config.gcc.svn-base

PSP用开发必装库GCC4

# GCC target-specific configuration file.
# Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
# Free Software Foundation, Inc.

#This file is part of GCC.

#GCC is free software; you can redistribute it and/or modify it under
#the terms of the GNU General Public License as published by the Free
#Software Foundation; either version 2, or (at your option) any later
#version.

#GCC is distributed in the hope that it will be useful, but WITHOUT
#ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
#FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
#for more details.

#You should have received a copy of the GNU General Public License
#along with GCC; see the file COPYING.  If not, write to the Free
#Software Foundation, 59 Temple Place - Suite 330, Boston, MA
#02111-1307, USA.

# This is the GCC target-specific configuration file
# where a configuration type is mapped to different system-specific
# definitions and files.  This is invoked by the autoconf-generated
# configure script.  Putting it in a separate shell file lets us skip
# running autoconf when modifying target-specific information.

# This file switches on the shell variable ${target}, and also uses the
# following shell variables:
#
#  with_*		Various variables as set by configure.
#
#  enable_threads	Either the name, yes or no depending on whether
#			threads support was requested.
#
#  default_use_cxa_atexit
#			"no" by default, can be set to "yes" if a target
#			wishes to use __cxa_atexit() by default if the
#			$enable___cxa_atexit variable is not set.
#
#  gas_flag		Either yes or no depending on whether GNU as was
#			requested.
#
#  gnu_ld_flag		Either yes or no depending on whether GNU ld was
#			requested.

# This file sets the following shell variables for use by the
# autoconf-generated configure script:
#
#  cpu_type		The name of the cpu, if different from the first
#			chunk of the canonical target name.
#
#  tm_defines		List of target macros to define for all compilations.
#
#  tm_file		A list of target macro files, if different from
#			"$cpu_type/$cpu_type.h". Usually it's constructed
#			per target in a way like this:
#			tm_file="${tm_file} dbxelf.h elfos.h svr4.h ${cpu_type.h}/elf.h"
#			Note that the preferred order is:
#			- specific target header "${cpu_type}/${cpu_type.h}"
#			- generic headers like dbxelf.h elfos.h, etc.
#			- specializing target headers like ${cpu_type.h}/elf.h
#			This helps to keep OS specific stuff out of the CPU
#			defining header ${cpu_type}/${cpu_type.h}.
#
#  tm_p_file		Location of file with declarations for functions
#			in $out_file.
#
#  out_file		The name of the machine description C support
#			file, if different from "$cpu_type/$cpu_type.c".
#
#  md_file		The name of the machine-description file, if
#			different from "$cpu_type/$cpu_type.md".
#
#  tmake_file		A list of machine-description-specific
#			makefile-fragments, if different from
#			"$cpu_type/t-$cpu_type".
#
#  extra_modes          The name of the file containing a list of extra
#                       machine modes, if necessary and different from
#                       "$cpu_type/$cpu_type-modes.def".
#
#  extra_objs		List of extra objects that should be linked into
#			the compiler proper (cc1, cc1obj, cc1plus)
#			depending on target.
#
#  extra_gcc_objs	List of extra objects that should be linked into
#			the compiler driver (gcc) depending on target.
#
#  extra_headers	List of used header files from the directory
#			config/${cpu_type}.
#
#  extra_passes		List of extra executables compiled for this target
#			machine, used for compiling from source to object.
#
#  extra_parts		List of extra object files that should be compiled
#			for this target machine.
#
#  extra_programs	Like extra_passes, but these are used when linking.
#
#  c_target_objs	List of extra target-dependent objects that be
#			linked into the C compiler only.
#
#  cxx_target_objs	List of extra target-dependent objects that be
#			linked into the C++ compiler only.
#
#  target_gtfiles       List of extra source files with type information.
#
#  xm_defines		List of macros to define when compiling for the
#			target machine.
#
#  xm_file		List of files to include when compiling for the
#			target machine.
#
#  use_collect2		Set to yes or no, depending on whether collect2
#			will be used.
#
#  target_cpu_default	Set to override the default target model.
#
#  gdb_needs_out_file_path
#			Set to yes if gdb needs a dir command with
#			`dirname $out_file`.
#
#  thread_file		Set to control which thread package to use.
#
#  gas			Set to yes or no depending on whether the target
#			system normally uses GNU as.
#
#  need_64bit_hwint	Set to yes if HOST_WIDE_INT must be 64 bits wide
#			for this target.  This is true iff this target
#			supports "long" or "wchar_t" wider than 32 bits.
#
#  configure_default_options
#			Set to an initializer for configure_default_options
#			in configargs.h, based on --with-cpu et cetera.
#
#  use_fixproto		Set to "yes" if fixproto should be run normally,
#			"no" if fixproto should never be run.

