gcc/common/config/m68k/m68k-common.cc

   1 /* Common hooks for Motorola 68000 family.
   2    Copyright (C) 1987-2023 Free Software Foundation, Inc.
   3
   4 This file is part of GCC.
   5
   6 GCC is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 3, or (at your option)
   9 any later version.
  10
  11 GCC is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GCC; see the file COPYING3.  If not see
  18 <http://www.gnu.org/licenses/>.  */
  19
  20 #include "config.h"
  21 #include "system.h"
  22 #include "coretypes.h"
  23 #include "diagnostic-core.h"
  24 #include "tm.h"
  25 #include "common/common-target.h"
  26 #include "common/common-target-def.h"
  27 #include "opts.h"
  28 #include "flags.h"
  29
  30 /* Implement TARGET_HANDLE_OPTION.  */
  31
  32 static bool
  33 m68k_handle_option (struct gcc_options *opts,
  34                     struct gcc_options *opts_set,
  35                     const struct cl_decoded_option *decoded,
  36                     location_t loc)
  37 {
  38   size_t code = decoded->opt_index;
  39   const char *arg = decoded->arg;
  40   int value = decoded->value;
  41
  42   switch (code)
  43     {
  44     case OPT_m68020_40:
  45       opts->x_m68k_tune_option = u68020_40;
  46       opts_set->x_m68k_tune_option = (uarch_type) 1;
  47       opts->x_m68k_cpu_option = m68020;
  48       opts_set->x_m68k_cpu_option = (target_device) 1;
  49       return true;
  50
  51     case OPT_m68020_60:
  52       opts->x_m68k_tune_option = u68020_60;
  53       opts_set->x_m68k_tune_option = (uarch_type) 1;
  54       opts->x_m68k_cpu_option = m68020;
  55       opts_set->x_m68k_cpu_option = (target_device) 1;
  56       return true;
  57
  58     case OPT_mshared_library_id_:
  59       if (value > MAX_LIBRARY_ID)
  60         error_at (loc, "%<-mshared-library-id=%s%> is not between 0 and %d",
  61                   arg, MAX_LIBRARY_ID);
  62       else
  63         {
  64           char *tmp;
  65           asprintf (&tmp, "%d", (value * -4) - 4);
  66           opts->x_m68k_library_id_string = tmp;
  67         }
  68       return true;
  69
  70     default:
  71       return true;
  72     }
  73 }
  74
  75 #undef TARGET_HANDLE_OPTION
  76 #define TARGET_HANDLE_OPTION m68k_handle_option
  77
  78 struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER;