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, 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 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 "bfd.h"
  30 #include "sysdep.h"
  31 #include "libiberty.h"
  32 #include "safe-ctype.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 (void)
  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 (void)
  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 (void)
  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         *s1 = TOLOWER (*s1);
  95       ldfile_set_output_arch (s);
  96       free (s);
  97     }
  98
  99   set_output_arch_default ();
 100 }
 101
 102 static char *
 103 gld960_choose_target (int argc ATTRIBUTE_UNUSED, char **argv ATTRIBUTE_UNUSED)
 104 {
 105 #ifdef GNU960
 106
 107   output_filename = "b.out";
 108   return bfd_make_targ_name(BFD_BOUT_FORMAT, 0);
 109
 110 #else
 111
 112   char *from_outside = getenv(TARGET_ENVIRON);
 113   output_filename = "b.out";
 114
 115   if (from_outside != (char *)NULL)
 116     return from_outside;
 117
 118   return "coff-Intel-little";
 119
 120 #endif
 121 }
 122
 123 static char *
 124 gld960_get_script (int *isfile)
 125 EOF
 126
 127 if test -n "$COMPILE_IN"
 128 then
 129 # Scripts compiled in.
 130
 131 # sed commands to quote an ld script as a C string.
 132 sc="-f stringify.sed"
 133
 134 cat >>e${EMULATION_NAME}.c <<EOF
 135 {
 136   *isfile = 0;
 137
 138   if (link_info.relocatable && config.build_constructors)
 139     return
 140 EOF
 141 sed $sc ldscripts/${EMULATION_NAME}.xu                 >> e${EMULATION_NAME}.c
 142 echo '  ; else if (link_info.relocatable) return'     >> e${EMULATION_NAME}.c
 143 sed $sc ldscripts/${EMULATION_NAME}.xr                 >> e${EMULATION_NAME}.c
 144 echo '  ; else if (!config.text_read_only) return'     >> e${EMULATION_NAME}.c
 145 sed $sc ldscripts/${EMULATION_NAME}.xbn                >> e${EMULATION_NAME}.c
 146 echo '  ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
 147 sed $sc ldscripts/${EMULATION_NAME}.xn                 >> e${EMULATION_NAME}.c
 148 echo '  ; else return'                                 >> e${EMULATION_NAME}.c
 149 sed $sc ldscripts/${EMULATION_NAME}.x                  >> e${EMULATION_NAME}.c
 150 echo '; }'                                             >> e${EMULATION_NAME}.c
 151
 152 else
 153 # Scripts read from the filesystem.
 154
 155 cat >>e${EMULATION_NAME}.c <<EOF
 156 {
 157   *isfile = 1;
 158
 159   if (link_info.relocatable && config.build_constructors)
 160     return "ldscripts/${EMULATION_NAME}.xu";
 161   else if (link_info.relocatable)
 162     return "ldscripts/${EMULATION_NAME}.xr";
 163   else if (!config.text_read_only)
 164     return "ldscripts/${EMULATION_NAME}.xbn";
 165   else if (!config.magic_demand_paged)
 166     return "ldscripts/${EMULATION_NAME}.xn";
 167   else
 168     return "ldscripts/${EMULATION_NAME}.x";
 169 }
 170 EOF
 171
 172 fi
 173
 174 cat >>e${EMULATION_NAME}.c <<EOF
 175
 176 struct ld_emulation_xfer_struct ld_gld960coff_emulation =
 177 {
 178   gld960_before_parse,
 179   syslib_default,
 180   hll_default,
 181   after_parse_default,
 182   after_open_default,
 183   after_allocation_default,
 184   gld960_set_output_arch,
 185   gld960_choose_target,
 186   before_allocation_default,
 187   gld960_get_script,
 188   "960coff",
 189   "",
 190   NULL, /* finish */
 191   NULL, /* create output section statements */
 192   NULL, /* open dynamic archive */
 193   NULL, /* place orphan */
 194   NULL, /* set symbols */
 195   NULL, /* parse args */
 196   NULL, /* add_options */
 197   NULL, /* handle_option */
 198   NULL, /* unrecognized file */
 199   NULL, /* list options */
 200   NULL, /* recognized file */
 201   NULL, /* find_potential_libraries */
 202   NULL  /* new_vers_pattern */
 203 };
 204 EOF