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>
131 #define ORIG_EAX PT_ORIG_R3
135 extern long ptrace(int, int, char *, long);
137 extern int ptrace(int, int, char *, int, ...);
139 #else /* !__STDC__ */
141 #endif /* !__STDC__ */
142 #endif /* !LINUXSPARC */
146 #if !defined(__GLIBC__)
147 #define PTRACE_PEEKUSER PTRACE_PEEKUSR
148 #define PTRACE_POKEUSER PTRACE_POKEUSR
165 # define PT_GR20 (20*4)
166 # define PT_GR26 (26*4)
167 # define PT_GR28 (28*4)
168 # define PT_IAOQ0 (106*4)
169 # define PT_IAOQ1 (107*4)
173 #define SUPPORTED_PERSONALITIES 1
174 #define DEFAULT_PERSONALITY 0
177 #include <linux/a.out.h>
179 #undef SUPPORTED_PERSONALITIES
180 #define SUPPORTED_PERSONALITIES 2
181 #endif /* LINUXSPARC */
184 #undef SUPPORTED_PERSONALITIES
185 #define SUPPORTED_PERSONALITIES 2
189 #ifdef HAVE_MP_PROCFS
190 extern int mp_ioctl (int f, int c, void *a, int s);
191 #define IOCTL(f,c,a) mp_ioctl (f, c, a, sizeof *a)
192 #define IOCTL_STATUS(t) \
193 pread (t->pfd_stat, &t->status, sizeof t->status, 0)
194 #define IOCTL_WSTOP(t) \
195 (IOCTL (t->pfd, PCWSTOP, (char *)NULL) < 0 ? -1 : \
197 #define PR_WHY pr_lwp.pr_why
198 #define PR_WHAT pr_lwp.pr_what
199 #define PR_REG pr_lwp.pr_context.uc_mcontext.gregs
200 #define PR_FLAGS pr_lwp.pr_flags
201 #define PR_SYSCALL pr_lwp.pr_syscall
202 #define PR_INFO pr_lwp.pr_info
203 #define PIOCSTIP PCSTOP
204 #define PIOCSET PCSET
205 #define PIOCRESET PCRESET
206 #define PIOCSTRACE PCSTRACE
207 #define PIOCSFAULT PCSFAULT
208 #define PIOCWSTOP PCWSTOP
209 #define PIOCSTOP PCSTOP
210 #define PIOCSENTRY PCSENTRY
211 #define PIOCSEXIT PCSEXIT
212 #define PIOCRUN PCRUN
215 #define IOCTL_STATUS(t) ioctl (t->pfd, PIOCSTATUS, &t->status)
216 #define IOCTL_WSTOP(t) ioctl (t->pfd, PIOCWSTOP, &t->status)
217 #define PR_WHY pr_why
218 #define PR_WHAT pr_what
219 #define PR_REG pr_reg
220 #define PR_FLAGS pr_flags
221 #define PR_SYSCALL pr_syscall
222 #define PR_INFO pr_info
227 #define IOCTL_STATUS(t) ioctl (t->pfd, PIOCSTATUS, &t->status)
228 #define IOCTL_WSTOP(t) ioctl (t->pfd, PIOCWAIT, &t->status)
229 #define PIOCRUN PIOCCONT
230 #define PIOCWSTOP PIOCWAIT
233 #define PR_FLAGS state
234 /* from /usr/src/sys/miscfs/procfs/procfs_vnops.c,
235 status.state = 0 for running, 1 for stopped */
237 #define PR_SYSENTRY S_SCE
238 #define PR_SYSEXIT S_SCX
239 #define PR_SIGNALLED S_SIG
240 #define PR_FAULTED S_CORE
243 /* Trace Control Block */
245 short flags; /* See below for TCB_ values */
246 int pid; /* Process Id of this entry */
247 long scno; /* System call number */
248 int u_nargs; /* System call arguments */
249 long u_arg[MAX_ARGS]; /* System call arguments */
250 int u_error; /* Error code */
251 long u_rval; /* (first) return value */
252 #ifdef HAVE_LONG_LONG
253 long long u_lrval; /* long long return value */
255 FILE *outf; /* Output file for this process */
256 const char *auxstr; /* Auxiliary info from syscall (see RVAL_STR) */
257 struct timeval stime; /* System time usage as of last process wait */
258 struct timeval dtime; /* Delta for system time usage */
259 struct timeval etime; /* Syscall entry time */
260 /* Support for tracing forked processes */
261 struct tcb *parent; /* Parent of this process */
262 int nchildren; /* # of traced children */
263 int waitpid; /* pid(s) this process is waiting for */
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 */
302 /* qualifier flags */
303 #define QUAL_TRACE 0001 /* this system call should be traced */
304 #define QUAL_ABBREV 0002 /* abbreviate the structures of this syscall */
305 #define QUAL_VERBOSE 0004 /* decode the structures of this syscall */
306 #define QUAL_RAW 0010 /* print all args in hex for this syscall */
