ld/ld-gld960.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 Intels port of  gld
  25  */
  26
  27
  28 #include "sysdep.h"
  29 #include "bfd.h"
  30
  31
  32 #include "ld.h"
  33 #include "config.h"
  34 #include "ld-emul.h"
  35 #include "ldfile.h"
  36 #include "ldmisc.h"
  37
  38
  39 /* IMPORTS */
  40 extern char *output_filename;
  41 extern  boolean lang_float_flag;
  42
  43
  44 extern enum bfd_architecture ldfile_output_architecture;
  45 extern unsigned long ldfile_output_machine;
  46 extern char *ldfile_output_machine_name;
  47
  48 extern bfd *output_bfd;
  49
  50
  51
  52 #ifdef GNU960
  53
  54 static void
  55 gld960_before_parse()
  56 {
  57   static char *env_variables[] = { "G960LIB", "G960BASE", 0 };
  58   char **p;
  59   char *env ;
  60
  61   for ( p = env_variables; *p; p++ ){
  62     env =  (char *) getenv(*p);
  63     if (env) {
  64       ldfile_add_library_path(concat(env,"/lib/libbout",""));
  65     }
  66   }
  67   ldfile_output_architecture = bfd_arch_i960;
  68 }
  69
  70 #else   /* not GNU960 */
  71
  72 static void gld960_before_parse()
  73 {
  74   char *env ;
  75   env =  getenv("G960LIB");
  76   if (env) {
  77     ldfile_add_library_path(env);
  78   }
  79   env = getenv("G960BASE");
  80   if (env) {
  81     ldfile_add_library_path(concat(env,"/lib",""));
  82   }
  83   ldfile_output_architecture = bfd_arch_i960;
  84 }
  85
  86 #endif  /* GNU960 */
  87
  88
  89 static void
  90 gld960_after_parse()
  91 {
  92
  93 }
  94
  95 static void
  96 gld960_after_allocation()
  97 {
  98
  99 }
 100
 101 static void
 102 gld960_before_allocation()
 103 {
 104
 105 }
 106
 107
 108 static void
 109 gld960_set_output_arch()
 110 {
 111   /* Set the output architecture and machine if possible */
 112   unsigned long  machine = 0;
 113   bfd_set_arch_mach(output_bfd, ldfile_output_architecture, machine);
 114 }
 115
 116 static char *
 117 gld960_choose_target()
 118 {
 119 #ifdef GNU960
 120
 121   output_filename = "b.out";
 122   return bfd_make_targ_name(BFD_BOUT_FORMAT,HOST_BYTE_ORDER_BIG_P);
 123
 124 #else
 125
 126   char *from_outside = getenv(TARGET_ENVIRON);
 127   output_filename = "b.out";
 128
 129   if (from_outside != (char *)NULL)
 130     return from_outside;
 131   return GLD960_TARGET;
 132
 133 #endif
 134 }
 135
 136 static void
 137 gld960_syslib()
 138 {
 139   info("%S SYSLIB ignored\n");
 140 }
 141
 142 static void
 143 gld960_hll()
 144 {
 145   info("%S HLL ignored\n");
 146 }
 147
 148
 149 static char *script =
 150 #include "ld-gld960.x"
 151 ;
 152
 153
 154 static char *
 155 gld960_get_script()
 156 {
 157 return script;
 158 }
 159
 160 struct ld_emulation_xfer_struct ld_gld960_emulation =
 161 {
 162   gld960_before_parse,
 163   gld960_syslib,
 164   gld960_hll,
 165   gld960_after_parse,
 166   gld960_after_allocation,
 167   gld960_set_output_arch,
 168   gld960_choose_target,
 169   gld960_before_allocation,
 170   gld960_get_script,
 171 };