-
Notifications
You must be signed in to change notification settings - Fork 9
/
defs.h
665 lines (613 loc) · 21.9 KB
/
defs.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
/*
* Copyright (c) 1991, 1992 Paul Kranenburg <[email protected]>
* Copyright (c) 1993 Branko Lankester <[email protected]>
* Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <[email protected]>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#ifdef _LARGEFILE64_SOURCE
/* This is the macro everything checks before using foo64 names. */
# ifndef _LFS64_LARGEFILE
# define _LFS64_LARGEFILE 1
# endif
#endif
#ifdef MIPS
# include <sgidefs.h>
#endif
#include <features.h>
#ifdef HAVE_STDBOOL_H
# include <stdbool.h>
#endif
#include <stdint.h>
#include <inttypes.h>
#include <sys/types.h>
#ifdef STDC_HEADERS
# include <stddef.h>
#endif
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include <errno.h>
#include <signal.h>
#include <time.h>
#include <sys/time.h>
#include <sys/syscall.h>
#ifndef HAVE_STRERROR
const char *strerror(int);
#endif
#ifndef HAVE_STPCPY
/* Some libc have stpcpy, some don't. Sigh...
* Roll our private implementation...
*/
#undef stpcpy
#define stpcpy strace_stpcpy
extern char *stpcpy(char *dst, const char *src);
#endif
#if !defined __GNUC__
# define __attribute__(x) /*nothing*/
#endif
#ifndef offsetof
# define offsetof(type, member) \
(((char *) &(((type *) NULL)->member)) - ((char *) (type *) NULL))
#endif
#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
/* Glibc has an efficient macro for sigemptyset
* (it just does one or two assignments of 0 to internal vector of longs).
*/
#if defined(__GLIBC__) && defined(__sigemptyset) && !defined(sigemptyset)
# define sigemptyset __sigemptyset
#endif
/* Configuration section */
#ifndef MAX_QUALS
# if defined(MIPS)
# define MAX_QUALS 7000 /* maximum number of syscalls, signals, etc. */
# else
# define MAX_QUALS 2048 /* maximum number of syscalls, signals, etc. */
# endif
#endif
#ifndef DEFAULT_STRLEN
/* default maximum # of bytes printed in `printstr', change with -s switch */
# define DEFAULT_STRLEN 32
#endif
#ifndef DEFAULT_ACOLUMN
# define DEFAULT_ACOLUMN 40 /* default alignment column for results */
#endif
/*
* Maximum number of args to a syscall.
*
* Make sure that all entries in all syscallent.h files have nargs <= MAX_ARGS!
* linux/<ARCH>/syscallent.h: all have nargs <= 6.
*/
#ifndef MAX_ARGS
# define MAX_ARGS 6
#endif
/* default sorting method for call profiling */
#ifndef DEFAULT_SORTBY
# define DEFAULT_SORTBY "time"
#endif
#if defined(SPARC) || defined(SPARC64)
# define LINUXSPARC
#endif
#if defined(MIPS) && _MIPS_SIM == _MIPS_SIM_ABI32
# define LINUX_MIPSO32
#endif
#if defined(MIPS) && _MIPS_SIM == _MIPS_SIM_NABI32
# define LINUX_MIPSN32
# define LINUX_MIPS64
#endif
#if defined(MIPS) && _MIPS_SIM == _MIPS_SIM_ABI64
# define LINUX_MIPSN64
# define LINUX_MIPS64
#endif
#if (defined(LINUXSPARC) || defined(X86_64) || defined(ARM) || defined(AVR32)) && defined(__GLIBC__)
# include <sys/ptrace.h>
#else
/* Work around awkward prototype in ptrace.h. */
# define ptrace xptrace
# include <sys/ptrace.h>
# undef ptrace
# ifdef POWERPC
# define __KERNEL__
# include <asm/ptrace.h>
# undef __KERNEL__
# endif
extern long ptrace(int, int, char *, long);
#endif
#if !defined(__GLIBC__)
# define PTRACE_PEEKUSER PTRACE_PEEKUSR
# define PTRACE_POKEUSER PTRACE_POKEUSR
#endif
#if defined(X86_64) || defined(X32) || defined(I386)
/* For struct pt_regs. x86 strace uses PTRACE_GETREGS.
