1# trace-cmd version 2EP_VERSION = 1 3EP_PATCHLEVEL = 1 4EP_EXTRAVERSION = 0 5 6# file format version 7FILE_VERSION = 6 8 9MAKEFLAGS += --no-print-directory 10 11 12# Makefiles suck: This macro sets a default value of $(2) for the 13# variable named by $(1), unless the variable has been set by 14# environment or command line. This is necessary for CC and AR 15# because make sets default values, so the simpler ?= approach 16# won't work as expected. 17define allow-override 18 $(if $(or $(findstring environment,$(origin $(1))),\ 19 $(findstring command line,$(origin $(1)))),,\ 20 $(eval $(1) = $(2))) 21endef 22 23# Allow setting CC and AR, or setting CROSS_COMPILE as a prefix. 24$(call allow-override,CC,$(CROSS_COMPILE)gcc) 25$(call allow-override,AR,$(CROSS_COMPILE)ar) 26$(call allow-override,NM,$(CROSS_COMPILE)nm) 27 28EXT = -std=gnu99 29INSTALL = install 30 31# Use DESTDIR for installing into a different root directory. 32# This is useful for building a package. The program will be 33# installed in this directory as if it was the root directory. 34# Then the build tool can move it later. 35DESTDIR ?= 36DESTDIR_SQ = '$(subst ','\'',$(DESTDIR))' 37 38LP64 := $(shell echo __LP64__ | ${CC} ${CFLAGS} -E -x c - | tail -n 1) 39ifeq ($(LP64), 1) 40 libdir_relative = lib64 41else 42 libdir_relative = lib 43endif 44 45prefix ?= /usr/local 46libdir = $(prefix)/$(libdir_relative) 47man_dir = $(prefix)/share/man 48man_dir_SQ = '$(subst ','\'',$(man_dir))' 49 50export man_dir man_dir_SQ INSTALL 51export DESTDIR DESTDIR_SQ 52 53set_plugin_dir := 1 54 55# Set plugin_dir to preffered global plugin location 56# If we install under $HOME directory we go under 57# $(HOME)/.local/lib/traceevent/plugins 58# 59# We dont set PLUGIN_DIR in case we install under $HOME 60# directory, because by default the code looks under: 61# $(HOME)/.local/lib/traceevent/plugins by default. 62# 63ifeq ($(plugin_dir),) 64ifeq ($(prefix),$(HOME)) 65override plugin_dir = $(HOME)/.local/lib/traceevent/plugins 66set_plugin_dir := 0 67else 68override plugin_dir = $(libdir)/traceevent/plugins 69endif 70endif 71 72ifeq ($(set_plugin_dir),1) 73PLUGIN_DIR = -DPLUGIN_DIR="$(plugin_dir)" 74PLUGIN_DIR_SQ = '$(subst ','\'',$(PLUGIN_DIR))' 75endif 76 77include ../../scripts/Makefile.include 78 79# copy a bit from Linux kbuild 80 81ifeq ("$(origin V)", "command line") 82 VERBOSE = $(V) 83endif 84ifndef VERBOSE 85 VERBOSE = 0 86endif 87 88ifeq ($(srctree),) 89srctree := $(patsubst %/,%,$(dir $(shell pwd))) 90srctree := $(patsubst %/,%,$(dir $(srctree))) 91srctree := $(patsubst %/,%,$(dir $(srctree))) 92#$(info Determined 'srctree' to be $(srctree)) 93endif 94 95export prefix libdir src obj 96 97# Shell quotes 98libdir_SQ = $(subst ','\'',$(libdir)) 99libdir_relative_SQ = $(subst ','\'',$(libdir_relative)) 100plugin_dir_SQ = $(subst ','\'',$(plugin_dir)) 101 102LIB_FILE = libtraceevent.a libtraceevent.so 103 104CONFIG_INCLUDES = 105CONFIG_LIBS = 106CONFIG_FLAGS = 107 108VERSION = $(EP_VERSION) 109PATCHLEVEL = $(EP_PATCHLEVEL) 110EXTRAVERSION = $(EP_EXTRAVERSION) 111 112OBJ = $@ 113N = 114 115EVENT_PARSE_VERSION = $(EP_VERSION).$(EP_PATCHLEVEL).$(EP_EXTRAVERSION) 116 117INCLUDES = -I. -I $(srctree)/tools/include $(CONFIG_INCLUDES) 118 119# Set compile option CFLAGS 120ifdef EXTRA_CFLAGS 121 CFLAGS := $(EXTRA_CFLAGS) 122else 123 CFLAGS := -g -Wall 124endif 125 126# Append required CFLAGS 127override CFLAGS += -fPIC 128override CFLAGS += $(CONFIG_FLAGS) $(INCLUDES) $(PLUGIN_DIR_SQ) 129override CFLAGS += $(udis86-flags) -D_GNU_SOURCE 130 131ifeq ($(VERBOSE),1) 132 Q = 133else 134 Q = @ 135endif 136 137# Disable command line variables (CFLAGS) overide from top 138# level Makefile (perf), otherwise build Makefile will get 139# the same command line setup. 