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Wichert Akkerman76baf7c1999-02-19 00:21:36 +00001/*
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, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 *
29 * $Id$
30 */
31
Roland McGrath795edb12005-02-02 04:44:57 +000032#ifdef HAVE_CONFIG_H
33#include "config.h"
34#endif
35
Roland McGrath542c2c62008-05-20 01:11:56 +000036#ifdef MIPS
37#include <sgidefs.h>
38#endif
39
Wichert Akkermanb859bea1999-04-18 22:50:50 +000040#ifdef linux
41#include <features.h>
42#endif
43
Roland McGrathe6d3a292003-01-14 09:46:18 +000044#ifdef _LARGEFILE64_SOURCE
45/* This is the macro everything checks before using foo64 names. */
46# ifndef _LFS64_LARGEFILE
47# define _LFS64_LARGEFILE 1
48# endif
49#endif
50
Denys Vlasenkod9560c12011-08-19 17:41:28 +020051/* Configuration section */
Wichert Akkerman76baf7c1999-02-19 00:21:36 +000052#ifndef MAX_QUALS
Roland McGrath63d01462002-12-30 00:25:36 +000053#if defined(LINUX) && defined(MIPS)
Roland McGrath542c2c62008-05-20 01:11:56 +000054#define MAX_QUALS 7000 /* maximum number of syscalls, signals, etc. */
Wichert Akkermanfd89ced2000-04-13 17:06:09 +000055#else
Wichert Akkerman8b1b40c2000-02-03 21:58:30 +000056#define MAX_QUALS 2048 /* maximum number of syscalls, signals, etc. */
Wichert Akkerman76baf7c1999-02-19 00:21:36 +000057#endif
Wichert Akkerman5ae21ea2000-05-01 01:53:59 +000058#endif
Wichert Akkerman76baf7c1999-02-19 00:21:36 +000059#ifndef DEFAULT_STRLEN
Denys Vlasenko041b3ee2011-08-18 12:48:56 +020060/* default maximum # of bytes printed in `printstr', change with -s switch */
61#define DEFAULT_STRLEN 32
Wichert Akkerman76baf7c1999-02-19 00:21:36 +000062#endif
63#ifndef DEFAULT_ACOLUMN
64#define DEFAULT_ACOLUMN 40 /* default alignment column for results */
65#endif
Denys Vlasenkod9560c12011-08-19 17:41:28 +020066
67/* Maximum number of args to a syscall.
68 *
69 * Make sure that all entries in all syscallent.h files
70 * have nargs <= MAX_ARGS!
Denys Vlasenko44142a72011-08-23 18:04:25 +020071 * linux/<ARCH>/syscallent.h: all have nargs <= 6.
Denys Vlasenkod9560c12011-08-19 17:41:28 +020072 * freebsd/i386/syscallent.h: one syscall with nargs = 8
73 * (sys_sendfile, looks legitimate)
74 * and one with nargs = 7 (sys_mmap, maybe it should have 6?).
75 * sunos4/syscallent.h: all are <= 6.
Denys Vlasenko44142a72011-08-23 18:04:25 +020076 * svr4/syscallent.h: all are MA (MAX_ARGS), it's unclear what the real max is.
Denys Vlasenkod9560c12011-08-19 17:41:28 +020077 */
Wichert Akkerman76baf7c1999-02-19 00:21:36 +000078#ifndef MAX_ARGS
Denys Vlasenko44142a72011-08-23 18:04:25 +020079# if defined LINUX
80# define MAX_ARGS 6
81# elif defined HPPA
Denys Vlasenkod9560c12011-08-19 17:41:28 +020082# define MAX_ARGS 6
83# elif defined X86_64 || defined I386
84# ifdef FREEBSD
85# define MAX_ARGS 8
86# else
87# define MAX_ARGS 6
88# endif
Dmitry V. Levin67874d82009-10-05 23:32:39 +000089# else
Denys Vlasenko041b3ee2011-08-18 12:48:56 +020090/* Way too big. Switch your arch to saner size after you tested that it works */
Denys Vlasenkod9560c12011-08-19 17:41:28 +020091# define MAX_ARGS 32
Dmitry V. Levin67874d82009-10-05 23:32:39 +000092# endif
Wichert Akkerman76baf7c1999-02-19 00:21:36 +000093#endif
Denys Vlasenkod9560c12011-08-19 17:41:28 +020094
Wichert Akkerman76baf7c1999-02-19 00:21:36 +000095#ifndef DEFAULT_SORTBY
96#define DEFAULT_SORTBY "time" /* default sorting method for call profiling */
97#endif
98
99#include <sys/types.h>
100#include <unistd.h>
101#include <stdlib.h>
102#include <stdio.h>
103#include <ctype.h>
104#include <string.h>
Wichert Akkerman8c7122c2001-02-16 19:59:55 +0000105#include <time.h>
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000106#include <sys/time.h>
107#include <errno.h>
108
Roland McGrath639658b2008-08-01 01:06:31 +0000109#ifdef HAVE_STDBOOL_H
110#include <stdbool.h>
111#endif
112
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000113#ifdef STDC_HEADERS
114#include <stddef.h>
115#endif /* STDC_HEADERS */
116
John Hughes58265892001-10-18 15:13:53 +0000117#ifdef HAVE_SIGINFO_T
118#include <signal.h>
119#endif
120
Wichert Akkermanf5eeabb1999-11-18 17:09:47 +0000121#if defined(LINUX)
Roland McGrath6d1a65c2004-07-12 07:44:08 +0000122# if defined(SPARC) || defined(SPARC64)
Wichert Akkermanf5eeabb1999-11-18 17:09:47 +0000123# define LINUXSPARC
124# endif
Michal Ludvig0e035502002-09-23 15:41:01 +0000125# if defined(X86_64)
126# define LINUX_X86_64
127# endif
Roland McGrath542c2c62008-05-20 01:11:56 +0000128# if defined(MIPS) && _MIPS_SIM == _MIPS_SIM_ABI32
129# define LINUX_MIPSO32
130# endif
131# if defined(MIPS) && _MIPS_SIM == _MIPS_SIM_NABI32
132# define LINUX_MIPSN32
133# define LINUX_MIPS64
134# endif
135# if defined(MIPS) && _MIPS_SIM == _MIPS_SIM_ABI64
136# define LINUX_MIPSN64
137# define LINUX_MIPS64
138# endif
Denys Vlasenko8ba1cd72008-12-30 17:50:46 +0000139# if defined(ARM)
140# define LINUX_ARM
141# endif
Denys Vlasenko5ae2b7c2009-02-27 20:32:52 +0000142# if defined(AVR32)
143# define LINUX_AVR32
144# endif
Roland McGrathee9d4352002-12-18 04:16:10 +0000145#endif
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000146
Wichert Akkermanbf79f2e2000-09-01 21:03:06 +0000147#if defined(SVR4) || defined(FREEBSD)
148#define USE_PROCFS
149#else
150#undef USE_PROCFS
151#endif
152
153#ifdef FREEBSD
154#ifndef I386
155#error "FreeBSD support is only for i386 arch right now."
