defs.h revision e5355de95c495dcfc616509f88c4fb5f9996b8e6
1/*
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
32#ifdef HAVE_CONFIG_H
33#include "config.h"
34#endif
35
36#ifdef MIPS
37#include <sgidefs.h>
38#endif
39
40#ifdef linux
41#include <features.h>
42#endif
43
44#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
51/* configuration section */
52#ifndef MAX_QUALS
53#if defined(LINUX) && defined(MIPS)
54#define MAX_QUALS	7000	/* maximum number of syscalls, signals, etc. */
55#else
56#define MAX_QUALS	2048	/* maximum number of syscalls, signals, etc. */
57#endif
58#endif
59#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# ifdef HPPA
68#  define MAX_ARGS	6	/* maximum number of args to a syscall */
69# else
70#  define MAX_ARGS	32	/* maximum number of args to a syscall */
71# endif
72#endif
73#ifndef DEFAULT_SORTBY
74#define DEFAULT_SORTBY "time"	/* default sorting method for call profiling */
75#endif
76
77#include <sys/types.h>
78#include <unistd.h>
79#include <stdlib.h>
80#include <stdio.h>
81#include <ctype.h>
82#include <string.h>
83#include <time.h>
84#include <sys/time.h>
85#include <errno.h>
86
87#ifdef HAVE_STDBOOL_H
88#include <stdbool.h>
89#endif
90
91#ifdef STDC_HEADERS
92#include <stddef.h>
93#endif /* STDC_HEADERS */
94
95#ifdef HAVE_SIGINFO_T
96#include <signal.h>
97#endif
98
99#if defined(LINUX)
100#  if defined(SPARC) || defined(SPARC64)
101#     define LINUXSPARC
102#  endif
103#  if defined(X86_64)
104#     define LINUX_X86_64
105#  endif
106#  if defined(MIPS) && _MIPS_SIM == _MIPS_SIM_ABI32
107#     define LINUX_MIPSO32
108#  endif
109#  if defined(MIPS) && _MIPS_SIM == _MIPS_SIM_NABI32
110#     define LINUX_MIPSN32
111#     define LINUX_MIPS64
112#  endif
113#  if defined(MIPS) && _MIPS_SIM == _MIPS_SIM_ABI64
114#     define LINUX_MIPSN64
115#     define LINUX_MIPS64
116#  endif
117#  if defined(ARM)
118#     define LINUX_ARM
119#  endif
120#  if defined(AVR32)
121#     define LINUX_AVR32
122#  endif
123#endif
124
125#if defined(SVR4) || defined(FREEBSD)
126#define USE_PROCFS
127#else
128#undef USE_PROCFS
129#endif
130
131#ifdef FREEBSD
132#ifndef I386
133#error "FreeBSD support is only for i386 arch right now."
134#endif
135#include <machine/psl.h>
136#include <machine/reg.h>
137#include <sys/syscall.h>
138#endif
139
140#ifdef USE_PROCFS
141#include <sys/procfs.h>
142#ifdef HAVE_MP_PROCFS
143#include <sys/uio.h>
144#endif
145#ifdef FREEBSD
146#include <sys/pioctl.h>
147#endif /* FREEBSD */
148#else /* !USE_PROCFS */
149#if (defined(LINUXSPARC) || defined(LINUX_X86_64) || defined(LINUX_ARM) || defined(LINUX_AVR32)) && defined(__GLIBC__)
150#include <sys/ptrace.h>
151#else
152/* Work around awkward prototype in ptrace.h. */
153#define ptrace xptrace
154#include <sys/ptrace.h>
155#undef ptrace
156#ifdef POWERPC
157#define __KERNEL__
158#include <asm/ptrace.h>
159#undef __KERNEL__
160#endif
161#ifdef LINUX
162extern long ptrace(int, int, char *, long);
163#else /* !LINUX */
164extern int ptrace(int, int, char *, int, ...);
165#endif /* !LINUX */
166#endif /* !LINUXSPARC */
167#endif /* !SVR4 */
168
169#ifdef LINUX
170#if !defined(__GLIBC__)
171#define	PTRACE_PEEKUSER	PTRACE_PEEKUSR
172#define	PTRACE_POKEUSER	PTRACE_POKEUSR
173#endif
174#ifdef ALPHA
175#  define REG_R0 0
176#  define REG_A0 16
177#  define REG_A3 19
178#  define REG_FP 30
179#  define REG_PC 64
180#endif /* ALPHA */
181#ifdef MIPS
182#  define REG_V0 2
183#  define REG_A0 4
184#  define REG_A3 7
185#  define REG_SP 29
186#  define REG_EPC 64
187#endif /* MIPS */
188#ifdef HPPA
189#  define PT_GR20 (20*4)
190#  define PT_GR26 (26*4)
191#  define PT_GR28 (28*4)
192#  define PT_IAOQ0 (106*4)
193#  define PT_IAOQ1 (107*4)
194#endif /* HPPA */
195#ifdef SH64
196   /* SH64 Linux - this code assumes the following kernel API for system calls:
197          PC           Offset 0
198          System Call  Offset 16 (actually, (syscall no.) | (0x1n << 16),
199                       where n = no. of parameters.
