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>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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.
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.
40 #include <sys/types.h>
47 /* Open-coding isprint(ch) et al proved more efficient than calling
48 * generalized libc interface. We don't *want* to do non-ASCII anyway.
50 /* #include <ctype.h> */
56 #include <sys/syscall.h>
59 const char *strerror(int);
62 /* Some libc have stpcpy, some don't. Sigh...
63 * Roll our private implementation...
66 #define stpcpy strace_stpcpy
67 extern char *stpcpy(char *dst, const char *src);
70 #if defined __GNUC__ && defined __GNUC_MINOR__
71 # define GNUC_PREREQ(maj, min) \
72 ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
74 # define __attribute__(x) /* empty */
75 # define GNUC_PREREQ(maj, min) 0
79 # define ATTRIBUTE_NORETURN __attribute__((__noreturn__))
81 # define ATTRIBUTE_NORETURN /* empty */
85 # define ATTRIBUTE_FORMAT(args) __attribute__((__format__ args))
86 # define ATTRIBUTE_ALIGNED(arg) __attribute__((__aligned__(arg)))
87 # define ATTRIBUTE_PACKED __attribute__((__packed__))
89 # define ATTRIBUTE_FORMAT(args) /* empty */
90 # define ATTRIBUTE_ALIGNED(arg) /* empty */
91 # define ATTRIBUTE_PACKED /* empty */
95 # define ATTRIBUTE_MALLOC __attribute__((__malloc__))
97 # define ATTRIBUTE_MALLOC /* empty */
100 #if GNUC_PREREQ(3, 1)
101 # define ATTRIBUTE_NOINLINE __attribute__((__noinline__))
103 # define ATTRIBUTE_NOINLINE /* empty */
106 #if GNUC_PREREQ(4, 3)
107 # define ATTRIBUTE_ALLOC_SIZE(args) __attribute__((__alloc_size__ args))
109 # define ATTRIBUTE_ALLOC_SIZE(args) /* empty */
113 # define offsetof(type, member) \
114 (((char *) &(((type *) NULL)->member)) - ((char *) (type *) NULL))
117 #define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
121 # define MAX(a, b) (((a) > (b)) ? (a) : (b))
124 # define MIN(a, b) (((a) < (b)) ? (a) : (b))
126 #define CLAMP(val, min, max) MIN(MAX(min, val), max)
128 /* Glibc has an efficient macro for sigemptyset
129 * (it just does one or two assignments of 0 to internal vector of longs).
131 #if defined(__GLIBC__) && defined(__sigemptyset) && !defined(sigemptyset)
132 # define sigemptyset __sigemptyset
135 /* Configuration section */
136 #ifndef DEFAULT_STRLEN
137 /* default maximum # of bytes printed in `printstr', change with -s switch */
138 # define DEFAULT_STRLEN 32
140 #ifndef DEFAULT_ACOLUMN
141 # define DEFAULT_ACOLUMN 40 /* default alignment column for results */
144 * Maximum number of args to a syscall.
146 * Make sure that all entries in all syscallent.h files have nargs <= MAX_ARGS!
147 * linux/<ARCH>/syscallent*.h:
148 * all have nargs <= 6 except mips o32 which has nargs <= 7.
151 # ifdef LINUX_MIPSO32
157 /* default sorting method for call profiling */
158 #ifndef DEFAULT_SORTBY
159 # define DEFAULT_SORTBY "time"
162 * Experimental code using PTRACE_SEIZE can be enabled here.
163 * This needs Linux kernel 3.4.x or later to work.
166 /* To force NOMMU build, set to 1 */
167 #define NOMMU_SYSTEM 0
169 * Set to 1 to use speed-optimized vfprintf implementation.
170 * It results in strace using about 5% less CPU in user space
171 * (compared to glibc version).
172 * But strace spends a lot of time in kernel space,
173 * so overall it does not appear to be a significant win.
174 * Thus disabled by default.
