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 (C) 1991, 1993 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 <ctype.h>
  28 #include "bfd.h"
  29 #include "sysdep.h"
  30 #include "libiberty.h"
  31 #include "bfdlink.h"
  32
  33 #include "ld.h"
  34 #include "ldemul.h"
  35 #include "ldfile.h"
  36 #include "ldmisc.h"
  37 #include "ldmain.h"
  38
  39 #ifdef GNU960
  40
  41 static void
  42 gld960_before_parse()
  43 {
  44   static char *env_variables[] = { "G960LIB", "G960BASE", 0 };
  45   char **p;
  46   char *env ;
  47
  48   for ( p = env_variables; *p; p++ ){
  49     env =  (char *) getenv(*p);
  50     if (env) {
  51       ldfile_add_library_path (concat (env,
  52                                        "/lib/libcoff",
  53                                        (const char *) NULL),
  54                                false);
  55     }
  56   }
  57   ldfile_output_architecture = bfd_arch_i960;
  58 }
  59
  60 #else   /* not GNU960 */
  61
  62 static void gld960_before_parse()
  63 {
  64   char *env ;
  65   env =  getenv("G960LIB");
  66   if (env) {
  67     ldfile_add_library_path(env, false);
  68   }
  69   env = getenv("G960BASE");
  70   if (env)
  71     ldfile_add_library_path (concat (env, "/lib", (const char *) NULL),
  72                              false);
  73   ldfile_output_architecture = bfd_arch_i960;
  74 }
  75
  76 #endif  /* GNU960 */
  77
  78
  79 static void
  80 gld960_set_output_arch()
  81 {
  82   if (ldfile_output_machine_name != NULL
  83       && *ldfile_output_machine_name != '\0')
  84     {
  85       char *s, *s1;
  86
  87       s = concat ("i960:", ldfile_output_machine_name, (char *) NULL);
  88       for (s1 = s; *s1 != '\0'; s1++)
  89         if (isupper ((unsigned char) *s1))
  90           *s1 = tolower ((unsigned char) *s1);
  91       ldfile_set_output_arch (s);
  92       free (s);
  93     }
  94
  95   set_output_arch_default ();
  96 }
  97
  98 static char *
  99 gld960_choose_target()
 100 {
 101 #ifdef GNU960
 102
 103   output_filename = "b.out";
 104   return bfd_make_targ_name(BFD_BOUT_FORMAT, 0);
 105
 106 #else
 107
 108   char *from_outside = getenv(TARGET_ENVIRON);
 109   output_filename = "b.out";
 110
 111   if (from_outside != (char *)NULL)
 112     return from_outside;
 113
 114   return "coff-Intel-little";
 115
 116 #endif
 117 }
 118
 119 static char *
 120 gld960_get_script(isfile)
 121      int *isfile;
 122 EOF
 123
 124 if test -n "$COMPILE_IN"
 125 then
 126 # Scripts compiled in.
 127
 128 # sed commands to quote an ld script as a C string.
 129 sc='s/["\\]/\\&/g
 130 s/$/\\n\\/
 131 1s/^/"/
 132 $s/$/n"/
 133 '
 134
 135 cat >>e${EMULATION_NAME}.c <<EOF
 136 {
 137   *isfile = 0;
 138
 139   if (link_info.relocateable == true && config.build_constructors == true)
 140     return `sed "$sc" ldscripts/${EMULATION_NAME}.xu`;
 141   else if (link_info.relocateable == true)
 142     return `sed "$sc" ldscripts/${EMULATION_NAME}.xr`;
 143   else if (!config.text_read_only)
 144     return `sed "$sc" ldscripts/${EMULATION_NAME}.xbn`;
 145   else if (!config.magic_demand_paged)
 146     return `sed "$sc" ldscripts/${EMULATION_NAME}.xn`;
 147   else
 148     return `sed "$sc" ldscripts/${EMULATION_NAME}.x`;
 149 }
 150 EOF
 151
 152 else
 153 # Scripts read from the filesystem.
 154
 155 cat >>e${EMULATION_NAME}.c <<EOF
 156 {
 157   *isfile = 1;
 158
 159   if (link_info.relocateable == true && config.build_constructors == true)
 160     return "ldscripts/${EMULATION_NAME}.xu";
 161   else if (link_info.relocateable == true)
 162     return "ldscripts/${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 };
 191 EOF