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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
Wichert Akkerman76baf7c1999-02-19 00:21:36 +000051/* configuration section */
52#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
60#define DEFAULT_STRLEN 32 /* default maximum # of bytes printed in
61 `printstr', change with `-s' switch */
62#endif
63#ifndef DEFAULT_ACOLUMN
64#define DEFAULT_ACOLUMN 40 /* default alignment column for results */
65#endif
66#ifndef MAX_ARGS
67#define MAX_ARGS 32 /* maximum number of args to a syscall */
68#endif
69#ifndef DEFAULT_SORTBY
70#define DEFAULT_SORTBY "time" /* default sorting method for call profiling */
71#endif
72
73#include <sys/types.h>
74#include <unistd.h>
75#include <stdlib.h>
76#include <stdio.h>
77#include <ctype.h>
78#include <string.h>
Wichert Akkerman8c7122c2001-02-16 19:59:55 +000079#include <time.h>
Wichert Akkerman76baf7c1999-02-19 00:21:36 +000080#include <sys/time.h>
81#include <errno.h>
82
83#ifdef STDC_HEADERS
84#include <stddef.h>
85#endif /* STDC_HEADERS */
86
John Hughes58265892001-10-18 15:13:53 +000087#ifdef HAVE_SIGINFO_T
88#include <signal.h>
89#endif
90
Wichert Akkermanf5eeabb1999-11-18 17:09:47 +000091#if defined(LINUX)
Roland McGrath6d1a65c2004-07-12 07:44:08 +000092# if defined(SPARC) || defined(SPARC64)
Wichert Akkermanf5eeabb1999-11-18 17:09:47 +000093# define LINUXSPARC
94# endif
95# if defined(ALPHA)
96# define LINUX_64BIT
97# endif
Michal Ludvig0e035502002-09-23 15:41:01 +000098# if defined(X86_64)
99# define LINUX_X86_64
100# endif
Roland McGrath542c2c62008-05-20 01:11:56 +0000101# if defined(MIPS) && _MIPS_SIM == _MIPS_SIM_ABI32
102# define LINUX_MIPSO32
103# endif
104# if defined(MIPS) && _MIPS_SIM == _MIPS_SIM_NABI32
105# define LINUX_MIPSN32
106# define LINUX_MIPS64
107# endif
108# if defined(MIPS) && _MIPS_SIM == _MIPS_SIM_ABI64
109# define LINUX_MIPSN64
110# define LINUX_MIPS64
111# endif
Roland McGrathee9d4352002-12-18 04:16:10 +0000112#endif
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000113
Wichert Akkermanbf79f2e2000-09-01 21:03:06 +0000114#if defined(SVR4) || defined(FREEBSD)
115#define USE_PROCFS
116#else
117#undef USE_PROCFS
118#endif
119
120#ifdef FREEBSD
121#ifndef I386
122#error "FreeBSD support is only for i386 arch right now."
123#endif
124#include <machine/psl.h>
125#include <machine/reg.h>
126#include <sys/syscall.h>
127#endif
128
129#ifdef USE_PROCFS
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000130#include <sys/procfs.h>
Wichert Akkermanea78f0f1999-11-29 15:34:02 +0000131#ifdef HAVE_MP_PROCFS
Wichert Akkerman9ce1a631999-08-29 23:15:07 +0000132#include <sys/uio.h>
133#endif
Wichert Akkermanbf79f2e2000-09-01 21:03:06 +0000134#ifdef FREEBSD
135#include <sys/pioctl.h>
136#endif /* FREEBSD */
137#else /* !USE_PROCFS */
Michal Ludvig0e035502002-09-23 15:41:01 +0000138#if (defined(LINUXSPARC) || defined (LINUX_X86_64)) && defined(__GLIBC__)
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000139#include <sys/ptrace.h>
140#else
141/* Work around awkward prototype in ptrace.h. */
142#define ptrace xptrace
143#include <sys/ptrace.h>
144#undef ptrace
145#ifdef POWERPC
146#define __KERNEL__
147#include <asm/ptrace.h>
148#undef __KERNEL__
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000149#endif
150#ifdef __STDC__
151#ifdef LINUX
152extern long ptrace(int, int, char *, long);
153#else /* !LINUX */
154extern int ptrace(int, int, char *, int, ...);
155#endif /* !LINUX */
156#else /* !__STDC__ */
157extern int ptrace();
158#endif /* !__STDC__ */
159#endif /* !LINUXSPARC */
160#endif /* !SVR4 */
161
162#ifdef LINUX
