tm.texi (LIBGCC2_UNWIND_ATTRIBUTE): Document.

2007-09-14  Sandra Loosemore  <sandra@codesourcery.com>
	    Nigel Stephens  <nigel@mips.com>

	gcc/
	* doc/tm.texi (LIBGCC2_UNWIND_ATTRIBUTE): Document.
	* unwind-generic.h (LIBGCC2_UNWIND_ATTRIBUTE): Define.
	(_Unwind_RaiseException): Add LIBGCC2_UNWIND_ATTRIBUTE to
	declaration.
	(_Unwind_ForcedUnwind): Likewise.
	(_Unwind_Resume): Likewise.
	(_Unwind_Resume_or_Rethrow): Likewise.
	(_Unwind_Backtrace): Likewise.
	(_Unwind_SjLj_RaiseException): Likewise.
	(_Unwind_SjLj_ForcedUnwind): Likewise.
	(_Unwind_SjLj_Resume): Likewise.
	(_Unwind_SjLj_Resume_or_Rethrow): Likewise.
	* unwind.inc (_Unwind_RaiseException): Add LIBGCC2_UNWIND_ATTRIBUTE
	to definition.
	(_Unwind_ForcedUnwind): Likewise.
	(_Unwind_Resume): Likewise.
	(_Unwind_Resume_or_Rethrow): Likewise.
	(_Unwind_Backtrace): Likewise.
	* unwind-compat.c (_Unwind_Backtrace): Likewise.
	(_Unwind_ForcedUnwind): Likewise.
	(_Unwind_RaiseException): Likewise.
	(_Unwind_Resume): Likewise.
	(_Unwind_Resume_or_Rethrow): Likewise.

	* config/mips/mips.h (LIBGCC2_UNWIND_ATTRIBUTE): Define to force
	nomips16 mode when IN_LIBGCC2 with hard float.

Co-Authored-By: Nigel Stephens <nigel@mips.com>

From-SVN: r128501