#define LIBFUZZER_FREEBSD 0
#define LIBFUZZER_OPENBSD 0
#define LIBFUZZER_WINDOWS 0
+#define LIBFUZZER_EMSCRIPTEN 0
#elif __APPLE__
#define LIBFUZZER_APPLE 1
#define LIBFUZZER_FUCHSIA 0
#define LIBFUZZER_FREEBSD 0
#define LIBFUZZER_OPENBSD 0
#define LIBFUZZER_WINDOWS 0
+#define LIBFUZZER_EMSCRIPTEN 0
#elif __NetBSD__
#define LIBFUZZER_APPLE 0
#define LIBFUZZER_FUCHSIA 0
#define LIBFUZZER_FREEBSD 0
#define LIBFUZZER_OPENBSD 0
#define LIBFUZZER_WINDOWS 0
+#define LIBFUZZER_EMSCRIPTEN 0
#elif __FreeBSD__
#define LIBFUZZER_APPLE 0
#define LIBFUZZER_FUCHSIA 0
#define LIBFUZZER_FREEBSD 1
#define LIBFUZZER_OPENBSD 0
#define LIBFUZZER_WINDOWS 0
+#define LIBFUZZER_EMSCRIPTEN 0
#elif __OpenBSD__
#define LIBFUZZER_APPLE 0
#define LIBFUZZER_FUCHSIA 0
#define LIBFUZZER_FREEBSD 0
#define LIBFUZZER_OPENBSD 1
#define LIBFUZZER_WINDOWS 0
+#define LIBFUZZER_EMSCRIPTEN 0
#elif _WIN32
#define LIBFUZZER_APPLE 0
#define LIBFUZZER_FUCHSIA 0
#define LIBFUZZER_FREEBSD 0
#define LIBFUZZER_OPENBSD 0
#define LIBFUZZER_WINDOWS 1
+#define LIBFUZZER_EMSCRIPTEN 0
#elif __Fuchsia__
#define LIBFUZZER_APPLE 0
#define LIBFUZZER_FUCHSIA 1
#define LIBFUZZER_FREEBSD 0
#define LIBFUZZER_OPENBSD 0
#define LIBFUZZER_WINDOWS 0
+#define LIBFUZZER_EMSCRIPTEN 0
+#elif __EMSCRIPTEN__
+#define LIBFUZZER_APPLE 0
+#define LIBFUZZER_FUCHSIA 0
+#define LIBFUZZER_LINUX 0
+#define LIBFUZZER_NETBSD 0
+#define LIBFUZZER_FREEBSD 0
+#define LIBFUZZER_OPENBSD 0
+#define LIBFUZZER_WINDOWS 0
+#define LIBFUZZER_EMSCRIPTEN 1
#else
#error "Support for your platform has not been implemented"
#endif
#define LIBFUZZER_POSIX \
(LIBFUZZER_APPLE || LIBFUZZER_LINUX || LIBFUZZER_NETBSD || \
- LIBFUZZER_FREEBSD || LIBFUZZER_OPENBSD)
+ LIBFUZZER_FREEBSD || LIBFUZZER_OPENBSD || LIBFUZZER_EMSCRIPTEN)
#ifdef __x86_64
# if __has_attribute(target)
}
static void StartRssThread(Fuzzer *F, size_t RssLimitMb) {
- if (!RssLimitMb) return;
+ if (!RssLimitMb)
+ return;
std::thread T(RssThread, F, RssLimitMb);
T.detach();
}
if (U.size() <= Word::GetMaxSize())
MD->AddWordToManualDictionary(Word(U.data(), U.size()));
+ // Threads are only supported by Chrome. Don't use them with emscripten
+ // for now.
+#if !LIBFUZZER_EMSCRIPTEN
StartRssThread(F, Flags.rss_limit_mb);
+#endif // LIBFUZZER_EMSCRIPTEN
Options.HandleAbrt = Flags.handle_abrt;
Options.HandleBus = Flags.handle_bus;
}
void SetSignalHandler(const FuzzingOptions& Options) {
- if (Options.UnitTimeoutSec > 0)
+ // setitimer is not implemented in emscripten.
+ if (Options.UnitTimeoutSec > 0 && !LIBFUZZER_EMSCRIPTEN)
SetTimer(Options.UnitTimeoutSec / 2 + 1);
if (Options.HandleInt)
SetSigaction(SIGINT, InterruptHandler);
if (getrusage(RUSAGE_SELF, &usage))
return 0;
if (LIBFUZZER_LINUX || LIBFUZZER_FREEBSD || LIBFUZZER_NETBSD ||
- LIBFUZZER_OPENBSD) {
+ LIBFUZZER_OPENBSD || LIBFUZZER_EMSCRIPTEN) {
// ru_maxrss is in KiB
return usage.ru_maxrss >> 10;
} else if (LIBFUZZER_APPLE) {