2 * This file is part of ltrace.
3 * Copyright (C) 1998,2001,2004,2008,2009 Juan Cespedes
4 * Copyright (C) 2009 Juan Cespedes
5 * Copyright (C) 2006 Ian Wienand
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation; either version 2 of the
10 * License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
25 #include <sys/types.h>
28 #include <sys/ptrace.h>
29 #include <asm/ptrace.h>
34 #if (!defined(PTRACE_PEEKUSER) && defined(PTRACE_PEEKUSR))
35 # define PTRACE_PEEKUSER PTRACE_PEEKUSR
38 #if (!defined(PTRACE_POKEUSER) && defined(PTRACE_POKEUSR))
39 # define PTRACE_POKEUSER PTRACE_POKEUSR
43 get_arch_dep(Process *proc) {
46 /* Returns 1 if syscall, 2 if sysret, 0 otherwise.
49 syscall_p(Process *proc, int status, int *sysnum) {
52 if (WIFSTOPPED(status)
53 && WSTOPSIG(status) == (SIGTRAP | proc->tracesysgood)) {
54 *sysnum = ptrace(PTRACE_PEEKUSER, proc->pid, 4 * PT_ORIG_D0, 0);
58 depth = proc->callstack_depth;
60 proc->callstack[depth - 1].is_syscall &&
61 proc->callstack[depth - 1].c_un.syscall == *sysnum) {