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# trace-cmd versionEP_VERSION = 1EP_PATCHLEVEL = 1EP_EXTRAVERSION = 0 # file format versionFILE_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,$(CROSS_COMPILE)nm) EXT = -std=gnu99INSTALL = install # Use DESTDIR for installing into a different root directory.# This is useful for building a package. The program will be# installed in this directory as if it was the root directory.# Then the build tool can move it later.DESTDIR ?=DESTDIR_SQ = '$(subst ','\'',$(DESTDIR))' LP64 := $(shell echo __LP64__ | ${CC} ${CFLAGS} -E -x c - | tail -n 1)ifeq ($(LP64), 1)  libdir_relative = lib64else  libdir_relative = libendif prefix ?= /usr/locallibdir = $(prefix)/$(libdir_relative)man_dir = $(prefix)/share/manman_dir_SQ = '$(subst ','\'',$(man_dir))' export man_dir man_dir_SQ INSTALLexport DESTDIR DESTDIR_SQ set_plugin_dir := 1 # Set plugin_dir to preffered global plugin location# If we install under $HOME directory we go under# $(HOME)/.traceevent/plugins## We dont set PLUGIN_DIR in case we install under $HOME# directory, because by default the code looks under:# $(HOME)/.traceevent/plugins by default.#ifeq ($(plugin_dir),)ifeq ($(prefix),$(HOME))override plugin_dir = $(HOME)/.traceevent/pluginsset_plugin_dir := 0elseoverride plugin_dir = $(libdir)/traceevent/pluginsendifendif ifeq ($(set_plugin_dir),1)PLUGIN_DIR = -DPLUGIN_DIR="$(plugin_dir)"PLUGIN_DIR_SQ = '$(subst ','\'',$(PLUGIN_DIR))'endif include ../../scripts/Makefile.include # copy a bit from Linux kbuild ifeq ("$(origin V)", "command line")  VERBOSE = $(V)endififndef VERBOSE  VERBOSE = 0endif ifeq ($(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 quoteslibdir_SQ = $(subst ','\'',$(libdir))libdir_relative_SQ = $(subst ','\'',$(libdir_relative))plugin_dir_SQ = $(subst ','\'',$(plugin_dir)) 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* INCLUDES = -I. -I $(srctree)/tools/include $(CONFIG_INCLUDES) # Set compile option CFLAGSifdef EXTRA_CFLAGS  CFLAGS := $(EXTRA_CFLAGS)else  CFLAGS := -g -Wallendif # Append required CFLAGSoverride CFLAGS += -fPICoverride 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 Vbuild := -f $(srctree)/tools/build/Makefile.build dir=. obj PLUGINS  = plugin_jbd2.soPLUGINS += plugin_hrtimer.soPLUGINS += plugin_kmem.soPLUGINS += plugin_kvm.soPLUGINS += plugin_mac80211.soPLUGINS += plugin_sched_switch.soPLUGINS += plugin_function.soPLUGINS += plugin_xen.soPLUGINS += plugin_scsi.soPLUGINS += plugin_cfg80211.so PLUGINS    := $(addprefix $(OUTPUT),$(PLUGINS))PLUGINS_IN := $(PLUGINS:.so=-in.o) TE_IN      := $(OUTPUT)libtraceevent-in.oLIB_TARGET := $(addprefix $(OUTPUT),$(LIB_TARGET))DYNAMIC_LIST_FILE := $(OUTPUT)libtraceevent-dynamic-list CMD_TARGETS = $(LIB_TARGET) $(PLUGINS) $(DYNAMIC_LIST_FILE) TARGETS = $(CMD_TARGETS) all: all_cmd all_cmd: $(CMD_TARGETS) $(TE_IN): force	$(Q)$(MAKE) $(build)=libtraceevent $(OUTPUT)libtraceevent.so.$(EVENT_PARSE_VERSION): $(TE_IN)	$(QUIET_LINK)$(CC) --shared $^ -Wl,-soname,libtraceevent.so.$(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)libtraceevent-dynamic-list: $(PLUGINS)	$(QUIET_GEN)$(call do_generate_dynamic_list_file, $(PLUGINS), $@) plugins: $(PLUGINS) __plugin_obj = $(notdir $@)  plugin_obj = $(__plugin_obj:-in.o=) $(PLUGINS_IN): force	$(Q)$(MAKE) $(build)=$(plugin_obj) $(OUTPUT)%.so: $(OUTPUT)%-in.o	$(QUIET_LINK)$(CC) $(CFLAGS) -shared -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);					\  ) > $1endef define update_version.h  ($(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\(([^,)]*).*/PEVENT_ERRNO__\1/' TAGS:	force	$(RM) TAGS	find . -name '*.[ch]' | xargs etags \	--regex='/_PE(\([^,)]*\).*/PEVENT_ERRNO__\1/' define do_install_mkdir	if [ ! -d '$(DESTDIR_SQ)$1' ]; then		\		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$1';	\	fiendef define do_install	$(call do_install_mkdir,$2);			\	$(INSTALL) $(if $3,-m $3,) $1 '$(DESTDIR_SQ)$2'endef define do_install_plugins	for plugin in $1; do				\	  $(call do_install,$$plugin,$(plugin_dir_SQ));	\	doneendef define do_generate_dynamic_list_file	symbol_type=`$(NM) -u -D $1 | awk 'NF>1 {print $$1}' | \	xargs echo "U W w" | tr ' ' '\n' | sort -u | xargs echo`;\	if [ "$$symbol_type" = "U W w" ];then				\		(echo '{';						\		$(NM) -u -D $1 | awk 'NF>1 {print "\t"$$2";"}' | sort -u;\		echo '};';						\		) > $2;							\	else								\		(echo Either missing one of [$1] or bad version of $(NM)) 1>&2;\	fiendef install_lib: all_cmd install_plugins	$(call QUIET_INSTALL, $(LIB_TARGET)) \		$(call do_install_mkdir,$(libdir_SQ)); \		cp -fpR $(LIB_INSTALL) $(DESTDIR)$(libdir_SQ) install_plugins: $(PLUGINS)	$(call QUIET_INSTALL, trace_plugins) \		$(call do_install_plugins, $(PLUGINS)) install_headers:	$(call QUIET_INSTALL, headers) \		$(call do_install,event-parse.h,$(prefix)/include/traceevent,644); \		$(call do_install,event-utils.h,$(prefix)/include/traceevent,644); \		$(call do_install,kbuffer.h,$(prefix)/include/traceevent,644) install: install_lib clean:	$(call QUIET_CLEAN, libtraceevent) \		$(RM) *.o *~ $(TARGETS) *.a *.so $(VERSION_FILES) .*.d .*.cmd \		$(RM) TRACEEVENT-CFLAGS tags TAGS PHONY += force pluginsforce: # 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)