ld/ld-gld.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 "ld-emul.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   ldfile_output_architecture = bfd_arch_sparc;
  58 }
  59
  60
  61 static void
  62 gld_after_parse()
  63 {
  64
  65 }
  66
  67 static void
  68 gld_after_allocation()
  69 {
  70
  71 }
  72
  73 static void
  74 gld_before_allocation()
  75 {
  76
  77 }
  78
  79
  80 static void
  81 gld_set_output_arch()
  82 {
  83   /* Set the output architecture and machine if possible */
  84   unsigned long  machine = 0;
  85   bfd_set_arch_mach(output_bfd, ldfile_output_architecture, machine);
  86 }
  87
  88 static char *
  89 gld_choose_target()
  90 {
  91   char *from_outside = getenv(TARGET_ENVIRON);
  92   if (from_outside != (char *)NULL)
  93     return from_outside;
  94   return GLD_TARGET;
  95 }
  96
  97 static void
  98 gld_syslib()
  99 {
 100   info("%S SYSLIB ignored\n");
 101 }
 102
 103 static void
 104 gld_hll(ignore)
 105 char  *ignore;
 106 {
 107   info("%S HLL ignored\n");
 108 }
 109
 110 static char *gld_script =
 111 #include "ld-gld.x"
 112 ;
 113
 114 static char *gld_script_option_Ur  =
 115 #include "ld-gld-Ur.x"
 116 ;
 117
 118 static char *gld_script_option_r  =
 119 #include "ld-gld-r.x"
 120 ;
 121
 122 static char *gld_get_script()
 123 {
 124   extern ld_config_type config;
 125   if (config.relocateable_output == true &&
 126       config.build_constructors == true) {
 127     return gld_script_option_Ur;
 128   }
 129   if (config.relocateable_output) {
 130     return gld_script_option_r;
 131   }
 132
 133   return gld_script;
 134 }
 135 struct ld_emulation_xfer_struct ld_gld_emulation =
 136 {
 137   gld_before_parse,
 138   gld_syslib,
 139   gld_hll,
 140   gld_after_parse,
 141   gld_after_allocation,
 142   gld_set_output_arch,
 143   gld_choose_target,
 144   gld_before_allocation,
 145   gld_get_script,
 146 };
 147