ld/emultempl/armelf.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 ${EMULATION_NAME}
   7    Copyright (C) 1991, 93, 96, 97, 1998 Free Software Foundation, Inc.
   8    Written by Steve Chamberlain steve@cygnus.com
   9
  10 This file is part of GLD, the Gnu Linker.
  11
  12 This program is free software; you can redistribute it and/or modify
  13 it under the terms of the GNU General Public License as published by
  14 the Free Software Foundation; either version 2 of the License, or
  15 (at your option) any later version.
  16
  17 This program is distributed in the hope that it will be useful,
  18 but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 GNU General Public License for more details.
  21
  22 You should have received a copy of the GNU General Public License
  23 along with this program; if not, write to the Free Software
  24 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  25
  26 #define TARGET_IS_${EMULATION_NAME}
  27
  28 #include "bfd.h"
  29 #include "sysdep.h"
  30 #include "bfdlink.h"
  31 #include "getopt.h"
  32
  33 #include "ld.h"
  34 #include "ldmain.h"
  35 #include "ldemul.h"
  36 #include "ldfile.h"
  37 #include "ldmisc.h"
  38
  39 #include "ldexp.h"
  40 #include "ldlang.h"
  41
  42 static void gld${EMULATION_NAME}_before_parse PARAMS ((void));
  43 static void gld${EMULATION_NAME}_before_allocation PARAMS ((void));
  44 static char *gld${EMULATION_NAME}_get_script PARAMS ((int *isfile));
  45
  46 static void
  47 gld${EMULATION_NAME}_before_parse ()
  48 {
  49 #ifndef TARGET_                 /* I.e., if not generic.  */
  50   ldfile_set_output_arch ("`echo ${ARCH}`");
  51 #endif /* not TARGET_ */
  52 }
  53
  54 /* This is called after the sections have been attached to output
  55    sections, but before any sizes or addresses have been set.  */
  56
  57 static void
  58 gld${EMULATION_NAME}_before_allocation ()
  59 {
  60   /* we should be able to set the size of the interworking stub section */
  61
  62   /* Here we rummage through the found bfds to collect glue information */
  63   /* FIXME: should this be based on a command line option? krk@cygnus.com */
  64   {
  65     LANG_FOR_EACH_INPUT_STATEMENT (is)
  66       {
  67         if (!bfd_elf32_arm_process_before_allocation (is->the_bfd, &link_info))
  68           {
  69             /* xgettext:c-format */
  70             einfo (_("Errors encountered processing file %s"), is->filename);
  71           }
  72       }
  73   }
  74
  75   /* We have seen it all. Allocate it, and carry on */
  76   bfd_elf32_arm_allocate_interworking_sections (& link_info);
  77 }
  78
  79 static void
  80 gld${EMULATION_NAME}_after_open ()
  81 {
  82
  83   LANG_FOR_EACH_INPUT_STATEMENT (is)
  84     {
  85       /* The interworking bfd must be the last one to be processed */
  86       if (!is->next)
  87          bfd_elf32_arm_get_bfd_for_interworking (is->the_bfd, & link_info);
  88     }
  89 }
  90
  91 static char *
  92 gld${EMULATION_NAME}_get_script (isfile)
  93      int *isfile;
  94 EOF
  95
  96 if test -n "$COMPILE_IN"
  97 then
  98 # Scripts compiled in.
  99
 100 # sed commands to quote an ld script as a C string.
 101 sc="-f ${srcdir}/emultempl/stringify.sed"
 102
 103 cat >>e${EMULATION_NAME}.c <<EOF
 104 {
 105   *isfile = 0;
 106
 107   if (link_info.relocateable == true && config.build_constructors == true)
 108     return
 109 EOF
 110 sed $sc ldscripts/${EMULATION_NAME}.xu                     >> e${EMULATION_NAME}.c
 111 echo '  ; else if (link_info.relocateable == true) return' >> e${EMULATION_NAME}.c
 112 sed $sc ldscripts/${EMULATION_NAME}.xr                     >> e${EMULATION_NAME}.c
 113 echo '  ; else if (!config.text_read_only) return'         >> e${EMULATION_NAME}.c
 114 sed $sc ldscripts/${EMULATION_NAME}.xbn                    >> e${EMULATION_NAME}.c
 115 echo '  ; else if (!config.magic_demand_paged) return'     >> e${EMULATION_NAME}.c
 116 sed $sc ldscripts/${EMULATION_NAME}.xn                     >> e${EMULATION_NAME}.c
 117 echo '  ; else return'                                     >> e${EMULATION_NAME}.c
 118 sed $sc ldscripts/${EMULATION_NAME}.x                      >> e${EMULATION_NAME}.c
 119 echo '; }'                                                 >> e${EMULATION_NAME}.c
 120
 121 else
 122 # Scripts read from the filesystem.
 123
 124 cat >>e${EMULATION_NAME}.c <<EOF
 125 {
 126   *isfile = 1;
 127
 128   if (link_info.relocateable == true && config.build_constructors == true)
 129     return "ldscripts/${EMULATION_NAME}.xu";
 130   else if (link_info.relocateable == true)
 131     return "ldscripts/${EMULATION_NAME}.xr";
 132   else if (!config.text_read_only)
 133     return "ldscripts/${EMULATION_NAME}.xbn";
 134   else if (!config.magic_demand_paged)
 135     return "ldscripts/${EMULATION_NAME}.xn";
 136   else
 137     return "ldscripts/${EMULATION_NAME}.x";
 138 }
 139 EOF
 140
 141 fi
 142
 143 cat >>e${EMULATION_NAME}.c <<EOF
 144
 145 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
 146 {
 147   gld${EMULATION_NAME}_before_parse,
 148   syslib_default,
 149   hll_default,
 150   after_parse_default,
 151   gld${EMULATION_NAME}_after_open,
 152   after_allocation_default,
 153   set_output_arch_default,
 154   ldemul_default_target,
 155   gld${EMULATION_NAME}_before_allocation,
 156   gld${EMULATION_NAME}_get_script,
 157   "${EMULATION_NAME}",
 158   "${OUTPUT_FORMAT}",
 159   NULL, /* finish */
 160   NULL, /* create output section statements */
 161   NULL, /* open dynamic archive */
 162   NULL, /* place orphan */
 163   NULL, /* set_symbols */
 164   NULL,
 165   NULL, /* unrecognised file */
 166   NULL
 167 };
 168 EOF