tools/lib/traceevent/Makefile - linux - Git at Google

 # SPDX-License-Identifier: GPL-2.0
 # trace-cmd version
 EP_VERSION = 1
 EP_PATCHLEVEL = 1
 EP_EXTRAVERSION = 0

 # file format version
 FILE_VERSION = 6

 MAKEFLAGS += --no-print-directory


 # Makefiles suck: This macro sets a default value of $(2) for the
 # variable named by $(1), unless the variable has been set by
 # environment or command line. This is necessary for CC and AR
 # because make sets default values, so the simpler ?= approach
 # won't work as expected.
 define allow-override
   $(if $(or $(findstring environment,$(origin $(1))),\
             $(findstring command line,$(origin $(1)))),,\
     $(eval $(1) = $(2)))
 endef

 # Allow setting CC and AR, or setting CROSS_COMPILE as a prefix.
 $(call allow-override,CC,$(CROSS_COMPILE)gcc)
 $(call allow-override,AR,$(CROSS_COMPILE)ar)
 $(call allow-override,NM,$(CROSS_COMPILE)nm)
 $(call allow-override,PKG_CONFIG,pkg-config)

 EXT = -std=gnu99
 INSTALL = install

 # Use DESTDIR for installing into a different root directory.
 # This is useful for building a package. The program will be
 # installed in this directory as if it was the root directory.
 # Then the build tool can move it later.
 DESTDIR ?=
 DESTDIR_SQ = '$(subst ','\'',$(DESTDIR))'

 LP64 := $(shell echo __LP64__ | ${CC} ${CFLAGS} -E -x c - | tail -n 1)
 ifeq ($(LP64), 1)
   libdir_relative_temp = lib64
 else
   libdir_relative_temp = lib
 endif

 libdir_relative ?= $(libdir_relative_temp)
 prefix ?= /usr/local
 libdir = $(prefix)/$(libdir_relative)
 man_dir = $(prefix)/share/man
 man_dir_SQ = '$(subst ','\'',$(man_dir))'
 pkgconfig_dir ?= $(word 1,$(shell $(PKG_CONFIG) 		\
 			--variable pc_path pkg-config | tr ":" " "))
 includedir_relative = traceevent
 includedir = $(prefix)/include/$(includedir_relative)
 includedir_SQ = '$(subst ','\'',$(includedir))'

 export man_dir man_dir_SQ INSTALL
 export DESTDIR DESTDIR_SQ
 export EVENT_PARSE_VERSION

 include ../../scripts/Makefile.include

 # copy a bit from Linux kbuild

 ifeq ("$(origin V)", "command line")
   VERBOSE = $(V)
 endif
 ifndef VERBOSE
   VERBOSE = 0
 endif

 ifeq ($(srctree),)
 srctree := $(patsubst %/,%,$(dir $(CURDIR)))
 srctree := $(patsubst %/,%,$(dir $(srctree)))
 srctree := $(patsubst %/,%,$(dir $(srctree)))
 #$(info Determined 'srctree' to be $(srctree))
 endif

 export prefix libdir src obj

 # Shell quotes
 libdir_SQ = $(subst ','\'',$(libdir))
 libdir_relative_SQ = $(subst ','\'',$(libdir_relative))

 CONFIG_INCLUDES =
 CONFIG_LIBS	=
 CONFIG_FLAGS	=

 VERSION		= $(EP_VERSION)
 PATCHLEVEL	= $(EP_PATCHLEVEL)
 EXTRAVERSION	= $(EP_EXTRAVERSION)

 OBJ		= $@
 N		=

 EVENT_PARSE_VERSION = $(EP_VERSION).$(EP_PATCHLEVEL).$(EP_EXTRAVERSION)

 LIB_TARGET  = libtraceevent.a libtraceevent.so.$(EVENT_PARSE_VERSION)
 LIB_INSTALL = libtraceevent.a libtraceevent.so*
 LIB_INSTALL := $(addprefix $(OUTPUT),$(LIB_INSTALL))