* PTRACE_GETREGS returns registers in the layout of this struct.
*/
# include <asm/ptrace.h>
#endif
#ifdef ALPHA
# define REG_R0 0
# define REG_A0 16
# define REG_A3 19
# define REG_FP 30
# define REG_PC 64
#endif /* ALPHA */
#ifdef MIPS
# define REG_V0 2
# define REG_A0 4
# define REG_A3 7
# define REG_SP 29
# define REG_EPC 64
#endif /* MIPS */
#ifdef HPPA
# define PT_GR20 (20*4)
# define PT_GR26 (26*4)
# define PT_GR28 (28*4)
# define PT_IAOQ0 (106*4)
# define PT_IAOQ1 (107*4)
#endif /* HPPA */
#ifdef SH64
/* SH64 Linux - this code assumes the following kernel API for system calls:
PC Offset 0
System Call Offset 16 (actually, (syscall no.) | (0x1n << 16),
where n = no. of parameters.
Other regs Offset 24+
On entry: R2-7 = parameters 1-6 (as many as necessary)
On return: R9 = result. */
/* Offset for peeks of registers */
# define REG_OFFSET (24)
# define REG_GENERAL(x) (8*(x)+REG_OFFSET)
# define REG_PC (0*8)
# define REG_SYSCALL (2*8)
#endif /* SH64 */
#define SUPPORTED_PERSONALITIES 1
#define DEFAULT_PERSONALITY 0
#ifdef LINUXSPARC
/* Indexes into the pt_regs.u_reg[] array -- UREG_XX from kernel are all off
* by 1 and use Ix instead of Ox. These work for both 32 and 64 bit Linux. */
# define U_REG_G1 0
# define U_REG_O0 7
# define U_REG_O1 8
# define PERSONALITY0_WORDSIZE 4
# define PERSONALITY1_WORDSIZE 4
# undef SUPPORTED_PERSONALITIES
# if defined(SPARC64)
# include <asm/psrcompat.h>
# define SUPPORTED_PERSONALITIES 3
# define PERSONALITY2_WORDSIZE 8
# else
# include <asm/psr.h>
# define SUPPORTED_PERSONALITIES 2
# endif /* SPARC64 */
#endif /* LINUXSPARC */
#ifdef X86_64
# undef SUPPORTED_PERSONALITIES
# define SUPPORTED_PERSONALITIES 3
# define PERSONALITY0_WORDSIZE 8
# define PERSONALITY1_WORDSIZE 4
# define PERSONALITY2_WORDSIZE 4
#endif
#ifdef X32
# undef SUPPORTED_PERSONALITIES
# define SUPPORTED_PERSONALITIES 2
# define PERSONALITY0_WORDSIZE 4
# define PERSONALITY1_WORDSIZE 4
#endif
#ifdef ARM
# undef SUPPORTED_PERSONALITIES
# define SUPPORTED_PERSONALITIES 2
# define PERSONALITY0_WORDSIZE 4
# define PERSONALITY1_WORDSIZE 4
#endif
#ifdef POWERPC64
# undef SUPPORTED_PERSONALITIES
# define SUPPORTED_PERSONALITIES 2
# define PERSONALITY0_WORDSIZE 8
# define PERSONALITY1_WORDSIZE 4
#endif
#ifndef PERSONALITY0_WORDSIZE
# define PERSONALITY0_WORDSIZE (int)(sizeof(long))
#endif
#if !HAVE_DECL_PTRACE_SETOPTIONS
# define PTRACE_SETOPTIONS 0x4200
#endif
#if !HAVE_DECL_PTRACE_GETEVENTMSG
# define PTRACE_GETEVENTMSG 0x4201
#endif
#if !HAVE_DECL_PTRACE_GETSIGINFO
# define PTRACE_GETSIGINFO 0x4202
#endif
#if !HAVE_DECL_PTRACE_O_TRACESYSGOOD
# define PTRACE_O_TRACESYSGOOD 0x00000001
#endif
#if !HAVE_DECL_PTRACE_O_TRACEFORK
# define PTRACE_O_TRACEFORK 0x00000002
#endif
#if !HAVE_DECL_PTRACE_O_TRACEVFORK
# define PTRACE_O_TRACEVFORK 0x00000004
#endif
#if !HAVE_DECL_PTRACE_O_TRACECLONE
# define PTRACE_O_TRACECLONE 0x00000008
#endif
#if !HAVE_DECL_PTRACE_O_TRACEEXEC
# define PTRACE_O_TRACEEXEC 0x00000010
#endif
#if !HAVE_DECL_PTRACE_O_TRACEEXIT
# define PTRACE_O_TRACEEXIT 0x00000040
#endif
#if !HAVE_DECL_PTRACE_EVENT_FORK
# define PTRACE_EVENT_FORK 1
#endif
#if !HAVE_DECL_PTRACE_EVENT_VFORK
# define PTRACE_EVENT_VFORK 2
#endif
#if !HAVE_DECL_PTRACE_EVENT_CLONE
# define PTRACE_EVENT_CLONE 3
#endif
#if !HAVE_DECL_PTRACE_EVENT_EXEC
# define PTRACE_EVENT_EXEC 4
#endif
#if !HAVE_DECL_PTRACE_EVENT_VFORK_DONE
# define PTRACE_EVENT_VFORK_DONE 5
#endif
#if !HAVE_DECL_PTRACE_EVENT_EXIT
# define PTRACE_EVENT_EXIT 6
#endif
/* Experimental code using PTRACE_SEIZE can be enabled here.
