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