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