 INCLUDES = -I. -I $(srctree)/tools/include $(CONFIG_INCLUDES)

 # Set compile option CFLAGS
 ifdef EXTRA_CFLAGS
   CFLAGS := $(EXTRA_CFLAGS)
 else
   CFLAGS := -g -Wall
 endif

 # Append required CFLAGS
 override CFLAGS += -fPIC
 override CFLAGS += $(CONFIG_FLAGS) $(INCLUDES) $(PLUGIN_DIR_SQ)
 override CFLAGS += $(udis86-flags) -D_GNU_SOURCE

 ifeq ($(VERBOSE),1)
   Q =
 else
   Q = @
 endif

 # Disable command line variables (CFLAGS) override from top
 # level Makefile (perf), otherwise build Makefile will get
 # the same command line setup.
 MAKEOVERRIDES=

 export srctree OUTPUT CC LD CFLAGS V
 build := -f $(srctree)/tools/build/Makefile.build dir=. obj

 TE_IN      := $(OUTPUT)libtraceevent-in.o
 LIB_TARGET := $(addprefix $(OUTPUT),$(LIB_TARGET))

 CMD_TARGETS = $(LIB_TARGET)

 TARGETS = $(CMD_TARGETS)

 all: all_cmd plugins

 all_cmd: $(CMD_TARGETS)

 $(TE_IN): force
 	$(Q)$(MAKE) $(build)=libtraceevent

 $(OUTPUT)libtraceevent.so.$(EVENT_PARSE_VERSION): $(TE_IN)
 	$(QUIET_LINK)$(CC) --shared $(LDFLAGS) $^ -Wl,-soname,libtraceevent.so.$(EP_VERSION) -o $@
 	@ln -sf $(@F) $(OUTPUT)libtraceevent.so
 	@ln -sf $(@F) $(OUTPUT)libtraceevent.so.$(EP_VERSION)

 $(OUTPUT)libtraceevent.a: $(TE_IN)
 	$(QUIET_LINK)$(RM) $@; $(AR) rcs $@ $^

 $(OUTPUT)%.so: $(OUTPUT)%-in.o
 	$(QUIET_LINK)$(CC) $(CFLAGS) -shared $(LDFLAGS) -nostartfiles -o $@ $^

 define make_version.h
   (echo '/* This file is automatically generated. Do not modify. */';		\
    echo \#define VERSION_CODE $(shell						\
    expr $(VERSION) \* 256 + $(PATCHLEVEL));					\
    echo '#define EXTRAVERSION ' $(EXTRAVERSION);				\
    echo '#define VERSION_STRING "'$(VERSION).$(PATCHLEVEL).$(EXTRAVERSION)'"';	\
    echo '#define FILE_VERSION '$(FILE_VERSION);					\
   ) > $1
 endef

 define update_version.h
   ($(call make_version.h, $@.tmp);		\
     if [ -r $@ ] && cmp -s $@ $@.tmp; then	\
       rm -f $@.tmp;				\
     else					\
       echo '  UPDATE                 $@';	\
       mv -f $@.tmp $@;				\
     fi);
 endef

 ep_version.h: force
 	$(Q)$(N)$(call update_version.h)

 VERSION_FILES = ep_version.h

 define update_dir
   (echo $1 > $@.tmp;				\
    if [ -r $@ ] && cmp -s $@ $@.tmp; then	\
      rm -f $@.tmp;				\
    else						\
      echo '  UPDATE                 $@';	\
      mv -f $@.tmp $@;				\
    fi);
 endef

 tags:	force
 	$(RM) tags
 	find . -name '*.[ch]' | xargs ctags --extra=+f --c-kinds=+px \
 	--regex-c++='/_PE\(([^,)]*).*/TEP_ERRNO__\1/'

