diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/fork.c')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/fork.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/fork.c b/nptl/sysdeps/unix/sysv/linux/fork.c index eba28064ea..e75f9d51da 100644 --- a/nptl/sysdeps/unix/sysv/linux/fork.c +++ b/nptl/sysdeps/unix/sysv/linux/fork.c @@ -25,6 +25,7 @@ #include <tls.h> #include "fork.h" #include <bits/stdio-lock.h> +#include <assert.h> unsigned long int *__fork_generation_pointer; @@ -68,6 +69,8 @@ __libc_fork (void) _IO_list_lock (); + pid_t ppid = THREAD_GETMEM (THREAD_SELF, tid); + #ifdef ARCH_FORK pid = ARCH_FORK (); #else @@ -75,8 +78,11 @@ __libc_fork (void) pid = INLINE_SYSCALL (fork, 0); #endif + if (pid == 0) { + assert (THREAD_GETMEM (THREAD_SELF, tid) != ppid); + if (__fork_generation_pointer != NULL) *__fork_generation_pointer += 4; @@ -101,6 +107,8 @@ __libc_fork (void) } else { + assert (THREAD_GETMEM (THREAD_SELF, tid) == ppid); + /* We execute this even if the 'fork' call failed. */ _IO_list_unlock (); |