# The following variables are used in each case-construct to build up the
# outgoing variables:
#
#  gnu_ld		Set to yes or no depending on whether the target
#			system normally uses GNU ld.

out_file=
tmake_file=
extra_headers=
extra_passes=
extra_parts=
extra_programs=
extra_objs=
extra_gcc_objs=
c_target_objs=
cxx_target_objs=
tm_defines=
xm_defines=
# Set this to force installation and use of collect2.
use_collect2=
# Set this to override the default target model.
target_cpu_default=
# Set this if gdb needs a dir command with `dirname $out_file`
gdb_needs_out_file_path=
# Set this to control which thread package will be used.
thread_file=
# Reinitialize these from the flag values every loop pass, since some
# configure entries modify them.
gas="$gas_flag"
gnu_ld="$gnu_ld_flag"
default_use_cxa_atexit=no
target_gtfiles=
need_64bit_hwint=

# Default to not using fixproto.  Targets which need fixproto should
# specifically set this to 'yes'.
use_fixproto=no

# Don't carry these over build->host->target.  Please.
xm_file=
md_file=

# Obsolete configurations.
case ${target} in
   sparclite-*-coff*	\
 | sparclite-*-elf*	\
 | sparc86x-*-elf*	\
 | sparc-*-openbsd*	\
 | i860-*-sysv4*	\
 | ip2k-*-elf		\
 | ns32k-*-netbsdelf*	\
 | ns32k-*-netbsd*	\
 )
    if test "x$enable_obsolete" != xyes; then
      echo "*** Configuration ${target} is obsolete." >&2
      echo "*** Specify --enable-obsolete to build it anyway." >&2
      echo "*** Support will be REMOVED in the next major release of GCC," >&2
      echo "*** unless a maintainer comes forward." >&2
      exit 1
    fi;;
esac

# Unsupported targets list.  Do not put an entry in this list unless
# it would otherwise be caught by a more permissive pattern.  The list
# should be in alphabetical order.
case ${target} in
   alpha*-*-linux*libc1*		\
 | i[34567]86-sequent-sysv		\
 | i[34567]86-sequent-sysv[123]*	\
 | i[34567]86-go32-*			\
 | i[34567]86-*-go32*			\
 | m68k-*-linux*aout*			\
 | m68k-*-linux*libc1*			\
 | mips64orion*-*-rtems*		\
 | powerpc-*-linux*libc1*		\
 | sparc-*-linux*aout*			\
 | sparc-*-linux*libc1*			\
 | sparc-hal-solaris2*			\
 | thumb-*-*				\
 | *-*-linux*coff*			\
 | *-*-linux*oldld*			\
 | *-*-rtemsaout*			\
 | *-*-rtemscoff*			\
 | vax-*-vms*				\
 )
	echo "*** Configuration ${target} not supported" 1>&2
	exit 1
	;;
esac

# Set default cpu_type, tm_file, tm_p_file and xm_file so it can be
# updated in each machine entry.  Also set default extra_headers for some
# machines.
tm_p_file=
cpu_type=`echo ${target} | sed 's/-.*$//'`
cpu_is_64bit=
case ${target} in
alpha*-*-*)
	cpu_type=alpha
	need_64bit_hwint=yes
	;;
am33_2.0-*-linux*)
	cpu_type=mn10300
	;;
strongarm*-*-*)
	cpu_type=arm
	;;
arm*-*-*)
	cpu_type=arm
	extra_headers="mmintrin.h"
	;;
ep9312*-*-*)
	cpu_type=arm
	;;
xscale-*-*)
	cpu_type=arm
	extra_headers="mmintrin.h"
	;;
i[34567]86-*-*)
	cpu_type=i386
	extra_headers="mmintrin.h mm3dnow.h xmmintrin.h emmintrin.h pmmintrin.h"
	;;
x86_64-*-*)
	cpu_type=i386
	extra_headers="mmintrin.h mm3dnow.h xmmintrin.h emmintrin.h pmmintrin.h"
	need_64bit_hwint=yes
	;;
ia64-*-*)
	extra_headers=ia64intrin.h
	need_64bit_hwint=yes
	;;
hppa*-*-* | parisc*-*-*)
	cpu_type=pa
	;;
m32r*-*-*)
        cpu_type=m32r
        ;;
m680[012]0-*-*)
	cpu_type=m68k
	extra_headers=math-68881.h
	;;
m68k-*-*)
	extra_headers=math-68881.h
	;;
mips*-*-*)
	cpu_type=mips
	need_64bit_hwint=yes
	;;
powerpc*-*-*)
	cpu_type=rs6000
	extra_headers="ppc-asm.h altivec.h spe.h"
	need_64bit_hwint=yes
	case x$with_cpu in
	    xpowerpc64|xdefault64|x6[23]0|x970|xG5|xpower[345]|xrs64a)
		cpu_is_64bit=yes
		;;
	esac
	;;
rs6000*-*-*)
	need_64bit_hwint=yes
	;;
sparc64*-*-*)
	cpu_type=sparc
	need_64bit_hwint=yes
	;;
sparc*-*-*)
	cpu_type=sparc
	;;
s390*-*-*)
	need_64bit_hwint=yes
	;;
# Note the 'l'; we need to be able to match e.g. "shle" or "shl".
sh[123456789lbe]*-*-*)
	cpu_type=sh
	need_64bit_hwint=yes
	;;
tic4x-*-*)
        cpu_type=c4x
        ;;
esac

