ld/testsuite/ld-elfvers/vers1.c

   1 /*
   2  * Basic test of versioning.  The idea with this is that we define
   3  * a bunch of definitions of the same symbol, and we can theoretically
   4  * then link applications against varying sets of these.
   5  */
   6 const char * show_bar1 = "asdf";
   7 const char * show_bar2 = "asdf";
   8
   9 extern int new2_foo();
  10 extern int bar33();
  11
  12 int
  13 bar()
  14 {
  15         return 3;
  16 }
  17
  18 /*
  19  * The 'hide' prefix is something so that we can automatically search the
  20  * symbol table and verify that none of these symbols were actually exported.
  21  */
  22 int
  23 hide_original_foo()
  24 {
  25         return 1+bar();
  26
  27 }
  28
  29 int
  30 hide_old_foo()
  31 {
  32         return 10+bar();
  33
  34 }
  35
  36 int
  37 hide_old_foo1()
  38 {
  39         return 100+bar();
  40
  41 }
  42
  43 int
  44 hide_new_foo()
  45 {
  46         return 1000+bar();
  47
  48 }
  49
  50 __asm__(".symver hide_original_foo,show_foo@");
  51 __asm__(".symver hide_old_foo,show_foo@VERS_1.1");
  52 __asm__(".symver hide_old_foo1,show_foo@VERS_1.2");
  53 __asm__(".symver hide_new_foo,show_foo@@VERS_2.0");
  54
  55
  56
  57 #ifdef DO_TEST10
  58 /* In test 10, we try and define a non-existant version node.  The linker
  59  * should catch this and complain. */
  60 int
  61 hide_new_bogus_foo()
  62 {
  63         return 1000+bar();
  64
  65 }
  66 __asm__(".symver hide_new_bogus_foo,show_foo@VERS_2.2");
  67 #endif
  68
  69
  70
  71
  72 #ifdef DO_TEST11
  73 /*
  74  * This test is designed to catch a couple of syntactic errors.  The assembler
  75  * should complain about both of the directives below.
  76  */
  77 void
  78 xyzzz()
  79 {
  80   new2_foo();
  81   bar33();
  82 }
  83
  84 __asm__(".symver new2_foo,fooVERS_2.0");
  85 __asm__(".symver bar33,bar@@VERS_2.0");
  86 #endif
  87
  88 #ifdef DO_TEST12
  89 /*
  90  * This test is designed to catch a couple of syntactic errors.  The assembler
  91  * should complain about both of the directives below.
  92  */
  93 void
  94 xyzzz()
  95 {
  96   new2_foo();
  97   bar33();
  98 }
  99
 100 __asm__(".symver bar33,bar@@VERS_2.0");
 101 #endif