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driver: Fix startup crash when fuzzing native libraries #883

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Nov 6, 2023
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driver: Fix startup crash when fuzzing native libraries #883

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3 changes: 3 additions & 0 deletions src/main/native/com/code_intelligence/jazzer/driver/libfuzzer_callbacks.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -119,6 +119,9 @@ extern "C" [[maybe_unused]] bool __sanitizer_weak_is_relevant_pc(
Java_com_code_1intelligence_jazzer_runtime_TraceDataFlowNativeCallbacks_handleLibraryLoad(
JNIEnv *, jclass) {
std::call_once(ignore_list_flag, [] {
// Force std::cout to be fully initialized.
// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=26123
static std::ios_base::Init initIostreams;
std::cout << "INFO: detected a native library load, enabling interception "
"for libc functions"
<< std::endl;
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