156#endif
157#include <machine/psl.h>
158#include <machine/reg.h>
159#include <sys/syscall.h>
160#endif
161
162#ifdef USE_PROCFS
Denys Vlasenko77770bb2011-08-26 19:25:09 +0200163# include <sys/procfs.h>
164# ifdef HAVE_MP_PROCFS
165# include <sys/uio.h>
166# endif
167# ifdef FREEBSD
168# include <sys/pioctl.h>
169# endif
Wichert Akkermanbf79f2e2000-09-01 21:03:06 +0000170#else /* !USE_PROCFS */
Denys Vlasenko77770bb2011-08-26 19:25:09 +0200171# if (defined(LINUXSPARC) || defined(LINUX_X86_64) || defined(LINUX_ARM) || defined(LINUX_AVR32)) && defined(__GLIBC__)
172# include <sys/ptrace.h>
173# else
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000174/* Work around awkward prototype in ptrace.h. */
Denys Vlasenko77770bb2011-08-26 19:25:09 +0200175# define ptrace xptrace
176# include <sys/ptrace.h>
177# undef ptrace
178# ifdef POWERPC
179# define __KERNEL__
180# include <asm/ptrace.h>
181# undef __KERNEL__
182# endif
183# ifdef LINUX
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000184extern long ptrace(int, int, char *, long);
Denys Vlasenko77770bb2011-08-26 19:25:09 +0200185# else
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000186extern int ptrace(int, int, char *, int, ...);
Denys Vlasenko77770bb2011-08-26 19:25:09 +0200187# endif
188# endif
189#endif /* !USE_PROCFS */
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000190
191#ifdef LINUX
Wichert Akkermanb859bea1999-04-18 22:50:50 +0000192#if !defined(__GLIBC__)
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000193#define PTRACE_PEEKUSER PTRACE_PEEKUSR
194#define PTRACE_POKEUSER PTRACE_POKEUSR
195#endif
Denys Vlasenkoeb0e3e82011-08-30 18:53:49 +0200196#if defined(X86_64) || defined(I386)
197/* For struct pt_regs. x86 strace uses PTRACE_GETREGS.
198 * PTRACE_GETREGS returns registers in the layout of this struct.
199 */
200# include <asm/ptrace.h>
201#endif
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000202#ifdef ALPHA
Wichert Akkermanf90da011999-10-31 21:15:38 +0000203# define REG_R0 0
204# define REG_A0 16
205# define REG_A3 19
206# define REG_FP 30
207# define REG_PC 64
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000208#endif /* ALPHA */
Wichert Akkermanf90da011999-10-31 21:15:38 +0000209#ifdef MIPS
210# define REG_V0 2
211# define REG_A0 4
212# define REG_A3 7
213# define REG_SP 29
214# define REG_EPC 64
215#endif /* MIPS */
Wichert Akkermanc1652e22001-03-27 12:17:16 +0000216#ifdef HPPA
217# define PT_GR20 (20*4)
218# define PT_GR26 (26*4)
219# define PT_GR28 (28*4)
220# define PT_IAOQ0 (106*4)
221# define PT_IAOQ1 (107*4)
222#endif /* HPPA */
Roland McGrathf5a47772003-06-26 22:40:42 +0000223#ifdef SH64
224 /* SH64 Linux - this code assumes the following kernel API for system calls:
Roland McGrathe1e584b2003-06-02 19:18:58 +0000225 PC Offset 0
226 System Call Offset 16 (actually, (syscall no.) | (0x1n << 16),
227 where n = no. of parameters.