* This needs Linux kernel 3.4.x or later to work.
*/
#define USE_SEIZE 1
#ifdef USE_SEIZE
# undef PTRACE_SEIZE
# define PTRACE_SEIZE 0x4206
# undef PTRACE_INTERRUPT
# define PTRACE_INTERRUPT 0x4207
# undef PTRACE_LISTEN
# define PTRACE_LISTEN 0x4208
# undef PTRACE_EVENT_STOP
# define PTRACE_EVENT_STOP 128
#endif
#if defined(I386)
extern struct pt_regs i386_regs;
#endif
#if defined(IA64)
extern long ia32;
#endif
/* Trace Control Block */
struct tcb {
int flags; /* See below for TCB_ values */
int pid; /* Process Id of this entry */
int u_nargs; /* System call argument count */
int u_error; /* Error code */
long scno; /* System call number */
long u_arg[MAX_ARGS]; /* System call arguments */
#if defined(LINUX_MIPSN32) || defined(X32)
long long ext_arg[MAX_ARGS]; /* System call arguments */
#endif
long u_rval; /* return value */
#if defined(LINUX_MIPSN32) || defined(X32)
long long u_lrval; /* long long return value */
#endif
#if SUPPORTED_PERSONALITIES > 1
int currpers; /* Personality at the time of scno update */
#endif
int curcol; /* Output column for this process */
FILE *outf; /* Output file for this process */
const char *auxstr; /* Auxiliary info from syscall (see RVAL_STR) */
struct timeval stime; /* System time usage as of last process wait */
struct timeval dtime; /* Delta for system time usage */
struct timeval etime; /* Syscall entry time */
/* Support for tracing forked processes: */
long inst[2]; /* Saved clone args (badly named) */
};
/* TCB flags */
#define TCB_INUSE 00001 /* This table entry is in use */
/* We have attached to this process, but did not see it stopping yet */
#define TCB_STARTUP 00002
#define TCB_IGNORE_ONE_SIGSTOP 00004 /* Next SIGSTOP is to be ignored */
/*
* Are we in system call entry or in syscall exit?
*
* This bit is set after all syscall entry processing is done.
* Therefore, this bit will be set when next ptrace stop occurs,
* which should be syscall exit stop. Other stops which are possible
* directly after syscall entry (death, ptrace event stop)
* are simpler and handled without calling trace_syscall(), therefore
* the places where TCB_INSYSCALL can be set but we aren't in syscall stop
* are limited to trace(), this condition is never observed in trace_syscall()
* and below.
* The bit is cleared after all syscall exit processing is done.
* User-generated SIGTRAPs and post-execve SIGTRAP make it necessary
* to be very careful and NOT set TCB_INSYSCALL bit when they are encountered.
* TCB_WAITEXECVE bit is used for this purpose (see below).
*
* Use entering(tcp) / exiting(tcp) to check this bit to make code more readable.