140MAKEOVERRIDES= 141 142export srctree OUTPUT CC LD CFLAGS V 143build := -f $(srctree)/tools/build/Makefile.build dir=. obj 144 145PLUGINS = plugin_jbd2.so 146PLUGINS += plugin_hrtimer.so 147PLUGINS += plugin_kmem.so 148PLUGINS += plugin_kvm.so 149PLUGINS += plugin_mac80211.so 150PLUGINS += plugin_sched_switch.so 151PLUGINS += plugin_function.so 152PLUGINS += plugin_xen.so 153PLUGINS += plugin_scsi.so 154PLUGINS += plugin_cfg80211.so 155 156PLUGINS := $(addprefix $(OUTPUT),$(PLUGINS)) 157PLUGINS_IN := $(PLUGINS:.so=-in.o) 158 159TE_IN := $(OUTPUT)libtraceevent-in.o 160LIB_FILE := $(addprefix $(OUTPUT),$(LIB_FILE)) 161DYNAMIC_LIST_FILE := $(OUTPUT)libtraceevent-dynamic-list 162 163CMD_TARGETS = $(LIB_FILE) $(PLUGINS) $(DYNAMIC_LIST_FILE) 164 165TARGETS = $(CMD_TARGETS) 166 167all: all_cmd 168 169all_cmd: $(CMD_TARGETS) 170 171$(TE_IN): force 172 $(Q)$(MAKE) $(build)=libtraceevent 173 174$(OUTPUT)libtraceevent.so: $(TE_IN) 175 $(QUIET_LINK)$(CC) --shared $^ -o $@ 176 177$(OUTPUT)libtraceevent.a: $(TE_IN) 178 $(QUIET_LINK)$(RM) $@; $(AR) rcs $@ $^ 179 180$(OUTPUT)libtraceevent-dynamic-list: $(PLUGINS) 181 $(QUIET_GEN)$(call do_generate_dynamic_list_file, $(PLUGINS), $@) 182 183plugins: $(PLUGINS) 184 185__plugin_obj = $(notdir $@) 186 plugin_obj = $(__plugin_obj:-in.o=) 187 188$(PLUGINS_IN): force 189 $(Q)$(MAKE) $(build)=$(plugin_obj) 190 191$(OUTPUT)%.so: $(OUTPUT)%-in.o 192 $(QUIET_LINK)$(CC) $(CFLAGS) -shared -nostartfiles -o $@ $^ 193 194define make_version.h 195 (echo '/* This file is automatically generated. Do not modify. */'; \ 196 echo \#define VERSION_CODE $(shell \ 197 expr $(VERSION) \* 256 + $(PATCHLEVEL)); \ 198 echo '#define EXTRAVERSION ' $(EXTRAVERSION); \ 199 echo '#define VERSION_STRING "'$(VERSION).$(PATCHLEVEL).$(EXTRAVERSION)'"'; \ 200 echo '#define FILE_VERSION '$(FILE_VERSION); \ 201 ) > $1 202endef 203 204define update_version.h 205 ($(call make_version.h, $@.tmp); \ 206 if [ -r $@ ] && cmp -s $@ $@.tmp; then \ 207 rm -f $@.tmp; \ 208 else \ 209 echo ' UPDATE $@'; \ 210 mv -f $@.tmp $@; \ 211 fi); 212endef 213 214ep_version.h: force 215 $(Q)$(N)$(call update_version.h) 216 217VERSION_FILES = ep_version.h 218 219define update_dir 220 (echo $1 > $@.tmp; \ 221 if [ -r $@ ] && cmp -s $@ $@.tmp; then \ 222 rm -f $@.tmp; \ 223 else \ 224 echo ' UPDATE $@'; \ 225 mv -f $@.tmp $@; \ 226 fi); 227endef 228 229tags: force 230 $(RM) tags 231 find . -name '*.[ch]' | xargs ctags --extra=+f --c-kinds=+px \ 232 --regex-c++='/_PE\(([^,)]*).*/PEVENT_ERRNO__\1/' 233 234TAGS: force 235 $(RM) TAGS 236 find . -name '*.[ch]' | xargs etags \ 237 --regex='/_PE(\([^,)]*\).*/PEVENT_ERRNO__\1/' 238 239define do_install 240 if [ ! -d '$(DESTDIR_SQ)$2' ]; then \ 241 $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$2'; \ 242 fi; \ 243 $(INSTALL) $1 '$(DESTDIR_SQ)$2' 244endef 245 246define do_install_plugins 247 for plugin in $1; do \ 248 $(call do_install,$$plugin,$(plugin_dir_SQ)); \ 249 done 250endef 251 252define do_generate_dynamic_list_file 253 (echo '{'; \ 254 $(NM) -u -D $1 | awk 'NF>1 {print "\t"$$2";"}' | sort -u; \ 255 echo '};'; \ 256 ) > $2 257endef 258 259install_lib: all_cmd install_plugins 260 $(call QUIET_INSTALL, $(LIB_FILE)) \ 261 $(call do_install,$(LIB_FILE),$(libdir_SQ)) 262 263install_plugins: $(PLUGINS) 264 $(call QUIET_INSTALL, trace_plugins) \ 265 $(call do_install_plugins, $(PLUGINS)) 266 267install: install_lib 268 269clean: 270 $(call QUIET_CLEAN, libtraceevent) \ 271 $(RM) *.o *~ $(TARGETS) *.a *.so $(VERSION_FILES) .*.d .*.cmd \ 272 $(RM) TRACEEVENT-CFLAGS tags TAGS 273 274PHONY += force plugins 275force: 276 277# Declare the contents of the .PHONY variable as phony. We keep that 278# information in a variable so we can use it in if_changed and friends. 279.PHONY: $(PHONY) 280