sysdeps/i386/i686/multiarch/strstr-c.c

   1 /* Multiple versions of strstr
   2    All versions must be listed in ifunc-impl-list.c.  */
   3
   4 #include "init-arch.h"
   5
   6 #define STRSTR __strstr_ia32
   7 #if defined SHARED && defined DO_VERSIONING && !defined NO_HIDDEN
   8 #undef libc_hidden_builtin_def
   9 #define libc_hidden_builtin_def(name) \
  10   __hidden_ver1 (__strstr_ia32, __GI_strstr, __strstr_ia32);
  11 #endif
  12
  13 /* Redefine strstr so that the compiler won't complain about the type
  14    mismatch with the IFUNC selector in strong_alias, below.  */
  15 #undef strstr
  16 #define strstr __redirect_strstr
  17
  18 #include "string/strstr.c"
  19
  20 extern __typeof (__redirect_strstr) __strstr_sse42 attribute_hidden;
  21 extern __typeof (__redirect_strstr) __strstr_ia32 attribute_hidden;
  22
  23 /* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle
  24    ifunc symbol properly.  */
  25 extern __typeof (__redirect_strstr) __libc_strstr;
  26 libc_ifunc (__libc_strstr, HAS_SSE4_2 ? __strstr_sse42 : __strstr_ia32)
  27
  28 #undef strstr
  29 strong_alias (__libc_strstr, strstr)