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      1 /*
      2  * CDDL HEADER START
      3  *
      4  * The contents of this file are subject to the terms of the
      5  * Common Development and Distribution License (the "License").
      6  * You may not use this file except in compliance with the License.
      7  *
      8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
      9  * or http://www.opensolaris.org/os/licensing.
     10  * See the License for the specific language governing permissions
     11  * and limitations under the License.
     12  *
     13  * When distributing Covered Code, include this CDDL HEADER in each
     14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     15  * If applicable, add the following below this CDDL HEADER, with the
     16  * fields enclosed by brackets "[]" replaced with your own identifying
     17  * information: Portions Copyright [yyyy] [name of copyright owner]
     18  *
     19  * CDDL HEADER END
     20  */
     21 
     22 /*
     23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
     24  * Use is subject to license terms.
     25  */
     26 
     27 /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
     28 /*	  All Rights Reserved  	*/
     29 
     30 #include <stdio.h>
     31 #include <stdlib.h>
     32 #include <unistd.h>
     33 #include <sys/types.h>
     34 #include <libproc.h>
     35 #include "ramdata.h"
     36 #include "proto.h"
     37 #include "htbl.h"
     38 
     39 /*
     40  * ramdata.c -- read/write data definitions are collected here.
     41  * Default initialization of zero applies in all cases.
     42  */
     43 
     44 thread_key_t private_key;	/* set by thr_keycreate() */
     45 char	*command;		/* name of command ("truss") */
     46 int	interrupt;		/* interrupt signal was received */
     47 int	sigusr1;		/* received SIGUSR1 (release process) */
     48 int	sfd;			/* shared tmp file descriptor */
     49 pid_t	created;		/* if process was created, its process id */
     50 uid_t	Euid;			/* truss's effective uid */
     51 uid_t	Egid;			/* truss's effective gid */
     52 uid_t	Ruid;			/* truss's real uid */
     53 uid_t	Rgid;			/* truss's real gid */
     54 prcred_t credentials;		/* traced process credentials */
     55 int	istty;			/* TRUE iff output is a tty */
     56 time_t	starttime;		/* start time */
     57 
     58 int	Fflag;			/* option flags from getopt() */
     59 int	fflag;
     60 int	cflag;
     61 int	aflag;
     62 int	eflag;
     63 int	iflag;
     64 int	lflag;
     65 int	tflag;
     66 int	pflag;
     67 int	sflag;
     68 int	mflag;
     69 int	oflag;
     70 int	vflag;
     71 int	xflag;
     72 int	hflag;
     73 
     74 int	dflag;
     75 int	Dflag;
     76 int	Eflag;
     77 int	Tflag;
     78 int	Sflag;
     79 int	Mflag;
     80 
     81 sysset_t trace;			/* sys calls to trace */
     82 sysset_t traceeven;		/* sys calls to trace even if not reported */
     83 sysset_t verbose;		/* sys calls to be verbose about */
     84 sysset_t rawout;		/* sys calls to show in raw mode */
     85 sigset_t signals;		/* signals to trace */
     86 fltset_t faults;		/* faults to trace */
     87 fileset_t readfd;		/* read() file descriptors to dump */
     88 fileset_t writefd;		/* write() file descriptors to dump */
     89 
     90 mutex_t	truss_lock;		/* protects almost everything */
     91 cond_t	truss_cv;
     92 mutex_t count_lock;		/* lock protecting count struct Cp */
     93 
     94 htbl_t	*fcall_tbl;		/* ptr to hash tbl counting function calls */
     95 
     96 int	truss_nlwp;		/* number of truss lwps */
     97 int	truss_maxlwp;		/* number of entries in truss_lwpid */
     98 lwpid_t	*truss_lwpid;		/* array of truss lwpid's */
     99 
    100 struct counts *Cp;		/* for counting: malloc() or shared memory */
    101 struct global_psinfo *gps;	/* contains global process information */
    102 
    103 struct dynlib *Dynlib;		/* for tracing functions in shared libraries */
    104 struct dynpat *Dynpat;
    105 struct dynpat *Lastpat;
    106 struct bkpt **bpt_hashtable;	/* breakpoint hash table */
    107 uint_t	nthr_create;		/* number of thr_create() calls seen so far */
    108 struct callstack *callstack;	/* the callstack array */
    109 uint_t	nstack;			/* number of detected stacks */
    110 rd_agent_t *Rdb_agent;		/* run-time linker debug handle */
    111 td_thragent_t *Thr_agent;	/* thread debug handle */
    112 int	not_consist;		/* used while rebuilding breakpoint table */
    113 int	delete_library;		/* used while rebuilding breakpoint table */
    114 
    115 pid_t	ancestor;		/* top-level parent process id */
    116 int	descendent;		/* TRUE iff descendent of top level */
    117 int	is_vfork_child;		/* TRUE iff process is a vfork()ed child */
    118 
    119 int	ngrab;			/* number of pid's that were grabbed */
    120 
    121 struct ps_prochandle *Proc;	/* global reference to process */
    122 int	data_model;		/* PR_MODEL_LP64 or PR_MODEL_ILP32 */
    123 
    124 long	pagesize;		/* bytes per page; should be per-process */
    125 
    126 int	exit_called;		/* _exit() syscall was seen */
    127 
    128 lwpid_t	primary_lwp;		/* representative lwp on process grab */
    129 
    130 sysset_t syshang;		/* sys calls to make process hang */
    131 sigset_t sighang;		/* signals to make process hang */
    132 fltset_t flthang;		/* faults to make process hang */
    133 
    134 sigset_t emptyset;		/* no signals, for thr_sigsetmask() */
    135 sigset_t fillset;		/* all signals, for thr_sigsetmask() */
    136 
    137 int	leave_hung;		/* if TRUE, leave the process hung */
    138