diff options
Diffstat (limited to 'sysdeps/nptl/fork.c')
| -rw-r--r-- | sysdeps/nptl/fork.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/sysdeps/nptl/fork.c b/sysdeps/nptl/fork.c index 27f8d52e30..1a68cbd647 100644 --- a/sysdeps/nptl/fork.c +++ b/sysdeps/nptl/fork.c @@ -31,7 +31,7 @@ #include <fork.h> #include <arch-fork.h> #include <futex-internal.h> - +#include <malloc/malloc-internal.h> static void fresetlockfiles (void) @@ -111,6 +111,11 @@ __libc_fork (void) _IO_list_lock (); + /* Acquire malloc locks. This needs to come last because fork + handlers may use malloc, and the libio list lock has an indirect + malloc dependency as well (via the getdelim function). */ + __malloc_fork_lock_parent (); + #ifndef NDEBUG pid_t ppid = THREAD_GETMEM (THREAD_SELF, tid); #endif @@ -168,6 +173,9 @@ __libc_fork (void) # endif #endif + /* Release malloc locks. */ + __malloc_fork_unlock_child (); + /* Reset the file list. These are recursive mutexes. */ fresetlockfiles (); @@ -209,6 +217,9 @@ __libc_fork (void) /* Restore the PID value. */ THREAD_SETMEM (THREAD_SELF, pid, parentpid); + /* Release malloc locks, parent process variant. */ + __malloc_fork_unlock_parent (); + /* We execute this even if the 'fork' call failed. */ _IO_list_unlock (); |