+/*
+ * Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl>
+ * Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
+ * Copyright (c) 1993-1996 Rick Sladkey <jrs@world.std.com>
+ * Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl>
+ * Copyright (c) 2005-2015 Dmitry V. Levin <ldv@altlinux.org>
+ * Copyright (c) 2015 Elvira Khabirova <lineprinter0@gmail.com>
+ * 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.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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 "defs.h"
+
+#include DEF_MPERS_TYPE(stack_t)
+
+#include <signal.h>
+
+#include MPERS_DEFS
+
#include "xlat/sigaltstack_flags.h"
static void
print_stack_t(struct tcb *tcp, unsigned long addr)
{
stack_t ss;
- int r;
- if (!addr) {
- tprints("NULL");
+ if (umove_or_printaddr(tcp, addr, &ss))
return;
- }
-#if SUPPORTED_PERSONALITIES > 1 && SIZEOF_LONG > 4
- if (current_wordsize != sizeof(ss.ss_sp) && current_wordsize == 4) {
- struct {
- uint32_t ss_sp;
- int32_t ss_flags;
- uint32_t ss_size;
- } ss32;
- r = umove(tcp, addr, &ss32);
- if (r >= 0) {
- memset(&ss, 0, sizeof(ss));
- ss.ss_sp = (void*)(unsigned long) ss32.ss_sp;
- ss.ss_flags = ss32.ss_flags;
- ss.ss_size = (unsigned long) ss32.ss_size;
- }
- } else
-#endif
- {
- r = umove(tcp, addr, &ss);
- }
- if (r < 0) {
- tprintf("%#lx", addr);
- } else {
- tprintf("{ss_sp=%#lx, ss_flags=", (unsigned long) ss.ss_sp);
- printflags(sigaltstack_flags, ss.ss_flags, "SS_???");
- tprintf(", ss_size=%lu}", (unsigned long) ss.ss_size);
- }
+ tprints("{ss_sp=");
+ printaddr((unsigned long) ss.ss_sp);
+ tprints(", ss_flags=");
+ printflags(sigaltstack_flags, ss.ss_flags, "SS_???");
+ tprintf(", ss_size=%lu}", (unsigned long) ss.ss_size);
}
SYS_FUNC(sigaltstack)
{
if (entering(tcp)) {
print_stack_t(tcp, tcp->u_arg[0]);
- } else {
tprints(", ");
+ } else {
print_stack_t(tcp, tcp->u_arg[1]);
}
return 0;