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/*
* Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl>
* Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
* Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
* Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl>
* Copyright (c) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
* Linux for s390 port by D.J. Barrow
* <barrow_dj@mail.yahoo.com,djbarrow@de.ibm.com>
* Copyright (c) 1999-2021 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
#include "defs.h"
#include "ptrace.h"
int
upeek(struct tcb *tcp, unsigned long off, kernel_ulong_t *res)
{
long val;
errno = 0;
val = ptrace(PTRACE_PEEKUSER, (pid_t) tcp->pid, (void *) off, 0);
if (val == -1 && errno) {
if (errno != ESRCH)
perror_func_msg("PTRACE_PEEKUSER pid:%d @0x%lx)",
tcp->pid, off);
return -1;
}
*res = (unsigned long) val;
return 0;
}
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