aboutsummaryrefslogtreecommitdiff
path: root/sysdeps/mach/hurd/sigaltstack.c
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/mach/hurd/sigaltstack.c')
-rw-r--r--sysdeps/mach/hurd/sigaltstack.c60
1 files changed, 0 insertions, 60 deletions
diff --git a/sysdeps/mach/hurd/sigaltstack.c b/sysdeps/mach/hurd/sigaltstack.c
deleted file mode 100644
index 4fba69e766..0000000000
--- a/sysdeps/mach/hurd/sigaltstack.c
+++ /dev/null
@@ -1,60 +0,0 @@
-/* Copyright (C) 1992-2017 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#include <errno.h>
-#include <hurd.h>
-#include <hurd/signal.h>
-
-/* Run signals handlers on the stack specified by SS (if not NULL).
- If OSS is not NULL, it is filled in with the old signal stack status. */
-int
-__sigaltstack (const stack_t *argss, stack_t *oss)
-{
- struct hurd_sigstate *s;
- stack_t ss, old;
-
- /* Fault before taking any locks. */
- if (argss != NULL)
- ss = *argss;
- if (oss != NULL)
- *(volatile stack_t *) oss = *oss;
-
- s = _hurd_self_sigstate ();
- __spin_lock (&s->lock);
-
- if (argss != NULL &&
- (ss.ss_flags & SS_DISABLE) && (s->sigaltstack.ss_flags & SS_ONSTACK))
- {
- /* Can't disable a stack that is in use. */
- __spin_unlock (&s->lock);
- errno = EINVAL;
- return -1;
- }
-
- old = s->sigaltstack;
-
- if (argss != NULL)
- s->sigaltstack = ss;
-
- __spin_unlock (&s->lock);
-
- if (oss != NULL)
- *oss = old;
-
- return 0;
-}
-weak_alias (__sigaltstack, sigaltstack)