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| author | Ivan Maidanski <ivmai@mail.ru> | 2012-11-22 08:39:20 +0400 |
|---|---|---|
| committer | Ivan Maidanski <ivmai@mail.ru> | 2012-11-22 13:43:09 +0400 |
| commit | 37d8fb73e7210509bdc5f3e69b1ec5f8dcc6bda0 (patch) | |
| tree | d47cc9ab866629c74fcd41b3b2ffbc99e762fec9 /pthread_support.c | |
| parent | 0a420dc3f8b69a5675b504f7975d170ee79f1ee2 (diff) | |
| download | bdwgc-37d8fb73e7210509bdc5f3e69b1ec5f8dcc6bda0.tar.gz | |
Prevent POSIX fork if mprotect_thread is started (Darwin)
* pthread_support.c (GC_atfork_prepare): Abort if GC_dirty_maintained
is set for Darwin (only if MPROTECT_VDB) since graceful suspend/resume
of mprotect_thread is unsupported at present.
Diffstat (limited to 'pthread_support.c')
| -rw-r--r-- | pthread_support.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/pthread_support.c b/pthread_support.c index f270b59e..c65ecfab 100644 --- a/pthread_support.c +++ b/pthread_support.c @@ -996,6 +996,12 @@ static void fork_child_proc(void) /* Routines for fork handling by client (no-op if pthread_atfork works). */ GC_API void GC_CALL GC_atfork_prepare(void) { +# if defined(GC_DARWIN_THREADS) && defined(MPROTECT_VDB) + if (GC_dirty_maintained) { + GC_ASSERT(0 == GC_handle_fork); + ABORT("Unable to fork while mprotect_thread is running"); + } +# endif if (GC_handle_fork <= 0) fork_prepare_proc(); } |