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> */
55 #include <sys/syscall.h>
57 #include "mpers_type.h"
58 #include "gcc_compat.h"
61 const char *strerror(int);
64 /* Some libc have stpcpy, some don't. Sigh...
65 * Roll our private implementation...
68 #define stpcpy strace_stpcpy
69 extern char *stpcpy(char *dst, const char *src);
73 # define offsetof(type, member) \
74 (((char *) &(((type *) NULL)->member)) - ((char *) (type *) NULL))
77 #define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
81 # define MAX(a, b) (((a) > (b)) ? (a) : (b))
84 # define MIN(a, b) (((a) < (b)) ? (a) : (b))
86 #define CLAMP(val, min, max) MIN(MAX(min, val), max)
88 /* Glibc has an efficient macro for sigemptyset
89 * (it just does one or two assignments of 0 to internal vector of longs).
91 #if defined(__GLIBC__) && defined(__sigemptyset) && !defined(sigemptyset)
92 # define sigemptyset __sigemptyset
95 /* Configuration section */
96 #ifndef DEFAULT_STRLEN
97 /* default maximum # of bytes printed in `printstr', change with -s switch */
98 # define DEFAULT_STRLEN 32
100 #ifndef DEFAULT_ACOLUMN
101 # define DEFAULT_ACOLUMN 40 /* default alignment column for results */
104 * Maximum number of args to a syscall.
106 * Make sure that all entries in all syscallent.h files have nargs <= MAX_ARGS!
107 * linux/<ARCH>/syscallent*.h:
108 * all have nargs <= 6 except mips o32 which has nargs <= 7.
111 # ifdef LINUX_MIPSO32
117 /* default sorting method for call profiling */
118 #ifndef DEFAULT_SORTBY
119 # define DEFAULT_SORTBY "time"
122 * Experimental code using PTRACE_SEIZE can be enabled here.
123 * This needs Linux kernel 3.4.x or later to work.
126 /* To force NOMMU build, set to 1 */
127 #define NOMMU_SYSTEM 0
129 * Set to 1 to use speed-optimized vfprintf implementation.
130 * It results in strace using about 5% less CPU in user space
131 * (compared to glibc version).
132 * But strace spends a lot of time in kernel space,
133 * so overall it does not appear to be a significant win.
134 * Thus disabled by default.
136 #define USE_CUSTOM_PRINTF 0
139 # define ERESTARTSYS 512
141 #ifndef ERESTARTNOINTR
142 # define ERESTARTNOINTR 513
144 #ifndef ERESTARTNOHAND
145 # define ERESTARTNOHAND 514
147 #ifndef ERESTART_RESTARTBLOCK
148 # define ERESTART_RESTARTBLOCK 516
151 #if defined(SPARC) || defined(SPARC64)
152 # define PERSONALITY0_WORDSIZE 4
153 # if defined(SPARC64)
154 # define SUPPORTED_PERSONALITIES 2
155 # define PERSONALITY1_WORDSIZE 8
156 # ifdef HAVE_M32_MPERS
157 # define PERSONALITY1_INCLUDE_FUNCS "m32_funcs.h"
158 # define PERSONALITY1_INCLUDE_PRINTERS_DECLS "m32_printer_decls.h"
159 # define PERSONALITY1_INCLUDE_PRINTERS_DEFS "m32_printer_defs.h"
165 # define SUPPORTED_PERSONALITIES 3
