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.
44 #ifdef _LARGEFILE64_SOURCE
45 /* This is the macro everything checks before using foo64 names. */
46 # ifndef _LFS64_LARGEFILE
47 # define _LFS64_LARGEFILE 1
51 /* configuration section */
53 #if defined(LINUX) && defined(MIPS)
54 #define MAX_QUALS 7000 /* maximum number of syscalls, signals, etc. */
56 #define MAX_QUALS 2048 /* maximum number of syscalls, signals, etc. */
59 #ifndef DEFAULT_STRLEN
60 #define DEFAULT_STRLEN 32 /* default maximum # of bytes printed in
61 `printstr', change with `-s' switch */
63 #ifndef DEFAULT_ACOLUMN
64 #define DEFAULT_ACOLUMN 40 /* default alignment column for results */
67 #define MAX_ARGS 32 /* maximum number of args to a syscall */
69 #ifndef DEFAULT_SORTBY
70 #define DEFAULT_SORTBY "time" /* default sorting method for call profiling */
73 #include <sys/types.h>
85 #endif /* STDC_HEADERS */
92 # if defined(SPARC) || defined(SPARC64)
101 # if defined(MIPS) && _MIPS_SIM == _MIPS_SIM_ABI32
102 # define LINUX_MIPSO32
104 # if defined(MIPS) && _MIPS_SIM == _MIPS_SIM_NABI32
105 # define LINUX_MIPSN32
106 # define LINUX_MIPS64
108 # if defined(MIPS) && _MIPS_SIM == _MIPS_SIM_ABI64
109 # define LINUX_MIPSN64
110 # define LINUX_MIPS64
114 #if defined(SVR4) || defined(FREEBSD)
122 #error "FreeBSD support is only for i386 arch right now."
124 #include <machine/psl.h>
125 #include <machine/reg.h>
126 #include <sys/syscall.h>
130 #include <sys/procfs.h>
131 #ifdef HAVE_MP_PROCFS
135 #include <sys/pioctl.h>
137 #else /* !USE_PROCFS */
138 #if (defined(LINUXSPARC) || defined (LINUX_X86_64)) && defined(__GLIBC__)
139 #include <sys/ptrace.h>
141 /* Work around awkward prototype in ptrace.h. */
142 #define ptrace xptrace
143 #include <sys/ptrace.h>
147 #include <asm/ptrace.h>
152 extern long ptrace(int, int, char *, long);
154 extern int ptrace(int, int, char *, int, ...);
156 #else /* !__STDC__ */
158 #endif /* !__STDC__ */
159 #endif /* !LINUXSPARC */
163 #if !defined(__GLIBC__)
164 #define PTRACE_PEEKUSER PTRACE_PEEKUSR
165 #define PTRACE_POKEUSER PTRACE_POKEUSR
182 # define PT_GR20 (20*4)
183 # define PT_GR26 (26*4)
184 # define PT_GR28 (28*4)
185 # define PT_IAOQ0 (106*4)
186 # define PT_IAOQ1 (107*4)
189 /* SH64 Linux - this code assumes the following kernel API for system calls:
191 System Call Offset 16 (actually, (syscall no.) | (0x1n << 16),
192 where n = no. of parameters.
