| ############################################################################ |
| # libs/libxx/libcxx.defs |
| # |
| # 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. |
| # |
| ########################################################################### |
| |
| LIBCXX_VERSION=$(patsubst "%",%,$(CONFIG_LIBCXX_VERSION)) |
| |
| # Download and unpack tarball if no git repo found |
| ifeq ($(wildcard libcxx/.git),) |
| libcxx-$(LIBCXX_VERSION).src.tar.xz: |
| $(call DOWNLOAD,https://github.com/llvm/llvm-project/releases/download/llvmorg-$(LIBCXX_VERSION),libcxx-$(LIBCXX_VERSION).src.tar.xz) |
| |
| libcxx: libcxx-$(LIBCXX_VERSION).src.tar.xz |
| $(Q) tar -xf libcxx-$(LIBCXX_VERSION).src.tar.xz \ |
| --exclude libcxx-$(LIBCXX_VERSION).src/test/std/pstl |
| $(Q) mv libcxx-$(LIBCXX_VERSION).src libcxx |
| $(Q) patch -p2 < mbstate_t.patch |
| $(Q) patch -p0 < 0001-libcxx-remove-mach-time-h.patch |
| $(Q) touch $@ |
| endif |
| |
| $(TOPDIR)/include/libcxx: libcxx |
| $(Q) $(DIRLINK) $(CURDIR)/libcxx/include $(TOPDIR)/include/libcxx |
| $(Q) cp $(CURDIR)/__config_site $(TOPDIR)/include/libcxx/__config_site |
| |
| context:: $(TOPDIR)/include/libcxx |
| |
| distclean:: |
| $(Q) $(DIRUNLINK) $(TOPDIR)/include/libcxx |
| ifeq ($(wildcard libcxx/.git),) |
| $(Q) $(DELFILE) libcxx-$(LIBCXX_VERSION).src.tar.xz |
| $(call DELDIR, libcxx) |
| endif |
| |
| CXXFLAGS += ${DEFINE_PREFIX}_LIBCPP_BUILDING_LIBRARY |
| CXXFLAGS += ${INCDIR_PREFIX}$(CURDIR)/libcxx/src |
| |
| ifeq ($(CONFIG_LIBSUPCXX), y) |
| CXXFLAGS += ${DEFINE_PREFIX}__GLIBCXX__ |
| endif |
| |
| # Workaround the following warning with "c++ (Ubuntu 9.3.0-10ubuntu2) 9.3.0" |
| # |
| # libcxx/src/barrier.cpp: In constructor 'std::__1::__barrier_algorithm_base::__barrier_algorithm_base(ptrdiff_t&)': |
| # libcxx/src/barrier.cpp:35:9: warning: declaration of '__expected' shadows a member of 'std::__1::__barrier_algorithm_base' [-Wshadow] |
| # 35 | : __expected(__expected) |
| # | ^ |
| # libcxx/src/barrier.cpp:29:24: note: shadowed declaration is here |
| # 29 | ptrdiff_t& __expected; |
| # | ^~~~~~~~~~ |
| libcxx/src/barrier.cpp_CXXFLAGS += -Wno-shadow |
| libcxx/src/locale.cpp_CXXFLAGS += -Wno-shadow |
| libcxx/src/filesystem/operations.cpp_CXXFLAGS += -Wno-shadow |
| |
| # Workaround the following warning with "GCC 12" |
| # |
| # ... |
| # include/libcxx/string:2156:35: warning: '__temp' may be used uninitialized [-Wmaybe-uninitialized] |
| # 2156 | this->__throw_length_error(); |
| # | ~~~~~~~~~~~~~~~~~~~~~~~~~~^~ |
| # include/libcxx/string:614:1: note: by argument 1 of type 'const std::__1::__basic_string_common<true>*' to 'void std::__1::__basic_string_common<<anonymous> >::__throw_length_error() const [with bool <anonymous> = true]' declared here |
| # 614 | __basic_string_common<__b>::__throw_length_error() const |
| # | ^~~~~~~~~~~~~~~~~~~~~~~~~~ |
| # include/libcxx/string:2676:32: note: '__temp' declared here |
| # 2676 | const basic_string __temp (__first, __last, __alloc()); |
| # | ^~~~~~ |
| |
| ifeq ($(GCCVER),) |
| export GCCVER = $(shell $(CXX) --version | grep ++ | sed -E 's/.* ([0-9]+\.[0-9]+).*/\1/' | cut -d'.' -f1) |
