1#!/bin/ksh -p
2#
3# CDDL HEADER START
4#
5# The contents of this file are subject to the terms of the
6# Common Development and Distribution License (the "License").
7# You may not use this file except in compliance with the License.
8#
9# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10# or http://www.opensolaris.org/os/licensing.
11# See the License for the specific language governing permissions
12# and limitations under the License.
13#
14# When distributing Covered Code, include this CDDL HEADER in each
15# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16# If applicable, add the following below this CDDL HEADER, with the
17# fields enclosed by brackets "[]" replaced with your own identifying
18# information: Portions Copyright [yyyy] [name of copyright owner]
19#
20# CDDL HEADER END
21#
22
23#
24# Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
25# Use is subject to license terms.
26#
27
28#
29# This test verifies that performing a dlclose(3dl) on a library doesn't
30# cause existing pid provider probes to become invalid.
31#
32
33if [ $# != 1 ]; then
34	echo expected one argument: '<'dtrace-path'>'
35	exit 2
36fi
37
38dtrace=$1
39DIR=/var/tmp/dtest.$$
40
41mkdir $DIR
42cd $DIR
43
44cat > Makefile <<EOF
45all: main livelib.so deadlib.so
46
47main: main.o prov.o
48	gcc -m32 -o main main.o
49
50main.o: main.c
51	gcc -m32 -c main.c
52
53
54livelib.so: livelib.o prov.o
55	gcc -m32 -shared -o livelib.so livelib.o prov.o -lc
56
57livelib.o: livelib.c prov.h
58	gcc -m32 -fPIC -c livelib.c
59
60prov.o: livelib.o prov.d
61	$dtrace -G -s prov.d livelib.o
62
63prov.h: prov.d
64	$dtrace -h -s prov.d
65
66
67deadlib.so: deadlib.o
68	gcc -m32 -shared -o deadlib.so deadlib.o -lc
69
70deadlib.o: deadlib.c
71	gcc -m32 -fPIC -c deadlib.c
72
73clean:
74	rm -f main.o livelib.o prov.o prov.h deadlib.o
75
76clobber: clean
77	rm -f main livelib.so deadlib.so
78EOF
79
80cat > prov.d <<EOF
81provider test_prov {
82	probe go();
83};
84EOF
85
86cat > livelib.c <<EOF
87#include "prov.h"
88
89void
90go(void)
91{
92	TEST_PROV_GO();
93}
94EOF
95
96cat > deadlib.c <<EOF
97void
98go(void)
99{
100}
101EOF
102
103
104cat > main.c <<EOF
105#include <dlfcn.h>
106#include <unistd.h>
107#include <stdio.h>
108
109static void
110foo(void)
111{
112	(void) close(-1);
113}
114
115int
116main(int argc, char **argv)
117{
118	void *live;
119
120	if ((live = dlopen("./livelib.so", RTLD_LAZY | RTLD_LOCAL)) == NULL) {
121		printf("dlopen of livelib.so failed: %s\n", dlerror());
122		return (1);
123	}
124
125	(void) dlclose(live);
126
127	foo();
128
129	return (0);
130}
131EOF
132
133make > /dev/null
134if [ $? -ne 0 ]; then
135	print -u2 "failed to build"
136	exit 1
137fi
138
139script() {
140	$dtrace -c ./main -s /dev/stdin <<EOF
141	pid\$target:a.out:foo:entry
142	{
143		gotit = 1;
144		exit(0);
145	}
146
147	tick-1s
148	/i++ == 5/
149	{
150		printf("test timed out");
151		exit(1);
152	}
153
154	END
155	/!gotit/
156	{
157		printf("program ended without hitting probe");
158		exit(1);
159	}
160EOF
161}
162
163script
164status=$?
165
166cd /
167/usr/bin/rm -rf $DIR
168
169exit $status
170