diff options
Diffstat (limited to 'newlib/libc/stdlib/quick_exit.c')
| -rw-r--r-- | newlib/libc/stdlib/quick_exit.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/newlib/libc/stdlib/quick_exit.c b/newlib/libc/stdlib/quick_exit.c index aaa5f9f7f..5ab2609bf 100644 --- a/newlib/libc/stdlib/quick_exit.c +++ b/newlib/libc/stdlib/quick_exit.c @@ -44,7 +44,9 @@ struct quick_exit_handler { /** * Lock protecting the handlers list. */ +#ifndef __SINGLE_THREAD__ __LOCK_INIT(static, __at_quick_exit_mutex); +#endif /** * Stack of cleanup handlers. These will be invoked in reverse order when */ @@ -60,10 +62,14 @@ at_quick_exit(void (*func)(void)) if (NULL == h) return (1); h->cleanup = func; +#ifndef __SINGLE_THREAD__ __lock_acquire(__at_quick_exit_mutex); +#endif h->next = handlers; handlers = h; +#ifndef __SINGLE_THREAD__ __lock_release(__at_quick_exit_mutex); +#endif return (0); } |