gcc/config/arc/arc-c.c

   1 /* Copyright (C) 2016-2017 Free Software Foundation, Inc.
   2
   3    This file is part of GCC.
   4
   5    GCC is free software; you can redistribute it and/or modify it
   6    under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3, or (at your option)
   8    any later version.
   9
  10    GCC is distributed in the hope that it will be useful, but WITHOUT
  11    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  12    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  13    License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with GCC; see the file COPYING3.  If not see
  17    <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #include "config.h"
  21 #include "system.h"
  22 #include "coretypes.h"
  23 #include "tm.h"
  24 #include "tree.h"
  25 #include "memmodel.h"
  26 #include "tm_p.h"
  27 #include "cpplib.h"
  28 #include "c-family/c-common.h"
  29 #include "target.h"
  30
  31 #define builtin_define(TXT) cpp_define (pfile, TXT)
  32 #define builtin_assert(TXT) cpp_assert (pfile, TXT)
  33
  34 /* Define or undefine macros based on the current target.  */
  35
  36 static void
  37 def_or_undef_macro (cpp_reader* pfile, const char *name, bool def_p)
  38 {
  39   if (def_p)
  40     cpp_define (pfile, name);
  41   else
  42     cpp_undef (pfile, name);
  43 }
  44
  45 /* Helper for TARGET_CPU_CPP_BUILTINS hook.  */
  46
  47 void
  48 arc_cpu_cpp_builtins (cpp_reader * pfile)
  49 {
  50   builtin_assert ("cpu=arc");
  51   builtin_assert ("machine=arc");
  52
  53   builtin_define ("__arc__");
  54
  55 #undef ARC_C_DEF
  56 #define ARC_C_DEF(NAME, CONDITION)              \
  57   def_or_undef_macro (pfile, NAME, CONDITION);
  58
  59 #include "arc-c.def"
  60 #undef ARC_C_DEF
  61
  62   builtin_define_with_int_value ("__ARC_TLS_REGNO__",
  63                                  arc_tp_regno);
  64
  65   builtin_define (TARGET_BIG_ENDIAN
  66                   ? "__BIG_ENDIAN__" : "__LITTLE_ENDIAN__");
  67   if (TARGET_BIG_ENDIAN)
  68     builtin_define ("__big_endian__");
  69
  70 }