contrib/binutils/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 ${EMULATION_NAME}
   7    Copyright 1991, 1992, 1994, 1996, 2000, 2001
   8    Free Software Foundation, Inc.
   9    Written by Steve Chamberlain steve@cygnus.com
  10
  11 This file is part of GLD, the Gnu Linker.
  12
  13 This program is free software; you can redistribute it and/or modify
  14 it under the terms of the GNU General Public License as published by
  15 the Free Software Foundation; either version 2 of the License, or
  16 (at your option) any later version.
  17
  18 This program is distributed in the hope that it will be useful,
  19 but WITHOUT ANY WARRANTY; without even the implied warranty of
  20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21 GNU General Public License for more details.
  22
  23 You should have received a copy of the GNU General Public License
  24 along with this program; if not, write to the Free Software
  25 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  26
  27 #define TARGET_IS_${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 static void gld${EMULATION_NAME}_before_parse PARAMS ((void));
  43 static char *gld${EMULATION_NAME}_get_script PARAMS ((int *isfile));
  44
  45 EOF
  46
  47 # Import any needed special functions and/or overrides.
  48 #
  49 if test -n "$EXTRA_EM_FILE" ; then
  50 . ${srcdir}/emultempl/${EXTRA_EM_FILE}.em
  51 fi
  52
  53 if test x"$LDEMUL_BEFORE_PARSE" != xgld"$EMULATION_NAME"_before_parse; then
  54 cat >>e${EMULATION_NAME}.c <<EOF
  55
  56 static void
  57 gld${EMULATION_NAME}_before_parse()
  58 {
  59 #ifndef TARGET_                 /* I.e., if not generic.  */
  60   ldfile_set_output_arch ("`echo ${ARCH}`");
  61 #endif /* not TARGET_ */
  62 }
  63
  64 EOF
  65 fi
  66
  67 if test x"$LDEMUL_GET_SCRIPT" != xgld"$EMULATION_NAME"_get_script; then
  68 cat >>e${EMULATION_NAME}.c <<EOF
  69
  70 static char *
  71 gld${EMULATION_NAME}_get_script(isfile)
  72      int *isfile;
  73 EOF
  74
  75 if test -n "$COMPILE_IN"
  76 then
  77 # Scripts compiled in.
  78
  79 # sed commands to quote an ld script as a C string.
  80 sc="-f stringify.sed"
  81
  82 cat >>e${EMULATION_NAME}.c <<EOF
  83 {
  84   *isfile = 0;
  85
  86   if (link_info.relocateable == true && config.build_constructors == true)
  87     return
  88 EOF
  89 sed $sc ldscripts/${EMULATION_NAME}.xu                     >> e${EMULATION_NAME}.c
  90 echo '  ; else if (link_info.relocateable == true) return' >> e${EMULATION_NAME}.c
  91 sed $sc ldscripts/${EMULATION_NAME}.xr                     >> e${EMULATION_NAME}.c
  92 echo '  ; else if (!config.text_read_only) return'         >> e${EMULATION_NAME}.c
  93 sed $sc ldscripts/${EMULATION_NAME}.xbn                    >> e${EMULATION_NAME}.c
  94 echo '  ; else if (!config.magic_demand_paged) return'     >> e${EMULATION_NAME}.c
  95 sed $sc ldscripts/${EMULATION_NAME}.xn                     >> e${EMULATION_NAME}.c
  96 echo '  ; else return'                                     >> e${EMULATION_NAME}.c
  97 sed $sc ldscripts/${EMULATION_NAME}.x                      >> e${EMULATION_NAME}.c
  98 echo '; }'                                                 >> e${EMULATION_NAME}.c
  99
 100 else
 101 # Scripts read from the filesystem.
 102
 103 cat >>e${EMULATION_NAME}.c <<EOF
 104 {
 105   *isfile = 1;
 106
 107   if (link_info.relocateable == true && config.build_constructors == true)
 108     return "ldscripts/${EMULATION_NAME}.xu";
 109   else if (link_info.relocateable == true)
 110     return "ldscripts/${EMULATION_NAME}.xr";
 111   else if (!config.text_read_only)
 112     return "ldscripts/${EMULATION_NAME}.xbn";
 113   else if (!config.magic_demand_paged)
 114     return "ldscripts/${EMULATION_NAME}.xn";
 115   else
 116     return "ldscripts/${EMULATION_NAME}.x";
 117 }
 118 EOF
 119 fi
 120 fi
 121
 122 cat >>e${EMULATION_NAME}.c <<EOF
 123
 124 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
 125 {
 126   ${LDEMUL_BEFORE_PARSE-gld${EMULATION_NAME}_before_parse},
 127   ${LDEMUL_SYSLIB-syslib_default},
 128   ${LDEMUL_HLL-hll_default},
 129   ${LDEMUL_AFTER_PARSE-after_parse_default},
 130   ${LDEMUL_AFTER_OPEN-after_open_default},
 131   ${LDEMUL_AFTER_ALLOCATION-after_allocation_default},
 132   ${LDEMUL_SET_OUTPUT_ARCH-set_output_arch_default},
 133   ${LDEMUL_CHOOSE_TARGET-ldemul_default_target},
 134   ${LDEMUL_BEFORE_ALLOCATION-before_allocation_default},
 135   ${LDEMUL_GET_SCRIPT-gld${EMULATION_NAME}_get_script},
 136   "${EMULATION_NAME}",
 137   "${OUTPUT_FORMAT}",
 138   ${LDEMUL_FINISH-NULL},
 139   ${LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS-NULL},
 140   ${LDEMUL_OPEN_DYNAMIC_ARCHIVE-NULL},
 141   ${LDEMUL_PLACE_ORPHAN-NULL},
 142   ${LDEMUL_SET_SYMBOLS-NULL},
 143   ${LDEMUL_PARSE_ARGS-NULL},
 144   ${LDEMUL_UNRECOGNIZED_FILE-NULL},
 145   ${LDEMUL_LIST_OPTIONS-NULL},
 146   ${LDEMUL_RECOGNIZED_FILE-NULL},
 147   ${LDEMUL_FIND_POTENTIAL_LIBRARIES-NULL}
 148 };
 149 EOF