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strace/defs.h

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/*
* Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl>
* Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
* Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id$
*/
#ifdef linux
#include <features.h>
#endif
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
/* configuration section */
#ifndef MAX_QUALS
#if defined(linux) && defined(MIPS)
#define MAX_QUALS 4999 /* maximum number of syscalls, signals, etc. */
#else
#define MAX_QUALS 2048 /* maximum number of syscalls, signals, etc. */
#endif
#ifndef MAX_PROCS
#define MAX_PROCS 64 /* maximum number of processes tracable */
#endif
#ifndef DEFAULT_STRLEN
#define DEFAULT_STRLEN 32 /* default maximum # of bytes printed in
`printstr', change with `-s' switch */
#endif
#ifndef DEFAULT_ACOLUMN
#define DEFAULT_ACOLUMN 40 /* default alignment column for results */
#endif
#ifndef MAX_ARGS
#define MAX_ARGS 32 /* maximum number of args to a syscall */
#endif
#ifndef DEFAULT_SORTBY
#define DEFAULT_SORTBY "time" /* default sorting method for call profiling */
#endif
#include <sys/types.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include <sys/time.h>
#include <errno.h>
#ifdef STDC_HEADERS
#include <stddef.h>
#endif /* STDC_HEADERS */
#if defined(LINUX)
# if defined(SPARC)
# define LINUXSPARC
# endif
# if defined(ALPHA)
# define LINUX_64BIT
# endif
#endif
#ifdef SVR4
#include <sys/procfs.h>
#ifdef HAVE_MP_PROCFS
#include <sys/uio.h>
#endif
#else /* !SVR4 */
#if defined(LINUXSPARC) && defined(__GLIBC__)
#include <sys/ptrace.h>
#else
/* Work around awkward prototype in ptrace.h. */
#define ptrace xptrace
#include <sys/ptrace.h>
#undef ptrace
#ifdef POWERPC
#define __KERNEL__
#include <asm/ptrace.h>
#undef __KERNEL__
/* TEMP */
#define UESP PT_R1
#define EIP PT_NIP
#define EAX PT_R3
#define ORIG_EAX PT_ORIG_R3
#endif
#ifdef __STDC__
#ifdef LINUX
extern long ptrace(int, int, char *, long);
#else /* !LINUX */
extern int ptrace(int, int, char *, int, ...);
#endif /* !LINUX */
#else /* !__STDC__ */
extern int ptrace();
#endif /* !__STDC__ */
#endif /* !LINUXSPARC */
#endif /* !SVR4 */
#ifdef LINUX
#if !defined(__GLIBC__)
#define PTRACE_PEEKUSER PTRACE_PEEKUSR
#define PTRACE_POKEUSER PTRACE_POKEUSR
#endif
#ifdef ALPHA
# define REG_R0 0
# define REG_A0 16
# define REG_A3 19
# define REG_FP 30
# define REG_PC 64
#endif /* ALPHA */
#ifdef MIPS
# define REG_V0 2
# define REG_A0 4
# define REG_A3 7
# define REG_SP 29
# define REG_EPC 64
#endif /* MIPS */
#endif /* LINUX */
#define SUPPORTED_PERSONALITIES 1
#define DEFAULT_PERSONALITY 0
#ifdef LINUXSPARC
#include <linux/a.out.h>
#include <asm/psr.h>
#undef SUPPORTED_PERSONALITIES
#define SUPPORTED_PERSONALITIES 2
#endif /* LINUXSPARC */
#ifdef SVR4
#ifdef HAVE_MP_PROCFS
extern int mp_ioctl (int f, int c, void *a, int s);
#define IOCTL(f,c,a) mp_ioctl (f, c, a, sizeof *a)
#define IOCTL_STATUS(t) \
pread (t->pfd_stat, &t->status, sizeof t->status, 0)
#define IOCTL_WSTOP(t) \
(IOCTL (t->pfd, PCWSTOP, NULL) < 0 ? -1 : \
IOCTL_STATUS (t))
#define PR_WHY pr_lwp.pr_why
#define PR_WHAT pr_lwp.pr_what
#define PR_REG pr_lwp.pr_context.uc_mcontext.gregs
#define PR_FLAGS pr_lwp.pr_flags
#define PIOCSTIP PCSTOP
#define PIOCSET PCSET
#define PIOCRESET PCRESET
#define PIOCSTRACE PCSTRACE
#define PIOCSFAULT PCSFAULT
#define PIOCWSTOP PCWSTOP
#define PIOCSTOP PCSTOP
#define PIOCSENTRY PCSENTRY
#define PIOCSEXIT PCSEXIT
#define PIOCRUN PCRUN
#else
#define IOCTL ioctl
#define IOCTL_STATUS(t) ioctl (t->pfd, PIOCSTATUS, &t->status)
#define IOCTL_WSTOP(t) ioctl (t->pfd, PIOCWSTOP, &t->status)
#define PR_WHY pr_why
#define PR_WHAT pr_what
#define PR_REG pr_reg
#define PR_FLAGS pr_flags
#endif
#endif
/* Trace Control Block */
struct tcb {
short flags; /* See below for TCB_ values */
int pid; /* Process Id of this entry */
long scno; /* System call number */
int u_nargs; /* System call arguments */
long u_arg[MAX_ARGS]; /* System call arguments */
int u_error; /* Error code */
long u_rval; /* (first) return value */
FILE *outf; /* Output file for this process */
