defs.h revision 2e4ffe59b588159eb80e236f068278ba47735932
1/* 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> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 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. 17 * 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. 28 * 29 * $Id$ 30 */ 31 32#ifdef linux 33#include <features.h> 34#endif 35 36#ifdef HAVE_CONFIG_H 37#include "config.h" 38#endif 39 40/* configuration section */ 41#ifndef MAX_QUALS 42#if defined(linux) && defined(MIPS) 43#define MAX_QUALS 4999 /* maximum number of syscalls, signals, etc. */ 44#else 45#define MAX_QUALS 2048 /* maximum number of syscalls, signals, etc. */ 46#endif 47#endif 48#ifndef MAX_PROCS 49#define MAX_PROCS 64 /* maximum number of processes tracable */ 50#endif 51#ifndef DEFAULT_STRLEN 52#define DEFAULT_STRLEN 32 /* default maximum # of bytes printed in 53 `printstr', change with `-s' switch */ 54#endif 55#ifndef DEFAULT_ACOLUMN 56#define DEFAULT_ACOLUMN 40 /* default alignment column for results */ 57#endif 58#ifndef MAX_ARGS 59#define MAX_ARGS 32 /* maximum number of args to a syscall */ 60#endif 61#ifndef DEFAULT_SORTBY 62#define DEFAULT_SORTBY "time" /* default sorting method for call profiling */ 63#endif 64 65#include <sys/types.h> 66#include <unistd.h> 67#include <stdlib.h> 68#include <stdio.h> 69#include <ctype.h> 70#include <string.h> 71#include <sys/time.h> 72#include <errno.h> 73 74#ifdef STDC_HEADERS 75#include <stddef.h> 76#endif /* STDC_HEADERS */ 77 78#if defined(LINUX) 79# if defined(SPARC) 80# define LINUXSPARC 81# endif 82# if defined(ALPHA) 83# define LINUX_64BIT 84# endif 85#endif 86 87#if defined(SVR4) || defined(FREEBSD) 88#define USE_PROCFS 89#else 90#undef USE_PROCFS 91#endif 92 93#ifdef FREEBSD 94#ifndef I386 95#error "FreeBSD support is only for i386 arch right now." 96#endif 97#include <machine/psl.h> 98#include <machine/reg.h> 99#include <sys/syscall.h> 100#endif 101 102#ifdef USE_PROCFS 103#include <sys/procfs.h> 104#ifdef HAVE_MP_PROCFS 105#include <sys/uio.h> 106#endif 107#ifdef FREEBSD 108#include <sys/pioctl.h> 109#endif /* FREEBSD */ 110#else /* !USE_PROCFS */ 111#if defined(LINUXSPARC) && defined(__GLIBC__) 112#include <sys/ptrace.h> 113#else 114/* Work around awkward prototype in ptrace.h. */ 115#define ptrace xptrace 116#include <sys/ptrace.h> 117#undef ptrace 118#ifdef POWERPC 119#define __KERNEL__ 120#include <asm/ptrace.h> 121#undef __KERNEL__ 122/* TEMP */ 123#define UESP PT_R1 124#define EIP PT_NIP 125#define EAX PT_R3 126#define ORIG_EAX PT_ORIG_R3 127#endif 128#ifdef __STDC__ 129#ifdef LINUX 130extern long ptrace(int, int, char *, long); 131#else /* !LINUX */ 132extern int ptrace(int, int, char *, int, ...); 133#endif /* !LINUX */ 134#else /* !__STDC__ */ 135extern int ptrace(); 136#endif /* !__STDC__ */ 137#endif /* !LINUXSPARC */ 138#endif /* !SVR4 */ 139 140#ifdef LINUX 141#if !defined(__GLIBC__) 142#define PTRACE_PEEKUSER PTRACE_PEEKUSR 143#define PTRACE_POKEUSER PTRACE_POKEUSR 144#endif 145#ifdef ALPHA 146# define REG_R0 0 147# define REG_A0 16 148# define REG_A3 19 149# define REG_FP 30 150# define REG_PC 64 151#endif /* ALPHA */ 152#ifdef MIPS 153# define REG_V0 2 154# define REG_A0 4 155# define REG_A3 7 156# define REG_SP 29 157# define REG_EPC 64 158#endif /* MIPS */ 159#endif /* LINUX */ 160 161#define SUPPORTED_PERSONALITIES 1 162#define DEFAULT_PERSONALITY 0 163 164#ifdef LINUXSPARC 165#include <linux/a.out.h> 166#include <asm/psr.h> 167#undef SUPPORTED_PERSONALITIES 168#define SUPPORTED_PERSONALITIES 2 169#endif /* LINUXSPARC */ 170 171 172#ifdef SVR4 173#ifdef HAVE_MP_PROCFS 174extern int mp_ioctl (int f, int c, void *a, int s); 175#define IOCTL(f,c,a) mp_ioctl (f, c, a, sizeof *a) 176#define IOCTL_STATUS(t) \ 177 pread (t->pfd_stat, &t->status, sizeof t->status, 0) 178#define IOCTL_WSTOP(t) \ 179 (IOCTL (t->pfd, PCWSTOP, (char *)NULL) < 0 ? -1 : \ 180 IOCTL_STATUS (t)) 181#define PR_WHY pr_lwp.pr_why 182#define PR_WHAT pr_lwp.pr_what 183#define PR_REG pr_lwp.pr_context.uc_mcontext.gregs 184#define PR_FLAGS pr_lwp.pr_flags 185#define PIOCSTIP PCSTOP 186#define PIOCSET PCSET 187#define PIOCRESET PCRESET 188#define PIOCSTRACE PCSTRACE 189#define PIOCSFAULT PCSFAULT 190#define PIOCWSTOP PCWSTOP 191#define PIOCSTOP PCSTOP 192#define PIOCSENTRY PCSENTRY 193#define PIOCSEXIT PCSEXIT 194#define PIOCRUN PCRUN 195#else 196#define IOCTL ioctl 197#define IOCTL_STATUS(t) ioctl (t->pfd, PIOCSTATUS, &t->status) 198#define IOCTL_WSTOP(t) ioctl (t->pfd, PIOCWSTOP, &t->status) 199#define PR_WHY pr_why 200#define PR_WHAT pr_what 201#define PR_REG pr_reg 202#define PR_FLAGS pr_flags 203#endif 204#endif 205#ifdef FREEBSD 206#define IOCTL ioctl 207#define IOCTL_STATUS(t) ioctl (t->pfd, PIOCSTATUS, &t->status) 208#define IOCTL_WSTOP(t) ioctl (t->pfd, PIOCWAIT, &t->status) 209#define PIOCRUN PIOCCONT 210#define PIOCWSTOP PIOCWAIT 211#define PR_WHY why 212#define PR_WHAT val 213#define PR_FLAGS state 214/* from /usr/src/sys/miscfs/procfs/procfs_vnops.c, 215 status.state = 0 for running, 1 for stopped */ 216#define PR_ASLEEP 1 217#define PR_SYSENTRY S_SCE 218#define PR_SYSEXIT S_SCX 219#define PR_SIGNALLED S_SIG 220#define PR_FAULTED S_CORE 221#endif 222 223/* Trace Control Block */ 224struct tcb { 225 short flags; /* See below for TCB_ values */ 226 int pid; /* Process Id of this entry */ 227 long scno; /* System call number */ 228 int u_nargs; /* System call arguments */ 229 long u_arg[MAX_ARGS]; /* System call arguments */ 230 int u_error; /* Error code */ 231 long u_rval; /* (first) return value */ 232#ifdef HAVE_LONG_LONG 233 long long u_lrval; /* long long return value */ 234#endif 235 FILE *outf; /* Output file for this process */ 236 const char *auxstr; /* Auxiliary info from syscall (see RVAL_STR) */ 237 struct timeval stime; /* System time usage as of last process wait */ 238 struct timeval dtime; /* Delta for system time usage */ 239 struct timeval etime; /* Syscall entry time */ 240 /* Support for tracing forked processes */ 241 struct tcb *parent; /* Parent of this process */ 242 int nchildren; /* # of traced children */ 243 int waitpid; /* pid(s) this process is waiting for */ 244 /* (1st arg of wait4()) */ 245 long baddr; /* `Breakpoint' address */ 246 long inst[2]; /* Instructions on above */ 247 int pfd; /* proc file descriptor */ 248#ifdef SVR4 249#ifdef HAVE_MP_PROCFS 250 int pfd_stat; 251 int pfd_as; 252 pstatus_t status; 253#else 254 prstatus_t status; /* procfs status structure */ 255#endif 256#endif 257#ifdef FREEBSD 258 struct procfs_status status; 259 int pfd_reg; 260 int pfd_status; 261#endif 262}; 263 264/* TCB flags */ 265#define TCB_STARTUP 00001 /* We have just begun ptracing this process */ 266#define TCB_INUSE 00002 /* This table entry is in use */ 267#define TCB_INSYSCALL 00004 /* A system call is in progress */ 268#define TCB_ATTACHED 00010 /* Process is not our own child */ 269#define TCB_EXITING 00020 /* As far as we know, this process is exiting */ 270#define TCB_SUSPENDED 00040 /* Process has done a wait(4), that can 271 not be allowed to complete just now */ 272#define TCB_BPTSET 00100 /* "Breakpoint" set after fork(2) */ 273#define TCB_SIGTRAPPED 00200 /* Process wanted to block SIGTRAP */ 274#define TCB_FOLLOWFORK 00400 /* Process should have forks followed */ 275#define TCB_REPRINT 01000 /* We should reprint this syscall on exit */ 276#ifdef LINUX 277#if defined(ALPHA) || defined(SPARC) || defined(POWERPC) 278#define TCB_WAITEXECVE 02000 /* ignore SIGTRAP after exceve */ 279#endif /* ALPHA */ 