176 #define USE_CUSTOM_PRINTF 0
179 # define ERESTARTSYS 512
181 #ifndef ERESTARTNOINTR
182 # define ERESTARTNOINTR 513
184 #ifndef ERESTARTNOHAND
185 # define ERESTARTNOHAND 514
187 #ifndef ERESTART_RESTARTBLOCK
188 # define ERESTART_RESTARTBLOCK 516
191 #if defined(SPARC) || defined(SPARC64)
192 # define PERSONALITY0_WORDSIZE 4
193 # if defined(SPARC64)
194 # define SUPPORTED_PERSONALITIES 2
195 # define PERSONALITY1_WORDSIZE 8
200 # define SUPPORTED_PERSONALITIES 3
201 # define PERSONALITY0_WORDSIZE 8
202 # define PERSONALITY1_WORDSIZE 4
203 # define PERSONALITY2_WORDSIZE 4
207 # define SUPPORTED_PERSONALITIES 2
208 # define PERSONALITY0_WORDSIZE 4
209 # define PERSONALITY1_WORDSIZE 4
213 /* one personality */
217 /* The existing ARM personality, then AArch64 */
218 # define SUPPORTED_PERSONALITIES 2
219 # define PERSONALITY0_WORDSIZE 4
220 # define PERSONALITY1_WORDSIZE 8
221 # define DEFAULT_PERSONALITY 1
225 # define SUPPORTED_PERSONALITIES 2
226 # define PERSONALITY0_WORDSIZE 8
227 # define PERSONALITY1_WORDSIZE 4
231 # define SUPPORTED_PERSONALITIES 2
232 # define PERSONALITY0_WORDSIZE 8
233 # define PERSONALITY1_WORDSIZE 4
235 # define DEFAULT_PERSONALITY 1
239 #ifndef SUPPORTED_PERSONALITIES
240 # define SUPPORTED_PERSONALITIES 1
242 #ifndef DEFAULT_PERSONALITY
243 # define DEFAULT_PERSONALITY 0
245 #ifndef PERSONALITY0_WORDSIZE
246 # define PERSONALITY0_WORDSIZE SIZEOF_LONG
249 typedef struct sysent {
253 const char *sys_name;
256 typedef struct ioctlent {
261 /* Trace Control Block */
263 int flags; /* See below for TCB_ values */
264 int pid; /* If 0, this tcb is free */
265 int qual_flg; /* qual_flags[scno] or DEFAULT_QUAL_FLAGS + RAW */
266 int u_error; /* Error code */
267 long scno; /* System call number */
268 long u_arg[MAX_ARGS]; /* System call arguments */
269 #if defined(LINUX_MIPSN32) || defined(X32)
270 long long ext_arg[MAX_ARGS];
271 long long u_lrval; /* long long return value */
273 long u_rval; /* Return value */
274 #if SUPPORTED_PERSONALITIES > 1
275 unsigned int currpers; /* Personality at the time of scno update */
277 int curcol; /* Output column for this process */
278 FILE *outf; /* Output file for this process */
279 const char *auxstr; /* Auxiliary info from syscall (see RVAL_STR) */
280 const struct_sysent *s_ent; /* sysent[scno] or dummy struct for bad scno */
281 const struct_sysent *s_prev_ent; /* for "resuming interrupted SYSCALL" msg */
282 struct timeval stime; /* System time usage as of last process wait */
283 struct timeval dtime; /* Delta for system time usage */
284 struct timeval etime; /* Syscall entry time */
287 struct UPT_info* libunwind_ui;
288 struct mmap_cache_t* mmap_cache;
289 unsigned int mmap_cache_size;
290 unsigned int mmap_cache_generation;
291 struct queue_t* queue;
296 /* We have attached to this process, but did not see it stopping yet */
297 #define TCB_STARTUP 0x01
298 #define TCB_IGNORE_ONE_SIGSTOP 0x02 /* Next SIGSTOP is to be ignored */
300 * Are we in system call entry or in syscall exit?
302 * This bit is set after all syscall entry processing is done.
303 * Therefore, this bit will be set when next ptrace stop occurs,
304 * which should be syscall exit stop. Other stops which are possible
305 * directly after syscall entry (death, ptrace event stop)
306 * are simpler and handled without calling trace_syscall(), therefore
307 * the places where TCB_INSYSCALL can be set but we aren't in syscall stop
308 * are limited to trace(), this condition is never observed in trace_syscall()
310 * The bit is cleared after all syscall exit processing is done.
312 * Use entering(tcp) / exiting(tcp) to check this bit to make code more readable.
