1# Top level -*- makefile -*- fragment for GNU C++. 2# Copyright (C) 1994-2020 Free Software Foundation, Inc. 3 4#This file is part of GCC. 5 6#GCC is free software; you can redistribute it and/or modify 7#it under the terms of the GNU General Public License as published by 8#the Free Software Foundation; either version 3, or (at your option) 9#any later version. 10 11#GCC is distributed in the hope that it will be useful, 12#but WITHOUT ANY WARRANTY; without even the implied warranty of 13#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14#GNU General Public License for more details. 15 16# You should have received a copy of the GNU General Public License 17# along with GCC; see the file COPYING3. If not see 18# <http://www.gnu.org/licenses/>. 19 20# This file provides the language dependent support in the main Makefile. 21# Each language makefile fragment must provide the following targets: 22# 23# foo.all.cross, foo.start.encap, foo.rest.encap, 24# foo.install-common, foo.install-man, foo.install-info, foo.install-pdf, 25# foo.install-html, foo.info, foo.dvi, foo.pdf, foo.html, foo.uninstall, 26# foo.mostlyclean, foo.clean, foo.distclean, 27# foo.maintainer-clean, foo.stage1, foo.stage2, foo.stage3, foo.stage4 28# 29# where `foo' is the name of the language. 30# 31# It should also provide rules for: 32# 33# - making any compiler driver (eg: g++) 34# - the compiler proper (eg: cc1plus) 35# - define the names for selecting the language in LANGUAGES. 36 37# Actual names to use when installing a native compiler. 38CXX_INSTALL_NAME := $(shell echo c++|sed '$(program_transform_name)') 39GXX_INSTALL_NAME := $(shell echo g++|sed '$(program_transform_name)') 40CXX_TARGET_INSTALL_NAME := $(target_noncanonical)-$(shell echo c++|sed '$(program_transform_name)') 41GXX_TARGET_INSTALL_NAME := $(target_noncanonical)-$(shell echo g++|sed '$(program_transform_name)') 42CP_PLUGIN_HEADERS := cp-tree.h cxx-pretty-print.h name-lookup.h type-utils.h operators.def 43 44# 45# Define the names for selecting c++ in LANGUAGES. 46# Note that it would be nice to move the dependency on g++ 47# into the C++ rule, but that needs a little bit of work 48# to do the right thing within all.cross. 49c++: cc1plus$(exeext) 50 51# Tell GNU make to ignore these if they exist. 52.PHONY: c++ 53 54CFLAGS-cp/g++spec.o += $(DRIVER_DEFINES) 55 56# Create the compiler driver for g++. 57GXX_OBJS = $(GCC_OBJS) cp/g++spec.o 58xg++$(exeext): $(GXX_OBJS) $(EXTRA_GCC_OBJS) libcommon-target.a $(LIBDEPS) 59 +$(LINKER) $(ALL_LINKERFLAGS) $(LDFLAGS) -o $@ \ 60 $(GXX_OBJS) $(EXTRA_GCC_OBJS) libcommon-target.a \ 61 $(EXTRA_GCC_LIBS) $(LIBS) 62 63# Create a version of the g++ driver which calls the cross-compiler. 64g++-cross$(exeext): xg++$(exeext) 65 -rm -f g++-cross$(exeext) 66 cp xg++$(exeext) g++-cross$(exeext) 67 68# The compiler itself. 69# Shared with C front end: 70CXX_C_OBJS = attribs.o incpath.o \ 71 $(C_COMMON_OBJS) $(CXX_TARGET_OBJS) 72 73# Language-specific object files for C++ and Objective C++. 