tools/lib/traceevent/Makefile - pub/scm/linux/kernel/git/minchan/linux - Git at Google

 # 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)

 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))'

 prefix ?= /usr/local
 bindir_relative = bin
 bindir = $(prefix)/$(bindir_relative)
 man_dir = $(prefix)/share/man
 man_dir_SQ = '$(subst ','\'',$(man_dir))'
 html_install = $(prefix)/share/kernelshark/html
 html_install_SQ = '$(subst ','\'',$(html_install))'
 img_install = $(prefix)/share/kernelshark/html/images
 img_install_SQ = '$(subst ','\'',$(img_install))'

 export man_dir man_dir_SQ html_install html_install_SQ INSTALL
 export img_install img_install_SQ
 export DESTDIR DESTDIR_SQ

 # copy a bit from Linux kbuild

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

 ifeq ("$(origin O)", "command line")
   BUILD_OUTPUT := $(O)
 endif

 ifeq ($(BUILD_SRC),)
 ifneq ($(BUILD_OUTPUT),)

 define build_output
 	$(if $(VERBOSE:1=),@)$(MAKE) -C $(BUILD_OUTPUT) 	\
 	BUILD_SRC=$(CURDIR) -f $(CURDIR)/Makefile $1
 endef

 saved-output := $(BUILD_OUTPUT)
 BUILD_OUTPUT := $(shell cd $(BUILD_OUTPUT) && /bin/pwd)
 $(if $(BUILD_OUTPUT),, \
      $(error output directory "$(saved-output)" does not exist))

 all: sub-make

 gui: force
 	$(call build_output, all_cmd)

 $(filter-out gui,$(MAKECMDGOALS)): sub-make

 sub-make: force
 	$(call build_output, $(MAKECMDGOALS))


 # Leave processing to above invocation of make
 skip-makefile := 1

 endif # BUILD_OUTPUT
 endif # BUILD_SRC

 # We process the rest of the Makefile if this is the final invocation of make
 ifeq ($(skip-makefile),)

 srctree		:= $(if $(BUILD_SRC),$(BUILD_SRC),$(CURDIR))
 objtree		:= $(CURDIR)
 src		:= $(srctree)
 obj		:= $(objtree)

 export prefix bindir src obj

 # Shell quotes
 bindir_SQ = $(subst ','\'',$(bindir))
 bindir_relative_SQ = $(subst ','\'',$(bindir_relative))

 LIB_FILE = libtraceevent.a libtraceevent.so

 CONFIG_INCLUDES =
 CONFIG_LIBS	=
 CONFIG_FLAGS	=

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

 OBJ		= $@
 N		=

 export Q VERBOSE

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

 INCLUDES = -I. -I/usr/local/include $(CONFIG_INCLUDES)

 # Set compile option CFLAGS if not set elsewhere
 CFLAGS ?= -g -Wall

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

 ifeq ($(VERBOSE),1)
   Q =
   print_compile =
   print_app_build =
   print_fpic_compile =
   print_shared_lib_compile =
   print_plugin_obj_compile =
   print_plugin_build =
   print_install =
 else
   Q = @
   print_compile =		echo '  CC                 '$(OBJ);
   print_app_build =		echo '  BUILD              '$(OBJ);
   print_fpic_compile =		echo '  CC FPIC            '$(OBJ);
   print_shared_lib_compile =	echo '  BUILD SHARED LIB   '$(OBJ);
   print_plugin_obj_compile =	echo '  CC PLUGIN OBJ      '$(OBJ);
   print_plugin_build =		echo '  CC PLUGI           '$(OBJ);
   print_static_lib_build =	echo '  BUILD STATIC LIB   '$(OBJ);
   print_install =		echo '  INSTALL     '$1'	to	$(DESTDIR_SQ)$2';
 endif

 do_fpic_compile =					\
 	($(print_fpic_compile)				\
 	$(CC) -c $(CFLAGS) $(EXT) -fPIC $< -o $@)

 do_app_build =						\
 	($(print_app_build)				\
 	$(CC) $^ -rdynamic -o $@ $(CONFIG_LIBS) $(LIBS))

 do_compile_shared_library =			\
 	($(print_shared_lib_compile)		\
 	$(CC) --shared $^ -o $@)

 do_compile_plugin_obj =				\
 	($(print_plugin_obj_compile)		\
 	$(CC) -c $(CFLAGS) -fPIC -o $@ $<)

 do_plugin_build =				\
 	($(print_plugin_build)			\
 	$(CC) $(CFLAGS) -shared -nostartfiles -o $@ $<)

 do_build_static_lib =				\
 	($(print_static_lib_build)		\
 	$(RM) $@;  $(AR) rcs $@ $^)


 define do_compile
 	$(print_compile)						\
 	$(CC) -c $(CFLAGS) $(EXT) $< -o $(obj)/$@;
 endef

 $(obj)/%.o: $(src)/%.c
 	$(Q)$(call do_compile)

 %.o: $(src)/%.c
 	$(Q)$(call do_compile)

 PEVENT_LIB_OBJS = event-parse.o trace-seq.o parse-filter.o parse-utils.o

 ALL_OBJS = $(PEVENT_LIB_OBJS)

