gcc/
2007-xx-xx  Nigel Stephens  <nigel@mips.com>
	    David Ung  <davidu@mips.com>
	    Thiemo Seufer  <ths@mips.com>
	    Chris Dearman  <chris@mips.com>
	    Richard Sandiford  <richard@codesourcery.com>

	* config.gcc (mips*-sde-elf*): New stanza.
	(mipsisa32-*-elf*, mipsisa32el-*-elf*, mipsisa32r2-*-elf*)
	(mipsisa32r2el-*-elf*, mipsisa64-*-elf*, mipsisa64el-*-elf*)
	(mipsisa64sb1-*-elf*, mipsisa64sb1el-*-elf*, mips-*-elf*)
	(mipsel-*-elf*, mips64-*-elf*, mips64el-*-elf*, mips64orion-*-elf*)
	(mips64orionel-*-elf*, mips*-*-rtems*, mips-wrs-windiss)
	(mipstx39-*-elf*, mipstx39el-*-elf*): Add mips/t-libgcc-mips16
	to tmake_file.
	* config/mips/sde.h: New file.
	* config/mips/t-libgcc-mips16: Likewise.
	* config/mips/t-sde: Likewise.
	* config/mips/linux.h (TARGET_OS_CPP_BUILTINS): Remove settings
	of _ABIN32, _ABI64, _ABIO32, _MIPS_SIM, _MIPS_SZLONG, _MIPS_SZPTR,
	_MIPS_FPSET and _MIPS_SZINT.
	* config/mips/iris.h (TARGET_OS_CPP_BUILTINS): Likewise.
	* config/mips/elfoabi.h (DRIVER_SELF_SPECS): Remove separate
	insertion of a default -mips option.  Use MIPS_32BIT_OPTION_SPEC.
	* config/mips/t-isa3264 (LIB1ASMSRC, LIB1ASMFUNCS): Delete.
	* config/mips/t-r3900 (LIB1ASMSRC, LIB1ASMFUNCS): Likewise.
	* config/mips/t-elf (LIB1ASMSRC, LIB1ASMFUNCS): Likewise.
	* config/mips/mips.h (TARGET_CPU_CPP_BUITINS): Define _ABIO32,
	_ABIN32, _ABI64, _ABIO64, _MIPS_SIM, _MIPS_SZINT, _MIPS_SZLONG,
	_MIPS_SZPTR and _MIPS_FPSET.
	(MIPS_ISA_LEVEL_SPEC): Inject the default -mips option if no
	architecture is specified.
	(MIPS_32BIT_OPTION_SPEC): New macro.

Co-Authored-By: Chris Dearman <chris@mips.com>
Co-Authored-By: David Ung <davidu@mips.com>
Co-Authored-By: Richard Sandiford <richard@codesourcery.com>
Co-Authored-By: Thiemo Seufer <ths@mips.com>

From-SVN: r127113