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xst: disable lsan when xs exit imminent #1067

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xst: disable lsan when xs exit imminent #1067

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21 changes: 13 additions & 8 deletions xs/tools/xst.c
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Expand Up @@ -237,7 +237,16 @@ static char *gxAbortStrings[] = {
static txAgentCluster gxAgentCluster;

#if OSSFUZZ
static int lsan_disabled = 0;

// allow toggling ASAN leak-checking
__attribute__((used))
int __lsan_is_turned_off() {
return lsan_disabled;
}

int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
lsan_disabled = 0;
fuzz_oss(Data, Size);
return 0;
}
Expand Down Expand Up @@ -1966,14 +1975,6 @@ int fuzz_oss(const uint8_t *Data, size_t script_size)
return 0;
}

const char *__lsan_default_suppressions()
{
return "leak:fxStringifyJSONChars\n"
"leak:fxStringifyJSONCharacter\n"
"leak:fxStringifyJSON\n"
"leak:fxParserCode\n";
}

#endif

#if 1 || FUZZING || FUZZILLI
Expand Down Expand Up @@ -2128,6 +2129,10 @@ void fxAbort(txMachine* the, int status)
if (the->abortStatus) // xsEndHost calls fxAbort!
return;
if (status) {
// disable leak checking
#if OSSFUZZ
lsan_disabled = 1;
#endif
the->abortStatus = status;
fxExitToHost(the);
}
Expand Down