char *auxstr; /* Auxiliary info from syscall (see RVAL_STR) */
struct timeval stime; /* System time usage as of last process wait */
struct timeval dtime; /* Delta for system time usage */
struct timeval etime; /* Syscall entry time */
/* Support for tracing forked processes */
struct tcb *parent; /* Parent of this process */
int nchildren; /* # of traced children */
int waitpid; /* pid(s) this process is waiting for */
/* (1st arg of wait4()) */
long baddr; /* `Breakpoint' address */
long inst[2]; /* Instructions on above */
int pfd; /* proc file descriptor */
#ifdef SVR4
#ifdef HAVE_MP_PROCFS
int pfd_stat;
int pfd_as;
pstatus_t status;
#else
prstatus_t status; /* procfs status structure */
#endif
#endif
};
/* TCB flags */
#define TCB_STARTUP 00001 /* We have just begun ptracing this process */
#define TCB_INUSE 00002 /* This table entry is in use */
#define TCB_INSYSCALL 00004 /* A system call is in progress */
#define TCB_ATTACHED 00010 /* Process is not our own child */
#define TCB_EXITING 00020 /* As far as we know, this process is exiting */
#define TCB_SUSPENDED 00040 /* Process has done a wait(4), that can
not be allowed to complete just now */
#define TCB_BPTSET 00100 /* "Breakpoint" set after fork(2) */
#define TCB_SIGTRAPPED 00200 /* Process wanted to block SIGTRAP */
#define TCB_FOLLOWFORK 00400 /* Process should have forks followed */
#define TCB_REPRINT 01000 /* We should reprint this syscall on exit */
#ifdef LINUX
#if defined(ALPHA) || defined(SPARC) || defined(POWERPC)
#define TCB_WAITEXECVE 02000 /* ignore SIGTRAP after exceve */
#endif /* ALPHA */
#endif /* LINUX */
/* qualifier flags */
#define QUAL_TRACE 0001 /* this system call should be traced */
#define QUAL_ABBREV 0002 /* abbreviate the structures of this syscall */
#define QUAL_VERBOSE 0004 /* decode the structures of this syscall */
#define QUAL_RAW 0010 /* print all args in hex for this syscall */
#define QUAL_SIGNAL 0020 /* report events with this signal */
#define QUAL_FAULT 0040 /* report events with this fault */
#define QUAL_READ 0100 /* dump data read on this file descriptor */
#define QUAL_WRITE 0200 /* dump data written to this file descriptor */
#define entering(tcp) (!((tcp)->flags & TCB_INSYSCALL))
#define exiting(tcp) ((tcp)->flags & TCB_INSYSCALL)
#define syserror(tcp) ((tcp)->u_error != 0)
#define verbose(tcp) (qual_flags[(tcp)->scno] & QUAL_VERBOSE)
#define abbrev(tcp) (qual_flags[(tcp)->scno] & QUAL_ABBREV)
#define waiting_parent(tcp) \
(tcp->parent && \
(tcp->parent->flags & TCB_SUSPENDED) && \
(tcp->parent->waitpid <= 0 || tcp->parent->waitpid == tcp->pid))
struct xlat {
int val;
char *str;
};
/* Format of syscall return values */
#define RVAL_DECIMAL 000 /* decimal format */
#define RVAL_HEX 001 /* hex format */
#define RVAL_OCTAL 002 /* octal format */
#define RVAL_UDECIMAL 003 /* unsigned decimal format */
#define RVAL_MASK 007 /* mask for these values */
#define RVAL_STR 010 /* Print `auxstr' field after return val */
#define RVAL_NONE 020 /* Print nothing */
#ifndef offsetof
#define offsetof(type, member) (((char *) &(((type *) NULL)->member)) - \
((char *) (type *) NULL))
#endif /* !offsetof */
/* get offset of member within a user struct */
#define uoff(member) offsetof(struct user, member)
#define TRACE_FILE 001 /* Trace file-related syscalls. */
#define TRACE_IPC 002 /* Trace IPC-related syscalls. */
#define TRACE_NETWORK 004 /* Trace network-related syscalls. */
#define TRACE_PROCESS 010 /* Trace process-related syscalls. */
#define TRACE_SIGNAL 020 /* Trace signal-related syscalls. */
extern struct tcb tcbtab[];
extern int qual_flags[];
extern int debug, followfork, followvfork;
extern int rflag, tflag, dtime, cflag, xflag, qflag;
extern int acolumn;
extern char *outfname;
extern int nprocs;
extern int max_strlen;
extern struct tcb *tcp_last;
#ifdef __STDC__
#define P(args) args
#else
#define P(args) ()
#endif
extern int set_personality P((int personality));
extern char *xlookup P((struct xlat *, int));
extern struct tcb *alloctcb P((int));
extern void droptcb P((struct tcb *));
extern void set_sortby P((char *));