314 #define TCB_INSYSCALL 0x04
315 #define TCB_ATTACHED 0x08 /* We attached to it already */
316 #define TCB_REPRINT 0x10 /* We should reprint this syscall on exit */
317 #define TCB_FILTERED 0x20 /* This system call has been filtered out */
319 /* qualifier flags */
320 #define QUAL_TRACE 0x001 /* this system call should be traced */
321 #define QUAL_ABBREV 0x002 /* abbreviate the structures of this syscall */
322 #define QUAL_VERBOSE 0x004 /* decode the structures of this syscall */
323 #define QUAL_RAW 0x008 /* print all args in hex for this syscall */
324 #define QUAL_SIGNAL 0x010 /* report events with this signal */
325 #define QUAL_READ 0x020 /* dump data read on this file descriptor */
326 #define QUAL_WRITE 0x040 /* dump data written to this file descriptor */
327 typedef uint8_t qualbits_t;
328 #define UNDEFINED_SCNO 0x100 /* Used only in tcp->qual_flg */
330 #define DEFAULT_QUAL_FLAGS (QUAL_TRACE | QUAL_ABBREV | QUAL_VERBOSE)
332 #define entering(tcp) (!((tcp)->flags & TCB_INSYSCALL))
333 #define exiting(tcp) ((tcp)->flags & TCB_INSYSCALL)
334 #define syserror(tcp) ((tcp)->u_error != 0)
335 #define verbose(tcp) ((tcp)->qual_flg & QUAL_VERBOSE)
336 #define abbrev(tcp) ((tcp)->qual_flg & QUAL_ABBREV)
337 #define filtered(tcp) ((tcp)->flags & TCB_FILTERED)
343 #define XLAT(x) { x, #x }
344 #define XLAT_END { 0, NULL }
346 extern const struct xlat addrfams[];
347 extern const struct xlat at_flags[];
348 extern const struct xlat open_access_modes[];
349 extern const struct xlat open_mode_flags[];
350 extern const struct xlat whence_codes[];
352 /* Format of syscall return values */
353 #define RVAL_DECIMAL 000 /* decimal format */
354 #define RVAL_HEX 001 /* hex format */
355 #define RVAL_OCTAL 002 /* octal format */
356 #define RVAL_UDECIMAL 003 /* unsigned decimal format */
357 #if defined(LINUX_MIPSN32) || defined(X32)
358 # if 0 /* unused so far */
359 # define RVAL_LDECIMAL 004 /* long decimal format */
360 # define RVAL_LHEX 005 /* long hex format */
361 # define RVAL_LOCTAL 006 /* long octal format */
363 # define RVAL_LUDECIMAL 007 /* long unsigned decimal format */
365 #define RVAL_FD 010 /* file descriptor */
366 #define RVAL_MASK 017 /* mask for these values */
368 #define RVAL_STR 020 /* Print `auxstr' field after return val */
369 #define RVAL_NONE 040 /* Print nothing */
371 #define TRACE_FILE 001 /* Trace file-related syscalls. */
372 #define TRACE_IPC 002 /* Trace IPC-related syscalls. */
373 #define TRACE_NETWORK 004 /* Trace network-related syscalls. */
374 #define TRACE_PROCESS 010 /* Trace process-related syscalls. */
375 #define TRACE_SIGNAL 020 /* Trace signal-related syscalls. */
376 #define TRACE_DESC 040 /* Trace file descriptor-related syscalls. */
377 #define TRACE_MEMORY 0100 /* Trace memory mapping-related syscalls. */
378 #define SYSCALL_NEVER_FAILS 0200 /* Syscall is always successful. */
379 #define STACKTRACE_INVALIDATE_CACHE 0400 /* Trigger proc/maps cache updating */
380 #define STACKTRACE_CAPTURE_ON_ENTER 01000 /* Capture stacktrace on "entering" stage */
381 #define TRACE_INDIRECT_SUBCALL 02000 /* Syscall is an indirect socket/ipc subcall. */
383 #if defined(ARM) || defined(AARCH64) \
384 || defined(I386) || defined(X32) || defined(X86_64) \
388 || defined(MICROBLAZE) \
390 || defined(SH) || defined(SH64) \
391 || defined(SPARC) || defined(SPARC64) \
393 # define NEED_UID16_PARSERS 1
395 # define NEED_UID16_PARSERS 0
403 extern cflag_t cflag;
404 extern bool debug_flag;
407 extern bool count_wallclock;
408 extern unsigned int qflag;
409 extern bool not_failing_only;
410 extern unsigned int show_fd_path;
411 extern bool hide_log_until_execve;
412 /* are we filtering traces based on paths? */
413 extern const char **paths_selected;
414 #define tracing_paths (paths_selected != NULL)
415 extern unsigned xflag;
416 extern unsigned followfork;
418 /* if this is true do the stack trace for every system call */
419 extern bool stack_trace_enabled;
421 extern unsigned ptrace_setoptions;
422 extern unsigned max_strlen;
423 extern unsigned os_release;
424 #undef KERNEL_VERSION
425 #define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
427 enum bitness_t { BITNESS_CURRENT = 0, BITNESS_32 };
429 void error_msg(const char *fmt, ...) ATTRIBUTE_FORMAT((printf, 1, 2));
430 void perror_msg(const char *fmt, ...) ATTRIBUTE_FORMAT((printf, 1, 2));
431 void error_msg_and_die(const char *fmt, ...)