Wichert Akkermanb859bea1999-04-18 22:50:50 +0000163#if !defined(__GLIBC__)
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000164#define PTRACE_PEEKUSER PTRACE_PEEKUSR
165#define PTRACE_POKEUSER PTRACE_POKEUSR
166#endif
167#ifdef ALPHA
Wichert Akkermanf90da011999-10-31 21:15:38 +0000168# define REG_R0 0
169# define REG_A0 16
170# define REG_A3 19
171# define REG_FP 30
172# define REG_PC 64
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000173#endif /* ALPHA */
Wichert Akkermanf90da011999-10-31 21:15:38 +0000174#ifdef MIPS
175# define REG_V0 2
176# define REG_A0 4
177# define REG_A3 7
178# define REG_SP 29
179# define REG_EPC 64
180#endif /* MIPS */
Wichert Akkermanc1652e22001-03-27 12:17:16 +0000181#ifdef HPPA
182# define PT_GR20 (20*4)
183# define PT_GR26 (26*4)
184# define PT_GR28 (28*4)
185# define PT_IAOQ0 (106*4)
186# define PT_IAOQ1 (107*4)
187#endif /* HPPA */
Roland McGrathf5a47772003-06-26 22:40:42 +0000188#ifdef SH64
189 /* SH64 Linux - this code assumes the following kernel API for system calls:
Roland McGrathe1e584b2003-06-02 19:18:58 +0000190 PC Offset 0
191 System Call Offset 16 (actually, (syscall no.) | (0x1n << 16),
192 where n = no. of parameters.
193 Other regs Offset 24+
194
195 On entry: R2-7 = parameters 1-6 (as many as necessary)
196 On return: R9 = result. */
197
198 /* Offset for peeks of registers */
199# define REG_OFFSET (24)
200# define REG_GENERAL(x) (8*(x)+REG_OFFSET)
201# define REG_PC (0*8)
202# define REG_SYSCALL (2*8)
Roland McGrathf5a47772003-06-26 22:40:42 +0000203#endif /* SH64 */
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000204#endif /* LINUX */
205
206#define SUPPORTED_PERSONALITIES 1
207#define DEFAULT_PERSONALITY 0
208
209#ifdef LINUXSPARC
Roland McGrath4b2dcca2006-01-12 10:18:53 +0000210#define PERSONALITY0_WORDSIZE 4
211#define PERSONALITY1_WORDSIZE 4
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000212#undef SUPPORTED_PERSONALITIES
Roland McGrath6d1a65c2004-07-12 07:44:08 +0000213#if defined(SPARC64)
Roland McGrath5aa04342007-09-12 01:26:26 +0000214#include <asm/psrcompat.h>
Roland McGrath6d1a65c2004-07-12 07:44:08 +0000215#define SUPPORTED_PERSONALITIES 3
Roland McGrath4b2dcca2006-01-12 10:18:53 +0000216#define PERSONALITY2_WORDSIZE 8
Roland McGrath6d1a65c2004-07-12 07:44:08 +0000217#else
Roland McGrath5aa04342007-09-12 01:26:26 +0000218#include <asm/psr.h>
Wichert Akkermanb859bea1999-04-18 22:50:50 +0000219#define SUPPORTED_PERSONALITIES 2
Roland McGrath6d1a65c2004-07-12 07:44:08 +0000220#endif /* SPARC64 */
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000221#endif /* LINUXSPARC */
222
Michal Ludvig0e035502002-09-23 15:41:01 +0000223#ifdef X86_64
224#undef SUPPORTED_PERSONALITIES
225#define SUPPORTED_PERSONALITIES 2
Roland McGrath4b2dcca2006-01-12 10:18:53 +0000226#define PERSONALITY0_WORDSIZE 8
227#define PERSONALITY1_WORDSIZE 4
Roland McGrathee9d4352002-12-18 04:16:10 +0000228#endif
229
Roland McGrath56703312008-05-20 01:35:55 +0000230#ifdef ARM
231#undef SUPPORTED_PERSONALITIES
232#define SUPPORTED_PERSONALITIES 2
233#define PERSONALITY0_WORDSIZE 4
234#define PERSONALITY1_WORDSIZE 4
235#endif
236
Wichert Akkerman9ce1a631999-08-29 23:15:07 +0000237#ifdef SVR4
Wichert Akkermanea78f0f1999-11-29 15:34:02 +0000238#ifdef HAVE_MP_PROCFS
Wichert Akkerman9ce1a631999-08-29 23:15:07 +0000239extern int mp_ioctl (int f, int c, void *a, int s);
240#define IOCTL(f,c,a) mp_ioctl (f, c, a, sizeof *a)
241#define IOCTL_STATUS(t) \
242 pread (t->pfd_stat, &t->status, sizeof t->status, 0)
243#define IOCTL_WSTOP(t) \
Wichert Akkerman16a03d22000-08-10 02:14:04 +0000244 (IOCTL (t->pfd, PCWSTOP, (char *)NULL) < 0 ? -1 : \
