1 /*
2 * This file is part of ltrace.
3 * Copyright (C) 2012 Petr Machata, Red Hat Inc.
4 * Copyright (C) 2003,2008,2009 Juan Cespedes
5 * Copyright (C) 2006 Ian Wienand
6 *
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.
11 *
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.
16 *
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
20 * 02110-1301 USA
21 */
22
23 #include <stdio.h>
24 #include <stdarg.h>
25
26 #include "common.h"
27 #include "backend.h"
28
29 void
debug_(int level,const char * file,int line,const char * fmt,...)30 debug_(int level, const char *file, int line, const char *fmt, ...) {
31 char buf[1024];
32 va_list args;
33
34 if (!(options.debug & level)) {
35 return;
36 }
37 va_start(args, fmt);
38 vsnprintf(buf, 1024, fmt, args);
39 va_end(args);
40
41 output_line(NULL, "DEBUG: %s:%d: %s", file, line, buf);
42 fflush(options.output);
43 }
44
45 static int
xwritedump(long * ptr,arch_addr_t addr,size_t count)46 xwritedump(long *ptr, arch_addr_t addr, size_t count)
47 {
48 size_t i;
49 for (i = 0; i < count; ++i) {
50 if (fprintf(stderr, "%p->%0*lx\n",
51 addr, 2 * (int)sizeof(long), ptr[i]) < 0)
52 return -1;
53 addr += sizeof(long);
54 }
55
56 return 0;
57 }
58
59 int
xinfdump(struct process * proc,arch_addr_t addr,size_t length)60 xinfdump(struct process *proc, arch_addr_t addr, size_t length)
61 {
62 unsigned char buf[length];
63 size_t got = umovebytes(proc, addr, buf, length);
64 if (got == (size_t)-1)
65 return -1;
66 return xwritedump((long *)buf, addr, got / sizeof(long));
67 }
68