gold/configure.tgt

   1 # configure.tgt -- target configuration for gold  -*- sh -*-
   2
   3 # Copyright 2006, 2007, 2008 Free Software Foundation, Inc.
   4 # Written by Ian Lance Taylor <iant@google.com>.
   5
   6 # This file is part of gold.
   7
   8 # This program is free software; you can redistribute it and/or modify
   9 # it under the terms of the GNU General Public License as published by
  10 # the Free Software Foundation; either version 3 of the License, or
  11 # (at your option) any later version.
  12
  13 # This program is distributed in the hope that it will be useful,
  14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 # GNU General Public License for more details.
  17
  18 # You should have received a copy of the GNU General Public License
  19 # along with this program; if not, write to the Free Software
  20 # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  21 # MA 02110-1301, USA.
  22
  23 # This script handles target configuration for gold.  This is shell
  24 # code invoked by the autoconf generated configure script.  Putting
  25 # this in a separate file lets us skip running autoconf when modifying
  26 # target specific information.
  27
  28 # This file switches on the shell variable ${targ}, which is a
  29 # canonicalized GNU configuration triplet.  It sets the following
  30 # shell variables:
  31
  32 # targ_obj               object file to include in the link, with no extension
  33 # targ_extra_obj         extra object file to include
  34 # targ_machine           ELF machine code for this target
  35 # targ_size              size of this target--32 or 64
  36 # targ_extra_size        extra targ_size setting for the target
  37 # targ_big_endian        whether the target is big-endian--true or false
  38 # targ_extra_big_endian  extra targ_big_endian setting for the target
  39
  40 # If the target is not recognized targ_obj is set to "UNKNOWN".
  41
  42 targ_extra_obj=
  43 targ_machine=
  44 targ_size=
  45 targ_extra_size=
  46 targ_big_endian=
  47 targ_extra_big_endian=
  48 case "$targ" in
  49 i?86-*)
  50   targ_obj=i386
  51   targ_machine=EM_386
  52   targ_size=32
  53   targ_big_endian=false
  54   ;;
  55 x86_64*)
  56   targ_obj=x86_64
  57   targ_extra_obj=i386
  58   targ_machine=EM_X86_64
  59   targ_size=64
  60   targ_extra_size=32
  61   targ_big_endian=false
  62   ;;
  63 sparc-*)
  64   targ_obj=sparc
  65   targ_machine=EM_SPARC
  66   targ_size=32
  67   targ_extra_size=64
  68   targ_big_endian=true
  69   targ_extra_big_endian=false
  70   ;;
  71 sparc64-*)
  72   targ_obj=sparc
  73   targ_machine=EM_SPARCV9
  74   targ_size=64
  75   targ_extra_size=32
  76   targ_big_endian=true
  77   targ_extra_big_endian=false
  78   ;;
  79 *)
  80   targ_obj=UNKNOWN
  81   ;;
  82 esac