aboutsummaryrefslogtreecommitdiff
path: root/lib/Transforms/Instrumentation/SanitizerCoverage.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'lib/Transforms/Instrumentation/SanitizerCoverage.cpp')
-rw-r--r--lib/Transforms/Instrumentation/SanitizerCoverage.cpp253
1 files changed, 171 insertions, 82 deletions
diff --git a/lib/Transforms/Instrumentation/SanitizerCoverage.cpp b/lib/Transforms/Instrumentation/SanitizerCoverage.cpp
index 09de7a2cda2b..7d404473655d 100644
--- a/lib/Transforms/Instrumentation/SanitizerCoverage.cpp
+++ b/lib/Transforms/Instrumentation/SanitizerCoverage.cpp
@@ -28,13 +28,15 @@
//
//===----------------------------------------------------------------------===//
-#include "llvm/Transforms/Instrumentation.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/Analysis/EHPersonalities.h"
+#include "llvm/Analysis/PostDominators.h"
+#include "llvm/IR/CFG.h"
#include "llvm/IR/CallSite.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/DebugInfo.h"
+#include "llvm/IR/Dominators.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/InlineAsm.h"
@@ -45,6 +47,7 @@
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"
+#include "llvm/Transforms/Instrumentation.h"
#include "llvm/Transforms/Scalar.h"
#include "llvm/Transforms/Utils/BasicBlockUtils.h"
#include "llvm/Transforms/Utils/ModuleUtils.h"
@@ -53,22 +56,28 @@ using namespace llvm;
#define DEBUG_TYPE "sancov"
-static const char *const kSanCovModuleInitName = "__sanitizer_cov_module_init";
-static const char *const kSanCovName = "__sanitizer_cov";
-static const char *const kSanCovWithCheckName = "__sanitizer_cov_with_check";
-static const char *const kSanCovIndirCallName = "__sanitizer_cov_indir_call16";
-static const char *const kSanCovTraceEnter = "__sanitizer_cov_trace_func_enter";
-static const char *const kSanCovTraceBB = "__sanitizer_cov_trace_basic_block";
-static const char *const kSanCovTraceCmp = "__sanitizer_cov_trace_cmp";
-static const char *const kSanCovTraceSwitch = "__sanitizer_cov_trace_switch";
-static const char *const kSanCovModuleCtorName = "sancov.module_ctor";
-static const uint64_t kSanCtorAndDtorPriority = 2;
-
-static cl::opt<int> ClCoverageLevel("sanitizer-coverage-level",
- cl::desc("Sanitizer Coverage. 0: none, 1: entry block, 2: all blocks, "
- "3: all blocks and critical edges, "
- "4: above plus indirect calls"),
- cl::Hidden, cl::init(0));
+static const char *const SanCovModuleInitName = "__sanitizer_cov_module_init";
+static const char *const SanCovName = "__sanitizer_cov";
+static const char *const SanCovWithCheckName = "__sanitizer_cov_with_check";
+static const char *const SanCovIndirCallName = "__sanitizer_cov_indir_call16";
+static const char *const SanCovTracePCIndirName =
+ "__sanitizer_cov_trace_pc_indir";
+static const char *const SanCovTraceEnterName =
+ "__sanitizer_cov_trace_func_enter";
+static const char *const SanCovTraceBBName =
+ "__sanitizer_cov_trace_basic_block";
+static const char *const SanCovTracePCName = "__sanitizer_cov_trace_pc";
+static const char *const SanCovTraceCmpName = "__sanitizer_cov_trace_cmp";
+static const char *const SanCovTraceSwitchName = "__sanitizer_cov_trace_switch";
+static const char *const SanCovModuleCtorName = "sancov.module_ctor";
+static const uint64_t SanCtorAndDtorPriority = 2;
+
+static cl::opt<int> ClCoverageLevel(
+ "sanitizer-coverage-level",
+ cl::desc("Sanitizer Coverage. 0: none, 1: entry block, 2: all blocks, "
+ "3: all blocks and critical edges, "
+ "4: above plus indirect calls"),
+ cl::Hidden, cl::init(0));
static cl::opt<unsigned> ClCoverageBlockThreshold(
"sanitizer-coverage-block-threshold",
@@ -82,12 +91,21 @@ static cl::opt<bool>
"callbacks at every basic block"),
cl::Hidden, cl::init(false));
+static cl::opt<bool> ClExperimentalTracePC("sanitizer-coverage-trace-pc",
+ cl::desc("Experimental pc tracing"),
+ cl::Hidden, cl::init(false));
+
static cl::opt<bool>
ClExperimentalCMPTracing("sanitizer-coverage-experimental-trace-compares",
cl::desc("Experimental tracing of CMP and similar "
"instructions"),
cl::Hidden, cl::init(false));
+static cl::opt<bool>
+ ClPruneBlocks("sanitizer-coverage-prune-blocks",
+ cl::desc("Reduce the number of instrumented blocks"),
+ cl::Hidden, cl::init(true));
+
// Experimental 8-bit counters used as an additional search heuristic during
// coverage-guided fuzzing.
