#  libcxx Makefile.uk
#
#  Authors: Vlad-Andrei Badoiu <vlad_andrei.badoiu@stud.acs.upb.ro>
#           Marco Schlumpp <marco@unikraft.io>
#           Andrei Tatar <andrei@unikraft.io>
#
#  Copyright (c) 2019, Politehnica University of Bucharest. All rights reserved.
#  Copyright (c) 2023, Unikraft GmbH and The Unikraft Authors.
#
#  Redistribution and use in source and binary forms, with or without
#  modification, are permitted provided that the following conditions
#  are met:
#
#  1. Redistributions of source code must retain the above copyright
#     notice, this list of conditions and the following disclaimer.
#  2. Redistributions in binary form must reproduce the above copyright
#     notice, this list of conditions and the following disclaimer in the
#     documentation and/or other materials provided with the distribution.
#  3. Neither the name of the copyright holder nor the names of its
#     contributors may be used to endorse or promote products derived from
#     this software without specific prior written permission.
#
#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
#  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
#  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
#  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
#  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
#  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
#  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
#  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
#  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
#  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
#  POSSIBILITY OF SUCH DAMAGE.
#


################################################################################
# Library registration
################################################################################
$(eval $(call addlib_s,libcxx,$(CONFIG_LIBCXX)))

ifeq ($(CONFIG_LIBCXX),y)
ifeq ($(call have_gcc),y)
$(call error_if_gcc_version_lt,11,0)
else ifeq ($(call have_clang),y)
$(call error_if_clang_version_lt,10,0)
endif
endif

################################################################################
# Sources
################################################################################
LIBCXX_VERSION=14.0.6
LIBCXX_URL=https://github.com/llvm/llvm-project/releases/download/llvmorg-$(LIBCXX_VERSION)/libcxx-$(LIBCXX_VERSION).src.tar.xz
LIBCXX_PATCHDIR=$(LIBCXX_BASE)/patches
$(eval $(call fetch,libcxx,$(LIBCXX_URL)))
$(eval $(call patch,libcxx,$(LIBCXX_PATCHDIR),libcxx-$(LIBCXX_VERSION).src))

################################################################################
# Helpers
################################################################################
LIBCXX_SRC = $(LIBCXX_ORIGIN)/libcxx-$(LIBCXX_VERSION).src

################################################################################
# Library includes
################################################################################
CINCLUDES-$(CONFIG_LIBCXX) += -I$(LIBCXX_BASE)/include
CINCLUDES-$(CONFIG_LIBCXX) += -I$(LIBCXX_SRC)/src
CINCLUDES-$(CONFIG_LIBCXX) += -I$(LIBCXX_SRC)/include

CXXINCLUDES-$(CONFIG_LIBCXX) += -I$(LIBCXX_BASE)/include
CXXINCLUDES-$(CONFIG_LIBCXX) += -I$(LIBCXX_SRC)/src
CXXINCLUDES-$(CONFIG_LIBCXX) += -I$(LIBCXX_SRC)/include

# include/locale uses _GNU_SOURCE extensions from stdlib.h
CXXFLAGS-$(CONFIG_LIBCXX) += -D_GNU_SOURCE

################################################################################
# Global flags
################################################################################
LIBCXX_CONFIG_FLAGS += -DLIBCXX_BUILDING_LIBCXXABI
LIBCXX_CONFIG_FLAGS += -D_LIBCPP_BUILDING_LIBRARY
LIBCXX_CONFIG_FLAGS += -D_LIBCPP_DISABLE_NEW_DELETE_DEFINITIONS
LIBCXX_CONFIG_FLAGS += -D_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER
LIBCXX_CONFIG_FLAGS += -D__STDC_CONSTANT_MACROS
LIBCXX_CONFIG_FLAGS += -D__STDC_FORMAT_MACROS
LIBCXX_CONFIG_FLAGS += -D__STDC_LIMIT_MACROS

LIBCXX_SUPPRESS_FLAGS-y += -Wno-attributes
LIBCXX_SUPPRESS_FLAGS-y += -Wno-comment
LIBCXX_SUPPRESS_FLAGS-y += -Wno-error
LIBCXX_SUPPRESS_FLAGS-y += -Wno-long-long
LIBCXX_SUPPRESS_FLAGS-y += -Wno-misleading-indentation
LIBCXX_SUPPRESS_FLAGS-y += -Wno-missing-field-initializers
LIBCXX_SUPPRESS_FLAGS-y += -Wno-unused-parameter
LIBCXX_SUPPRESS_FLAGS-y += -Wno-parentheses
LIBCXX_SUPPRESS_FLAGS-y += -Wno-deprecated-declarations
LIBCXX_SUPPRESS_FLAGS-y += -Wno-array-bounds
LIBCXX_SUPPRESS_FLAGS-y += -Wno-cpp
LIBCXX_SUPPRESS_FLAGS-$(call have_clang) += -Wno-keyword-compat
LIBCXX_SUPPRESS_FLAGS-$(call have_clang) += -Wno-user-defined-literals
LIBCXX_SUPPRESS_FLAGS-$(call have_gcc) += -Wno-stringop-overflow
LIBCXX_SUPPRESS_FLAGS-$(call have_gcc) += -Wno-alloc-size-larger-than
LIBCXX_SUPPRESS_FLAGS-$(call have_gcc) += -Wno-maybe-uninitialized
LIBCXX_SUPPRESS_FLAGS-$(call have_gcc) += -Wno-unknown-pragmas

LIBCXX_CFLAGS-y    += $(LIBCXX_CONFIG_FLAGS)
LIBCXX_CXXFLAGS-y  += $(LIBCXX_CONFIG_FLAGS) -std=c++2a
LIBCXX_CXXFLAGS-$(call have_gcc) += -Wno-literal-suffix
LIBCXX_CXXFLAGS-$(call have_gcc) += -Wno-dangling-reference

LIBCXX_CFLAGS-y   += $(LIBCXX_SUPPRESS_FLAGS-y)
LIBCXX_CXXFLAGS-y += $(LIBCXX_SUPPRESS_FLAGS-y)

LIBCXX_SRCS-y += $(LIBCXX_BASE)/glue.c
################################################################################
# Library sources
################################################################################
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/algorithm.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/any.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/atomic.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/barrier.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/bind.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/charconv.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/chrono.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/condition_variable.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/condition_variable_destructor.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/exception.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/filesystem/directory_iterator.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/filesystem/operations.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/functional.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/future.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/hash.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/ios.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/ios.instantiations.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/iostream.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/legacy_pointer_safety.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/locale.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/memory.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/experimental/memory_resource.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/mutex.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/mutex_destructor.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/new.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/optional.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/random.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/random_shuffle.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/regex.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/ryu/d2fixed.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/ryu/d2s.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/ryu/f2s.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/shared_mutex.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/stdexcept.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/string.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/strstream.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/system_error.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/thread.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/typeinfo.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/utility.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/valarray.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/variant.cpp
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/vector.cpp

ifneq ($(CONFIG_LIBCOMPILER_RT),y)
# Compiler RT comes with an own implementation
LIBCXX_SRCS-y += $(LIBCXX_SRC)/src/filesystem/int128_builtins.cpp
endif