ld/emultempl/gld960.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, 1992, 1994, 1999, 2000, 2001, 2002, 2003, 2005, 2007
   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
  21 the Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
  22
  23 /*
  24  * emulate the Intels port of  gld
  25  */
  26
  27
  28 #include "sysdep.h"
  29 #include "bfd.h"
  30 #include "libiberty.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), FALSE);
  52   ldfile_output_architecture = bfd_arch_i960;
  53 }
  54
  55 static void
  56 gld960_set_output_arch (void)
  57 {
  58   bfd_set_arch_mach(output_bfd, ldfile_output_architecture, bfd_mach_i960_core);
  59 }
  60
  61 static char *
  62 gld960_choose_target (int argc ATTRIBUTE_UNUSED, char **argv ATTRIBUTE_UNUSED)
  63 {
  64   char *from_outside = getenv(TARGET_ENVIRON);
  65   output_filename = "b.out";
  66
  67   if (from_outside != (char *)NULL)
  68     return from_outside;
  69
  70   return "b.out.little";
  71 }
  72
  73 static char *
  74 gld960_get_script (int *isfile)
  75 EOF
  76
  77 if test -n "$COMPILE_IN"
  78 then
  79 # Scripts compiled in.
  80
  81 # sed commands to quote an ld script as a C string.
  82 sc="-f stringify.sed"
  83
  84 cat >>e${EMULATION_NAME}.c <<EOF
  85 {
  86   *isfile = 0;
  87
  88   if (link_info.relocatable && config.build_constructors)
  89     return
  90 EOF
  91 sed $sc ldscripts/${EMULATION_NAME}.xu                 >> e${EMULATION_NAME}.c
  92 echo '  ; else if (link_info.relocatable) return'     >> e${EMULATION_NAME}.c
  93 sed $sc ldscripts/${EMULATION_NAME}.xr                 >> e${EMULATION_NAME}.c
  94 echo '  ; else if (!config.text_read_only) return'     >> e${EMULATION_NAME}.c
  95 sed $sc ldscripts/${EMULATION_NAME}.xbn                >> e${EMULATION_NAME}.c
  96 echo '  ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
  97 sed $sc ldscripts/${EMULATION_NAME}.xn                 >> e${EMULATION_NAME}.c
  98 echo '  ; else return'                                 >> e${EMULATION_NAME}.c
  99 sed $sc ldscripts/${EMULATION_NAME}.x                  >> e${EMULATION_NAME}.c
 100 echo '; }'                                             >> e${EMULATION_NAME}.c
 101
 102 else
 103 # Scripts read from the filesystem.
 104
 105 cat >>e${EMULATION_NAME}.c <<EOF
 106 {
 107   *isfile = 1;
 108
 109   if (link_info.relocatable && config.build_constructors)
 110     return "ldscripts/${EMULATION_NAME}.xu";
 111   else if (link_info.relocatable)
 112     return "ldscripts/${EMULATION_NAME}.xr";
 113   else if (!config.text_read_only)
 114     return "ldscripts/${EMULATION_NAME}.xbn";
 115   else if (!config.magic_demand_paged)
 116     return "ldscripts/${EMULATION_NAME}.xn";
 117   else
 118     return "ldscripts/${EMULATION_NAME}.x";
 119 }
 120 EOF
 121
 122 fi
 123
 124 cat >>e${EMULATION_NAME}.c <<EOF
 125
 126 struct ld_emulation_xfer_struct ld_gld960_emulation =
 127 {
 128   gld960_before_parse,
 129   syslib_default,
 130   hll_default,
 131   after_parse_default,
 132   after_open_default,
 133   after_allocation_default,
 134   gld960_set_output_arch,
 135   gld960_choose_target,
 136   before_allocation_default,
 137   gld960_get_script,
 138   "960",
 139   "",
 140   finish_default,
 141   NULL, /* create output section statements */
 142   NULL, /* open dynamic archive */
 143   NULL, /* place orphan */
 144   NULL, /* set symbols */
 145   NULL, /* parse args */
 146   NULL, /* add_options */
 147   NULL, /* handle_option */
 148   NULL, /* unrecognized file */
 149   NULL, /* list options */
 150   NULL, /* recognized file */
 151   NULL, /* find_potential_libraries */
 152   NULL  /* new_vers_pattern */
 153 };
 154 EOF