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-rw-r--r--lib/libpthread/thread/thr_sigaltstack.c110
1 files changed, 0 insertions, 110 deletions
diff --git a/lib/libpthread/thread/thr_sigaltstack.c b/lib/libpthread/thread/thr_sigaltstack.c
deleted file mode 100644
index 8ebbdee..0000000
--- a/lib/libpthread/thread/thr_sigaltstack.c
+++ /dev/null
@@ -1,110 +0,0 @@
-/*-
- * Copyright (c) 2003 David Xu <davidxu@freebsd.org>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <errno.h>
-#include <signal.h>
-#include "thr_private.h"
-
-LT10_COMPAT_PRIVATE(_sigaltstack);
-LT10_COMPAT_DEFAULT(sigaltstack);
-
-__weak_reference(_sigaltstack, sigaltstack);
-
-int
-_sigaltstack(stack_t *_ss, stack_t *_oss)
-{
- struct pthread *curthread = _get_curthread();
- stack_t ss, oss;
- int oonstack, errsave, ret;
- kse_critical_t crit;
-
- if (curthread->attr.flags & PTHREAD_SCOPE_SYSTEM) {
- crit = _kse_critical_enter();
- ret = __sys_sigaltstack(_ss, _oss);
- errsave = errno;
- /* Get a copy */
- if (ret == 0 && _ss != NULL)
- curthread->sigstk = *_ss;
- _kse_critical_leave(crit);
- errno = errsave;
- return (ret);
- }
-
- if (_ss)
- ss = *_ss;
- if (_oss)
- oss = *_oss;
-
- /* Should get and set stack in atomic way */
- crit = _kse_critical_enter();
- oonstack = _thr_sigonstack(&ss);
- if (_oss != NULL) {
- oss = curthread->sigstk;
- oss.ss_flags = (curthread->sigstk.ss_flags & SS_DISABLE)
- ? SS_DISABLE : ((oonstack) ? SS_ONSTACK : 0);
- }
-
- if (_ss != NULL) {
- if (oonstack) {
- _kse_critical_leave(crit);
- errno = EPERM;
- return (-1);
- }
- if ((ss.ss_flags & ~SS_DISABLE) != 0) {
- _kse_critical_leave(crit);
- errno = EINVAL;
- return (-1);
- }
- if (!(ss.ss_flags & SS_DISABLE)) {
- if (ss.ss_size < MINSIGSTKSZ) {
- _kse_critical_leave(crit);
- errno = ENOMEM;
- return (-1);
- }
- curthread->sigstk = ss;
- } else {
- curthread->sigstk.ss_flags |= SS_DISABLE;
- }
- }
- _kse_critical_leave(crit);
- if (_oss != NULL)
- *_oss = oss;
- return (0);
-}
-
-int
-_thr_sigonstack(void *sp)
-{
- struct pthread *curthread = _get_curthread();
-
- return ((curthread->sigstk.ss_flags & SS_DISABLE) == 0 ?
- (((size_t)sp - (size_t)curthread->sigstk.ss_sp) < curthread->sigstk.ss_size)
- : 0);
-}
-
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