2 * Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl>
3 * Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
4 * Copyright (c) 1993-1996 Rick Sladkey <jrs@world.std.com>
5 * Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl>
6 * Copyright (c) 2007 Roland McGrath <roland@redhat.com>
7 * Copyright (c) 2011-2012 Denys Vlasenko <vda.linux@googlemail.com>
8 * Copyright (c) 2010-2015 Dmitry V. Levin <ldv@altlinux.org>
9 * Copyright (c) 2014-2017 The strace developers.
10 * All rights reserved.
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. The name of the author may not be used to endorse or promote products
21 * derived from this software without specific prior written permission.
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
25 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
26 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
27 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
28 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
32 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
38 printargv(struct tcb *const tcp, kernel_ulong_t addr)
40 if (!addr || !verbose(tcp)) {
45 const char *const start_sep = "[";
46 const char *sep = start_sep;
47 const unsigned int wordsize = current_wordsize;
50 for (n = 0; addr; sep = ", ", addr += wordsize, ++n) {
54 char data[sizeof(kernel_ulong_t)];
57 if (umoven(tcp, addr, wordsize, cp.data)) {
64 if (!(wordsize < sizeof(cp.p64) ? cp.p32 : cp.p64)) {
69 if (abbrev(tcp) && n >= max_strlen) {
70 tprintf("%s...", sep);
74 printstr(tcp, wordsize < sizeof(cp.p64) ? cp.p32 : cp.p64);
80 printargc(struct tcb *const tcp, kernel_ulong_t addr)
84 if (!addr || !verbose(tcp))
87 bool unterminated = false;
88 unsigned int count = 0;
91 for (; addr; addr += current_wordsize, ++count) {
92 if (umoven(tcp, addr, current_wordsize, &cp)) {
102 tprintf_comment("%u var%s%s",
103 count, count == 1 ? "" : "s",
104 unterminated ? ", unterminated" : "");
108 decode_execve(struct tcb *tcp, const unsigned int index)
110 printpath(tcp, tcp->u_arg[index + 0]);
113 printargv(tcp, tcp->u_arg[index + 1]);
116 (abbrev(tcp) ? printargc : printargv) (tcp, tcp->u_arg[index + 2]);
121 decode_execve(tcp, 0);
128 print_dirfd(tcp, tcp->u_arg[0]);
129 decode_execve(tcp, 1);
131 printflags(at_flags, tcp->u_arg[4], "AT_???");
136 #if defined(SPARC) || defined(SPARC64)
139 printpath(tcp, tcp->u_arg[0]);
141 printargv(tcp, tcp->u_arg[1]);
145 #endif /* SPARC || SPARC64 */