166 # define PERSONALITY0_WORDSIZE 8
167 # define PERSONALITY1_WORDSIZE 4
168 # define PERSONALITY2_WORDSIZE 4
169 # ifdef HAVE_M32_MPERS
170 # define PERSONALITY1_INCLUDE_FUNCS "m32_funcs.h"
171 # define PERSONALITY1_INCLUDE_PRINTERS_DECLS "m32_printer_decls.h"
172 # define PERSONALITY1_INCLUDE_PRINTERS_DEFS "m32_printer_defs.h"
174 # ifdef HAVE_MX32_MPERS
175 # define PERSONALITY2_INCLUDE_FUNCS "mx32_funcs.h"
176 # define PERSONALITY2_INCLUDE_PRINTERS_DECLS "mx32_printer_decls.h"
177 # define PERSONALITY2_INCLUDE_PRINTERS_DEFS "mx32_printer_defs.h"
182 # define SUPPORTED_PERSONALITIES 2
183 # define PERSONALITY0_WORDSIZE 4
184 # define PERSONALITY1_WORDSIZE 4
185 # ifdef HAVE_M32_MPERS
186 # define PERSONALITY1_INCLUDE_FUNCS "m32_funcs.h"
187 # define PERSONALITY1_INCLUDE_PRINTERS_DECLS "m32_printer_decls.h"
188 # define PERSONALITY1_INCLUDE_PRINTERS_DEFS "m32_printer_defs.h"
193 /* one personality */
197 /* The existing ARM personality, then AArch64 */
198 # define SUPPORTED_PERSONALITIES 2
199 # define PERSONALITY0_WORDSIZE 8
200 # define PERSONALITY1_WORDSIZE 4
201 # ifdef HAVE_M32_MPERS
202 # define PERSONALITY1_INCLUDE_FUNCS "m32_funcs.h"
203 # define PERSONALITY1_INCLUDE_PRINTERS_DECLS "m32_printer_decls.h"
204 # define PERSONALITY1_INCLUDE_PRINTERS_DEFS "m32_printer_defs.h"
209 # define SUPPORTED_PERSONALITIES 2
210 # define PERSONALITY0_WORDSIZE 8
211 # define PERSONALITY1_WORDSIZE 4
212 # ifdef HAVE_M32_MPERS
213 # define PERSONALITY1_INCLUDE_FUNCS "m32_funcs.h"
214 # define PERSONALITY1_INCLUDE_PRINTERS_DECLS "m32_printer_decls.h"
215 # define PERSONALITY1_INCLUDE_PRINTERS_DEFS "m32_printer_defs.h"
220 # define SUPPORTED_PERSONALITIES 2
221 # define PERSONALITY0_WORDSIZE 8
222 # define PERSONALITY1_WORDSIZE 4
224 # define DEFAULT_PERSONALITY 1
226 # ifdef HAVE_M32_MPERS
227 # define PERSONALITY1_INCLUDE_FUNCS "m32_funcs.h"
228 # define PERSONALITY1_INCLUDE_PRINTERS_DECLS "m32_printer_decls.h"
229 # define PERSONALITY1_INCLUDE_PRINTERS_DEFS "m32_printer_defs.h"
233 #ifndef SUPPORTED_PERSONALITIES
234 # define SUPPORTED_PERSONALITIES 1
236 #ifndef DEFAULT_PERSONALITY
237 # define DEFAULT_PERSONALITY 0
239 #ifndef PERSONALITY0_WORDSIZE
240 # define PERSONALITY0_WORDSIZE SIZEOF_LONG
243 #ifndef PERSONALITY0_INCLUDE_PRINTERS_DECLS
244 # define PERSONALITY0_INCLUDE_PRINTERS_DECLS "native_printer_decls.h"
246 #ifndef PERSONALITY0_INCLUDE_PRINTERS_DEFS
247 # define PERSONALITY0_INCLUDE_PRINTERS_DEFS "native_printer_defs.h"
250 #ifndef PERSONALITY1_INCLUDE_PRINTERS_DECLS
251 # define PERSONALITY1_INCLUDE_PRINTERS_DECLS "native_printer_decls.h"
253 #ifndef PERSONALITY1_INCLUDE_PRINTERS_DEFS
254 # define PERSONALITY1_INCLUDE_PRINTERS_DEFS "native_printer_defs.h"
