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llvm-mirror/lib/CodeGen/CMakeLists.txt
Arlo Siemsen d4eefe6819 Add ehcont section support
In the future Windows will enable Control-flow Enforcement Technology (CET aka shadow stacks). To protect the path where the context is updated during exception handling, the binary is required to enumerate valid unwind entrypoints in a dedicated section which is validated when the context is being set during exception handling.

This change allows llvm to generate the section that contains the appropriate symbol references in the form expected by the msvc linker.

This feature is enabled through a new module flag, ehcontguard, which was modelled on the cfguard flag.

The change includes a test that when the module flag is enabled the section is correctly generated.

The set of exception continuation information includes returns from exceptional control flow (catchret in llvm).

In order to collect catchret we:
1) Includes an additional flag on machine basic blocks to indicate that the given block is the target of a catchret operation,
2) Introduces a new machine function pass to insert and collect symbols at the start of each block, and
3) Combines these targets with the other EHCont targets that were already being collected.

Change originally authored by Daniel Frampton <dframpto@microsoft.com>

For more details, see MSVC documentation for `/guard:ehcont`
  https://docs.microsoft.com/en-us/cpp/build/reference/guard-enable-eh-continuation-metadata

Reviewed By: pengfei

Differential Revision: https://reviews.llvm.org/D94835
2021-02-15 14:27:12 +08:00

