ld/ldgld.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 /*
  25  * emulate the original gld
  26  *
  27  *  Written by Steve Chamberlain steve@cygnus.com
  28  */
  29
  30
  31 #include "sysdep.h"
  32 #include "bfd.h"
  33
  34
  35 #include "ld.h"
  36 #include "config.h"
  37 #include "ldemul.h"
  38 #include "ldfile.h"
  39 #include "ldmisc.h"
  40
  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 static void gld_before_parse()
  53 {
  54   ldfile_add_library_path("/lib");
  55   ldfile_add_library_path("/usr/lib");
  56   ldfile_add_library_path("/usr/local/lib/lib");
  57 }
  58
  59
  60 static void
  61 gld_after_parse()
  62 {
  63
  64 }
  65
  66 static void
  67 gld_after_allocation()
  68 {
  69
  70 }
  71
  72 static void
  73 gld_before_allocation()
  74 {
  75
  76 }
  77
  78
  79 static void
  80 gld_set_output_arch()
  81 {
  82   /* Set the output architecture and machine if possible */
  83   bfd_set_arch_mach(output_bfd, ldfile_output_architecture, ldfile_output_machine);
  84 }
  85
  86 static char *
  87 gld_choose_target()
  88 {
  89   char *from_outside = getenv(TARGET_ENVIRON);
  90   if (from_outside != (char *)NULL)
  91     return from_outside;
  92   return GLD_TARGET;
  93 }
  94
  95 static void
  96 gld_syslib()
  97 {
  98   info("%S SYSLIB ignored\n");
  99 }
 100
 101 static void
 102 gld_hll(ignore)
 103 char  *ignore;
 104 {
 105   info("%S HLL ignored\n");
 106 }
 107
 108 static char *gld_script =
 109 #include "ldgld.x"
 110 ;
 111
 112 static char *gld_script_option_Ur  =
 113 #include "ldgldUr.x"
 114 ;
 115
 116 static char *gld_script_option_r  =
 117 #include "ldgldr.x"
 118 ;
 119
 120 static char *gld_get_script()
 121 {
 122   extern ld_config_type config;
 123   if (config.relocateable_output == true &&
 124       config.build_constructors == true) {
 125     return gld_script_option_Ur;
 126   }
 127   if (config.relocateable_output) {
 128     return gld_script_option_r;
 129   }
 130
 131   return gld_script;
 132 }
 133 struct ld_emulation_xfer_struct ld_gld_emulation =
 134 {
 135   gld_before_parse,
 136   gld_syslib,
 137   gld_hll,
 138   gld_after_parse,
 139   gld_after_allocation,
 140   gld_set_output_arch,
 141   gld_choose_target,
 142   gld_before_allocation,
 143   gld_get_script,
 144 };
 145