2002-09-18 Ulrich Drepper <drepper@redhat.com>
+ * sysdeps/unix/sysv/linux/sigaction.c: If SIGCANCEL is defined
+ define sigaction and __sigaction as wrappers around
+ __libc_sigaction which rejects changing SIGCANCEL.
+ * sysdeps/unix/sysv/linux/i386/sigaction.c: Likewise.
+
* sysdeps/unix/sysv/linux/i386/clone.S: Add support for SETTLS and
SETTID/CLEARTID.
#endif
}
+#ifndef SIGCANCEL
weak_alias (__libc_sigaction, __sigaction)
libc_hidden_weak (__sigaction)
weak_alias (__libc_sigaction, sigaction)
+#else
+int
+__sigaction (sig, act, oact)
+ int sig;
+ const struct sigaction *act;
+ struct sigaction *oact;
+{
+ if (sig == SIGCANCEL)
+ {
+ __set_errno (EINVAL);
+ return -1;
+ }
+
+ return __libc_sigaction (sig, act, oact);
+}
+libc_hidden_weak (__sigaction)
+weak_alias (__sigaction, sigaction)
+#endif
/* NOTE: Please think twice before making any changes to the bits of
code below. GDB needs some intimate knowledge about it to
#endif
}
+#ifndef SIGCANCEL
weak_alias (__libc_sigaction, __sigaction)
libc_hidden_weak (__sigaction)
weak_alias (__libc_sigaction, sigaction)
+#else
+int
+__sigaction (sig, act, oact)
+ int sig;
+ const struct sigaction *act;
+ struct sigaction *oact;
+{
+ if (sig == SIGCANCEL)
+ {
+ __set_errno (EINVAL);
+ return -1;
+ }
+
+ return __libc_sigaction (sig, act, oact);
+}
+libc_hidden_weak (__sigaction)
+weak_alias (__sigaction, sigaction)
+#endif