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, 99, 2000 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 "ldmisc.h"
  34 #include "ldmain.h"
  35
  36 #include "ldexp.h"
  37 #include "ldlang.h"
  38 #include "ldfile.h"
  39 #include "ldemul.h"
  40
  41 #ifdef GNU960
  42
  43 static void
  44 gld960_before_parse()
  45 {
  46   static char *env_variables[] = { "G960LIB", "G960BASE", 0 };
  47   char **p;
  48   char *env ;
  49
  50   for ( p = env_variables; *p; p++ ){
  51     env =  (char *) getenv(*p);
  52     if (env) {
  53       ldfile_add_library_path (concat (env,
  54                                        "/lib/libbout",
  55                                        (const char *) NULL),
  56                                false);
  57     }
  58   }
  59   ldfile_output_architecture = bfd_arch_i960;
  60 }
  61
  62 #else   /* not GNU960 */
  63
  64 static void gld960_before_parse()
  65 {
  66   char *env ;
  67   env =  getenv("G960LIB");
  68   if (env) {
  69     ldfile_add_library_path(env, false);
  70   }
  71   env = getenv("G960BASE");
  72   if (env)
  73     ldfile_add_library_path (concat (env, "/lib", (const char *) NULL), false);
  74   ldfile_output_architecture = bfd_arch_i960;
  75 }
  76
  77 #endif  /* GNU960 */
  78
  79
  80 static void
  81 gld960_set_output_arch()
  82 {
  83   bfd_set_arch_mach(output_bfd, ldfile_output_architecture, bfd_mach_i960_core);
  84 }
  85
  86 static char *
  87 gld960_choose_target()
  88 {
  89 #ifdef GNU960
  90
  91   output_filename = "b.out";
  92   return bfd_make_targ_name(BFD_BOUT_FORMAT, 0);
  93
  94 #else
  95
  96   char *from_outside = getenv(TARGET_ENVIRON);
  97   output_filename = "b.out";
  98
  99   if (from_outside != (char *)NULL)
 100     return from_outside;
 101
 102   return "b.out.little";
 103
 104 #endif
 105 }
 106
 107 static char *
 108 gld960_get_script(isfile)
 109      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.relocateable == true && config.build_constructors == true)
 124     return
 125 EOF
 126 sed $sc ldscripts/${EMULATION_NAME}.xu                     >> e${EMULATION_NAME}.c
 127 echo '  ; else if (link_info.relocateable == true) return' >> e${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${EMULATION_NAME}.c <<EOF
 141 {
 142   *isfile = 1;
 143
 144   if (link_info.relocateable == true && config.build_constructors == true)
 145     return "ldscripts/${EMULATION_NAME}.xu";
 146   else if (link_info.relocateable == true)
 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, /* unrecognized file */
 182   NULL, /* list options */
 183   NULL, /* recognized file */
 184   NULL  /* find_potential_libraries */
 185 };
 186 EOF