// The counters are not thread-friendly:
@@ -131,22 +149,28 @@ SanitizerCoverageOptions OverrideFromCL(SanitizerCoverageOptions Options) {
Options.TraceBB |= ClExperimentalTracing;
Options.TraceCmp |= ClExperimentalCMPTracing;
Options.Use8bitCounters |= ClUse8bitCounters;
+ Options.TracePC |= ClExperimentalTracePC;
return Options;
}
class SanitizerCoverageModule : public ModulePass {
- public:
+public:
SanitizerCoverageModule(
const SanitizerCoverageOptions &Options = SanitizerCoverageOptions())
- : ModulePass(ID), Options(OverrideFromCL(Options)) {}
+ : ModulePass(ID), Options(OverrideFromCL(Options)) {
+ initializeSanitizerCoverageModulePass(*PassRegistry::getPassRegistry());
+ }
bool runOnModule(Module &M) override;
bool runOnFunction(Function &F);
- static char ID; // Pass identification, replacement for typeid
- const char *getPassName() const override {
- return "SanitizerCoverageModule";
+ static char ID; // Pass identification, replacement for typeid
+ const char *getPassName() const override { return "SanitizerCoverageModule"; }
+
+ void getAnalysisUsage(AnalysisUsage &AU) const override {
+ AU.addRequired<DominatorTreeWrapperPass>();
+ AU.addRequired<PostDominatorTreeWrapperPass>();
}
- private:
+private:
void InjectCoverageForIndirectCalls(Function &F,
ArrayRef<Instruction *> IndirCalls);
void InjectTraceForCmp(Function &F, ArrayRef<Instruction *> CmpTraceTargets);
@@ -162,8 +186,8 @@ class SanitizerCoverageModule : public ModulePass {
}
Function *SanCovFunction;
Function *SanCovWithCheckFunction;
- Function *SanCovIndirCallFunction;
- Function *SanCovTraceEnter, *SanCovTraceBB;
+ Function *SanCovIndirCallFunction, *SanCovTracePCIndir;
+ Function *SanCovTraceEnter, *SanCovTraceBB, *SanCovTracePC;
Function *SanCovTraceCmpFunction;
Function *SanCovTraceSwitchFunction;
InlineAsm *EmptyAsm;
@@ -178,7 +202,7 @@ class SanitizerCoverageModule : public ModulePass {
SanitizerCoverageOptions Options;
};
-} // namespace
+} // namespace
bool SanitizerCoverageModule::runOnModule(Module &M) {
if (Options.CoverageType == SanitizerCoverageOptions::SCK_None)
@@ -195,28 +219,32 @@ bool SanitizerCoverageModule::runOnModule(Module &M) {
Int64Ty = IRB.getInt64Ty();
SanCovFunction = checkSanitizerInterfaceFunction(
- M.getOrInsertFunction(kSanCovName, VoidTy, Int32PtrTy, nullptr));
+ M.getOrInsertFunction(SanCovName, VoidTy, Int32PtrTy, nullptr));
SanCovWithCheckFunction = checkSanitizerInterfaceFunction(
- M.getOrInsertFunction(kSanCovWithCheckName, VoidTy, Int32PtrTy, nullptr));
+ M.getOrInsertFunction(SanCovWithCheckName, VoidTy, Int32PtrTy, nullptr));
+ SanCovTracePCIndir = checkSanitizerInterfaceFunction(
+ M.getOrInsertFunction(SanCovTracePCIndirName, VoidTy, IntptrTy, nullptr));
SanCovIndirCallFunction =
checkSanitizerInterfaceFunction(M.getOrInsertFunction(
- kSanCovIndirCallName, VoidTy, IntptrTy, IntptrTy, nullptr));
+ SanCovIndirCallName, VoidTy, IntptrTy, IntptrTy, nullptr));
SanCovTraceCmpFunction =
checkSanitizerInterfaceFunction(M.getOrInsertFunction(
- kSanCovTraceCmp, VoidTy, Int64Ty, Int64Ty, Int64Ty, nullptr));
+ SanCovTraceCmpName, VoidTy, Int64Ty, Int64Ty, Int64Ty, nullptr));
SanCovTraceSwitchFunction =
checkSanitizerInterfaceFunction(M.getOrInsertFunction(
- kSanCovTraceSwitch, VoidTy, Int64Ty, Int64PtrTy, nullptr));
+ SanCovTraceSwitchName, VoidTy, Int64Ty, Int64PtrTy, nullptr));
// We insert an empty inline asm after cov callbacks to avoid callback merge.
