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authorUlrich Drepper <drepper@redhat.com>2002-09-18 08:27:02 +0000
committerUlrich Drepper <drepper@redhat.com>2002-09-18 08:27:02 +0000
commitace55c73dd0c94e3cd77f53a046b6128a14a45e1 (patch)
tree910f71d06e0e63519bc4fa23593cc32a8bb350e5
parentb7cb624be9f0a59198e1a5f44cdee0a215440d27 (diff)
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Update.
* 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.
-rw-r--r--ChangeLog5
-rw-r--r--sysdeps/unix/sysv/linux/i386/sigaction.c19
-rw-r--r--sysdeps/unix/sysv/linux/sigaction.c19
3 files changed, 43 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog
index 289c35d..73577f2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,10 @@
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.
diff --git a/sysdeps/unix/sysv/linux/i386/sigaction.c b/sysdeps/unix/sysv/linux/i386/sigaction.c
index 57634c1..9474721 100644
--- a/sysdeps/unix/sysv/linux/i386/sigaction.c
+++ b/sysdeps/unix/sysv/linux/i386/sigaction.c
@@ -157,9 +157,28 @@ __libc_sigaction (int sig, const struct sigaction *act, struct sigaction *oact)
#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
diff --git a/sysdeps/unix/sysv/linux/sigaction.c b/sysdeps/unix/sysv/linux/sigaction.c
index c95e3d1..d8f1d26 100644
--- a/sysdeps/unix/sysv/linux/sigaction.c
+++ b/sysdeps/unix/sysv/linux/sigaction.c
@@ -133,6 +133,25 @@ __libc_sigaction (sig, act, oact)
#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