diff options
Diffstat (limited to 'llvm/lib/Target/ARM/ARMTargetMachine.cpp')
| -rw-r--r-- | llvm/lib/Target/ARM/ARMTargetMachine.cpp | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/llvm/lib/Target/ARM/ARMTargetMachine.cpp b/llvm/lib/Target/ARM/ARMTargetMachine.cpp index 6e198a7d3e0..d0a768aabb3 100644 --- a/llvm/lib/Target/ARM/ARMTargetMachine.cpp +++ b/llvm/lib/Target/ARM/ARMTargetMachine.cpp @@ -52,6 +52,57 @@ static std::unique_ptr<TargetLoweringObjectFile> createTLOF(const Triple &TT) { return make_unique<ARMElfTargetObjectFile>(); } +static ARMBaseTargetMachine::ARMABI +computeTargetABI(const Triple &TT, StringRef CPU, + const TargetOptions &Options) { + if (Options.getABIName().startswith("aapcs")) + return ARMBaseTargetMachine::ARM_ABI_AAPCS; + else if (Options.getABIName().startswith("apcs")) + return ARMBaseTargetMachine::ARM_ABI_APCS; + + assert(Options.getABIName().empty() && "Unknown target-abi option!"); + + ARMBaseTargetMachine::ARMABI TargetABI = + ARMBaseTargetMachine::ARM_ABI_UNKNOWN; + + // FIXME: This is duplicated code from the front end and should be unified. + if (TT.isOSBinFormatMachO()) { + if (TT.getEnvironment() == llvm::Triple::EABI || + (TT.getOS() == llvm::Triple::UnknownOS && + TT.getObjectFormat() == llvm::Triple::MachO) || + CPU.startswith("cortex-m")) { + TargetABI = ARMBaseTargetMachine::ARM_ABI_AAPCS; + } else { + TargetABI = ARMBaseTargetMachine::ARM_ABI_APCS; + } + } else if (TT.isOSWindows()) { + // FIXME: this is invalid for WindowsCE + TargetABI = ARMBaseTargetMachine::ARM_ABI_AAPCS; + } else { + // Select the default based on the platform. + switch (TT.getEnvironment()) { + case llvm::Triple::Android: + case llvm::Triple::GNUEABI: + case llvm::Triple::GNUEABIHF: + case llvm::Triple::EABIHF: + case llvm::Triple::EABI: + TargetABI = ARMBaseTargetMachine::ARM_ABI_AAPCS; + break; + case llvm::Triple::GNU: + TargetABI = ARMBaseTargetMachine::ARM_ABI_APCS; + break; + default: + if (TT.getOS() == llvm::Triple::NetBSD) + TargetABI = ARMBaseTargetMachine::ARM_ABI_APCS; + else + TargetABI = ARMBaseTargetMachine::ARM_ABI_AAPCS; + break; + } + } + + return TargetABI; +} + /// TargetMachine ctor - Create an ARM architecture model. /// ARMBaseTargetMachine::ARMBaseTargetMachine(const Target &T, StringRef TT, @@ -60,6 +111,7 @@ ARMBaseTargetMachine::ARMBaseTargetMachine(const Target &T, StringRef TT, Reloc::Model RM, CodeModel::Model CM, CodeGenOpt::Level OL, bool isLittle) : LLVMTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL), + TargetABI(computeTargetABI(Triple(TT), CPU, Options)), TLOF(createTLOF(Triple(getTargetTriple()))), Subtarget(TT, CPU, FS, *this, isLittle), isLittle(isLittle) { |