| endif |
| |
| ifeq ($(GCCVER),12) |
| libcxx/src/filesystem/operations.cpp_CXXFLAGS += -Wno-maybe-uninitialized |
| libcxx/src/locale.cpp_CXXFLAGS += -Wno-maybe-uninitialized |
| endif |
| |
| # Workaround the following warning with "GCC 12" |
| # |
| # ... |
| # include/libcxx/new:237:24: warning: argument 1 value '18446744073709551599' exceeds maximum object size 9223372036854775807 [-Walloc-size-larger-than=] |
| # 237 | return ::operator new(__args...); |
| # | ~~~~~~~~~~~~~~^~~~~~~~~~~ |
| |
| ifeq ($(GCCVER),12) |
| libcxx/src/string.cpp_CXXFLAGS += -Wno-alloc-size-larger-than |
| endif |
| |
| # The following warning was observed with icicle:knsh config. |
| # Looking at the code in question, it seems harmless to ignore. |
| # |
| # Note: For some reasons, GCC -Wall enables a different set of warnings |
| # for C and C++. |
| # |
| # References: |
| # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=10604 |
| # https://github.com/gcc-mirror/gcc/blob/e54375d85d4aa5889869c2672158083b2106b623/gcc/c-family/c.opt#L1285-L1287 |
| # |
| # CXX: libcxx/src/condition_variable.cpp |
| # libcxx/src/condition_variable.cpp: In member function 'void std::__1::condition_variable::__do_timed_wait(std::__1::unique_lock<std::__1::mutex>&, std::__1::chrono::time_point<std::__1::chrono::system_clock, std::__1::chrono::duration<long long int, std::__1::ratio<1, 1000000000> > >)': |
| # libcxx/src/condition_variable.cpp:64:19: error: comparison of integer expressions of different signedness: 'std::__1::chrono::duration<long long int>::rep' {aka 'long long int'} and 'std::__1::__libcpp_numeric_limits<long unsigned int, true>::type' {aka 'long unsigned int'} [-Werror=sign-compare] |
| # if (s.count() < ts_sec_max) |
| # ~~~~~~~~~~^~~~~~~~~~~~ |
| libcxx/src/condition_variable.cpp_CXXFLAGS += -Wno-sign-compare |
| |
| # When building with GCC 12.2.0 |
| # libcxx has a fallback to use __always_inline__ when the (clang) exclude_from_explicit_instantiation isn't available. |
| # This causes: `always_inline` function might not be inlinable [-Wattributes] warnings in some modules. |
| # For example: |
| # libcxx/src/include/to_chars_floating_point.h:988:17: warning: ‘always_inline’ function might not be inlinable [-Wattributes] |
| # Should be OK to ignore these |
| ifeq ($(GCCVER),12) |
| libcxx/src/charconv.cpp_CXXFLAGS += -Wno-attributes |
| endif |
| |
| # Another warning on gcc 12.2.0 |
| # libcxx/src/locale.cpp:6604:85: warning: type attributes ignored after type is already defined [-Wattributes] |
| # 6604 | template class _LIBCPP_DEPRECATED_IN_CXX20 _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS codecvt_byname<char16_t, char, mbstate_t>; |
| # | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| # libcxx/src/locale.cpp:6605:85: warning: type attributes ignored after type is already defined [-Wattributes] |
| # 6605 | template class _LIBCPP_DEPRECATED_IN_CXX20 _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS codecvt_byname<char32_t, char, mbstate_t>; |
| ifeq ($(GCCVER),12) |
| libcxx/src/locale.cpp_CXXFLAGS += -Wno-attributes |
| endif |
| |
| # warning on gcc >= 12.3.Rel1 |
