diff options
Diffstat (limited to 'ldso')
| -rw-r--r-- | ldso/dynlink.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/ldso/dynlink.c b/ldso/dynlink.c index 61714f40..6b868c84 100644 --- a/ldso/dynlink.c +++ b/ldso/dynlink.c @@ -20,6 +20,7 @@ #include <semaphore.h> #include <sys/membarrier.h> #include "pthread_impl.h" +#include "fork_impl.h" #include "libc.h" #include "dynlink.h" @@ -1426,6 +1427,17 @@ void __libc_exit_fini() } } +void __ldso_atfork(int who) +{ + if (who<0) { + pthread_rwlock_wrlock(&lock); + pthread_mutex_lock(&init_fini_lock); + } else { + pthread_mutex_unlock(&init_fini_lock); + pthread_rwlock_unlock(&lock); + } +} + static struct dso **queue_ctors(struct dso *dso) { size_t cnt, qpos, spos, i; @@ -1484,6 +1496,13 @@ static struct dso **queue_ctors(struct dso *dso) } queue[qpos] = 0; for (i=0; i<qpos; i++) queue[i]->mark = 0; + for (i=0; i<qpos; i++) + if (queue[i]->ctor_visitor && queue[i]->ctor_visitor->tid < 0) { + error("State of %s is inconsistent due to multithreaded fork\n", + queue[i]->name); + free(queue); + if (runtime) longjmp(*rtld_fail, 1); + } return queue; } |