*/
#define TCB_INSYSCALL 00010
#define TCB_ATTACHED 00020 /* It is attached already */
/* Are we PROG from "strace PROG [ARGS]" invocation? */
#define TCB_STRACE_CHILD 0040
#define TCB_BPTSET 00100 /* "Breakpoint" set after fork(2) */
#define TCB_REPRINT 00200 /* We should reprint this syscall on exit */
#define TCB_FILTERED 00400 /* This system call has been filtered out */
/* x86 does not need TCB_WAITEXECVE.
* It can detect SIGTRAP by looking at eax/rax.
* See "not a syscall entry (eax = %ld)\n" message
* in syscall_fixup_on_sysenter().
*/
#if defined(ALPHA) || defined(AVR32) || defined(SPARC) || defined(SPARC64) \
|| defined(POWERPC) || defined(IA64) || defined(HPPA) \
|| defined(SH) || defined(SH64) || defined(S390) || defined(S390X) \
|| defined(ARM) || defined(MIPS) || defined(BFIN) || defined(TILE)
/* This tracee has entered into execve syscall. Expect post-execve SIGTRAP
* to happen. (When it is detected, tracee is continued and this bit is cleared.)
*/
# define TCB_WAITEXECVE 01000
#endif
/* qualifier flags */
#define QUAL_TRACE 0001 /* this system call should be traced */
#define QUAL_ABBREV 0002 /* abbreviate the structures of this syscall */
#define QUAL_VERBOSE 0004 /* decode the structures of this syscall */
#define QUAL_RAW 0010 /* print all args in hex for this syscall */
#define QUAL_SIGNAL 0020 /* report events with this signal */
#define QUAL_FAULT 0040 /* report events with this fault */
#define QUAL_READ 0100 /* dump data read on this file descriptor */
#define QUAL_WRITE 0200 /* dump data written to this file descriptor */
#define entering(tcp) (!((tcp)->flags & TCB_INSYSCALL))
#define exiting(tcp) ((tcp)->flags & TCB_INSYSCALL)
#define syserror(tcp) ((tcp)->u_error != 0)
#define verbose(tcp) (qual_flags[(tcp)->scno] & QUAL_VERBOSE)
#define abbrev(tcp) (qual_flags[(tcp)->scno] & QUAL_ABBREV)
#define filtered(tcp) ((tcp)->flags & TCB_FILTERED)
struct xlat {
int val;
const char *str;
};
extern const struct xlat open_mode_flags[];
extern const struct xlat addrfams[];
extern const struct xlat struct_user_offsets[];
extern const struct xlat open_access_modes[];
/* Format of syscall return values */
#define RVAL_DECIMAL 000 /* decimal format */
#define RVAL_HEX 001 /* hex format */
#define RVAL_OCTAL 002 /* octal format */
#define RVAL_UDECIMAL 003 /* unsigned decimal format */
#if defined(LINUX_MIPSN32) || defined(X32)
# if 0 /* unused so far */
# define RVAL_LDECIMAL 004 /* long decimal format */
# define RVAL_LHEX 005 /* long hex format */
# define RVAL_LOCTAL 006 /* long octal format */
# endif
# define RVAL_LUDECIMAL 007 /* long unsigned decimal format */
#endif
#define RVAL_MASK 007 /* mask for these values */
#define RVAL_STR 010 /* Print `auxstr' field after return val */
#define RVAL_NONE 020 /* Print nothing */
#define TRACE_FILE 001 /* Trace file-related syscalls. */
#define TRACE_IPC 002 /* Trace IPC-related syscalls. */
#define TRACE_NETWORK 004 /* Trace network-related syscalls. */
#define TRACE_PROCESS 010 /* Trace process-related syscalls. */
#define TRACE_SIGNAL 020 /* Trace signal-related syscalls. */
#define TRACE_DESC 040 /* Trace file descriptor-related syscalls. */
#define SYSCALL_NEVER_FAILS 0100 /* Syscall is always successful. */
typedef enum {
CFLAG_NONE = 0,
CFLAG_ONLY_STATS,
CFLAG_BOTH
} cflag_t;
extern cflag_t cflag;
extern int *qual_flags;
extern bool debug_flag;
extern bool Tflag;
extern bool qflag;
extern bool not_failing_only;
extern bool show_fd_path;
extern bool tracing_paths;
extern unsigned int xflag;
extern unsigned int followfork;
extern unsigned int ptrace_setoptions;
extern unsigned int max_strlen;
enum bitness_t { BITNESS_CURRENT = 0, BITNESS_32 };
void error_msg(const char *fmt, ...) __attribute__ ((format(printf, 1, 2)));
void perror_msg(const char *fmt, ...) __attribute__ ((format(printf, 1, 2)));
void error_msg_and_die(const char *fmt, ...) __attribute__ ((noreturn, format(printf, 1, 2)));
void perror_msg_and_die(const char *fmt, ...) __attribute__ ((noreturn, format(printf, 1, 2)));
void die_out_of_memory(void) __attribute__ ((noreturn));
#ifdef USE_CUSTOM_PRINTF
/*
* Speed-optimized vfprintf implementation.
