1 /* $NetBSD: t_kern.c,v 1.3 2012/01/30 13:05:52 njoly 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 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"); 105 106 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