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 /* configuration section */
42 #if defined(LINUX) && defined(MIPS)
43 #define MAX_QUALS 5000 /* maximum number of syscalls, signals, etc. */
45 #define MAX_QUALS 2048 /* maximum number of syscalls, signals, etc. */
48 #ifndef DEFAULT_STRLEN
49 #define DEFAULT_STRLEN 32 /* default maximum # of bytes printed in
50 `printstr', change with `-s' switch */
52 #ifndef DEFAULT_ACOLUMN
53 #define DEFAULT_ACOLUMN 40 /* default alignment column for results */
56 #define MAX_ARGS 32 /* maximum number of args to a syscall */
58 #ifndef DEFAULT_SORTBY
59 #define DEFAULT_SORTBY "time" /* default sorting method for call profiling */
62 #include <sys/types.h>
74 #endif /* STDC_HEADERS */
92 #if defined(SVR4) || defined(FREEBSD)
100 #error "FreeBSD support is only for i386 arch right now."
102 #include <machine/psl.h>
103 #include <machine/reg.h>
104 #include <sys/syscall.h>
108 #include <sys/procfs.h>
109 #ifdef HAVE_MP_PROCFS
113 #include <sys/pioctl.h>
115 #else /* !USE_PROCFS */
116 #if (defined(LINUXSPARC) || defined (LINUX_X86_64)) && defined(__GLIBC__)
117 #include <sys/ptrace.h>
119 /* Work around awkward prototype in ptrace.h. */
120 #define ptrace xptrace
121 #include <sys/ptrace.h>
125 #include <asm/ptrace.h>
130 extern long ptrace(int, int, char *, long);
132 extern int ptrace(int, int, char *, int, ...);
134 #else /* !__STDC__ */
136 #endif /* !__STDC__ */
137 #endif /* !LINUXSPARC */
141 #if !defined(__GLIBC__)
142 #define PTRACE_PEEKUSER PTRACE_PEEKUSR
143 #define PTRACE_POKEUSER PTRACE_POKEUSR
160 # define PT_GR20 (20*4)
161 # define PT_GR26 (26*4)
162 # define PT_GR28 (28*4)
163 # define PT_IAOQ0 (106*4)
164 # define PT_IAOQ1 (107*4)
168 #define SUPPORTED_PERSONALITIES 1
169 #define DEFAULT_PERSONALITY 0
172 #include <linux/a.out.h>
174 #undef SUPPORTED_PERSONALITIES
175 #define SUPPORTED_PERSONALITIES 2
176 #endif /* LINUXSPARC */
179 #undef SUPPORTED_PERSONALITIES
180 #define SUPPORTED_PERSONALITIES 2
184 #ifdef HAVE_MP_PROCFS
185 extern int mp_ioctl (int f, int c, void *a, int s);
186 #define IOCTL(f,c,a) mp_ioctl (f, c, a, sizeof *a)
187 #define IOCTL_STATUS(t) \
188 pread (t->pfd_stat, &t->status, sizeof t->status, 0)
189 #define IOCTL_WSTOP(t) \
190 (IOCTL (t->pfd, PCWSTOP, (char *)NULL) < 0 ? -1 : \
192 #define PR_WHY pr_lwp.pr_why
193 #define PR_WHAT pr_lwp.pr_what
194 #define PR_REG pr_lwp.pr_context.uc_mcontext.gregs
195 #define PR_FLAGS pr_lwp.pr_flags
196 #define PR_SYSCALL pr_lwp.pr_syscall
197 #define PR_INFO pr_lwp.pr_info
198 #define PIOCSTIP PCSTOP
199 #define PIOCSET PCSET
200 #define PIOCRESET PCRESET
201 #define PIOCSTRACE PCSTRACE
202 #define PIOCSFAULT PCSFAULT
203 #define PIOCWSTOP PCWSTOP
204 #define PIOCSTOP PCSTOP
205 #define PIOCSENTRY PCSENTRY
206 #define PIOCSEXIT PCSEXIT
207 #define PIOCRUN PCRUN
210 #define IOCTL_STATUS(t) ioctl (t->pfd, PIOCSTATUS, &t->status)
211 #define IOCTL_WSTOP(t) ioctl (t->pfd, PIOCWSTOP, &t->status)
212 #define PR_WHY pr_why
213 #define PR_WHAT pr_what
214 #define PR_REG pr_reg
215 #define PR_FLAGS pr_flags
216 #define PR_SYSCALL pr_syscall
217 #define PR_INFO pr_info
222 #define IOCTL_STATUS(t) ioctl (t->pfd, PIOCSTATUS, &t->status)
223 #define IOCTL_WSTOP(t) ioctl (t->pfd, PIOCWAIT, &t->status)
224 #define PIOCRUN PIOCCONT
225 #define PIOCWSTOP PIOCWAIT
228 #define PR_FLAGS state
229 /* from /usr/src/sys/miscfs/procfs/procfs_vnops.c,
230 status.state = 0 for running, 1 for stopped */
232 #define PR_SYSENTRY S_SCE
233 #define PR_SYSEXIT S_SCX
234 #define PR_SIGNALLED S_SIG
235 #define PR_FAULTED S_CORE