228 Other regs Offset 24+
229
230 On entry: R2-7 = parameters 1-6 (as many as necessary)
231 On return: R9 = result. */
232
233 /* Offset for peeks of registers */
234# define REG_OFFSET (24)
235# define REG_GENERAL(x) (8*(x)+REG_OFFSET)
236# define REG_PC (0*8)
237# define REG_SYSCALL (2*8)
Roland McGrathf5a47772003-06-26 22:40:42 +0000238#endif /* SH64 */
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000239#endif /* LINUX */
240
241#define SUPPORTED_PERSONALITIES 1
242#define DEFAULT_PERSONALITY 0
243
244#ifdef LINUXSPARC
Mike Frysinger8566c502009-10-12 11:05:14 -0400245/* Indexes into the pt_regs.u_reg[] array -- UREG_XX from kernel are all off
246 * by 1 and use Ix instead of Ox. These work for both 32 and 64 bit Linux. */
247#define U_REG_G1 0
248#define U_REG_O0 7
249#define U_REG_O1 8
Roland McGrath4b2dcca2006-01-12 10:18:53 +0000250#define PERSONALITY0_WORDSIZE 4
251#define PERSONALITY1_WORDSIZE 4
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000252#undef SUPPORTED_PERSONALITIES
Roland McGrath6d1a65c2004-07-12 07:44:08 +0000253#if defined(SPARC64)
Roland McGrath5aa04342007-09-12 01:26:26 +0000254#include <asm/psrcompat.h>
Roland McGrath6d1a65c2004-07-12 07:44:08 +0000255#define SUPPORTED_PERSONALITIES 3
Roland McGrath4b2dcca2006-01-12 10:18:53 +0000256#define PERSONALITY2_WORDSIZE 8
Roland McGrath6d1a65c2004-07-12 07:44:08 +0000257#else
Roland McGrath5aa04342007-09-12 01:26:26 +0000258#include <asm/psr.h>
Wichert Akkermanb859bea1999-04-18 22:50:50 +0000259#define SUPPORTED_PERSONALITIES 2
Roland McGrath6d1a65c2004-07-12 07:44:08 +0000260#endif /* SPARC64 */
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000261#endif /* LINUXSPARC */
262
Michal Ludvig0e035502002-09-23 15:41:01 +0000263#ifdef X86_64
264#undef SUPPORTED_PERSONALITIES
265#define SUPPORTED_PERSONALITIES 2
Roland McGrath4b2dcca2006-01-12 10:18:53 +0000266#define PERSONALITY0_WORDSIZE 8
267#define PERSONALITY1_WORDSIZE 4
Roland McGrathee9d4352002-12-18 04:16:10 +0000268#endif
269
Roland McGrath56703312008-05-20 01:35:55 +0000270#ifdef ARM
271#undef SUPPORTED_PERSONALITIES
272#define SUPPORTED_PERSONALITIES 2
273#define PERSONALITY0_WORDSIZE 4
274#define PERSONALITY1_WORDSIZE 4
275#endif
276
Andreas Schwabd69fa492010-07-12 21:39:57 +0200277#ifdef POWERPC64
278#undef SUPPORTED_PERSONALITIES
279#define SUPPORTED_PERSONALITIES 2
280#define PERSONALITY0_WORDSIZE 8
281#define PERSONALITY1_WORDSIZE 4
282#endif
283
Wichert Akkerman9ce1a631999-08-29 23:15:07 +0000284#ifdef SVR4
Wichert Akkermanea78f0f1999-11-29 15:34:02 +0000285#ifdef HAVE_MP_PROCFS
Denys Vlasenkob63256e2011-06-07 12:13:24 +0200286extern int mp_ioctl(int f, int c, void *a, int s);
287#define IOCTL(f,c,a) mp_ioctl(f, c, a, sizeof *a)
Wichert Akkerman9ce1a631999-08-29 23:15:07 +0000288#define IOCTL_STATUS(t) \
Denys Vlasenkob63256e2011-06-07 12:13:24 +0200289 pread(t->pfd_stat, &t->status, sizeof t->status, 0)
Denys Vlasenko9015cd92011-06-24 23:07:24 +0200290#define IOCTL_WSTOP(t) \
291 (IOCTL(t->pfd, PCWSTOP, (char *)NULL) < 0 ? -1 : IOCTL_STATUS(t))
Wichert Akkerman9ce1a631999-08-29 23:15:07 +0000292#define PR_WHY pr_lwp.pr_why
293#define PR_WHAT pr_lwp.pr_what
294#define PR_REG pr_lwp.pr_context.uc_mcontext.gregs
295#define PR_FLAGS pr_lwp.pr_flags
John Hughes25299712001-03-06 10:10:06 +0000296#define PR_SYSCALL pr_lwp.pr_syscall
John Hughes58265892001-10-18 15:13:53 +0000297#define PR_INFO pr_lwp.pr_info
Wichert Akkerman9ce1a631999-08-29 23:15:07 +0000298#define PIOCSTIP PCSTOP
299#define PIOCSET PCSET
300#define PIOCRESET PCRESET
301#define PIOCSTRACE PCSTRACE
302#define PIOCSFAULT PCSFAULT
303#define PIOCWSTOP PCWSTOP
304#define PIOCSTOP PCSTOP
305#define PIOCSENTRY PCSENTRY
306#define PIOCSEXIT PCSEXIT
307#define PIOCRUN PCRUN
308#else
309#define IOCTL ioctl
Denys Vlasenkob63256e2011-06-07 12:13:24 +0200310#define IOCTL_STATUS(t) ioctl(t->pfd, PIOCSTATUS, &t->status)
311#define IOCTL_WSTOP(t) ioctl(t->pfd, PIOCWSTOP, &t->status)
Wichert Akkerman9ce1a631999-08-29 23:15:07 +0000312#define PR_WHY pr_why
313#define PR_WHAT pr_what
314#define PR_REG pr_reg
315#define PR_FLAGS pr_flags
John Hughes25299712001-03-06 10:10:06 +0000316#define PR_SYSCALL pr_syscall
John Hughes58265892001-10-18 15:13:53 +0000317#define PR_INFO pr_info
Wichert Akkerman9ce1a631999-08-29 23:15:07 +0000318#endif
319#endif
Wichert Akkermanbf79f2e2000-09-01 21:03:06 +0000320#ifdef FREEBSD
321#define IOCTL ioctl
Denys Vlasenkob63256e2011-06-07 12:13:24 +0200322#define IOCTL_STATUS(t) ioctl(t->pfd, PIOCSTATUS, &t->status)
323#define IOCTL_WSTOP(t) ioctl(t->pfd, PIOCWAIT, &t->status)
Wichert Akkermanbf79f2e2000-09-01 21:03:06 +0000324#define PIOCRUN PIOCCONT
325#define PIOCWSTOP PIOCWAIT
326#define PR_WHY why
327#define PR_WHAT val
Wichert Akkerman2e4ffe52000-09-03 23:57:48 +0000328#define PR_FLAGS state
Wichert Akkermanbf79f2e2000-09-01 21:03:06 +0000329/* from /usr/src/sys/miscfs/procfs/procfs_vnops.c,
330 status.state = 0 for running, 1 for stopped */
Wichert Akkerman2e4ffe52000-09-03 23:57:48 +0000331#define PR_ASLEEP 1
Wichert Akkermanbf79f2e2000-09-01 21:03:06 +0000332#define PR_SYSENTRY S_SCE
333#define PR_SYSEXIT S_SCX
334#define PR_SIGNALLED S_SIG
335#define PR_FAULTED S_CORE
336#endif
Wichert Akkerman9ce1a631999-08-29 23:15:07 +0000337
Wang Chaob13c0de2010-11-12 17:25:19 +0800338#ifdef LINUX
Dmitry V. Levin03aefda2011-03-15 17:19:09 +0000339# if !HAVE_DECL_PTRACE_SETOPTIONS
Wang Chaob13c0de2010-11-12 17:25:19 +0800340# define PTRACE_SETOPTIONS 0x4200
341# endif
Dmitry V. Levin03aefda2011-03-15 17:19:09 +0000342# if !HAVE_DECL_PTRACE_GETEVENTMSG
Dmitry V. Levin696381e2010-12-14 00:02:35 +0000343# define PTRACE_GETEVENTMSG 0x4201
344# endif
Dmitry V. Levin03aefda2011-03-15 17:19:09 +0000345# if !HAVE_DECL_PTRACE_GETSIGINFO
346# define PTRACE_GETSIGINFO 0x4202
347# endif
Dmitry V. Levin1b0df402011-07-19 22:13:11 +0000348
349# if !HAVE_DECL_PTRACE_O_TRACESYSGOOD
350# define PTRACE_O_TRACESYSGOOD 0x00000001
351# endif
Dmitry V. Levin03aefda2011-03-15 17:19:09 +0000352# if !HAVE_DECL_PTRACE_O_TRACEFORK
Wang Chaob13c0de2010-11-12 17:25:19 +0800353# define PTRACE_O_TRACEFORK 0x00000002
354# endif
Dmitry V. Levin03aefda2011-03-15 17:19:09 +0000355# if !HAVE_DECL_PTRACE_O_TRACEVFORK
Wang Chaob13c0de2010-11-12 17:25:19 +0800356# define PTRACE_O_TRACEVFORK 0x00000004
357# endif
Dmitry V. Levin03aefda2011-03-15 17:19:09 +0000358# if !HAVE_DECL_PTRACE_O_TRACECLONE
Wang Chaob13c0de2010-11-12 17:25:19 +0800359# define PTRACE_O_TRACECLONE 0x00000008
360# endif
Dmitry V. Levin1b0df402011-07-19 22:13:11 +0000361# if !HAVE_DECL_PTRACE_O_TRACEEXEC
362# define PTRACE_O_TRACEEXEC 0x00000010
363# endif
364# if !HAVE_DECL_PTRACE_O_TRACEEXIT
365# define PTRACE_O_TRACEEXIT 0x00000040
366# endif
Wang Chaob13c0de2010-11-12 17:25:19 +0800367
Dmitry V. Levin03aefda2011-03-15 17:19:09 +0000368# if !HAVE_DECL_PTRACE_EVENT_FORK
Wang Chaob13c0de2010-11-12 17:25:19 +0800369# define PTRACE_EVENT_FORK 1
370# endif
Dmitry V. Levin03aefda2011-03-15 17:19:09 +0000371# if !HAVE_DECL_PTRACE_EVENT_VFORK
Wang Chaob13c0de2010-11-12 17:25:19 +0800372# define PTRACE_EVENT_VFORK 2
373# endif
Dmitry V. Levin03aefda2011-03-15 17:19:09 +0000374# if !HAVE_DECL_PTRACE_EVENT_CLONE
Wang Chaob13c0de2010-11-12 17:25:19 +0800375# define PTRACE_EVENT_CLONE 3
376# endif
Dmitry V. Levin1b0df402011-07-19 22:13:11 +0000377# if !HAVE_DECL_PTRACE_EVENT_EXEC
378# define PTRACE_EVENT_EXEC 4
379# endif
380# if !HAVE_DECL_PTRACE_EVENT_VFORK_DONE
381# define PTRACE_EVENT_VFORK_DONE 5
382# endif
383# if !HAVE_DECL_PTRACE_EVENT_EXIT
384# define PTRACE_EVENT_EXIT 6
385# endif
Wang Chaob13c0de2010-11-12 17:25:19 +0800386#endif /* LINUX */
387
Denys Vlasenko75422762011-05-27 14:36:01 +0200388#if !defined __GNUC__
389# define __attribute__(x) /*nothing*/
390#endif
391
Dmitry V. Levinfcda7a52011-06-13 21:58:43 +0000392#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
393
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000394/* Trace Control Block */
395struct tcb {
Denys Vlasenkod9ec1412011-08-20 01:39:05 +0200396 int flags; /* See below for TCB_ values */
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000397 int pid; /* Process Id of this entry */
Denys Vlasenko8dc0c8c2011-08-20 13:44:56 +0200398 int u_nargs; /* System call argument count */
Denys Vlasenko92d443c2011-08-25 00:25:08 +0200399 int u_error; /* Error code */
400 long scno; /* System call number */
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000401 long u_arg[MAX_ARGS]; /* System call arguments */
Roland McGrath542c2c62008-05-20 01:11:56 +0000402#if defined (LINUX_MIPSN32)
403 long long ext_arg[MAX_ARGS]; /* System call arguments */
404#endif
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000405 long u_rval; /* (first) return value */
Wichert Akkerman16a03d22000-08-10 02:14:04 +0000406#ifdef HAVE_LONG_LONG
407 long long u_lrval; /* long long return value */
408#endif
Denys Vlasenko92d443c2011-08-25 00:25:08 +0200409 int ptrace_errno;
Andreas Schwabccdff482009-10-27 16:27:13 +0100410 int curcol; /* Output column for this process */
Denys Vlasenko92d443c2011-08-25 00:25:08 +0200411 FILE *outf; /* Output file for this process */
Wichert Akkerman43a74822000-06-27 17:33:32 +0000412 const char *auxstr; /* Auxiliary info from syscall (see RVAL_STR) */
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000413 struct timeval stime; /* System time usage as of last process wait */
414 struct timeval dtime; /* Delta for system time usage */
415 struct timeval etime; /* Syscall entry time */
416 /* Support for tracing forked processes */
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000417 long baddr; /* `Breakpoint' address */
418 long inst[2]; /* Instructions on above */
Denys Vlasenko8dc0c8c2011-08-20 13:44:56 +0200419#ifdef USE_PROCFS
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000420 int pfd; /* proc file descriptor */
Denys Vlasenko8dc0c8c2011-08-20 13:44:56 +0200421#endif
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000422#ifdef SVR4
Denys Vlasenko8dc0c8c2011-08-20 13:44:56 +0200423# ifdef HAVE_MP_PROCFS
Wichert Akkerman9ce1a631999-08-29 23:15:07 +0000424 int pfd_stat;
425 int pfd_as;
426 pstatus_t status;
Denys Vlasenko8dc0c8c2011-08-20 13:44:56 +0200427# else
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000428 prstatus_t status; /* procfs status structure */
Denys Vlasenko8dc0c8c2011-08-20 13:44:56 +0200429# endif
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000430#endif
Wichert Akkermanbf79f2e2000-09-01 21:03:06 +0000431#ifdef FREEBSD
432 struct procfs_status status;
433 int pfd_reg;
434 int pfd_status;
435#endif
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000436};
437
438/* TCB flags */
Denys Vlasenkof88837a2011-09-05 14:05:46 +0200439#define TCB_INUSE 00001 /* This table entry is in use */
440/* We have attached to this process, but did not see it stopping yet.