432 ATTRIBUTE_FORMAT((printf, 1, 2)) ATTRIBUTE_NORETURN;
433 void perror_msg_and_die(const char *fmt, ...)
434 ATTRIBUTE_FORMAT((printf, 1, 2)) ATTRIBUTE_NORETURN;
435 void die_out_of_memory(void) ATTRIBUTE_NORETURN;
437 void *xmalloc(size_t size) ATTRIBUTE_MALLOC ATTRIBUTE_ALLOC_SIZE((1));
438 void *xcalloc(size_t nmemb, size_t size)
439 ATTRIBUTE_MALLOC ATTRIBUTE_ALLOC_SIZE((1, 2));
440 void *xreallocarray(void *ptr, size_t nmemb, size_t size)
441 ATTRIBUTE_ALLOC_SIZE((2, 3));
442 char *xstrdup(const char *str) ATTRIBUTE_MALLOC;
444 #if USE_CUSTOM_PRINTF
446 * See comment in vsprintf.c for allowed formats.
447 * Short version: %h[h]u, %zu, %tu are not allowed, use %[l[l]]u.
449 int strace_vfprintf(FILE *fp, const char *fmt, va_list args);
451 # define strace_vfprintf vfprintf
454 extern void set_sortby(const char *);
455 extern void set_overhead(int);
456 extern void qualify(const char *);
457 extern void print_pc(struct tcb *);
458 extern int trace_syscall(struct tcb *);
459 extern void count_syscall(struct tcb *, const struct timeval *);
460 extern void call_summary(FILE *);
462 extern void clear_regs(void);
463 extern void get_regs(pid_t pid);
464 extern int get_scno(struct tcb *tcp);
466 extern int umoven(struct tcb *, long, unsigned int, void *);
467 #define umove(pid, addr, objp) \
468 umoven((pid), (addr), sizeof(*(objp)), (void *) (objp))
469 extern int umovestr(struct tcb *, long, unsigned int, char *);
470 extern int upeek(int pid, long, long *);
472 #if defined ALPHA || defined IA64 || defined MIPS \
473 || defined SH || defined SPARC || defined SPARC64
474 # define HAVE_GETRVAL2
475 extern long getrval2(struct tcb *);
477 # undef HAVE_GETRVAL2
480 extern const char *signame(const int);
481 extern void pathtrace_select(const char *);
482 extern int pathtrace_match(struct tcb *);
483 extern int getfdpath(struct tcb *, int, char *, unsigned);
485 extern const char *xlookup(const struct xlat *, const unsigned int);
486 extern const char *xlat_search(const struct xlat *, const size_t, const unsigned int);
488 extern unsigned long get_pagesize(void);
489 extern int string_to_uint(const char *str);
490 extern int next_set_bit(const void *bit_array, unsigned cur_bit, unsigned size_bits);
492 #define QUOTE_0_TERMINATED 0x01
493 #define QUOTE_OMIT_LEADING_TRAILING_QUOTES 0x02
495 extern int print_quoted_string(const char *, unsigned int, unsigned int);
497 /* a refers to the lower numbered u_arg,
498 * b refers to the higher numbered u_arg
500 #ifdef HAVE_LITTLE_ENDIAN_LONG_LONG
501 # define LONG_LONG(a,b) \
502 ((long long)((unsigned long long)(unsigned)(a) | ((unsigned long long)(b)<<32)))
504 # define LONG_LONG(a,b) \
505 ((long long)((unsigned long long)(unsigned)(b) | ((unsigned long long)(a)<<32)))
507 extern int getllval(struct tcb *, unsigned long long *, int);
508 extern int printllval(struct tcb *, const char *, int)
509 ATTRIBUTE_FORMAT((printf, 2, 0));
511 extern void printxval(const struct xlat *, const unsigned int, const char *);
512 extern int printargs(struct tcb *);
513 extern int printargs_lu(struct tcb *);
514 extern int printargs_ld(struct tcb *);
515 extern void addflags(const struct xlat *, int);
516 extern int printflags(const struct xlat *, int, const char *);
517 extern const char *sprintflags(const char *, const struct xlat *, int);
518 extern const char *sprintmode(int);
519 extern const char *sprinttime(time_t);
520 extern void dumpiov_in_msghdr(struct tcb *, long);
521 extern void dumpiov_in_mmsghdr(struct tcb *, long);
522 extern void dumpiov(struct tcb *, int, long);
523 extern void dumpstr(struct tcb *, long, int);
524 extern void printstr(struct tcb *, long, long);