EmptyAsm = InlineAsm::get(FunctionType::get(IRB.getVoidTy(), false),
StringRef(""), StringRef(""),
/*hasSideEffects=*/true);
+ SanCovTracePC = checkSanitizerInterfaceFunction(
+ M.getOrInsertFunction(SanCovTracePCName, VoidTy, nullptr));
SanCovTraceEnter = checkSanitizerInterfaceFunction(
- M.getOrInsertFunction(kSanCovTraceEnter, VoidTy, Int32PtrTy, nullptr));
+ M.getOrInsertFunction(SanCovTraceEnterName, VoidTy, Int32PtrTy, nullptr));
SanCovTraceBB = checkSanitizerInterfaceFunction(
- M.getOrInsertFunction(kSanCovTraceBB, VoidTy, Int32PtrTy, nullptr));
+ M.getOrInsertFunction(SanCovTraceBBName, VoidTy, Int32PtrTy, nullptr));
// At this point we create a dummy array of guards because we don't
// know how many elements we will need.
@@ -243,7 +271,6 @@ bool SanitizerCoverageModule::runOnModule(Module &M) {
M, Int32ArrayNTy, false, GlobalValue::PrivateLinkage,
Constant::getNullValue(Int32ArrayNTy), "__sancov_gen_cov");
-
// Replace the dummy array with the real one.
GuardArray->replaceAllUsesWith(
IRB.CreatePointerCast(RealGuardArray, Int32PtrTy));
@@ -252,13 +279,12 @@ bool SanitizerCoverageModule::runOnModule(Module &M) {
GlobalVariable *RealEightBitCounterArray;
if (Options.Use8bitCounters) {
// Make sure the array is 16-aligned.
- static const int kCounterAlignment = 16;
- Type *Int8ArrayNTy =
- ArrayType::get(Int8Ty, RoundUpToAlignment(N, kCounterAlignment));
+ static const int CounterAlignment = 16;
+ Type *Int8ArrayNTy = ArrayType::get(Int8Ty, alignTo(N, CounterAlignment));
RealEightBitCounterArray = new GlobalVariable(
M, Int8ArrayNTy, false, GlobalValue::PrivateLinkage,
Constant::getNullValue(Int8ArrayNTy), "__sancov_gen_cov_counter");
- RealEightBitCounterArray->setAlignment(kCounterAlignment);
+ RealEightBitCounterArray->setAlignment(CounterAlignment);
EightBitCounterArray->replaceAllUsesWith(
IRB.CreatePointerCast(RealEightBitCounterArray, Int8PtrTy));
EightBitCounterArray->eraseFromParent();
@@ -271,26 +297,64 @@ bool SanitizerCoverageModule::runOnModule(Module &M) {
new GlobalVariable(M, ModNameStrConst->getType(), true,
GlobalValue::PrivateLinkage, ModNameStrConst);
- Function *CtorFunc;
- std::tie(CtorFunc, std::ignore) = createSanitizerCtorAndInitFunctions(
- M, kSanCovModuleCtorName, kSanCovModuleInitName,
- {Int32PtrTy, IntptrTy, Int8PtrTy, Int8PtrTy},
- {IRB.CreatePointerCast(RealGuardArray, Int32PtrTy),
- ConstantInt::get(IntptrTy, N),
- Options.Use8bitCounters
- ? IRB.CreatePointerCast(RealEightBitCounterArray, Int8PtrTy)
- : Constant::getNullValue(Int8PtrTy),
- IRB.CreatePointerCast(ModuleName, Int8PtrTy)});
+ if (!Options.TracePC) {
+ Function *CtorFunc;
+ std::tie(CtorFunc, std::ignore) = createSanitizerCtorAndInitFunctions(
+ M, SanCovModuleCtorName, SanCovModuleInitName,
+ {Int32PtrTy, IntptrTy, Int8PtrTy, Int8PtrTy},
+ {IRB.CreatePointerCast(RealGuardArray, Int32PtrTy),
+ ConstantInt::get(IntptrTy, N),
+ Options.Use8bitCounters
+ ? IRB.CreatePointerCast(RealEightBitCounterArray, Int8PtrTy)
+ : Constant::getNullValue(Int8PtrTy),
+ IRB.CreatePointerCast(ModuleName, Int8PtrTy)});
+
+ appendToGlobalCtors(M, CtorFunc, SanCtorAndDtorPriority);
+ }
+
+ return true;
+}
+
+// True if block has successors and it dominates all of them.
