Subversion Repositories openrisc_2011-10-31

# Copyright (C) 2008 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

# .

# Compile the extra library functions.

LIB2FUNCS_EXTRA = \

        $(srcdir)/config/picochip/libgccExtras/ashrsi3.asm              \

        $(srcdir)/config/picochip/libgccExtras/ashlsi3.asm              \

        $(srcdir)/config/picochip/libgccExtras/divmodhi4.asm            \

        $(srcdir)/config/picochip/libgccExtras/udivmodhi4.asm           \

        $(srcdir)/config/picochip/libgccExtras/divmodsi4.asm            \

        $(srcdir)/config/picochip/libgccExtras/udivmodsi4.asm           \

        $(srcdir)/config/picochip/libgccExtras/divmod15.asm             \

        $(srcdir)/config/picochip/libgccExtras/ucmpsi2.asm              \

        $(srcdir)/config/picochip/libgccExtras/cmpsi2.asm               \

        $(srcdir)/config/picochip/libgccExtras/clzsi2.asm                       \

        $(srcdir)/config/picochip/libgccExtras/adddi3.asm                       \

        $(srcdir)/config/picochip/libgccExtras/subdi3.asm                       \

        $(srcdir)/config/picochip/libgccExtras/lshrsi3.asm              \

        $(srcdir)/config/picochip/libgccExtras/parityhi2.asm            \

        $(srcdir)/config/picochip/libgccExtras/popcounthi2.asm

# Prevent some of the more complicated libgcc functions from being

# compiled. This is because they are generally too big to fit into an

# AE anyway, so there is no point in having them. Also, some don't

# compile properly so we'll ignore them for the moment.

LIB1ASMFUNCS = _mulsc3 _divsc3

LIB1ASMSRC = picochip/libgccExtras/fake_libgcc.asm

# Turn off the building of exception handling libraries.

LIB2ADDEH =

LIB2ADDEHDEP =

# Turn off ranlib on target libraries.

RANLIB_FOR_TARGET = cat

# Special libgcc setup. Make single/double floating point the same,

# and use our own include files.

TARGET_LIBGCC2_CFLAGS = -DDF=SF -I../../includes/

# Switch off all debugging for the embedded libraries.

# (embedded processors need small libraries by default).

# NOTE: If the debug level is increased, turn off instruction scheduling.

LIBGCC2_DEBUG_CFLAGS = -g0

# Build all combinations of library for different multiply units, and

# presence/absence of byte access.

MULTILIB_OPTIONS = mmul-type=none/mmul-type=mac/mmul-type=mul mno-byte-access/mbyte-access

# Using a mul unit (currently) implies that byte access is available.

MULTILIB_EXCEPTIONS = mmul-type=mul/mno-byte-access

# We want fine grained libraries, so use the new code

# to build the floating point emulation libraries.

FPBIT = fp-bit.c

# Software floating point support. Floating point is not properly

# supported, but is existence can be useful for some types of testing.

fp-bit.c:       $(srcdir)/config/fp-bit.c

        echo '#define FLOAT' > fp-bit.c

        echo '#define FLOAT_ONLY' >> fp-bit.c

        echo '#define SMALL_MACHINE' >> fp-bit.c

        cat $(srcdir)/config/fp-bit.c >> fp-bit.c