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-rw-r--r--compiler-rt/lib/sanitizer_common/sanitizer_common.cc37
1 files changed, 0 insertions, 37 deletions
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_common.cc b/compiler-rt/lib/sanitizer_common/sanitizer_common.cc
index e5ae1a9f15f..970b11c00b1 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_common.cc
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_common.cc
@@ -348,43 +348,6 @@ static int InstallMallocFreeHooks(void (*malloc_hook)(const void *, uptr),
return 0;
}
-static const u32 kUnclaimedTid = 0xfffffe;
-static atomic_uint32_t reporting_thread_tid = {kUnclaimedTid};
-
-ScopedErrorReportLock::ScopedErrorReportLock(u32 current_tid) {
- for (;;) {
- u32 expected_tid = kUnclaimedTid;
- if (current_tid == kUnclaimedTid ||
- atomic_compare_exchange_strong(&reporting_thread_tid, &expected_tid,
- current_tid, memory_order_relaxed)) {
- // We've claimed reporting_thread_tid_ so proceed.
- CommonSanitizerReportMutex.Lock();
- return;
- }
-
- if (expected_tid == current_tid) {
- // This is either asynch signal or nested error during error reporting.
- // Fail simple to avoid deadlocks in Report().
-
- // Can't use Report() here because of potential deadlocks in nested
- // signal handlers.
- CatastrophicErrorWrite(SanitizerToolName,
- internal_strlen(SanitizerToolName));
- static const char msg[] = ": nested bug in the same thread, aborting.\n";
- CatastrophicErrorWrite(msg, sizeof(msg) - 1);
-
- internal__exit(common_flags()->exitcode);
- }
-
- internal_sched_yield();
- }
-}
-
-ScopedErrorReportLock::~ScopedErrorReportLock() {
- CommonSanitizerReportMutex.Unlock();
- atomic_store_relaxed(&reporting_thread_tid, kUnclaimedTid);
-}
-
} // namespace __sanitizer
using namespace __sanitizer; // NOLINT
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