ld/emultempl/generic.em

   1 # This shell script emits a C file. -*- C -*-
   2 # It does some substitutions.
   3 cat >e${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 ${EMULATION_NAME}
   7    Copyright 1991, 1992, 1994, 1996, 1999, 2000, 2001, 2002, 2003, 2004
   8    Free Software Foundation, Inc.
   9    Written by Steve Chamberlain steve@cygnus.com
  10
  11 This file is part of GLD, the Gnu Linker.
  12
  13 This program is free software; you can redistribute it and/or modify
  14 it under the terms of the GNU General Public License as published by
  15 the Free Software Foundation; either version 2 of the License, or
  16 (at your option) any later version.
  17
  18 This program is distributed in the hope that it will be useful,
  19 but WITHOUT ANY WARRANTY; without even the implied warranty of
  20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21 GNU General Public License for more details.
  22
  23 You should have received a copy of the GNU General Public License
  24 along with this program; if not, write to the Free Software
  25 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
  26
  27 #define TARGET_IS_${EMULATION_NAME}
  28
  29 #include "bfd.h"
  30 #include "sysdep.h"
  31 #include "bfdlink.h"
  32
  33 #include "ld.h"
  34 #include "ldmain.h"
  35 #include "ldmisc.h"
  36
  37 #include "ldexp.h"
  38 #include "ldlang.h"
  39 #include "ldfile.h"
  40 #include "ldemul.h"
  41
  42 EOF
  43
  44 # Import any needed special functions and/or overrides.
  45 #
  46 if test -n "$EXTRA_EM_FILE" ; then
  47 . ${srcdir}/emultempl/${EXTRA_EM_FILE}.em
  48 fi
  49
  50 if test x"$LDEMUL_BEFORE_PARSE" != xgld"$EMULATION_NAME"_before_parse; then
  51 cat >>e${EMULATION_NAME}.c <<EOF
  52
  53 static void
  54 gld${EMULATION_NAME}_before_parse (void)
  55 {
  56 #ifndef TARGET_                 /* I.e., if not generic.  */
  57   ldfile_set_output_arch ("`echo ${ARCH}`", bfd_arch_unknown);
  58 #endif /* not TARGET_ */
  59 }
  60
  61 EOF
  62 fi
  63
  64 if test x"$LDEMUL_GET_SCRIPT" != xgld"$EMULATION_NAME"_get_script; then
  65 cat >>e${EMULATION_NAME}.c <<EOF
  66
  67 static char *
  68 gld${EMULATION_NAME}_get_script (int *isfile)
  69 EOF
  70
  71 if test -n "$COMPILE_IN"
  72 then
  73 # Scripts compiled in.
  74
  75 # sed commands to quote an ld script as a C string.
  76 sc="-f stringify.sed"
  77
  78 cat >>e${EMULATION_NAME}.c <<EOF
  79 {
  80   *isfile = 0;
  81
  82   if (link_info.relocatable && config.build_constructors)
  83     return
  84 EOF
  85 sed $sc ldscripts/${EMULATION_NAME}.xu                 >> e${EMULATION_NAME}.c
  86 echo '  ; else if (link_info.relocatable) return'     >> e${EMULATION_NAME}.c
  87 sed $sc ldscripts/${EMULATION_NAME}.xr                 >> e${EMULATION_NAME}.c
  88 echo '  ; else if (!config.text_read_only) return'     >> e${EMULATION_NAME}.c
  89 sed $sc ldscripts/${EMULATION_NAME}.xbn                >> e${EMULATION_NAME}.c
  90 echo '  ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
  91 sed $sc ldscripts/${EMULATION_NAME}.xn                 >> e${EMULATION_NAME}.c
  92 echo '  ; else return'                                 >> e${EMULATION_NAME}.c
  93 sed $sc ldscripts/${EMULATION_NAME}.x                  >> e${EMULATION_NAME}.c
  94 echo '; }'                                             >> e${EMULATION_NAME}.c
  95
  96 else
  97 # Scripts read from the filesystem.
  98
  99 cat >>e${EMULATION_NAME}.c <<EOF
 100 {
 101   *isfile = 1;
 102
 103   if (link_info.relocatable && config.build_constructors)
 104     return "ldscripts/${EMULATION_NAME}.xu";
 105   else if (link_info.relocatable)
 106     return "ldscripts/${EMULATION_NAME}.xr";
 107   else if (!config.text_read_only)
 108     return "ldscripts/${EMULATION_NAME}.xbn";
 109   else if (!config.magic_demand_paged)
 110     return "ldscripts/${EMULATION_NAME}.xn";
 111   else
 112     return "ldscripts/${EMULATION_NAME}.x";
 113 }
 114 EOF
 115 fi
 116 fi
 117
 118 cat >>e${EMULATION_NAME}.c <<EOF
 119
 120 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
 121 {
 122   ${LDEMUL_BEFORE_PARSE-gld${EMULATION_NAME}_before_parse},
 123   ${LDEMUL_SYSLIB-syslib_default},
 124   ${LDEMUL_HLL-hll_default},
 125   ${LDEMUL_AFTER_PARSE-after_parse_default},
 126   ${LDEMUL_AFTER_OPEN-after_open_default},
 127   ${LDEMUL_AFTER_ALLOCATION-after_allocation_default},
 128   ${LDEMUL_SET_OUTPUT_ARCH-set_output_arch_default},
 129   ${LDEMUL_CHOOSE_TARGET-ldemul_default_target},
 130   ${LDEMUL_BEFORE_ALLOCATION-before_allocation_default},
 131   ${LDEMUL_GET_SCRIPT-gld${EMULATION_NAME}_get_script},
 132   "${EMULATION_NAME}",
 133   "${OUTPUT_FORMAT}",
 134   ${LDEMUL_FINISH-finish_default},
 135   ${LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS-NULL},
 136   ${LDEMUL_OPEN_DYNAMIC_ARCHIVE-NULL},
 137   ${LDEMUL_PLACE_ORPHAN-NULL},
 138   ${LDEMUL_SET_SYMBOLS-NULL},
 139   ${LDEMUL_PARSE_ARGS-NULL},
 140   NULL, /* add_options */
 141   NULL, /* handle_option */
 142   ${LDEMUL_UNRECOGNIZED_FILE-NULL},
 143   ${LDEMUL_LIST_OPTIONS-NULL},
 144   ${LDEMUL_RECOGNIZED_FILE-NULL},
 145   ${LDEMUL_FIND_POTENTIAL_LIBRARIES-NULL},
 146   ${LDEMUL_NEW_VERS_PATTERN-NULL}
 147 };
 148 EOF