 TAGS:	force
 	$(RM) TAGS
 	find . -name '*.[ch]' | xargs etags \
 	--regex='/_PE(\([^,)]*\).*/TEP_ERRNO__\1/'

 define do_install_mkdir
 	if [ ! -d '$(DESTDIR_SQ)$1' ]; then		\
 		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$1';	\
 	fi
 endef

 define do_install
 	$(call do_install_mkdir,$2);			\
 	$(INSTALL) $(if $3,-m $3,) $1 '$(DESTDIR_SQ)$2'
 endef

 PKG_CONFIG_SOURCE_FILE = libtraceevent.pc
 PKG_CONFIG_FILE := $(addprefix $(OUTPUT),$(PKG_CONFIG_SOURCE_FILE))
 define do_install_pkgconfig_file
 	if [ -n "${pkgconfig_dir}" ]; then 					\
 		cp -f ${PKG_CONFIG_SOURCE_FILE}.template ${PKG_CONFIG_FILE};	\
 		sed -i "s|INSTALL_PREFIX|${1}|g" ${PKG_CONFIG_FILE}; 		\
 		sed -i "s|LIB_VERSION|${EVENT_PARSE_VERSION}|g" ${PKG_CONFIG_FILE}; \
 		sed -i "s|LIB_DIR|${libdir}|g" ${PKG_CONFIG_FILE}; \
 		sed -i "s|HEADER_DIR|$(includedir)|g" ${PKG_CONFIG_FILE}; \
 		$(call do_install,$(PKG_CONFIG_FILE),$(pkgconfig_dir),644); 	\
 	else 									\
 		(echo Failed to locate pkg-config directory) 1>&2;		\
 	fi
 endef

 install_lib: all_cmd install_plugins install_headers install_pkgconfig
 	$(call QUIET_INSTALL, $(LIB_TARGET)) \
 		$(call do_install_mkdir,$(libdir_SQ)); \
 		cp -fpR $(LIB_INSTALL) $(DESTDIR)$(libdir_SQ)

 install_pkgconfig:
 	$(call QUIET_INSTALL, $(PKG_CONFIG_FILE)) \
 		$(call do_install_pkgconfig_file,$(prefix))

 install_headers:
 	$(call QUIET_INSTALL, headers) \
 		$(call do_install,event-parse.h,$(includedir_SQ),644); \
 		$(call do_install,event-utils.h,$(includedir_SQ),644); \
 		$(call do_install,trace-seq.h,$(includedir_SQ),644); \
 		$(call do_install,kbuffer.h,$(includedir_SQ),644)

 install: install_lib

 clean: clean_plugins
 	$(call QUIET_CLEAN, libtraceevent) \
 		$(RM) *.o *~ $(TARGETS) *.a *.so $(VERSION_FILES) .*.d .*.cmd; \
 		$(RM) TRACEEVENT-CFLAGS tags TAGS; \
 		$(RM) $(PKG_CONFIG_FILE)

 PHONY += doc
 doc:
 	$(call descend,Documentation)

 PHONY += doc-clean
 doc-clean:
 	$(call descend,Documentation,clean)

 PHONY += doc-install
 doc-install:
 	$(call descend,Documentation,install)

 PHONY += doc-uninstall
 doc-uninstall:
 	$(call descend,Documentation,uninstall)

 PHONY += help
 help:
 	@echo 'Possible targets:'
 	@echo''
 	@echo '  all                 - default, compile the library and the'\
 				      'plugins'
 	@echo '  plugins             - compile the plugins'
 	@echo '  install             - install the library, the plugins,'\
 					'the header and pkgconfig files'
 	@echo '  clean               - clean the library and the plugins object files'
 	@echo '  doc                 - compile the documentation files - man'\
 					'and html pages, in the Documentation directory'
 	@echo '  doc-clean           - clean the documentation files'
 	@echo '  doc-install         - install the man pages'
 	@echo '  doc-uninstall       - uninstall the man pages'
 	@echo''

 PHONY += plugins
 plugins:
 	$(call descend,plugins)

 PHONY += install_plugins
 install_plugins:
 	$(call descend,plugins,install)

 PHONY += clean_plugins
 clean_plugins:
 	$(call descend,plugins,clean)

 force:

 # Declare the contents of the .PHONY variable as phony.  We keep that
 # information in a variable so we can use it in if_changed and friends.
 .PHONY: $(PHONY)
	# SPDX-License-Identifier: GPL-2.0
	# trace-cmd version
	EP_VERSION = 1
	EP_PATCHLEVEL = 1
	EP_EXTRAVERSION = 0

	# file format version
	FILE_VERSION = 6

	MAKEFLAGS += --no-print-directory


	# Makefiles suck: This macro sets a default value of $(2) for the
	# variable named by $(1), unless the variable has been set by
	# environment or command line. This is necessary for CC and AR
	# because make sets default values, so the simpler ?= approach
	# won't work as expected.
	define allow-override
	$(if $(or $(findstring environment,$(origin $(1))),\
	$(findstring command line,$(origin $(1)))),,\
	$(eval $(1) = $(2)))
	endef

	# Allow setting CC and AR, or setting CROSS_COMPILE as a prefix.
	$(call allow-override,CC,$(CROSS_COMPILE)gcc)
	$(call allow-override,AR,$(CROSS_COMPILE)ar)
	$(call allow-override,NM,$(CROSS_COMPILE)nm)
	$(call allow-override,PKG_CONFIG,pkg-config)

	EXT = -std=gnu99
	INSTALL = install

	# Use DESTDIR for installing into a different root directory.
	# This is useful for building a package. The program will be
	# installed in this directory as if it was the root directory.
	# Then the build tool can move it later.
	DESTDIR ?=
	DESTDIR_SQ = '$(subst ','\'',$(DESTDIR))'

	LP64 := $(shell echo __LP64__ \| ${CC} ${CFLAGS} -E -x c - \| tail -n 1)
	ifeq ($(LP64), 1)
	libdir_relative_temp = lib64
	else
	libdir_relative_temp = lib
	endif

	libdir_relative ?= $(libdir_relative_temp)
	prefix ?= /usr/local
	libdir = $(prefix)/$(libdir_relative)
	man_dir = $(prefix)/share/man
	man_dir_SQ = '$(subst ','\'',$(man_dir))'
	pkgconfig_dir ?= $(word 1,$(shell $(PKG_CONFIG) \
	--variable pc_path pkg-config \| tr ":" " "))
	includedir_relative = traceevent
	includedir = $(prefix)/include/$(includedir_relative)
	includedir_SQ = '$(subst ','\'',$(includedir))'

	export man_dir man_dir_SQ INSTALL
	export DESTDIR DESTDIR_SQ
	export EVENT_PARSE_VERSION

	include ../../scripts/Makefile.include

	# copy a bit from Linux kbuild

	ifeq ("$(origin V)", "command line")
	VERBOSE = $(V)
	endif
	ifndef VERBOSE
	VERBOSE = 0
	endif

	ifeq ($(srctree),)
	srctree := $(patsubst %/,%,$(dir $(CURDIR)))
	srctree := $(patsubst %/,%,$(dir $(srctree)))
	srctree := $(patsubst %/,%,$(dir $(srctree)))
	#$(info Determined 'srctree' to be $(srctree))
	endif

	export prefix libdir src obj

	# Shell quotes
	libdir_SQ = $(subst ','\'',$(libdir))
	libdir_relative_SQ = $(subst ','\'',$(libdir_relative))

	CONFIG_INCLUDES =
	CONFIG_LIBS =
	CONFIG_FLAGS =

	VERSION = $(EP_VERSION)
	PATCHLEVEL = $(EP_PATCHLEVEL)
	EXTRAVERSION = $(EP_EXTRAVERSION)

	OBJ = $@
	N =

	EVENT_PARSE_VERSION = $(EP_VERSION).$(EP_PATCHLEVEL).$(EP_EXTRAVERSION)

	LIB_TARGET = libtraceevent.a libtraceevent.so.$(EVENT_PARSE_VERSION)
	LIB_INSTALL = libtraceevent.a libtraceevent.so*
	LIB_INSTALL := $(addprefix $(OUTPUT),$(LIB_INSTALL))

