib/MC/MCObjectFileInfo.cpp | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/llvm/lib/MC/MCObjectFileInfo.cpp b/llvm/lib/MC/MCObjectFileInfo.cpp index 666a1c3..4c51c83 100644 --- a/llvm/lib/MC/MCObjectFileInfo.cpp +++ b/llvm/lib/MC/MCObjectFileInfo.cpp @@ -29,6 +29,10 @@ static bool useCompactUnwind(const Triple &T) { if (T.getArch() == Triple::aarch64) return true; + // armv7k always has it. + if (T.isWatchOS()) + return true; + // Use it on newer version of OS X. if (T.isMacOSX() && !T.isMacOSXVersionLT(10, 6)) return true; @@ -48,6 +52,9 @@ void MCObjectFileInfo::initMachOMCObjectFileInfo(Triple T) { if (T.isOSDarwin() && T.getArch() == Triple::aarch64) SupportsCompactUnwindWithoutEHFrame = true; + if (T.isWatchOS()) + OmitDwarfIfHaveCompactUnwind = true; + PersonalityEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4; LSDAEncoding = FDECFIEncoding = dwarf::DW_EH_PE_pcrel; @@ -193,9 +200,11 @@ void MCObjectFileInfo::initMachOMCObjectFileInfo(Triple T) { SectionKind::getReadOnly()); if (T.getArch() == Triple::x86_64 || T.getArch() == Triple::x86) - CompactUnwindDwarfEHFrameOnly = 0x04000000; + CompactUnwindDwarfEHFrameOnly = 0x04000000; // UNWIND_X86_64_MODE_DWARF else if (T.getArch() == Triple::aarch64) - CompactUnwindDwarfEHFrameOnly = 0x03000000; + CompactUnwindDwarfEHFrameOnly = 0x03000000; // UNWIND_ARM64_MODE_DWARF + else if (T.getArch() == Triple::arm || T.getArch() == Triple::thumb) + CompactUnwindDwarfEHFrameOnly = 0x04000000; // UNWIND_ARM_MODE_DWARF } // Debug Information. @@ -767,6 +776,7 @@ void MCObjectFileInfo::InitMCObjectFileInfo(const Triple &TheTriple, CommDirectiveSupportsAlignment = true; SupportsWeakOmittedEHFrame = true; SupportsCompactUnwindWithoutEHFrame = false; + OmitDwarfIfHaveCompactUnwind = false; PersonalityEncoding = LSDAEncoding = FDECFIEncoding = TTypeEncoding = dwarf::DW_EH_PE_absptr; |