ld/emultempl/z80.em

   1 # This shell script emits C code -*- C -*-
   2 # to keep track of the machine type of Z80 object files
   3 # It does some substitutions.
   4 #   Copyright (C) 2005-2015 Free Software Foundation, Inc.
   5 # This file is part of the GNU Binutils.
   6 #
   7 # This program 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 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # This program 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 this program; if not, write to the Free Software
  19 # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  20 # MA 02110-1301, USA.
  21
  22 LDEMUL_BEFORE_PARSE=gldz80_before_parse
  23 LDEMUL_RECOGNIZED_FILE=gldz80_recognized_file
  24 LDEMUL_AFTER_OPEN=gldz80_after_open
  25
  26 fragment <<EOF
  27 /* --- \begin{z80.em} */
  28 /* Codes for machine types, bitwise or gives the code to use for the
  29    output.  */
  30 #define M_Z80STRICT 1
  31 #define M_Z80 3
  32 #define M_Z80FULL 7
  33 #define M_R800 11
  34 #define M_Z80ANY 15
  35
  36 /* Bitwise or of the machine types seen so far.  */
  37 static int result_mach_type;
  38
  39 static void
  40 ${LDEMUL_BEFORE_PARSE} (void)
  41 {
  42 #ifndef TARGET_                 /* I.e., if not generic.  */
  43   ldfile_set_output_arch ("`echo ${ARCH}`", bfd_arch_unknown);
  44 #endif /* not TARGET_ */
  45   result_mach_type = M_Z80STRICT;
  46 }
  47
  48
  49 /* Update result_mach_type.  */
  50 static bfd_boolean
  51 ${LDEMUL_RECOGNIZED_FILE} (lang_input_statement_type *entry)
  52 {
  53   unsigned long mach_type;
  54
  55   mach_type = bfd_get_mach (entry->the_bfd);
  56   switch (mach_type)
  57     {
  58     case bfd_mach_z80strict:
  59       result_mach_type |= M_Z80STRICT;
  60       break;
  61     case bfd_mach_z80:
  62       result_mach_type |= M_Z80;
  63       break;
  64     case bfd_mach_z80full:
  65       result_mach_type |= M_Z80FULL;
  66       break;
  67     case bfd_mach_r800:
  68       result_mach_type |= M_R800;
  69       break;
  70     default:
  71       result_mach_type |= M_Z80ANY;
  72     }
  73   return FALSE;
  74 }
  75
  76 /* Set the machine type of the output file based on result_mach_type.  */
  77 static void
  78 gldz80_after_open (void)
  79 {
  80   unsigned long mach_type;
  81
  82   after_open_default ();
  83
  84   switch (result_mach_type)
  85     {
  86     case M_Z80STRICT:
  87       mach_type = bfd_mach_z80strict;
  88       break;
  89     case M_Z80:
  90       mach_type = bfd_mach_z80;
  91       break;
  92     case M_Z80FULL:
  93       mach_type = bfd_mach_z80full;
  94       break;
  95     case M_R800:
  96       mach_type = bfd_mach_r800;
  97       break;
  98     default:
  99       mach_type = 0;
 100     }
 101   bfd_set_arch_mach (link_info.output_bfd, bfd_arch_z80, mach_type);
 102 }
 103 /* --- \end{z80.em} */
 104 EOF