307 #define QUAL_SIGNAL 0020 /* report events with this signal */
308 #define QUAL_FAULT 0040 /* report events with this fault */
309 #define QUAL_READ 0100 /* dump data read on this file descriptor */
310 #define QUAL_WRITE 0200 /* dump data written to this file descriptor */
312 #define entering(tcp) (!((tcp)->flags & TCB_INSYSCALL))
313 #define exiting(tcp) ((tcp)->flags & TCB_INSYSCALL)
314 #define syserror(tcp) ((tcp)->u_error != 0)
315 #define verbose(tcp) (qual_flags[(tcp)->scno] & QUAL_VERBOSE)
316 #define abbrev(tcp) (qual_flags[(tcp)->scno] & QUAL_ABBREV)
317 #define waiting_parent(tcp) \
319 (tcp->parent->flags & TCB_SUSPENDED) && \
320 (tcp->parent->waitpid <= 0 || tcp->parent->waitpid == tcp->pid))
327 /* Format of syscall return values */
328 #define RVAL_DECIMAL 000 /* decimal format */
329 #define RVAL_HEX 001 /* hex format */
330 #define RVAL_OCTAL 002 /* octal format */
331 #define RVAL_UDECIMAL 003 /* unsigned decimal format */
332 #define RVAL_LDECIMAL 004 /* long decimal format */
333 #define RVAL_LHEX 005 /* long hex format */
334 #define RVAL_LOCTAL 006 /* long octal format */
335 #define RVAL_LUDECIMAL 007 /* long unsigned decimal format */
336 #define RVAL_MASK 007 /* mask for these values */
338 #define RVAL_STR 010 /* Print `auxstr' field after return val */
339 #define RVAL_NONE 020 /* Print nothing */
342 #define offsetof(type, member) (((char *) &(((type *) NULL)->member)) - \
343 ((char *) (type *) NULL))
344 #endif /* !offsetof */
346 /* get offset of member within a user struct */
347 #define uoff(member) offsetof(struct user, member)
349 #define TRACE_FILE 001 /* Trace file-related syscalls. */
350 #define TRACE_IPC 002 /* Trace IPC-related syscalls. */
351 #define TRACE_NETWORK 004 /* Trace network-related syscalls. */
352 #define TRACE_PROCESS 010 /* Trace process-related syscalls. */
353 #define TRACE_SIGNAL 020 /* Trace signal-related syscalls. */
355 extern struct tcb **tcbtab;
356 extern int qual_flags[];
357 extern int debug, followfork, followvfork;
358 extern int rflag, tflag, dtime, cflag, xflag, qflag;
360 extern char *outfname;
361 extern unsigned int nprocs, tcbtabsize;
362 extern int max_strlen;
363 extern struct tcb *tcp_last;
371 extern int set_personality P((int personality));
372 extern char *xlookup P((struct xlat *, int));
373 extern struct tcb *alloctcb P((int));
374 extern void droptcb P((struct tcb *));
376 extern void set_sortby P((char *));
377 extern void set_overhead P((int));
378 extern void qualify P((char *));
379 extern void newoutf P((struct tcb *));
380 extern int get_scno P((struct tcb *));
381 extern int trace_syscall P((struct tcb *));
382 extern void printxval P((struct xlat *, int, char *));
383 extern int printargs P((struct tcb *));
384 extern int addflags P((struct xlat *, int));
385 extern int printflags P((struct xlat *, int));
386 extern int umoven P((struct tcb *, long, int, char *));
387 extern int umovestr P((struct tcb *, long, int, char *));
388 extern int upeek P((int, long, long *));
389 extern void dumpiov P((struct tcb *, int, long));
390 extern void dumpstr P((struct tcb *, long, int));
391 extern void string_quote P((char *str));
392 extern void printstr P((struct tcb *, long, int));
393 extern void printnum P((struct tcb *, long, char *));
394 extern void printpath P((struct tcb *, long));
395 extern void printpathn P((struct tcb *, long, int));
396 extern void printtv P((struct tcb *, long));
397 #ifdef HAVE_SIGINFO_T
398 extern void printsiginfo P((siginfo_t *, int));
400 extern void printsock P((struct tcb *, long, int));
401 extern void print_sock_optmgmt P((struct tcb *, long, int));
402 extern void printrusage P((struct tcb *, long));
403 extern int clearbpt P((struct tcb *));
404 extern int setbpt P((struct tcb *));
405 extern int sigishandled P((struct tcb *, int));
406 extern void printcall P((struct tcb *));
407 extern char *signame P((int));
408 extern void printsignal P((int));
409 extern void printleader P((struct tcb *));
410 extern void printtrailer P((struct tcb *));
411 extern void tabto P((int));
412 extern void call_summary P((FILE *));
413 extern void fake_execve P((struct tcb *, char *, char *[], char *[]));
414 extern void printtv32 P((struct tcb*, long));
415 extern void tprint_iov P((struct tcb *, int, long));
418 extern int internal_clone P((struct tcb *));
420 extern int internal_fork P((struct tcb *));
421 extern int internal_exec P((struct tcb *));
422 extern int internal_wait P((struct tcb *));
423 extern int internal_exit P((struct tcb *));
425 extern char *ioctl_lookup P((long));
426 extern int ioctl_decode P((struct tcb *, long, long));
427 extern int term_ioctl P((struct tcb *, long, long));
428 extern int sock_ioctl P((struct tcb *, long, long));
429 extern int proc_ioctl P((struct tcb *, int, int));
430 extern int stream_ioctl P((struct tcb *, int, int));
432 extern void tv_tv P((struct timeval *, int, int));
433 extern int tv_nz P((struct timeval *));
434 extern int tv_cmp P((struct timeval *, struct timeval *));
435 extern double tv_float P((struct timeval *));
436 extern void tv_add P((struct timeval *, struct timeval *, struct timeval *));
437 extern void tv_sub P((struct timeval *, struct timeval *, struct timeval *));
438 extern void tv_mul P((struct timeval *, struct timeval *, int));
439 extern void tv_div P((struct timeval *, struct timeval *, int));
442 extern int fixvfork P((struct tcb *));
444 #if !(defined(LINUX) && !defined(SPARC))
445 extern long getrval2 P((struct tcb *));
448 extern int proc_open P((struct tcb *tcp, int attaching));
451 #define umove(pid, addr, objp) \
452 umoven((pid), (addr), sizeof *(objp), (char *) (objp))
456 extern void tprintf(const char *fmt, ...)
457 __attribute__ ((format (printf, 1, 2)));
459 extern void tprintf(const char *fmt, ...);
462 extern void tprintf();
465 #ifndef HAVE_STRERROR
466 const char *strerror P((int));
468 #ifndef HAVE_STRSIGNAL
469 const char *strsignal P((int));
472 extern int current_personality;
481 extern struct sysent *sysent;
482 extern int nsyscalls;
484 extern char **errnoent;
493 extern struct ioctlent *ioctlent;
494 extern int nioctlent;
496 extern char **signalent;
499 extern struct ioctlent *ioctlent;
500 extern int nioctlents;
501 extern char **signalent;
504 extern struct ioctlent ioctlent0[];
505 extern int nioctlents0;
506 extern char *signalent0[];
507 extern int nsignals0;
509 #if SUPPORTED_PERSONALITIES >= 2
510 extern struct ioctlent ioctlent1[];
511 extern int nioctlents1;
512 extern char *signalent1[];
513 extern int nsignals1;
514 #endif /* SUPPORTED_PERSONALITIES >= 2 */
516 #if SUPPORTED_PERSONALITIES >= 3
517 extern struct ioctlent ioctlent2[];
518 extern int nioctlents2;
519 extern char *signalent2[];
520 extern int nsignals2;
521 #endif /* SUPPORTED_PERSONALITIES >= 3 */
524 /* ARRGH! off_t args are aligned on 64 bit boundaries! */
525 #define ALIGN64(tcp,arg) \
528 memmove (&tcp->u_arg[arg], &tcp->u_arg[arg + 1], \
529 (tcp->u_nargs - arg - 1) * sizeof tcp->u_arg[0]); \
532 #define ALIGN64(tcp,arg) do { } while (0)
537 /* _l refers to the lower numbered u_arg,
538 * _h refers to the higher numbered u_arg
541 #if HAVE_LITTLE_ENDIAN_LONG_LONG
542 #define LONG_LONG(_l,_h) \
543 ((long long)((unsigned long long)(unsigned)(_l) | ((unsigned long long)(_h)<<32)))
545 #define LONG_LONG(_l,_h) \
546 ((long long)((unsigned long long)(unsigned)(_h) | ((unsigned long long)(_l)<<32)))
554 extern int not_failing_only;