* See comment in vsprintf.c for allowed formats.
* Short version: %h[h]u, %zu, %tu are not allowed, use %[l[l]]u.
*
* It results in strace using about 5% less CPU in user space
* (compared to glibc version).
* But strace spends a lot of time in kernel space,
* so overall it does not appear to be a significant win.
* Thus disabled by default.
*/
int strace_vfprintf(FILE *fp, const char *fmt, va_list args);
#else
# define strace_vfprintf vfprintf
#endif
extern void set_sortby(const char *);
extern void set_overhead(int);
extern void qualify(const char *);
extern int trace_syscall(struct tcb *);
extern void count_syscall(struct tcb *, struct timeval *);
extern void call_summary(FILE *);
extern int umoven(struct tcb *, long, int, char *);
#define umove(pid, addr, objp) \
umoven((pid), (addr), sizeof(*(objp)), (char *) (objp))
extern int umovestr(struct tcb *, long, int, char *);
extern int upeek(struct tcb *, long, long *);
#if defined(SPARC) || defined(SPARC64) || defined(IA64) || defined(SH)
extern long getrval2(struct tcb *);
#endif
/*
* On Linux, "setbpt" is a misnomer: we don't set a breakpoint
* (IOW: no poking in user's text segment),
* instead we change fork/vfork/clone into clone(CLONE_PTRACE).
* On newer kernels, we use PTRACE_O_TRACECLONE/TRACE[V]FORK instead.
*/
extern int setbpt(struct tcb *);
extern int clearbpt(struct tcb *);
extern const char *signame(int);
extern int is_restart_error(struct tcb *);
extern int pathtrace_select(const char *);
extern int pathtrace_match(struct tcb *);
extern const char *getfdpath(struct tcb *, int);
extern const char *xlookup(const struct xlat *, int);
extern int string_to_uint(const char *str);
extern int string_quote(const char *, char *, long, int);
#if HAVE_LONG_LONG
/* _l refers to the lower numbered u_arg,
* _h refers to the higher numbered u_arg
*/
# if HAVE_LITTLE_ENDIAN_LONG_LONG
# define LONG_LONG(_l,_h) \
((long long)((unsigned long long)(unsigned)(_l) | ((unsigned long long)(_h)<<32)))
# else
# define LONG_LONG(_l,_h) \
((long long)((unsigned long long)(unsigned)(_h) | ((unsigned long long)(_l)<<32)))
# endif
extern int printllval(struct tcb *, const char *, int);
#endif
extern void printxval(const struct xlat *, int, const char *);
extern int printargs(struct tcb *);
extern int printargs_lu(struct tcb *);
extern int printargs_ld(struct tcb *);
extern void addflags(const struct xlat *, int);
extern int printflags(const struct xlat *, int, const char *);
extern const char *sprintflags(const char *, const struct xlat *, int);
extern void dumpiov(struct tcb *, int, long);
extern void dumpstr(struct tcb *, long, int);
extern void printstr(struct tcb *, long, long);
extern void printnum(struct tcb *, long, const char *);
extern void printnum_int(struct tcb *, long, const char *);
extern void printpath(struct tcb *, long);
extern void printpathn(struct tcb *, long, int);
#define TIMESPEC_TEXT_BUFSIZE (sizeof(long)*3 * 2 + sizeof("{%u, %u}"))
#define TIMEVAL_TEXT_BUFSIZE TIMESPEC_TEXT_BUFSIZE
extern void printtv_bitness(struct tcb *, long, enum bitness_t, int);
#define printtv(tcp, addr) \
printtv_bitness((tcp), (addr), BITNESS_CURRENT, 0)
#define printtv_special(tcp, addr) \
printtv_bitness((tcp), (addr), BITNESS_CURRENT, 1)
extern char *sprinttv(char *, struct tcb *, long, enum bitness_t, int special);
extern void print_timespec(struct tcb *, long);
extern void sprint_timespec(char *, struct tcb *, long);
#ifdef HAVE_SIGINFO_T
extern void printsiginfo(siginfo_t *, int);
#endif