193 Other regs Offset 24+
195 On entry: R2-7 = parameters 1-6 (as many as necessary)
196 On return: R9 = result. */
198 /* Offset for peeks of registers */
199 # define REG_OFFSET (24)
200 # define REG_GENERAL(x) (8*(x)+REG_OFFSET)
201 # define REG_PC (0*8)
202 # define REG_SYSCALL (2*8)
206 #define SUPPORTED_PERSONALITIES 1
207 #define DEFAULT_PERSONALITY 0
210 #include <linux/a.out.h>
211 #define PERSONALITY0_WORDSIZE 4
212 #define PERSONALITY1_WORDSIZE 4
213 #undef SUPPORTED_PERSONALITIES
215 #include <asm/psrcompat.h>
216 #define SUPPORTED_PERSONALITIES 3
217 #define PERSONALITY2_WORDSIZE 8
220 #define SUPPORTED_PERSONALITIES 2
222 #endif /* LINUXSPARC */
225 #undef SUPPORTED_PERSONALITIES
226 #define SUPPORTED_PERSONALITIES 2
227 #define PERSONALITY0_WORDSIZE 8
228 #define PERSONALITY1_WORDSIZE 4
232 #undef SUPPORTED_PERSONALITIES
233 #define SUPPORTED_PERSONALITIES 2
234 #define PERSONALITY0_WORDSIZE 4
235 #define PERSONALITY1_WORDSIZE 4
239 #ifdef HAVE_MP_PROCFS
240 extern int mp_ioctl (int f, int c, void *a, int s);
241 #define IOCTL(f,c,a) mp_ioctl (f, c, a, sizeof *a)
242 #define IOCTL_STATUS(t) \
243 pread (t->pfd_stat, &t->status, sizeof t->status, 0)
244 #define IOCTL_WSTOP(t) \
245 (IOCTL (t->pfd, PCWSTOP, (char *)NULL) < 0 ? -1 : \
247 #define PR_WHY pr_lwp.pr_why
248 #define PR_WHAT pr_lwp.pr_what
249 #define PR_REG pr_lwp.pr_context.uc_mcontext.gregs
250 #define PR_FLAGS pr_lwp.pr_flags
251 #define PR_SYSCALL pr_lwp.pr_syscall
252 #define PR_INFO pr_lwp.pr_info
253 #define PIOCSTIP PCSTOP
254 #define PIOCSET PCSET
255 #define PIOCRESET PCRESET
256 #define PIOCSTRACE PCSTRACE
257 #define PIOCSFAULT PCSFAULT
258 #define PIOCWSTOP PCWSTOP
259 #define PIOCSTOP PCSTOP
260 #define PIOCSENTRY PCSENTRY
261 #define PIOCSEXIT PCSEXIT
262 #define PIOCRUN PCRUN
265 #define IOCTL_STATUS(t) ioctl (t->pfd, PIOCSTATUS, &t->status)
266 #define IOCTL_WSTOP(t) ioctl (t->pfd, PIOCWSTOP, &t->status)
267 #define PR_WHY pr_why
268 #define PR_WHAT pr_what
269 #define PR_REG pr_reg
270 #define PR_FLAGS pr_flags
271 #define PR_SYSCALL pr_syscall
272 #define PR_INFO pr_info
277 #define IOCTL_STATUS(t) ioctl (t->pfd, PIOCSTATUS, &t->status)
278 #define IOCTL_WSTOP(t) ioctl (t->pfd, PIOCWAIT, &t->status)
279 #define PIOCRUN PIOCCONT
280 #define PIOCWSTOP PIOCWAIT
283 #define PR_FLAGS state
284 /* from /usr/src/sys/miscfs/procfs/procfs_vnops.c,
285 status.state = 0 for running, 1 for stopped */
287 #define PR_SYSENTRY S_SCE
288 #define PR_SYSEXIT S_SCX
289 #define PR_SIGNALLED S_SIG
290 #define PR_FAULTED S_CORE
293 /* Trace Control Block */
295 short flags; /* See below for TCB_ values */
296 int pid; /* Process Id of this entry */
297 long scno; /* System call number */
298 int u_nargs; /* System call arguments */
299 long u_arg[MAX_ARGS]; /* System call arguments */
300 #if defined (LINUX_MIPSN32)
301 long long ext_arg[MAX_ARGS]; /* System call arguments */
303 int u_error; /* Error code */
304 long u_rval; /* (first) return value */
305 #ifdef HAVE_LONG_LONG
306 long long u_lrval; /* long long return value */
308 FILE *outf; /* Output file for this process */
309 const char *auxstr; /* Auxiliary info from syscall (see RVAL_STR) */
310 struct timeval stime; /* System time usage as of last process wait */
311 struct timeval dtime; /* Delta for system time usage */
312 struct timeval etime; /* Syscall entry time */
313 /* Support for tracing forked processes */
314 struct tcb *parent; /* Parent of this process */
315 int nchildren; /* # of traced children */
316 int waitpid; /* pid(s) this process is waiting for */
317 int nzombies; /* # of formerly traced children now dead */
319 int nclone_threads; /* # of nchildren with CLONE_THREAD */
320 int nclone_detached; /* # of nchildren with CLONE_DETACHED */
