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 ${EMULATION_NAME}
   7    Copyright (C) 1991, 93, 94, 95, 96, 99, 2000
   8    Free Software Foundation, Inc.
   9    Written by Steve Chamberlain steve@cygnus.com
  10
  11 This file is part of GLD, the Gnu Linker.
  12
  13 This program is free software; you can redistribute it and/or modify
  14 it under the terms of the GNU General Public License as published by
  15 the Free Software Foundation; either version 2 of the License, or
  16 (at your option) any later version.
  17
  18 This program is distributed in the hope that it will be useful,
  19 but WITHOUT ANY WARRANTY; without even the implied warranty of
  20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21 GNU General Public License for more details.
  22
  23 You should have received a copy of the GNU General Public License
  24 along with this program; if not, write to the Free Software
  25 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  26
  27 #define TARGET_IS_${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 static void
  46 gld${EMULATION_NAME}_before_parse()
  47 {
  48 #ifndef TARGET_                 /* I.e., if not generic.  */
  49   ldfile_set_output_arch ("`echo ${ARCH}`");
  50 #endif /* not TARGET_ */
  51 }
  52
  53 static char *
  54 gld${EMULATION_NAME}_get_script(isfile)
  55      int *isfile;
  56 EOF
  57
  58 if test -n "$COMPILE_IN"
  59 then
  60 # Scripts compiled in.
  61
  62 # sed commands to quote an ld script as a C string.
  63 sc="-f stringify.sed"
  64
  65 cat >>e${EMULATION_NAME}.c <<EOF
  66 {
  67   *isfile = 0;
  68
  69   if (link_info.relocateable == true && config.build_constructors == true)
  70     return
  71 EOF
  72 sed $sc ldscripts/${EMULATION_NAME}.xu                     >> e${EMULATION_NAME}.c
  73 echo '  ; else if (link_info.relocateable == true) return' >> e${EMULATION_NAME}.c
  74 sed $sc ldscripts/${EMULATION_NAME}.xr                     >> e${EMULATION_NAME}.c
  75 echo '  ; else if (!config.text_read_only) return'         >> e${EMULATION_NAME}.c
  76 sed $sc ldscripts/${EMULATION_NAME}.xbn                    >> e${EMULATION_NAME}.c
  77 echo '  ; else if (!config.magic_demand_paged) return'     >> e${EMULATION_NAME}.c
  78 sed $sc ldscripts/${EMULATION_NAME}.xn                     >> e${EMULATION_NAME}.c
  79 echo '  ; else return'                                     >> e${EMULATION_NAME}.c
  80 sed $sc ldscripts/${EMULATION_NAME}.x                      >> e${EMULATION_NAME}.c
  81 echo '; }'                                                 >> e${EMULATION_NAME}.c
  82
  83 else
  84 # Scripts read from the filesystem.
  85
  86 cat >>e${EMULATION_NAME}.c <<EOF
  87 {
  88   *isfile = 1;
  89
  90   if (link_info.relocateable == true && config.build_constructors == true)
  91     return "ldscripts/${EMULATION_NAME}.xu";
  92   else if (link_info.relocateable == true)
  93     return "ldscripts/${EMULATION_NAME}.xr";
  94   else if (!config.text_read_only)
  95     return "ldscripts/${EMULATION_NAME}.xbn";
  96   else if (!config.magic_demand_paged)
  97     return "ldscripts/${EMULATION_NAME}.xn";
  98   else
  99     return "ldscripts/${EMULATION_NAME}.x";
 100 }
 101 EOF
 102
 103 fi
 104
 105 cat >>e${EMULATION_NAME}.c <<EOF
 106
 107 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
 108 {
 109   gld${EMULATION_NAME}_before_parse,
 110   syslib_default,
 111   hll_default,
 112   after_parse_default,
 113   after_open_default,
 114   after_allocation_default,
 115   set_output_arch_default,
 116   ldemul_default_target,
 117   before_allocation_default,
 118   gld${EMULATION_NAME}_get_script,
 119   "${EMULATION_NAME}",
 120   "${OUTPUT_FORMAT}",
 121   NULL, /* finish */
 122   NULL, /* create output section statements */
 123   NULL, /* open dynamic archive */
 124   NULL, /* place orphan */
 125   NULL, /* set symbols */
 126   NULL, /* parse args */
 127   NULL, /* unrecognized file */
 128   NULL, /* list options */
 129   NULL, /* recognized file */
 130   NULL  /* find_potential_libraries */
 131 };
 132 EOF