1# Makefile fragment for building LIBGCC for the Renesas RX target. 2# Copyright (C) 2008, 2009 Free Software Foundation, Inc. 3# Contributed by Red Hat. 4# 5# This file is part of GCC. 6# 7# GCC is free software; you can redistribute it and/or modify it 8# under the terms of the GNU General Public License as published 9# by the Free Software Foundation; either version 3, or (at your 10# option) any later version. 11# 12# GCC is distributed in the hope that it will be useful, but 13# WITHOUT ANY WARRANTY; without even the implied warranty of 14# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See 15# the GNU General Public License for more details. 16# 17# You should have received a copy of the GNU General Public 18# License along with GCC; see the file COPYING3. If not see 19# <http://www.gnu.org/licenses/>. 20 21 22# Add functions required by the RX ABI which are not part of 23# the normal libgcc sources: 24 25LIB2ADD = $(srcdir)/config/rx/rx-abi-functions.c 26 27 28# We need special handling of the floating point conversion 29# routines, to allow for the varying size of a double: 30 31FPBIT = fp-bit.c 32$(gcc_objdir)/fp-bit.c: $(gcc_srcdir)/config/fp-bit.c 33 echo '#define FLOAT' > $@ 34 echo '#ifndef __RX_64BIT_DOUBLES__' >> $@ 35 echo '#define DF SF' >> $@ 36 echo '#define FLOAT_ONLY' >> $@ 37 echo '#endif' >> $@ 38 cat $(gcc_srcdir)/config/fp-bit.c >> $@ 39 40DPBIT = dp-bit.c 41$(gcc_objdir)/dp-bit.c: $(gcc_srcdir)/config/fp-bit.c 42 echo '#ifdef __RX_64BIT_DOUBLES__' > $@ 43 cat $(gcc_srcdir)/config/fp-bit.c >> $@ 44 echo '#endif' >> $@ 45