200          Other regs   Offset 24+
201
202          On entry:    R2-7 = parameters 1-6 (as many as necessary)
203          On return:   R9   = result. */
204
205   /* Offset for peeks of registers */
206#  define REG_OFFSET         (24)
207#  define REG_GENERAL(x)     (8*(x)+REG_OFFSET)
208#  define REG_PC             (0*8)
209#  define REG_SYSCALL        (2*8)
210#endif /* SH64 */
211#endif /* LINUX */
212
213#define SUPPORTED_PERSONALITIES 1
214#define DEFAULT_PERSONALITY 0
215
216#ifdef LINUXSPARC
217/* Indexes into the pt_regs.u_reg[] array -- UREG_XX from kernel are all off
218 * by 1 and use Ix instead of Ox.  These work for both 32 and 64 bit Linux. */
219#define U_REG_G1 0
220#define U_REG_O0 7
221#define U_REG_O1 8
222#define PERSONALITY0_WORDSIZE 4
223#define PERSONALITY1_WORDSIZE 4
224#undef  SUPPORTED_PERSONALITIES
225#if defined(SPARC64)
226#include <asm/psrcompat.h>
227#define SUPPORTED_PERSONALITIES 3
228#define PERSONALITY2_WORDSIZE 8
229#else
230#include <asm/psr.h>
231#define SUPPORTED_PERSONALITIES 2
232#endif /* SPARC64 */
233#endif /* LINUXSPARC */
234
235#ifdef X86_64
236#undef SUPPORTED_PERSONALITIES
237#define SUPPORTED_PERSONALITIES 2
238#define PERSONALITY0_WORDSIZE 8
239#define PERSONALITY1_WORDSIZE 4
240#endif
241
242#ifdef ARM
243#undef SUPPORTED_PERSONALITIES
244#define SUPPORTED_PERSONALITIES 2
245#define PERSONALITY0_WORDSIZE 4
246#define PERSONALITY1_WORDSIZE 4
247#endif
248
249#ifdef SVR4
250#ifdef HAVE_MP_PROCFS
251extern int mp_ioctl (int f, int c, void *a, int s);
252#define IOCTL(f,c,a)	mp_ioctl (f, c, a, sizeof *a)
253#define IOCTL_STATUS(t) \
254	 pread (t->pfd_stat, &t->status, sizeof t->status, 0)
255#define IOCTL_WSTOP(t)						\
256	(IOCTL (t->pfd, PCWSTOP, (char *)NULL) < 0 ? -1 :		\
257	 IOCTL_STATUS (t))
258#define PR_WHY		pr_lwp.pr_why
259#define PR_WHAT		pr_lwp.pr_what
260#define PR_REG		pr_lwp.pr_context.uc_mcontext.gregs
261#define PR_FLAGS	pr_lwp.pr_flags
262#define PR_SYSCALL	pr_lwp.pr_syscall
263#define PR_INFO		pr_lwp.pr_info
264#define PIOCSTIP	PCSTOP
265#define PIOCSET		PCSET
266#define PIOCRESET	PCRESET
267#define PIOCSTRACE	PCSTRACE
268#define PIOCSFAULT	PCSFAULT
269#define PIOCWSTOP	PCWSTOP
270#define PIOCSTOP	PCSTOP
271#define PIOCSENTRY	PCSENTRY
272#define PIOCSEXIT	PCSEXIT
273#define PIOCRUN		PCRUN
274#else
275#define IOCTL		ioctl
276#define IOCTL_STATUS(t)	ioctl (t->pfd, PIOCSTATUS, &t->status)
277#define IOCTL_WSTOP(t)	ioctl (t->pfd, PIOCWSTOP, &t->status)
278#define PR_WHY		pr_why
279#define PR_WHAT		pr_what
280#define PR_REG		pr_reg
281#define PR_FLAGS	pr_flags
282#define PR_SYSCALL	pr_syscall
283#define PR_INFO		pr_info
284#endif
285#endif
286#ifdef FREEBSD
287#define IOCTL		ioctl
288#define IOCTL_STATUS(t)	ioctl (t->pfd, PIOCSTATUS, &t->status)
289#define IOCTL_WSTOP(t)	ioctl (t->pfd, PIOCWAIT, &t->status)
290#define PIOCRUN         PIOCCONT
291#define PIOCWSTOP       PIOCWAIT
292#define PR_WHY		why
293#define PR_WHAT		val
294#define PR_FLAGS	state