321 int nclone_waiting; /* clone threads in wait4 (TCB_SUSPENDED) */
323 /* (1st arg of wait4()) */
324 long baddr; /* `Breakpoint' address */
325 long inst[2]; /* Instructions on above */
326 int pfd; /* proc file descriptor */
328 #ifdef HAVE_MP_PROCFS
333 prstatus_t status; /* procfs status structure */
337 struct procfs_status status;
344 #define TCB_STARTUP 00001 /* We have just begun ptracing this process */
345 #define TCB_INUSE 00002 /* This table entry is in use */
346 #define TCB_INSYSCALL 00004 /* A system call is in progress */
347 #define TCB_ATTACHED 00010 /* Process is not our own child */
348 #define TCB_EXITING 00020 /* As far as we know, this process is exiting */
349 #define TCB_SUSPENDED 00040 /* Process has done a wait(4), that can
350 not be allowed to complete just now */
351 #define TCB_BPTSET 00100 /* "Breakpoint" set after fork(2) */
352 #define TCB_SIGTRAPPED 00200 /* Process wanted to block SIGTRAP */
353 #define TCB_FOLLOWFORK 00400 /* Process should have forks followed */
354 #define TCB_REPRINT 01000 /* We should reprint this syscall on exit */
356 # if defined(ALPHA) || defined(SPARC) || defined(SPARC64) || defined(POWERPC) || defined(IA64) || defined(HPPA) || defined(SH) || defined(SH64) || defined(S390) || defined(S390X) || defined(ARM) || defined(MIPS)
357 # define TCB_WAITEXECVE 02000 /* ignore SIGTRAP after exceve */
359 # define TCB_CLONE_DETACHED 04000 /* CLONE_DETACHED set in creating syscall */
360 # define TCB_CLONE_THREAD 010000 /* CLONE_THREAD set in creating syscall */
361 # define TCB_GROUP_EXITING 020000 /* TCB_EXITING was exit_group, not _exit */
362 # include <sys/syscall.h>
363 # ifndef __NR_exit_group
364 # /* Hack: Most headers around are too old to have __NR_exit_group. */
366 # define __NR_exit_group 405
368 # define __NR_exit_group 252
369 # elif defined X86_64
370 # define __NR_exit_group 231
372 # define __NR_exit_group 1236
373 # elif defined POWERPC
374 # define __NR_exit_group 234
375 # elif defined S390 || defined S390X
376 # define __NR_exit_group 248
377 # elif defined SPARC || defined SPARC64
378 # define __NR_exit_group 188
380 # define __NR_exit_group 247
381 # endif /* ALPHA et al */
382 # endif /* !__NR_exit_group */
385 /* qualifier flags */
386 #define QUAL_TRACE 0001 /* this system call should be traced */
387 #define QUAL_ABBREV 0002 /* abbreviate the structures of this syscall */
388 #define QUAL_VERBOSE 0004 /* decode the structures of this syscall */
389 #define QUAL_RAW 0010 /* print all args in hex for this syscall */
390 #define QUAL_SIGNAL 0020 /* report events with this signal */
391 #define QUAL_FAULT 0040 /* report events with this fault */
392 #define QUAL_READ 0100 /* dump data read on this file descriptor */
393 #define QUAL_WRITE 0200 /* dump data written to this file descriptor */
395 #define entering(tcp) (!((tcp)->flags & TCB_INSYSCALL))
396 #define exiting(tcp) ((tcp)->flags & TCB_INSYSCALL)
397 #define syserror(tcp) ((tcp)->u_error != 0)
398 #define verbose(tcp) (qual_flags[(tcp)->scno] & QUAL_VERBOSE)
399 #define abbrev(tcp) (qual_flags[(tcp)->scno] & QUAL_ABBREV)
406 /* Format of syscall return values */
407 #define RVAL_DECIMAL 000 /* decimal format */
408 #define RVAL_HEX 001 /* hex format */
409 #define RVAL_OCTAL 002 /* octal format */
410 #define RVAL_UDECIMAL 003 /* unsigned decimal format */
411 #define RVAL_LDECIMAL 004 /* long decimal format */
412 #define RVAL_LHEX 005 /* long hex format */
413 #define RVAL_LOCTAL 006 /* long octal format */
414 #define RVAL_LUDECIMAL 007 /* long unsigned decimal format */
415 #define RVAL_MASK 007 /* mask for these values */
417 #define RVAL_STR 010 /* Print `auxstr' field after return val */
418 #define RVAL_NONE 020 /* Print nothing */
