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252b5132 RH |
1 | /* This is part of the shared library ld test. This file becomes part |
2 | of a shared library. */ | |
3 | ||
4 | /* This variable is supplied by the main program. */ | |
5 | #ifndef XCOFF_TEST | |
6 | extern int mainvar; | |
7 | #endif | |
8 | ||
9 | /* This variable is defined in the shared library, and overridden by | |
10 | the main program. */ | |
11 | #ifndef XCOFF_TEST | |
12 | int overriddenvar = -1; | |
13 | #endif | |
14 | ||
15 | /* This variable is defined in the shared library. */ | |
16 | int shlibvar1 = 3; | |
17 | ||
18 | /* This variable is defined by another object in the shared library. */ | |
19 | extern int shlibvar2; | |
20 | ||
21 | /* These functions return the values of the above variables as seen in | |
22 | the shared library. */ | |
23 | ||
24 | #ifndef XCOFF_TEST | |
25 | int | |
26 | shlib_mainvar () | |
27 | { | |
28 | return mainvar; | |
29 | } | |
30 | #endif | |
31 | ||
32 | #ifndef XCOFF_TEST | |
33 | int | |
34 | shlib_overriddenvar () | |
35 | { | |
36 | return overriddenvar; | |
37 | } | |
38 | #endif | |
39 | ||
40 | int | |
41 | shlib_shlibvar1 () | |
42 | { | |
43 | return shlibvar1; | |
44 | } | |
45 | ||
46 | int | |
47 | shlib_shlibvar2 () | |
48 | { | |
49 | return shlibvar2; | |
50 | } | |
51 | ||
52 | /* This function calls a function defined by another object in the | |
53 | shared library. */ | |
54 | ||
55 | extern int shlib_shlibcalled (); | |
56 | ||
57 | int | |
58 | shlib_shlibcall () | |
59 | { | |
60 | return shlib_shlibcalled (); | |
61 | } | |
62 | ||
63 | #ifndef XCOFF_TEST | |
64 | /* This function calls a function defined in this object in the shared | |
65 | library. The main program will override the called function. */ | |
66 | ||
2bdba6c9 | 67 | extern int shlib_overriddencall2 (); |
252b5132 RH |
68 | |
69 | int | |
70 | shlib_shlibcall2 () | |
71 | { | |
72 | return shlib_overriddencall2 (); | |
73 | } | |
74 | ||
75 | int | |
76 | shlib_overriddencall2 () | |
77 | { | |
78 | return 7; | |
79 | } | |
80 | #endif | |
81 | ||
82 | /* This function calls a function defined by the main program. */ | |
83 | ||
84 | #ifndef XCOFF_TEST | |
85 | extern int main_called (); | |
86 | ||
87 | int | |
88 | shlib_maincall () | |
89 | { | |
90 | return main_called (); | |
91 | } | |
92 | #endif | |
93 | ||
94 | /* This function is passed a function pointer to shlib_mainvar. It | |
95 | confirms that the pointer compares equally. */ | |
96 | ||
97 | int | |
98 | shlib_checkfunptr1 (p) | |
99 | int (*p) (); | |
100 | { | |
101 | return p == shlib_shlibvar1; | |
102 | } | |
103 | ||
104 | /* This function is passed a function pointer to main_called. It | |
105 | confirms that the pointer compares equally. */ | |
106 | ||
107 | #ifndef XCOFF_TEST | |
108 | int | |
109 | shlib_checkfunptr2 (p) | |
110 | int (*p) (); | |
111 | { | |
112 | return p == main_called; | |
113 | } | |
114 | #endif | |
115 | ||
116 | /* This function returns a pointer to shlib_mainvar. */ | |
117 | ||
118 | int | |
119 | (*shlib_getfunptr1 ()) () | |
120 | { | |
121 | return shlib_shlibvar1; | |
122 | } | |
123 | ||
124 | /* This function returns a pointer to main_called. */ | |
125 | ||
126 | #ifndef XCOFF_TEST | |
127 | int | |
128 | (*shlib_getfunptr2 ()) () | |
129 | { | |
130 | return main_called; | |
131 | } | |
132 | #endif | |
133 | ||
134 | /* This function makes sure that constant data and local functions | |
135 | work. */ | |
136 | ||
137 | #ifndef __STDC__ | |
138 | #define const | |
139 | #endif | |
140 | ||
141 | static int i = 6; | |
142 | static const char *str = "Hello, world\n"; | |
143 | ||
144 | int | |
145 | shlib_check () | |
146 | { | |
147 | const char *s1, *s2; | |
148 | ||
149 | if (i != 6) | |
150 | return 0; | |
151 | ||
152 | /* To isolate the test, don't rely on any external functions, such | |
153 | as strcmp. */ | |
154 | s1 = "Hello, world\n"; | |
155 | s2 = str; | |
156 | while (*s1 != '\0') | |
157 | if (*s1++ != *s2++) | |
158 | return 0; | |
159 | if (*s2 != '\0') | |
160 | return 0; | |
161 | ||
162 | if (shlib_shlibvar1 () != 3) | |
163 | return 0; | |
164 | ||
165 | return 1; | |
166 | } |