ld/emultempl/gld960c.em

   1 # This shell script emits a C file. -*- C -*-
   2 # It does some substitutions.
   3 fragment <<EOF
   4 /* Copyright (C) 1991-2018 Free Software Foundation, Inc.
   5
   6    This file is part of the GNU Binutils.
   7
   8    This program 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 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program 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 this program; if not, write to the Free Software
  20    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  21    MA 02110-1301, USA.  */
  22
  23
  24 /* Emulate the Intel's port of gld.  */
  25
  26 #include "sysdep.h"
  27 #include "bfd.h"
  28 #include "libiberty.h"
  29 #include "safe-ctype.h"
  30 #include "bfdlink.h"
  31
  32 #include "ld.h"
  33 #include "ldmisc.h"
  34 #include "ldmain.h"
  35
  36 #include "ldexp.h"
  37 #include "ldlang.h"
  38 #include "ldfile.h"
  39 #include "ldemul.h"
  40
  41 static void gld960_before_parse (void)
  42 {
  43   char *env ;
  44   env =  getenv("G960LIB");
  45   if (env) {
  46     ldfile_add_library_path(env, FALSE);
  47   }
  48   env = getenv("G960BASE");
  49   if (env)
  50     ldfile_add_library_path (concat (env, "/lib", (const char *) NULL),
  51                              FALSE);
  52   ldfile_output_architecture = bfd_arch_i960;
  53 }
  54
  55 static void
  56 gld960_set_output_arch (void)
  57 {
  58   if (ldfile_output_machine_name != NULL
  59       && *ldfile_output_machine_name != '\0')
  60     {
  61       char *s, *s1;
  62
  63       s = concat ("i960:", ldfile_output_machine_name, (char *) NULL);
  64       for (s1 = s; *s1 != '\0'; s1++)
  65         *s1 = TOLOWER (*s1);
  66       ldfile_set_output_arch (s, bfd_arch_unknown);
  67       free (s);
  68     }
  69
  70   set_output_arch_default ();
  71 }
  72
  73 static char *
  74 gld960_choose_target (int argc ATTRIBUTE_UNUSED, char **argv ATTRIBUTE_UNUSED)
  75 {
  76   char *from_outside = getenv(TARGET_ENVIRON);
  77   output_filename = "b.out";
  78
  79   if (from_outside != (char *)NULL)
  80     return from_outside;
  81
  82   return "coff-Intel-little";
  83 }
  84
  85 static char *
  86 gld960_get_script (int *isfile)
  87 EOF
  88
  89 if test x"$COMPILE_IN" = xyes
  90 then
  91 # Scripts compiled in.
  92
  93 # sed commands to quote an ld script as a C string.
  94 sc="-f stringify.sed"
  95
  96 fragment <<EOF
  97 {
  98   *isfile = 0;
  99
 100   if (bfd_link_relocatable (&link_info) && config.build_constructors)
 101     return
 102 EOF
 103 sed $sc ldscripts/${EMULATION_NAME}.xu                 >> e${EMULATION_NAME}.c
 104 echo '  ; else if (bfd_link_relocatable (&link_info)) return' >> e${EMULATION_NAME}.c
 105 sed $sc ldscripts/${EMULATION_NAME}.xr                 >> e${EMULATION_NAME}.c
 106 echo '  ; else if (!config.text_read_only) return'     >> e${EMULATION_NAME}.c
 107 sed $sc ldscripts/${EMULATION_NAME}.xbn                >> e${EMULATION_NAME}.c
 108 echo '  ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
 109 sed $sc ldscripts/${EMULATION_NAME}.xn                 >> e${EMULATION_NAME}.c
 110 echo '  ; else return'                                 >> e${EMULATION_NAME}.c
 111 sed $sc ldscripts/${EMULATION_NAME}.x                  >> e${EMULATION_NAME}.c
 112 echo '; }'                                             >> e${EMULATION_NAME}.c
 113
 114 else
 115 # Scripts read from the filesystem.
 116
 117 fragment <<EOF
 118 {
 119   *isfile = 1;
 120
 121   if (bfd_link_relocatable (&link_info) && config.build_constructors)
 122     return "ldscripts/${EMULATION_NAME}.xu";
 123   else if (bfd_link_relocatable (&link_info))
 124     return "ldscripts/${EMULATION_NAME}.xr";
 125   else if (!config.text_read_only)
 126     return "ldscripts/${EMULATION_NAME}.xbn";
 127   else if (!config.magic_demand_paged)
 128     return "ldscripts/${EMULATION_NAME}.xn";
 129   else
 130     return "ldscripts/${EMULATION_NAME}.x";
 131 }
 132 EOF
 133
 134 fi
 135
 136 fragment <<EOF
 137
 138 struct ld_emulation_xfer_struct ld_gld960coff_emulation =
 139 {
 140   gld960_before_parse,
 141   syslib_default,
 142   hll_default,
 143   after_parse_default,
 144   after_open_default,
 145   after_check_relocs_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   NULL  /* extra_map_file_text */
 167 };
 168 EOF