421 #define offsetof(type, member) (((char *) &(((type *) NULL)->member)) - \
422 ((char *) (type *) NULL))
423 #endif /* !offsetof */
425 /* get offset of member within a user struct */
426 #define uoff(member) offsetof(struct user, member)
428 #define TRACE_FILE 001 /* Trace file-related syscalls. */
429 #define TRACE_IPC 002 /* Trace IPC-related syscalls. */
430 #define TRACE_NETWORK 004 /* Trace network-related syscalls. */
431 #define TRACE_PROCESS 010 /* Trace process-related syscalls. */
432 #define TRACE_SIGNAL 020 /* Trace signal-related syscalls. */
433 #define TRACE_DESC 040 /* Trace file descriptor-related syscalls. */
435 extern struct tcb **tcbtab;
436 extern int *qual_flags;
437 extern int debug, followfork;
438 extern int dtime, cflag, xflag, qflag;
440 extern unsigned int nprocs, tcbtabsize;
441 extern int max_strlen;
442 extern struct tcb *tcp_last;
450 enum bitness_t { BITNESS_CURRENT = 0, BITNESS_32 };
452 extern int set_personality P((int personality));
453 extern const char *xlookup P((const struct xlat *, int));
454 extern struct tcb *alloc_tcb P((int, int));
455 extern struct tcb *pid2tcb P((int));
456 extern void droptcb P((struct tcb *));
457 extern int expand_tcbtab P((void));
459 #define alloctcb(pid) alloc_tcb((pid), 1)
461 extern void set_sortby P((char *));
462 extern void set_overhead P((int));
463 extern void qualify P((char *));
464 extern int get_scno P((struct tcb *));
465 extern long known_scno P((struct tcb *));
466 extern int trace_syscall P((struct tcb *));
467 extern int count_syscall P((struct tcb *, struct timeval *));
468 extern void printxval P((const struct xlat *, int, const char *));
469 extern int printargs P((struct tcb *));
470 extern int addflags P((const struct xlat *, int));
471 extern int printflags P((const struct xlat *, int, const char *));
472 extern const char *sprintflags P((const char *, const struct xlat *, int));
473 extern int umoven P((struct tcb *, long, int, char *));
474 extern int umovestr P((struct tcb *, long, int, char *));
475 extern int upeek P((int, long, long *));
476 extern void dumpiov P((struct tcb *, int, long));
477 extern void dumpstr P((struct tcb *, long, int));
478 extern void printstr P((struct tcb *, long, int));
479 extern void printnum P((struct tcb *, long, char *));
480 extern void printnum_int P((struct tcb *, long, char *));
481 extern void printpath P((struct tcb *, long));
482 extern void printpathn P((struct tcb *, long, int));
483 extern void printtv_bitness P((struct tcb *, long, enum bitness_t, int));
484 extern void sprinttv P((struct tcb *, long, enum bitness_t, char *));
485 extern void print_timespec P((struct tcb *, long));
486 extern void sprint_timespec P((char *, struct tcb *, long));
487 #ifdef HAVE_SIGINFO_T
488 extern void printsiginfo P((siginfo_t *, int));
490 extern void printsock P((struct tcb *, long, int));
491 extern void print_sock_optmgmt P((struct tcb *, long, int));
492 extern void printrusage P((struct tcb *, long));
493 extern void printuid P((const char *, unsigned long));
494 extern int clearbpt P((struct tcb *));
495 extern int setbpt P((struct tcb *));
496 extern int sigishandled P((struct tcb *, int));
497 extern void printcall P((struct tcb *));
498 extern const char *signame P((int));
499 extern void print_sigset P((struct tcb *, long, int));
500 extern void printsignal P((int));
501 extern void printleader P((struct tcb *));
502 extern void printtrailer P((struct tcb *));
503 extern void tabto P((int));
504 extern void call_summary P((FILE *));
505 extern void tprint_iov P((struct tcb *, unsigned long, unsigned long));
506 extern void tprint_open_modes P((struct tcb *, mode_t));
509 extern int internal_clone P((struct tcb *));
511 extern int internal_fork P((struct tcb *));
512 extern int internal_exec P((struct tcb *));
