gcc/config/avr/avr-c.c

   1 /* Copyright (C) 2009, 2010
   2    Free Software Foundation, Inc.
   3    Contributed by Anatoly Sokolov (aesok@post.ru)
   4
   5    This file is part of GCC.
   6
   7    GCC is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3, or (at your option)
  10    any later version.
  11
  12    GCC is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with GCC; see the file COPYING3.  If not see
  19    <http://www.gnu.org/licenses/>.  */
  20
  21 /* Not included in avr.c since this requires C front end.  */
  22
  23 #include "config.h"
  24 #include "system.h"
  25 #include "coretypes.h"
  26 #include "tm.h"
  27 #include "tm_p.h"
  28 #include "cpplib.h"
  29 #include "tree.h"
  30 #include "c-family/c-common.h"
  31 #include "langhooks.h"
  32
  33
  34 /* Implement `REGISTER_TARGET_PRAGMAS'.  */
  35
  36 void
  37 avr_register_target_pragmas (void)
  38 {
  39   c_register_addr_space ("__pgm", ADDR_SPACE_PGM);
  40 }
  41
  42
  43 /* Worker function for TARGET_CPU_CPP_BUILTINS.  */
  44
  45 void
  46 avr_cpu_cpp_builtins (struct cpp_reader *pfile)
  47 {
  48   builtin_define_std ("AVR");
  49
  50   if (avr_current_arch->macro)
  51     cpp_define (pfile, avr_current_arch->macro);
  52   if (avr_extra_arch_macro)
  53     cpp_define (pfile, avr_extra_arch_macro);
  54   if (avr_current_arch->have_elpm)
  55     cpp_define (pfile, "__AVR_HAVE_RAMPZ__");
  56   if (avr_current_arch->have_elpm)
  57     cpp_define (pfile, "__AVR_HAVE_ELPM__");
  58   if (avr_current_arch->have_elpmx)
  59     cpp_define (pfile, "__AVR_HAVE_ELPMX__");
  60   if (avr_current_arch->have_movw_lpmx)
  61     {
  62       cpp_define (pfile, "__AVR_HAVE_MOVW__");
  63       cpp_define (pfile, "__AVR_HAVE_LPMX__");
  64     }
  65   if (avr_current_arch->asm_only)
  66     cpp_define (pfile, "__AVR_ASM_ONLY__");
  67   if (avr_current_arch->have_mul)
  68     {
  69       cpp_define (pfile, "__AVR_ENHANCED__");
  70       cpp_define (pfile, "__AVR_HAVE_MUL__");
  71     }
  72   if (avr_current_arch->have_jmp_call)
  73     {
  74       cpp_define (pfile, "__AVR_MEGA__");
  75       cpp_define (pfile, "__AVR_HAVE_JMP_CALL__");
  76     }
  77   if (avr_current_arch->have_eijmp_eicall)
  78     {
  79       cpp_define (pfile, "__AVR_HAVE_EIJMP_EICALL__");
  80       cpp_define (pfile, "__AVR_3_BYTE_PC__");
  81     }
  82   else
  83     {
  84       cpp_define (pfile, "__AVR_2_BYTE_PC__");
  85     }
  86
  87   if (avr_current_device->short_sp)
  88     cpp_define (pfile, "__AVR_HAVE_8BIT_SP__");
  89   else
  90     cpp_define (pfile, "__AVR_HAVE_16BIT_SP__");
  91
  92   if (TARGET_NO_INTERRUPTS)
  93     cpp_define (pfile, "__NO_INTERRUPTS__");
  94
  95   if (avr_current_device->errata_skip)
  96     {
  97       cpp_define (pfile, "__AVR_ERRATA_SKIP__");
  98
  99       if (avr_current_arch->have_jmp_call)
 100         cpp_define (pfile, "__AVR_ERRATA_SKIP_JMP_CALL__");
 101     }
 102
 103   /* Define builtin macros so that the user can easily query if or if not
 104      non-generic address spaces (and which) are supported.
 105      This is only supported for C.  For C++, a language extension is needed
 106      (as mentioned in ISO/IEC DTR 18037; Annex F.2) which is not
 107      implemented in GCC up to now.  */
 108
 109   if (!strcmp (lang_hooks.name, "GNU C"))
 110     {
 111       cpp_define (pfile, "__PGM=__pgm");
 112     }
 113
 114   /* Define builtin macros so that the user can
 115      easily query if or if not a specific builtin
 116      is available. */
 117
 118   cpp_define (pfile, "__BUILTIN_AVR_NOP");
 119   cpp_define (pfile, "__BUILTIN_AVR_SEI");
 120   cpp_define (pfile, "__BUILTIN_AVR_CLI");
 121   cpp_define (pfile, "__BUILTIN_AVR_WDR");
 122   cpp_define (pfile, "__BUILTIN_AVR_SLEEP");
 123   cpp_define (pfile, "__BUILTIN_AVR_SWAP");
 124   cpp_define (pfile, "__BUILTIN_AVR_DELAY_CYCLES");
 125
 126   cpp_define (pfile, "__BUILTIN_AVR_FMUL");
 127   cpp_define (pfile, "__BUILTIN_AVR_FMULS");
 128   cpp_define (pfile, "__BUILTIN_AVR_FMULSU");
 129
 130   cpp_define (pfile, "__INT24_MAX__=8388607L");
 131   cpp_define (pfile, "__INT24_MIN__=(-__INT24_MAX__-1)");
 132   cpp_define (pfile, "__UINT24_MAX__=16777215UL");
 133 }