280#endif /* LINUX */ 281 282/* qualifier flags */ 283#define QUAL_TRACE 0001 /* this system call should be traced */ 284#define QUAL_ABBREV 0002 /* abbreviate the structures of this syscall */ 285#define QUAL_VERBOSE 0004 /* decode the structures of this syscall */ 286#define QUAL_RAW 0010 /* print all args in hex for this syscall */ 287#define QUAL_SIGNAL 0020 /* report events with this signal */ 288#define QUAL_FAULT 0040 /* report events with this fault */ 289#define QUAL_READ 0100 /* dump data read on this file descriptor */ 290#define QUAL_WRITE 0200 /* dump data written to this file descriptor */ 291 292#define entering(tcp) (!((tcp)->flags & TCB_INSYSCALL)) 293#define exiting(tcp) ((tcp)->flags & TCB_INSYSCALL) 294#define syserror(tcp) ((tcp)->u_error != 0) 295#define verbose(tcp) (qual_flags[(tcp)->scno] & QUAL_VERBOSE) 296#define abbrev(tcp) (qual_flags[(tcp)->scno] & QUAL_ABBREV) 297#define waiting_parent(tcp) \ 298 (tcp->parent && \ 299 (tcp->parent->flags & TCB_SUSPENDED) && \ 300 (tcp->parent->waitpid <= 0 || tcp->parent->waitpid == tcp->pid)) 301 302struct xlat { 303 int val; 304 char *str; 305}; 306 307/* Format of syscall return values */ 308#define RVAL_DECIMAL 000 /* decimal format */ 309#define RVAL_HEX 001 /* hex format */ 310#define RVAL_OCTAL 002 /* octal format */ 311#define RVAL_UDECIMAL 003 /* unsigned decimal format */ 312#define RVAL_LDECIMAL 004 /* long decimal format */ 313#define RVAL_LHEX 005 /* long hex format */ 314#define RVAL_LOCTAL 006 /* long octal format */ 315#define RVAL_LUDECIMAL 007 /* long unsigned decimal format */ 316#define RVAL_MASK 007 /* mask for these values */ 317 318#define RVAL_STR 010 /* Print `auxstr' field after return val */ 319#define RVAL_NONE 020 /* Print nothing */ 320 321#ifndef offsetof 322#define offsetof(type, member) (((char *) &(((type *) NULL)->member)) - \ 323 ((char *) (type *) NULL)) 324#endif /* !offsetof */ 325 326/* get offset of member within a user struct */ 327#define uoff(member) offsetof(struct user, member) 328 329#define TRACE_FILE 001 /* Trace file-related syscalls. */ 330#define TRACE_IPC 002 /* Trace IPC-related syscalls. */ 331#define TRACE_NETWORK 004 /* Trace network-related syscalls. */ 332#define TRACE_PROCESS 010 /* Trace process-related syscalls. */ 333#define TRACE_SIGNAL 020 /* Trace signal-related syscalls. */ 334 335extern struct tcb tcbtab[]; 336extern int qual_flags[]; 337extern int debug, followfork, followvfork; 338extern int rflag, tflag, dtime, cflag, xflag, qflag; 339extern int acolumn; 340extern char *outfname; 341extern int nprocs; 342extern int max_strlen; 343extern struct tcb *tcp_last; 344 345#ifdef __STDC__ 346#define P(args) args 347#else 348#define P(args) () 349#endif 350 351extern int set_personality P((int personality)); 352extern char *xlookup P((struct xlat *, int)); 353extern struct tcb *alloctcb P((int)); 354extern void droptcb P((struct tcb *)); 355 356extern void set_sortby P((char *)); 357extern void set_overhead P((int)); 358extern void qualify P((char *)); 359extern void newoutf P((struct tcb *)); 360extern int get_scno P((struct tcb *)); 361extern int trace_syscall P((struct tcb *)); 362extern void printxval P((struct xlat *, int, char *)); 363extern int printargs P((struct tcb *)); 364extern int addflags P((struct xlat *, int)); 365extern int printflags P((struct xlat *, int)); 366extern int umoven P((struct tcb *, long, int, char *)); 367extern int umovestr P((struct tcb *, long, int, char *)); 368extern int upeek P((int, long, long *)); 369extern void dumpstr P((struct tcb *, long, int)); 370extern void string_quote P((char *str)); 371extern void printstr P((struct tcb *, long, int)); 372extern void printnum P((struct tcb *, long, char *)); 373extern void printpath