238 /* Trace Control Block */
240 short flags; /* See below for TCB_ values */
241 int pid; /* Process Id of this entry */
242 long scno; /* System call number */
243 int u_nargs; /* System call arguments */
244 long u_arg[MAX_ARGS]; /* System call arguments */
245 int u_error; /* Error code */
246 long u_rval; /* (first) return value */
247 #ifdef HAVE_LONG_LONG
248 long long u_lrval; /* long long return value */
250 FILE *outf; /* Output file for this process */
251 const char *auxstr; /* Auxiliary info from syscall (see RVAL_STR) */
252 struct timeval stime; /* System time usage as of last process wait */
253 struct timeval dtime; /* Delta for system time usage */
254 struct timeval etime; /* Syscall entry time */
255 /* Support for tracing forked processes */
256 struct tcb *parent; /* Parent of this process */
257 int nchildren; /* # of traced children */
258 int waitpid; /* pid(s) this process is waiting for */
260 int nclone_threads; /* # of nchildren with CLONE_THREAD */
261 int nclone_detached; /* # of nchildren with CLONE_DETACHED */
262 int nclone_waiting; /* clone threads in wait4 (TCB_SUSPENDED) */
264 /* (1st arg of wait4()) */
265 long baddr; /* `Breakpoint' address */
266 long inst[2]; /* Instructions on above */
267 int pfd; /* proc file descriptor */
269 #ifdef HAVE_MP_PROCFS
274 prstatus_t status; /* procfs status structure */
278 struct procfs_status status;
285 #define TCB_STARTUP 00001 /* We have just begun ptracing this process */
286 #define TCB_INUSE 00002 /* This table entry is in use */
287 #define TCB_INSYSCALL 00004 /* A system call is in progress */
288 #define TCB_ATTACHED 00010 /* Process is not our own child */
289 #define TCB_EXITING 00020 /* As far as we know, this process is exiting */
290 #define TCB_SUSPENDED 00040 /* Process has done a wait(4), that can
291 not be allowed to complete just now */
292 #define TCB_BPTSET 00100 /* "Breakpoint" set after fork(2) */
293 #define TCB_SIGTRAPPED 00200 /* Process wanted to block SIGTRAP */
294 #define TCB_FOLLOWFORK 00400 /* Process should have forks followed */
295 #define TCB_REPRINT 01000 /* We should reprint this syscall on exit */
297 # if defined(ALPHA) || defined(SPARC) || defined(POWERPC) || defined(IA64) || defined(HPPA) || defined(SH)
298 # define TCB_WAITEXECVE 02000 /* ignore SIGTRAP after exceve */
300 # define TCB_CLONE_DETACHED 04000 /* CLONE_DETACHED set in creating syscall */
301 # define TCB_CLONE_THREAD 010000 /* CLONE_THREAD set in creating syscall */
302 # define TCB_GROUP_EXITING 020000 /* TCB_EXITING was exit_group, not _exit */
303 # include <sys/syscall.h>
304 # ifndef __NR_exit_group
305 # /* Hack: Most headers around are too old to have __NR_exit_group. */
307 # define __NR_exit_group 405
309 # define __NR_exit_group 252
311 # define __NR_exit_group 1236
312 # elif defined POWERPC
313 # define __NR_exit_group 234
314 # elif defined S390 || defined S390X
315 # define __NR_exit_group 248
317 # define __NR_exit_group 188
318 # endif /* ALPHA et al */
319 # endif /* !__NR_exit_group */
322 /* qualifier flags */
323 #define QUAL_TRACE 0001 /* this system call should be traced */
324 #define QUAL_ABBREV 0002 /* abbreviate the structures of this syscall */
325 #define QUAL_VERBOSE 0004 /* decode the structures of this syscall */
326 #define QUAL_RAW 0010 /* print all args in hex for this syscall */
327 #define QUAL_SIGNAL 0020 /* report events with this signal */
328 #define QUAL_FAULT 0040 /* report events with this fault */
329 #define QUAL_READ 0100 /* dump data read on this file descriptor */
330 #define QUAL_WRITE 0200 /* dump data written to this file descriptor */
