glibc/elf/ifuncdep2.c

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/* Test 3 STT_GNU_IFUNC symbols. */
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#include "ifunc-sel.h"
int global = -1;
/* Can't use __attribute__((visibility("protected"))) until the GCC bug:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65248
is fixed. */
asm (".protected global");
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static int
one (void)
{
return 1;
}
static int
minus_one (void)
{
return -1;
}
static int
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zero (void)
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{
return 0;
}
void * foo1_ifunc (void) __asm__ ("foo1");
__asm__(".type foo1, %gnu_indirect_function");
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void *
inhibit_stack_protector
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foo1_ifunc (void)
{
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return ifunc_sel (one, minus_one, zero);
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}
void * foo2_ifunc (void) __asm__ ("foo2");
__asm__(".type foo2, %gnu_indirect_function");
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void *
inhibit_stack_protector
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foo2_ifunc (void)
{
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return ifunc_sel (minus_one, one, zero);
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}
void * foo3_ifunc (void) __asm__ ("foo3");
__asm__(".type foo3, %gnu_indirect_function");
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void *
inhibit_stack_protector
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foo3_ifunc (void)
{
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return ifunc_sel (one, zero, minus_one);
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}