ld/emultempl/gld960c.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, 1993, 1994, 1996, 1999, 2000
   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 the Free
  21 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  22 02111-1307, USA.  */
  23
  24 /*
  25  * emulate the Intels port of  gld
  26  */
  27
  28
  29 #include <ctype.h>
  30 #include "bfd.h"
  31 #include "sysdep.h"
  32 #include "libiberty.h"
  33 #include "bfdlink.h"
  34
  35 #include "ld.h"
  36 #include "ldmisc.h"
  37 #include "ldmain.h"
  38
  39 #include "ldexp.h"
  40 #include "ldlang.h"
  41 #include "ldfile.h"
  42 #include "ldemul.h"
  43
  44 #ifdef GNU960
  45
  46 static void
  47 gld960_before_parse()
  48 {
  49   static char *env_variables[] = { "G960LIB", "G960BASE", 0 };
  50   char **p;
  51   char *env ;
  52
  53   for ( p = env_variables; *p; p++ ){
  54     env =  (char *) getenv(*p);
  55     if (env) {
  56       ldfile_add_library_path (concat (env,
  57                                        "/lib/libcoff",
  58                                        (const char *) NULL),
  59                                false);
  60     }
  61   }
  62   ldfile_output_architecture = bfd_arch_i960;
  63 }
  64
  65 #else   /* not GNU960 */
  66
  67 static void gld960_before_parse()
  68 {
  69   char *env ;
  70   env =  getenv("G960LIB");
  71   if (env) {
  72     ldfile_add_library_path(env, false);
  73   }
  74   env = getenv("G960BASE");
  75   if (env)
  76     ldfile_add_library_path (concat (env, "/lib", (const char *) NULL),
  77                              false);
  78   ldfile_output_architecture = bfd_arch_i960;
  79 }
  80
  81 #endif  /* GNU960 */
  82
  83
  84 static void
  85 gld960_set_output_arch()
  86 {
  87   if (ldfile_output_machine_name != NULL
  88       && *ldfile_output_machine_name != '\0')
  89     {
  90       char *s, *s1;
  91
  92       s = concat ("i960:", ldfile_output_machine_name, (char *) NULL);
  93       for (s1 = s; *s1 != '\0'; s1++)
  94         if (isupper ((unsigned char) *s1))
  95           *s1 = tolower ((unsigned char) *s1);
  96       ldfile_set_output_arch (s);
  97       free (s);
  98     }
  99
 100   set_output_arch_default ();
 101 }
 102
 103 static char *
 104 gld960_choose_target()
 105 {
 106 #ifdef GNU960
 107
 108   output_filename = "b.out";
 109   return bfd_make_targ_name(BFD_BOUT_FORMAT, 0);
 110
 111 #else
 112
 113   char *from_outside = getenv(TARGET_ENVIRON);
 114   output_filename = "b.out";
 115
 116   if (from_outside != (char *)NULL)
 117     return from_outside;
 118
 119   return "coff-Intel-little";
 120
 121 #endif
 122 }
 123
 124 static char *
 125 gld960_get_script(isfile)
 126      int *isfile;
 127 EOF
 128
 129 if test -n "$COMPILE_IN"
 130 then
 131 # Scripts compiled in.
 132
 133 # sed commands to quote an ld script as a C string.
 134 sc="-f stringify.sed"
 135
 136 cat >>e${EMULATION_NAME}.c <<EOF
 137 {
 138   *isfile = 0;
 139
 140   if (link_info.relocateable == true && config.build_constructors == true)
 141     return
 142 EOF
 143 sed $sc ldscripts/${EMULATION_NAME}.xu                     >> e${EMULATION_NAME}.c
 144 echo '  ; else if (link_info.relocateable == true) return' >> e${EMULATION_NAME}.c
 145 sed $sc ldscripts/${EMULATION_NAME}.xr                     >> e${EMULATION_NAME}.c
 146 echo '  ; else if (!config.text_read_only) return'         >> e${EMULATION_NAME}.c
 147 sed $sc ldscripts/${EMULATION_NAME}.xbn                    >> e${EMULATION_NAME}.c
 148 echo '  ; else if (!config.magic_demand_paged) return'     >> e${EMULATION_NAME}.c
 149 sed $sc ldscripts/${EMULATION_NAME}.xn                     >> e${EMULATION_NAME}.c
 150 echo '  ; else return'                                     >> e${EMULATION_NAME}.c
 151 sed $sc ldscripts/${EMULATION_NAME}.x                      >> e${EMULATION_NAME}.c
 152 echo '; }'                                                 >> e${EMULATION_NAME}.c
 153
 154 else
 155 # Scripts read from the filesystem.
 156
 157 cat >>e${EMULATION_NAME}.c <<EOF
 158 {
 159   *isfile = 1;
 160
 161   if (link_info.relocateable == true && config.build_constructors == true)
 162     return "ldscripts/${EMULATION_NAME}.xu";
 163   else if (link_info.relocateable == true)
 164     return "ldscripts/${EMULATION_NAME}.xr";
 165   else if (!config.text_read_only)
 166     return "ldscripts/${EMULATION_NAME}.xbn";
 167   else if (!config.magic_demand_paged)
 168     return "ldscripts/${EMULATION_NAME}.xn";
 169   else
 170     return "ldscripts/${EMULATION_NAME}.x";
 171 }
 172 EOF
 173
 174 fi
 175
 176 cat >>e${EMULATION_NAME}.c <<EOF
 177
 178 struct ld_emulation_xfer_struct ld_gld960coff_emulation =
 179 {
 180   gld960_before_parse,
 181   syslib_default,
 182   hll_default,
 183   after_parse_default,
 184   after_open_default,
 185   after_allocation_default,
 186   gld960_set_output_arch,
 187   gld960_choose_target,
 188   before_allocation_default,
 189   gld960_get_script,
 190   "960coff",
 191   "",
 192   NULL, /* finish */
 193   NULL, /* create output section statements */
 194   NULL, /* open dynamic archive */
 195   NULL, /* place orphan */
 196   NULL, /* set symbols */
 197   NULL, /* parse args */
 198   NULL, /* unrecognized file */
 199   NULL, /* list options */
 200   NULL, /* recognized file */
 201   NULL  /* find_potential_libraries */
 202 };
 203 EOF