--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/config/soft-fp/t-softfp	Fri Jul 17 14:47:48 2009 +0900
@@ -0,0 +1,107 @@
+# Copyright (C) 2006, 2007 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 3, 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 COPYING3.  If not see
+# <http://www.gnu.org/licenses/>.
+
+# Targets using soft-fp should define the following variables:
+#
+# softfp_float_modes: a list of soft-float floating-point modes,
+#                     e.g. sf df
+# softfp_int_modes: a list of integer modes for which to define conversions,
+#                   e.g. si di
+# softfp_extensions: a list of extensions between floating-point modes,
+#                    e.g. sfdf
+# softfp_truncations: a list of truncations between floating-point modes,
+#                     e.g. dfsf
+# softfp_machine_header: the target sfp-machine.h file (relative to config/),
+#                        e.g. rs6000/sfp-machine.h
+#
+# Extensions and truncations should include those where only one mode
+# is a soft-float mode; for example, sftf where sf is hard-float and
+# tf is soft-float.
+#
+# If the libgcc2.c functions should not be replaced, also define:
+#
+# softfp_exclude_libgcc2 := y
+#
+# Avoiding replacing the libgcc2.c functions is a temporary measure
+# for targets with both hard-float and soft-float multilibs, since
+# these variables apply for all multilibs.  With toplevel libgcc,
+# soft-fp can be used conditionally on the multilib instead.
+#
+# If the code should not be compiled at all for some multilibs, define:
+#
+# softfp_wrap_start: text to put at the start of wrapper source files,
+#                    output with echo
+#                    e.g. '#ifndef __powerpc64__'
+# softfp_wrap_end: text to put at the end of wrapper source files,
+#                  e.g. '#endif'
+#
+# This is another temporary measure.
+
+softfp_float_funcs = add$(m)3 div$(m)3 eq$(m)2 ge$(m)2 le$(m)2 mul$(m)3 \
+  neg$(m)2 sub$(m)3 unord$(m)2
+softfp_floatint_funcs = fix$(m)$(i) fixuns$(m)$(i) \
+  float$(i)$(m) floatun$(i)$(m)
+
+softfp_func_list := \
+  $(foreach m,$(softfp_float_modes), \
+              $(softfp_float_funcs) \
+              $(foreach i,$(softfp_int_modes), \
+                          $(softfp_floatint_funcs))) \
+  $(foreach e,$(softfp_extensions),extend$(e)2) \
+  $(foreach t,$(softfp_truncations),trunc$(t)2)
+
+ifeq ($(softfp_exclude_libgcc2),y)
+# This list is taken from mklibgcc.in and doesn't presently allow for
+# 64-bit targets where si should become di and di should become ti.
+softfp_func_list := $(filter-out floatdidf floatdisf fixunsdfsi fixunssfsi \
+  fixunsdfdi fixdfdi fixunssfdi fixsfdi fixxfdi fixunsxfdi \
+  floatdixf fixunsxfsi fixtfdi fixunstfdi floatditf \
+  floatundidf floatundisf floatundixf floatunditf,$(softfp_func_list))
+endif
+
+ifeq ($(softfp_wrap_start),)
+softfp_file_list := \
+  $(addsuffix .c,$(addprefix $(srcdir)/config/soft-fp/,$(softfp_func_list)))
+else
+softfp_file_list := $(addsuffix .c,$(softfp_func_list))
+
+$(softfp_file_list):
+	echo $(softfp_wrap_start) > $@
+	echo '#include "config/soft-fp/$@"' >> $@
+	echo $(softfp_wrap_end) >> $@
+endif
+
+LIB2FUNCS_EXTRA += $(softfp_file_list)
+
+ifneq ($(softfp_exclude_libgcc2),y)
+# Functions in libgcc2.c are excluded for each soft-float mode (a
+# target may have both soft-float and hard-float modes), for the fixed
+# list of integer modes (si and di) for which libgcc2.c defines any
+# such functions.  Depending on the target, the si and di symbols may
+# in fact define di and ti functions.
+
+LIB2FUNCS_EXCLUDE += \
+  $(addprefix _,$(foreach m,$(softfp_float_modes), \
+                            $(foreach i,si di, \
+                                        $(softfp_floatint_funcs))))
+endif
+
+SFP_MACHINE := sfp-machine.h
+
+$(SFP_MACHINE): $(srcdir)/config/$(softfp_machine_header)
+	cp $(srcdir)/config/$(softfp_machine_header) $(SFP_MACHINE)