Wichert Akkerman9ce1a631999-08-29 23:15:07 +0000245 IOCTL_STATUS (t))
246#define PR_WHY pr_lwp.pr_why
247#define PR_WHAT pr_lwp.pr_what
248#define PR_REG pr_lwp.pr_context.uc_mcontext.gregs
249#define PR_FLAGS pr_lwp.pr_flags
John Hughes25299712001-03-06 10:10:06 +0000250#define PR_SYSCALL pr_lwp.pr_syscall
John Hughes58265892001-10-18 15:13:53 +0000251#define PR_INFO pr_lwp.pr_info
Wichert Akkerman9ce1a631999-08-29 23:15:07 +0000252#define PIOCSTIP PCSTOP
253#define PIOCSET PCSET
254#define PIOCRESET PCRESET
255#define PIOCSTRACE PCSTRACE
256#define PIOCSFAULT PCSFAULT
257#define PIOCWSTOP PCWSTOP
258#define PIOCSTOP PCSTOP
259#define PIOCSENTRY PCSENTRY
260#define PIOCSEXIT PCSEXIT
261#define PIOCRUN PCRUN
262#else
263#define IOCTL ioctl
264#define IOCTL_STATUS(t) ioctl (t->pfd, PIOCSTATUS, &t->status)
Roland McGrathee9d4352002-12-18 04:16:10 +0000265#define IOCTL_WSTOP(t) ioctl (t->pfd, PIOCWSTOP, &t->status)
Wichert Akkerman9ce1a631999-08-29 23:15:07 +0000266#define PR_WHY pr_why
267#define PR_WHAT pr_what
268#define PR_REG pr_reg
269#define PR_FLAGS pr_flags
John Hughes25299712001-03-06 10:10:06 +0000270#define PR_SYSCALL pr_syscall
John Hughes58265892001-10-18 15:13:53 +0000271#define PR_INFO pr_info
Wichert Akkerman9ce1a631999-08-29 23:15:07 +0000272#endif
273#endif
Wichert Akkermanbf79f2e2000-09-01 21:03:06 +0000274#ifdef FREEBSD
275#define IOCTL ioctl
276#define IOCTL_STATUS(t) ioctl (t->pfd, PIOCSTATUS, &t->status)
277#define IOCTL_WSTOP(t) ioctl (t->pfd, PIOCWAIT, &t->status)
278#define PIOCRUN PIOCCONT
279#define PIOCWSTOP PIOCWAIT
280#define PR_WHY why
281#define PR_WHAT val
Wichert Akkerman2e4ffe52000-09-03 23:57:48 +0000282#define PR_FLAGS state
Wichert Akkermanbf79f2e2000-09-01 21:03:06 +0000283/* from /usr/src/sys/miscfs/procfs/procfs_vnops.c,
284 status.state = 0 for running, 1 for stopped */
Wichert Akkerman2e4ffe52000-09-03 23:57:48 +0000285#define PR_ASLEEP 1
Wichert Akkermanbf79f2e2000-09-01 21:03:06 +0000286#define PR_SYSENTRY S_SCE
287#define PR_SYSEXIT S_SCX
288#define PR_SIGNALLED S_SIG
289#define PR_FAULTED S_CORE
290#endif
Wichert Akkerman9ce1a631999-08-29 23:15:07 +0000291
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000292/* Trace Control Block */
293struct tcb {
294 short flags; /* See below for TCB_ values */
295 int pid; /* Process Id of this entry */
296 long scno; /* System call number */
297 int u_nargs; /* System call arguments */
298 long u_arg[MAX_ARGS]; /* System call arguments */
Roland McGrath542c2c62008-05-20 01:11:56 +0000299#if defined (LINUX_MIPSN32)
300 long long ext_arg[MAX_ARGS]; /* System call arguments */
301#endif
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000302 int u_error; /* Error code */
303 long u_rval; /* (first) return value */
Wichert Akkerman16a03d22000-08-10 02:14:04 +0000304#ifdef HAVE_LONG_LONG
305 long long u_lrval; /* long long return value */
306#endif
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000307 FILE *outf; /* Output file for this process */
Wichert Akkerman43a74822000-06-27 17:33:32 +0000308 const char *auxstr; /* Auxiliary info from syscall (see RVAL_STR) */
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000309 struct timeval stime; /* System time usage as of last process wait */
310 struct timeval dtime; /* Delta for system time usage */
311 struct timeval etime; /* Syscall entry time */
312 /* Support for tracing forked processes */
313 struct tcb *parent; /* Parent of this process */
314 int nchildren; /* # of traced children */
315 int waitpid; /* pid(s) this process is waiting for */
