solenv/gbuild/platform/com_GCC_defs.mk

   1 # -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
   2 #
   3 # This file is part of the LibreOffice project.
   4 #
   5 # This Source Code Form is subject to the terms of the Mozilla Public
   6 # License, v. 2.0. If a copy of the MPL was not distributed with this
   7 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8 #
   9
  10 gb_AWK := awk
  11
  12 gb_CLASSPATHSEP := :
  13 gb_LICENSE := LICENSE
  14 gb_README = README_$(1)
  15
  16 # use CC/CXX if they are nondefaults
  17 ifneq ($(origin CC),default)
  18 gb_CC := $(CC)
  19 gb_GCCP := $(CC)
  20 else
  21 gb_CC := gcc
  22 gb_GCCP := gcc
  23 endif
  24
  25 ifneq ($(origin CXX),default)
  26 gb_CXX := $(CXX)
  27 else
  28 gb_CXX := g++
  29 endif
  30
  31 ifneq ($(origin AR),default)
  32 gb_AR := $(AR)
  33 else
  34 gb_AR := $(shell $(CC) -print-prog-name=ar)
  35 endif
  36
  37 # shell setup (env.vars) for the compiler
  38 gb_COMPILER_SETUP :=
  39
  40 ifeq ($(strip $(gb_COMPILEROPTFLAGS)),)
  41 gb_COMPILEROPTFLAGS := -O2
  42 endif
  43
  44 gb_COMPILEROPTFLAGS += $(if $(ENABLE_HARDENING_FLAGS),$(HARDENING_OPT_CFLAGS))
  45
  46 gb_AFLAGS := $(AFLAGS)
  47
  48 gb_COMPILERDEFS := \
  49         -DBOOST_SYSTEM_NO_DEPRECATED \
  50         -DCPPU_ENV=$(CPPU_ENV) \
  51         $(if $(filter EMSCRIPTEN,$(OS)),-U_FORTIFY_SOURCE) \
  52
  53 # enable debug STL
  54 ifeq ($(ENABLE_DBGUTIL),TRUE)
  55 ifneq ($(HAVE_LIBSTDCPP),)
  56 gb_COMPILERDEFS_STDLIB_DEBUG = -D_GLIBCXX_DEBUG
  57 else
  58 ifneq ($(LIBCPP_DEBUG),)
  59 gb_COMPILERDEFS_STDLIB_DEBUG = $(LIBCPP_DEBUG)
  60 endif
  61 endif
  62 gb_COMPILERDEFS += $(gb_COMPILERDEFS_STDLIB_DEBUG)
  63 endif
  64
  65 gb_CFLAGS_COMMON := \
  66         -Wall \
  67         -Wendif-labels \
  68         -Wextra \
  69         -Wstrict-prototypes \
  70         -Wundef \
  71         -Wunreachable-code \
  72         $(if $(or $(and $(COM_IS_CLANG),$(or $(findstring icecc,$(CC)),$(findstring icecc,$(CCACHE_PREFIX)))),$(findstring sccache,$(CC))),,-Wunused-macros) \
  73         $(if $(COM_IS_CLANG),-Wembedded-directive) \
  74         $(if $(COM_IS_CLANG),-Wshadow-all) \
  75         -finput-charset=UTF-8 \
  76         -fmessage-length=0 \
  77         -fno-common \
  78         -pipe \
  79         $(if $(ENABLE_HARDENING_FLAGS),$(HARDENING_CFLAGS)) \
  80         $(if $(filter EMSCRIPTEN,$(OS)),-fno-stack-protector,-fstack-protector-strong) \
  81
  82 gb_CXXFLAGS_COMMON := \
  83         -Wall \
  84         -Wno-missing-braces \
  85         -Wendif-labels \
  86         -Wextra \
  87         -Wundef \
  88         -Wunreachable-code \
  89         -Wshadow \
  90         $(if $(or $(and $(COM_IS_CLANG),$(or $(findstring icecc,$(CXX)),$(findstring icecc,$(CCACHE_PREFIX)))),$(findstring sccache,$(CXX))),,-Wunused-macros) \