+static bool isFullDominator(const BasicBlock *BB, const DominatorTree *DT) {
+ if (succ_begin(BB) == succ_end(BB))
+ return false;
+
+ for (const BasicBlock *SUCC : make_range(succ_begin(BB), succ_end(BB))) {
+ if (!DT->dominates(BB, SUCC))
+ return false;
+ }
+
+ return true;
+}
- appendToGlobalCtors(M, CtorFunc, kSanCtorAndDtorPriority);
+// True if block has predecessors and it postdominates all of them.
+static bool isFullPostDominator(const BasicBlock *BB,
+ const PostDominatorTree *PDT) {
+ if (pred_begin(BB) == pred_end(BB))
+ return false;
+
+ for (const BasicBlock *PRED : make_range(pred_begin(BB), pred_end(BB))) {
+ if (!PDT->dominates(BB, PRED))
+ return false;
+ }
return true;
}
+static bool shouldInstrumentBlock(const Function& F, const BasicBlock *BB, const DominatorTree *DT,
+ const PostDominatorTree *PDT) {
+ if (!ClPruneBlocks || &F.getEntryBlock() == BB)
+ return true;
+
+ return !(isFullDominator(BB, DT) || isFullPostDominator(BB, PDT));
+}
+
bool SanitizerCoverageModule::runOnFunction(Function &F) {
- if (F.empty()) return false;
+ if (F.empty())
+ return false;
if (F.getName().find(".module_ctor") != std::string::npos)
- return false; // Should not instrument sanitizer init functions.
+ return false; // Should not instrument sanitizer init functions.
// Don't instrument functions using SEH for now. Splitting basic blocks like
// we do for coverage breaks WinEHPrepare.
// FIXME: Remove this when SEH no longer uses landingpad pattern matching.
@@ -299,12 +363,19 @@ bool SanitizerCoverageModule::runOnFunction(Function &F) {
return false;
if (Options.CoverageType >= SanitizerCoverageOptions::SCK_Edge)
SplitAllCriticalEdges(F);
- SmallVector<Instruction*, 8> IndirCalls;
- SmallVector<BasicBlock*, 16> AllBlocks;
- SmallVector<Instruction*, 8> CmpTraceTargets;
- SmallVector<Instruction*, 8> SwitchTraceTargets;
+ SmallVector<Instruction *, 8> IndirCalls;
+ SmallVector<BasicBlock *, 16> BlocksToInstrument;
+ SmallVector<Instruction *, 8> CmpTraceTargets;
+ SmallVector<Instruction *, 8> SwitchTraceTargets;
+
+ const DominatorTree *DT =
+ &getAnalysis<DominatorTreeWrapperPass>(F).getDomTree();
+ const PostDominatorTree *PDT =
+ &getAnalysis<PostDominatorTreeWrapperPass>(F).getPostDomTree();
+
for (auto &BB : F) {
- AllBlocks.push_back(&BB);
+ if (shouldInstrumentBlock(F, &BB, DT, PDT))
+ BlocksToInstrument.push_back(&BB);
for (auto &Inst : BB) {
if (Options.IndirectCalls) {
CallSite CS(&Inst);
@@ -319,7 +390,8 @@ bool SanitizerCoverageModule::runOnFunction(Function &F) {
}
}
}
- InjectCoverage(F, AllBlocks);
+
+ InjectCoverage(F, BlocksToInstrument);
InjectCoverageForIndirectCalls(F, IndirCalls);
InjectTraceForCmp(F, CmpTraceTargets);
InjectTraceForSwitch(F, SwitchTraceTargets);
@@ -346,28 +418,34 @@ bool SanitizerCoverageModule::InjectCoverage(Function &F,
// On every indirect call we call a run-time function
// __sanitizer_cov_indir_call* with two parameters:
// - callee address,
-// - global cache array that contains kCacheSize pointers (zero-initialized).
