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| author | Tim Northover <tnorthover@apple.com> | 2014-03-29 10:18:08 +0000 |
|---|---|---|
| committer | Tim Northover <tnorthover@apple.com> | 2014-03-29 10:18:08 +0000 |
| commit | 00ed9964c65962e2afc8e3c83a2f7114b0ce25a0 (patch) | |
| tree | 21404a5e99549c2f98d72eac05f9df0b484d2d28 /llvm/lib/MC/MCObjectFileInfo.cpp | |
| parent | 3e38d290c872ae8d875b8dbe2d55262cee3a3cf9 (diff) | |
| download | bcm5719-llvm-00ed9964c65962e2afc8e3c83a2f7114b0ce25a0.tar.gz bcm5719-llvm-00ed9964c65962e2afc8e3c83a2f7114b0ce25a0.zip | |
ARM64: initial backend import
This adds a second implementation of the AArch64 architecture to LLVM,
accessible in parallel via the "arm64" triple. The plan over the
coming weeks & months is to merge the two into a single backend,
during which time thorough code review should naturally occur.
Everything will be easier with the target in-tree though, hence this
commit.
llvm-svn: 205090
Diffstat (limited to 'llvm/lib/MC/MCObjectFileInfo.cpp')
| -rw-r--r-- | llvm/lib/MC/MCObjectFileInfo.cpp | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/llvm/lib/MC/MCObjectFileInfo.cpp b/llvm/lib/MC/MCObjectFileInfo.cpp index e808d0ca6e6..3b011c8bc5a 100644 --- a/llvm/lib/MC/MCObjectFileInfo.cpp +++ b/llvm/lib/MC/MCObjectFileInfo.cpp @@ -22,6 +22,9 @@ void MCObjectFileInfo::InitMachOMCObjectFileInfo(Triple T) { IsFunctionEHFrameSymbolPrivate = false; SupportsWeakOmittedEHFrame = false; + if (T.isOSDarwin() && T.getArch() == Triple::arm64) + SupportsCompactUnwindWithoutEHFrame = true; + PersonalityEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4; LSDAEncoding = FDEEncoding = FDECFIEncoding = dwarf::DW_EH_PE_pcrel; @@ -146,7 +149,8 @@ void MCObjectFileInfo::InitMachOMCObjectFileInfo(Triple T) { COFFDebugSymbolsSection = 0; - if (T.isMacOSX() && !T.isMacOSXVersionLT(10, 6)) { + if ((T.isMacOSX() && !T.isMacOSXVersionLT(10, 6)) || + (T.isOSDarwin() && T.getArch() == Triple::arm64)) { CompactUnwindSection = Ctx->getMachOSection("__LD", "__compact_unwind", MachO::S_ATTR_DEBUG, @@ -154,6 +158,8 @@ void MCObjectFileInfo::InitMachOMCObjectFileInfo(Triple T) { if (T.getArch() == Triple::x86_64 || T.getArch() == Triple::x86) CompactUnwindDwarfEHFrameOnly = 0x04000000; + else if (T.getArch() == Triple::arm64) + CompactUnwindDwarfEHFrameOnly = 0x03000000; } // Debug Information. @@ -763,6 +769,7 @@ void MCObjectFileInfo::InitMCObjectFileInfo(StringRef TT, Reloc::Model relocm, // cellspu-apple-darwin. Perhaps we should fix in Triple? if ((Arch == Triple::x86 || Arch == Triple::x86_64 || Arch == Triple::arm || Arch == Triple::thumb || + Arch == Triple::arm64 || Arch == Triple::ppc || Arch == Triple::ppc64 || Arch == Triple::UnknownArch) && (T.isOSDarwin() || T.isOSBinFormatMachO())) { |
