Viewing file:  weak-3.c (1.9 KB) -rw-r--r--
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/* { dg-do compile } */
/* { dg-require-alias "" } */
/* { dg-require-weak "" } */
/* { dg-options "-fno-common -Waddress" } */
/* { dg-skip-if "" { x86_64-*-mingw* } } */
/* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?ffoo1a" } } */
/* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?ffoo1b" } } */
/* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?ffoo1c" } } */
/* { dg-final { scan-assembler-not "weak\[^ \t\]*\[ \t\]_?ffoo1d" } } */
/* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?ffoo1e" } } */
/* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?ffoo1f" } } */
/* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?ffoo1g" } } */
/* test function addresses with __attribute__((weak)) */
extern void * ffoo1a (void) __attribute__((weak));
extern void * ffoo1a (void);
void * foo1a (void)
{
return (void *)ffoo1a;
}
extern void * ffoo1b (void);
extern void * ffoo1b (void) __attribute__((weak));
void * foo1b (void)
{
return (void *)ffoo1b;
}
extern void * ffoo1c (void);
void * foo1c (void)
{
return (void *)ffoo1c;
}
extern void * ffoo1c (void) __attribute__((weak));
int ffoo1d (void);
int ffoo1d (void) __attribute__((weak));
extern void * ffoo1e (void);
extern void * ffoo1e (void) __attribute__((weak));
void * foo1e (void)
{
if (ffoo1e)
ffoo1e ();
return 0;
}
extern void * ffoo1f (void);
void * foo1f (void)
{
if (ffoo1f) /* { dg-warning "-Waddress" } */
ffoo1f ();
return 0;
}
void * ffoox1f (void) { return (void *)0; }
extern void * ffoo1f (void) __attribute__((weak, alias ("ffoox1f")));
extern void * ffoo1g (void);
void * ffoox1g (void) { return (void *)0; }
extern void * ffoo1g (void) __attribute__((weak, alias ("ffoox1g")));
void * foo1g (void)
{
/* ffoo1g is a weak alias for a symbol defined in this file, expect
a -Waddress for the test (which is folded to true). */
if (ffoo1g) // { dg-warning "-Waddress" }
ffoo1g ();
return 0;
}
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