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author | Colin Percival <cperciva@FreeBSD.org> | 2010-06-13 01:13:36 +0000 |
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committer | Colin Percival <cperciva@FreeBSD.org> | 2010-06-13 01:13:36 +0000 |
commit | ff847ecb82efc5ec38487ab71c5f00f482e00102 (patch) | |
tree | 4fc696a236b0b4050f7803130f79d9657bdf0461 /lib/libc/stdlib | |
parent | 27d1c65e8e59b03d209d4497b5f0d9a041bca1bc (diff) | |
download | src-ff847ecb82efc5ec38487ab71c5f00f482e00102.tar.gz src-ff847ecb82efc5ec38487ab71c5f00f482e00102.zip |
In threaded processes, destroy the mutex atexit_mutex when we've
finished using it. This allows the mutex's allocated memory to be
freed.
This is one sense a rather silly change, since at this point we're
less than a microsecond away from calling _exit; but fixing this
memory leak is likely to make life easier for anyone trying to
track down other memory leaks.
Notes
Notes:
svn path=/head/; revision=209117
Diffstat (limited to 'lib/libc/stdlib')
-rw-r--r-- | lib/libc/stdlib/atexit.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/libc/stdlib/atexit.c b/lib/libc/stdlib/atexit.c index efd12649e009..aba3eddeea77 100644 --- a/lib/libc/stdlib/atexit.c +++ b/lib/libc/stdlib/atexit.c @@ -54,6 +54,7 @@ static pthread_mutex_t atexit_mutex = PTHREAD_MUTEX_INITIALIZER; #define _MUTEX_LOCK(x) if (__isthreaded) _pthread_mutex_lock(x) #define _MUTEX_UNLOCK(x) if (__isthreaded) _pthread_mutex_unlock(x) +#define _MUTEX_DESTROY(x) if (__isthreaded) _pthread_mutex_destroy(x) struct atexit { struct atexit *next; /* next in list */ @@ -182,4 +183,6 @@ __cxa_finalize(void *dso) } } _MUTEX_UNLOCK(&atexit_mutex); + if (dso == NULL) + _MUTEX_DESTROY(&atexit_mutex); } |