74CXX_AND_OBJCXX_OBJS = \ 75 cp/call.o cp/class.o cp/constexpr.o cp/constraint.o \ 76 cp/coroutines.o cp/cp-gimplify.o \ 77 cp/cp-objcp-common.o cp/cp-ubsan.o \ 78 cp/cvt.o cp/cxx-pretty-print.o \ 79 cp/decl.o cp/decl2.o cp/dump.o \ 80 cp/error.o cp/except.o cp/expr.o \ 81 cp/friend.o cp/init.o \ 82 cp/lambda.o cp/lex.o cp/logic.o \ 83 cp/mangle.o cp/method.o \ 84 cp/name-lookup.o cp/optimize.o \ 85 cp/parser.o cp/pt.o cp/ptree.o \ 86 cp/rtti.o \ 87 cp/search.o cp/semantics.o \ 88 cp/tree.o cp/typeck.o cp/typeck2.o \ 89 cp/vtable-class-hierarchy.o $(CXX_C_OBJS) 90 91ifeq ($(if $(wildcard ../stage_current),$(shell cat \ 92 ../stage_current)),stageautofeedback) 93$(CXX_AND_OBJCXX_OBJS): CFLAGS += -fauto-profile=cc1plus.fda 94$(CXX_AND_OBJCXX_OBJS): cc1plus.fda 95endif 96 97# Language-specific object files for C++. 98CXX_OBJS = cp/cp-lang.o c-family/stub-objc.o $(CXX_AND_OBJCXX_OBJS) 99 100c++_OBJS = $(CXX_OBJS) cc1plus-checksum.o cp/g++spec.o 101 102# Use strict warnings for this front end. 103cp-warn = $(STRICT_WARN) 104 105# compute checksum over all object files and the options 106# re-use the checksum from the prev-final stage so it passes 107# the bootstrap comparison and allows comparing of the cc1 binary 108cc1plus-checksum.c : build/genchecksum$(build_exeext) checksum-options \ 109 $(CXX_OBJS) $(BACKEND) $(LIBDEPS) 110 if [ -f ../stage_final ] \ 111 && cmp -s ../stage_current ../stage_final; then \ 112 cp ../prev-gcc/cc1plus-checksum.c cc1plus-checksum.c; \ 113 else \ 114 build/genchecksum$(build_exeext) $(CXX_OBJS) $(BACKEND) $(LIBDEPS) \ 115 checksum-options > cc1plus-checksum.c.tmp && \ 116 $(SHELL) $(srcdir)/../move-if-change cc1plus-checksum.c.tmp cc1plus-checksum.c; \ 117 fi 118 119cc1plus$(exeext): $(CXX_OBJS) cc1plus-checksum.o $(BACKEND) $(LIBDEPS) 120 +$(LLINKER) $(ALL_LINKERFLAGS) $(LDFLAGS) -o $@ \ 121 $(CXX_OBJS) cc1plus-checksum.o $(BACKEND) $(LIBS) $(BACKENDLIBS) 122 123ifeq ($(ENABLE_MAINTAINER_RULES), true) 124# Special build rule. This is a maintainer rule, that is only 125# available when GCC is configured with --enable-maintainer-mode. In 126# other cases, it is not available to avoid triggering rebuilds if a 127# user has the source checked out with unusual timestamps. 128$(srcdir)/cp/cfns.h: $(srcdir)/cp/cfns.gperf 129 @echo "NOT REBUILDING $@" 130NetBSD_DISABLED_cfns.h: 131else 132# We keep the rule so that you can still force a rebuild, even if you 133# didn't configure GCC with --enable-maintainer-mode, by manually 134# deleting the $(srcdir)/cp/cfns.h file. 135$(srcdir)/cp/cfns.h: 136endif 137 gperf -o -C -E -k '1-6,$$' -j1 -D -N 'libc_name_p' -L C++ \ 138 $(srcdir)/cp/cfns.gperf --output-file $(srcdir)/cp/cfns.h 139 140cc1plus.fda: ../stage1-gcc/cc1plus$(exeext) ../prev-gcc/$(PERF_DATA) 141 $(CREATE_GCOV) -binary ../stage1-gcc/cc1plus$(exeext) -gcov cc1plus.fda -profile ../prev-gcc/$(PERF_DATA) -gcov_version 1 142 143# 144# Build hooks: 145 146c++.all.cross: g++-cross$(exeext) 