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 ${EMULATION_NAME}
   7    Copyright (C) 1991, 93, 94, 95, 96, 1999 Free Software Foundation, Inc.
   8    Written by Steve Chamberlain steve@cygnus.com
   9
  10 This file is part of GLD, the Gnu Linker.
  11
  12 This program is free software; you can redistribute it and/or modify
  13 it under the terms of the GNU General Public License as published by
  14 the Free Software Foundation; either version 2 of the License, or
  15 (at your option) any later version.
  16
  17 This program is distributed in the hope that it will be useful,
  18 but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 GNU General Public License for more details.
  21
  22 You should have received a copy of the GNU General Public License
  23 along with this program; if not, write to the Free Software
  24 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  25
  26 #define TARGET_IS_${EMULATION_NAME}
  27
  28 #include "bfd.h"
  29 #include "sysdep.h"
  30 #include "bfdlink.h"
  31
  32 #include "ld.h"
  33 #include "ldmain.h"
  34 #include "ldemul.h"
  35 #include "ldfile.h"
  36 #include "ldmisc.h"
  37
  38 static void gld${EMULATION_NAME}_before_parse PARAMS ((void));
  39 static char *gld${EMULATION_NAME}_get_script PARAMS ((int *isfile));
  40
  41 static void
  42 gld${EMULATION_NAME}_before_parse()
  43 {
  44 #ifndef TARGET_                 /* I.e., if not generic.  */
  45   ldfile_set_output_arch ("`echo ${ARCH}`");
  46 #endif /* not TARGET_ */
  47 }
  48
  49 static char *
  50 gld${EMULATION_NAME}_get_script(isfile)
  51      int *isfile;
  52 EOF
  53
  54 if test -n "$COMPILE_IN"
  55 then
  56 # Scripts compiled in.
  57
  58 # sed commands to quote an ld script as a C string.
  59 sc="-f stringify.sed"
  60
  61 cat >>e${EMULATION_NAME}.c <<EOF
  62 {
  63   *isfile = 0;
  64
  65   if (link_info.relocateable == true && config.build_constructors == true)
  66     return
  67 EOF
  68 sed $sc ldscripts/${EMULATION_NAME}.xu                     >> e${EMULATION_NAME}.c
  69 echo '  ; else if (link_info.relocateable == true) return' >> e${EMULATION_NAME}.c
  70 sed $sc ldscripts/${EMULATION_NAME}.xr                     >> e${EMULATION_NAME}.c
  71 echo '  ; else if (!config.text_read_only) return'         >> e${EMULATION_NAME}.c
  72 sed $sc ldscripts/${EMULATION_NAME}.xbn                    >> e${EMULATION_NAME}.c
  73 echo '  ; else if (!config.magic_demand_paged) return'     >> e${EMULATION_NAME}.c
  74 sed $sc ldscripts/${EMULATION_NAME}.xn                     >> e${EMULATION_NAME}.c
  75 echo '  ; else return'                                     >> e${EMULATION_NAME}.c
  76 sed $sc ldscripts/${EMULATION_NAME}.x                      >> e${EMULATION_NAME}.c
  77 echo '; }'                                                 >> e${EMULATION_NAME}.c
  78
  79 else
  80 # Scripts read from the filesystem.
  81
  82 cat >>e${EMULATION_NAME}.c <<EOF
  83 {
  84   *isfile = 1;
  85
  86   if (link_info.relocateable == true && config.build_constructors == true)
  87     return "ldscripts/${EMULATION_NAME}.xu";
  88   else if (link_info.relocateable == true)
  89     return "ldscripts/${EMULATION_NAME}.xr";
  90   else if (!config.text_read_only)
  91     return "ldscripts/${EMULATION_NAME}.xbn";
  92   else if (!config.magic_demand_paged)
  93     return "ldscripts/${EMULATION_NAME}.xn";
  94   else
  95     return "ldscripts/${EMULATION_NAME}.x";
  96 }
  97 EOF
  98
  99 fi
 100
 101 cat >>e${EMULATION_NAME}.c <<EOF
 102
 103 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
 104 {
 105   gld${EMULATION_NAME}_before_parse,
 106   syslib_default,
 107   hll_default,
 108   after_parse_default,
 109   after_open_default,
 110   after_allocation_default,
 111   set_output_arch_default,
 112   ldemul_default_target,
 113   before_allocation_default,
 114   gld${EMULATION_NAME}_get_script,
 115   "${EMULATION_NAME}",
 116   "${OUTPUT_FORMAT}",
 117   NULL, /* finish */
 118   NULL, /* create output section statements */
 119   NULL, /* open dynamic archive */
 120   NULL, /* place orphan */
 121   NULL, /* set symbols */
 122   NULL, /* parse args */
 123   NULL, /* unrecognized file */
 124   NULL, /* list options */
 125   NULL  /* recognized file */
 126 };
 127 EOF