257 #ifndef PERSONALITY2_INCLUDE_PRINTERS_DECLS
258 # define PERSONALITY2_INCLUDE_PRINTERS_DECLS "native_printer_decls.h"
260 #ifndef PERSONALITY2_INCLUDE_PRINTERS_DEFS
261 # define PERSONALITY2_INCLUDE_PRINTERS_DEFS "native_printer_defs.h"
264 #ifndef PERSONALITY1_INCLUDE_FUNCS
265 # define PERSONALITY1_INCLUDE_FUNCS "empty.h"
267 #ifndef PERSONALITY2_INCLUDE_FUNCS
268 # define PERSONALITY2_INCLUDE_FUNCS "empty.h"
271 typedef struct sysent {
276 const char *sys_name;
279 typedef struct ioctlent {
284 /* Trace Control Block */
286 int flags; /* See below for TCB_ values */
287 int pid; /* If 0, this tcb is free */
288 int qual_flg; /* qual_flags[scno] or DEFAULT_QUAL_FLAGS + RAW */
289 int u_error; /* Error code */
290 long scno; /* System call number */
291 long u_arg[MAX_ARGS]; /* System call arguments */
292 #if defined(LINUX_MIPSN32) || defined(X32)
293 long long ext_arg[MAX_ARGS];
294 long long u_lrval; /* long long return value */
296 long u_rval; /* Return value */
297 #if SUPPORTED_PERSONALITIES > 1
298 unsigned int currpers; /* Personality at the time of scno update */
300 int sys_func_rval; /* Syscall entry parser's return value */
301 int curcol; /* Output column for this process */
302 FILE *outf; /* Output file for this process */
303 const char *auxstr; /* Auxiliary info from syscall (see RVAL_STR) */
304 const struct_sysent *s_ent; /* sysent[scno] or dummy struct for bad scno */
305 const struct_sysent *s_prev_ent; /* for "resuming interrupted SYSCALL" msg */
306 struct timeval stime; /* System time usage as of last process wait */
307 struct timeval dtime; /* Delta for system time usage */
308 struct timeval etime; /* Syscall entry time */
311 struct UPT_info* libunwind_ui;
312 struct mmap_cache_t* mmap_cache;
313 unsigned int mmap_cache_size;
314 unsigned int mmap_cache_generation;
315 struct queue_t* queue;
320 /* We have attached to this process, but did not see it stopping yet */
321 #define TCB_STARTUP 0x01
322 #define TCB_IGNORE_ONE_SIGSTOP 0x02 /* Next SIGSTOP is to be ignored */
324 * Are we in system call entry or in syscall exit?
326 * This bit is set after all syscall entry processing is done.
327 * Therefore, this bit will be set when next ptrace stop occurs,
328 * which should be syscall exit stop. Other stops which are possible
329 * directly after syscall entry (death, ptrace event stop)
330 * are simpler and handled without calling trace_syscall(), therefore
331 * the places where TCB_INSYSCALL can be set but we aren't in syscall stop
332 * are limited to trace(), this condition is never observed in trace_syscall()
334 * The bit is cleared after all syscall exit processing is done.
336 * Use entering(tcp) / exiting(tcp) to check this bit to make code more readable.