295/* from /usr/src/sys/miscfs/procfs/procfs_vnops.c,
296   status.state = 0 for running, 1 for stopped */
297#define PR_ASLEEP	1
298#define PR_SYSENTRY     S_SCE
299#define PR_SYSEXIT      S_SCX
300#define PR_SIGNALLED    S_SIG
301#define PR_FAULTED      S_CORE
302#endif
303
304/* Trace Control Block */
305struct tcb {
306	short flags;		/* See below for TCB_ values */
307	int pid;		/* Process Id of this entry */
308	long scno;		/* System call number */
309	int u_nargs;		/* System call arguments */
310	long u_arg[MAX_ARGS];	/* System call arguments */
311#if defined (LINUX_MIPSN32)
312	long long ext_arg[MAX_ARGS];	/* System call arguments */
313#endif
314	int u_error;		/* Error code */
315	long u_rval;		/* (first) return value */
316#ifdef HAVE_LONG_LONG
317	long long u_lrval;	/* long long return value */
318#endif
319	FILE *outf;		/* Output file for this process */
320	int curcol;		/* Output column for this process */
321	const char *auxstr;	/* Auxiliary info from syscall (see RVAL_STR) */
322	struct timeval stime;	/* System time usage as of last process wait */
323	struct timeval dtime;	/* Delta for system time usage */
324	struct timeval etime;	/* Syscall entry time */
325				/* Support for tracing forked processes */
326	struct tcb *parent;	/* Parent of this process */
327	int nchildren;		/* # of traced children */
328	int waitpid;		/* pid(s) this process is waiting for */
329	int nzombies;		/* # of formerly traced children now dead */
330#ifdef LINUX
331	int nclone_threads;	/* # of nchildren with CLONE_THREAD */
332	int nclone_detached;	/* # of nchildren with CLONE_DETACHED */
333	int nclone_waiting;	/* clone threads in wait4 (TCB_SUSPENDED) */
334#endif
335				/* (1st arg of wait4()) */
336	long baddr;		/* `Breakpoint' address */
337	long inst[2];		/* Instructions on above */
338	int pfd;		/* proc file descriptor */
339#ifdef SVR4
340#ifdef HAVE_MP_PROCFS
341	int pfd_stat;
342	int pfd_as;
343	pstatus_t status;
344#else
345	prstatus_t status;	/* procfs status structure */
346#endif
347#endif
348	int ptrace_errno;
349#ifdef FREEBSD
350	struct procfs_status status;
351	int pfd_reg;
352	int pfd_status;
353#endif
354};
355
356/* TCB flags */
357#define TCB_STARTUP	00001	/* We have just begun ptracing this process */
358#define TCB_INUSE	00002	/* This table entry is in use */
359#define TCB_INSYSCALL	00004	/* A system call is in progress */
360#define TCB_ATTACHED	00010	/* Process is not our own child */
361#define TCB_EXITING	00020	/* As far as we know, this process is exiting */
362#define TCB_SUSPENDED	00040	/* Process can not be allowed to resume just now */
363#define TCB_BPTSET	00100	/* "Breakpoint" set after fork(2) */
364#define TCB_SIGTRAPPED	00200	/* Process wanted to block SIGTRAP */
365#define TCB_FOLLOWFORK	00400	/* Process should have forks followed */
366#define TCB_REPRINT	01000	/* We should reprint this syscall on exit */
367#ifdef LINUX
368/* x86 does not need TCB_WAITEXECVE.
