diff options
Diffstat (limited to 'lib/CodeGen/LLVMTargetMachine.cpp')
| -rw-r--r-- | lib/CodeGen/LLVMTargetMachine.cpp | 65 |
1 files changed, 27 insertions, 38 deletions
diff --git a/lib/CodeGen/LLVMTargetMachine.cpp b/lib/CodeGen/LLVMTargetMachine.cpp index df96b94..61face2 100644 --- a/lib/CodeGen/LLVMTargetMachine.cpp +++ b/lib/CodeGen/LLVMTargetMachine.cpp @@ -13,8 +13,10 @@ #include "llvm/Target/TargetMachine.h" +#include "llvm/Analysis/JumpInstrTableInfo.h" #include "llvm/Analysis/Passes.h" #include "llvm/CodeGen/AsmPrinter.h" +#include "llvm/CodeGen/ForwardControlFlowIntegrity.h" #include "llvm/CodeGen/JumpInstrTables.h" #include "llvm/CodeGen/MachineFunctionAnalysis.h" #include "llvm/CodeGen/MachineModuleInfo.h" @@ -48,8 +50,8 @@ EnableFastISelOption("fast-isel", cl::Hidden, cl::desc("Enable the \"fast\" instruction selector")); void LLVMTargetMachine::initAsmInfo() { - MCAsmInfo *TmpAsmInfo = TheTarget.createMCAsmInfo(*getRegisterInfo(), - TargetTriple); + MCAsmInfo *TmpAsmInfo = TheTarget.createMCAsmInfo( + *getSubtargetImpl()->getRegisterInfo(), getTargetTriple()); // TargetSelect.h moved to a different directory between LLVM 2.9 and 3.0, // and if the old one gets included then MCAsmInfo will be NULL and // we'll crash later. @@ -110,9 +112,9 @@ static MCContext *addPassesToGenerateCode(LLVMTargetMachine *TM, // Install a MachineModuleInfo class, which is an immutable pass that holds // all the per-module stuff we're generating, including MCContext. - MachineModuleInfo *MMI = - new MachineModuleInfo(*TM->getMCAsmInfo(), *TM->getRegisterInfo(), - &TM->getTargetLowering()->getObjFileLowering()); + MachineModuleInfo *MMI = new MachineModuleInfo( + *TM->getMCAsmInfo(), *TM->getSubtargetImpl()->getRegisterInfo(), + &TM->getSubtargetImpl()->getTargetLowering()->getObjFileLowering()); PM.add(MMI); // Set up a MachineFunction for the rest of CodeGen to work on. @@ -143,8 +145,13 @@ bool LLVMTargetMachine::addPassesToEmitFile(PassManagerBase &PM, AnalysisID StopAfter) { // Passes to handle jumptable function annotations. These can't be handled at // JIT time, so we don't add them directly to addPassesToGenerateCode. - PM.add(createJumpInstrTableInfoPass()); + PM.add(createJumpInstrTableInfoPass( + getSubtargetImpl()->getInstrInfo()->getJumpInstrTableEntryBound())); PM.add(createJumpInstrTablesPass(Options.JTType)); + if (Options.FCFI) + PM.add(createForwardControlFlowIntegrityPass( + Options.JTType, Options.CFIType, Options.CFIEnforcing, + Options.getCFIFuncName())); // Add common CodeGen passes. MCContext *Context = addPassesToGenerateCode(this, PM, DisableVerify, @@ -165,10 +172,10 @@ bool LLVMTargetMachine::addPassesToEmitFile(PassManagerBase &PM, if (Options.MCOptions.MCSaveTempLabels) Context->setAllowTemporaryLabels(false); - const MCAsmInfo &MAI = *getMCAsmInfo(); - const MCRegisterInfo &MRI = *getRegisterInfo(); - const MCInstrInfo &MII = *getInstrInfo(); const MCSubtargetInfo &STI = getSubtarget<MCSubtargetInfo>(); + const MCAsmInfo &MAI = *getMCAsmInfo(); + const MCRegisterInfo &MRI = *getSubtargetImpl()->getRegisterInfo(); + const MCInstrInfo &MII = *getSubtargetImpl()->getInstrInfo(); std::unique_ptr<MCStreamer> AsmStreamer; switch (FileType) { @@ -201,9 +208,10 @@ bool LLVMTargetMachine::addPassesToEmitFile(PassManagerBase &PM, if (!MCE || !MAB) return true; - AsmStreamer.reset(getTarget().createMCObjectStreamer( - getTargetTriple(), *Context, *MAB, Out, MCE, STI, - Options.MCOptions.MCRelaxAll, Options.MCOptions.MCNoExecStack)); + AsmStreamer.reset( + getTarget() + .createMCObjectStreamer(getTargetTriple(), *Context, *MAB, Out, MCE, + STI, Options.MCOptions.MCRelaxAll)); break; } case CGFT_Null: @@ -226,26 +234,6 @@ bool LLVMTargetMachine::addPassesToEmitFile(PassManagerBase &PM, return false; } -/// addPassesToEmitMachineCode - Add passes to the specified pass manager to -/// get machine code emitted. This uses a JITCodeEmitter object to handle -/// actually outputting the machine code and resolving things like the address -/// of functions. This method should return true if machine code emission is -/// not supported. -/// -bool LLVMTargetMachine::addPassesToEmitMachineCode(PassManagerBase &PM, - JITCodeEmitter &JCE, - bool DisableVerify) { - // Add common CodeGen passes. - MCContext *Context = addPassesToGenerateCode(this, PM, DisableVerify, nullptr, - nullptr); - if (!Context) - return true; - - addCodeEmitter(PM, JCE); - - return false; // success! -} - /// addPassesToEmitMC - Add passes to the specified pass manager to get /// machine code emitted with the MCJIT. This method returns true if machine /// code is not supported. It fills the MCContext Ctx pointer which can be @@ -265,19 +253,20 @@ bool LLVMTargetMachine::addPassesToEmitMC(PassManagerBase &PM, // Create the code emitter for the target if it exists. If not, .o file // emission fails. - const MCRegisterInfo &MRI = *getRegisterInfo(); + const MCRegisterInfo &MRI = *getSubtargetImpl()->getRegisterInfo(); const MCSubtargetInfo &STI = getSubtarget<MCSubtargetInfo>(); - MCCodeEmitter *MCE = getTarget().createMCCodeEmitter(*getInstrInfo(), MRI, - STI, *Ctx); + MCCodeEmitter *MCE = getTarget().createMCCodeEmitter( + *getSubtargetImpl()->getInstrInfo(), MRI, STI, *Ctx); MCAsmBackend *MAB = getTarget().createMCAsmBackend(MRI, getTargetTriple(), TargetCPU); if (!MCE || !MAB) return true; std::unique_ptr<MCStreamer> AsmStreamer; - AsmStreamer.reset(getTarget().createMCObjectStreamer( - getTargetTriple(), *Ctx, *MAB, Out, MCE, STI, - Options.MCOptions.MCRelaxAll, Options.MCOptions.MCNoExecStack)); + AsmStreamer.reset(getTarget() + .createMCObjectStreamer(getTargetTriple(), *Ctx, *MAB, + Out, MCE, STI, + Options.MCOptions.MCRelaxAll)); // Create the AsmPrinter, which takes ownership of AsmStreamer if successful. FunctionPass *Printer = getTarget().createAsmPrinter(*this, *AsmStreamer); |