338 #define TCB_INSYSCALL 0x04
339 #define TCB_ATTACHED 0x08 /* We attached to it already */
340 #define TCB_REPRINT 0x10 /* We should reprint this syscall on exit */
341 #define TCB_FILTERED 0x20 /* This system call has been filtered out */
343 /* qualifier flags */
344 #define QUAL_TRACE 0x001 /* this system call should be traced */
345 #define QUAL_ABBREV 0x002 /* abbreviate the structures of this syscall */
346 #define QUAL_VERBOSE 0x004 /* decode the structures of this syscall */
347 #define QUAL_RAW 0x008 /* print all args in hex for this syscall */
348 #define QUAL_SIGNAL 0x010 /* report events with this signal */
349 #define QUAL_READ 0x020 /* dump data read on this file descriptor */
350 #define QUAL_WRITE 0x040 /* dump data written to this file descriptor */
351 typedef uint8_t qualbits_t;
352 #define UNDEFINED_SCNO 0x100 /* Used only in tcp->qual_flg */
354 #define DEFAULT_QUAL_FLAGS (QUAL_TRACE | QUAL_ABBREV | QUAL_VERBOSE)
356 #define entering(tcp) (!((tcp)->flags & TCB_INSYSCALL))
357 #define exiting(tcp) ((tcp)->flags & TCB_INSYSCALL)
358 #define syserror(tcp) ((tcp)->u_error != 0)
359 #define verbose(tcp) ((tcp)->qual_flg & QUAL_VERBOSE)
360 #define abbrev(tcp) ((tcp)->qual_flg & QUAL_ABBREV)
361 #define filtered(tcp) ((tcp)->flags & TCB_FILTERED)
367 #define XLAT(x) { x, #x }
368 #define XLAT_END { 0, NULL }
370 extern const struct xlat addrfams[];
371 extern const struct xlat at_flags[];
372 extern const struct xlat dirent_types[];
373 extern const struct xlat open_access_modes[];
374 extern const struct xlat open_mode_flags[];
375 extern const struct xlat resource_flags[];
376 extern const struct xlat whence_codes[];
378 /* Format of syscall return values */
379 #define RVAL_DECIMAL 000 /* decimal format */
380 #define RVAL_HEX 001 /* hex format */
381 #define RVAL_OCTAL 002 /* octal format */
382 #define RVAL_UDECIMAL 003 /* unsigned decimal format */
383 #if defined(LINUX_MIPSN32) || defined(X32)
384 # if 0 /* unused so far */
385 # define RVAL_LDECIMAL 004 /* long decimal format */
386 # define RVAL_LHEX 005 /* long hex format */
387 # define RVAL_LOCTAL 006 /* long octal format */
389 # define RVAL_LUDECIMAL 007 /* long unsigned decimal format */
391 #define RVAL_FD 010 /* file descriptor */
392 #define RVAL_MASK 017 /* mask for these values */
394 #define RVAL_STR 020 /* Print `auxstr' field after return val */
395 #define RVAL_NONE 040 /* Print nothing */
397 #define RVAL_DECODED 0100 /* syscall decoding finished */
399 #define TRACE_FILE 001 /* Trace file-related syscalls. */
400 #define TRACE_IPC 002 /* Trace IPC-related syscalls. */
401 #define TRACE_NETWORK 004 /* Trace network-related syscalls. */
402 #define TRACE_PROCESS 010 /* Trace process-related syscalls. */
403 #define TRACE_SIGNAL 020 /* Trace signal-related syscalls. */
404 #define TRACE_DESC 040 /* Trace file descriptor-related syscalls. */
405 #define TRACE_MEMORY 0100 /* Trace memory mapping-related syscalls. */
406 #define SYSCALL_NEVER_FAILS 0200 /* Syscall is always successful. */
407 #define STACKTRACE_INVALIDATE_CACHE 0400 /* Trigger proc/maps cache updating */
408 #define STACKTRACE_CAPTURE_ON_ENTER 01000 /* Capture stacktrace on "entering" stage */
409 #define TRACE_INDIRECT_SUBCALL 02000 /* Syscall is an indirect socket/ipc subcall. */
411 #define IOCTL_NUMBER_UNKNOWN 0
412 #define IOCTL_NUMBER_HANDLED 1
413 #define IOCTL_NUMBER_STOP_LOOKUP 010
415 #define indirect_ipccall(tcp) (tcp->s_ent->sys_flags & TRACE_INDIRECT_SUBCALL)
417 #if defined(ARM) || defined(AARCH64) \
418 || defined(I386) || defined(X32) || defined(X86_64) \
422 || defined(MICROBLAZE) \
424 || defined(SH) || defined(SH64) \
425 || defined(SPARC) || defined(SPARC64) \
427 # define NEED_UID16_PARSERS 1
429 # define NEED_UID16_PARSERS 0
437 extern cflag_t cflag;
438 extern bool debug_flag;
441 extern bool count_wallclock;
442 extern unsigned int qflag;
443 extern bool not_failing_only;
444 extern unsigned int show_fd_path;
445 extern bool hide_log_until_execve;
446 /* are we filtering traces based on paths? */
447 extern const char **paths_selected;
448 #define tracing_paths (paths_selected != NULL)
449 extern unsigned xflag;
450 extern unsigned followfork;
452 /* if this is true do the stack trace for every system call */
453 extern bool stack_trace_enabled;
455 extern unsigned ptrace_setoptions;
456 extern unsigned max_strlen;
457 extern unsigned os_release;
458 #undef KERNEL_VERSION
459 #define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
461 void error_msg(const char *fmt, ...) ATTRIBUTE_FORMAT((printf, 1, 2));
462 void perror_msg(const char *fmt, ...) ATTRIBUTE_FORMAT((printf, 1, 2));
463 void error_msg_and_die(const char *fmt, ...)