extern void set_overhead P((int));
extern void qualify P((char *));
extern void newoutf P((struct tcb *));
extern int trace_syscall P((struct tcb *));
extern void printxval P((struct xlat *, int, char *));
extern int printargs P((struct tcb *));
extern int addflags P((struct xlat *, int));
extern int printflags P((struct xlat *, int));
extern int umoven P((struct tcb *, long, int, char *));
extern int umovestr P((struct tcb *, long, int, char *));
extern int upeek P((int, long, long *));
extern void dumpstr P((struct tcb *, long, int));
extern void string_quote P((char *str));
extern void printstr P((struct tcb *, long, int));
extern void printnum P((struct tcb *, long, char *));
extern void printpath P((struct tcb *, long));
extern void printpathn P((struct tcb *, long, int));
extern void printtv P((struct tcb *, long));
extern void printsock P((struct tcb *, long, int));
extern void printrusage P((struct tcb *, long));
extern int clearbpt P((struct tcb *));
extern int setbpt P((struct tcb *));
extern int sigishandled P((struct tcb *, int));
extern void printcall P((struct tcb *));
extern char *signame P((int));
extern void printsignal P((int));
extern void printleader P((struct tcb *));
extern void printtrailer P((struct tcb *));
extern void tabto P((int));
extern void call_summary P((FILE *));
extern void fake_execve P((struct tcb *, char *, char *[], char *[]));
extern void printtv32 P((struct tcb*, long));
#ifdef LINUX
extern int internal_clone P((struct tcb *));
#endif
extern int internal_fork P((struct tcb *));
extern int internal_exec P((struct tcb *));
extern int internal_wait P((struct tcb *));
extern int internal_exit P((struct tcb *));
extern char *ioctl_lookup P((long));
extern int ioctl_decode P((struct tcb *, long, long));
extern int term_ioctl P((struct tcb *, long, long));
extern int sock_ioctl P((struct tcb *, long, long));
extern int proc_ioctl P((struct tcb *, int, int));
extern int stream_ioctl P((struct tcb *, int, int));
extern void tv_tv P((struct timeval *, int, int));
extern int tv_nz P((struct timeval *));
extern int tv_cmp P((struct timeval *, struct timeval *));
extern double tv_float P((struct timeval *));
extern void tv_add P((struct timeval *, struct timeval *, struct timeval *));
extern void tv_sub P((struct timeval *, struct timeval *, struct timeval *));
extern void tv_mul P((struct timeval *, struct timeval *, int));
extern void tv_div P((struct timeval *, struct timeval *, int));
#ifdef SUNOS4
extern int fixvfork P((struct tcb *));
#endif
#if !(defined(LINUX) && !defined(SPARC))
extern long getrval2 P((struct tcb *));
#endif
#ifdef SVR4
extern int proc_open P((struct tcb *tcp, int attaching));
#endif
#define umove(pid, addr, objp) \
umoven((pid), (addr), sizeof *(objp), (char *) (objp))
#ifdef __STDC__
#ifdef __GNUC__
extern void tprintf(const char *fmt, ...)
__attribute__ ((format (printf, 1, 2)));
#else
extern void tprintf(const char *fmt, ...);
#endif
#else
extern void tprintf();
#endif
#ifndef HAVE_STRERROR
const char *strerror P((int));
#endif
#ifndef HAVE_STRSIGNAL
const char *strsignal P((int));
#endif
extern int current_personality;
struct sysent {
int nargs;
int sys_flags;
int (*sys_func)();
char *sys_name;
};
extern struct sysent *sysent;
extern int nsyscalls;
extern char **errnoent;
extern int nerrnos;
struct ioctlent {
char *doth;
char *symbol;
unsigned long code;
};
extern struct ioctlent *ioctlent;
extern int nioctlent;
extern char **signalent;
extern int nsignals;
extern struct ioctlent *ioctlent;
extern int nioctlents;
extern char **signalent;
extern int nsignals;
extern struct ioctlent ioctlent0[];
extern int nioctlents0;
extern char *signalent0[];
extern int nsignals0;
#if SUPPORTED_PERSONALITIES >= 2
extern struct ioctlent ioctlent1[];
extern int nioctlents1;
extern char *signalent1[];
extern int nsignals1;
#endif /* SUPPORTED_PERSONALITIES >= 2 */
#if SUPPORTED_PERSONALITIES >= 3
extern struct ioctlent ioctlent2[];
extern int nioctlents2;
extern char *signalent2[];
extern int nsignals2;
#endif /* SUPPORTED_PERSONALITIES >= 3 */
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