gnu/dist/gcc4/gcc/testsuite/gcc.dg/weak/weak-5.c

   1 /* { dg-do compile } */
   2 /* { dg-require-weak "" } */
   3 /* { dg-require-alias "" } */
   4 /* { dg-options "-fno-common" } */
   5
   6 /* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?vfoo1a" } } */
   7 /* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?vfoo1b" } } */
   8 /* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?vfoo1c" } } */
   9 /* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?vfoo1d" } } */
  10 /* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?vfoo1e" } } */
  11 /* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?vfoo1f" } } */
  12 /* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?vfoo1g" } } */
  13 /* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?vfoo1h" } } */
  14 /* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?vfoo1i" } } */
  15 /* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?vfoo1j" } } */
  16 /* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?vfoo1k" } } */
  17 /* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?vfoo1l" } } */
  18
  19 /* test variable addresses with __attribute__ ((weak)) */
  20
  21 extern int vfoo1a __attribute__((weak));
  22 extern int vfoo1a;
  23 void * foo1a (void)
  24 {
  25   return (void *)&vfoo1a;
  26 }
  27
  28
  29 extern int vfoo1b;
  30 extern int vfoo1b __attribute__((weak));
  31 void * foo1b (void)
  32 {
  33   return (void *)&vfoo1b;
  34 }
  35
  36
  37 extern int vfoo1c;
  38 void * foo1c (void)
  39 {
  40   return (void *)&vfoo1c;
  41 }
  42 extern int vfoo1c __attribute__((weak)); /* { dg-warning "unspecified behavior" } */
  43
  44
  45 extern int vfoo1d __attribute__((weak));
  46 int vfoo1d;
  47 void * foo1d (void)
  48 {
  49   return (void *)&vfoo1d;
  50 }
  51
  52
  53 int vfoo1e;
  54 extern int vfoo1e __attribute__((weak));
  55 void * foo1e (void)
  56 {
  57   return (void *)&vfoo1e;
  58 }
  59
  60
  61 int vfoo1f;
  62 void * foo1f (void)
  63 {
  64   return (void *)&vfoo1f;
  65 }
  66 extern int vfoo1f __attribute__((weak)); /* { dg-warning "unspecified behavior" } */
  67
  68
  69 extern int vfoo1g;
  70 void * foo1g (void)
  71 {
  72   return (void *)&vfoo1g;
  73 }
  74 int vfoo1g __attribute__((weak)); /* { dg-warning "unspecified behavior" } */
  75
  76
  77 extern int vfoo1h __attribute__((weak));
  78 void * foo1h (void)
  79 {
  80   return (void *)&vfoo1h;
  81 }
  82 extern int vfoo1h __attribute__((weak));
  83 int vfoo1h;
  84
  85
  86 extern int vfoo1i __attribute__((weak));
  87 void * foo1i (void)
  88 {
  89   return (void *)&vfoo1i;
  90 }
  91 extern int vfoo1i __attribute__((weak));
  92 extern int vfoo1i;
  93
  94
  95 extern int vfoo1j __attribute__((weak));
  96 void * foo1j (void)
  97 {
  98   return (void *)&vfoo1j;
  99 }
 100 extern int vfoo1j;
 101 extern int vfoo1j __attribute__((weak));
 102
 103
 104 extern int vfoo1k __attribute__((weak));
 105 int vfoo1k = 1;
 106
 107
 108 int vfoox1l = 1;
 109 extern int vfoo1l __attribute__((weak, alias ("vfoox1l")));