464 ATTRIBUTE_FORMAT((printf, 1, 2)) ATTRIBUTE_NORETURN;
465 void error_msg_and_help(const char *fmt, ...)
466 ATTRIBUTE_FORMAT((printf, 1, 2)) ATTRIBUTE_NORETURN;
467 void perror_msg_and_die(const char *fmt, ...)
468 ATTRIBUTE_FORMAT((printf, 1, 2)) ATTRIBUTE_NORETURN;
469 void die_out_of_memory(void) ATTRIBUTE_NORETURN;
471 void *xmalloc(size_t size) ATTRIBUTE_MALLOC ATTRIBUTE_ALLOC_SIZE((1));
472 void *xcalloc(size_t nmemb, size_t size)
473 ATTRIBUTE_MALLOC ATTRIBUTE_ALLOC_SIZE((1, 2));
474 void *xreallocarray(void *ptr, size_t nmemb, size_t size)
475 ATTRIBUTE_ALLOC_SIZE((2, 3));
476 char *xstrdup(const char *str) ATTRIBUTE_MALLOC;
478 #if USE_CUSTOM_PRINTF
480 * See comment in vsprintf.c for allowed formats.
481 * Short version: %h[h]u, %zu, %tu are not allowed, use %[l[l]]u.
483 int strace_vfprintf(FILE *fp, const char *fmt, va_list args);
485 # define strace_vfprintf vfprintf
488 extern void set_sortby(const char *);
489 extern void set_overhead(int);
490 extern void qualify(const char *);
491 extern void print_pc(struct tcb *);
492 extern int trace_syscall(struct tcb *);
493 extern void count_syscall(struct tcb *, const struct timeval *);
494 extern void call_summary(FILE *);
496 extern void clear_regs(void);
497 extern void get_regs(pid_t pid);
498 extern int get_scno(struct tcb *tcp);
499 extern const char *syscall_name(long scno);
501 extern bool is_erestart(struct tcb *);
502 extern void temporarily_clear_syserror(struct tcb *);
503 extern void restore_cleared_syserror(struct tcb *);
505 extern int umoven(struct tcb *, long, unsigned int, void *);
506 #define umove(pid, addr, objp) \
507 umoven((pid), (addr), sizeof(*(objp)), (void *) (objp))
508 extern int umoven_or_printaddr(struct tcb *, long, unsigned int, void *);
509 #define umove_or_printaddr(pid, addr, objp) \
510 umoven_or_printaddr((pid), (addr), sizeof(*(objp)), (void *) (objp))
511 extern int umove_ulong_or_printaddr(struct tcb *, long, unsigned long *);
512 extern int umove_ulong_array_or_printaddr(struct tcb *, long, unsigned long *, size_t);
513 extern int umovestr(struct tcb *, long, unsigned int, char *);
514 extern int upeek(int pid, long, long *);
516 #if defined ALPHA || defined IA64 || defined MIPS \
517 || defined SH || defined SPARC || defined SPARC64
518 # define HAVE_GETRVAL2
519 extern long getrval2(struct tcb *);
521 # undef HAVE_GETRVAL2
524 extern const char *signame(const int);
525 extern void pathtrace_select(const char *);
526 extern int pathtrace_match(struct tcb *);
527 extern int getfdpath(struct tcb *, int, char *, unsigned);
529 extern const char *xlookup(const struct xlat *, const unsigned int);
530 extern const char *xlat_search(const struct xlat *, const size_t, const unsigned int);
532 extern unsigned long get_pagesize(void);
533 extern int string_to_uint(const char *str);
534 extern int next_set_bit(const void *bit_array, unsigned cur_bit, unsigned size_bits);
536 #define QUOTE_0_TERMINATED 0x01
537 #define QUOTE_OMIT_LEADING_TRAILING_QUOTES 0x02
539 extern int string_quote(const char *, char *, unsigned int, unsigned int);
540 extern int print_quoted_string(const char *, unsigned int, unsigned int);