Roland McGrath09623452003-05-23 02:27:13 +0000316 int nzombies; /* # of formerly traced children now dead */
Roland McGrath923f7502003-01-09 06:53:27 +0000317#ifdef LINUX
318 int nclone_threads; /* # of nchildren with CLONE_THREAD */
319 int nclone_detached; /* # of nchildren with CLONE_DETACHED */
320 int nclone_waiting; /* clone threads in wait4 (TCB_SUSPENDED) */
321#endif
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000322 /* (1st arg of wait4()) */
323 long baddr; /* `Breakpoint' address */
324 long inst[2]; /* Instructions on above */
325 int pfd; /* proc file descriptor */
326#ifdef SVR4
Wichert Akkermanea78f0f1999-11-29 15:34:02 +0000327#ifdef HAVE_MP_PROCFS
Wichert Akkerman9ce1a631999-08-29 23:15:07 +0000328 int pfd_stat;
329 int pfd_as;
330 pstatus_t status;
331#else
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000332 prstatus_t status; /* procfs status structure */
333#endif
Wichert Akkerman9ce1a631999-08-29 23:15:07 +0000334#endif
Wichert Akkermanbf79f2e2000-09-01 21:03:06 +0000335#ifdef FREEBSD
336 struct procfs_status status;
337 int pfd_reg;
338 int pfd_status;
339#endif
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000340};
341
342/* TCB flags */
343#define TCB_STARTUP 00001 /* We have just begun ptracing this process */
344#define TCB_INUSE 00002 /* This table entry is in use */
345#define TCB_INSYSCALL 00004 /* A system call is in progress */
346#define TCB_ATTACHED 00010 /* Process is not our own child */
347#define TCB_EXITING 00020 /* As far as we know, this process is exiting */
348#define TCB_SUSPENDED 00040 /* Process has done a wait(4), that can
349 not be allowed to complete just now */
350#define TCB_BPTSET 00100 /* "Breakpoint" set after fork(2) */
351#define TCB_SIGTRAPPED 00200 /* Process wanted to block SIGTRAP */
352#define TCB_FOLLOWFORK 00400 /* Process should have forks followed */
353#define TCB_REPRINT 01000 /* We should reprint this syscall on exit */
354#ifdef LINUX
Roland McGrath542c2c62008-05-20 01:11:56 +0000355# if defined(ALPHA) || defined(SPARC) || defined(SPARC64) || defined(POWERPC) || defined(IA64) || defined(HPPA) || defined(SH) || defined(SH64) || defined(S390) || defined(S390X) || defined(ARM) || defined(MIPS)
Wichert Akkerman7b3346b2001-10-09 23:47:38 +0000356# define TCB_WAITEXECVE 02000 /* ignore SIGTRAP after exceve */
357# endif
Roland McGrath923f7502003-01-09 06:53:27 +0000358# define TCB_CLONE_DETACHED 04000 /* CLONE_DETACHED set in creating syscall */
359# define TCB_CLONE_THREAD 010000 /* CLONE_THREAD set in creating syscall */
360# define TCB_GROUP_EXITING 020000 /* TCB_EXITING was exit_group, not _exit */
361# include <sys/syscall.h>
362# ifndef __NR_exit_group
363# /* Hack: Most headers around are too old to have __NR_exit_group. */
364# ifdef ALPHA
365# define __NR_exit_group 405
366# elif defined I386
367# define __NR_exit_group 252
Dmitry V. Levinaca9a742006-10-11 22:56:49 +0000368# elif defined X86_64
369# define __NR_exit_group 231
Roland McGrath923f7502003-01-09 06:53:27 +0000370# elif defined IA64
371# define __NR_exit_group 1236
372# elif defined POWERPC
373# define __NR_exit_group 234
374# elif defined S390 || defined S390X
375# define __NR_exit_group 248
Roland McGrath6d1a65c2004-07-12 07:44:08 +0000376# elif defined SPARC || defined SPARC64
Roland McGrath923f7502003-01-09 06:53:27 +0000377# define __NR_exit_group 188
Roland McGrath165155a2005-07-19 07:42:17 +0000378# elif defined M68K
379# define __NR_exit_group 247
Roland McGrath923f7502003-01-09 06:53:27 +0000380# endif /* ALPHA et al */
381# endif /* !__NR_exit_group */
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000382#endif /* LINUX */