525 extern void printnum_int(struct tcb *, long, const char *)
526 ATTRIBUTE_FORMAT((printf, 3, 0));
527 extern void printnum_long(struct tcb *, long, const char *)
528 ATTRIBUTE_FORMAT((printf, 3, 0));
529 extern void printpath(struct tcb *, long);
530 extern void printpathn(struct tcb *, long, unsigned int);
531 #define TIMESPEC_TEXT_BUFSIZE (sizeof(long)*3 * 2 + sizeof("{%u, %u}"))
532 #define TIMEVAL_TEXT_BUFSIZE TIMESPEC_TEXT_BUFSIZE
533 extern void printtv_bitness(struct tcb *, long, enum bitness_t, int);
534 #define printtv(tcp, addr) \
535 printtv_bitness((tcp), (addr), BITNESS_CURRENT, 0)
536 #define printtv_special(tcp, addr) \
537 printtv_bitness((tcp), (addr), BITNESS_CURRENT, 1)
538 extern char *sprinttv(char *, struct tcb *, long, enum bitness_t, int special);
539 extern void print_timespec(struct tcb *, long);
540 extern void sprint_timespec(char *, struct tcb *, long);
541 extern void printsiginfo(const siginfo_t *, bool);
542 extern void printsiginfo_at(struct tcb *tcp, long addr);
543 extern void printfd(struct tcb *, int);
544 extern bool print_sockaddr_by_inode(const unsigned long, const char *);
545 extern void print_dirfd(struct tcb *, int);
546 extern void printsock(struct tcb *, long, int);
547 extern void print_sock_optmgmt(struct tcb *, long, int);
548 extern void printrusage(struct tcb *, long);
550 extern void printrusage32(struct tcb *, long);
552 extern void printuid(const char *, const unsigned int);
553 extern void print_sigset_addr_len(struct tcb *, long, long);
554 extern const char *sprintsigmask_n(const char *, const void *, unsigned int);
555 #define tprintsigmask_addr(prefix, mask) \
556 tprints(sprintsigmask_n((prefix), (mask), sizeof(mask)))
557 extern void printsignal(int);
558 extern void tprint_iov(struct tcb *, unsigned long, unsigned long, int decode_iov);
559 extern void tprint_iov_upto(struct tcb *, unsigned long, unsigned long, int decode_iov, unsigned long);
560 extern void tprint_open_modes(int);
561 extern const char *sprint_open_modes(int);
562 extern void print_loff_t(struct tcb *, long);
563 extern void print_seccomp_filter(struct tcb *tcp, unsigned long);
565 extern int block_ioctl(struct tcb *, const unsigned int, long);
566 extern int evdev_ioctl(struct tcb *, const unsigned int, long);
567 extern int loop_ioctl(struct tcb *, const unsigned int, long);
568 extern int mtd_ioctl(struct tcb *, const unsigned int, long);
569 extern int ptp_ioctl(struct tcb *, const unsigned int, long);
570 extern int rtc_ioctl(struct tcb *, const unsigned int, long);
571 extern int scsi_ioctl(struct tcb *, const unsigned int, long);
572 extern int sock_ioctl(struct tcb *, const unsigned int, long);
573 extern int term_ioctl(struct tcb *, const unsigned int, long);
574 extern int ubi_ioctl(struct tcb *, const unsigned int, long);
575 extern int v4l2_ioctl(struct tcb *, const unsigned int, long);
577 extern int tv_nz(const struct timeval *);
578 extern int tv_cmp(const struct timeval *, const struct timeval *);
579 extern double tv_float(const struct timeval *);
580 extern void tv_add(struct timeval *, const struct timeval *, const struct timeval *);
581 extern void tv_sub(struct timeval *, const struct timeval *, const struct timeval *);
582 extern void tv_mul(struct timeval *, const struct timeval *, int);
583 extern void tv_div(struct timeval *, const struct timeval *, int);
586 extern void unwind_init(void);
587 extern void unwind_tcb_init(struct tcb *tcp);
588 extern void unwind_tcb_fin(struct tcb *tcp);
589 extern void unwind_cache_invalidate(struct tcb* tcp);
590 extern void unwind_print_stacktrace(struct tcb* tcp);
591 extern void unwind_capture_stacktrace(struct tcb* tcp);
594 /* Strace log generation machinery.
