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, 2004,
   5    2005, 2007 Free Software Foundation, Inc.
   6
   7    This file is part of the GNU Binutils.
   8
   9    This program 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 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program 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 this program; if not, write to the Free Software
  21    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  22    MA 02110-1301, USA.  */
  23
  24
  25 /* Emulate the Intel's port of gld.  */
  26
  27 #include "sysdep.h"
  28 #include "bfd.h"
  29 #include "libiberty.h"
  30 #include "safe-ctype.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 (void)
  43 {
  44   char *env ;
  45   env =  getenv("G960LIB");
  46   if (env) {
  47     ldfile_add_library_path(env, FALSE);
  48   }
  49   env = getenv("G960BASE");
  50   if (env)
  51     ldfile_add_library_path (concat (env, "/lib", (const char *) NULL),
  52                              FALSE);
  53   ldfile_output_architecture = bfd_arch_i960;
  54 }
  55
  56 static void
  57 gld960_set_output_arch (void)
  58 {
  59   if (ldfile_output_machine_name != NULL
  60       && *ldfile_output_machine_name != '\0')
  61     {
  62       char *s, *s1;
  63
  64       s = concat ("i960:", ldfile_output_machine_name, (char *) NULL);
  65       for (s1 = s; *s1 != '\0'; s1++)
  66         *s1 = TOLOWER (*s1);
  67       ldfile_set_output_arch (s, bfd_arch_unknown);
  68       free (s);
  69     }
  70
  71   set_output_arch_default ();
  72 }
  73
  74 static char *
  75 gld960_choose_target (int argc ATTRIBUTE_UNUSED, char **argv ATTRIBUTE_UNUSED)
  76 {
  77   char *from_outside = getenv(TARGET_ENVIRON);
  78   output_filename = "b.out";
  79
  80   if (from_outside != (char *)NULL)
  81     return from_outside;
  82
  83   return "coff-Intel-little";
  84 }
  85
  86 static char *
  87 gld960_get_script (int *isfile)
  88 EOF
  89
  90 if test -n "$COMPILE_IN"
  91 then
  92 # Scripts compiled in.
  93
  94 # sed commands to quote an ld script as a C string.
  95 sc="-f stringify.sed"
  96
  97 cat >>e${EMULATION_NAME}.c <<EOF
  98 {
  99   *isfile = 0;
 100
 101   if (link_info.relocatable && config.build_constructors)
 102     return
 103 EOF
 104 sed $sc ldscripts/${EMULATION_NAME}.xu                 >> e${EMULATION_NAME}.c
 105 echo '  ; else if (link_info.relocatable) return'     >> e${EMULATION_NAME}.c
 106 sed $sc ldscripts/${EMULATION_NAME}.xr                 >> e${EMULATION_NAME}.c
 107 echo '  ; else if (!config.text_read_only) return'     >> e${EMULATION_NAME}.c
 108 sed $sc ldscripts/${EMULATION_NAME}.xbn                >> e${EMULATION_NAME}.c
 109 echo '  ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
 110 sed $sc ldscripts/${EMULATION_NAME}.xn                 >> e${EMULATION_NAME}.c
 111 echo '  ; else return'                                 >> e${EMULATION_NAME}.c
 112 sed $sc ldscripts/${EMULATION_NAME}.x                  >> e${EMULATION_NAME}.c
 113 echo '; }'                                             >> e${EMULATION_NAME}.c
 114
 115 else
 116 # Scripts read from the filesystem.
 117
 118 cat >>e${EMULATION_NAME}.c <<EOF
 119 {
 120   *isfile = 1;
 121
 122   if (link_info.relocatable && config.build_constructors)
 123     return "ldscripts/${EMULATION_NAME}.xu";
 124   else if (link_info.relocatable)
 125     return "ldscripts/${EMULATION_NAME}.xr";
 126   else if (!config.text_read_only)
 127     return "ldscripts/${EMULATION_NAME}.xbn";
 128   else if (!config.magic_demand_paged)
 129     return "ldscripts/${EMULATION_NAME}.xn";
 130   else
 131     return "ldscripts/${EMULATION_NAME}.x";
 132 }
 133 EOF
 134
 135 fi
 136
 137 cat >>e${EMULATION_NAME}.c <<EOF
 138
 139 struct ld_emulation_xfer_struct ld_gld960coff_emulation =
 140 {
 141   gld960_before_parse,
 142   syslib_default,
 143   hll_default,
 144   after_parse_default,
 145   after_open_default,
 146   after_allocation_default,
 147   gld960_set_output_arch,
 148   gld960_choose_target,
 149   before_allocation_default,
 150   gld960_get_script,
 151   "960coff",
 152   "",
 153   finish_default,
 154   NULL, /* create output section statements */
 155   NULL, /* open dynamic archive */
 156   NULL, /* place orphan */
 157   NULL, /* set symbols */
 158   NULL, /* parse args */
 159   NULL, /* add_options */
 160   NULL, /* handle_option */
 161   NULL, /* unrecognized file */
 162   NULL, /* list options */
 163   NULL, /* recognized file */
 164   NULL, /* find_potential_libraries */
 165   NULL  /* new_vers_pattern */
 166 };
 167 EOF