 CMD_TARGETS = $(LIB_FILE)

 TARGETS = $(CMD_TARGETS)


 all: all_cmd

 all_cmd: $(CMD_TARGETS)

 libtraceevent.so: $(PEVENT_LIB_OBJS)
 	$(Q)$(do_compile_shared_library)

 libtraceevent.a: $(PEVENT_LIB_OBJS)
 	$(Q)$(do_build_static_lib)

 $(PEVENT_LIB_OBJS): %.o: $(src)/%.c TRACEEVENT-CFLAGS
 	$(Q)$(do_fpic_compile)

 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

 ## make deps

 all_objs := $(sort $(ALL_OBJS))
 all_deps := $(all_objs:%.o=.%.d)

 # let .d file also depends on the source and header files
 define check_deps
 		@set -e; $(RM) $@; \
 		$(CC) -MM $(CFLAGS) $< > $@.$$$$; \
 		sed 's,\($*\)\.o[ :]*,\1.o $@ : ,g' < $@.$$$$ > $@; \
 		$(RM) $@.$$$$
 endef

 $(gui_deps): ks_version.h
 $(non_gui_deps): tc_version.h

 $(all_deps): .%.d: $(src)/%.c
 	$(Q)$(call check_deps)

 $(all_objs) : %.o : .%.d

 dep_includes := $(wildcard $(all_deps))

 ifneq ($(dep_includes),)
  include $(dep_includes)
 endif

 ### Detect environment changes
 TRACK_CFLAGS = $(subst ','\'',$(CFLAGS)):$(ARCH):$(CROSS_COMPILE)

 TRACEEVENT-CFLAGS: force
 	@FLAGS='$(TRACK_CFLAGS)'; \
 	    if test x"$$FLAGS" != x"`cat TRACEEVENT-CFLAGS 2>/dev/null`" ; then \
 		echo 1>&2 "    * new build flags or cross compiler"; \
 		echo "$$FLAGS" >TRACEEVENT-CFLAGS; \
             fi

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

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

 define do_install
 	$(print_install)				\
 	if [ ! -d '$(DESTDIR_SQ)$2' ]; then		\
 		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$2';	\
 	fi;						\
 	$(INSTALL) $1 '$(DESTDIR_SQ)$2'
 endef

 install_lib: all_cmd install_plugins install_python
 	$(Q)$(call do_install,$(LIB_FILE),$(bindir_SQ))

 install: install_lib

 clean:
 	$(RM) *.o *~ $(TARGETS) *.a *.so $(VERSION_FILES) .*.d
 	$(RM) TRACEEVENT-CFLAGS tags TAGS

 endif # skip-makefile

 PHONY += force
 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)
	# 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)

	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))'

	prefix ?= /usr/local
	bindir_relative = bin
	bindir = $(prefix)/$(bindir_relative)
	man_dir = $(prefix)/share/man
	man_dir_SQ = '$(subst ','\'',$(man_dir))'
	html_install = $(prefix)/share/kernelshark/html
	html_install_SQ = '$(subst ','\'',$(html_install))'
	img_install = $(prefix)/share/kernelshark/html/images
	img_install_SQ = '$(subst ','\'',$(img_install))'

	export man_dir man_dir_SQ html_install html_install_SQ INSTALL
	export img_install img_install_SQ
	export DESTDIR DESTDIR_SQ

	# copy a bit from Linux kbuild

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

	ifeq ("$(origin O)", "command line")
	BUILD_OUTPUT := $(O)
	endif

	ifeq ($(BUILD_SRC),)
	ifneq ($(BUILD_OUTPUT),)

	define build_output
	$(if $(VERBOSE:1=),@)$(MAKE) -C $(BUILD_OUTPUT) \
	BUILD_SRC=$(CURDIR) -f $(CURDIR)/Makefile $1
	endef

	saved-output := $(BUILD_OUTPUT)
	BUILD_OUTPUT := $(shell cd $(BUILD_OUTPUT) && /bin/pwd)
	$(if $(BUILD_OUTPUT),, \
	$(error output directory "$(saved-output)" does not exist))

	all: sub-make

	gui: force
	$(call build_output, all_cmd)

	$(filter-out gui,$(MAKECMDGOALS)): sub-make

	sub-make: force
	$(call build_output, $(MAKECMDGOALS))


	# Leave processing to above invocation of make
	skip-makefile := 1

	endif # BUILD_OUTPUT
	endif # BUILD_SRC

	# We process the rest of the Makefile if this is the final invocation of make
	ifeq ($(skip-makefile),)

	srctree := $(if $(BUILD_SRC),$(BUILD_SRC),$(CURDIR))
	objtree := $(CURDIR)
	src := $(srctree)
	obj := $(objtree)

	export prefix bindir src obj

	# Shell quotes
	bindir_SQ = $(subst ','\'',$(bindir))
	bindir_relative_SQ = $(subst ','\'',$(bindir_relative))

	LIB_FILE = libtraceevent.a libtraceevent.so

	CONFIG_INCLUDES =
	CONFIG_LIBS =
	CONFIG_FLAGS =

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

	OBJ = $@
	N =

	export Q VERBOSE

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

	INCLUDES = -I. -I/usr/local/include $(CONFIG_INCLUDES)