	INCLUDES = -I. -I $(srctree)/tools/include $(CONFIG_INCLUDES)

	# Set compile option CFLAGS
	ifdef EXTRA_CFLAGS
	CFLAGS := $(EXTRA_CFLAGS)
	else
	CFLAGS := -g -Wall
	endif

	# Append required CFLAGS
	override CFLAGS += -fPIC
	override CFLAGS += $(CONFIG_FLAGS) $(INCLUDES) $(PLUGIN_DIR_SQ)
	override CFLAGS += $(udis86-flags) -D_GNU_SOURCE

	ifeq ($(VERBOSE),1)
	Q =
	else
	Q = @
	endif

	# Disable command line variables (CFLAGS) override from top
	# level Makefile (perf), otherwise build Makefile will get
	# the same command line setup.
	MAKEOVERRIDES=

	export srctree OUTPUT CC LD CFLAGS V
	build := -f $(srctree)/tools/build/Makefile.build dir=. obj

	TE_IN := $(OUTPUT)libtraceevent-in.o
	LIB_TARGET := $(addprefix $(OUTPUT),$(LIB_TARGET))

	CMD_TARGETS = $(LIB_TARGET)

	TARGETS = $(CMD_TARGETS)

	all: all_cmd plugins

	all_cmd: $(CMD_TARGETS)

	$(TE_IN): force
	$(Q)$(MAKE) $(build)=libtraceevent

	$(OUTPUT)libtraceevent.so.$(EVENT_PARSE_VERSION): $(TE_IN)
	$(QUIET_LINK)$(CC) --shared $(LDFLAGS) $^ -Wl,-soname,libtraceevent.so.$(EP_VERSION) -o $@
	@ln -sf $(@F) $(OUTPUT)libtraceevent.so
	@ln -sf $(@F) $(OUTPUT)libtraceevent.so.$(EP_VERSION)

	$(OUTPUT)libtraceevent.a: $(TE_IN)
	$(QUIET_LINK)$(RM) $@; $(AR) rcs $@ $^

	$(OUTPUT)%.so: $(OUTPUT)%-in.o
	$(QUIET_LINK)$(CC) $(CFLAGS) -shared $(LDFLAGS) -nostartfiles -o $@ $^

	define make_version.h
	(echo '/* This file is automatically generated. Do not modify. */'; \
	echo \#define VERSION_CODE $(shell \
	expr $(VERSION) \* 256 + $(PATCHLEVEL)); \
	echo '#define EXTRAVERSION ' $(EXTRAVERSION); \
	echo '#define VERSION_STRING "'$(VERSION).$(PATCHLEVEL).$(EXTRAVERSION)'"'; \
	echo '#define FILE_VERSION '$(FILE_VERSION); \
	) > $1
	endef

	define update_version.h
	($(call make_version.h, $@.tmp); \
	if [ -r $@ ] && cmp -s $@ $@.tmp; then \
	rm -f $@.tmp; \
	else \
	echo ' UPDATE $@'; \
	mv -f $@.tmp $@; \
	fi);
	endef

	ep_version.h: force
	$(Q)$(N)$(call update_version.h)

	VERSION_FILES = ep_version.h

	define update_dir
	(echo $1 > $@.tmp; \
	if [ -r $@ ] && cmp -s $@ $@.tmp; then \
	rm -f $@.tmp; \
	else \
	echo ' UPDATE $@'; \
	mv -f $@.tmp $@; \
	fi);
	endef

	tags: force
	$(RM) tags
	find . -name '*.[ch]' \| xargs ctags --extra=+f --c-kinds=+px \
	--regex-c++='/_PE\(([^,)])./TEP_ERRNO__\1/'