441 * (If this bit is not set, we either didn't attach yet,
442 * or we did attach to it, already saw it stopping at least once,
443 * did some init work on it and cleared this bit. TODO: maybe it makes sense
444 * to split these two states?)
445 */
446#define TCB_STARTUP 00002
447#define TCB_IGNORE_ONE_SIGSTOP 00004 /* Next SIGSTOP is to be ignored */
Denys Vlasenkob88f9612011-08-21 18:03:23 +0200448/*
449 * Are we in system call entry or in syscall exit?
450 *
451 * This bit is set after all syscall entry processing is done.
452 * Therefore, this bit will be set when next ptrace stop occurs,
453 * which should be syscall exit stop. Other stops which are possible
454 * directly after syscall entry (death, ptrace event stop)
455 * are simpler and handled without calling trace_syscall(), therefore
456 * the places where TCB_INSYSCALL can be set but we aren't in syscall stop
457 * are limited to trace(), this condition is never observed in trace_syscall()
458 * and below.
459 * The bit is cleared after all syscall exit processing is done.
460 * User-generated SIGTRAPs and post-execve SIGTRAP make it necessary
461 * to be very careful and NOT set TCB_INSYSCALL bit when they are encountered.
462 * TCB_WAITEXECVE bit is used for this purpose (see below).
463 *
464 * Use entering(tcp) / exiting(tcp) to check this bit to make code more readable.
465 */
Denys Vlasenkof88837a2011-09-05 14:05:46 +0200466#define TCB_INSYSCALL 00010
467#define TCB_ATTACHED 00020 /* Process is not our own child */
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000468#define TCB_BPTSET 00100 /* "Breakpoint" set after fork(2) */
469#define TCB_SIGTRAPPED 00200 /* Process wanted to block SIGTRAP */
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000470#define TCB_REPRINT 01000 /* We should reprint this syscall on exit */
Grant Edwards8a082772011-04-07 20:25:40 +0000471#define TCB_FILTERED 02000 /* This system call has been filtered out */
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000472#ifdef LINUX
Roland McGratheb9e2e82009-06-02 16:49:22 -0700473/* x86 does not need TCB_WAITEXECVE.
Denys Vlasenkob88f9612011-08-21 18:03:23 +0200474 * It can detect SIGTRAP by looking at eax/rax.
Denys Vlasenko8b4454c2011-08-25 10:40:14 +0200475 * See "not a syscall entry (eax = %ld)\n" message
476 * in syscall_fixup_on_sysenter().
Denys Vlasenkobc161ec2009-01-02 18:02:45 +0000477 */
Denys Vlasenkoc71016e2009-03-06 00:33:24 +0000478# if defined(ALPHA) || defined(AVR32) || defined(SPARC) || defined(SPARC64) \
479 || defined(POWERPC) || defined(IA64) || defined(HPPA) \
480 || defined(SH) || defined(SH64) || defined(S390) || defined(S390X) \
Chris Metcalfc8c66982009-12-28 10:00:15 -0500481 || defined(ARM) || defined(MIPS) || defined(BFIN) || defined(TILE)
Denys Vlasenkob88f9612011-08-21 18:03:23 +0200482/* This tracee has entered into execve syscall. Expect post-execve SIGTRAP
483 * to happen. (When it is detected, tracee is continued and this bit is cleared.)
484 */
485# define TCB_WAITEXECVE 04000
Wichert Akkerman7b3346b2001-10-09 23:47:38 +0000486# endif
Roland McGrath923f7502003-01-09 06:53:27 +0000487# include <sys/syscall.h>
488# ifndef __NR_exit_group
489# /* Hack: Most headers around are too old to have __NR_exit_group. */
490# ifdef ALPHA
491# define __NR_exit_group 405
492# elif defined I386
493# define __NR_exit_group 252
Dmitry V. Levinaca9a742006-10-11 22:56:49 +0000494# elif defined X86_64
495# define __NR_exit_group 231
Roland McGrath923f7502003-01-09 06:53:27 +0000496# elif defined IA64
497# define __NR_exit_group 1236
498# elif defined POWERPC
499# define __NR_exit_group 234
500# elif defined S390 || defined S390X
501# define __NR_exit_group 248
Roland McGrath6d1a65c2004-07-12 07:44:08 +0000502# elif defined SPARC || defined SPARC64
Roland McGrath923f7502003-01-09 06:53:27 +0000503# define __NR_exit_group 188
Roland McGrath165155a2005-07-19 07:42:17 +0000504# elif defined M68K
505# define __NR_exit_group 247
Roland McGrath923f7502003-01-09 06:53:27 +0000506# endif /* ALPHA et al */
507# endif /* !__NR_exit_group */
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000508#endif /* LINUX */
509
510/* qualifier flags */
511#define QUAL_TRACE 0001 /* this system call should be traced */
512#define QUAL_ABBREV 0002 /* abbreviate the structures of this syscall */
513#define QUAL_VERBOSE 0004 /* decode the structures of this syscall */
514#define QUAL_RAW 0010 /* print all args in hex for this syscall */
515#define QUAL_SIGNAL 0020 /* report events with this signal */
516#define QUAL_FAULT 0040 /* report events with this fault */
517#define QUAL_READ 0100 /* dump data read on this file descriptor */
518#define QUAL_WRITE 0200 /* dump data written to this file descriptor */
519
520#define entering(tcp) (!((tcp)->flags & TCB_INSYSCALL))
521#define exiting(tcp) ((tcp)->flags & TCB_INSYSCALL)
522#define syserror(tcp) ((tcp)->u_error != 0)
523#define verbose(tcp) (qual_flags[(tcp)->scno] & QUAL_VERBOSE)
524#define abbrev(tcp) (qual_flags[(tcp)->scno] & QUAL_ABBREV)
Grant Edwards8a082772011-04-07 20:25:40 +0000525#define filtered(tcp) ((tcp)->flags & TCB_FILTERED)
