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authorAdhemerval Zanella <adhemerval.zanella@linaro.org>2020-04-23 10:58:01 -0300
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2020-07-07 14:10:58 -0300
commitf26d456b98abf02b3ff92f1a3c0d4473b7ffd85c (patch)
treee61f7a38a3f7ce9b8394d1ce8001cf6a3a9dc33e /sysdeps/unix/sysv/linux/aio_misc.h
parentf13d260190d47bd38c0ae939080001e7bb58bd04 (diff)
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linux: Fix __NSIG_WORDS and add __NSIG_BYTES
The __NSIG_WORDS value is based on minimum number of words to hold
the maximum number of signals supported by the architecture.

This patch also adds __NSIG_BYTES, which is the number of bytes
required to represent the supported number of signals.  It is used in
syscalls which takes a sigset_t.

Checked on x86_64-linux-gnu and i686-linux-gnu.

Tested-by: Carlos O'Donell <carlos@redhat.com>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Diffstat (limited to 'sysdeps/unix/sysv/linux/aio_misc.h')
-rw-r--r--sysdeps/unix/sysv/linux/aio_misc.h9
1 files changed, 6 insertions, 3 deletions
diff --git a/sysdeps/unix/sysv/linux/aio_misc.h b/sysdeps/unix/sysv/linux/aio_misc.h
index 30c3cd778e..e31ca8edbe 100644
--- a/sysdeps/unix/sysv/linux/aio_misc.h
+++ b/sysdeps/unix/sysv/linux/aio_misc.h
@@ -31,7 +31,8 @@ __aio_start_notify_thread (void)
 {
   sigset_t ss;
   sigemptyset (&ss);
-  INTERNAL_SYSCALL_CALL (rt_sigprocmask, SIG_SETMASK, &ss, NULL, _NSIG / 8);
+  INTERNAL_SYSCALL_CALL (rt_sigprocmask, SIG_SETMASK, &ss, NULL,
+			 __NSIG_BYTES);
 }
 
 extern inline int
@@ -52,12 +53,14 @@ __aio_create_helper_thread (pthread_t *threadp, void *(*tf) (void *),
   sigset_t ss;
   sigset_t oss;
   sigfillset (&ss);
-  INTERNAL_SYSCALL_CALL (rt_sigprocmask, SIG_SETMASK, &ss, &oss, _NSIG / 8);
+  INTERNAL_SYSCALL_CALL (rt_sigprocmask, SIG_SETMASK, &ss, &oss,
+			 __NSIG_BYTES);
 
   int ret = pthread_create (threadp, &attr, tf, arg);
 
   /* Restore the signal mask.  */
-  INTERNAL_SYSCALL_CALL (rt_sigprocmask, SIG_SETMASK, &oss, NULL, _NSIG / 8);
+  INTERNAL_SYSCALL_CALL (rt_sigprocmask, SIG_SETMASK, &oss, NULL,
+			 __NSIG_BYTES);
 
   (void) pthread_attr_destroy (&attr);
   return ret;