369 * It can detect execve's SIGTRAP by looking at eax/rax.
370 * See "stray syscall exit: eax = " message in syscall_fixup().
371 */
372# if defined(ALPHA) || defined(AVR32) || defined(SPARC) || defined(SPARC64) \
373  || defined(POWERPC) || defined(IA64) || defined(HPPA) \
374  || defined(SH) || defined(SH64) || defined(S390) || defined(S390X) \
375  || defined(ARM) || defined(MIPS) || defined(BFIN)
376#  define TCB_WAITEXECVE 02000	/* ignore SIGTRAP after exceve */
377# endif
378# define TCB_CLONE_DETACHED 04000 /* CLONE_DETACHED set in creating syscall */
379# define TCB_CLONE_THREAD  010000 /* CLONE_THREAD set in creating syscall */
380# define TCB_GROUP_EXITING 020000 /* TCB_EXITING was exit_group, not _exit */
381# include <sys/syscall.h>
382# ifndef __NR_exit_group
383# /* Hack: Most headers around are too old to have __NR_exit_group.  */
384#  ifdef ALPHA
385#   define __NR_exit_group 405
386#  elif defined I386
387#   define __NR_exit_group 252
388#  elif defined X86_64
389#   define __NR_exit_group 231
390#  elif defined IA64
391#   define __NR_exit_group 1236
392#  elif defined POWERPC
393#   define __NR_exit_group 234
394#  elif defined S390 || defined S390X
395#   define __NR_exit_group 248
396#  elif defined SPARC || defined SPARC64
397#   define __NR_exit_group 188
398#  elif defined M68K
399#   define __NR_exit_group 247
400#  endif /* ALPHA et al */
401# endif	/* !__NR_exit_group */
402#endif /* LINUX */
403
404/* qualifier flags */
405#define QUAL_TRACE	0001	/* this system call should be traced */
406#define QUAL_ABBREV	0002	/* abbreviate the structures of this syscall */
407#define QUAL_VERBOSE	0004	/* decode the structures of this syscall */
408#define QUAL_RAW	0010	/* print all args in hex for this syscall */
409#define QUAL_SIGNAL	0020	/* report events with this signal */
410#define QUAL_FAULT	0040	/* report events with this fault */
411#define QUAL_READ	0100	/* dump data read on this file descriptor */
412#define QUAL_WRITE	0200	/* dump data written to this file descriptor */
413
414#define entering(tcp)	(!((tcp)->flags & TCB_INSYSCALL))
415#define exiting(tcp)	((tcp)->flags & TCB_INSYSCALL)
416#define syserror(tcp)	((tcp)->u_error != 0)
417#define verbose(tcp)	(qual_flags[(tcp)->scno] & QUAL_VERBOSE)
418#define abbrev(tcp)	(qual_flags[(tcp)->scno] & QUAL_ABBREV)
419
420struct xlat {
421	int val;
422	char *str;
423};
424
425extern const struct xlat open_mode_flags[];
426extern const struct xlat addrfams[];
427extern const struct xlat struct_user_offsets[];
428extern const struct xlat open_access_modes[];
429
430/* Format of syscall return values */
431#define RVAL_DECIMAL	000	/* decimal format */
432#define RVAL_HEX	001	/* hex format */
433#define RVAL_OCTAL	002	/* octal format */
434#define RVAL_UDECIMAL	003	/* unsigned decimal format */
435#define RVAL_LDECIMAL	004	/* long decimal format */
436#define RVAL_LHEX	005	/* long hex format */
437#define RVAL_LOCTAL	006	/* long octal format */
438#define RVAL_LUDECIMAL	007	/* long unsigned decimal format */
439#define RVAL_MASK	007	/* mask for these values */
440
441#define RVAL_STR	010	/* Print `auxstr' field after return val */
442#define RVAL_NONE	020	/* Print nothing */
443
444#ifndef offsetof
445#define offsetof(type, member)	(((char *) &(((type *) NULL)->member)) - \
446				 ((char *) (type *) NULL))
447#endif /* !offsetof */
448
449/* get offset of member within a user struct */
450#define uoff(member)	offsetof(struct user, member)
451
452#define TRACE_FILE	001	/* Trace file-related syscalls. */
453#define TRACE_IPC	002	/* Trace IPC-related syscalls. */
454#define TRACE_NETWORK	004	/* Trace network-related syscalls. */