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000526
527struct xlat {
528 int val;
Dmitry V. Levin30145dd2010-09-06 22:08:24 +0000529 const char *str;
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000530};
531
Denys Vlasenkof535b542009-01-13 18:30:55 +0000532extern const struct xlat open_mode_flags[];
533extern const struct xlat addrfams[];
534extern const struct xlat struct_user_offsets[];
535extern const struct xlat open_access_modes[];
536
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000537/* Format of syscall return values */
538#define RVAL_DECIMAL 000 /* decimal format */
539#define RVAL_HEX 001 /* hex format */
540#define RVAL_OCTAL 002 /* octal format */
541#define RVAL_UDECIMAL 003 /* unsigned decimal format */
Wichert Akkermanbf79f2e2000-09-01 21:03:06 +0000542#define RVAL_LDECIMAL 004 /* long decimal format */
543#define RVAL_LHEX 005 /* long hex format */
544#define RVAL_LOCTAL 006 /* long octal format */
545#define RVAL_LUDECIMAL 007 /* long unsigned decimal format */
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000546#define RVAL_MASK 007 /* mask for these values */
547
548#define RVAL_STR 010 /* Print `auxstr' field after return val */
549#define RVAL_NONE 020 /* Print nothing */
550
551#ifndef offsetof
552#define offsetof(type, member) (((char *) &(((type *) NULL)->member)) - \
553 ((char *) (type *) NULL))
554#endif /* !offsetof */
555
556/* get offset of member within a user struct */
557#define uoff(member) offsetof(struct user, member)
558
559#define TRACE_FILE 001 /* Trace file-related syscalls. */
560#define TRACE_IPC 002 /* Trace IPC-related syscalls. */
561#define TRACE_NETWORK 004 /* Trace network-related syscalls. */
562#define TRACE_PROCESS 010 /* Trace process-related syscalls. */
563#define TRACE_SIGNAL 020 /* Trace signal-related syscalls. */
Roland McGrath2fe7b132005-07-05 03:25:35 +0000564#define TRACE_DESC 040 /* Trace file descriptor-related syscalls. */
Dmitry V. Levin7655fa02011-02-05 01:07:08 +0000565#define SYSCALL_NEVER_FAILS 0100 /* Syscall is always successful. */
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000566
Dmitry V. Levine3a7ef52010-03-28 19:24:54 +0000567typedef enum {
568 CFLAG_NONE = 0,
569 CFLAG_ONLY_STATS,
570 CFLAG_BOTH
571} cflag_t;
572
Roland McGrath138c6a32006-01-12 09:50:49 +0000573extern int *qual_flags;
Roland McGrath41c48222008-07-18 00:25:10 +0000574extern int debug, followfork;
Denys Vlasenkof44cce42011-06-21 14:34:10 +0200575extern unsigned int ptrace_setoptions;
Dmitry V. Levine3a7ef52010-03-28 19:24:54 +0000576extern int dtime, xflag, qflag;
577extern cflag_t cflag;
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000578extern int max_strlen;
579extern struct tcb *tcp_last;
580
Dmitry V. Levina7945a32006-12-13 17:10:11 +0000581enum bitness_t { BITNESS_CURRENT = 0, BITNESS_32 };
582
Denys Vlasenko75422762011-05-27 14:36:01 +0200583void error_msg(const char *fmt, ...) __attribute__ ((format(printf, 1, 2)));
584void perror_msg(const char *fmt, ...) __attribute__ ((format(printf, 1, 2)));
585void error_msg_and_die(const char *fmt, ...) __attribute__ ((noreturn, format(printf, 1, 2)));
586void perror_msg_and_die(const char *fmt, ...) __attribute__ ((noreturn, format(printf, 1, 2)));
Denys Vlasenko1d46ba52011-08-31 14:00:02 +0200587void die_out_of_memory(void) __attribute__ ((noreturn));
Denys Vlasenko75422762011-05-27 14:36:01 +0200588
Denys Vlasenko5c774b22011-08-20 01:50:09 +0200589extern void set_personality(int personality);
Andreas Schwabe5355de2009-10-27 16:56:43 +0100590extern const char *xlookup(const struct xlat *, int);
591extern struct tcb *alloc_tcb(int, int);
592extern struct tcb *pid2tcb(int);
593extern void droptcb(struct tcb *);
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000594
Dmitry V. Levin10de62b2006-12-13 21:45:31 +0000595#define alloctcb(pid) alloc_tcb((pid), 1)
596
Dmitry V. Levin30145dd2010-09-06 22:08:24 +0000597extern void set_sortby(const char *);
Andreas Schwabe5355de2009-10-27 16:56:43 +0100598extern void set_overhead(int);
Dmitry V. Levin30145dd2010-09-06 22:08:24 +0000599extern void qualify(const char *);
Denys Vlasenko9a36ae52011-08-24 16:47:32 +0200600#ifdef USE_PROCFS
Denys Vlasenko06602d92011-08-24 17:53:52 +0200601extern int get_scno(struct tcb *);
Denys Vlasenko9a36ae52011-08-24 16:47:32 +0200602#endif
Andreas Schwabe5355de2009-10-27 16:56:43 +0100603extern long known_scno(struct tcb *);
604extern long do_ptrace(int request, struct tcb *tcp, void *addr, void *data);
605extern int ptrace_restart(int request, struct tcb *tcp, int sig);
606extern int trace_syscall(struct tcb *);
Denys Vlasenkoc95a88f2011-08-21 17:47:40 +0200607extern void count_syscall(struct tcb *, struct timeval *);
Andreas Schwabe5355de2009-10-27 16:56:43 +0100608extern void printxval(const struct xlat *, int, const char *);
609extern int printargs(struct tcb *);
Denys Vlasenko4924dbd2011-08-19 18:06:46 +0200610extern void addflags(const struct xlat *, int);
Andreas Schwabe5355de2009-10-27 16:56:43 +0100611extern int printflags(const struct xlat *, int, const char *);
