ld/emultempl/generic.em

   1 # This shell script emits a C file. -*- C -*-
   2 # It does some substitutions.
   3 fragment <<EOF
   4 /* This file is is generated by a shell script.  DO NOT EDIT! */
   5
   6 /* emulate the original gld for the given ${EMULATION_NAME}
   7    Copyright (C) 1991-2017 Free Software Foundation, Inc.
   8    Written by Steve Chamberlain steve@cygnus.com
   9
  10    This file is part of the GNU Binutils.
  11
  12    This program is free software; you can redistribute it and/or modify
  13    it under the terms of the GNU General Public License as published by
  14    the Free Software Foundation; either version 3 of the License, or
  15    (at your option) any later version.
  16
  17    This program is distributed in the hope that it will be useful,
  18    but WITHOUT ANY WARRANTY; without even the implied warranty of
  19    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20    GNU General Public License for more details.
  21
  22    You should have received a copy of the GNU General Public License
  23    along with this program; if not, write to the Free Software
  24    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  25    MA 02110-1301, USA.  */
  26
  27 #define TARGET_IS_${EMULATION_NAME}
  28
  29 #include "sysdep.h"
  30 #include "bfd.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   source_em ${srcdir}/emultempl/${EXTRA_EM_FILE}.em
  48 fi
  49
  50 if test x"$LDEMUL_BEFORE_PARSE" != xgld"$EMULATION_NAME"_before_parse; then
  51 fragment <<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 EOF
  60   # The MSP430 port *needs* linker relaxtion in order to cope with large
  61   # functions where conditional branches do not fit into a +/- 1024 byte range.
  62   case ${target} in
  63     msp430-*-* )
  64 fragment <<EOF
  65   if (!bfd_link_relocatable (&link_info))
  66     TARGET_ENABLE_RELAXATION;
  67 EOF
  68     ;;
  69   esac
  70 fragment <<EOF
  71 }
  72
  73 EOF
  74 fi
  75
  76 if test x"$LDEMUL_GET_SCRIPT" != xgld"$EMULATION_NAME"_get_script; then
  77 fragment <<EOF
  78
  79 static char *
  80 gld${EMULATION_NAME}_get_script (int *isfile)
  81 EOF
  82
  83 if test x"$COMPILE_IN" = xyes
  84 then
  85 # Scripts compiled in.
  86
  87 # sed commands to quote an ld script as a C string.
  88 sc="-f stringify.sed"
  89
  90 fragment <<EOF
  91 {
  92   *isfile = 0;
  93
  94   if (bfd_link_relocatable (&link_info) && config.build_constructors)
  95     return
  96 EOF
  97 sed $sc ldscripts/${EMULATION_NAME}.xu                 >> e${EMULATION_NAME}.c
  98 echo '  ; else if (bfd_link_relocatable (&link_info)) return' >> e${EMULATION_NAME}.c
  99 sed $sc ldscripts/${EMULATION_NAME}.xr                 >> e${EMULATION_NAME}.c
 100 echo '  ; else if (!config.text_read_only) return'     >> e${EMULATION_NAME}.c
 101 sed $sc ldscripts/${EMULATION_NAME}.xbn                >> e${EMULATION_NAME}.c
 102 echo '  ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
 103 sed $sc ldscripts/${EMULATION_NAME}.xn                 >> e${EMULATION_NAME}.c
 104 echo '  ; else return'                                 >> e${EMULATION_NAME}.c
 105 sed $sc ldscripts/${EMULATION_NAME}.x                  >> e${EMULATION_NAME}.c
 106 echo '; }'                                             >> e${EMULATION_NAME}.c
 107
 108 else
 109 # Scripts read from the filesystem.
 110
 111 fragment <<EOF
 112 {
 113   *isfile = 1;
 114
 115   if (bfd_link_relocatable (&link_info) && config.build_constructors)
 116     return "ldscripts/${EMULATION_NAME}.xu";
 117   else if (bfd_link_relocatable (&link_info))
 118     return "ldscripts/${EMULATION_NAME}.xr";
 119   else if (!config.text_read_only)
 120     return "ldscripts/${EMULATION_NAME}.xbn";
 121   else if (!config.magic_demand_paged)
 122     return "ldscripts/${EMULATION_NAME}.xn";
 123   else
 124     return "ldscripts/${EMULATION_NAME}.x";
 125 }
 126 EOF
 127 fi
 128 fi
 129
 130 fragment <<EOF
 131
 132 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
 133 {
 134   ${LDEMUL_BEFORE_PARSE-gld${EMULATION_NAME}_before_parse},
 135   ${LDEMUL_SYSLIB-syslib_default},
 136   ${LDEMUL_HLL-hll_default},
 137   ${LDEMUL_AFTER_PARSE-after_parse_default},
 138   ${LDEMUL_AFTER_OPEN-after_open_default},
 139   ${LDEMUL_AFTER_ALLOCATION-after_allocation_default},
 140   ${LDEMUL_SET_OUTPUT_ARCH-set_output_arch_default},
 141   ${LDEMUL_CHOOSE_TARGET-ldemul_default_target},
 142   ${LDEMUL_BEFORE_ALLOCATION-before_allocation_default},
 143   ${LDEMUL_GET_SCRIPT-gld${EMULATION_NAME}_get_script},
 144   "${EMULATION_NAME}",
 145   "${OUTPUT_FORMAT}",
 146   ${LDEMUL_FINISH-finish_default},
 147   ${LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS-NULL},
 148   ${LDEMUL_OPEN_DYNAMIC_ARCHIVE-NULL},
 149   ${LDEMUL_PLACE_ORPHAN-NULL},
 150   ${LDEMUL_SET_SYMBOLS-NULL},
 151   ${LDEMUL_PARSE_ARGS-NULL},
 152   ${LDEMUL_ADD_OPTIONS-NULL},
 153   ${LDEMUL_HANDLE_OPTION-NULL},
 154   ${LDEMUL_UNRECOGNIZED_FILE-NULL},
 155   ${LDEMUL_LIST_OPTIONS-NULL},
 156   ${LDEMUL_RECOGNIZED_FILE-NULL},
 157   ${LDEMUL_FIND_POTENTIAL_LIBRARIES-NULL},
 158   ${LDEMUL_NEW_VERS_PATTERN-NULL},
 159   ${LDEMUL_EXTRA_MAP_FILE_TEXT-NULL}
 160 };
 161 EOF