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) (qual_flags[(tcp)->scno] & QUAL_VERBOSE)
336 #define abbrev(tcp) (qual_flags[(tcp)->scno] & QUAL_ABBREV)
343 /* Format of syscall return values */
344 #define RVAL_DECIMAL 000 /* decimal format */
345 #define RVAL_HEX 001 /* hex format */
346 #define RVAL_OCTAL 002 /* octal format */
347 #define RVAL_UDECIMAL 003 /* unsigned decimal format */
348 #define RVAL_LDECIMAL 004 /* long decimal format */
349 #define RVAL_LHEX 005 /* long hex format */
350 #define RVAL_LOCTAL 006 /* long octal format */
351 #define RVAL_LUDECIMAL 007 /* long unsigned decimal format */
352 #define RVAL_MASK 007 /* mask for these values */
354 #define RVAL_STR 010 /* Print `auxstr' field after return val */
355 #define RVAL_NONE 020 /* Print nothing */
358 #define offsetof(type, member) (((char *) &(((type *) NULL)->member)) - \
359 ((char *) (type *) NULL))
360 #endif /* !offsetof */
362 /* get offset of member within a user struct */
363 #define uoff(member) offsetof(struct user, member)
365 #define TRACE_FILE 001 /* Trace file-related syscalls. */
366 #define TRACE_IPC 002 /* Trace IPC-related syscalls. */
367 #define TRACE_NETWORK 004 /* Trace network-related syscalls. */
368 #define TRACE_PROCESS 010 /* Trace process-related syscalls. */
369 #define TRACE_SIGNAL 020 /* Trace signal-related syscalls. */
371 extern struct tcb **tcbtab;
372 extern int qual_flags[];
373 extern int debug, followfork, followvfork;
374 extern int rflag, tflag, dtime, cflag, xflag, qflag;
376 extern char *outfname;
377 extern unsigned int nprocs, tcbtabsize;
378 extern int max_strlen;
379 extern struct tcb *tcp_last;
387 extern int set_personality P((int personality));
388 extern char *xlookup P((struct xlat *, int));
389 extern struct tcb *alloctcb P((int));
390 extern struct tcb *pid2tcb P((int));
391 extern void droptcb P((struct tcb *));
393 extern void set_sortby P((char *));
394 extern void set_overhead P((int));
395 extern void qualify P((char *));
396 extern void newoutf P((struct tcb *));
397 extern int get_scno P((struct tcb *));
398 extern int trace_syscall P((struct tcb *));
399 extern void printxval P((struct xlat *, int, char *));
400 extern int printargs P((struct tcb *));
401 extern int addflags P((struct xlat *, int));
402 extern int printflags P((struct xlat *, int));
403 extern int umoven P((struct tcb *, long, int, char *));
404 extern int umovestr P((struct tcb *, long, int, char *));
405 extern int upeek P((int, long, long *));
406 extern void dumpiov P((struct tcb *, int, long));
407 extern void dumpstr P((struct tcb *, long, int));
408 extern void string_quote P((char *str));
409 extern void printstr P((struct tcb *, long, int));
410 extern void printnum P((struct tcb *, long, char *));
411 extern void printpath P((struct tcb *, long));
412 extern void printpathn P((struct tcb *, long, int));
413 extern void printtv P((struct tcb *, long));
414 #ifdef HAVE_SIGINFO_T
415 extern void printsiginfo P((siginfo_t *, int));
417 extern void printsock P((struct tcb *, long, int));
418 extern void print_sock_optmgmt P((struct tcb *, long, int));
419 extern void printrusage P((struct tcb *, long));
420 extern int clearbpt P((struct tcb *));
421 extern int setbpt P((struct tcb *));
422 extern int sigishandled P((struct tcb *, int));
423 extern void printcall P((struct tcb *));
424 extern char *signame P((int));
425 extern void printsignal P((int));
426 extern void printleader P((struct tcb *));
427 extern void printtrailer P((struct tcb *));
428 extern void tabto P((int));
