xref: /illumos-gate/usr/src/cmd/truss/ramdata.c (revision 7ae111d47a973fff4c6e231cc31f271dd9cef473)
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 2006 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 #pragma ident	"%Z%%M%	%I%	%E% SMI"	/* SVr4.0 1.3	*/
31 
32 #include <stdio.h>
33 #include <stdlib.h>
34 #include <unistd.h>
35 #include <sys/types.h>
36 #include <libproc.h>
37 #include "ramdata.h"
38 #include "proto.h"
39 #include "htbl.h"
40 
41 /*
42  * ramdata.c -- read/write data definitions are collected here.
43  * Default initialization of zero applies in all cases.
44  */
45 
46 thread_key_t private_key;	/* set by thr_keycreate() */
47 char	*command;		/* name of command ("truss") */
48 int	interrupt;		/* interrupt signal was received */
49 int	sigusr1;		/* received SIGUSR1 (release process) */
50 int	sfd;			/* shared tmp file descriptor */
51 pid_t	created;		/* if process was created, its process id */
52 uid_t	Euid;			/* truss's effective uid */
53 uid_t	Egid;			/* truss's effective gid */
54 uid_t	Ruid;			/* truss's real uid */
55 uid_t	Rgid;			/* truss's real gid */
56 prcred_t credentials;		/* traced process credentials */
57 int	istty;			/* TRUE iff output is a tty */
58 time_t	starttime;		/* start time */
59 
60 int	Fflag;			/* option flags from getopt() */
61 int	fflag;
62 int	cflag;
63 int	aflag;
64 int	eflag;
65 int	iflag;
66 int	lflag;
67 int	tflag;
68 int	pflag;
69 int	sflag;
70 int	mflag;
71 int	oflag;
72 int	vflag;
73 int	xflag;
74 int	hflag;
75 
76 int	dflag;
77 int	Dflag;
78 int	Eflag;
79 int	Tflag;
80 int	Sflag;
81 int	Mflag;
82 
83 sysset_t trace;			/* sys calls to trace */
84 sysset_t traceeven;		/* sys calls to trace even if not reported */
85 sysset_t verbose;		/* sys calls to be verbose about */
86 sysset_t rawout;		/* sys calls to show in raw mode */
87 sigset_t signals;		/* signals to trace */
88 fltset_t faults;		/* faults to trace */
89 fileset_t readfd;		/* read() file descriptors to dump */
90 fileset_t writefd;		/* write() file descriptors to dump */
91 
92 mutex_t	truss_lock;		/* protects almost everything */
93 cond_t	truss_cv;
94 mutex_t count_lock;		/* lock protecting count struct Cp */
95 
96 htbl_t	*fcall_tbl;		/* ptr to hash tbl counting function calls */
97 
98 int	truss_nlwp;		/* number of truss lwps */
99 int	truss_maxlwp;		/* number of entries in truss_lwpid */
100 lwpid_t	*truss_lwpid;		/* array of truss lwpid's */
101 
102 struct counts *Cp;		/* for counting: malloc() or shared memory */
103 struct global_psinfo *gps;	/* contains global process information */
104 
105 struct dynlib *Dyn;		/* for tracing functions in shared libraries */
106 struct dynpat *Dynpat;
107 struct dynpat *Lastpat;
108 struct bkpt **bpt_hashtable;	/* breakpoint hash table */
109 uint_t	nthr_create;		/* number of thr_create() calls seen so far */
110 struct callstack *callstack;	/* the callstack array */
111 uint_t	nstack;			/* number of detected stacks */
112 rd_agent_t *Rdb_agent;		/* run-time linker debug handle */
113 td_thragent_t *Thr_agent;	/* thread debug handle */
114 int	not_consist;		/* used while rebuilding breakpoint table */
115 int	delete_library;		/* used while rebuilding breakpoint table */
116 
117 pid_t	ancestor;		/* top-level parent process id */
118 int	descendent;		/* TRUE iff descendent of top level */
119 int	is_vfork_child;		/* TRUE iff process is a vfork()ed child */
120 
121 int	ngrab;			/* number of pid's that were grabbed */
122 
123 struct ps_prochandle *Proc;	/* global reference to process */
124 int	data_model;		/* PR_MODEL_LP64 or PR_MODEL_ILP32 */
125 
126 long	pagesize;		/* bytes per page; should be per-process */
127 
128 int	exit_called;		/* _exit() syscall was seen */
129 
130 lwpid_t	primary_lwp;		/* representative lwp on process grab */
131 
132 sysset_t syshang;		/* sys calls to make process hang */
133 sigset_t sighang;		/* signals to make process hang */
134 fltset_t flthang;		/* faults to make process hang */
135 
136 sigset_t emptyset;		/* no signals, for thr_sigsetmask() */
137 sigset_t fillset;		/* all signals, for thr_sigsetmask() */
138 
139 int	leave_hung;		/* if TRUE, leave the process hung */
140