diff options
Diffstat (limited to 'absl/base/internal/thread_identity.cc')
| -rw-r--r-- | absl/base/internal/thread_identity.cc | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/absl/base/internal/thread_identity.cc b/absl/base/internal/thread_identity.cc index d63a04ae..6ea010ed 100644 --- a/absl/base/internal/thread_identity.cc +++ b/absl/base/internal/thread_identity.cc @@ -23,6 +23,7 @@ #include <cassert> #include <memory> +#include "absl/base/attributes.h" #include "absl/base/call_once.h" #include "absl/base/internal/raw_logging.h" #include "absl/base/internal/spinlock.h" @@ -53,9 +54,11 @@ void AllocateThreadIdentityKey(ThreadIdentityReclaimerFunction reclaimer) { // exist within a process (via dlopen() or similar), references to // thread_identity_ptr from each instance of the code will refer to // *different* instances of this ptr. -#ifdef __GNUC__ +// Apple platforms have the visibility attribute, but issue a compile warning +// that protected visibility is unsupported. +#if ABSL_HAVE_ATTRIBUTE(visibility) && !defined(__APPLE__) __attribute__((visibility("protected"))) -#endif // __GNUC__ +#endif // ABSL_HAVE_ATTRIBUTE(visibility) && !defined(__APPLE__) #if ABSL_PER_THREAD_TLS // Prefer __thread to thread_local as benchmarks indicate it is a bit faster. ABSL_PER_THREAD_TLS_KEYWORD ThreadIdentity* thread_identity_ptr = nullptr; |