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
   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 static void gld960_before_parse PARAMS ((void));
  45 static void gld960_set_output_arch PARAMS ((void));
  46 static char *gld960_choose_target PARAMS ((void));
  47 static char *gld960_get_script PARAMS ((int *));
  48
  49 #ifdef GNU960
  50
  51 static void
  52 gld960_before_parse()
  53 {
  54   static char *env_variables[] = { "G960LIB", "G960BASE", 0 };
  55   char **p;
  56   char *env ;
  57
  58   for ( p = env_variables; *p; p++ ){
  59     env =  (char *) getenv(*p);
  60     if (env) {
  61       ldfile_add_library_path (concat (env,
  62                                        "/lib/libcoff",
  63                                        (const char *) NULL),
  64                                false);
  65     }
  66   }
  67   ldfile_output_architecture = bfd_arch_i960;
  68 }
  69
  70 #else   /* not GNU960 */
  71
  72 static void gld960_before_parse()
  73 {
  74   char *env ;
  75   env =  getenv("G960LIB");
  76   if (env) {
  77     ldfile_add_library_path(env, false);
  78   }
  79   env = getenv("G960BASE");
  80   if (env)
  81     ldfile_add_library_path (concat (env, "/lib", (const char *) NULL),
  82                              false);
  83   ldfile_output_architecture = bfd_arch_i960;
  84 }
  85
  86 #endif  /* GNU960 */
  87
  88
  89 static void
  90 gld960_set_output_arch()
  91 {
  92   if (ldfile_output_machine_name != NULL
  93       && *ldfile_output_machine_name != '\0')
  94     {
  95       char *s, *s1;
  96
  97       s = concat ("i960:", ldfile_output_machine_name, (char *) NULL);
  98       for (s1 = s; *s1 != '\0'; s1++)
  99         if (isupper ((unsigned char) *s1))
 100           *s1 = tolower ((unsigned char) *s1);
 101       ldfile_set_output_arch (s);
 102       free (s);
 103     }
 104
 105   set_output_arch_default ();
 106 }
 107
 108 static char *
 109 gld960_choose_target()
 110 {
 111 #ifdef GNU960
 112
 113   output_filename = "b.out";
 114   return bfd_make_targ_name(BFD_BOUT_FORMAT, 0);
 115
 116 #else
 117
 118   char *from_outside = getenv(TARGET_ENVIRON);
 119   output_filename = "b.out";
 120
 121   if (from_outside != (char *)NULL)
 122     return from_outside;
 123
 124   return "coff-Intel-little";
 125
 126 #endif
 127 }
 128
 129 static char *
 130 gld960_get_script(isfile)
 131      int *isfile;
 132 EOF
 133
 134 if test -n "$COMPILE_IN"
 135 then
 136 # Scripts compiled in.
 137
 138 # sed commands to quote an ld script as a C string.
 139 sc="-f stringify.sed"
 140
 141 cat >>e${EMULATION_NAME}.c <<EOF
 142 {
 143   *isfile = 0;
 144
 145   if (link_info.relocateable == true && config.build_constructors == true)
 146     return
 147 EOF
 148 sed $sc ldscripts/${EMULATION_NAME}.xu                     >> e${EMULATION_NAME}.c
 149 echo '  ; else if (link_info.relocateable == true) return' >> e${EMULATION_NAME}.c
 150 sed $sc ldscripts/${EMULATION_NAME}.xr                     >> e${EMULATION_NAME}.c
 151 echo '  ; else if (!config.text_read_only) return'         >> e${EMULATION_NAME}.c
 152 sed $sc ldscripts/${EMULATION_NAME}.xbn                    >> e${EMULATION_NAME}.c
 153 echo '  ; else if (!config.magic_demand_paged) return'     >> e${EMULATION_NAME}.c
 154 sed $sc ldscripts/${EMULATION_NAME}.xn                     >> e${EMULATION_NAME}.c
 155 echo '  ; else return'                                     >> e${EMULATION_NAME}.c
 156 sed $sc ldscripts/${EMULATION_NAME}.x                      >> e${EMULATION_NAME}.c
 157 echo '; }'                                                 >> e${EMULATION_NAME}.c
 158
 159 else
 160 # Scripts read from the filesystem.
 161
 162 cat >>e${EMULATION_NAME}.c <<EOF
 163 {
 164   *isfile = 1;
 165
 166   if (link_info.relocateable == true && config.build_constructors == true)
 167     return "ldscripts/${EMULATION_NAME}.xu";
 168   else if (link_info.relocateable == true)
 169     return "ldscripts/${EMULATION_NAME}.xr";
 170   else if (!config.text_read_only)
 171     return "ldscripts/${EMULATION_NAME}.xbn";
 172   else if (!config.magic_demand_paged)
 173     return "ldscripts/${EMULATION_NAME}.xn";
 174   else
 175     return "ldscripts/${EMULATION_NAME}.x";
 176 }
 177 EOF
 178
 179 fi
 180
 181 cat >>e${EMULATION_NAME}.c <<EOF
 182
 183 struct ld_emulation_xfer_struct ld_gld960coff_emulation =
 184 {
 185   gld960_before_parse,
 186   syslib_default,
 187   hll_default,
 188   after_parse_default,
 189   after_open_default,
 190   after_allocation_default,
 191   gld960_set_output_arch,
 192   gld960_choose_target,
 193   before_allocation_default,
 194   gld960_get_script,
 195   "960coff",
 196   "",
 197   NULL, /* finish */
 198   NULL, /* create output section statements */
 199   NULL, /* open dynamic archive */
 200   NULL, /* place orphan */
 201   NULL, /* set symbols */
 202   NULL, /* parse args */
 203   NULL, /* unrecognized file */
 204   NULL, /* list options */
 205   NULL, /* recognized file */
 206   NULL  /* find_potential_libraries */
 207 };
 208 EOF