612extern const char *sprintflags(const char *, const struct xlat *, int);
613extern int umoven(struct tcb *, long, int, char *);
614extern int umovestr(struct tcb *, long, int, char *);
615extern int upeek(struct tcb *, long, long *);
616extern void dumpiov(struct tcb *, int, long);
617extern void dumpstr(struct tcb *, long, int);
618extern void printstr(struct tcb *, long, int);
Dmitry V. Levin30145dd2010-09-06 22:08:24 +0000619extern void printnum(struct tcb *, long, const char *);
620extern void printnum_int(struct tcb *, long, const char *);
Andreas Schwabe5355de2009-10-27 16:56:43 +0100621extern void printpath(struct tcb *, long);
622extern void printpathn(struct tcb *, long, int);
623extern void printtv_bitness(struct tcb *, long, enum bitness_t, int);
Denys Vlasenko2fb4db32011-08-31 12:26:03 +0200624extern char *sprinttv(struct tcb *, long, enum bitness_t, char *);
Andreas Schwabe5355de2009-10-27 16:56:43 +0100625extern void print_timespec(struct tcb *, long);
626extern void sprint_timespec(char *, struct tcb *, long);
John Hughes58265892001-10-18 15:13:53 +0000627#ifdef HAVE_SIGINFO_T
Andreas Schwabe5355de2009-10-27 16:56:43 +0100628extern void printsiginfo(siginfo_t *, int);
John Hughes58265892001-10-18 15:13:53 +0000629#endif
Grant Edwards8a082772011-04-07 20:25:40 +0000630extern const char *getfdpath(struct tcb *, int);
Dmitry V. Levin31382132011-03-04 05:08:02 +0300631extern void printfd(struct tcb *, int);
Andreas Schwabe5355de2009-10-27 16:56:43 +0100632extern void printsock(struct tcb *, long, int);
633extern void print_sock_optmgmt(struct tcb *, long, int);
634extern void printrusage(struct tcb *, long);
Sergei Trofimovich02a08fb2011-08-11 18:04:53 +0300635#ifdef ALPHA
636extern void printrusage32(struct tcb *, long);
637#endif
Andreas Schwabe5355de2009-10-27 16:56:43 +0100638extern void printuid(const char *, unsigned long);
639extern int clearbpt(struct tcb *);
Denys Vlasenko91ecfac2011-06-23 22:05:50 +0200640/*
641 * On Linux, "setbpt" is a misnomer: we don't set a breakpoint
642 * (IOW: no poking in user's text segment),
643 * instead we change fork/vfork/clone into clone(CLONE_PTRACE).
644 * On newer kernels, we use PTRACE_O_TRACECLONE/TRACE[V]FORK instead.
645 */
Andreas Schwabe5355de2009-10-27 16:56:43 +0100646extern int setbpt(struct tcb *);
Andreas Schwabe5355de2009-10-27 16:56:43 +0100647extern void printcall(struct tcb *);
648extern const char *signame(int);
649extern void print_sigset(struct tcb *, long, int);
650extern void printsignal(int);
651extern void printleader(struct tcb *);
652extern void printtrailer(void);
Denys Vlasenko102ec492011-08-25 01:27:59 +0200653extern void tabto(void);
Andreas Schwabe5355de2009-10-27 16:56:43 +0100654extern void call_summary(FILE *);
Dmitry V. Levin88849682011-06-13 22:58:44 +0000655extern void tprint_iov(struct tcb *, unsigned long, unsigned long, int decode_iov);
Andreas Schwabe5355de2009-10-27 16:56:43 +0100656extern void tprint_open_modes(mode_t);
657extern const char *sprint_open_modes(mode_t);
658extern int is_restart_error(struct tcb *);
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000659
Grant Edwards8a082772011-04-07 20:25:40 +0000660extern int pathtrace_select(const char *);
661extern int pathtrace_match(struct tcb *);
662
Andreas Schwabe5355de2009-10-27 16:56:43 +0100663extern int change_syscall(struct tcb *, int);
Andreas Schwabe5355de2009-10-27 16:56:43 +0100664extern int internal_fork(struct tcb *);
665extern int internal_exec(struct tcb *);
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000666
Andreas Schwabe5355de2009-10-27 16:56:43 +0100667extern const struct ioctlent *ioctl_lookup(long);
668extern const struct ioctlent *ioctl_next_match(const struct ioctlent *);
669extern int ioctl_decode(struct tcb *, long, long);
670extern int term_ioctl(struct tcb *, long, long);
671extern int sock_ioctl(struct tcb *, long, long);
672extern int proc_ioctl(struct tcb *, int, int);
673extern int stream_ioctl(struct tcb *, int, int);
Roland McGrathd83c50b2004-10-06 22:27:43 +0000674#ifdef LINUX
Andreas Schwabe5355de2009-10-27 16:56:43 +0100675extern int rtc_ioctl(struct tcb *, long, long);
676extern int scsi_ioctl(struct tcb *, long, long);
Dmitry V. Levin4ef6db42011-01-15 20:15:31 +0000677extern int block_ioctl(struct tcb *, long, long);
Roland McGrathd83c50b2004-10-06 22:27:43 +0000678#endif
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000679
Andreas Schwabe5355de2009-10-27 16:56:43 +0100680extern int tv_nz(struct timeval *);
681extern int tv_cmp(struct timeval *, struct timeval *);
682extern double tv_float(struct timeval *);
683extern void tv_add(struct timeval *, struct timeval *, struct timeval *);
684extern void tv_sub(struct timeval *, struct timeval *, struct timeval *);
685extern void tv_mul(struct timeval *, struct timeval *, int);
686extern void tv_div(struct timeval *, struct timeval *, int);
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000687
Denys Vlasenko0a295bc2011-09-01 16:31:48 +0200688#if !defined HAVE_STPCPY
Denys Vlasenko52845572011-08-31 12:07:38 +0200689/* Some libc have stpcpy, some don't. Sigh...