542 /* a refers to the lower numbered u_arg,
543 * b refers to the higher numbered u_arg
545 #ifdef WORDS_BIGENDIAN
546 # define LONG_LONG(a,b) \
547 ((long long)((unsigned long long)(unsigned)(b) | ((unsigned long long)(a)<<32)))
549 # define LONG_LONG(a,b) \
550 ((long long)((unsigned long long)(unsigned)(a) | ((unsigned long long)(b)<<32)))
552 extern int getllval(struct tcb *, unsigned long long *, int);
553 extern int printllval(struct tcb *, const char *, int)
554 ATTRIBUTE_FORMAT((printf, 2, 0));
556 extern void printaddr(long);
557 extern void printxvals(const unsigned int, const char *, const struct xlat *, ...);
558 #define printxval(xlat, val, dflt) printxvals(val, dflt, xlat, NULL)
559 extern int printargs(struct tcb *);
560 extern int printargs_lu(struct tcb *);
561 extern int printargs_ld(struct tcb *);
562 extern void addflags(const struct xlat *, int);
563 extern int printflags(const struct xlat *, int, const char *);
564 extern const char *sprintflags(const char *, const struct xlat *, int);
565 extern const char *sprintmode(int);
566 extern const char *sprinttime(time_t);
567 extern void dumpiov_in_msghdr(struct tcb *, long, unsigned long);
568 extern void dumpiov_in_mmsghdr(struct tcb *, long);
569 extern void dumpiov_upto(struct tcb *, int, long, unsigned long);
570 #define dumpiov(tcp, len, addr) \
571 dumpiov_upto((tcp), (len), (addr), (unsigned long) -1L)
572 extern void dumpstr(struct tcb *, long, int);
573 extern void printstr(struct tcb *, long, long);
574 extern bool printnum_short(struct tcb *, long, const char *)
575 ATTRIBUTE_FORMAT((printf, 3, 0));
576 extern bool printnum_int(struct tcb *, long, const char *)
577 ATTRIBUTE_FORMAT((printf, 3, 0));
578 extern bool printnum_int64(struct tcb *, long, const char *)
579 ATTRIBUTE_FORMAT((printf, 3, 0));
581 #if SUPPORTED_PERSONALITIES > 1 && SIZEOF_LONG > 4
582 extern bool printnum_long_int(struct tcb *, long, const char *, const char *)
583 ATTRIBUTE_FORMAT((printf, 3, 0))
584 ATTRIBUTE_FORMAT((printf, 4, 0));
585 # define printnum_slong(tcp, addr) \
586 printnum_long_int((tcp), (addr), "%" PRId64, "%d")
587 # define printnum_ulong(tcp, addr) \
588 printnum_long_int((tcp), (addr), "%" PRIu64, "%u")
589 # define printnum_ptr(tcp, addr) \
590 printnum_long_int((tcp), (addr), "%#" PRIx64, "%#x")
591 #elif SIZEOF_LONG > 4
592 # define printnum_slong(tcp, addr) \
593 printnum_int64((tcp), (addr), "%" PRId64)
594 # define printnum_ulong(tcp, addr) \
595 printnum_int64((tcp), (addr), "%" PRIu64)
596 # define printnum_ptr(tcp, addr) \
597 printnum_int64((tcp), (addr), "%#" PRIx64)
599 # define printnum_slong(tcp, addr) \
600 printnum_int((tcp), (addr), "%d")
601 # define printnum_ulong(tcp, addr) \
602 printnum_int((tcp), (addr), "%u")
603 # define printnum_ptr(tcp, addr) \
604 printnum_int((tcp), (addr), "%#x")
607 extern bool printpair_int(struct tcb *, long, const char *)
608 ATTRIBUTE_FORMAT((printf, 3, 0));
609 extern bool printpair_int64(struct tcb *, long, const char *)
610 ATTRIBUTE_FORMAT((printf, 3, 0));
611 extern void printpath(struct tcb *, long);
612 extern void printpathn(struct tcb *, long, unsigned int);