455#define TRACE_PROCESS	010	/* Trace process-related syscalls. */
456#define TRACE_SIGNAL	020	/* Trace signal-related syscalls. */
457#define TRACE_DESC	040	/* Trace file descriptor-related syscalls. */
458
459extern struct tcb **tcbtab;
460extern int *qual_flags;
461extern int debug, followfork;
462extern int dtime, cflag, xflag, qflag;
463extern int acolumn;
464extern unsigned int nprocs, tcbtabsize;
465extern int max_strlen;
466extern struct tcb *tcp_last;
467
468enum bitness_t { BITNESS_CURRENT = 0, BITNESS_32 };
469
470extern int set_personality(int personality);
471extern const char *xlookup(const struct xlat *, int);
472extern struct tcb *alloc_tcb(int, int);
473extern struct tcb *pid2tcb(int);
474extern void droptcb(struct tcb *);
475extern void expand_tcbtab(void);
476
477#define alloctcb(pid)	alloc_tcb((pid), 1)
478
479extern void set_sortby(char *);
480extern void set_overhead(int);
481extern void qualify(char *);
482extern int get_scno(struct tcb *);
483extern long known_scno(struct tcb *);
484extern long do_ptrace(int request, struct tcb *tcp, void *addr, void *data);
485extern int ptrace_restart(int request, struct tcb *tcp, int sig);
486extern int trace_syscall(struct tcb *);
487extern int count_syscall(struct tcb *, struct timeval *);
488extern void printxval(const struct xlat *, int, const char *);
489extern int printargs(struct tcb *);
490extern int addflags(const struct xlat *, int);
491extern int printflags(const struct xlat *, int, const char *);
492extern const char *sprintflags(const char *, const struct xlat *, int);
493extern int umoven(struct tcb *, long, int, char *);
494extern int umovestr(struct tcb *, long, int, char *);
495extern int upeek(struct tcb *, long, long *);
496extern void dumpiov(struct tcb *, int, long);
497extern void dumpstr(struct tcb *, long, int);
498extern void printstr(struct tcb *, long, int);
499extern void printnum(struct tcb *, long, char *);
500extern void printnum_int(struct tcb *, long, char *);
501extern void printpath(struct tcb *, long);
502extern void printpathn(struct tcb *, long, int);
503extern void printtv_bitness(struct tcb *, long, enum bitness_t, int);
504extern void sprinttv(struct tcb *, long, enum bitness_t, char *);
505extern void print_timespec(struct tcb *, long);
506extern void sprint_timespec(char *, struct tcb *, long);
507#ifdef HAVE_SIGINFO_T
508extern void printsiginfo(siginfo_t *, int);
509#endif
510extern void printsock(struct tcb *, long, int);
511extern void print_sock_optmgmt(struct tcb *, long, int);
512extern void printrusage(struct tcb *, long);
513extern void printuid(const char *, unsigned long);
514extern int clearbpt(struct tcb *);
515extern int setbpt(struct tcb *);
516extern int sigishandled(struct tcb *, int);
517extern void printcall(struct tcb *);
518extern const char *signame(int);
519extern void print_sigset(struct tcb *, long, int);
520extern void printsignal(int);
521extern void printleader(struct tcb *);
522extern void printtrailer(void);
523extern void tabto(int);
524extern void call_summary(FILE *);
525extern void tprint_iov(struct tcb *, unsigned long, unsigned long);
526extern void tprint_open_modes(mode_t);
527extern const char *sprint_open_modes(mode_t);
528extern int is_restart_error(struct tcb *);
529
530extern int change_syscall(struct tcb *, int);
531#ifdef LINUX
532extern int internal_clone(struct tcb *);
533#endif
534extern int internal_fork(struct tcb *);
535extern int internal_exec(struct tcb *);
536extern int internal_wait(struct tcb *, int);
537extern int internal_exit(struct tcb *);
538
539extern const struct ioctlent *ioctl_lookup(long);