+// - global cache array that contains CacheSize pointers (zero-initialized).
// The cache is used to speed up recording the caller-callee pairs.
// The address of the caller is passed implicitly via caller PC.
-// kCacheSize is encoded in the name of the run-time function.
+// CacheSize is encoded in the name of the run-time function.
void SanitizerCoverageModule::InjectCoverageForIndirectCalls(
Function &F, ArrayRef<Instruction *> IndirCalls) {
- if (IndirCalls.empty()) return;
- const int kCacheSize = 16;
- const int kCacheAlignment = 64; // Align for better performance.
- Type *Ty = ArrayType::get(IntptrTy, kCacheSize);
+ if (IndirCalls.empty())
+ return;
+ const int CacheSize = 16;
+ const int CacheAlignment = 64; // Align for better performance.
+ Type *Ty = ArrayType::get(IntptrTy, CacheSize);
for (auto I : IndirCalls) {
IRBuilder<> IRB(I);
CallSite CS(I);
Value *Callee = CS.getCalledValue();
- if (isa<InlineAsm>(Callee)) continue;
+ if (isa<InlineAsm>(Callee))
+ continue;
GlobalVariable *CalleeCache = new GlobalVariable(
*F.getParent(), Ty, false, GlobalValue::PrivateLinkage,
Constant::getNullValue(Ty), "__sancov_gen_callee_cache");
- CalleeCache->setAlignment(kCacheAlignment);
- IRB.CreateCall(SanCovIndirCallFunction,
- {IRB.CreatePointerCast(Callee, IntptrTy),
- IRB.CreatePointerCast(CalleeCache, IntptrTy)});
+ CalleeCache->setAlignment(CacheAlignment);
+ if (Options.TracePC)
+ IRB.CreateCall(SanCovTracePCIndir,
+ IRB.CreatePointerCast(Callee, IntptrTy));
+ else
+ IRB.CreateCall(SanCovIndirCallFunction,
+ {IRB.CreatePointerCast(Callee, IntptrTy),
+ IRB.CreatePointerCast(CalleeCache, IntptrTy)});
}
}
@@ -376,7 +454,7 @@ void SanitizerCoverageModule::InjectCoverageForIndirectCalls(
// {NumCases, ValueSizeInBits, Case0Value, Case1Value, Case2Value, ... })
void SanitizerCoverageModule::InjectTraceForSwitch(
- Function &F, ArrayRef<Instruction *> SwitchTraceTargets) {
+ Function &, ArrayRef<Instruction *> SwitchTraceTargets) {
for (auto I : SwitchTraceTargets) {
if (SwitchInst *SI = dyn_cast<SwitchInst>(I)) {
IRBuilder<> IRB(I);
@@ -391,7 +469,7 @@ void SanitizerCoverageModule::InjectTraceForSwitch(
if (Cond->getType()->getScalarSizeInBits() <
Int64Ty->getScalarSizeInBits())
Cond = IRB.CreateIntCast(Cond, Int64Ty, false);
- for (auto It: SI->cases()) {
+ for (auto It : SI->cases()) {
Constant *C = It.getCaseValue();
if (C->getType()->getScalarSizeInBits() <
Int64Ty->getScalarSizeInBits())
@@ -409,15 +487,15 @@ void SanitizerCoverageModule::InjectTraceForSwitch(
}
}
-
void SanitizerCoverageModule::InjectTraceForCmp(
- Function &F, ArrayRef<Instruction *> CmpTraceTargets) {
+ Function &, ArrayRef<Instruction *> CmpTraceTargets) {
for (auto I : CmpTraceTargets) {
if (ICmpInst *ICMP = dyn_cast<ICmpInst>(I)) {
IRBuilder<> IRB(ICMP);
Value *A0 = ICMP->getOperand(0);
Value *A1 = ICMP->getOperand(1);
- if (!A0->getType()->isIntegerTy()) continue;
+ if (!A0->getType()->isIntegerTy())
