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Diffstat (limited to 'clang/docs/ThreadSanitizer.rst')
| -rw-r--r-- | clang/docs/ThreadSanitizer.rst | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/clang/docs/ThreadSanitizer.rst b/clang/docs/ThreadSanitizer.rst index e434062bed3..4cf0e37f83b 100644 --- a/clang/docs/ThreadSanitizer.rst +++ b/clang/docs/ThreadSanitizer.rst @@ -68,6 +68,20 @@ Currently, ThreadSanitizer symbolizes its output using an external #0 pthread_create tsan_interceptors.cc:705 (exe+0x00000000c790) #1 main tiny_race.c:9 (exe+0x00000000a3a4) +``__has_feature(thread_sanitizer)`` +------------------------------------ + +In some cases one may need to execute different code depending on whether +ThreadSanitizer is enabled. +:ref:`\_\_has\_feature <langext-__has_feature-__has_extension>` can be used for +this purpose. + +.. code-block:: c + + #if defined(__has_feature) && __has_feature(thread_sanitizer) + // code that builds only under ThreadSanitizer + #endif + Limitations ----------- |
