diff options
| -rw-r--r-- | nptl/pthreadP.h | 2 | ||||
| -rw-r--r-- | nptl/pthread_sigmask.c | 1 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/sigprocmask.c | 20 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/test-errno-linux.c | 19 |
4 files changed, 27 insertions, 15 deletions
diff --git a/nptl/pthreadP.h b/nptl/pthreadP.h index 06fb0d7..c4e72f5 100644 --- a/nptl/pthreadP.h +++ b/nptl/pthreadP.h @@ -482,6 +482,8 @@ extern void __pthread_testcancel (void); extern int __pthread_clockjoin_ex (pthread_t, void **, clockid_t, const struct timespec *, bool) attribute_hidden; +extern int __pthread_sigmask (int, const sigset_t *, sigset_t *); +libc_hidden_proto (__pthread_sigmask); #if IS_IN (libpthread) diff --git a/nptl/pthread_sigmask.c b/nptl/pthread_sigmask.c index 0351044..c6c6e83 100644 --- a/nptl/pthread_sigmask.c +++ b/nptl/pthread_sigmask.c @@ -46,6 +46,7 @@ __pthread_sigmask (int how, const sigset_t *newmask, sigset_t *oldmask) ? INTERNAL_SYSCALL_ERRNO (result) : 0); } +libc_hidden_def (__pthread_sigmask) versioned_symbol (libc, __pthread_sigmask, pthread_sigmask, GLIBC_2_32); #if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_32) diff --git a/sysdeps/unix/sysv/linux/sigprocmask.c b/sysdeps/unix/sysv/linux/sigprocmask.c index eb9e4d5..59bf6fd 100644 --- a/sysdeps/unix/sysv/linux/sigprocmask.c +++ b/sysdeps/unix/sysv/linux/sigprocmask.c @@ -22,21 +22,11 @@ int __sigprocmask (int how, const sigset_t *set, sigset_t *oset) { - sigset_t local_newmask; - - /* The only thing we have to make sure here is that SIGCANCEL and - SIGSETXID are not blocked. */ - if (set != NULL - && __glibc_unlikely (__sigismember (set, SIGCANCEL) - || __glibc_unlikely (__sigismember (set, SIGSETXID)))) - { - local_newmask = *set; - __sigdelset (&local_newmask, SIGCANCEL); - __sigdelset (&local_newmask, SIGSETXID); - set = &local_newmask; - } - - return INLINE_SYSCALL_CALL (rt_sigprocmask, how, set, oset, _NSIG / 8); + int result = __pthread_sigmask (how, set, oset); + if (result == 0) + return 0; + __set_errno (result); + return -1; } libc_hidden_def (__sigprocmask) weak_alias (__sigprocmask, sigprocmask) diff --git a/sysdeps/unix/sysv/linux/test-errno-linux.c b/sysdeps/unix/sysv/linux/test-errno-linux.c index b748f8f..838ccf02 100644 --- a/sysdeps/unix/sysv/linux/test-errno-linux.c +++ b/sysdeps/unix/sysv/linux/test-errno-linux.c @@ -121,6 +121,17 @@ check_error_in_list (int code, int *codes, size_t count) test_wrp_rv(int, "%d", LIST_FORWARD (experr), syscall, __VA_ARGS__) static int +invalid_sigprocmask_how (void) +{ + int n = 0; + const int how[] = { SIG_BLOCK, SIG_UNBLOCK, SIG_SETMASK }; + for (int i = 0; i < array_length (how); i++) + if (how[i] == n) + n++; + return n; +} + +static int do_test (void) { fd_set rs, ws, es; @@ -133,10 +144,13 @@ do_test (void) struct sched_param sch_param; struct timespec ts; struct timeval tv; + sigset_t sigs; unsigned char vec[16]; ss.ss_flags = ~SS_DISABLE; ts.tv_sec = -1; + sigemptyset (&sigs); + int fails = 0; fails |= test_wrp (EINVAL, epoll_create, -1); fails |= test_wrp (EINVAL, epoll_create1, EPOLL_CLOEXEC + 1); @@ -175,6 +189,11 @@ do_test (void) fails |= test_wrp (EBADF, sendfile, -1, -1, &off, 0); fails |= test_wrp (EINVAL, sigaltstack, &ss, NULL); fails |= test_wrp (ECHILD, wait4, -1, &status, 0, NULL); + /* Austin Group issue #1132 states EINVAL should be returned for invalid + how argument iff the new set mask is non-null. And Linux follows the + standard on this regard. */ + fails |= test_wrp (EINVAL, sigprocmask, invalid_sigprocmask_how (), &sigs, + NULL); return fails; } |