diff options
Diffstat (limited to 'src/test/fuzz/fuzz.cpp')
| -rw-r--r-- | src/test/fuzz/fuzz.cpp | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/src/test/fuzz/fuzz.cpp b/src/test/fuzz/fuzz.cpp index f9915187bd..c1c9945a04 100644 --- a/src/test/fuzz/fuzz.cpp +++ b/src/test/fuzz/fuzz.cpp @@ -79,10 +79,31 @@ void FuzzFrameworkRegisterTarget(std::string_view name, TypeTestOneInput target, static std::string_view g_fuzz_target; static const TypeTestOneInput* g_test_one_input{nullptr}; + +#if defined(__clang__) && defined(__linux__) +extern "C" void __llvm_profile_reset_counters(void) __attribute__((weak)); +extern "C" void __gcov_reset(void) __attribute__((weak)); + +void ResetCoverageCounters() +{ + if (__llvm_profile_reset_counters) { + __llvm_profile_reset_counters(); + } + + if (__gcov_reset) { + __gcov_reset(); + } +} +#else +void ResetCoverageCounters() {} +#endif + + void initialize() { - // Terminate immediately if a fuzzing harness ever tries to create a TCP socket. - CreateSock = [](const sa_family_t&) -> std::unique_ptr<Sock> { std::terminate(); }; + // Terminate immediately if a fuzzing harness ever tries to create a socket. + // Individual tests can override this by pointing CreateSock to a mocked alternative. + CreateSock = [](int, int, int) -> std::unique_ptr<Sock> { std::terminate(); }; // Terminate immediately if a fuzzing harness ever tries to perform a DNS lookup. g_dns_lookup = [](const std::string& name, bool allow_lookup) { @@ -129,6 +150,8 @@ void initialize() Assert(!g_test_one_input); g_test_one_input = &it->second.test_one_input; it->second.opts.init(); + + ResetCoverageCounters(); } #if defined(PROVIDE_FUZZ_MAIN_FUNCTION) |