383
384/* qualifier flags */
385#define QUAL_TRACE 0001 /* this system call should be traced */
386#define QUAL_ABBREV 0002 /* abbreviate the structures of this syscall */
387#define QUAL_VERBOSE 0004 /* decode the structures of this syscall */
388#define QUAL_RAW 0010 /* print all args in hex for this syscall */
389#define QUAL_SIGNAL 0020 /* report events with this signal */
390#define QUAL_FAULT 0040 /* report events with this fault */
391#define QUAL_READ 0100 /* dump data read on this file descriptor */
392#define QUAL_WRITE 0200 /* dump data written to this file descriptor */
393
394#define entering(tcp) (!((tcp)->flags & TCB_INSYSCALL))
395#define exiting(tcp) ((tcp)->flags & TCB_INSYSCALL)
396#define syserror(tcp) ((tcp)->u_error != 0)
397#define verbose(tcp) (qual_flags[(tcp)->scno] & QUAL_VERBOSE)
398#define abbrev(tcp) (qual_flags[(tcp)->scno] & QUAL_ABBREV)
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000399
400struct xlat {
401 int val;
402 char *str;
403};
404
405/* Format of syscall return values */
406#define RVAL_DECIMAL 000 /* decimal format */
407#define RVAL_HEX 001 /* hex format */
408#define RVAL_OCTAL 002 /* octal format */
409#define RVAL_UDECIMAL 003 /* unsigned decimal format */
Wichert Akkermanbf79f2e2000-09-01 21:03:06 +0000410#define RVAL_LDECIMAL 004 /* long decimal format */
411#define RVAL_LHEX 005 /* long hex format */
412#define RVAL_LOCTAL 006 /* long octal format */
413#define RVAL_LUDECIMAL 007 /* long unsigned decimal format */
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000414#define RVAL_MASK 007 /* mask for these values */
415
416#define RVAL_STR 010 /* Print `auxstr' field after return val */
417#define RVAL_NONE 020 /* Print nothing */
418
419#ifndef offsetof
420#define offsetof(type, member) (((char *) &(((type *) NULL)->member)) - \
421 ((char *) (type *) NULL))
422#endif /* !offsetof */
423
424/* get offset of member within a user struct */
425#define uoff(member) offsetof(struct user, member)
426
427#define TRACE_FILE 001 /* Trace file-related syscalls. */
428#define TRACE_IPC 002 /* Trace IPC-related syscalls. */
429#define TRACE_NETWORK 004 /* Trace network-related syscalls. */
430#define TRACE_PROCESS 010 /* Trace process-related syscalls. */
431#define TRACE_SIGNAL 020 /* Trace signal-related syscalls. */
Roland McGrath2fe7b132005-07-05 03:25:35 +0000432#define TRACE_DESC 040 /* Trace file descriptor-related syscalls. */
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000433
Roland McGrathee9d4352002-12-18 04:16:10 +0000434extern struct tcb **tcbtab;
Roland McGrath138c6a32006-01-12 09:50:49 +0000435extern int *qual_flags;
Roland McGrath41c48222008-07-18 00:25:10 +0000436extern int debug, followfork;
Dmitry V. Levinb9fe0112006-12-13 16:59:44 +0000437extern int dtime, cflag, xflag, qflag;
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000438extern int acolumn;
Roland McGrathee9d4352002-12-18 04:16:10 +0000439extern unsigned int nprocs, tcbtabsize;
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000440extern int max_strlen;
441extern struct tcb *tcp_last;
442
443#ifdef __STDC__
444#define P(args) args
445#else
446#define P(args) ()
447#endif
448
Dmitry V. Levina7945a32006-12-13 17:10:11 +0000449enum bitness_t { BITNESS_CURRENT = 0, BITNESS_32 };
450
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000451extern int set_personality P((int personality));
Dmitry V. Levinab9008b2007-01-11 22:05:04 +0000452extern const char *xlookup P((const struct xlat *, int));
Dmitry V. Levin10de62b2006-12-13 21:45:31 +0000453extern struct tcb *alloc_tcb P((int, int));