  91         $(if $(COM_IS_CLANG),-Wembedded-directive) \
  92         -finput-charset=UTF-8 \
  93         -fmessage-length=0 \
  94         -fno-common \
  95         -pipe \
  96         $(if $(ENABLE_HARDENING_FLAGS),$(HARDENING_CFLAGS)) \
  97         $(if $(filter EMSCRIPTEN,$(OS)),-fno-stack-protector,-fstack-protector-strong) \
  98
  99 ifeq ($(HAVE_WDEPRECATED_COPY_DTOR),TRUE)
 100 gb_CXXFLAGS_COMMON += -Wdeprecated-copy-dtor
 101 endif
 102
 103 gb_CXXFLAGS_DISABLE_WARNINGS = -w
 104
 105 ifeq ($(HAVE_BROKEN_GCC_WMAYBE_UNINITIALIZED),TRUE)
 106 gb_CXXFLAGS_COMMON += -Wno-maybe-uninitialized
 107 endif
 108
 109 ifeq ($(HAVE_BROKEN_GCC_WSTRINGOP_OVERFLOW),TRUE)
 110 gb_CXXFLAGS_COMMON += -Wno-stringop-overflow
 111 endif
 112
 113 gb_CXXFLAGS_Wundef = -Wno-undef
 114
 115 gb_CXXFLAGS_include := -include$(gb_SPACE)
 116
 117 ifeq ($(strip $(gb_GCOV)),YES)
 118 gb_CFLAGS_COMMON += -fprofile-arcs -ftest-coverage
 119 gb_CXXFLAGS_COMMON += -fprofile-arcs -ftest-coverage
 120 gb_LinkTarget_LDFLAGS += -fprofile-arcs -lgcov
 121 gb_COMPILEROPTFLAGS := -O0
 122 endif
 123
 124 ifeq ($(DISABLE_DYNLOADING),TRUE)
 125 gb_CFLAGS_COMMON += -ffunction-sections -fdata-sections
 126 gb_CXXFLAGS_COMMON += -ffunction-sections -fdata-sections
 127 ifneq ($(OS),EMSCRIPTEN)
 128 gb_LinkTarget_LDFLAGS += -Wl,--gc-sections
 129 endif
 130 endif
 131
 132 ifeq ($(COM_IS_CLANG),TRUE)
 133 gb_CXXFLAGS_COMMON += \
 134         -Wimplicit-fallthrough \
 135         -Wunused-exception-parameter \
 136         -Wrange-loop-analysis
 137 else
 138 gb_CFLAGS_COMMON += \
 139     -Wduplicated-cond \
 140     -Wlogical-op \
 141     -Wshift-overflow=2
 142 gb_CXXFLAGS_COMMON += \
 143     -Wduplicated-cond \
 144     -Wlogical-op \
 145     -Wshift-overflow=2 \
 146     -Wunused-const-variable=1
 147 endif
 148
 149 # If CC or CXX already include -fvisibility=hidden, don't duplicate it
 150 ifeq (,$(filter -fvisibility=hidden,$(CC)))
 151 gb_VISIBILITY_FLAGS := -fvisibility=hidden
 152 endif
 153 gb_VISIBILITY_FLAGS_CXX := -fvisibility-inlines-hidden
 154 gb_CXXFLAGS_COMMON += $(gb_VISIBILITY_FLAGS_CXX)
 155
 156 gb_LinkTarget_LDFLAGS += $(if $(filter EMSCRIPTEN,$(OS)),-fno-stack-protector,-fstack-protector-strong)
 157
 158 ifneq ($(gb_ENABLE_PCH),)
 159 ifeq ($(COM_IS_CLANG),TRUE)
 160 # Clang by default includes in the PCH timestamps of the files it was
 161 # generated from, which would make the PCH be a "new" file for ccache
 162 # even if the file has not actually changed. Disabling the timestamp
 163 # prevents this at the cost of risking using an outdated PCH (which
 164 # should be unlikely, given that gbuild has dependencies set up
 165 # for our includes and system includes are unlikely to change).
