strace/upeek.c

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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>
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* Copyright (c) 1999-2017 The strace developers.
* 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 "ptrace.h"
int
upeek(int pid, unsigned long off, kernel_ulong_t *res)
{
long val;
errno = 0;
val = ptrace(PTRACE_PEEKUSER, (pid_t) pid, (void *) off, 0);
if (val == -1 && errno) {
if (errno != ESRCH) {
perror_msg("upeek: PTRACE_PEEKUSER pid:%d @0x%lx)", pid, off);
}
return -1;
}
upeek, upoke: change argument types from long to unsigned long * defs.h (upeek, upoke): Change offset argument type from long to unsigned long. Change res argument type from long to kernel_ureg_t. * upeek.c (upeek): Likewise. * upoke.c (upoke.c): Likewise. * syscall.c (print_pc) [ARCH_PC_PEEK_ADDR]: Change pc type from long to kernel_ureg_t. * linux/aarch64/arch_regs.c (arm_sp_ptr): Remove redundant cast. * linux/metag/get_syscall_args.c (get_syscall_args): Likewise. * linux/sh/get_syscall_result.c (get_syscall_result_regs): Likewise. * linux/sh64/get_syscall_result.c (get_syscall_result_regs): Likewise. * linux/powerpc/getregs_old.c (getregs_old): Remove redundant casts. * linux/alpha/arch_getrval2.c (getrval2): Change r20 type from long to unsigned long. * linux/alpha/arch_regs.c (alpha_r0, alpha_a3): Change type from long to unsigned long. * linux/bfin/arch_regs.c (bfin_r0): Likewise. * linux/crisv10/arch_regs.c (cris_r10): Likewise. * linux/hppa/arch_regs.c (hppa_r28): Likewise. * linux/ia64/arch_regs.c (IA64_PSR_IS): Likewise. * linux/microblaze/arch_regs.c (microblaze_r3): Likewise. * linux/sh/arch_regs.c (sh_r0): Likewise. * linux/sh64/arch_regs.c (sh64_r9): Likewise. * linux/xtensa/arch_regs.c (xtensa_a2): Likewise. * linux/alpha/arch_sigreturn.c (arch_sigreturn): Change addr type from long to unsigned long. * linux/microblaze/arch_sigreturn.c (arch_sigreturn): Likewise. * linux/alpha/get_scno.c (arch_get_scno): Update for the change of signedness. * linux/arc/get_syscall_args.c (get_syscall_args): Change arc_args type from pointer to long to pointer to unsigned long. * linux/arm/arch_regs.c (arm_sp_ptr): Change type from pointer to long to pointer to unsigned long. * linux/arm/arch_regs.h (arm_sp_ptr): Likewise. * linux/i386/arch_regs.c (i386_esp_ptr): Likewise. * linux/i386/arch_regs.h (i386_esp_ptr): Likewise. * linux/m68k/arch_regs.c (m68k_usp_ptr): Likewise. * linux/m68k/arch_regs.h (m68k_usp_ptr): Likewise. * linux/ia64/get_syscall_args.c (get_syscall_args): Use umove instead of umoven. * linux/sh/arch_getrval2.c (getrval2): Change val type from long to unsigned long.
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*res = (unsigned long) val;
return 0;
}