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 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, 51 Franklin Street - Fifth Floor, Boston, MA
  22 02110-1301, USA.  */
  23
  24 /*
  25  * emulate the Intels port of  gld
  26  */
  27
  28
  29 #include "sysdep.h"
  30 #include "bfd.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 static void gld960_before_parse (void)
  45 {
  46   char *env ;
  47   env =  getenv("G960LIB");
  48   if (env) {
  49     ldfile_add_library_path(env, FALSE);
  50   }
  51   env = getenv("G960BASE");
  52   if (env)
  53     ldfile_add_library_path (concat (env, "/lib", (const char *) NULL),
  54                              FALSE);
  55   ldfile_output_architecture = bfd_arch_i960;
  56 }
  57
  58 static void
  59 gld960_set_output_arch (void)
  60 {
  61   if (ldfile_output_machine_name != NULL
  62       && *ldfile_output_machine_name != '\0')
  63     {
  64       char *s, *s1;
  65
  66       s = concat ("i960:", ldfile_output_machine_name, (char *) NULL);
  67       for (s1 = s; *s1 != '\0'; s1++)
  68         *s1 = TOLOWER (*s1);
  69       ldfile_set_output_arch (s, bfd_arch_unknown);
  70       free (s);
  71     }
  72
  73   set_output_arch_default ();
  74 }
  75
  76 static char *
  77 gld960_choose_target (int argc ATTRIBUTE_UNUSED, char **argv ATTRIBUTE_UNUSED)
  78 {
  79   char *from_outside = getenv(TARGET_ENVIRON);
  80   output_filename = "b.out";
  81
  82   if (from_outside != (char *)NULL)
  83     return from_outside;
  84
  85   return "coff-Intel-little";
  86 }
  87
  88 static char *
  89 gld960_get_script (int *isfile)
  90 EOF
  91
  92 if test -n "$COMPILE_IN"
  93 then
  94 # Scripts compiled in.
  95
  96 # sed commands to quote an ld script as a C string.
  97 sc="-f stringify.sed"
  98
  99 cat >>e${EMULATION_NAME}.c <<EOF
 100 {
 101   *isfile = 0;
 102
 103   if (link_info.relocatable && config.build_constructors)
 104     return
 105 EOF
 106 sed $sc ldscripts/${EMULATION_NAME}.xu                 >> e${EMULATION_NAME}.c
 107 echo '  ; else if (link_info.relocatable) return'     >> e${EMULATION_NAME}.c
 108 sed $sc ldscripts/${EMULATION_NAME}.xr                 >> e${EMULATION_NAME}.c
 109 echo '  ; else if (!config.text_read_only) return'     >> e${EMULATION_NAME}.c
 110 sed $sc ldscripts/${EMULATION_NAME}.xbn                >> e${EMULATION_NAME}.c
 111 echo '  ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
 112 sed $sc ldscripts/${EMULATION_NAME}.xn                 >> e${EMULATION_NAME}.c
 113 echo '  ; else return'                                 >> e${EMULATION_NAME}.c
 114 sed $sc ldscripts/${EMULATION_NAME}.x                  >> e${EMULATION_NAME}.c
 115 echo '; }'                                             >> e${EMULATION_NAME}.c
 116
 117 else
 118 # Scripts read from the filesystem.
 119
 120 cat >>e${EMULATION_NAME}.c <<EOF
 121 {
 122   *isfile = 1;
 123
 124   if (link_info.relocatable && config.build_constructors)
 125     return "ldscripts/${EMULATION_NAME}.xu";
 126   else if (link_info.relocatable)
 127     return "ldscripts/${EMULATION_NAME}.xr";
 128   else if (!config.text_read_only)
 129     return "ldscripts/${EMULATION_NAME}.xbn";
 130   else if (!config.magic_demand_paged)
 131     return "ldscripts/${EMULATION_NAME}.xn";
 132   else
 133     return "ldscripts/${EMULATION_NAME}.x";
 134 }
 135 EOF
 136
 137 fi
 138
 139 cat >>e${EMULATION_NAME}.c <<EOF
 140
 141 struct ld_emulation_xfer_struct ld_gld960coff_emulation =
 142 {
 143   gld960_before_parse,
 144   syslib_default,
 145   hll_default,
 146   after_parse_default,
 147   after_open_default,
 148   after_allocation_default,
 149   gld960_set_output_arch,
 150   gld960_choose_target,
 151   before_allocation_default,
 152   gld960_get_script,
 153   "960coff",
 154   "",
 155   finish_default,
 156   NULL, /* create output section statements */
 157   NULL, /* open dynamic archive */
 158   NULL, /* place orphan */
 159   NULL, /* set symbols */
 160   NULL, /* parse args */
 161   NULL, /* add_options */
 162   NULL, /* handle_option */
 163   NULL, /* unrecognized file */
 164   NULL, /* list options */
 165   NULL, /* recognized file */
 166   NULL, /* find_potential_libraries */
 167   NULL  /* new_vers_pattern */
 168 };
 169 EOF