300 lines
7.6 KiB
Makefile
300 lines
7.6 KiB
Makefile
# trace-cmd version
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EP_VERSION = 1
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EP_PATCHLEVEL = 1
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EP_EXTRAVERSION = 0
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# file format version
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FILE_VERSION = 6
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MAKEFLAGS += --no-print-directory
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# Makefiles suck: This macro sets a default value of $(2) for the
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# variable named by $(1), unless the variable has been set by
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# environment or command line. This is necessary for CC and AR
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# because make sets default values, so the simpler ?= approach
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# won't work as expected.
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define allow-override
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$(if $(or $(findstring environment,$(origin $(1))),\
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$(findstring command line,$(origin $(1)))),,\
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$(eval $(1) = $(2)))
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endef
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# Allow setting CC and AR, or setting CROSS_COMPILE as a prefix.
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$(call allow-override,CC,$(CROSS_COMPILE)gcc)
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$(call allow-override,AR,$(CROSS_COMPILE)ar)
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$(call allow-override,NM,$(CROSS_COMPILE)nm)
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EXT = -std=gnu99
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INSTALL = install
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# Use DESTDIR for installing into a different root directory.
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# This is useful for building a package. The program will be
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# installed in this directory as if it was the root directory.
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# Then the build tool can move it later.
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DESTDIR ?=
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DESTDIR_SQ = '$(subst ','\'',$(DESTDIR))'
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LP64 := $(shell echo __LP64__ | ${CC} ${CFLAGS} -E -x c - | tail -n 1)
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ifeq ($(LP64), 1)
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libdir_relative = lib64
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else
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libdir_relative = lib
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endif
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prefix ?= /usr/local
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libdir = $(prefix)/$(libdir_relative)
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man_dir = $(prefix)/share/man
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man_dir_SQ = '$(subst ','\'',$(man_dir))'
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export man_dir man_dir_SQ INSTALL
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export DESTDIR DESTDIR_SQ
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set_plugin_dir := 1
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# Set plugin_dir to preffered global plugin location
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# If we install under $HOME directory we go under
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# $(HOME)/.traceevent/plugins
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#
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# We dont set PLUGIN_DIR in case we install under $HOME
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# directory, because by default the code looks under:
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# $(HOME)/.traceevent/plugins by default.
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#
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ifeq ($(plugin_dir),)
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ifeq ($(prefix),$(HOME))
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override plugin_dir = $(HOME)/.traceevent/plugins
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set_plugin_dir := 0
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else
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override plugin_dir = $(libdir)/traceevent/plugins
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endif
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endif
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ifeq ($(set_plugin_dir),1)
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PLUGIN_DIR = -DPLUGIN_DIR="$(plugin_dir)"
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PLUGIN_DIR_SQ = '$(subst ','\'',$(PLUGIN_DIR))'
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endif
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include ../../scripts/Makefile.include
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# copy a bit from Linux kbuild
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ifeq ("$(origin V)", "command line")
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VERBOSE = $(V)
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endif
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ifndef VERBOSE
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VERBOSE = 0
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endif
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ifeq ($(srctree),)
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srctree := $(patsubst %/,%,$(dir $(CURDIR)))
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srctree := $(patsubst %/,%,$(dir $(srctree)))
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srctree := $(patsubst %/,%,$(dir $(srctree)))
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#$(info Determined 'srctree' to be $(srctree))
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endif
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export prefix libdir src obj
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# Shell quotes
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libdir_SQ = $(subst ','\'',$(libdir))
