gold/configure.tgt

   1 # configure.tgt -- target configuration for gold  -*- sh -*-
   2
   3 # Copyright 2006, 2007, 2008, 2009 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 ${targ}, which is a
  29 # canonicalized GNU configuration triplet.  It sets the following
  30 # shell variables:
  31
  32 # targ_obj               object file to include in the link, with no extension
  33 # targ_extra_obj         extra object file to include
  34 # targ_machine           ELF machine code for this target
  35 # targ_size              size of this target--32 or 64
  36 # targ_extra_size        extra targ_size setting for the target
  37 # targ_big_endian        whether the target is big-endian--true or false
  38 # targ_extra_big_endian  extra targ_big_endian setting for the target
  39 # targ_osabi             EI_OSABI value
  40
  41 # If the target is not recognized targ_obj is set to "UNKNOWN".
  42
  43 targ_extra_obj=
  44 targ_machine=
  45 targ_size=
  46 targ_extra_size=
  47 targ_big_endian=
  48 targ_extra_big_endian=
  49 targ_osabi=ELFOSABI_NONE
  50 case "$targ" in
  51 i?86-*)
  52   targ_obj=i386
  53   targ_machine=EM_386
  54   targ_size=32
  55   targ_big_endian=false
  56   case "$targ" in
  57   i?86-*-freebsd*)
  58     targ_osabi=ELFOSABI_FREEBSD
  59     ;;
  60   esac
  61   ;;
  62 x86_64*)
  63   targ_obj=x86_64
  64   targ_extra_obj=i386
  65   targ_machine=EM_X86_64
  66   targ_size=64
  67   targ_extra_size=32
  68   targ_big_endian=false
  69   case "$targ" in
  70   x86_64-*-freebsd*)
  71     targ_osabi=ELFOSABI_FREEBSD
  72     ;;
  73   esac
  74   ;;
  75 sparc-*)
  76   targ_obj=sparc
  77   targ_machine=EM_SPARC
  78   targ_size=32
  79   targ_extra_size=64
  80   targ_big_endian=true
  81   targ_extra_big_endian=false
  82   ;;
  83 sparc64-*)
  84   targ_obj=sparc
  85   targ_machine=EM_SPARCV9
  86   targ_size=64
  87   targ_extra_size=32
  88   targ_big_endian=true
  89   targ_extra_big_endian=false
  90   ;;
  91 powerpc-*)
  92   targ_obj=powerpc
  93   targ_machine=EM_PPC
  94   targ_size=32
  95   targ_extra_size=64
  96   targ_big_endian=true
  97   targ_extra_big_endian=false
  98   ;;
  99 powerpc64-*)
 100   targ_obj=powerpc
 101   targ_machine=EM_PPC64
 102   targ_size=64
 103   targ_extra_size=32
 104   targ_big_endian=true
 105   targ_extra_big_endian=false
 106   ;;
 107 armeb*-*-*|armbe*-*-*)
 108  targ_obj=arm
 109  targ_extra_obj=arm-reloc-property
 110  targ_machine=EM_ARM
 111  targ_size=32
 112  targ_big_endian=true
 113  targ_extra_big_endian=false
 114  ;;
 115 arm*-*-*)
 116  targ_obj=arm
 117  targ_extra_obj=arm-reloc-property
 118  targ_machine=EM_ARM
 119  targ_size=32
 120  targ_big_endian=false
 121  targ_extra_big_endian=true
 122  ;;
 123 *)
 124   targ_obj=UNKNOWN
 125   ;;
 126 esac