############################################################################
# libs/libxx/libstdc++/libsupc++.defs
#
# SPDX-License-Identifier: Apache-2.0
#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.  The
# ASF licenses this file to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance with the
# License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
# License for the specific language governing permissions and limitations
# under the License.
#
###########################################################################

LIBSTDCXX_VERSION=$(patsubst "%",%,$(CONFIG_LIBSTDCXX_VERSION))

# Download and unpack tarball if no git repo found
ifeq ($(wildcard libstdc++/libstdc++/.git),)
libstdc++-v3.tar.gz:
	$(call DOWNLOAD,https://gnu.googlesource.com/gcc/+archive/refs/tags/releases/gcc-$(LIBSTDCXX_VERSION),libstdc++-v3.tar.gz)

libstdc++/libstdc++: libstdc++-v3.tar.gz
	$(Q) mkdir -p $@
	$(Q) tar -xzf $< -C $@
endif

C++DIR = $(TOPDIR)/include/c++
BITSDIR = $(TOPDIR)/include/c++/bits
CONDIR = libstdc++/libstdc++/config
INCDIR = libstdc++/libstdc++/include
SUPDIR = libstdc++/libstdc++/libsupc++

ifeq ($(CONFIG_ARCH_ARM),y)
CPU_CONFIG = arm
else
CPU_CONFIG = generic
endif

$(BITSDIR): libstdc++/libstdc++
	$(Q) mkdir -p $(BITSDIR)

copy_headers: $(BITSDIR)
	$(Q) cp libstdc++/c++config.h $(INCDIR)/bits
	$(Q) cp $(SUPDIR)/compare $(C++DIR)
	$(Q) cp $(SUPDIR)/exception $(C++DIR)
	$(Q) cp $(SUPDIR)/initializer_list $(C++DIR)
	$(Q) cp $(SUPDIR)/new $(C++DIR)
	$(Q) cp $(SUPDIR)/typeinfo $(C++DIR)
	$(Q) cp $(TOPDIR)/libs/libbuiltin/libgcc/libgcc/gthr.h $(C++DIR)
	$(Q) cp $(TOPDIR)/libs/libbuiltin/libgcc/libgcc/gthr-posix.h $(C++DIR)/gthr-default.h
	$(Q) cp $(TOPDIR)/libs/libbuiltin/libgcc/libgcc/unwind-pe.h libstdc++
	$(Q) cp $(SUPDIR)/atomic_lockfree_defines.h $(BITSDIR)
	$(Q) cp $(SUPDIR)/cxxabi_forced.h $(BITSDIR)
	$(Q) cp $(SUPDIR)/exception_defines.h $(BITSDIR)
	$(Q) cp $(SUPDIR)/exception_ptr.h $(BITSDIR)
	$(Q) cp $(SUPDIR)/hash_bytes.h $(BITSDIR)
	$(Q) cp $(SUPDIR)/nested_exception.h $(BITSDIR)
	$(Q) cp $(SUPDIR)/exception.h $(BITSDIR)
	$(Q) cp $(SUPDIR)/cxxabi_init_exception.h $(BITSDIR)
	$(Q) cp $(CONDIR)/cpu/generic/cpu_defines.h $(BITSDIR)
	$(Q) cp $(CONDIR)/cpu/$(CPU_CONFIG)/cxxabi_tweaks.h $(BITSDIR)
	$(Q) cp $(CONDIR)/cpu/generic/atomic_word.h $(BITSDIR)
	$(Q) cp $(CONDIR)/os/generic/os_defines.h $(BITSDIR)

context:: copy_headers

distclean::
	$(call DELDIR, $(BITSDIR))
	$(call DELFILE, $(INCDIR)/bits/c++config.h)
ifeq ($(wildcard libstdc++/libstdc++/.git),)
	$(call DELDIR, libstdc++)
	$(call DELFILE, libstdc++.tar.gz)
endif

SUPCXXFLAGS += -I$(INCDIR) -I$(SUPDIR) -I$(TOPDIR)/libs/libxx/libstdc++

CXXFLAGS += -Wno-undef -Wno-unused-result

define COMPILESUPCC
	$(ECHO_BEGIN)"CC $1 "
	$(Q) $(CCACHE) $(CC) -c $(SUPCXXFLAGS) $3 $($(strip $1)_CXXFLAGS) $1 -o $2
	$(ECHO_END)
endef

ifneq ($(CONFIG_CXX_RTTI),y)
RTTI_SUPSRCS = $(SUPDIR)/eh_arm.cc $(SUPDIR)/eh_call.cc
endif

SUPSRCS += $(filter-out $(RTTI_SUPSRCS),$(wildcard $(SUPDIR)/*.cc))
SUPOBJS = $(SUPSRCS:.cc=.o)

$(SUPOBJS): %.o: %.cc
	$(call COMPILESUPCC, $<, $@)

OBJS += $(SUPOBJS)