about summary refs log tree commit diff
path: root/sysdeps/unix/sysv/linux/sigpending.c
diff options
context:
space:
mode:
authorAdhemerval Zanella <adhemerval.zanella@linaro.org>2020-03-12 09:50:19 -0300
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2020-04-21 15:10:10 -0300
commit566e10aa7292bacd74d229ca6f2cd9e8c8ba8748 (patch)
tree8418dc7134fe1223d7f74db7d602521a4b5afa11 /sysdeps/unix/sysv/linux/sigpending.c
parent2f6fa80147f0cf74c0d411a0e07c5655deb436b3 (diff)
downloadglibc-566e10aa7292bacd74d229ca6f2cd9e8c8ba8748.tar.gz
glibc-566e10aa7292bacd74d229ca6f2cd9e8c8ba8748.tar.xz
glibc-566e10aa7292bacd74d229ca6f2cd9e8c8ba8748.zip
signal: Only handle on NSIG signals on signal functions (BZ #25657)
The upper bits of the sigset_t s not fully initialized in the signal
mask calls that return information from kernel (sigprocmask,
sigpending, and pthread_sigmask), since the exported sigset_t size
(1024 bits) is larger than Linux support one (64 or 128 bits).
It might make sigisemptyset/sigorset/sigandset fail if the mask
is filled prior the call.

This patch changes the internal signal function to handle up to
supported Linux signal number (_NSIG), the remaining bits are
untouched.

Checked on x86_64-linux-gnu and i686-linux-gnu.
Diffstat (limited to 'sysdeps/unix/sysv/linux/sigpending.c')
-rw-r--r--sysdeps/unix/sysv/linux/sigpending.c6
1 files changed, 1 insertions, 5 deletions
diff --git a/sysdeps/unix/sysv/linux/sigpending.c b/sysdeps/unix/sysv/linux/sigpending.c
index f6bedb5182..458a3cf99e 100644
--- a/sysdeps/unix/sysv/linux/sigpending.c
+++ b/sysdeps/unix/sysv/linux/sigpending.c
@@ -15,13 +15,9 @@
    License along with the GNU C Library; if not, see
    <https://www.gnu.org/licenses/>.  */
 
-#include <errno.h>
 #include <signal.h>
-#include <unistd.h>
-
 #include <sysdep.h>
-#include <sys/syscall.h>
-
+#include <sigsetops.h>
 
 /* Change the set of blocked signals to SET,
    wait until a signal arrives, and restore the set of blocked signals.  */