usr/src/cmd/truss/ramdata.c

   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 (c) 1989, 2010, Oracle and/or its affiliates. All rights reserved.
  24  */
  25
  26 /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
  27 /*        All Rights Reserved   */
  28
  29 #include <stdio.h>
  30 #include <stdlib.h>
  31 #include <unistd.h>
  32 #include <sys/types.h>
  33 #include <libproc.h>
  34 #include "ramdata.h"
  35 #include "proto.h"
  36 #include "htbl.h"
  37
  38 /*
  39  * ramdata.c -- read/write data definitions are collected here.
  40  * Default initialization of zero applies in all cases.
  41  */
  42
  43 thread_key_t private_key;       /* set by thr_keycreate() */
  44 char    *command;               /* name of command ("truss") */
  45 int     interrupt;              /* interrupt signal was received */
  46 int     sigusr1;                /* received SIGUSR1 (release process) */
  47 int     sfd;                    /* shared tmp file descriptor */
  48 pid_t   created;                /* if process was created, its process id */
  49 uid_t   Euid;                   /* truss's effective uid */
  50 uid_t   Egid;                   /* truss's effective gid */
  51 uid_t   Ruid;                   /* truss's real uid */
  52 uid_t   Rgid;                   /* truss's real gid */
  53 prcred_t credentials;           /* traced process credentials */
  54 prpriv_t *privdata;             /* traced process privileges */
  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 */