540extern const struct ioctlent *ioctl_next_match(const struct ioctlent *);
541extern int ioctl_decode(struct tcb *, long, long);
542extern int term_ioctl(struct tcb *, long, long);
543extern int sock_ioctl(struct tcb *, long, long);
544extern int proc_ioctl(struct tcb *, int, int);
545extern int stream_ioctl(struct tcb *, int, int);
546#ifdef LINUX
547extern int rtc_ioctl(struct tcb *, long, long);
548extern int scsi_ioctl(struct tcb *, long, long);
549#endif
550
551extern void tv_tv(struct timeval *, int, int);
552extern int tv_nz(struct timeval *);
553extern int tv_cmp(struct timeval *, struct timeval *);
554extern double tv_float(struct timeval *);
555extern void tv_add(struct timeval *, struct timeval *, struct timeval *);
556extern void tv_sub(struct timeval *, struct timeval *, struct timeval *);
557extern void tv_mul(struct timeval *, struct timeval *, int);
558extern void tv_div(struct timeval *, struct timeval *, int);
559
560#ifdef SUNOS4
561extern int fixvfork(struct tcb *);
562#endif
563#if !(defined(LINUX) && !defined(SPARC) && !defined(SPARC64) && !defined(IA64))
564extern long getrval2(struct tcb *);
565#endif
566#ifdef USE_PROCFS
567extern int proc_open(struct tcb *tcp, int attaching);
568#endif
569
570#define umove(pid, addr, objp)	\
571	umoven((pid), (addr), sizeof *(objp), (char *) (objp))
572
573#define printtv(tcp, addr)	\
574	printtv_bitness((tcp), (addr), BITNESS_CURRENT, 0)
575#define printtv_special(tcp, addr)	\
576	printtv_bitness((tcp), (addr), BITNESS_CURRENT, 1)
577
578#ifdef __GNUC__
579extern void tprintf(const char *fmt, ...)
580	__attribute__ ((format (printf, 1, 2)));
581#else
582extern void tprintf(const char *fmt, ...);
583#endif
584
585#ifndef HAVE_STRERROR
586const char *strerror(int);
587#endif
588#ifndef HAVE_STRSIGNAL
589const char *strsignal(int);
590#endif
591
592extern int current_personality;
593extern const int personality_wordsize[];
594
595struct sysent {
596	int	nargs;
597	int	sys_flags;
598	int	(*sys_func)();
599	const char *sys_name;
600	long	native_scno;	/* Match against SYS_* constants.  */
601};
602
603extern const struct sysent *sysent;
604extern int nsyscalls;
605
606extern const char *const *errnoent;
607extern int nerrnos;
608
609struct ioctlent {
610	const char *doth;
611	const char *symbol;
612	unsigned long code;
613};
614
615extern const struct ioctlent *ioctlent;
616extern int nioctlents;
617
618extern const char *const *signalent;
619extern int nsignals;
620
621extern const struct ioctlent ioctlent0[];
622extern const int nioctlents0;
623extern const char *const signalent0[];
624extern const int nsignals0;
625
626#if SUPPORTED_PERSONALITIES >= 2
627extern const struct ioctlent ioctlent1[];
628extern const int nioctlents1;
629extern const char *const signalent1[];
630extern const int nsignals1;
631#endif /* SUPPORTED_PERSONALITIES >= 2 */
632
633#if SUPPORTED_PERSONALITIES >= 3
634extern const struct ioctlent ioctlent2[];
635extern const int nioctlents2;
636extern const char *const signalent2[];
637extern const int nsignals2;
638#endif /* SUPPORTED_PERSONALITIES >= 3 */
639
640#if HAVE_LONG_LONG
641
642/* _l refers to the lower numbered u_arg,
643 * _h refers to the higher numbered u_arg
644 */
645
646#if HAVE_LITTLE_ENDIAN_LONG_LONG
647#define LONG_LONG(_l,_h) \
648    ((long long)((unsigned long long)(unsigned)(_l) | ((unsigned long long)(_h)<<32)))
649#else
650#define LONG_LONG(_l,_h) \
651    ((long long)((unsigned long long)(unsigned)(_h) | ((unsigned long long)(_l)<<32)))
652#endif
653
654extern int printllval(struct tcb *, const char *, int);
655#endif
656
657#ifdef IA64
658extern long ia32;
659#endif
660
661extern int not_failing_only;
662