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1 | /* Test the protected visibility when main is linked with modb and moda | |
2 | in that order: | |
3 | 1. Protected symbols, protected1, protected2 and protected3, defined | |
4 | in moda, are used in moda. | |
5 | 2. Protected symbol, protected3, defined in modb, are used in modb | |
6 | 3. Symbol, protected1, defined in modb, is used in main and modb. | |
7 | 4. Symbol, protected2, defined in main, is used in main. | |
8 | 5. Symbol, protected3, defined in modb, is also used in main. | |
9 | ||
10 | Copyright (C) 2015-2019 Free Software Foundation, Inc. | |
11 | This file is part of the GNU C Library. | |
12 | ||
13 | The GNU C Library is free software; you can redistribute it and/or | |
14 | modify it under the terms of the GNU Lesser General Public | |
15 | License as published by the Free Software Foundation; either | |
16 | version 2.1 of the License, or (at your option) any later version. | |
17 | ||
18 | The GNU C Library is distributed in the hope that it will be useful, | |
19 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
21 | Lesser General Public License for more details. | |
22 | ||
23 | You should have received a copy of the GNU Lesser General Public | |
24 | License along with the GNU C Library; if not, see | |
25 | <http://www.gnu.org/licenses/>. */ | |
26 | ||
27 | /* This file must be compiled as PIE to avoid copy relocation when | |
28 | accessing protected symbols defined in shared libaries since copy | |
29 | relocation doesn't work with protected symbols and linker in | |
30 | binutils 2.26 enforces this rule. */ | |
31 | ||
32 | #include <stdio.h> | |
33 | #include <stdlib.h> | |
34 | #include <string.h> | |
35 | ||
36 | #include "tst-protected1mod.h" | |
37 | ||
38 | /* Prototype for our test function. */ | |
39 | extern int do_test (void); | |
40 | ||
41 | int protected2 = -1; | |
42 | ||
43 | /* This defines the `main' function and some more. */ | |
44 | #include <support/test-driver.c> | |
45 | ||
46 | int | |
47 | do_test (void) | |
48 | { | |
49 | int res = 0; | |
50 | ||
51 | /* Check if we get the same address for the protected data symbol. */ | |
52 | if (&protected1 == protected1a_p ()) | |
53 | { | |
54 | puts ("`protected1' in main and moda has same address"); | |
55 | res = 1; | |
56 | } | |
57 | if (&protected1 != protected1b_p ()) | |
58 | { | |
59 | puts ("`protected1' in main and modb doesn't have same address"); | |
60 | res = 1; | |
61 | } | |
62 | ||
63 | /* Check if we get the right value for the protected data symbol. */ | |
64 | if (protected1 != -3) | |
65 | { | |
66 | puts ("`protected1' in main and modb doesn't have same value"); | |
67 | res = 1; | |
68 | } | |
69 | ||
70 | /* Check if we get the right value for data defined in executable. */ | |
71 | if (protected2 != -1) | |
72 | { | |
73 | puts ("`protected2' in main has the wrong value"); | |
74 | res = 1; | |
75 | } | |
76 | ||
77 | /* Check `protected1' in moda. */ | |
78 | if (!check_protected1 ()) | |
79 | { | |
80 | puts ("`protected1' in moda has the wrong value"); | |
81 | res = 1; | |
82 | } | |
83 | ||
84 | /* Check `protected2' in moda. */ | |
85 | if (!check_protected2 ()) | |
86 | { | |
87 | puts ("`protected2' in moda has the wrong value"); | |
88 | res = 1; | |
89 | } | |
90 | ||
91 | /* Check if we get the same address for the protected data symbol. */ | |
92 | if (&protected3 == protected3a_p ()) | |
93 | { | |
94 | puts ("`protected3' in main and moda has same address"); | |
95 | res = 1; | |
96 | } | |
97 | if (&protected3 != protected3b_p ()) | |
98 | { | |
99 | puts ("`protected3' in main and modb doesn't have same address"); | |
100 | res = 1; | |
101 | } | |
102 | ||
103 | /* Check if we get the right value for the protected data symbol. */ | |
104 | if (protected3 != -5) | |
105 | { | |
106 | puts ("`protected3' in main and modb doesn't have same value"); | |
107 | res = 1; | |
108 | } | |
109 | ||
110 | /* Check `protected3' in moda. */ | |
111 | if (!check_protected3a ()) | |
112 | { | |
113 | puts ("`protected3' in moda has the wrong value"); | |
114 | res = 1; | |
115 | } | |
116 | ||
117 | /* Check `protected3' in modb. */ | |
118 | if (!check_protected3b ()) | |
119 | { | |
120 | puts ("`protected3' in modb has the wrong value"); | |
121 | res = 1; | |
122 | } | |
123 | ||
124 | /* Set `protected2' in moda to 30. */ | |
125 | set_protected2 (300); | |
126 | ||
127 | /* Check `protected2' in moda. */ | |
128 | if (!check_protected2 ()) | |
129 | { | |
130 | puts ("`protected2' in moda has the wrong value"); | |
131 | res = 1; | |
132 | } | |
133 | ||
134 | /* Check if we get the right value for data defined in executable. */ | |
135 | if (protected2 != -1) | |
136 | { | |
137 | puts ("`protected2' in main has the wrong value"); | |
138 | res = 1; | |
139 | } | |
140 | ||
141 | /* Set `protected1' in moda to 30. */ | |
142 | set_protected1a (30); | |
143 | ||
144 | /* Check `protected1' in moda. */ | |
145 | if (!check_protected1 ()) | |
146 | { | |
147 | puts ("`protected1' in moda has the wrong value"); | |
148 | res = 1; | |
149 | } | |
150 | ||
151 | /* Check if we get the same value for the protected data symbol. */ | |
152 | if (protected1 != -3) | |
153 | { | |
154 | puts ("`protected1' in main has the wrong value"); | |
155 | res = 1; | |
156 | } | |
157 | ||
158 | protected2 = -300; | |
159 | ||
160 | /* Check `protected2' in moda. */ | |
161 | if (!check_protected2 ()) | |
162 | { | |
163 | puts ("`protected2' in moda has the wrong value"); | |
164 | res = 1; | |
165 | } | |
166 | ||
167 | /* Check if data defined in executable is changed. */ | |
168 | if (protected2 != -300) | |
169 | { | |
170 | puts ("`protected2' in main is changed"); | |
171 | res = 1; | |
172 | } | |
173 | ||
174 | /* Set `protected1' in modb to 40. */ | |
175 | set_protected1b (40); | |
176 | ||
177 | /* Check `protected1' in moda. */ | |
178 | if (!check_protected1 ()) | |
179 | { | |
180 | puts ("`protected1' in moda has the wrong value"); | |
181 | res = 1; | |
182 | } | |
183 | ||
184 | /* Check if we get the updated value for the protected data symbol. */ | |
185 | if (protected1 != 40) | |
186 | { | |
187 | puts ("`protected1' in main doesn't have the updated value"); | |
188 | res = 1; | |
189 | } | |
190 | ||
191 | /* Set `protected3' in moda to 80. */ | |
192 | set_protected3a (80); | |
193 | ||
194 | /* Check `protected3' in moda. */ | |
195 | if (!check_protected3a ()) | |
196 | { | |
197 | puts ("`protected3' in moda has the wrong value"); | |
198 | res = 1; | |
199 | } | |
200 | ||
201 | /* Check if we get the updated value for the protected data symbol. */ | |
202 | if (protected3 != -5) | |
203 | { | |
204 | puts ("`protected3' in main doesn't have the updated value"); | |
205 | res = 1; | |
206 | } | |
207 | ||
208 | /* Check `protected3' in modb. */ | |
209 | if (!check_protected3b ()) | |
210 | { | |
211 | puts ("`protected3' in modb has the wrong value"); | |
212 | res = 1; | |
213 | } | |
214 | ||
215 | /* Set `protected3' in modb to 100. */ | |
216 | set_protected3b (100); | |
217 | ||
218 | /* Check `protected3' in moda. */ | |
219 | if (!check_protected3a ()) | |
220 | { | |
221 | puts ("`protected3' in moda has the wrong value"); | |
222 | res = 1; | |
223 | } | |
224 | ||
225 | /* Check if we get the updated value for the protected data symbol. */ | |
226 | if (protected3 != 100) | |
227 | { | |
228 | puts ("`protected3' in main doesn't have the updated value"); | |
229 | res = 1; | |
230 | } | |
231 | ||
232 | /* Check `protected3' in modb. */ | |
233 | if (!check_protected3b ()) | |
234 | { | |
235 | puts ("`protected3' in modb has the wrong value"); | |
236 | res = 1; | |
237 | } | |
238 | ||
239 | return res; | |
240 | } |