http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55439
Bug #: 55439
Summary: ThreadSanitizer: handle atomic operations
Classification: Unclassified
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: other
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: dvyu...@google.com
ThreadSanitizer instrumentation pass need to intercept builtin atomic
operations.
In the other compiler we intercept __sync builtins, __atomic builtins, C1x
Atomic(T) and C1x/C++11 <atomic> atomics and translate them into calls into
runtime library.
For example,
atomic<int32_t> a;
a.load(memory_order_acquire);
is translated into:
__tsan_atomic32_load(&a, 2);
The runtime interface is described in libsanitizer/tsan/tsan_interface_atomic.h
