ld/emultempl/gld960.em

   1 # This shell script emits a C file. -*- C -*-
   2 # It does some substitutions.
   3 cat >e${EMULATION_NAME}.c <<EOF
   4 /* Copyright 1991, 1992, 1994, 1999, 2000, 2001, 2002, 2003
   5    Free Software Foundation, Inc.
   6
   7 This file is part of GLD, the Gnu Linker.
   8
   9 GLD is free software; you can redistribute it and/or modify
  10 it under the terms of the GNU General Public License as published by
  11 the Free Software Foundation; either version 1, or (at your option)
  12 any later version.
  13
  14 GLD is distributed in the hope that it will be useful,
  15 but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 GNU General Public License for more details.
  18
  19 You should have received a copy of the GNU General Public License
  20 along with GLD; see the file COPYING.  If not, write to
  21 the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  22
  23 /*
  24  * emulate the Intels port of  gld
  25  */
  26
  27
  28 #include "bfd.h"
  29 #include "sysdep.h"
  30 #include "libiberty.h"
  31 #include "bfdlink.h"
  32
  33 #include "ld.h"
  34 #include "ldmisc.h"
  35 #include "ldmain.h"
  36
  37 #include "ldexp.h"
  38 #include "ldlang.h"
  39 #include "ldfile.h"
  40 #include "ldemul.h"
  41
  42 #ifdef GNU960
  43
  44 static void
  45 gld960_before_parse (void)
  46 {
  47   static char *env_variables[] = { "G960LIB", "G960BASE", 0 };
  48   char **p;
  49   char *env ;
  50
  51   for ( p = env_variables; *p; p++ ){
  52     env =  (char *) getenv(*p);
  53     if (env) {
  54       ldfile_add_library_path (concat (env,
  55                                        "/lib/libbout",
  56                                        (const char *) NULL),
  57                                FALSE);
  58     }
  59   }
  60   ldfile_output_architecture = bfd_arch_i960;
  61 }
  62
  63 #else   /* not GNU960 */
  64
  65 static void gld960_before_parse (void)
  66 {
  67   char *env ;
  68   env =  getenv("G960LIB");
  69   if (env) {
  70     ldfile_add_library_path(env, FALSE);
  71   }
  72   env = getenv("G960BASE");
  73   if (env)
  74     ldfile_add_library_path (concat (env, "/lib", (const char *) NULL), FALSE);
  75   ldfile_output_architecture = bfd_arch_i960;
  76 }
  77
  78 #endif  /* GNU960 */
  79
  80
  81 static void
  82 gld960_set_output_arch (void)
  83 {
  84   bfd_set_arch_mach(output_bfd, ldfile_output_architecture, bfd_mach_i960_core);
  85 }
  86
  87 static char *
  88 gld960_choose_target (int argc ATTRIBUTE_UNUSED, char **argv ATTRIBUTE_UNUSED)
  89 {
  90 #ifdef GNU960
  91
  92   output_filename = "b.out";
  93   return bfd_make_targ_name(BFD_BOUT_FORMAT, 0);
  94
  95 #else
  96
  97   char *from_outside = getenv(TARGET_ENVIRON);
  98   output_filename = "b.out";
  99
 100   if (from_outside != (char *)NULL)
 101     return from_outside;
 102
 103   return "b.out.little";
 104
 105 #endif
 106 }
 107
 108 static char *
 109 gld960_get_script (int *isfile)
 110 EOF
 111
 112 if test -n "$COMPILE_IN"
 113 then
 114 # Scripts compiled in.
 115
 116 # sed commands to quote an ld script as a C string.
 117 sc="-f stringify.sed"
 118
 119 cat >>e${EMULATION_NAME}.c <<EOF
 120 {
 121   *isfile = 0;
 122
 123   if (link_info.relocatable && config.build_constructors)
 124     return
 125 EOF
 126 sed $sc ldscripts/${EMULATION_NAME}.xu                 >> e${EMULATION_NAME}.c
 127 echo '  ; else if (link_info.relocatable) return'     >> e${EMULATION_NAME}.c
 128 sed $sc ldscripts/${EMULATION_NAME}.xr                 >> e${EMULATION_NAME}.c
 129 echo '  ; else if (!config.text_read_only) return'     >> e${EMULATION_NAME}.c
 130 sed $sc ldscripts/${EMULATION_NAME}.xbn                >> e${EMULATION_NAME}.c
 131 echo '  ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
 132 sed $sc ldscripts/${EMULATION_NAME}.xn                 >> e${EMULATION_NAME}.c
 133 echo '  ; else return'                                 >> e${EMULATION_NAME}.c
 134 sed $sc ldscripts/${EMULATION_NAME}.x                  >> e${EMULATION_NAME}.c
 135 echo '; }'                                             >> e${EMULATION_NAME}.c
 136
 137 else
 138 # Scripts read from the filesystem.
 139
 140 cat >>e${EMULATION_NAME}.c <<EOF
 141 {
 142   *isfile = 1;
 143
 144   if (link_info.relocatable && config.build_constructors)
 145     return "ldscripts/${EMULATION_NAME}.xu";
 146   else if (link_info.relocatable)
 147     return "ldscripts/${EMULATION_NAME}.xr";
 148   else if (!config.text_read_only)
 149     return "ldscripts/${EMULATION_NAME}.xbn";
 150   else if (!config.magic_demand_paged)
 151     return "ldscripts/${EMULATION_NAME}.xn";
 152   else
 153     return "ldscripts/${EMULATION_NAME}.x";
 154 }
 155 EOF
 156
 157 fi
 158
 159 cat >>e${EMULATION_NAME}.c <<EOF
 160
 161 struct ld_emulation_xfer_struct ld_gld960_emulation =
 162 {
 163   gld960_before_parse,
 164   syslib_default,
 165   hll_default,
 166   after_parse_default,
 167   after_open_default,
 168   after_allocation_default,
 169   gld960_set_output_arch,
 170   gld960_choose_target,
 171   before_allocation_default,
 172   gld960_get_script,
 173   "960",
 174   "",
 175   NULL, /* finish */
 176   NULL, /* create output section statements */
 177   NULL, /* open dynamic archive */
 178   NULL, /* place orphan */
 179   NULL, /* set symbols */
 180   NULL, /* parse args */
 181   NULL, /* add_options */
 182   NULL, /* handle_option */
 183   NULL, /* unrecognized file */
 184   NULL, /* list options */
 185   NULL, /* recognized file */
 186   NULL, /* find_potential_libraries */
 187   NULL  /* new_vers_pattern */
 188 };
 189 EOF