extern void printfd(struct tcb *, int);
extern void printsock(struct tcb *, long, int);
extern void print_sock_optmgmt(struct tcb *, long, int);
extern void printrusage(struct tcb *, long);
#ifdef ALPHA
extern void printrusage32(struct tcb *, long);
#endif
extern void printuid(const char *, unsigned long);
extern void printcall(struct tcb *);
extern void print_sigset(struct tcb *, long, int);
extern void printsignal(int);
extern void tprint_iov(struct tcb *, unsigned long, unsigned long, int decode_iov);
extern void tprint_iov_upto(struct tcb *, unsigned long, unsigned long, int decode_iov, unsigned long);
extern void tprint_open_modes(mode_t);
extern const char *sprint_open_modes(mode_t);
extern void print_loff_t(struct tcb *, long);
extern const struct ioctlent *ioctl_lookup(long);
extern const struct ioctlent *ioctl_next_match(const struct ioctlent *);
extern int ioctl_decode(struct tcb *, long, long);
extern int term_ioctl(struct tcb *, long, long);
extern int sock_ioctl(struct tcb *, long, long);
extern int proc_ioctl(struct tcb *, int, int);
extern int rtc_ioctl(struct tcb *, long, long);
extern int scsi_ioctl(struct tcb *, long, long);
extern int block_ioctl(struct tcb *, long, long);
extern int mtd_ioctl(struct tcb *, long, long);
extern int loop_ioctl(struct tcb *, long, long);
extern int tv_nz(struct timeval *);
extern int tv_cmp(struct timeval *, struct timeval *);
extern double tv_float(struct timeval *);
extern void tv_add(struct timeval *, struct timeval *, struct timeval *);
extern void tv_sub(struct timeval *, struct timeval *, struct timeval *);
extern void tv_mul(struct timeval *, struct timeval *, int);
extern void tv_div(struct timeval *, struct timeval *, int);
/* Strace log generation machinery.
*
* printing_tcp: tcb which has incomplete line being printed right now.
* NULL if last line has been completed ('\n'-terminated).
* printleader(tcp) examines it, finishes incomplete line if needed,
* the sets it to tcp.
* line_ended() clears printing_tcp and resets ->curcol = 0.
* tcp->curcol == 0 check is also used to detect completeness
* of last line, since in -ff mode just checking printing_tcp for NULL
* is not enough.
*
* If you change this code, test log generation in both -f and -ff modes
* using:
* strace -oLOG -f[f] test/threaded_execve
* strace -oLOG -f[f] test/sigkill_rain
* strace -oLOG -f[f] -p "`pidof web_browser`"
*/
extern struct tcb *printing_tcp;
extern void printleader(struct tcb *);
extern void line_ended(void);
extern void tabto(void);
extern void tprintf(const char *fmt, ...) __attribute__ ((format (printf, 1, 2)));
extern void tprints(const char *str);
#if SUPPORTED_PERSONALITIES > 1
extern void set_personality(int personality);
extern int current_personality;
extern const int personality_wordsize[];
# define current_wordsize (personality_wordsize[current_personality])
#else
# define set_personality(personality) ((void)0)
# define current_personality 0
# define current_wordsize PERSONALITY0_WORDSIZE
#endif
struct sysent {
unsigned nargs;
int sys_flags;
int (*sys_func)();
const char *sys_name;
};
struct ioctlent {
const char *doth;
const char *symbol;
unsigned long code;
};
extern const struct sysent *sysent;
extern unsigned nsyscalls;
extern const char *const *errnoent;
extern unsigned nerrnos;
extern const struct ioctlent *ioctlent;
extern unsigned nioctlents;
extern const char *const *signalent;
extern unsigned nsignals;
#define SCNO_IN_RANGE(scno) \
((unsigned long)(scno) < nsyscalls && sysent[scno].sys_func)