sysdeps/ieee754/ldbl-opt/math_ldbl_opt.h

   1 /* -mlong-double-64 compatibility mode macros.  */
   2
   3 #include <nldbl-abi.h>
   4 #ifndef LONG_DOUBLE_COMPAT_VERSION
   5 # error "nldbl-abi.h must define LONG_DOUBLE_COMPAT_VERSION"
   6 #endif
   7
   8 #include <shlib-compat.h>
   9 #define LONG_DOUBLE_COMPAT(lib, introduced) \
  10   SHLIB_COMPAT(lib, introduced, LONG_DOUBLE_COMPAT_VERSION)
  11 #define long_double_symbol(lib, local, symbol) \
  12   long_double_symbol_1 (lib, local, symbol, LONG_DOUBLE_COMPAT_VERSION)
  13 #ifdef SHARED
  14 # define ldbl_hidden_def(local, name) libc_hidden_ver (local, name)
  15 # define ldbl_strong_alias(name, aliasname) \
  16   strong_alias (name, __GL_##name##_##aliasname) \
  17   long_double_symbol (libc, __GL_##name##_##aliasname, aliasname);
  18 # define ldbl_weak_alias(name, aliasname) \
  19   weak_alias (name, __GL_##name##_##aliasname) \
  20   long_double_symbol (libc, __GL_##name##_##aliasname, aliasname);
  21 # define long_double_symbol_1(lib, local, symbol, version) \
  22   versioned_symbol (lib, local, symbol, version)
  23 #else
  24 # define ldbl_hidden_def(local, name) libc_hidden_def (name)
  25 # define ldbl_strong_alias(name, aliasname) strong_alias (name, aliasname)
  26 # define ldbl_weak_alias(name, aliasname) weak_alias (name, aliasname)
  27 # ifndef __ASSEMBLER__
  28 /* Note that weak_alias cannot be used - it is defined to nothing
  29    in most of the C files.  */
  30 #  define long_double_symbol_1(lib, local, symbol, version) \
  31   _weak_alias (local, symbol)
  32 # else
  33 #  define long_double_symbol_1(lib, local, symbol, version) \
  34   weak_alias (local, symbol)
  35 # endif
  36 #endif
  37
  38 #ifndef __ASSEMBLER__
  39 # include <math.h>
  40 # include <math_private.h>
  41
  42 /* Set temporarily to non-zero if long double should be considered
  43    the same as double.  */
  44 extern __thread int __no_long_double attribute_tls_model_ie attribute_hidden;
  45 # define __ldbl_is_dbl __builtin_expect (__no_long_double, 0)
  46 #endif