1 /* $NetBSD: t_kern.c,v 1.4 2017/01/13 21:30:43 christos Exp $ */
2
3 /*-
4 * Copyright (c) 2011 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
17 * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
18 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
23 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
25 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
26 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
27 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30 #include <sys/types.h>
31 #include <sys/signal.h>
32 #include <sys/wait.h>
33
34 #include <rump/rump.h>
35
36 #include <atf-c.h>
37 #include <stdio.h>
38 #include <stdlib.h>
39 #include <unistd.h>
40
41 #include "h_macros.h"
42 #include "../kernspace/kernspace.h"
43
44 #define LOCKFUN(_name_, _descr_,_needld_, _expect_) \
45 ATF_TC(lockme_##_name_); \
46 ATF_TC_HEAD(lockme_##_name_, tc) { \
47 atf_tc_set_md_var(tc, "descr", _descr_); \
48 } \
49 ATF_TC_BODY(lockme_##_name_, tc) { \
50 locktest(tc, LOCKME_##_name_, _needld_, _expect_); \
51 }
52
53 static void
locktest(const atf_tc_t * tc,enum locktest lt,int needld,const char * expect)54 locktest(const atf_tc_t *tc, enum locktest lt, int needld, const char *expect)
55 {
56 extern const int rump_lockdebug;
57 int pipetti[2];
58 int status;
59
60 if (needld && !rump_lockdebug)
61 atf_tc_skip("test requires LOCKDEBUG kernel");
62 RL(pipe(pipetti));
63
64 switch (fork()) {
65 case 0:
66 RL(dup2(pipetti[1], STDOUT_FILENO));
67 RL(dup2(pipetti[1], STDOUT_FILENO));
68 rump_init();
69 rump_schedule();
70 rumptest_lockme(lt);
71 rump_unschedule();
72 break;
73 default:
74 RL(wait(&status));
75 ATF_REQUIRE(WIFSIGNALED(status) && WTERMSIG(status) == SIGABRT);
76 if (rump_lockdebug) {
77 char buf[8192];
78
79 ATF_REQUIRE(read(pipetti[0], buf, sizeof(buf)) > 0);
80 if (strncmp(buf, expect, strlen(expect)) != 0)
81 atf_tc_fail("unexpected output");
82 }
83 break;
84 case -1:
85 atf_tc_fail("fork");
86 }
87 }
88
89 LOCKFUN(DESTROYHELD, "destroy lock while held", 0,
90 "mutex error: lockdebug_free: is locked or in use");
91 LOCKFUN(DOUBLEFREE, "free lock twice", 0,
92 "panic: lockdebug_lookup: uninitialized lock");
93 LOCKFUN(DOUBLEINIT, "init lock twice", 1,
94 "mutex error: lockdebug_alloc: already initialized");
95 LOCKFUN(MEMFREE, "free memory active lock is in", 1,
96 "mutex error: kmem_intr_free: allocation contains active lock");
97 LOCKFUN(MTX, "locking-against-self mutex", 0,
98 "mutex error: lockdebug_wantlock: locking against myself");
99 LOCKFUN(RWDOUBLEX, "locking-against-self exclusive rwlock", 0,
100 "rwlock error: lockdebug_wantlock: locking against myself");
101 LOCKFUN(RWRX, "rw: first shared, then exclusive", 1,
102 "rwlock error: lockdebug_wantlock: locking against myself");
103 LOCKFUN(RWXR, "rw: first execusive, then shared", 0,
104 "rwlock error: lockdebug_wantlock: locking against myself");
105
ATF_TP_ADD_TCS(tp)106 ATF_TP_ADD_TCS(tp)
107 {
108
109 ATF_TP_ADD_TC(tp, lockme_MTX);
110 ATF_TP_ADD_TC(tp, lockme_RWDOUBLEX);
111 ATF_TP_ADD_TC(tp, lockme_RWRX);
112 ATF_TP_ADD_TC(tp, lockme_RWXR);
113 ATF_TP_ADD_TC(tp, lockme_DOUBLEINIT);
114 ATF_TP_ADD_TC(tp, lockme_DOUBLEFREE);
115 ATF_TP_ADD_TC(tp, lockme_DESTROYHELD);
116 ATF_TP_ADD_TC(tp, lockme_MEMFREE);
117
118 return atf_no_error();
119 }
120