Roland McGrath923f7502003-01-09 06:53:27 +0000454extern struct tcb *pid2tcb P((int));
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000455extern void droptcb P((struct tcb *));
Roland McGrath7b54a7a2004-06-04 01:50:45 +0000456extern int expand_tcbtab P((void));
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000457
Dmitry V. Levin10de62b2006-12-13 21:45:31 +0000458#define alloctcb(pid) alloc_tcb((pid), 1)
459
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000460extern void set_sortby P((char *));
461extern void set_overhead P((int));
462extern void qualify P((char *));
Wichert Akkermanbf79f2e2000-09-01 21:03:06 +0000463extern int get_scno P((struct tcb *));
Roland McGrath76989d72005-06-07 23:21:31 +0000464extern long known_scno P((struct tcb *));
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000465extern int trace_syscall P((struct tcb *));
Dmitry V. Levin7d61ff12006-12-21 21:15:04 +0000466extern int count_syscall P((struct tcb *, struct timeval *));
Roland McGrathb2dee132005-06-01 19:02:36 +0000467extern void printxval P((const struct xlat *, int, const char *));
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000468extern int printargs P((struct tcb *));
Roland McGrathd9f816f2004-09-04 03:39:20 +0000469extern int addflags P((const struct xlat *, int));
Roland McGrathb2dee132005-06-01 19:02:36 +0000470extern int printflags P((const struct xlat *, int, const char *));
Roland McGratha6c0d8c2007-11-01 21:46:22 +0000471extern const char *sprintflags P((const char *, const struct xlat *, int));
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000472extern int umoven P((struct tcb *, long, int, char *));
473extern int umovestr P((struct tcb *, long, int, char *));
474extern int upeek P((int, long, long *));
John Hughes1d08dcf2001-07-10 13:48:44 +0000475extern void dumpiov P((struct tcb *, int, long));
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000476extern void dumpstr P((struct tcb *, long, int));
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000477extern void printstr P((struct tcb *, long, int));
478extern void printnum P((struct tcb *, long, char *));
Roland McGrath9814a942005-07-04 23:28:10 +0000479extern void printnum_int P((struct tcb *, long, char *));
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000480extern void printpath P((struct tcb *, long));
481extern void printpathn P((struct tcb *, long, int));
Roland McGrath6afc5652007-07-24 01:57:11 +0000482extern void printtv_bitness P((struct tcb *, long, enum bitness_t, int));
Dmitry V. Levina7945a32006-12-13 17:10:11 +0000483extern void sprinttv P((struct tcb *, long, enum bitness_t, char *));
Roland McGrath6bc09da2007-11-01 21:50:54 +0000484extern void print_timespec P((struct tcb *, long));
485extern void sprint_timespec P((char *, struct tcb *, long));
John Hughes58265892001-10-18 15:13:53 +0000486#ifdef HAVE_SIGINFO_T
487extern void printsiginfo P((siginfo_t *, int));
488#endif
Wichert Akkermanf5eeabb1999-11-18 17:09:47 +0000489extern void printsock P((struct tcb *, long, int));
John Hughes38ae88d2002-05-23 11:48:58 +0000490extern void print_sock_optmgmt P((struct tcb *, long, int));
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000491extern void printrusage P((struct tcb *, long));
Roland McGrath6bc12202003-11-13 22:32:27 +0000492extern void printuid P((const char *, unsigned long));
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000493extern int clearbpt P((struct tcb *));
494extern int setbpt P((struct tcb *));
495extern int sigishandled P((struct tcb *, int));
496extern void printcall P((struct tcb *));