429 extern void call_summary P((FILE *));
430 extern void fake_execve P((struct tcb *, char *, char *[], char *[]));
431 extern void printtv32 P((struct tcb*, long));
432 extern void tprint_iov P((struct tcb *, int, long));
435 extern int internal_clone P((struct tcb *));
437 extern int internal_fork P((struct tcb *));
438 extern int internal_exec P((struct tcb *));
439 extern int internal_wait P((struct tcb *));
440 extern int internal_exit P((struct tcb *));
442 extern char *ioctl_lookup P((long));
443 extern int ioctl_decode P((struct tcb *, long, long));
444 extern int term_ioctl P((struct tcb *, long, long));
445 extern int sock_ioctl P((struct tcb *, long, long));
446 extern int proc_ioctl P((struct tcb *, int, int));
447 extern int stream_ioctl P((struct tcb *, int, int));
449 extern void tv_tv P((struct timeval *, int, int));
450 extern int tv_nz P((struct timeval *));
451 extern int tv_cmp P((struct timeval *, struct timeval *));
452 extern double tv_float P((struct timeval *));
453 extern void tv_add P((struct timeval *, struct timeval *, struct timeval *));
454 extern void tv_sub P((struct timeval *, struct timeval *, struct timeval *));
455 extern void tv_mul P((struct timeval *, struct timeval *, int));
456 extern void tv_div P((struct timeval *, struct timeval *, int));
459 extern int fixvfork P((struct tcb *));
461 #if !(defined(LINUX) && !defined(SPARC))
462 extern long getrval2 P((struct tcb *));
465 extern int proc_open P((struct tcb *tcp, int attaching));
468 #define umove(pid, addr, objp) \
469 umoven((pid), (addr), sizeof *(objp), (char *) (objp))
473 extern void tprintf(const char *fmt, ...)
474 __attribute__ ((format (printf, 1, 2)));
476 extern void tprintf(const char *fmt, ...);
479 extern void tprintf();
482 #ifndef HAVE_STRERROR
483 const char *strerror P((int));
485 #ifndef HAVE_STRSIGNAL
486 const char *strsignal P((int));
489 extern int current_personality;
498 extern struct sysent *sysent;
499 extern int nsyscalls;
501 extern char **errnoent;
510 extern struct ioctlent *ioctlent;
511 extern int nioctlent;
513 extern char **signalent;
516 extern struct ioctlent *ioctlent;
517 extern int nioctlents;
518 extern char **signalent;
521 extern struct ioctlent ioctlent0[];
522 extern int nioctlents0;
523 extern char *signalent0[];
524 extern int nsignals0;
526 #if SUPPORTED_PERSONALITIES >= 2
527 extern struct ioctlent ioctlent1[];
528 extern int nioctlents1;
529 extern char *signalent1[];
530 extern int nsignals1;
531 #endif /* SUPPORTED_PERSONALITIES >= 2 */
533 #if SUPPORTED_PERSONALITIES >= 3
534 extern struct ioctlent ioctlent2[];
535 extern int nioctlents2;
536 extern char *signalent2[];
537 extern int nsignals2;
538 #endif /* SUPPORTED_PERSONALITIES >= 3 */
541 /* ARRGH! off_t args are aligned on 64 bit boundaries! */
542 #define ALIGN64(tcp,arg) \
545 memmove (&tcp->u_arg[arg], &tcp->u_arg[arg + 1], \
546 (tcp->u_nargs - arg - 1) * sizeof tcp->u_arg[0]); \
548 #elif defined(LINUX) && defined(POWERPC) && !defined(__powerpc64__)
549 #define ALIGN64(tcp,arg) \
552 memmove (&tcp->u_arg[arg], &tcp->u_arg[arg + 1], \
553 (tcp->u_nargs - arg - 1) * sizeof tcp->u_arg[0]); \
556 #define ALIGN64(tcp,arg) do { } while (0)
561 /* _l refers to the lower numbered u_arg,
562 * _h refers to the higher numbered u_arg
565 #if HAVE_LITTLE_ENDIAN_LONG_LONG
566 #define LONG_LONG(_l,_h) \
567 ((long long)((unsigned long long)(unsigned)(_l) | ((unsigned long long)(_h)<<32)))
569 #define LONG_LONG(_l,_h) \
570 ((long long)((unsigned long long)(unsigned)(_h) | ((unsigned long long)(_l)<<32)))
578 extern int not_failing_only;