513 extern int internal_wait P((struct tcb *, int));
514 extern int internal_exit P((struct tcb *));
516 extern const struct ioctlent *ioctl_lookup P((long));
517 extern const struct ioctlent *ioctl_next_match P((const struct ioctlent *));
518 extern int ioctl_decode P((struct tcb *, long, long));
519 extern int term_ioctl P((struct tcb *, long, long));
520 extern int sock_ioctl P((struct tcb *, long, long));
521 extern int proc_ioctl P((struct tcb *, int, int));
522 extern int stream_ioctl P((struct tcb *, int, int));
524 extern int rtc_ioctl P((struct tcb *, long, long));
525 extern int scsi_ioctl P((struct tcb *, long, long));
528 extern void tv_tv P((struct timeval *, int, int));
529 extern int tv_nz P((struct timeval *));
530 extern int tv_cmp P((struct timeval *, struct timeval *));
531 extern double tv_float P((struct timeval *));
532 extern void tv_add P((struct timeval *, struct timeval *, struct timeval *));
533 extern void tv_sub P((struct timeval *, struct timeval *, struct timeval *));
534 extern void tv_mul P((struct timeval *, struct timeval *, int));
535 extern void tv_div P((struct timeval *, struct timeval *, int));
538 extern int fixvfork P((struct tcb *));
540 #if !(defined(LINUX) && !defined(SPARC) && !defined(SPARC64) && !defined(IA64))
541 extern long getrval2 P((struct tcb *));
544 extern int proc_open P((struct tcb *tcp, int attaching));
547 #define umove(pid, addr, objp) \
548 umoven((pid), (addr), sizeof *(objp), (char *) (objp))
550 #define printtv(tcp, addr) \
551 printtv_bitness((tcp), (addr), BITNESS_CURRENT, 0)
552 #define printtv_special(tcp, addr) \
553 printtv_bitness((tcp), (addr), BITNESS_CURRENT, 1)
557 extern void tprintf(const char *fmt, ...)
558 __attribute__ ((format (printf, 1, 2)));
560 extern void tprintf(const char *fmt, ...);
563 extern void tprintf();
566 #ifndef HAVE_STRERROR
567 const char *strerror P((int));
569 #ifndef HAVE_STRSIGNAL
570 const char *strsignal P((int));
573 extern int current_personality;
574 extern const int personality_wordsize[];
580 const char *sys_name;
581 long native_scno; /* Match against SYS_* constants. */
584 extern const struct sysent *sysent;
585 extern int nsyscalls;
587 extern const char *const *errnoent;
596 extern const struct ioctlent *ioctlent;
597 extern int nioctlents;
599 extern const char *const *signalent;
602 extern const struct ioctlent ioctlent0[];
603 extern const int nioctlents0;
604 extern const char *const signalent0[];
605 extern const int nsignals0;
607 #if SUPPORTED_PERSONALITIES >= 2
608 extern const struct ioctlent ioctlent1[];
609 extern const int nioctlents1;
610 extern const char *const signalent1[];
611 extern const int nsignals1;
612 #endif /* SUPPORTED_PERSONALITIES >= 2 */
614 #if SUPPORTED_PERSONALITIES >= 3
615 extern const struct ioctlent ioctlent2[];
616 extern const int nioctlents2;
617 extern const char *const signalent2[];
618 extern const int nsignals2;
619 #endif /* SUPPORTED_PERSONALITIES >= 3 */
621 #if defined(FREEBSD) || (defined(LINUX) \
622 && defined(POWERPC) && !defined(__powerpc64__)) \
623 || defined (LINUX_MIPSO32)
624 /* ARRGH! off_t args are aligned on 64 bit boundaries! */
625 #define ALIGN64(tcp,arg) \
628 memmove (&tcp->u_arg[arg], &tcp->u_arg[arg + 1], \
629 (tcp->u_nargs - arg - 1) * sizeof tcp->u_arg[0]); \
632 #define ALIGN64(tcp,arg) do { } while (0)
637 /* _l refers to the lower numbered u_arg,
638 * _h refers to the higher numbered u_arg
641 #if HAVE_LITTLE_ENDIAN_LONG_LONG
642 #define LONG_LONG(_l,_h) \
643 ((long long)((unsigned long long)(unsigned)(_l) | ((unsigned long long)(_h)<<32)))
645 #define LONG_LONG(_l,_h) \
646 ((long long)((unsigned long long)(unsigned)(_h) | ((unsigned long long)(_l)<<32)))
654 extern int not_failing_only;