From 7b837d8c75f78fe55c9b348b9ec2281169a48d2a Mon Sep 17 00:00:00 2001 From: Tim Northover Date: Sat, 29 Mar 2014 10:18:08 +0000 Subject: 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205090 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/MC/MCObjectFileInfo.cpp | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'lib/MC/MCObjectFileInfo.cpp') diff --git a/lib/MC/MCObjectFileInfo.cpp b/lib/MC/MCObjectFileInfo.cpp index e808d0ca6e..3b011c8bc5 100644 --- a/lib/MC/MCObjectFileInfo.cpp +++ b/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())) { -- cgit v1.2.3