derek.holloway
7502bf64a4
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96 lines
1.5 KiB
C
96 lines
1.5 KiB
C
/* Test STT_GNU_IFUNC symbols:
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1. Direct function call.
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2. Function pointer.
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3. Visibility.
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*/
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#include "ifunc-sel.h"
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int global __attribute__ ((visibility ("hidden"))) = -1;
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static int
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one (void)
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{
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return 1;
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}
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static int
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minus_one (void)
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{
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return -1;
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}
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static int
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zero (void)
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{
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return 0;
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}
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void * foo_ifunc (void) __asm__ ("foo");
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__asm__(".type foo, %gnu_indirect_function");
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void *
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foo_ifunc (void)
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{
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return ifunc_sel (one, minus_one, zero);
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}
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void * foo_hidden_ifunc (void) __asm__ ("foo_hidden");
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__asm__(".type foo_hidden, %gnu_indirect_function");
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void *
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foo_hidden_ifunc (void)
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{
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return ifunc_sel (minus_one, one, zero);
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}
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void * foo_protected_ifunc (void) __asm__ ("foo_protected");
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__asm__(".type foo_protected, %gnu_indirect_function");
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void *
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foo_protected_ifunc (void)
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{
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return ifunc_sel (one, zero, minus_one);
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}
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/* Test hidden indirect function. */
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__asm__(".hidden foo_hidden");
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/* Test protected indirect function. */
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__asm__(".protected foo_protected");
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extern int foo (void);
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extern int foo_hidden (void);
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extern int foo_protected (void);
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extern int ret_foo;
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extern int ret_foo_hidden;
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extern int ret_foo_protected;
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#define FOO_P
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typedef int (*foo_p) (void);
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extern foo_p get_foo_p (void);
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extern foo_p get_foo_hidden_p (void);
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extern foo_p get_foo_protected_p (void);
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foo_p
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get_foo_p (void)
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{
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ret_foo = foo ();
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return foo;
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}
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foo_p
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get_foo_hidden_p (void)
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{
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ret_foo_hidden = foo_hidden ();
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return foo_hidden;
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}
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foo_p
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get_foo_protected_p (void)
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{
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ret_foo_protected = foo_protected ();
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return foo_protected;
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}
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