 166 gb_NO_PCH_TIMESTAMP := -Xclang -fno-pch-timestamp
 167 else
 168 gb_CFLAGS_COMMON += -fpch-preprocess -Winvalid-pch
 169 gb_CXXFLAGS_COMMON += -fpch-preprocess -Winvalid-pch
 170 gb_NO_PCH_TIMESTAMP :=
 171 endif
 172 endif
 173
 174 gb_CFLAGS_WERROR = $(if $(ENABLE_WERROR),-Werror)
 175
 176 # This is the default in non-C++11 mode
 177 ifeq ($(COM_IS_CLANG),TRUE)
 178 gb_CXX03FLAGS := -std=gnu++98 -Werror=c++11-extensions -Wno-c++11-long-long \
 179     -Wno-deprecated-declarations
 180 else
 181 gb_CXX03FLAGS := -std=gnu++98 -Wno-long-long \
 182     -Wno-variadic-macros -Wno-deprecated-declarations
 183 endif
 184
 185 ifeq ($(ENABLE_LTO),TRUE)
 186 ifeq ($(COM_IS_CLANG),TRUE)
 187 gb_LTOFLAGS := -flto=thin
 188 ifeq (,$(index,iOS MACOSX,$(OS)))
 189 gb_LTOPLUGINFLAGS := --plugin $(if $(LD_PLUGIN),$(LD_PLUGIN),LLVMgold.so)
 190 endif
 191 else
 192 # use parallelism based on make's job handling
 193 gb_LTOFLAGS := -flto=jobserver -fuse-linker-plugin -O2
 194 # clang does not support -flto=<number>
 195 gb_CLANG_LTOFLAGS := -flto=thin
 196 endif
 197 endif
 198
 199 gb_LinkTarget_EXCEPTIONFLAGS := \
 200         -fexceptions
 201
 202 ifeq ($(ENABLE_DBGUTIL),)
 203 # Clang doesn't have this option
 204 ifeq ($(HAVE_GCC_FNO_ENFORCE_EH_SPECS),TRUE)
 205 gb_LinkTarget_EXCEPTIONFLAGS += \
 206         -fno-enforce-eh-specs
 207 gb_FilterOutClangCFLAGS += -fno-enforce-eh-specs
 208 endif
 209 endif
 210
 211 gb_PrecompiledHeader_EXCEPTIONFLAGS := $(gb_LinkTarget_EXCEPTIONFLAGS)
 212
 213 # We turn on and off this one depending on whether icecream and/or ccache are used,
 214 # and changing cxxflags cause PCH rebuilds, so e.g. a plain temporary 'CCACHE_DISABLE=1'
 215 # would cause a rebuild. Ignore the flag there, it's irrelevant for PCH use anyway.
 216 gb_PrecompiledHeader_ignore_flags_for_flags_file := -Wunused-macros
 217
 218 # optimization level
 219 gb_COMPILERNOOPTFLAGS := -O0 -Wp,-U_FORTIFY_SOURCE -fstrict-aliasing -fstrict-overflow
 220 gb_COMPILERDEBUGOPTFLAGS := -Og
 221
 222 ifeq ($(OS),ANDROID)
 223 gb_DEBUGINFO_FLAGS=-glldb
 224 # Clang does not know -ggdb2 or some other options
 225 else ifeq ($(HAVE_GCC_GGDB2),TRUE)
 226 gb_DEBUGINFO_FLAGS=-ggdb2
 227 else
 228 gb_DEBUGINFO_FLAGS=-g2
 229 endif
 230 gb_LINKER_DEBUGINFO_FLAGS=
 231
 232 ifeq ($(HAVE_EXTERNAL_DWARF),TRUE)
 233 gb_DEBUGINFO_FLAGS+=-gsplit-dwarf
 234 # GCC 11 defaults to -gdwarf-5, which GDB 10 doesn't support in split debug info
 235 ifeq ($(COM_IS_CLANG),)
 236 gb_DEBUGINFO_FLAGS+=-gdwarf-4
 237 endif
 238 endif
 239
 240 ifeq ($(HAVE_CLANG_DEBUG_INFO_KIND_CONSTRUCTOR),TRUE)
 241 gb_DEBUGINFO_FLAGS+=-Xclang -debug-info-kind=constructor
 242 endif
 243
 244 ifeq ($(ENABLE_GDB_INDEX),TRUE)
 245 gb_LINKER_DEBUGINFO_FLAGS += -Wl,--gdb-index
 246 gb_DEBUGINFO_FLAGS += -ggnu-pubnames
 247 endif
 248
 249 gb_LinkTarget_INCLUDE :=\
 250     $(SOLARINC) \
 251     -I$(BUILDDIR)/config_$(gb_Side) \
 252
 253 ifeq ($(COM_IS_CLANG),TRUE)
 254 gb_COMPILER_TEST_FLAGS := -Xclang -plugin-arg-loplugin -Xclang --unit-test-mode
 255 gb_COMPILER_PLUGINS := -Xclang -load -Xclang $(BUILDDIR)/compilerplugins/clang/plugin.so -Xclang -add-plugin -Xclang loplugin
 256 ifneq ($(COMPILER_PLUGIN_WARNINGS_ONLY),)
 257 gb_COMPILER_PLUGINS += -Xclang -plugin-arg-loplugin -Xclang \
 258     --warnings-only='$(COMPILER_PLUGIN_WARNINGS_ONLY)'
 259 endif
 260 ifeq ($(COMPILER_PLUGINS_DEBUG),TRUE)
 261 gb_COMPILER_PLUGINS += -Xclang -plugin-arg-loplugin -Xclang --debug
 262 endif
 263 gb_COMPILER_PLUGINS_TOOL := -Xclang -load -Xclang $(BUILDDIR)/compilerplugins/clang/plugin.so -Xclang -plugin -Xclang loplugin $(foreach plugin,$(COMPILER_PLUGIN_TOOL), -Xclang -plugin-arg-loplugin -Xclang $(plugin))
 264 ifneq ($(UPDATE_FILES),)
 265 gb_COMPILER_PLUGINS_TOOL += -Xclang -plugin-arg-loplugin -Xclang --scope=$(UPDATE_FILES)
 266 endif
 267 ifeq ($(COMPILER_PLUGINS_DEBUG),TRUE)
 268 gb_COMPILER_PLUGINS_TOOL += -Xclang -plugin-arg-loplugin -Xclang --debug
 269 endif
 270
 271 # Set CCACHE_CPP2=1 to prevent Clang generating spurious warnings.
