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
   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 static void gld960_before_parse PARAMS ((void));
  43 static char *gld960_choose_target PARAMS ((void));
  44 static void gld960_set_output_arch PARAMS ((void));
  45 static char *gld960_get_script PARAMS ((int *));
  46
  47 #ifdef GNU960
  48
  49 static void
  50 gld960_before_parse()
  51 {
  52   static char *env_variables[] = { "G960LIB", "G960BASE", 0 };
  53   char **p;
  54   char *env ;
  55
  56   for ( p = env_variables; *p; p++ ){
  57     env =  (char *) getenv(*p);
  58     if (env) {
  59       ldfile_add_library_path (concat (env,
  60                                        "/lib/libbout",
  61                                        (const char *) NULL),
  62                                false);
  63     }
  64   }
  65   ldfile_output_architecture = bfd_arch_i960;
  66 }
  67
  68 #else   /* not GNU960 */
  69
  70 static void gld960_before_parse()
  71 {
  72   char *env ;
  73   env =  getenv("G960LIB");
  74   if (env) {
  75     ldfile_add_library_path(env, false);
  76   }
  77   env = getenv("G960BASE");
  78   if (env)
  79     ldfile_add_library_path (concat (env, "/lib", (const char *) NULL), false);
  80   ldfile_output_architecture = bfd_arch_i960;
  81 }
  82
  83 #endif  /* GNU960 */
  84
  85
  86 static void
  87 gld960_set_output_arch()
  88 {
  89   bfd_set_arch_mach(output_bfd, ldfile_output_architecture, bfd_mach_i960_core);
  90 }
  91
  92 static char *
  93 gld960_choose_target()
  94 {
  95 #ifdef GNU960
  96
  97   output_filename = "b.out";
  98   return bfd_make_targ_name(BFD_BOUT_FORMAT, 0);
  99
 100 #else
 101
 102   char *from_outside = getenv(TARGET_ENVIRON);
 103   output_filename = "b.out";
 104
 105   if (from_outside != (char *)NULL)
 106     return from_outside;
 107
 108   return "b.out.little";
 109
 110 #endif
 111 }
 112
 113 static char *
 114 gld960_get_script(isfile)
 115      int *isfile;
 116 EOF
 117
 118 if test -n "$COMPILE_IN"
 119 then
 120 # Scripts compiled in.
 121
 122 # sed commands to quote an ld script as a C string.
 123 sc="-f stringify.sed"
 124
 125 cat >>e${EMULATION_NAME}.c <<EOF
 126 {
 127   *isfile = 0;
 128
 129   if (link_info.relocateable == true && config.build_constructors == true)
 130     return
 131 EOF
 132 sed $sc ldscripts/${EMULATION_NAME}.xu                     >> e${EMULATION_NAME}.c
 133 echo '  ; else if (link_info.relocateable == true) return' >> e${EMULATION_NAME}.c
 134 sed $sc ldscripts/${EMULATION_NAME}.xr                     >> e${EMULATION_NAME}.c
 135 echo '  ; else if (!config.text_read_only) return'         >> e${EMULATION_NAME}.c
 136 sed $sc ldscripts/${EMULATION_NAME}.xbn                    >> e${EMULATION_NAME}.c
 137 echo '  ; else if (!config.magic_demand_paged) return'     >> e${EMULATION_NAME}.c
 138 sed $sc ldscripts/${EMULATION_NAME}.xn                     >> e${EMULATION_NAME}.c
 139 echo '  ; else return'                                     >> e${EMULATION_NAME}.c
 140 sed $sc ldscripts/${EMULATION_NAME}.x                      >> e${EMULATION_NAME}.c
 141 echo '; }'                                                 >> e${EMULATION_NAME}.c
 142
 143 else
 144 # Scripts read from the filesystem.
 145
 146 cat >>e${EMULATION_NAME}.c <<EOF
 147 {
 148   *isfile = 1;
 149
 150   if (link_info.relocateable == true && config.build_constructors == true)
 151     return "ldscripts/${EMULATION_NAME}.xu";
 152   else if (link_info.relocateable == true)
 153     return "ldscripts/${EMULATION_NAME}.xr";
 154   else if (!config.text_read_only)
 155     return "ldscripts/${EMULATION_NAME}.xbn";
 156   else if (!config.magic_demand_paged)
 157     return "ldscripts/${EMULATION_NAME}.xn";
 158   else
 159     return "ldscripts/${EMULATION_NAME}.x";
 160 }
 161 EOF
 162
 163 fi
 164
 165 cat >>e${EMULATION_NAME}.c <<EOF
 166
 167 struct ld_emulation_xfer_struct ld_gld960_emulation =
 168 {
 169   gld960_before_parse,
 170   syslib_default,
 171   hll_default,
 172   after_parse_default,
 173   after_open_default,
 174   after_allocation_default,
 175   gld960_set_output_arch,
 176   gld960_choose_target,
 177   before_allocation_default,
 178   gld960_get_script,
 179   "960",
 180   "",
 181   NULL, /* finish */
 182   NULL, /* create output section statements */
 183   NULL, /* open dynamic archive */
 184   NULL, /* place orphan */
 185   NULL, /* set symbols */
 186   NULL, /* parse args */
 187   NULL, /* unrecognized file */
 188   NULL, /* list options */
 189   NULL, /* recognized file */
 190   NULL  /* find_potential_libraries */
 191 };
 192 EOF