P((struct tcb *, long)); 374extern void printpathn P((struct tcb *, long, int)); 375extern void printtv P((struct tcb *, long)); 376extern void printsock P((struct tcb *, long, int)); 377extern void printrusage P((struct tcb *, long)); 378extern int clearbpt P((struct tcb *)); 379extern int setbpt P((struct tcb *)); 380extern int sigishandled P((struct tcb *, int)); 381extern void printcall P((struct tcb *)); 382extern char *signame P((int)); 383extern void printsignal P((int)); 384extern void printleader P((struct tcb *)); 385extern void printtrailer P((struct tcb *)); 386extern void tabto P((int)); 387extern void call_summary P((FILE *)); 388extern void fake_execve P((struct tcb *, char *, char *[], char *[])); 389extern void printtv32 P((struct tcb*, long)); 390 391#ifdef LINUX 392extern int internal_clone P((struct tcb *)); 393#endif 394extern int internal_fork P((struct tcb *)); 395extern int internal_exec P((struct tcb *)); 396extern int internal_wait P((struct tcb *)); 397extern int internal_exit P((struct tcb *)); 398 399extern char *ioctl_lookup P((long)); 400extern int ioctl_decode P((struct tcb *, long, long)); 401extern int term_ioctl P((struct tcb *, long, long)); 402extern int sock_ioctl P((struct tcb *, long, long)); 403extern int proc_ioctl P((struct tcb *, int, int)); 404extern int stream_ioctl P((struct tcb *, int, int)); 405 406extern void tv_tv P((struct timeval *, int, int)); 407extern int tv_nz P((struct timeval *)); 408extern int tv_cmp P((struct timeval *, struct timeval *)); 409extern double tv_float P((struct timeval *)); 410extern void tv_add P((struct timeval *, struct timeval *, struct timeval *)); 411extern void tv_sub P((struct timeval *, struct timeval *, struct timeval *)); 412extern void tv_mul P((struct timeval *, struct timeval *, int)); 413extern void tv_div P((struct timeval *, struct timeval *, int)); 414 415#ifdef SUNOS4 416extern int fixvfork P((struct tcb *)); 417#endif 418#if !(defined(LINUX) && !defined(SPARC)) 419extern long getrval2 P((struct tcb *)); 420#endif 421#ifdef USE_PROCFS 422extern int proc_open P((struct tcb *tcp, int attaching)); 423#endif 424 425#define umove(pid, addr, objp) \ 426 umoven((pid), (addr), sizeof *(objp), (char *) (objp)) 427 428#ifdef __STDC__ 429#ifdef __GNUC__ 430extern void tprintf(const char *fmt, ...) 431 __attribute__ ((format (printf, 1, 2))); 432#else 433extern void tprintf(const char *fmt, ...); 434#endif 435#else 436extern void tprintf(); 437#endif 438 439#ifndef HAVE_STRERROR 440const char *strerror P((int)); 441#endif 442#ifndef HAVE_STRSIGNAL 443const char *strsignal P((int)); 444#endif 445 446extern int current_personality; 447 448struct sysent { 449 int nargs; 450 int sys_flags; 451 int (*sys_func)(); 452 char *sys_name; 453}; 454 455extern struct sysent *sysent; 456extern int nsyscalls; 457 458extern char **errnoent; 459extern int nerrnos; 460 461struct ioctlent { 462 char *doth; 463 char *symbol; 464 unsigned long code; 465}; 466 467extern struct ioctlent *ioctlent; 468extern int nioctlent; 469 470extern char **signalent; 471extern int nsignals; 472 473extern struct ioctlent *ioctlent; 474extern int nioctlents; 475extern char **signalent; 476extern int nsignals; 477 478extern struct ioctlent ioctlent0[]; 479extern int nioctlents0; 480extern char *signalent0[]; 481extern int nsignals0; 482 483#if SUPPORTED_PERSONALITIES >= 2 484extern struct ioctlent ioctlent1[]; 485extern int nioctlents1; 486extern char *signalent1[]; 487extern int nsignals1; 488#endif /* SUPPORTED_PERSONALITIES >= 2 */ 489 490#if SUPPORTED_PERSONALITIES >= 3 491extern struct ioctlent ioctlent2[]; 492extern int nioctlents2; 493extern char *signalent2[]; 494extern int nsignals2; 495#endif /* SUPPORTED_PERSONALITIES >= 3 */ 496