+ continue;
uint64_t TypeSize = DL->getTypeStoreSizeInBits(A0->getType());
// __sanitizer_cov_trace_cmp((type_size << 32) | predicate, A0, A1);
IRB.CreateCall(
@@ -430,8 +508,8 @@ void SanitizerCoverageModule::InjectTraceForCmp(
}
void SanitizerCoverageModule::SetNoSanitizeMetadata(Instruction *I) {
- I->setMetadata(
- I->getModule()->getMDKindID("nosanitize"), MDNode::get(*C, None));
+ I->setMetadata(I->getModule()->getMDKindID("nosanitize"),
+ MDNode::get(*C, None));
}
void SanitizerCoverageModule::InjectCoverageAtBlock(Function &F, BasicBlock &BB,
@@ -448,7 +526,7 @@ void SanitizerCoverageModule::InjectCoverageAtBlock(Function &F, BasicBlock &BB,
bool IsEntryBB = &BB == &F.getEntryBlock();
DebugLoc EntryLoc;
if (IsEntryBB) {
- if (auto SP = getDISubprogram(&F))
+ if (auto SP = F.getSubprogram())
EntryLoc = DebugLoc::get(SP->getScopeLine(), 0, SP);
// Keep static allocas and llvm.localescape calls in the entry block. Even
// if we aren't splitting the block, it's nice for allocas to be before
@@ -465,16 +543,20 @@ void SanitizerCoverageModule::InjectCoverageAtBlock(Function &F, BasicBlock &BB,
ConstantInt::get(IntptrTy, (1 + NumberOfInstrumentedBlocks()) * 4));
Type *Int32PtrTy = PointerType::getUnqual(IRB.getInt32Ty());
GuardP = IRB.CreateIntToPtr(GuardP, Int32PtrTy);
- if (Options.TraceBB) {
+ if (Options.TracePC) {
+ IRB.CreateCall(SanCovTracePC); // gets the PC using GET_CALLER_PC.
+ IRB.CreateCall(EmptyAsm, {}); // Avoids callback merge.
+ } else if (Options.TraceBB) {
IRB.CreateCall(IsEntryBB ? SanCovTraceEnter : SanCovTraceBB, GuardP);
} else if (UseCalls) {
IRB.CreateCall(SanCovWithCheckFunction, GuardP);
} else {
LoadInst *Load = IRB.CreateLoad(GuardP);
- Load->setAtomic(Monotonic);
+ Load->setAtomic(AtomicOrdering::Monotonic);
Load->setAlignment(4);
SetNoSanitizeMetadata(Load);
- Value *Cmp = IRB.CreateICmpSGE(Constant::getNullValue(Load->getType()), Load);
+ Value *Cmp =
+ IRB.CreateICmpSGE(Constant::getNullValue(Load->getType()), Load);
Instruction *Ins = SplitBlockAndInsertIfThen(
Cmp, &*IP, false, MDBuilder(*C).createBranchWeights(1, 100000));
IRB.SetInsertPoint(Ins);
@@ -499,9 +581,16 @@ void SanitizerCoverageModule::InjectCoverageAtBlock(Function &F, BasicBlock &BB,
}
char SanitizerCoverageModule::ID = 0;
-INITIALIZE_PASS(SanitizerCoverageModule, "sancov",
- "SanitizerCoverage: TODO."
- "ModulePass", false, false)
+INITIALIZE_PASS_BEGIN(SanitizerCoverageModule, "sancov",
+ "SanitizerCoverage: TODO."
+ "ModulePass",
+ false, false)
+INITIALIZE_PASS_DEPENDENCY(DominatorTreeWrapperPass)
+INITIALIZE_PASS_DEPENDENCY(PostDominatorTreeWrapperPass)
+INITIALIZE_PASS_END(SanitizerCoverageModule, "sancov",
+ "SanitizerCoverage: TODO."
+ "ModulePass",
+ false, false)
ModulePass *llvm::createSanitizerCoverageModulePass(
const SanitizerCoverageOptions &Options) {
return new SanitizerCoverageModule(Options);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-15 10:35:04 +0000