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[ASan] make ASan assume ASAN_OPTIONS=symbolize=1 if ASAN_EXTERNAL_SYMBOLIZER is defined 

llvm-svn: 177036
This commit is contained in:
Alexey Samsonov 2013-03-14 10:07:40 +00:00
parent 0608ae89a2
commit 140cd84155
1 changed files with 8 additions and 6 deletions
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14
compiler-rt/lib/asan/asan_rtl.cc
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@ -130,11 +130,13 @@ static void ParseFlagsFromString(Flags *f, const char *str) {
ParseFlag(str, &f->strict_memcmp, "strict_memcmp");
}
static const char *asan_external_symbolizer;
void InitializeFlags(Flags *f, const char *env) {
internal_memset(f, 0, sizeof(*f));
f->quarantine_size = (ASAN_LOW_MEMORY) ? 1UL << 26 : 1UL << 28;
f->symbolize = false;
f->symbolize = (asan_external_symbolizer != 0);
f->verbosity = 0;
f->redzone = ASAN_ALLOCATOR_VERSION == 2 ? 16 : (ASAN_LOW_MEMORY) ? 64 : 128;
f->debug = false;
@ -426,6 +428,8 @@ void __asan_init() {
SetCheckFailedCallback(AsanCheckFailed);
SetPrintfAndReportCallback(AppendToErrorMessageBuffer);
// Check if external symbolizer is defined before parsing the flags.
asan_external_symbolizer = GetEnv("ASAN_SYMBOLIZER_PATH");
// Initialize flags. This must be done early, because most of the
// initialization steps look at flags().
const char *options = GetEnv("ASAN_OPTIONS");
@ -503,11 +507,9 @@ void __asan_init() {
InstallSignalHandlers();
// Start symbolizer process if necessary.
if (flags()->symbolize) {
const char *external_symbolizer = GetEnv("ASAN_SYMBOLIZER_PATH");
if (external_symbolizer) {
InitializeExternalSymbolizer(external_symbolizer);
}
if (flags()->symbolize && asan_external_symbolizer &&
asan_external_symbolizer[0]) {
InitializeExternalSymbolizer(asan_external_symbolizer);
}
// On Linux AsanThread::ThreadStart() calls malloc() that's why asan_inited