226 lines
		
	
	
		
			6.1 KiB
		
	
	
	
		
			Makefile
		
	
	
	
	
	
			
		
		
	
	
			226 lines
		
	
	
		
			6.1 KiB
		
	
	
	
		
			Makefile
		
	
	
	
	
	
| # SPDX-License-Identifier: GPL-2.0
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| 
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| #MAKEFLAGS += --no-print-directory
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| 
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| 
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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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| 
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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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| $(call allow-override,PKG_CONFIG,pkg-config)
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| 
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| EXT = -std=gnu99
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| INSTALL = install
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| 
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| # Use DESTDIR for installing into a different root directory.
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| # This is useful for building a package. The program will be
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| # installed in this directory as if it was the root directory.
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| # Then the build tool can move it later.
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| DESTDIR ?=
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| DESTDIR_SQ = '$(subst ','\'',$(DESTDIR))'
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| 
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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_tmp = lib64
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| else
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|   libdir_relative_tmp = lib
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| endif
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| 
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| libdir_relative ?= $(libdir_relative_tmp)
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| prefix ?= /usr/local
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| libdir = $(prefix)/$(libdir_relative)
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| 
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| set_plugin_dir := 1
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| 
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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)/.local/lib/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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| # $(HOME)/.local/lib/traceevent/plugins by default.
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| #
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| ifeq ($(plugin_dir),)
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| ifeq ($(prefix),$(HOME))
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| override plugin_dir = $(HOME)/.local/lib/traceevent/plugins
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| set_plugin_dir := 0
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| else
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| override plugin_dir = $(libdir)/traceevent/plugins
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| endif
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| endif
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| 
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| ifeq ($(set_plugin_dir),1)
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| PLUGIN_DIR = -DPLUGIN_DIR="$(plugin_dir)"
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| PLUGIN_DIR_SQ = '$(subst ','\'',$(PLUGIN_DIR))'
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| endif
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| 
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| include ../../../scripts/Makefile.include
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| 
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| # copy a bit from Linux kbuild
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| 
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| ifeq ("$(origin V)", "command line")
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|   VERBOSE = $(V)
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| endif
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| ifndef VERBOSE
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|   VERBOSE = 0
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| endif
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| 
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| ifeq ($(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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| srctree := $(patsubst %/,%,$(dir $(srctree)))
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| #$(info Determined 'srctree' to be $(srctree))
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| endif
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| 
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| export prefix libdir src obj
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| 
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| # Shell quotes
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| plugin_dir_SQ = $(subst ','\'',$(plugin_dir))
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| 
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| CONFIG_INCLUDES =
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| CONFIG_LIBS    =
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| CONFIG_FLAGS   =
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| 
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| OBJ            = $@
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| N              =
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| 
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| INCLUDES = -I. -I.. -I $(srctree)/tools/include $(CONFIG_INCLUDES)
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| 
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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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| 
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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 += $(udis86-flags) -D_GNU_SOURCE
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| 
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| ifeq ($(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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| 
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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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| 
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| export srctree OUTPUT CC LD CFLAGS V
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| 
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| build := -f $(srctree)/tools/build/Makefile.build dir=. obj
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| 
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| DYNAMIC_LIST_FILE := $(OUTPUT)libtraceevent-dynamic-list
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| 
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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_futex.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 += plugin_tlb.so
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| 
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| PLUGINS    := $(addprefix $(OUTPUT),$(PLUGINS))
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| PLUGINS_IN := $(PLUGINS:.so=-in.o)
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| 
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| plugins: $(PLUGINS) $(DYNAMIC_LIST_FILE)
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| 
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| __plugin_obj = $(notdir $@)
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|   plugin_obj = $(__plugin_obj:-in.o=)
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| 
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| $(PLUGINS_IN): force
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| 	$(Q)$(MAKE) $(build)=$(plugin_obj)
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| 
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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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| 
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| $(OUTPUT)%.so: $(OUTPUT)%-in.o
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| 	$(QUIET_LINK)$(CC) $(CFLAGS) -shared $(LDFLAGS) -nostartfiles -o $@ $^
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| 
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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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| 
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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\(([^,)]*).*/TEP_ERRNO__\1/'
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| 
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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(\([^,)]*\).*/TEP_ERRNO__\1/'
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| 
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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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| 
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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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| 
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| define do_install_plugins
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|        for plugin in $1; do                            \
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|          $(call do_install,$$plugin,$(plugin_dir_SQ)); \
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|        done
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| endef
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| 
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| define do_generate_dynamic_list_file
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| 	symbol_type=`$(NM) -u -D $1 | awk 'NF>1 {print $$1}' | \
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| 	xargs echo "U w W" | tr 'w ' 'W\n' | sort -u | xargs echo`;\
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| 	if [ "$$symbol_type" = "U W" ];then				\
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| 		(echo '{';                                              \
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| 		$(NM) -u -D $1 | awk 'NF>1 {sub("@.*", "", $$2); 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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| 
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| install: $(PLUGINS)
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| 	$(call QUIET_INSTALL, trace_plugins) \
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| 	$(call do_install_plugins, $(PLUGINS))
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| 
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| clean:
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| 	$(call QUIET_CLEAN, trace_plugins) \
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| 		$(RM) *.o *~ $(TARGETS) *.a *.so $(VERSION_FILES) .*.d .*.cmd; \
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| 		$(RM) $(OUTPUT)libtraceevent-dynamic-list \
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| 		$(RM) TRACEEVENT-CFLAGS tags TAGS;
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| 
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| PHONY += force plugins
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| force:
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| 
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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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