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libdir_relative_SQ = $(subst ','\'',$(libdir_relative))
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plugin_dir_SQ = $(subst ','\'',$(plugin_dir))
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CONFIG_INCLUDES =
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CONFIG_LIBS =
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CONFIG_FLAGS =
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VERSION = $(EP_VERSION)
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PATCHLEVEL = $(EP_PATCHLEVEL)
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EXTRAVERSION = $(EP_EXTRAVERSION)
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OBJ = $@
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N =
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EVENT_PARSE_VERSION = $(EP_VERSION).$(EP_PATCHLEVEL).$(EP_EXTRAVERSION)
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LIB_TARGET = libtraceevent.a libtraceevent.so.$(EVENT_PARSE_VERSION)
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LIB_INSTALL = libtraceevent.a libtraceevent.so*
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INCLUDES = -I. -I $(srctree)/tools/include $(CONFIG_INCLUDES)
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# Set compile option CFLAGS
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ifdef EXTRA_CFLAGS
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CFLAGS := $(EXTRA_CFLAGS)
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else
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CFLAGS := -g -Wall
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endif
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# Append required CFLAGS
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override CFLAGS += -fPIC
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override CFLAGS += $(CONFIG_FLAGS) $(INCLUDES) $(PLUGIN_DIR_SQ)
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override CFLAGS += $(udis86-flags) -D_GNU_SOURCE
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ifeq ($(VERBOSE),1)
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Q =
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else
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Q = @
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endif
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# Disable command line variables (CFLAGS) override from top
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# level Makefile (perf), otherwise build Makefile will get
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# the same command line setup.
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MAKEOVERRIDES=
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export srctree OUTPUT CC LD CFLAGS V
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build := -f $(srctree)/tools/build/Makefile.build dir=. obj
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PLUGINS = plugin_jbd2.so
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PLUGINS += plugin_hrtimer.so
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PLUGINS += plugin_kmem.so
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PLUGINS += plugin_kvm.so
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PLUGINS += plugin_mac80211.so
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PLUGINS += plugin_sched_switch.so
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PLUGINS += plugin_function.so
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PLUGINS += plugin_xen.so
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PLUGINS += plugin_scsi.so
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PLUGINS += plugin_cfg80211.so
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PLUGINS := $(addprefix $(OUTPUT),$(PLUGINS))
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PLUGINS_IN := $(PLUGINS:.so=-in.o)
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TE_IN := $(OUTPUT)libtraceevent-in.o
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LIB_TARGET := $(addprefix $(OUTPUT),$(LIB_TARGET))
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DYNAMIC_LIST_FILE := $(OUTPUT)libtraceevent-dynamic-list
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CMD_TARGETS = $(LIB_TARGET) $(PLUGINS) $(DYNAMIC_LIST_FILE)
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TARGETS = $(CMD_TARGETS)
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all: all_cmd
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all_cmd: $(CMD_TARGETS)
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$(TE_IN): force
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$(Q)$(MAKE) $(build)=libtraceevent
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$(OUTPUT)libtraceevent.so.$(EVENT_PARSE_VERSION): $(TE_IN)
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$(QUIET_LINK)$(CC) --shared $^ -Wl,-soname,libtraceevent.so.$(EP_VERSION) -o $@
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@ln -sf $(@F) $(OUTPUT)libtraceevent.so
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@ln -sf $(@F) $(OUTPUT)libtraceevent.so.$(EP_VERSION)
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$(OUTPUT)libtraceevent.a: $(TE_IN)
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$(QUIET_LINK)$(RM) $@; $(AR) rcs $@ $^
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$(OUTPUT)libtraceevent-dynamic-list: $(PLUGINS)
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$(QUIET_GEN)$(call do_generate_dynamic_list_file, $(PLUGINS), $@)
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plugins: $(PLUGINS)
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__plugin_obj = $(notdir $@)
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plugin_obj = $(__plugin_obj:-in.o=)
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$(PLUGINS_IN): force
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$(Q)$(MAKE) $(build)=$(plugin_obj)
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$(OUTPUT)%.so: $(OUTPUT)%-in.o
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$(QUIET_LINK)$(CC) $(CFLAGS) -shared -nostartfiles -o $@ $^
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define make_version.h
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(echo '/* This file is automatically generated. Do not modify. */'; \
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echo \#define VERSION_CODE $(shell \
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expr $(VERSION) \* 256 + $(PATCHLEVEL)); \
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echo '#define EXTRAVERSION ' $(EXTRAVERSION); \