690 * Roll our private implementation...
691 */
692#undef stpcpy
693#define stpcpy strace_stpcpy
694extern char *stpcpy(char *dst, const char *src);
Denys Vlasenko0a295bc2011-09-01 16:31:48 +0200695#endif
Denys Vlasenko52845572011-08-31 12:07:38 +0200696
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000697#ifdef SUNOS4
Andreas Schwabe5355de2009-10-27 16:56:43 +0100698extern int fixvfork(struct tcb *);
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000699#endif
Carmelo AMOROSOb9c52572010-12-13 08:48:28 +0100700#if !(defined(LINUX) && !defined(SPARC) && !defined(SPARC64) && !defined(IA64) \
701 && !defined(SH))
Andreas Schwabe5355de2009-10-27 16:56:43 +0100702extern long getrval2(struct tcb *);
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000703#endif
Wichert Akkermanbf79f2e2000-09-01 21:03:06 +0000704#ifdef USE_PROCFS
Andreas Schwabe5355de2009-10-27 16:56:43 +0100705extern int proc_open(struct tcb *tcp, int attaching);
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000706#endif
707
708#define umove(pid, addr, objp) \
709 umoven((pid), (addr), sizeof *(objp), (char *) (objp))
710
Dmitry V. Levina7945a32006-12-13 17:10:11 +0000711#define printtv(tcp, addr) \
Roland McGrath6afc5652007-07-24 01:57:11 +0000712 printtv_bitness((tcp), (addr), BITNESS_CURRENT, 0)
713#define printtv_special(tcp, addr) \
714 printtv_bitness((tcp), (addr), BITNESS_CURRENT, 1)
Dmitry V. Levina7945a32006-12-13 17:10:11 +0000715
Denys Vlasenko75422762011-05-27 14:36:01 +0200716extern void tprintf(const char *fmt, ...) __attribute__ ((format (printf, 1, 2)));
Denys Vlasenko5940e652011-09-01 09:55:05 +0200717extern void tprints(const char *str);
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000718
719#ifndef HAVE_STRERROR
Andreas Schwabe5355de2009-10-27 16:56:43 +0100720const char *strerror(int);
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000721#endif
722#ifndef HAVE_STRSIGNAL
Andreas Schwabe5355de2009-10-27 16:56:43 +0100723const char *strsignal(int);
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000724#endif
725
726extern int current_personality;
Dmitry V. Levin4ebb4e32006-12-13 17:08:08 +0000727extern const int personality_wordsize[];
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000728
729struct sysent {
Denys Vlasenkoac1ce772011-08-23 13:24:17 +0200730 unsigned nargs;
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000731 int sys_flags;
732 int (*sys_func)();
Roland McGrathee36ce12004-09-04 03:53:10 +0000733 const char *sys_name;
Roland McGrath76989d72005-06-07 23:21:31 +0000734 long native_scno; /* Match against SYS_* constants. */
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000735};
736
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000737struct ioctlent {
Roland McGrathee36ce12004-09-04 03:53:10 +0000738 const char *doth;
739 const char *symbol;
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000740 unsigned long code;
741};
742
Denys Vlasenko39fca622011-08-20 02:12:33 +0200743extern const struct sysent *sysent;
Denys Vlasenkoafc64032011-08-23 13:29:01 +0200744extern unsigned nsyscalls;
Denys Vlasenko39fca622011-08-20 02:12:33 +0200745extern const char *const *errnoent;
Denys Vlasenkoafc64032011-08-23 13:29:01 +0200746extern unsigned nerrnos;
Roland McGrathee36ce12004-09-04 03:53:10 +0000747extern const struct ioctlent *ioctlent;
Denys Vlasenkoafc64032011-08-23 13:29:01 +0200748extern unsigned nioctlents;
Roland McGrathee36ce12004-09-04 03:53:10 +0000749extern const char *const *signalent;
Denys Vlasenkoafc64032011-08-23 13:29:01 +0200750extern unsigned nsignals;
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000751
Denys Vlasenkocb6f0562011-08-25 01:13:43 +0200752#define SCNO_IN_RANGE(scno) ((unsigned long)(scno) < nsyscalls)
753
John Hughes0c79e012001-03-08 14:40:06 +0000754#if HAVE_LONG_LONG
John Hughes5a826b82001-03-07 13:21:24 +0000755
John Hughesbdf48f52001-03-06 15:08:09 +0000756/* _l refers to the lower numbered u_arg,
757 * _h refers to the higher numbered u_arg
758 */
John Hughes5a826b82001-03-07 13:21:24 +0000759
John Hughesb8a85a42001-03-28 08:05:27 +0000760#if HAVE_LITTLE_ENDIAN_LONG_LONG
John Hughes0c79e012001-03-08 14:40:06 +0000761#define LONG_LONG(_l,_h) \
Wichert Akkerman7ab47b62002-03-31 19:00:02 +0000762 ((long long)((unsigned long long)(unsigned)(_l) | ((unsigned long long)(_h)<<32)))
John Hughesbdf48f52001-03-06 15:08:09 +0000763#else
John Hughes0c79e012001-03-08 14:40:06 +0000764#define LONG_LONG(_l,_h) \
Wichert Akkerman7ab47b62002-03-31 19:00:02 +0000765 ((long long)((unsigned long long)(unsigned)(_h) | ((unsigned long long)(_l)<<32)))
John Hughesbdf48f52001-03-06 15:08:09 +0000766#endif
Andreas Schwabb5600fc2009-11-04 17:08:34 +0100767
768extern int printllval(struct tcb *, const char *, int);
John Hughesbdf48f52001-03-06 15:08:09 +0000769#endif
Wichert Akkerman7b3346b2001-10-09 23:47:38 +0000770
771#ifdef IA64
772extern long ia32;
773#endif
Michal Ludvig17f8fb32002-11-06 13:17:21 +0000774
775extern int not_failing_only;
Grant Edwards8a082772011-04-07 20:25:40 +0000776extern int show_fd_path;
777extern int tracing_paths;