Roland McGrathee36ce12004-09-04 03:53:10 +0000497extern const char *signame P((int));
Dmitry V. Levin95ebf5a2006-10-13 20:25:12 +0000498extern void print_sigset P((struct tcb *, long, int));
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000499extern void printsignal P((int));
500extern void printleader P((struct tcb *));
501extern void printtrailer P((struct tcb *));
502extern void tabto P((int));
503extern void call_summary P((FILE *));
Roland McGrathaa524c82005-06-01 19:22:06 +0000504extern void tprint_iov P((struct tcb *, unsigned long, unsigned long));
Dmitry V. Levin9b5b67e2007-01-11 23:19:55 +0000505extern void tprint_open_modes P((struct tcb *, mode_t));
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000506
Wichert Akkerman7a0b6491999-12-23 15:08:17 +0000507#ifdef LINUX
508extern int internal_clone P((struct tcb *));
509#endif
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000510extern int internal_fork P((struct tcb *));
511extern int internal_exec P((struct tcb *));
Roland McGrathc74c0b72004-09-01 19:39:46 +0000512extern int internal_wait P((struct tcb *, int));
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000513extern int internal_exit P((struct tcb *));
514
Roland McGrathee36ce12004-09-04 03:53:10 +0000515extern const struct ioctlent *ioctl_lookup P((long));
516extern const struct ioctlent *ioctl_next_match P((const struct ioctlent *));
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000517extern int ioctl_decode P((struct tcb *, long, long));
518extern int term_ioctl P((struct tcb *, long, long));
519extern int sock_ioctl P((struct tcb *, long, long));
520extern int proc_ioctl P((struct tcb *, int, int));
521extern int stream_ioctl P((struct tcb *, int, int));
Roland McGrathd83c50b2004-10-06 22:27:43 +0000522#ifdef LINUX
523extern int rtc_ioctl P((struct tcb *, long, long));
Dmitry V. Levinb011af52007-06-30 11:37:09 +0000524extern int scsi_ioctl P((struct tcb *, long, long));
Roland McGrathd83c50b2004-10-06 22:27:43 +0000525#endif
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000526
527extern void tv_tv P((struct timeval *, int, int));
528extern int tv_nz P((struct timeval *));
529extern int tv_cmp P((struct timeval *, struct timeval *));
530extern double tv_float P((struct timeval *));
531extern void tv_add P((struct timeval *, struct timeval *, struct timeval *));
532extern void tv_sub P((struct timeval *, struct timeval *, struct timeval *));
533extern void tv_mul P((struct timeval *, struct timeval *, int));
534extern void tv_div P((struct timeval *, struct timeval *, int));
535
536#ifdef SUNOS4
537extern int fixvfork P((struct tcb *));
538#endif
Roland McGrath6d1a65c2004-07-12 07:44:08 +0000539#if !(defined(LINUX) && !defined(SPARC) && !defined(SPARC64) && !defined(IA64))
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000540extern long getrval2 P((struct tcb *));
541#endif
Wichert Akkermanbf79f2e2000-09-01 21:03:06 +0000542#ifdef USE_PROCFS
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000543extern int proc_open P((struct tcb *tcp, int attaching));
544#endif
545
546#define umove(pid, addr, objp) \
547 umoven((pid), (addr), sizeof *(objp), (char *) (objp))
548
Dmitry V. Levina7945a32006-12-13 17:10:11 +0000549#define printtv(tcp, addr) \
Roland McGrath6afc5652007-07-24 01:57:11 +0000550 printtv_bitness((tcp), (addr), BITNESS_CURRENT, 0)
551#define printtv_special(tcp, addr) \
552 printtv_bitness((tcp), (addr), BITNESS_CURRENT, 1)
Dmitry V. Levina7945a32006-12-13 17:10:11 +0000553
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000554#ifdef __STDC__
555#ifdef __GNUC__
556extern void tprintf(const char *fmt, ...)