 272
 273 # For Emscripten, the emcc command is a Python script that outputs annoying warnings like
 274 # .../emscripten/tools/building.py:638: ResourceWarning: unclosed file <_io.TextIOWrapper name='/tmp/emscripten_temp_0fvvg__1/conftest.js.jso.js' mode='w' encoding='utf-8'>
 275 # into stderr, which makes a configure script think that there is a problem in
 276 # compiling even a microscopic test program with an option like -Werror which
 277 # surely *is* supported. Avoid this by setting PYTHONWARNINGS=ignore.
 278
 279 gb_COMPILER_SETUP += CCACHE_CPP2=1 $(if $(filter EMSCRIPTEN,$(OS)),PYTHONWARNINGS=ignore)
 280 gb_COMPILER_PLUGINS_SETUP := ICECC_EXTRAFILES=$(SRCDIR)/include/sal/log-areas.dox CCACHE_EXTRAFILES=$(SRCDIR)/include/sal/log-areas.dox SCCACHE_EXTRAFILES=$(SRCDIR)/include/sal/log-areas.dox
 281 gb_COMPILER_PLUGINS_WARNINGS_AS_ERRORS := \
 282     -Xclang -plugin-arg-loplugin -Xclang --warnings-as-errors
 283 else
 284 # Set CCACHE_CPP2 to prevent GCC -Werror=implicit-fallthrough= when ccache strips comments from C
 285 # code (which still needs /*fallthrough*/-style comments to silence that warning):
 286 ifeq ($(ENABLE_WERROR),TRUE)
 287 gb_COMPILER_SETUP += CCACHE_CPP2=1
 288 endif
 289 gb_COMPILER_TEST_FLAGS :=
 290 gb_COMPILER_PLUGINS :=
 291 gb_COMPILER_PLUGINS_TOOL :=
 292 gb_COMPILER_PLUGINS_SETUP :=
 293 gb_COMPILER_PLUGINS_WARNINGS_AS_ERRORS :=
 294 endif
 295
 296 # Executable class
 297
 298 gb_Executable_EXT_for_build :=
 299
 300 # Helper class
 301
 302 ifeq ($(OS_FOR_BUILD),MACOSX)
 303 gb_Helper_LIBRARY_PATH_VAR := DYLD_LIBRARY_PATH
 304 else ifeq ($(OS_FOR_BUILD),WNT)
 305 # In theory possible if cross-compiling to some Unix from Windows,
 306 # in practice strongly discouraged to even try that
 307 gb_Helper_LIBRARY_PATH_VAR := PATH
 308 else ifeq ($(OS_FOR_BUILD),HAIKU)
 309 gb_Helper_LIBRARY_PATH_VAR := LIBRARY_PATH
 310 else
 311 gb_Helper_LIBRARY_PATH_VAR := LD_LIBRARY_PATH
 312 endif
 313
 314 gb_Helper_set_ld_path := $(gb_Helper_LIBRARY_PATH_VAR)=$${$(gb_Helper_LIBRARY_PATH_VAR):+$$$(gb_Helper_LIBRARY_PATH_VAR):}"$(INSTROOT_FOR_BUILD)/$(LIBO_URE_LIB_FOLDER_FOR_BUILD):$(INSTROOT_FOR_BUILD)/$(LIBO_LIB_FOLDER_FOR_BUILD)"
 315
 316 # $(1): list of : separated directory pathnames to append to the ld path
 317 define gb_Helper_extend_ld_path
 318 $(gb_Helper_set_ld_path):$(1)
 319 endef
 320
 321 # Convert path to file URL.
 322 define gb_Helper_make_url
 323 file://$(strip $(1))
 324 endef
 325
 326 gb_Helper_get_rcfile = $(1)rc
 327
 328 ifneq ($(gb_ENABLE_PCH),)
 329 # Enable use of .sum files for PCHs.
 330 gb_COMPILER_SETUP += CCACHE_PCH_EXTSUM=1
 331 endif
 332
 333 # vim: set noet sw=4: