1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2018 Andrew Turner
5 *
6 * This software was developed by SRI International and the University of
7 * Cambridge Computer Laboratory under DARPA/AFRL contract FA8750-10-C-0237
8 * ("CTSRD"), as part of the DARPA CRASH research programme.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 #ifndef DSO_LIB
34 #include <atf-c.h>
35 #endif
36
37 #include <crt.h>
38
39 typedef void (*func_ptr)(void);
40
41 extern volatile int jcr_run;
42 extern const func_ptr *jcr_ptr;
43 extern const void *jcr_func_ptr;
44 extern volatile int ctors_run;
45 extern volatile int preinit_array_run;
46 extern volatile int preinit_array_state;
47 extern volatile int init_array_run;
48 extern volatile int init_array_state;
49
50 #ifndef DSO_BASE
51 volatile int jcr_run;
52 const func_ptr *jcr_ptr;
53 volatile int ctors_run;
54 volatile int preinit_array_run;
55 volatile int preinit_array_state = -1;
56 volatile int init_array_run;
57 volatile int init_array_state = -1;
58
59 void _Jv_RegisterClasses(const func_ptr *);
60
61 __section(".jcr") __used static func_ptr jcr_func = (func_ptr)1;
62 const void *jcr_func_ptr = &jcr_func;
63
64 void
_Jv_RegisterClasses(const func_ptr * jcr)65 _Jv_RegisterClasses(const func_ptr *jcr)
66 {
67
68 jcr_run = 1;
69 jcr_ptr = jcr;
70 }
71 #endif
72
73 #ifndef DSO_LIB
74 ATF_TC_WITHOUT_HEAD(jcr_test);
ATF_TC_BODY(jcr_test,tc)75 ATF_TC_BODY(jcr_test, tc)
76 {
77
78 ATF_REQUIRE_MSG(jcr_run == 1, ".jcr not run");
79 ATF_REQUIRE_MSG(jcr_ptr == jcr_func_ptr,
80 "Incorrect pointer passed to _Jv_RegisterClasses");
81 }
82 #endif
83
84 #ifndef DSO_BASE
85 static void
ctors_handler(void)86 ctors_handler(void)
87 {
88
89 ctors_run = 1;
90 }
91 __section(".ctors") __used static func_ptr ctors_func =
92 &ctors_handler;
93 #endif
94
95 #ifndef DSO_LIB
96 ATF_TC_WITHOUT_HEAD(ctors_test);
ATF_TC_BODY(ctors_test,tc)97 ATF_TC_BODY(ctors_test, tc)
98 {
99
100 #ifdef HAVE_CTORS
101 ATF_REQUIRE_MSG(ctors_run == 1, ".ctors not run");
102 #else
103 ATF_REQUIRE_MSG(ctors_run == 0, ".ctors run");
104 #endif
105 }
106 #endif
107
108 #if !defined(DSO_BASE) && !defined(DSO_LIB)
109 static void
preinit_array_handler(void)110 preinit_array_handler(void)
111 {
112
113 preinit_array_run = 1;
114 preinit_array_state = init_array_run;
115 }
116 __section(".preinit_array") __used static func_ptr preinit_array_func =
117 &preinit_array_handler;
118 #endif
119
120 #ifndef DSO_LIB
121 ATF_TC_WITHOUT_HEAD(preinit_array_test);
ATF_TC_BODY(preinit_array_test,tc)122 ATF_TC_BODY(preinit_array_test, tc)
123 {
124
125 #ifdef DSO_BASE
126 /* Check .preinit_array wasn't run in a DSO */
127 ATF_REQUIRE_MSG(preinit_array_run == 0, ".preinit_array run in DSO");
128 #else
129 ATF_REQUIRE_MSG(preinit_array_run == 1, ".preinit_array not run");
130 ATF_REQUIRE_MSG(preinit_array_state == 0,
131 ".preinit_array was not run before .init_array");
132 #endif
133 }
134 #endif
135
136 #ifndef DSO_BASE
137 static void
init_array_handler(void)138 init_array_handler(void)
139 {
140
141 init_array_run = 1;
142 init_array_state = preinit_array_run;
143 }
144 __section(".init_array") __used static func_ptr init_array_func =
145 &init_array_handler;
146 #endif
147
148 #ifndef DSO_LIB
149 ATF_TC_WITHOUT_HEAD(init_array_test);
ATF_TC_BODY(init_array_test,tc)150 ATF_TC_BODY(init_array_test, tc)
151 {
152
153 ATF_REQUIRE_MSG(init_array_run == 1, ".init_array not run");
154 #ifndef DSO_BASE
155 ATF_REQUIRE_MSG(init_array_state == 1,
156 ".init_array was not run after .preinit_array");
157 #endif
158 }
159
ATF_TP_ADD_TCS(tp)160 ATF_TP_ADD_TCS(tp)
161 {
162
163 ATF_TP_ADD_TC(tp, jcr_test);
164 ATF_TP_ADD_TC(tp, ctors_test);
165 ATF_TP_ADD_TC(tp, preinit_array_test);
166 ATF_TP_ADD_TC(tp, init_array_test);
167
168 return (atf_no_error());
169 }
170 #endif
171