557 __attribute__ ((format (printf, 1, 2)));
558#else
559extern void tprintf(const char *fmt, ...);
560#endif
561#else
562extern void tprintf();
563#endif
564
565#ifndef HAVE_STRERROR
566const char *strerror P((int));
567#endif
568#ifndef HAVE_STRSIGNAL
569const char *strsignal P((int));
570#endif
571
572extern int current_personality;
Dmitry V. Levin4ebb4e32006-12-13 17:08:08 +0000573extern const int personality_wordsize[];
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000574
575struct sysent {
576 int nargs;
577 int sys_flags;
578 int (*sys_func)();
Roland McGrathee36ce12004-09-04 03:53:10 +0000579 const char *sys_name;
Roland McGrath76989d72005-06-07 23:21:31 +0000580 long native_scno; /* Match against SYS_* constants. */
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000581};
582
Roland McGrathee36ce12004-09-04 03:53:10 +0000583extern const struct sysent *sysent;
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000584extern int nsyscalls;
585
Roland McGrathee36ce12004-09-04 03:53:10 +0000586extern const char *const *errnoent;
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000587extern int nerrnos;
588
589struct ioctlent {
Roland McGrathee36ce12004-09-04 03:53:10 +0000590 const char *doth;
591 const char *symbol;
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000592 unsigned long code;
593};
594
Roland McGrathee36ce12004-09-04 03:53:10 +0000595extern const struct ioctlent *ioctlent;
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000596extern int nioctlents;
Roland McGrathee36ce12004-09-04 03:53:10 +0000597
598extern const char *const *signalent;
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000599extern int nsignals;
600
Roland McGrathee36ce12004-09-04 03:53:10 +0000601extern const struct ioctlent ioctlent0[];
602extern const int nioctlents0;
603extern const char *const signalent0[];
604extern const int nsignals0;
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000605
606#if SUPPORTED_PERSONALITIES >= 2
Roland McGrathee36ce12004-09-04 03:53:10 +0000607extern const struct ioctlent ioctlent1[];
Michal Ludvig51d1ebc2004-09-07 14:06:03 +0000608extern const int nioctlents1;
Roland McGrathee36ce12004-09-04 03:53:10 +0000609extern const char *const signalent1[];
610extern const int nsignals1;
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000611#endif /* SUPPORTED_PERSONALITIES >= 2 */
612
613#if SUPPORTED_PERSONALITIES >= 3
Roland McGrathee36ce12004-09-04 03:53:10 +0000614extern const struct ioctlent ioctlent2[];
615extern const int nioctlents2;
616extern const char *const signalent2[];
Michal Ludvig51d1ebc2004-09-07 14:06:03 +0000617extern const int nsignals2;
Wichert Akkerman76baf7c1999-02-19 00:21:36 +0000618#endif /* SUPPORTED_PERSONALITIES >= 3 */
John Hughesbdf48f52001-03-06 15:08:09 +0000619
Roland McGrathe6d3a292003-01-14 09:46:18 +0000620#if defined(FREEBSD) || (defined(LINUX) \
Roland McGrathc0f8bbd2003-08-21 09:58:00 +0000621 && defined(POWERPC) && !defined(__powerpc64__)) \
Roland McGrath542c2c62008-05-20 01:11:56 +0000622 || defined (LINUX_MIPSO32)
John Hughes5a826b82001-03-07 13:21:24 +0000623/* ARRGH! off_t args are aligned on 64 bit boundaries! */
624#define ALIGN64(tcp,arg) \
625do { \
626 if (arg % 2) \
627 memmove (&tcp->u_arg[arg], &tcp->u_arg[arg + 1], \
628 (tcp->u_nargs - arg - 1) * sizeof tcp->u_arg[0]); \
629} while (0)
630#else
631#define ALIGN64(tcp,arg) do { } while (0)
632#endif
633
John Hughes0c79e012001-03-08 14:40:06 +0000634#if HAVE_LONG_LONG
John Hughes5a826b82001-03-07 13:21:24 +0000635
John Hughesbdf48f52001-03-06 15:08:09 +0000636/* _l refers to the lower numbered u_arg,
637 * _h refers to the higher numbered u_arg
638 */
John Hughes5a826b82001-03-07 13:21:24 +0000639
John Hughesb8a85a42001-03-28 08:05:27 +0000640#if HAVE_LITTLE_ENDIAN_LONG_LONG
John Hughes0c79e012001-03-08 14:40:06 +0000641#define LONG_LONG(_l,_h) \
Wichert Akkerman7ab47b62002-03-31 19:00:02 +0000642 ((long long)((unsigned long long)(unsigned)(_l) | ((unsigned long long)(_h)<<32)))
John Hughesbdf48f52001-03-06 15:08:09 +0000643#else
John Hughes0c79e012001-03-08 14:40:06 +0000644#define LONG_LONG(_l,_h) \
Wichert Akkerman7ab47b62002-03-31 19:00:02 +0000645 ((long long)((unsigned long long)(unsigned)(_h) | ((unsigned long long)(_l)<<32)))
John Hughesbdf48f52001-03-06 15:08:09 +0000646#endif
647#endif
Wichert Akkerman7b3346b2001-10-09 23:47:38 +0000648
649#ifdef IA64
650extern long ia32;
651#endif
Michal Ludvig17f8fb32002-11-06 13:17:21 +0000652
653extern int not_failing_only;