diff options
Diffstat (limited to 'lib/ExecutionEngine/JIT/JITDwarfEmitter.cpp')
| -rw-r--r-- | lib/ExecutionEngine/JIT/JITDwarfEmitter.cpp | 46 |
1 files changed, 23 insertions, 23 deletions
diff --git a/lib/ExecutionEngine/JIT/JITDwarfEmitter.cpp b/lib/ExecutionEngine/JIT/JITDwarfEmitter.cpp index f54ccca..ddb0d54 100644 --- a/lib/ExecutionEngine/JIT/JITDwarfEmitter.cpp +++ b/lib/ExecutionEngine/JIT/JITDwarfEmitter.cpp @@ -34,7 +34,7 @@ using namespace llvm; JITDwarfEmitter::JITDwarfEmitter(JIT& theJit) : MMI(0), Jit(theJit) {} -unsigned char* JITDwarfEmitter::EmitDwarfTable(MachineFunction& F, +unsigned char* JITDwarfEmitter::EmitDwarfTable(MachineFunction& F, JITCodeEmitter& jce, unsigned char* StartFunction, unsigned char* EndFunction, @@ -47,10 +47,10 @@ unsigned char* JITDwarfEmitter::EmitDwarfTable(MachineFunction& F, RI = TM.getRegisterInfo(); TFI = TM.getFrameLowering(); JCE = &jce; - + unsigned char* ExceptionTable = EmitExceptionTable(&F, StartFunction, EndFunction); - + unsigned char* Result = 0; const std::vector<const Function *> Personalities = MMI->getPersonalities(); @@ -63,7 +63,7 @@ unsigned char* JITDwarfEmitter::EmitDwarfTable(MachineFunction& F, } -void +void JITDwarfEmitter::EmitFrameMoves(intptr_t BaseLabelPtr, const std::vector<MachineMove> &Moves) const { unsigned PointerSize = TD->getPointerSize(); @@ -74,26 +74,26 @@ JITDwarfEmitter::EmitFrameMoves(intptr_t BaseLabelPtr, for (unsigned i = 0, N = Moves.size(); i < N; ++i) { const MachineMove &Move = Moves[i]; MCSymbol *Label = Move.getLabel(); - + // Throw out move if the label is invalid. if (Label && (*JCE->getLabelLocations())[Label] == 0) continue; - + intptr_t LabelPtr = 0; if (Label) LabelPtr = JCE->getLabelAddress(Label); const MachineLocation &Dst = Move.getDestination(); const MachineLocation &Src = Move.getSource(); - + // Advance row if new location. if (BaseLabelPtr && Label && BaseLabel != Label) { JCE->emitByte(dwarf::DW_CFA_advance_loc4); JCE->emitInt32(LabelPtr - BaseLabelPtr); - - BaseLabel = Label; + + BaseLabel = Label; BaseLabelPtr = LabelPtr; } - + // If advancing cfa. if (Dst.isReg() && Dst.getReg() == MachineLocation::VirtualFP) { if (!Src.isReg()) { @@ -103,7 +103,7 @@ JITDwarfEmitter::EmitFrameMoves(intptr_t BaseLabelPtr, JCE->emitByte(dwarf::DW_CFA_def_cfa); JCE->emitULEB128Bytes(RI->getDwarfRegNum(Src.getReg(), true)); } - + JCE->emitULEB128Bytes(-Src.getOffset()); } else { llvm_unreachable("Machine move not supported yet."); @@ -119,7 +119,7 @@ JITDwarfEmitter::EmitFrameMoves(intptr_t BaseLabelPtr, } else { unsigned Reg = RI->getDwarfRegNum(Src.getReg(), true); int Offset = Dst.getOffset() / stackGrowth; - + if (Offset < 0) { JCE->emitByte(dwarf::DW_CFA_offset_extended_sf); JCE->emitULEB128Bytes(Reg); @@ -382,7 +382,7 @@ unsigned char* JITDwarfEmitter::EmitExceptionTable(MachineFunction* MF, unsigned TypeOffset = sizeof(int8_t) + // Call site format // Call-site table length - MCAsmInfo::getULEB128Size(SizeSites) + + MCAsmInfo::getULEB128Size(SizeSites) + SizeSites + SizeActions + SizeTypes; // Begin the exception table. @@ -452,7 +452,7 @@ unsigned char* JITDwarfEmitter::EmitExceptionTable(MachineFunction* MF, // Emit the type ids. for (unsigned M = TypeInfos.size(); M; --M) { const GlobalVariable *GV = TypeInfos[M - 1]; - + if (GV) { if (TD->getPointerSize() == sizeof(int32_t)) JCE->emitInt32((intptr_t)Jit.getOrEmitGlobalVariable(GV)); @@ -484,7 +484,7 @@ JITDwarfEmitter::EmitCommonEHFrame(const Function* Personality) const { unsigned PointerSize = TD->getPointerSize(); int stackGrowth = stackGrowthDirection == TargetFrameLowering::StackGrowsUp ? PointerSize : -PointerSize; - + unsigned char* StartCommonPtr = (unsigned char*)JCE->getCurrentPCValue(); // EH Common Frame header JCE->allocateSpace(4, 0); @@ -499,13 +499,13 @@ JITDwarfEmitter::EmitCommonEHFrame(const Function* Personality) const { if (Personality) { // Augmentation Size: 3 small ULEBs of one byte each, and the personality // function which size is PointerSize. - JCE->emitULEB128Bytes(3 + PointerSize); - + JCE->emitULEB128Bytes(3 + PointerSize); + // We set the encoding of the personality as direct encoding because we use // the function pointer. The encoding is not relative because the current // PC value may be bigger than the personality function pointer. if (PointerSize == 4) { - JCE->emitByte(dwarf::DW_EH_PE_sdata4); + JCE->emitByte(dwarf::DW_EH_PE_sdata4); JCE->emitInt32(((intptr_t)Jit.getPointerToGlobal(Personality))); } else { JCE->emitByte(dwarf::DW_EH_PE_sdata8); @@ -540,11 +540,11 @@ JITDwarfEmitter::EmitCommonEHFrame(const Function* Personality) const { unsigned char* JITDwarfEmitter::EmitEHFrame(const Function* Personality, unsigned char* StartCommonPtr, - unsigned char* StartFunction, + unsigned char* StartFunction, unsigned char* EndFunction, unsigned char* ExceptionTable) const { unsigned PointerSize = TD->getPointerSize(); - + // EH frame header. unsigned char* StartEHPtr = (unsigned char*)JCE->getCurrentPCValue(); JCE->allocateSpace(4, 0); @@ -558,7 +558,7 @@ JITDwarfEmitter::EmitEHFrame(const Function* Personality, // specific data area in the exception table. if (Personality) { JCE->emitULEB128Bytes(PointerSize == 4 ? 4 : 8); - + if (PointerSize == 4) { if (!MMI->getLandingPads().empty()) JCE->emitInt32(ExceptionTable-(unsigned char*)JCE->getCurrentPCValue()); @@ -573,7 +573,7 @@ JITDwarfEmitter::EmitEHFrame(const Function* Personality, } else { JCE->emitULEB128Bytes(0); } - + // Indicate locations of function specific callee saved registers in // frame. EmitFrameMoves((intptr_t)StartFunction, MMI->getFrameMoves()); @@ -593,6 +593,6 @@ JITDwarfEmitter::EmitEHFrame(const Function* Personality, JCE->emitInt32(0); JCE->emitInt32(0); } - + return StartEHPtr; } |
