diff options
| -rw-r--r-- | compiler-rt/lib/asan/asan_rtl.cc | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/compiler-rt/lib/asan/asan_rtl.cc b/compiler-rt/lib/asan/asan_rtl.cc index 15b5035e648..4cff736f213 100644 --- a/compiler-rt/lib/asan/asan_rtl.cc +++ b/compiler-rt/lib/asan/asan_rtl.cc @@ -66,8 +66,14 @@ static void AsanCheckFailed(const char *file, int line, const char *cond, u64 v1, u64 v2) { Report("AddressSanitizer CHECK failed: %s:%d \"%s\" (0x%zx, 0x%zx)\n", file, line, cond, (uptr)v1, (uptr)v2); - // FIXME: check for infinite recursion without a thread-local counter here. - PRINT_CURRENT_STACK_CHECK(); + + // Print a stack trace the first time we come here. Otherwise, we probably + // failed a CHECK during symbolization. + static atomic_uint32_t num_calls; + if (atomic_fetch_add(&num_calls, 1, memory_order_relaxed) == 0) { + PRINT_CURRENT_STACK_CHECK(); + } + Die(); } |