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echo '#define VERSION_STRING "'$(VERSION).$(PATCHLEVEL).$(EXTRAVERSION)'"'; \
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echo '#define FILE_VERSION '$(FILE_VERSION); \
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) > $1
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endef
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define update_version.h
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($(call make_version.h, $@.tmp); \
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if [ -r $@ ] && cmp -s $@ $@.tmp; then \
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rm -f $@.tmp; \
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else \
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echo ' UPDATE $@'; \
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mv -f $@.tmp $@; \
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fi);
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endef
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ep_version.h: force
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$(Q)$(N)$(call update_version.h)
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VERSION_FILES = ep_version.h
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define update_dir
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(echo $1 > $@.tmp; \
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if [ -r $@ ] && cmp -s $@ $@.tmp; then \
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rm -f $@.tmp; \
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else \
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echo ' UPDATE $@'; \
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mv -f $@.tmp $@; \
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fi);
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endef
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tags: force
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$(RM) tags
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find . -name '*.[ch]' | xargs ctags --extra=+f --c-kinds=+px \
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--regex-c++='/_PE\(([^,)]*).*/PEVENT_ERRNO__\1/'
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TAGS: force
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$(RM) TAGS
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find . -name '*.[ch]' | xargs etags \
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--regex='/_PE(\([^,)]*\).*/PEVENT_ERRNO__\1/'
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define do_install_mkdir
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if [ ! -d '$(DESTDIR_SQ)$1' ]; then \
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$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$1'; \
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fi
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endef
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define do_install
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$(call do_install_mkdir,$2); \
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$(INSTALL) $(if $3,-m $3,) $1 '$(DESTDIR_SQ)$2'
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endef
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define do_install_plugins
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for plugin in $1; do \
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$(call do_install,$$plugin,$(plugin_dir_SQ)); \
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done
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endef
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define do_generate_dynamic_list_file
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symbol_type=`$(NM) -u -D $1 | awk 'NF>1 {print $$1}' | \
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xargs echo "U W w" | tr ' ' '\n' | sort -u | xargs echo`;\
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if [ "$$symbol_type" = "U W w" ];then \
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(echo '{'; \
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$(NM) -u -D $1 | awk 'NF>1 {print "\t"$$2";"}' | sort -u;\
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echo '};'; \
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) > $2; \
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else \
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(echo Either missing one of [$1] or bad version of $(NM)) 1>&2;\
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fi
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endef
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install_lib: all_cmd install_plugins
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$(call QUIET_INSTALL, $(LIB_TARGET)) \
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$(call do_install_mkdir,$(libdir_SQ)); \
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cp -fpR $(LIB_INSTALL) $(DESTDIR)$(libdir_SQ)
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install_plugins: $(PLUGINS)
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$(call QUIET_INSTALL, trace_plugins) \
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$(call do_install_plugins, $(PLUGINS))
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install_headers:
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$(call QUIET_INSTALL, headers) \
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$(call do_install,event-parse.h,$(prefix)/include/traceevent,644); \
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$(call do_install,event-utils.h,$(prefix)/include/traceevent,644); \
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$(call do_install,kbuffer.h,$(prefix)/include/traceevent,644)
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install: install_lib
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clean:
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$(call QUIET_CLEAN, libtraceevent) \
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$(RM) *.o *~ $(TARGETS) *.a *.so $(VERSION_FILES) .*.d .*.cmd \
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$(RM) TRACEEVENT-CFLAGS tags TAGS
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PHONY += force plugins
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force:
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# Declare the contents of the .PHONY variable as phony. We keep that
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# information in a variable so we can use it in if_changed and friends.
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.PHONY: $(PHONY)
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