613 #define TIMESPEC_TEXT_BUFSIZE \
614 (sizeof(intmax_t)*3 * 2 + sizeof("{tv_sec=%jd, tv_nsec=%jd}"))
615 extern void printfd(struct tcb *, int);
616 extern bool print_sockaddr_by_inode(const unsigned long, const char *);
617 extern bool print_sockaddr_by_inode_cached(const unsigned long);
618 extern void print_dirfd(struct tcb *, int);
619 extern void printsock(struct tcb *, long, int);
620 extern void print_sock_optmgmt(struct tcb *, long, int);
622 extern void printrusage32(struct tcb *, long);
623 extern const char *sprint_timeval32(struct tcb *tcp, long);
624 extern void print_timeval32(struct tcb *tcp, long);
625 extern void print_timeval32_pair(struct tcb *tcp, long);
626 extern void print_itimerval32(struct tcb *tcp, long);
628 extern void printuid(const char *, const unsigned int);
629 extern void print_sigset_addr_len(struct tcb *, long, long);
630 extern const char *sprintsigmask_n(const char *, const void *, unsigned int);
631 #define tprintsigmask_addr(prefix, mask) \
632 tprints(sprintsigmask_n((prefix), (mask), sizeof(mask)))
633 extern void printsignal(int);
634 extern void tprint_iov(struct tcb *, unsigned long, unsigned long, int decode_iov);
635 extern void tprint_iov_upto(struct tcb *, unsigned long, unsigned long, int decode_iov, unsigned long);
636 extern void tprint_open_modes(int);
637 extern const char *sprint_open_modes(int);
638 extern void print_seccomp_filter(struct tcb *tcp, unsigned long);
640 extern int block_ioctl(struct tcb *, const unsigned int, long);
641 extern int evdev_ioctl(struct tcb *, const unsigned int, long);
642 extern int loop_ioctl(struct tcb *, const unsigned int, long);
643 extern int mtd_ioctl(struct tcb *, const unsigned int, long);
644 extern int ptp_ioctl(struct tcb *, const unsigned int, long);
645 extern int rtc_ioctl(struct tcb *, const unsigned int, long);
646 extern int scsi_ioctl(struct tcb *, const unsigned int, long);
647 extern int sock_ioctl(struct tcb *, const unsigned int, long);
648 extern int term_ioctl(struct tcb *, const unsigned int, long);
649 extern int ubi_ioctl(struct tcb *, const unsigned int, long);
650 extern int v4l2_ioctl(struct tcb *, const unsigned int, long);
652 extern int tv_nz(const struct timeval *);
653 extern int tv_cmp(const struct timeval *, const struct timeval *);
654 extern double tv_float(const struct timeval *);
655 extern void tv_add(struct timeval *, const struct timeval *, const struct timeval *);
656 extern void tv_sub(struct timeval *, const struct timeval *, const struct timeval *);
657 extern void tv_mul(struct timeval *, const struct timeval *, int);
658 extern void tv_div(struct timeval *, const struct timeval *, int);
661 extern void unwind_init(void);
662 extern void unwind_tcb_init(struct tcb *tcp);
663 extern void unwind_tcb_fin(struct tcb *tcp);
664 extern void unwind_cache_invalidate(struct tcb* tcp);
665 extern void unwind_print_stacktrace(struct tcb* tcp);
666 extern void unwind_capture_stacktrace(struct tcb* tcp);
669 /* Strace log generation machinery.
671 * printing_tcp: tcb which has incomplete line being printed right now.
672 * NULL if last line has been completed ('\n'-terminated).