| # libcxx/src/string.cpp:58:33: warning: 'template<class _CharT> struct std::__1::char_traits' is deprecated: char_traits<T> for T not equal to char, wchar_t, char8_t, char16_t or char32_t is non-standard and is provided for a temporary period. It will be removed in LLVM 18, so please migrate off of it. [-Wdeprecated-declarations] |
| # 58 | template string operator+<char, char_traits<char>, allocator<char>>(char const*, string const&); |
| ifneq ($(GCCVER),) |
| ifeq ($(shell expr $(GCCVER) \>= 12), 1) |
| libcxx/src/string.cpp_CXXFLAGS += -Wno-deprecated-declarations |
| endif |
| endif |
| |
| # warning on gcc >= 12.3.Rel1 |
| # libcxx/src/filesystem/path.cpp:14: |
| # libcxx/src/filesystem/path_parser.h: In constructor 'std::__1::__fs::filesystem::parser::PathParser::PathParser(std::__1::__fs::filesystem::parser::string_view_t, ParserState)': |
| # libcxx/src/filesystem/path_parser.h:58:43: warning: declaration of 'State' shadows a member of 'std::__1::__fs::filesystem::parser::PathParser' [-Wshadow] |
| # 58 | PathParser(string_view_t P, ParserState State) noexcept : Path(P), |
| # | ~~~~~~~~~~~~^~~~~ |
| # libcxx/src/filesystem/path_parser.h:55:15: note: shadowed declaration is here |
| # 55 | ParserState State; |
| # | ^~~~~ |
| # libcxx/src/filesystem/path_parser.h: In constructor 'std::__1::__fs::filesystem::parser::PathParser::PathParser(std::__1::__fs::filesystem::parser::string_view_t, ParserState)': |
| # libcxx/src/filesystem/path_parser.h:58:43: warning: declaration of 'State' shadows a member of 'std::__1::__fs::filesystem::parser::PathParser' [-Wshadow] |
| # 58 | PathParser(string_view_t P, ParserState State) noexcept : Path(P), |
| # | ~~~~~~~~~~~~^~~~~ |
| # libcxx/src/filesystem/path_parser.h:55:15: note: shadowed declaration is here |
| # 55 | ParserState State; |
| # | ^~~~~ |
| # libcxx/src/filesystem/path_parser.h: In constructor 'std::__1::__fs::filesystem::parser::PathParser::PathParser(std::__1::__fs::filesystem::parser::string_view_t, ParserState)': |
| # libcxx/src/filesystem/path_parser.h:58:43: warning: declaration of 'State' shadows a member of 'std::__1::__fs::filesystem::parser::PathParser' [-Wshadow] |
| # 58 | PathParser(string_view_t P, ParserState State) noexcept : Path(P), |
| # | ~~~~~~~~~~~~^~~~~ |
| # libcxx/src/filesystem/path_parser.h:55:15: note: shadowed declaration is here |
| # 55 | ParserState State; |
| # | ^~~~~ |
| ifneq ($(GCCVER),) |
| ifeq ($(shell expr $(GCCVER) \>= 12), 1) |
| libcxx/src/filesystem/path.cpp_CXXFLAGS += -Wno-shadow |
| endif |
| endif |
| |
| # warning on gcc >= 12.3.Rel1 |
| # libcxx/src/ryu/d2s.cpp:490:31: warning: '_Trailing_zero_bits' may be used uninitialized [-Wmaybe-uninitialized] |
| # 490 | _Trailing_zero_bits += 32; |
| # | ~~~~~~~~~~~~~~~~~~~~^~~~~ |
| ifneq ($(GCCVER),) |
| ifeq ($(shell expr $(GCCVER) \>= 12), 1) |
| libcxx/src/ryu/d2s.cpp_CXXFLAGS += -Wno-maybe-uninitialized |
| endif |
| endif |
| |
| |
| CPPSRCS += $(wildcard libcxx/src/*.cpp) |
| CPPSRCS += $(wildcard libcxx/src/experimental/*.cpp) |
| CPPSRCS += $(wildcard libcxx/src/filesystem/*.cpp) |
| CPPSRCS += $(wildcard libcxx/src/ryu/*.cpp) |