tm_file=${cpu_type}/${cpu_type}.h
if test -f ${srcdir}/config/${cpu_type}/${cpu_type}-protos.h
then
	tm_p_file=${cpu_type}/${cpu_type}-protos.h
fi
extra_modes=
if test -f ${srcdir}/config/${cpu_type}/${cpu_type}-modes.def
then
	extra_modes=${cpu_type}/${cpu_type}-modes.def
fi

case ${target} in
x86_64-*-*)
	tm_file="i386/biarch64.h ${tm_file}"
	;;
esac

# On a.out targets, we need to use collect2.
case ${target} in
*-*-*aout*)
	use_collect2=yes
	;;
esac

# Common parts for widely ported systems.
case ${target} in
*-*-darwin*)
  case ${target} in
    *-darwin1[0-9]*) tm_file="${tm_file} darwin8.h" ;;
    *-darwin[0-6]*) ;;
    *-darwin7*) tm_file="${tm_file} darwin7.h" ;;
    *) tm_file="${tm_file} darwin8.h" ;;
  esac
  tm_file="${tm_file} darwin.h"
  tm_p_file="${tm_p_file} darwin-protos.h"
  tmake_file="t-darwin t-slibgcc-darwin"
  target_gtfiles="\$(srcdir)/config/darwin.c"
  c_target_objs="darwin-c.o"
  cxx_target_objs="darwin-c.o"
  extra_parts="crt2.o"
  extra_objs="darwin.o"
  case ${enable_threads} in
    "" | yes | posix) thread_file='posix' ;;
  esac
  ;;
*-*-freebsd[12] | *-*-freebsd[12].* | *-*-freebsd*aout*)
  # This is the place-holder for the generic a.out configuration
  # of FreeBSD.  No actual configuration resides here since
  # there was only ever a bare-bones ix86 configuration for
  # a.out and it exists solely in the machine-specific section.
  # This place-holder must exist to avoid dropping into
  # the generic ELF configuration of FreeBSD (i.e. it must be
  # ordered before that section).
  ;;
*-*-freebsd*)
  # This is the generic ELF configuration of FreeBSD.  Later
  # machine-specific sections may refine and add to this
  # configuration.
  #
  # Due to tm_file entry ordering issues that vary between cpu
  # architectures, we only define fbsd_tm_file to allow the
  # machine-specific section to dictate the final order of all
  # entries of tm_file with the minor exception that components
  # of the tm_file set here will always be of the form:
  #
  # freebsd<version_number>.h [freebsd-<conf_option>.h ...] freebsd-spec.h freebsd.h
  #
  # The machine-specific section should not tamper with this
  # ordering but may order all other entries of tm_file as it
  # pleases around the provided core setting.
  gas=yes
  gnu_ld=yes
  extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o"
  case ${target} in
    *-*-freebsd3 | *-*-freebsd[3].*)
      tm_defines="${tm_defines} FBSD_MAJOR=3" ;;
    *-*-freebsd4 | *-*-freebsd[4].*)
      tm_defines="${tm_defines} FBSD_MAJOR=4" ;;
    *-*-freebsd5 | *-*-freebsd[5].*)
      tm_defines="${tm_defines} FBSD_MAJOR=5" ;;
    *-*-freebsd6 | *-*-freebsd[6].*)
      tm_defines="${tm_defines} FBSD_MAJOR=6" ;;
    *)
      echo 'Please update *-*-freebsd* in gcc/config.gcc'
      exit 1
      ;;
  esac
  tmake_file="t-slibgcc-elf-ver t-freebsd"
  case ${enable_threads} in
    no)
      fbsd_tm_file="${fbsd_tm_file} freebsd-nthr.h"
      ;;
    "" | yes | posix)
      thread_file='posix'