222 lines
4.9 KiB
CMake

add_llvm_component_library(LLVMCodeGen
AggressiveAntiDepBreaker.cpp
AllocationOrder.cpp
Analysis.cpp
AtomicExpandPass.cpp
BasicTargetTransformInfo.cpp
BranchFolding.cpp
BranchRelaxation.cpp
BreakFalseDeps.cpp
BuiltinGCs.cpp
BasicBlockSections.cpp
CalcSpillWeights.cpp
CallingConvLower.cpp
CFGuardLongjmp.cpp
CFIInstrInserter.cpp
CodeGen.cpp
CodeGenPassBuilder.cpp
CodeGenPrepare.cpp
CommandFlags.cpp
CriticalAntiDepBreaker.cpp
DeadMachineInstructionElim.cpp
DetectDeadLanes.cpp
DFAPacketizer.cpp
DwarfEHPrepare.cpp
EarlyIfConversion.cpp
EdgeBundles.cpp
EHContGuardCatchret.cpp
ExecutionDomainFix.cpp
ExpandMemCmp.cpp
ExpandPostRAPseudos.cpp
ExpandReductions.cpp
FaultMaps.cpp
FEntryInserter.cpp
FinalizeISel.cpp
FixupStatepointCallerSaved.cpp
FuncletLayout.cpp
GCMetadata.cpp
GCMetadataPrinter.cpp
GCRootLowering.cpp
GCStrategy.cpp
GlobalMerge.cpp
HardwareLoops.cpp
IfConversion.cpp
ImplicitNullChecks.cpp
IndirectBrExpandPass.cpp
InlineSpiller.cpp
InterferenceCache.cpp
InterleavedAccessPass.cpp
InterleavedLoadCombinePass.cpp
IntrinsicLowering.cpp
LatencyPriorityQueue.cpp
LazyMachineBlockFrequencyInfo.cpp
LexicalScopes.cpp
LiveDebugVariables.cpp
LiveIntervals.cpp
LiveInterval.cpp
LiveIntervalUnion.cpp
LivePhysRegs.cpp
LiveRangeCalc.cpp
LiveIntervalCalc.cpp
LiveRangeEdit.cpp
LiveRangeShrink.cpp
LiveRegMatrix.cpp
LiveRegUnits.cpp
LiveStacks.cpp
LiveVariables.cpp
LLVMTargetMachine.cpp
LocalStackSlotAllocation.cpp
LoopTraversal.cpp
LowLevelType.cpp
LowerEmuTLS.cpp
MachineBasicBlock.cpp
MachineBlockFrequencyInfo.cpp
MachineBlockPlacement.cpp
MachineBranchProbabilityInfo.cpp
MachineCombiner.cpp
MachineCopyPropagation.cpp
MachineCSE.cpp
MachineCheckDebugify.cpp
MachineDebugify.cpp
MachineDominanceFrontier.cpp
MachineDominators.cpp
MachineFrameInfo.cpp
MachineFunction.cpp
MachineFunctionPass.cpp
MachineFunctionPrinterPass.cpp
MachineFunctionSplitter.cpp
MachineInstrBundle.cpp
MachineInstr.cpp
MachineLICM.cpp
MachineLoopInfo.cpp
MachineLoopUtils.cpp
MachineModuleInfo.cpp
MachineModuleInfoImpls.cpp
MachineOperand.cpp
MachineOptimizationRemarkEmitter.cpp
MachineOutliner.cpp
MachinePassManager.cpp
MachinePipeliner.cpp
MachinePostDominators.cpp
MachineRegionInfo.cpp
MachineRegisterInfo.cpp
MachineScheduler.cpp
MachineSink.cpp
MachineSizeOpts.cpp
MachineSSAUpdater.cpp
MachineStripDebug.cpp
MachineTraceMetrics.cpp
MachineVerifier.cpp
ModuloSchedule.cpp
MultiHazardRecognizer.cpp
PatchableFunction.cpp
MBFIWrapper.cpp
MIRPrinter.cpp
MIRPrintingPass.cpp
MacroFusion.cpp
NonRelocatableStringpool.cpp
OptimizePHIs.cpp
ParallelCG.cpp
PeepholeOptimizer.cpp
PHIElimination.cpp
PHIEliminationUtils.cpp
PostRAHazardRecognizer.cpp
PostRASchedulerList.cpp
PreISelIntrinsicLowering.cpp
ProcessImplicitDefs.cpp
PrologEpilogInserter.cpp
PseudoProbeInserter.cpp
PseudoSourceValue.cpp
RDFGraph.cpp
RDFLiveness.cpp
RDFRegisters.cpp
ReachingDefAnalysis.cpp
RegAllocBase.cpp
RegAllocBasic.cpp
RegAllocFast.cpp
RegAllocGreedy.cpp
RegAllocPBQP.cpp
RegisterClassInfo.cpp
RegisterCoalescer.cpp
RegisterPressure.cpp
RegisterScavenging.cpp
RenameIndependentSubregs.cpp
MachineStableHash.cpp
MIRVRegNamerUtils.cpp
MIRNamerPass.cpp
MIRCanonicalizerPass.cpp
RegisterUsageInfo.cpp
RegUsageInfoCollector.cpp
RegUsageInfoPropagate.cpp
ReplaceWithVeclib.cpp
ResetMachineFunctionPass.cpp
SafeStack.cpp
SafeStackLayout.cpp
ScheduleDAG.cpp
ScheduleDAGInstrs.cpp
ScheduleDAGPrinter.cpp
ScoreboardHazardRecognizer.cpp
ShadowStackGCLowering.cpp
ShrinkWrap.cpp
SjLjEHPrepare.cpp
SlotIndexes.cpp
SpillPlacement.cpp
SplitKit.cpp
StackColoring.cpp
StackMapLivenessAnalysis.cpp
StackMaps.cpp
StackProtector.cpp
StackSlotColoring.cpp
SwiftErrorValueTracking.cpp
SwitchLoweringUtils.cpp
TailDuplication.cpp
TailDuplicator.cpp
TargetFrameLoweringImpl.cpp
TargetInstrInfo.cpp
TargetLoweringBase.cpp
TargetLoweringObjectFileImpl.cpp
TargetOptionsImpl.cpp
TargetPassConfig.cpp
TargetRegisterInfo.cpp
TargetSchedule.cpp
TargetSubtargetInfo.cpp
TypePromotion.cpp
TwoAddressInstructionPass.cpp
UnreachableBlockElim.cpp
ValueTypes.cpp
VirtRegMap.cpp
WasmEHPrepare.cpp
WinEHPrepare.cpp
XRayInstrumentation.cpp
LiveDebugValues/LiveDebugValues.cpp
LiveDebugValues/VarLocBasedImpl.cpp
LiveDebugValues/InstrRefBasedImpl.cpp
ADDITIONAL_HEADER_DIRS
${LLVM_MAIN_INCLUDE_DIR}/llvm/CodeGen
${LLVM_MAIN_INCLUDE_DIR}/llvm/CodeGen/PBQP
LINK_LIBS ${LLVM_PTHREAD_LIB}
DEPENDS
intrinsics_gen
LINK_COMPONENTS
Analysis
BitReader
BitWriter
Core
MC
ProfileData
Scalar
Support
Target
TransformUtils
)
add_subdirectory(SelectionDAG)
add_subdirectory(AsmPrinter)
add_subdirectory(MIRParser)
add_subdirectory(GlobalISel)