	TAGS: force
	$(RM) TAGS
	find . -name '*.[ch]' \| xargs etags \
	--regex='/_PE(\([^,)]\)./TEP_ERRNO__\1/'

	define do_install_mkdir
	if [ ! -d '$(DESTDIR_SQ)$1' ]; then \
	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$1'; \
	fi
	endef

	define do_install
	$(call do_install_mkdir,$2); \
	$(INSTALL) $(if $3,-m $3,) $1 '$(DESTDIR_SQ)$2'
	endef

	PKG_CONFIG_SOURCE_FILE = libtraceevent.pc
	PKG_CONFIG_FILE := $(addprefix $(OUTPUT),$(PKG_CONFIG_SOURCE_FILE))
	define do_install_pkgconfig_file
	if [ -n "${pkgconfig_dir}" ]; then \
	cp -f ${PKG_CONFIG_SOURCE_FILE}.template ${PKG_CONFIG_FILE}; \
	sed -i "s\|INSTALL_PREFIX\|${1}\|g" ${PKG_CONFIG_FILE}; \
	sed -i "s\|LIB_VERSION\|${EVENT_PARSE_VERSION}\|g" ${PKG_CONFIG_FILE}; \
	sed -i "s\|LIB_DIR\|${libdir}\|g" ${PKG_CONFIG_FILE}; \
	sed -i "s\|HEADER_DIR\|$(includedir)\|g" ${PKG_CONFIG_FILE}; \
	$(call do_install,$(PKG_CONFIG_FILE),$(pkgconfig_dir),644); \
	else \
	(echo Failed to locate pkg-config directory) 1>&2; \
	fi
	endef

	install_lib: all_cmd install_plugins install_headers install_pkgconfig
	$(call QUIET_INSTALL, $(LIB_TARGET)) \
	$(call do_install_mkdir,$(libdir_SQ)); \
	cp -fpR $(LIB_INSTALL) $(DESTDIR)$(libdir_SQ)

	install_pkgconfig:
	$(call QUIET_INSTALL, $(PKG_CONFIG_FILE)) \
	$(call do_install_pkgconfig_file,$(prefix))

	install_headers:
	$(call QUIET_INSTALL, headers) \
	$(call do_install,event-parse.h,$(includedir_SQ),644); \
	$(call do_install,event-utils.h,$(includedir_SQ),644); \
	$(call do_install,trace-seq.h,$(includedir_SQ),644); \
	$(call do_install,kbuffer.h,$(includedir_SQ),644)

	install: install_lib

	clean: clean_plugins
	$(call QUIET_CLEAN, libtraceevent) \
	$(RM) .o ~ $(TARGETS) .a .so $(VERSION_FILES) ..d ..cmd; \
	$(RM) TRACEEVENT-CFLAGS tags TAGS; \
	$(RM) $(PKG_CONFIG_FILE)

	PHONY += doc
	doc:
	$(call descend,Documentation)

	PHONY += doc-clean
	doc-clean:
	$(call descend,Documentation,clean)

	PHONY += doc-install
	doc-install:
	$(call descend,Documentation,install)

	PHONY += doc-uninstall
	doc-uninstall:
	$(call descend,Documentation,uninstall)

	PHONY += help
	help:
	@echo 'Possible targets:'
	@echo''
	@echo ' all - default, compile the library and the'\
	'plugins'
	@echo ' plugins - compile the plugins'
	@echo ' install - install the library, the plugins,'\
	'the header and pkgconfig files'
	@echo ' clean - clean the library and the plugins object files'
	@echo ' doc - compile the documentation files - man'\
	'and html pages, in the Documentation directory'
	@echo ' doc-clean - clean the documentation files'
	@echo ' doc-install - install the man pages'
	@echo ' doc-uninstall - uninstall the man pages'
	@echo''

	PHONY += plugins
	plugins:
	$(call descend,plugins)

	PHONY += install_plugins
	install_plugins:
	$(call descend,plugins,install)

	PHONY += clean_plugins
	clean_plugins:
	$(call descend,plugins,clean)

	force:

	# Declare the contents of the .PHONY variable as phony. We keep that
	# information in a variable so we can use it in if_changed and friends.
	.PHONY: $(PHONY)