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/*
* Copyright (c) 2012-2015 Dmitry V. Levin <ldv@altlinux.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.
* 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(struct_robust_list_head)
#include <linux/futex.h>
typedef struct robust_list_head struct_robust_list_head;
#include MPERS_DEFS
#include "print_fields.h"
static void
decode_robust_list(struct tcb *tcp, kernel_ulong_t addr, kernel_ulong_t len)
{
struct_robust_list_head rl;
if (len < sizeof(rl)) {
printaddr(addr);
return;
}
if (umove_or_printaddr(tcp, addr, &rl))
return;
PRINT_FIELD_PTR("{list={", rl.list, next);
PRINT_FIELD_D("}, ", rl, futex_offset);
PRINT_FIELD_PTR(", ", rl, list_op_pending);
if (len > sizeof(rl))
tprints(", /* ??? */");
tprints("}");
printaddr_comment(addr);
}
SYS_FUNC(set_robust_list)
{
decode_robust_list(tcp, tcp->u_arg[0], tcp->u_arg[1]);
tprintf(", %lu", (unsigned long) tcp->u_arg[1]);
return RVAL_DECODED;
}
SYS_FUNC(get_robust_list)
{
if (entering(tcp)) {
tprintf("%d, ", (int) tcp->u_arg[0]);
} else {
mpers_ptr_t rl_ptr;
mpers_ptr_t len = 0;
if (!umove_or_printaddr(tcp, tcp->u_arg[1], &rl_ptr)) {
tprints("[");
if (!umove(tcp, tcp->u_arg[2], &len))
decode_robust_list(tcp, rl_ptr, len);
else
printaddr(tcp->u_arg[1]);
tprints("]");
}
tprints(", ");
printnum_ulong(tcp, tcp->u_arg[2]);
}
return 0;
}
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