ld/emultempl/generic.em

   1 # This shell script emits a C file. -*- C -*-
   2 # It does some substitutions.
   3 cat >em_${EMULATION_NAME}.c <<EOF
   4 /* This file is is generated by a shell script.  DO NOT EDIT! */
   5
   6 /* emulate the original gld for the given ${EMULATION_NAME}
   7    Copyright (C) 1991 Free Software Foundation, Inc.
   8    Written by Steve Chamberlain steve@cygnus.com
   9
  10 This file is part of GLD, the Gnu Linker.
  11
  12 This program is free software; you can redistribute it and/or modify
  13 it under the terms of the GNU General Public License as published by
  14 the Free Software Foundation; either version 2 of the License, or
  15 (at your option) any later version.
  16
  17 This program is distributed in the hope that it will be useful,
  18 but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 GNU General Public License for more details.
  21
  22 You should have received a copy of the GNU General Public License
  23 along with this program; if not, write to the Free Software
  24 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
  25
  26 #define TARGET_IS_${EMULATION_NAME}
  27
  28 #include "bfd.h"
  29 #include "sysdep.h"
  30 #include "ld.h"
  31 #include "config.h"
  32 #include "ldemul.h"
  33 #include "ldfile.h"
  34 #include "ldmisc.h"
  35
  36 extern boolean lang_float_flag;
  37
  38 extern enum bfd_architecture ldfile_output_architecture;
  39 extern unsigned long ldfile_output_machine;
  40 extern char *ldfile_output_machine_name;
  41
  42 static void
  43 gld${EMULATION_NAME}_before_parse()
  44 {
  45 #ifndef TARGET_                 /* I.e., if not generic.  */
  46   ldfile_output_architecture = bfd_arch_${ARCH};
  47 #endif /* not TARGET_ */
  48 }
  49
  50 static char *
  51 gld${EMULATION_NAME}_get_script(isfile)
  52      int *isfile;
  53 EOF
  54
  55 if test "$DEFAULT_EMULATION" = "$EMULATION_NAME"
  56 then
  57 # Scripts compiled in.
  58
  59 # sed commands to quote an ld script as a C string.
  60 sc='s/["\\]/\\&/g
  61 s/$/\\n\\/
  62 1s/^/"{/
  63 $s/$/n}"/
  64 '
  65
  66 cat >>em_${EMULATION_NAME}.c <<EOF
  67 {
  68   extern ld_config_type config;
  69
  70   *isfile = 0;
  71
  72   if (config.relocateable_output == true && config.build_constructors == true)
  73     return `sed "$sc" ldscripts/${EMULATION_NAME}.xu`;
  74   else if (config.relocateable_output == true)
  75     return `sed "$sc" ldscripts/${EMULATION_NAME}.xr`;
  76   else if (!config.text_read_only)
  77     return `sed "$sc" ldscripts/${EMULATION_NAME}.xbn`;
  78   else if (!config.magic_demand_paged)
  79     return `sed "$sc" ldscripts/${EMULATION_NAME}.xn`;
  80   else
  81     return `sed "$sc" ldscripts/${EMULATION_NAME}.x`;
  82 }
  83 EOF
  84
  85 else
  86 # Scripts read from the filesystem.
  87
  88 cat >>em_${EMULATION_NAME}.c <<EOF
  89 {
  90   extern ld_config_type config;
  91
  92   *isfile = 1;
  93
  94   if (config.relocateable_output == true && config.build_constructors == true)
  95     return "ldscripts/${EMULATION_NAME}.xu";
  96   else if (config.relocateable_output == true)
  97     return "ldscripts/${EMULATION_NAME}.xr";
  98   else if (!config.text_read_only)
  99     return "ldscripts/${EMULATION_NAME}.xbn";
 100   else if (!config.magic_demand_paged)
 101     return "ldscripts/${EMULATION_NAME}.xn";
 102   else
 103     return "ldscripts/${EMULATION_NAME}.x";
 104 }
 105 EOF
 106
 107 fi
 108
 109 cat >>em_${EMULATION_NAME}.c <<EOF
 110
 111 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
 112 {
 113   gld${EMULATION_NAME}_before_parse,
 114   syslib_default,
 115   hll_default,
 116   after_parse_default,
 117   after_allocation_default,
 118   set_output_arch_default,
 119   ldemul_default_target,
 120   before_allocation_default,
 121   gld${EMULATION_NAME}_get_script,
 122   "${EMULATION_NAME}",
 123   "${OUTPUT_FORMAT}"
 124 };
 125 EOF