596 * printing_tcp: tcb which has incomplete line being printed right now.
597 * NULL if last line has been completed ('\n'-terminated).
598 * printleader(tcp) examines it, finishes incomplete line if needed,
599 * the sets it to tcp.
600 * line_ended() clears printing_tcp and resets ->curcol = 0.
601 * tcp->curcol == 0 check is also used to detect completeness
602 * of last line, since in -ff mode just checking printing_tcp for NULL
605 * If you change this code, test log generation in both -f and -ff modes
607 * strace -oLOG -f[f] test/threaded_execve
608 * strace -oLOG -f[f] test/sigkill_rain
609 * strace -oLOG -f[f] -p "`pidof web_browser`"
611 extern struct tcb *printing_tcp;
612 extern void printleader(struct tcb *);
613 extern void line_ended(void);
614 extern void tabto(void);
615 extern void tprintf(const char *fmt, ...) ATTRIBUTE_FORMAT((printf, 1, 2));
616 extern void tprints(const char *str);
618 #if SUPPORTED_PERSONALITIES > 1
619 extern void set_personality(int personality);
620 extern unsigned current_personality;
622 # define set_personality(personality) ((void)0)
623 # define current_personality 0
626 #if SUPPORTED_PERSONALITIES == 1
627 # define current_wordsize PERSONALITY0_WORDSIZE
629 # if SUPPORTED_PERSONALITIES == 2 && PERSONALITY0_WORDSIZE == PERSONALITY1_WORDSIZE
630 # define current_wordsize PERSONALITY0_WORDSIZE
632 extern unsigned current_wordsize;
636 /* In many, many places we play fast and loose and use
637 * tprintf("%d", (int) tcp->u_arg[N]) to print fds, pids etc.
638 * We probably need to use widen_to_long() instead:
640 #if SUPPORTED_PERSONALITIES > 1 && SIZEOF_LONG > 4
641 # define widen_to_long(v) (current_wordsize == 4 ? (long)(int32_t)(v) : (long)(v))
643 # define widen_to_long(v) ((long)(v))
646 extern const struct_sysent sysent0[];
647 extern const char *const errnoent0[];
648 extern const char *const signalent0[];
649 extern const struct_ioctlent ioctlent0[];
650 extern qualbits_t *qual_vec[SUPPORTED_PERSONALITIES];
651 #define qual_flags (qual_vec[current_personality])
652 #if SUPPORTED_PERSONALITIES > 1
653 extern const struct_sysent *sysent;
654 extern const char *const *errnoent;
655 extern const char *const *signalent;
656 extern const struct_ioctlent *ioctlent;
658 # define sysent sysent0
659 # define errnoent errnoent0
660 # define signalent signalent0
661 # define ioctlent ioctlent0
663 extern unsigned nsyscalls;
664 extern unsigned nerrnos;
665 extern unsigned nsignals;
666 extern unsigned nioctlents;
667 extern unsigned num_quals;
670 * If you need non-NULL sysent[scno].sys_func and sysent[scno].sys_name
672 #define SCNO_IS_VALID(scno) \
673 ((unsigned long)(scno) < nsyscalls && sysent[scno].sys_func)
675 /* Only ensures that sysent[scno] isn't out of range */
676 #define SCNO_IN_RANGE(scno) \
677 ((unsigned long)(scno) < nsyscalls)
679 #ifndef SYS_FUNC_NAME
680 # define SYS_FUNC_NAME(syscall_name) sys_ ## syscall_name
683 #define SYS_FUNC(syscall_name) int SYS_FUNC_NAME(syscall_name)(struct tcb *tcp)