673 * printleader(tcp) examines it, finishes incomplete line if needed,
674 * the sets it to tcp.
675 * line_ended() clears printing_tcp and resets ->curcol = 0.
676 * tcp->curcol == 0 check is also used to detect completeness
677 * of last line, since in -ff mode just checking printing_tcp for NULL
680 * If you change this code, test log generation in both -f and -ff modes
682 * strace -oLOG -f[f] test/threaded_execve
683 * strace -oLOG -f[f] test/sigkill_rain
684 * strace -oLOG -f[f] -p "`pidof web_browser`"
686 extern struct tcb *printing_tcp;
687 extern void printleader(struct tcb *);
688 extern void line_ended(void);
689 extern void tabto(void);
690 extern void tprintf(const char *fmt, ...) ATTRIBUTE_FORMAT((printf, 1, 2));
691 extern void tprints(const char *str);
693 #if SUPPORTED_PERSONALITIES > 1
694 extern void set_personality(int personality);
695 extern unsigned current_personality;
697 # define set_personality(personality) ((void)0)
698 # define current_personality 0
701 #if SUPPORTED_PERSONALITIES == 1
702 # define current_wordsize PERSONALITY0_WORDSIZE
704 # if SUPPORTED_PERSONALITIES == 2 && PERSONALITY0_WORDSIZE == PERSONALITY1_WORDSIZE
705 # define current_wordsize PERSONALITY0_WORDSIZE
707 extern unsigned current_wordsize;
711 /* In many, many places we play fast and loose and use
712 * tprintf("%d", (int) tcp->u_arg[N]) to print fds, pids etc.
713 * We probably need to use widen_to_long() instead:
715 #if SUPPORTED_PERSONALITIES > 1 && SIZEOF_LONG > 4
716 # define widen_to_long(v) (current_wordsize == 4 ? (long)(int32_t)(v) : (long)(v))
718 # define widen_to_long(v) ((long)(v))
721 extern const struct_sysent sysent0[];
722 extern const char *const errnoent0[];
723 extern const char *const signalent0[];
724 extern const struct_ioctlent ioctlent0[];
725 extern qualbits_t *qual_vec[SUPPORTED_PERSONALITIES];
726 #define qual_flags (qual_vec[current_personality])
728 #if SUPPORTED_PERSONALITIES > 1
729 extern const struct_sysent *sysent;
730 extern const char *const *errnoent;
731 extern const char *const *signalent;
732 extern const struct_ioctlent *ioctlent;
734 # define sysent sysent0
735 # define errnoent errnoent0
736 # define signalent signalent0
737 # define ioctlent ioctlent0
740 extern unsigned nsyscalls;
741 extern unsigned nerrnos;
742 extern unsigned nsignals;
743 extern unsigned nioctlents;
744 extern unsigned num_quals;
746 #if SUPPORTED_PERSONALITIES > 1
747 # include "printers.h"
749 # include "native_printer_decls.h"
753 * If you need non-NULL sysent[scno].sys_func and sysent[scno].sys_name
755 #define SCNO_IS_VALID(scno) \
756 ((unsigned long)(scno) < nsyscalls && sysent[scno].sys_func)
758 /* Only ensures that sysent[scno] isn't out of range */
759 #define SCNO_IN_RANGE(scno) \
760 ((unsigned long)(scno) < nsyscalls)
762 #define MPERS_FUNC_NAME__(prefix, name) prefix ## name
763 #define MPERS_FUNC_NAME_(prefix, name) MPERS_FUNC_NAME__(prefix, name)
764 #define MPERS_FUNC_NAME(name) MPERS_FUNC_NAME_(MPERS_PREFIX, name)
766 #define SYS_FUNC_NAME(syscall_name) MPERS_FUNC_NAME(syscall_name)
768 #define SYS_FUNC(syscall_name) int SYS_FUNC_NAME(sys_ ## syscall_name)(struct tcb *tcp)
770 #define MPERS_PRINTER_DECL(type, name) type MPERS_FUNC_NAME(name)