ld/ldgld68k.c

   1 /* Copyright (C) 1991 Free Software Foundation, Inc.
   2
   3 This file is part of GLD, the Gnu Linker.
   4
   5 GLD is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU General Public License as published by
   7 the Free Software Foundation; either version 1, or (at your option)
   8 any later version.
   9
  10 GLD is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with GLD; see the file COPYING.  If not, write to
  17 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
  18
  19 /*
  20  *  $Id:#
  21 */
  22
  23 /*
  24  * emulate the original gld running on a 68k system
  25  *
  26  *  Written by Steve Chamberlain steve@cygnus.com
  27  */
  28
  29
  30 #include "sysdep.h"
  31 #include "bfd.h"
  32
  33 #include "ld.h"
  34 #include "config.h"
  35 #include "ldemul.h"
  36 #include "ldfile.h"
  37 #include "ldmisc.h"
  38
  39 extern  boolean lang_float_flag;
  40
  41
  42 extern enum bfd_architecture ldfile_output_architecture;
  43 extern unsigned long ldfile_output_machine;
  44 extern char *ldfile_output_machine_name;
  45
  46 extern bfd *output_bfd;
  47
  48
  49
  50 static void gld68k_before_parse()
  51 {
  52   ldfile_add_library_path("/lib");
  53   ldfile_add_library_path("/usr/lib");
  54   ldfile_add_library_path("/usr/local/lib/lib");
  55   ldfile_output_architecture = bfd_arch_m68k;
  56 }
  57
  58
  59 static void
  60 gld68k_after_parse()
  61 {
  62
  63 }
  64
  65 static void
  66 gld68k_after_allocation()
  67 {
  68
  69 }
  70
  71 static void
  72 gld68k_before_allocation()
  73 {
  74
  75 }
  76
  77
  78 static void
  79 gld68k_set_output_arch()
  80 {
  81   /* Set the output architecture and machine if possible */
  82   unsigned long  machine = 0;
  83   bfd_set_arch_mach(output_bfd, ldfile_output_architecture, machine);
  84 }
  85
  86 static char *
  87 gld68k_choose_target()
  88 {
  89   char *from_outside = getenv(TARGET_ENVIRON);
  90   if (from_outside != (char *)NULL)
  91     return from_outside;
  92   return GLD68K_TARGET;
  93 }
  94
  95 static void
  96 gld68k_syslib()
  97 {
  98   info("%S SYSLIB ignored\n");
  99 }
 100
 101 static void
 102 gld68k_hll(ignore)
 103 char  *ignore;
 104 {
 105   info("%S HLL ignored\n");
 106 }
 107
 108 static char *gld68k_script  =
 109 #include "ldgld68k.x"
 110 ;
 111
 112 static char *gld68k_script_option_Ur  =
 113 #include "ldgld68kUr.x"
 114 ;
 115 static char *gld68k_script_option_r  =
 116 #include "ldgld68kr.x"
 117 ;
 118 static char *gld68k_get_script()
 119 {
 120   extern ld_config_type config;
 121   if (config.relocateable_output == true &&
 122       config.build_constructors == true) {
 123     return gld68k_script_option_Ur;
 124   }
 125   if (config.relocateable_output) {
 126     return gld68k_script_option_r;
 127   }
 128
 129   return gld68k_script;
 130 }
 131 struct ld_emulation_xfer_struct ld_gld68k_emulation =
 132 {
 133   gld68k_before_parse,
 134   gld68k_syslib,
 135   gld68k_hll,
 136   gld68k_after_parse,
 137   gld68k_after_allocation,
 138   gld68k_set_output_arch,
 139   gld68k_choose_target,
 140   gld68k_before_allocation,
 141   gld68k_get_script,
 142 };
 143