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[/] [open8_urisc/] [trunk/] [gnu/] [binutils/] [gold/] [testsuite/] [ifuncmain3.c] - Blame information for rev 158

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/* Test STT_GNU_IFUNC symbols with dlopen:
 
   1. Direct function call.
   2. Function pointer.
   3. Visibility with override.
 */
 
#include <dlfcn.h>
#include <stdlib.h>
#include <stdio.h>
 
extern int __attribute__ ((noinline)) foo (void);
extern int __attribute__ ((noinline)) foo_hidden (void);
extern int __attribute__ ((noinline)) foo_protected (void);
 
typedef int (*foo_p) (void);
 
int
__attribute__ ((noinline))
foo (void)
{
  return -30;
}
 
int
__attribute__ ((noinline))
foo_hidden (void)
{
  return -20;
}
 
int
__attribute__ ((noinline))
foo_protected (void)
{
  return -40;
}
 
int
main (void)
{
  foo_p p;
  foo_p (*f) (void);
  int *ret;
 
  void *h = dlopen ("ifuncmod3.so", RTLD_LAZY);
  if (h == NULL)
    {
      printf ("cannot load: %s\n", dlerror ());
      return 1;
    }
 
  p = dlsym (h, "foo");
  if (p == NULL)
    {
      printf ("symbol not found: %s\n", dlerror ());
      return 1;
    }
  if ((*p) () != -1)
    abort ();
 
  f = dlsym (h, "get_foo_p");
  if (f == NULL)
    {
      printf ("symbol not found: %s\n", dlerror ());
      return 1;
    }
 
  ret = dlsym (h, "ret_foo");
  if (ret == NULL)
    {
      printf ("symbol not found: %s\n", dlerror ());
      return 1;
    }
 
  p = (*f) ();
  if (p != foo)
    abort ();
  if (foo () != -30)
    abort ();
  if (*ret != -30 || (*p) () != *ret)
    abort ();
 
  f = dlsym (h, "get_foo_hidden_p");
  if (f == NULL)
    {
      printf ("symbol not found: %s\n", dlerror ());
      return 1;
    }
 
  ret = dlsym (h, "ret_foo_hidden");
  if (ret == NULL)
    {
      printf ("symbol not found: %s\n", dlerror ());
      return 1;
    }
 
  p = (*f) ();
  if (foo_hidden () != -20)
    abort ();
  if (*ret != 1 || (*p) () != *ret)
    abort ();
 
  f = dlsym (h, "get_foo_protected_p");
  if (f == NULL)
    {
      printf ("symbol not found: %s\n", dlerror ());
      return 1;
    }
 
  ret = dlsym (h, "ret_foo_protected");
  if (ret == NULL)
    {
      printf ("symbol not found: %s\n", dlerror ());
      return 1;
    }
 
  p = (*f) ();
  if (p == foo_protected)
    abort ();
  if (foo_protected () != -40)
    abort ();
  if (*ret != 0 || (*p) () != *ret)
    abort ();
 
  if (dlclose (h) != 0)
    {
      printf ("cannot close: %s\n", dlerror ());
      return 1;
    }
 
  return 0;
}

Line No.	Rev	Author	Line
1	27	khays	`/* Test STT_GNU_IFUNC symbols with dlopen:`
2
3			`1. Direct function call.`
4			`2. Function pointer.`
5			`3. Visibility with override.`
6			`*/`
7
8			`#include <dlfcn.h>`
9			`#include <stdlib.h>`
10			`#include <stdio.h>`
11
12			`extern int __attribute__ ((noinline)) foo (void);`
13			`extern int __attribute__ ((noinline)) foo_hidden (void);`
14			`extern int __attribute__ ((noinline)) foo_protected (void);`
15
16			`typedef int (*foo_p) (void);`
17
18			`int`
19			`__attribute__ ((noinline))`
20			`foo (void)`
21			`{`
22			`return -30;`
23			`}`
24
25			`int`
26			`__attribute__ ((noinline))`
27			`foo_hidden (void)`
28			`{`
29			`return -20;`
30			`}`
31
32			`int`
33			`__attribute__ ((noinline))`
34			`foo_protected (void)`
35			`{`
36			`return -40;`
37			`}`
38
39			`int`
40			`main (void)`
41			`{`
42			`foo_p p;`
43			`foo_p (*f) (void);`
44			`int *ret;`
45
46			`void *h = dlopen ("ifuncmod3.so", RTLD_LAZY);`
47			`if (h == NULL)`
48			`{`
49			`printf ("cannot load: %s\n", dlerror ());`
50			`return 1;`
51			`}`
52
53			`p = dlsym (h, "foo");`
54			`if (p == NULL)`
55			`{`
56			`printf ("symbol not found: %s\n", dlerror ());`
57			`return 1;`
58			`}`
59			`if ((*p) () != -1)`
60			`abort ();`
61
62			`f = dlsym (h, "get_foo_p");`
63			`if (f == NULL)`
64			`{`
65			`printf ("symbol not found: %s\n", dlerror ());`
66			`return 1;`
67			`}`
68
69			`ret = dlsym (h, "ret_foo");`
70			`if (ret == NULL)`
71			`{`
72			`printf ("symbol not found: %s\n", dlerror ());`
73			`return 1;`
74			`}`
75
76			`p = (*f) ();`
77			`if (p != foo)`
78			`abort ();`
79			`if (foo () != -30)`
80			`abort ();`
81			`if (ret != -30 \|\| (p) () != *ret)`
82			`abort ();`
83
84			`f = dlsym (h, "get_foo_hidden_p");`
85			`if (f == NULL)`
86			`{`
87			`printf ("symbol not found: %s\n", dlerror ());`
88			`return 1;`
89			`}`
90
91			`ret = dlsym (h, "ret_foo_hidden");`
92			`if (ret == NULL)`
93			`{`
94			`printf ("symbol not found: %s\n", dlerror ());`
95			`return 1;`
96			`}`
97
98			`p = (*f) ();`
99			`if (foo_hidden () != -20)`
100			`abort ();`
101			`if (ret != 1 \|\| (p) () != *ret)`
102			`abort ();`
103
104			`f = dlsym (h, "get_foo_protected_p");`
105			`if (f == NULL)`
106			`{`
107			`printf ("symbol not found: %s\n", dlerror ());`
108			`return 1;`
109			`}`
110
111			`ret = dlsym (h, "ret_foo_protected");`
112			`if (ret == NULL)`
113			`{`
114			`printf ("symbol not found: %s\n", dlerror ());`
115			`return 1;`
116			`}`
117
118			`p = (*f) ();`
119			`if (p == foo_protected)`
120			`abort ();`
121			`if (foo_protected () != -40)`
122			`abort ();`
123			`if (ret != 0 \|\| (p) () != *ret)`
124			`abort ();`
125
126			`if (dlclose (h) != 0)`
127			`{`
128			`printf ("cannot close: %s\n", dlerror ());`
129			`return 1;`
130			`}`
131
132			`return 0;`
133			`}`

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[/] [open8_urisc/] [trunk/] [gnu/] [binutils/] [gold/] [testsuite/] [ifuncmain3.c] - Blame information for rev 158