sysdeps/x86_64/multiarch/strcmp-naming.h

   1 #ifndef _STRCMP_NAMING_H_
   2 #define _STRCMP_NAMING_H_
   3
   4 /* Utility macros.  */
   5 #define STRCMP_SUFFIX(x, y) x##y
   6 #define STRCMP_NAME(x, y) STRCMP_SUFFIX (x, y)
   7
   8 /* Setup base of all definitions.  */
   9 #define STRNCASECMP_BASE __strncasecmp
  10 #define STRCASECMP_BASE __strcasecmp
  11 #define WCSCMP_BASE __wcscmp
  12
  13 #if defined USE_MULTIARCH && IS_IN (libc)
  14 # define WCSNCMP_BASE __wcsncmp
  15 # define STRNCMP_BASE __strncmp
  16 # define STRCMP_BASE __strcmp
  17
  18 #else
  19 /* Covers IS_IN (rtld) or non-multiarch build.  */
  20 # define WCSNCMP_BASE wcsncmp
  21 # define STRNCMP_BASE strncmp
  22 # define STRCMP_BASE strcmp
  23
  24 # undef STRCMP_ISA
  25 # define STRCMP_ISA
  26 #endif
  27
  28 #if IS_IN (rtld) || defined USE_MULTIARCH
  29 # define ISA_HIDDEN_JUMPTARGET(...) __VA_ARGS__
  30 #else
  31 # define ISA_HIDDEN_JUMPTARGET(...) HIDDEN_JUMPTARGET (__VA_ARGS__)
  32 #endif
  33
  34 /* Get correct symbol for OVERFLOW_STRCMP, STRCMP, and
  35    STRCASECMP.  */
  36 #if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
  37
  38 # if defined USE_AS_WCSCMP || defined USE_AS_WCSNCMP
  39 #  define OVERFLOW_STRCMP_SYM WCSCMP_BASE
  40 #  define STRCMP_SYM WCSNCMP_BASE
  41 # elif defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
  42 #  define OVERFLOW_STRCMP_SYM STRCMP_NAME (STRCASECMP_BASE, _l)
  43 #  define STRCMP_SYM STRCMP_NAME (STRNCASECMP_BASE, _l)
  44 # else
  45 #  define OVERFLOW_STRCMP_SYM STRCMP_BASE
  46 #  define STRCMP_SYM STRNCMP_BASE
  47 # endif
  48
  49 # define STRCASECMP_SYM STRNCASECMP_BASE
  50 # define OVERFLOW_STRCMP \
  51     ISA_HIDDEN_JUMPTARGET (STRCMP_NAME (OVERFLOW_STRCMP_SYM, STRCMP_ISA))
  52 #else
  53 # ifdef USE_AS_WCSCMP
  54 #  define STRCMP_SYM WCSCMP_BASE
  55 # elif defined USE_AS_STRCASECMP_L
  56 #  define STRCMP_SYM STRCMP_NAME (STRCASECMP_BASE, _l)
  57 # else
  58 #  define STRCMP_SYM STRCMP_BASE
  59 # endif
  60
  61 # define STRCASECMP_SYM STRCASECMP_BASE
  62 #endif
  63
  64 #define STRCASECMP_L_NONASCII STRCMP_NAME (STRCASECMP_SYM, _l_nonascii)
  65 #define STRCASECMP STRCMP_NAME (STRCASECMP_SYM, STRCMP_ISA)
  66 #define STRCMP STRCMP_NAME (STRCMP_SYM, STRCMP_ISA)
  67
  68 #endif