147c++.start.encap: xg++$(exeext) 148c++.rest.encap: 149c++.info: 150c++.install-info: 151c++.dvi: 152c++.pdf: 153c++.install-pdf: 154c++.install-html: 155c++.html: 156c++.srcinfo: 157c++.srcextra: 158 159c++.tags: force 160 cd $(srcdir)/cp; etags -o TAGS.sub *.c *.cc *.h --language=none \ 161 --regex='/DEFTREECODE [(]\([A-Z_]+\)/\1/' cp-tree.def; \ 162 etags --include TAGS.sub --include ../TAGS.sub 163 164c++.man: doc/g++.1 165 166c++.srcman: doc/g++.1 167 -cp -p $^ $(srcdir)/doc 168 169# C++ selftests 170 171# If C++ is enabled, require the selftests to be run for it 172# at each stage of the build: 173selftest-c++: s-selftest-c++ 174 175CPP_SELFTEST_DEPS = cc1plus$(exeext) $(SELFTEST_DEPS) 176CPP_SELFTEST_FLAGS = -xc++ $(SELFTEST_FLAGS) 177 178# Run the C++ selftests 179s-selftest-c++: $(CPP_SELFTEST_DEPS) 180 $(GCC_FOR_TARGET) $(CPP_SELFTEST_FLAGS) 181 $(STAMP) $@ 182 183# Convenience method for running C++ selftests under gdb: 184.PHONY: selftest-c++-gdb 185selftest-c++-gdb: $(CPP_SELFTEST_DEPS) 186 $(GCC_FOR_TARGET) $(CPP_SELFTEST_FLAGS) \ 187 -wrapper gdb,--args 188 189# Convenience method for running C++ selftests under valgrind: 190.PHONY: selftest-c++-valgrind 191selftest-c++-valgrind: $(CPP_SELFTEST_DEPS) 192 $(GCC_FOR_TARGET) $(CPP_SELFTEST_FLAGS) \ 193 -wrapper valgrind,--leak-check=full 194 195# 'make check' in gcc/ looks for check-c++, as do all toplevel C++-related 196# check targets. However, our DejaGNU framework requires 'check-g++' as its 197# entry point. We feed the former to the latter here. 198check-c++ : check-g++ 199 200# Run the testsuite in C++17 mode. 201check-c++1z: check-c++17 202check-c++17: 203 $(MAKE) RUNTESTFLAGS="$(RUNTESTFLAGS)" GXX_TESTSUITE_STDS=17 check-g++ 204 205# Run the testsuite in all standard conformance levels. 206check-c++-all: 207 $(MAKE) RUNTESTFLAGS="$(RUNTESTFLAGS) --stds=98,11,14,17,2a,concepts" check-g++ 208 209# Run the testsuite with garbage collection at every opportunity. 210check-g++-strict-gc: 211 $(MAKE) RUNTESTFLAGS="$(RUNTESTFLAGS) --extra_opts,--param,ggc-min-heapsize=0,--param,ggc-min-expand=0" \ 212 TESTSUITEDIR="$(TESTSUITEDIR).gc" check-g++ 213check-c++-subtargets : check-g++-subtargets 214# List of targets that can use the generic check- rule and its // variant. 215lang_checks += check-g++ 216lang_checks_parallelized += check-g++ 217# For description see the check_$lang_parallelize comment in gcc/Makefile.in. 218check_g++_parallelize = 10000 219# 220# Install hooks: 221# cc1plus is installed elsewhere as part of $(COMPILERS). 222 223# Install the driver program as $(target)-g++ and $(target)-c++, and 224# also as g++ and c++ if native. 