	# Set compile option CFLAGS if not set elsewhere
	CFLAGS ?= -g -Wall

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

	ifeq ($(VERBOSE),1)
	Q =
	print_compile =
	print_app_build =
	print_fpic_compile =
	print_shared_lib_compile =
	print_plugin_obj_compile =
	print_plugin_build =
	print_install =
	else
	Q = @
	print_compile = echo ' CC '$(OBJ);
	print_app_build = echo ' BUILD '$(OBJ);
	print_fpic_compile = echo ' CC FPIC '$(OBJ);
	print_shared_lib_compile = echo ' BUILD SHARED LIB '$(OBJ);
	print_plugin_obj_compile = echo ' CC PLUGIN OBJ '$(OBJ);
	print_plugin_build = echo ' CC PLUGI '$(OBJ);
	print_static_lib_build = echo ' BUILD STATIC LIB '$(OBJ);
	print_install = echo ' INSTALL '$1' to $(DESTDIR_SQ)$2';
	endif

	do_fpic_compile = \
	($(print_fpic_compile) \
	$(CC) -c $(CFLAGS) $(EXT) -fPIC $< -o $@)

	do_app_build = \
	($(print_app_build) \
	$(CC) $^ -rdynamic -o $@ $(CONFIG_LIBS) $(LIBS))

	do_compile_shared_library = \
	($(print_shared_lib_compile) \
	$(CC) --shared $^ -o $@)

	do_compile_plugin_obj = \
	($(print_plugin_obj_compile) \
	$(CC) -c $(CFLAGS) -fPIC -o $@ $<)

	do_plugin_build = \
	($(print_plugin_build) \
	$(CC) $(CFLAGS) -shared -nostartfiles -o $@ $<)

	do_build_static_lib = \
	($(print_static_lib_build) \
	$(RM) $@; $(AR) rcs $@ $^)


	define do_compile
	$(print_compile) \
	$(CC) -c $(CFLAGS) $(EXT) $< -o $(obj)/$@;
	endef

	$(obj)/%.o: $(src)/%.c
	$(Q)$(call do_compile)

	%.o: $(src)/%.c
	$(Q)$(call do_compile)

	PEVENT_LIB_OBJS = event-parse.o trace-seq.o parse-filter.o parse-utils.o

	ALL_OBJS = $(PEVENT_LIB_OBJS)

	CMD_TARGETS = $(LIB_FILE)

	TARGETS = $(CMD_TARGETS)


	all: all_cmd

	all_cmd: $(CMD_TARGETS)

	libtraceevent.so: $(PEVENT_LIB_OBJS)
	$(Q)$(do_compile_shared_library)

	libtraceevent.a: $(PEVENT_LIB_OBJS)
	$(Q)$(do_build_static_lib)

	$(PEVENT_LIB_OBJS): %.o: $(src)/%.c TRACEEVENT-CFLAGS
	$(Q)$(do_fpic_compile)

	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

	## make deps

	all_objs := $(sort $(ALL_OBJS))
	all_deps := $(all_objs:%.o=.%.d)

	# let .d file also depends on the source and header files
	define check_deps
	@set -e; $(RM) $@; \
	$(CC) -MM $(CFLAGS) $< > $@.$$$$; \
	sed 's,\($\)\.o[ :],\1.o $@ : ,g' < $@.$$$$ > $@; \
	$(RM) $@.$$$$
	endef

	$(gui_deps): ks_version.h
	$(non_gui_deps): tc_version.h

	$(all_deps): .%.d: $(src)/%.c
	$(Q)$(call check_deps)

	$(all_objs) : %.o : .%.d

	dep_includes := $(wildcard $(all_deps))

	ifneq ($(dep_includes),)
	include $(dep_includes)
	endif

	### Detect environment changes
	TRACK_CFLAGS = $(subst ','\'',$(CFLAGS)):$(ARCH):$(CROSS_COMPILE)

	TRACEEVENT-CFLAGS: force
	@FLAGS='$(TRACK_CFLAGS)'; \
	if test x"$$FLAGS" != x"`cat TRACEEVENT-CFLAGS 2>/dev/null`" ; then \
	echo 1>&2 " * new build flags or cross compiler"; \
	echo "$$FLAGS" >TRACEEVENT-CFLAGS; \
	fi

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

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

	define do_install
	$(print_install) \
	if [ ! -d '$(DESTDIR_SQ)$2' ]; then \
	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$2'; \
	fi; \
	$(INSTALL) $1 '$(DESTDIR_SQ)$2'
	endef

	install_lib: all_cmd install_plugins install_python
	$(Q)$(call do_install,$(LIB_FILE),$(bindir_SQ))

	install: install_lib

	clean:
	$(RM) .o ~ $(TARGETS) .a .so $(VERSION_FILES) .*.d
	$(RM) TRACEEVENT-CFLAGS tags TAGS

	endif # skip-makefile

	PHONY += force
	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)