diff options
Diffstat (limited to 'compiler-rt/lib/fuzzer/FuzzerTracePC.cpp')
| -rw-r--r-- | compiler-rt/lib/fuzzer/FuzzerTracePC.cpp | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/compiler-rt/lib/fuzzer/FuzzerTracePC.cpp b/compiler-rt/lib/fuzzer/FuzzerTracePC.cpp index f03be7a39502..b2ca7693e540 100644 --- a/compiler-rt/lib/fuzzer/FuzzerTracePC.cpp +++ b/compiler-rt/lib/fuzzer/FuzzerTracePC.cpp @@ -19,6 +19,7 @@ #include "FuzzerDictionary.h" #include "FuzzerExtFunctions.h" #include "FuzzerIO.h" +#include "FuzzerPlatform.h" #include "FuzzerUtil.h" #include "FuzzerValueBitMap.h" #include <set> @@ -240,7 +241,9 @@ void TracePC::IterateCoveredFunctions(CallBack CB) { void TracePC::SetFocusFunction(const std::string &FuncName) { // This function should be called once. assert(!FocusFunctionCounterPtr); - if (FuncName.empty()) + // "auto" is not a valid function name. If this function is called with "auto" + // that means the auto focus functionality failed. + if (FuncName.empty() || FuncName == "auto") return; for (size_t M = 0; M < NumModules; M++) { auto &PCTE = ModulePCTable[M]; @@ -256,6 +259,10 @@ void TracePC::SetFocusFunction(const std::string &FuncName) { return; } } + + Printf("ERROR: Failed to set focus function. Make sure the function name is " + "valid (%s) and symbolization is enabled.\n", FuncName.c_str()); + exit(1); } bool TracePC::ObservedFocusFunction() { |