diff options
Diffstat (limited to 'libcxxabi/src')
| -rw-r--r-- | libcxxabi/src/cxa_guard.cpp | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/libcxxabi/src/cxa_guard.cpp b/libcxxabi/src/cxa_guard.cpp index 742bac385be..814aaeb18f0 100644 --- a/libcxxabi/src/cxa_guard.cpp +++ b/libcxxabi/src/cxa_guard.cpp @@ -7,13 +7,20 @@ // //===----------------------------------------------------------------------===// -#include "cxxabi.h" #include "abort_message.h" #include <pthread.h> #include <stdint.h> -#include <stdio.h> -#include <stdlib.h> + +/* + This implementation must be careful to not call code external to this file + which will turn around and try to call __cxa_guard_acquire reentrantly. + For this reason, the headers of this file are as restricted as possible. + Previous implementations of this code for __APPLE__ have used + pthread_mutex_lock and the abort_message utility without problem. This + implementation also uses pthread_cond_wait which has tested to not be a + problem. +*/ namespace __cxxabiv1 { |