225c++.install-common: installdirs 226 -if test "$(enable_as_accelerator)" != "yes" ; then \ 227 rm -f $(DESTDIR)$(bindir)/$(GXX_INSTALL_NAME)$(exeext); \ 228 $(INSTALL_PROGRAM) xg++$(exeext) $(DESTDIR)$(bindir)/$(GXX_INSTALL_NAME)$(exeext); \ 229 chmod a+x $(DESTDIR)$(bindir)/$(GXX_INSTALL_NAME)$(exeext); \ 230 rm -f $(DESTDIR)$(bindir)/$(CXX_INSTALL_NAME)$(exeext); \ 231 ( cd $(DESTDIR)$(bindir) && \ 232 $(LN) $(GXX_INSTALL_NAME)$(exeext) $(CXX_INSTALL_NAME)$(exeext) ); \ 233 if [ -f cc1plus$(exeext) ] ; then \ 234 if [ ! -f g++-cross$(exeext) ] ; then \ 235 rm -f $(DESTDIR)$(bindir)/$(GXX_TARGET_INSTALL_NAME)$(exeext); \ 236 ( cd $(DESTDIR)$(bindir) && \ 237 $(LN) $(GXX_INSTALL_NAME)$(exeext) $(GXX_TARGET_INSTALL_NAME)$(exeext) ); \ 238 rm -f $(DESTDIR)$(bindir)/$(CXX_TARGET_INSTALL_NAME)$(exeext); \ 239 ( cd $(DESTDIR)$(bindir) && \ 240 $(LN) $(CXX_INSTALL_NAME)$(exeext) $(CXX_TARGET_INSTALL_NAME)$(exeext) ); \ 241 fi ; \ 242 fi; \ 243 fi 244 245# We can't use links because not everyone supports them. So just copy the 246# manpage. 247doc/g++.1: doc/gcc.1 248 cp $< doc/g++.1 249 250c++.install-man: $(DESTDIR)$(man1dir)/$(GXX_INSTALL_NAME)$(man1ext) 251 252$(DESTDIR)$(man1dir)/$(GXX_INSTALL_NAME)$(man1ext): doc/g++.1 installdirs 253 -rm -f $@ 254 -$(INSTALL_DATA) $< $@ 255 -chmod a-x $@ 256 257c++.install-plugin: installdirs 258# We keep the directory structure for files in config and .def files. All 259# other files are flattened to a single directory. 260 headers="$(CP_PLUGIN_HEADERS)"; \ 261 for file in $$headers; do \ 262 path=$(srcdir)/cp/$$file; \ 263 dest=$(plugin_includedir)/cp/$$file; \ 264 echo $(INSTALL_DATA) $$path $(DESTDIR)$$dest; \ 265 dir=`dirname $$dest`; \ 266 $(mkinstalldirs) $(DESTDIR)$$dir; \ 267 $(INSTALL_DATA) $$path $(DESTDIR)$$dest; \ 268 done 269# Install import library. 270ifeq ($(plugin_implib),yes) 271 $(mkinstalldirs) $(DESTDIR)$(plugin_resourcesdir) 272 $(INSTALL_DATA) cc1plus$(exeext).a $(DESTDIR)/$(plugin_resourcesdir)/cc1plus$(exeext).a 273endif 274 275c++.uninstall: 276 -rm -rf $(DESTDIR)$(bindir)/$(CXX_INSTALL_NAME)$(exeext) 277 -rm -rf $(DESTDIR)$(bindir)/$(GXX_INSTALL_NAME)$(exeext) 278 -rm -rf $(DESTDIR)$(man1dir)/$(GXX_INSTALL_NAME)$(man1ext) 279# 280# Clean hooks: 281# A lot of the ancillary files are deleted by the main makefile. 282# We just have to delete files specific to us. 283 284c++.mostlyclean: 285 -rm -f doc/g++.1 286 -rm -f cp/*$(objext) 287 -rm -f cp/*$(coverageexts) 288 -rm -f xg++$(exeext) g++-cross$(exeext) cc1plus$(exeext) cc1plus.fda 289c++.clean: 290c++.distclean: 291 -rm -f cp/config.status cp/Makefile 292 -rm -f cxxmain.c 293c++.maintainer-clean: 294# 295# Stage hooks: 296# The main makefile has already created stage?/cp. 297 298c++.stage1: stage1-start 299 -mv cp/*$(objext) stage1/cp 300c++.stage2: stage2-start 301 -mv cp/*$(objext) stage2/cp 302c++.stage3: stage3-start 303 -mv cp/*$(objext) stage3/cp 304c++.stage4: stage4-start 305 -mv cp/*$(objext) stage4/cp 306c++.stageprofile: stageprofile-start 307 -mv cp/*$(objext) stageprofile/cp 308c++.stagefeedback: stagefeedback-start 309 -mv cp/*$(objext) stagefeedback/cp 310c++.autostageprofile: stageprofile-start 311 -mv cp/*$(objext) autostageprofile/cp 312c++.autostagefeedback: stagefeedback-start 313 -mv cp/*$(objext) autostagefeedback/cp 314