tools/lib/traceevent/Makefile

   1 # trace-cmd version
   2 EP_VERSION = 1
   3 EP_PATCHLEVEL = 1
   4 EP_EXTRAVERSION = 0
   5
   6 # file format version
   7 FILE_VERSION = 6
   8
   9 MAKEFLAGS += --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.
  17 define allow-override
  18   $(if $(or $(findstring environment,$(origin $(1))),\
  19             $(findstring command line,$(origin $(1)))),,\
  20     $(eval $(1) = $(2)))
  21 endef
  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
  27 EXT = -std=gnu99
  28 INSTALL = install
  29
  30 # Use DESTDIR for installing into a different root directory.
  31 # This is useful for building a package. The program will be
  32 # installed in this directory as if it was the root directory.
  33 # Then the build tool can move it later.
  34 DESTDIR ?=
  35 DESTDIR_SQ = '$(subst ','\'',$(DESTDIR))'
  36
  37 prefix ?= /usr/local
  38 bindir_relative = bin
  39 bindir = $(prefix)/$(bindir_relative)
  40 man_dir = $(prefix)/share/man
  41 man_dir_SQ = '$(subst ','\'',$(man_dir))'
  42
  43 export man_dir man_dir_SQ INSTALL
  44 export DESTDIR DESTDIR_SQ
  45
  46 set_plugin_dir := 1
  47
  48 # Set plugin_dir to preffered global plugin location
  49 # If we install under $HOME directory we go under
  50 # $(HOME)/.traceevent/plugins
  51 #
  52 # We dont set PLUGIN_DIR in case we install under $HOME
  53 # directory, because by default the code looks under:
  54 # $(HOME)/.traceevent/plugins by default.
  55 #
  56 ifeq ($(plugin_dir),)
  57 ifeq ($(prefix),$(HOME))
  58 override plugin_dir = $(HOME)/.traceevent/plugins
  59 set_plugin_dir := 0
  60 else
  61 override plugin_dir = $(prefix)/lib/traceevent/plugins
  62 endif
  63 endif
  64
  65 ifeq ($(set_plugin_dir),1)
  66 PLUGIN_DIR = -DPLUGIN_DIR="$(DESTDIR)/$(plugin_dir)"
  67 PLUGIN_DIR_SQ = '$(subst ','\'',$(PLUGIN_DIR))'
  68 endif
  69
  70 include $(if $(BUILD_SRC),$(BUILD_SRC)/)../../scripts/Makefile.include
  71
  72 # copy a bit from Linux kbuild
  73
  74 ifeq ("$(origin V)", "command line")
  75   VERBOSE = $(V)
  76 endif
  77 ifndef VERBOSE
  78   VERBOSE = 0
  79 endif
  80
  81 ifeq ("$(origin O)", "command line")
  82   BUILD_OUTPUT := $(O)
  83 endif
  84
  85 ifeq ($(BUILD_SRC),)
  86 ifneq ($(OUTPUT),)
  87
  88 define build_output
  89   $(if $(VERBOSE:1=),@)+$(MAKE) -C $(OUTPUT) \
  90   BUILD_SRC=$(CURDIR)/ -f $(CURDIR)/Makefile $1
  91 endef
  92
  93 all: sub-make
  94
  95 $(MAKECMDGOALS): sub-make
  96
  97 sub-make: force
  98         $(call build_output, $(MAKECMDGOALS))
  99
 100
 101 # Leave processing to above invocation of make
 102 skip-makefile := 1
 103
 104 endif # OUTPUT
 105 endif # BUILD_SRC
 106
 107 # We process the rest of the Makefile if this is the final invocation of make
 108 ifeq ($(skip-makefile),)
 109
 110 srctree         := $(if $(BUILD_SRC),$(BUILD_SRC),$(CURDIR))
 111 objtree         := $(CURDIR)
 112 src             := $(srctree)
 113 obj             := $(objtree)
 114
 115 export prefix bindir src obj
 116
 117 # Shell quotes
 118 bindir_SQ = $(subst ','\'',$(bindir))
 119 bindir_relative_SQ = $(subst ','\'',$(bindir_relative))
 120 plugin_dir_SQ = $(subst ','\'',$(plugin_dir))
 121
 122 LIB_FILE = libtraceevent.a libtraceevent.so
 123
 124 CONFIG_INCLUDES =
 125 CONFIG_LIBS     =
 126 CONFIG_FLAGS    =
 127
 128 VERSION         = $(EP_VERSION)
 129 PATCHLEVEL      = $(EP_PATCHLEVEL)
 130 EXTRAVERSION    = $(EP_EXTRAVERSION)
 131
 132 OBJ             = $@
 133 N               =
 134
 135 export Q VERBOSE
 136
 137 EVENT_PARSE_VERSION = $(EP_VERSION).$(EP_PATCHLEVEL).$(EP_EXTRAVERSION)
 138
 139 INCLUDES = -I. -I $(srctree)/../../include $(CONFIG_INCLUDES)
 140
 141 # Set compile option CFLAGS if not set elsewhere
 142 CFLAGS ?= -g -Wall
 143
 144 # Append required CFLAGS
 145 override CFLAGS += $(CONFIG_FLAGS) $(INCLUDES) $(PLUGIN_DIR_SQ)
 146 override CFLAGS += $(udis86-flags) -D_GNU_SOURCE
 147
 148 ifeq ($(VERBOSE),1)
 149   Q =
 150 else
 151   Q = @
 152 endif
 153
 154 do_compile_shared_library =                     \
 155         ($(print_shared_lib_compile)            \
 156         $(CC) --shared $^ -o $@)
 157
 158 do_plugin_build =                               \
 159         ($(print_plugin_build)                  \
 160         $(CC) $(CFLAGS) -shared -nostartfiles -o $@ $<)
 161
 162 do_build_static_lib =                           \
 163         ($(print_static_lib_build)              \
 164         $(RM) $@;  $(AR) rcs $@ $^)
 165
 166
 167 do_compile = $(QUIET_CC)$(CC) -c $(CFLAGS) $(EXT) $< -o $(obj)/$@;
 168
 169 $(obj)/%.o: $(src)/%.c
 170         $(call do_compile)
 171
 172 %.o: $(src)/%.c
 173         $(call do_compile)
 174
 175 PEVENT_LIB_OBJS  = event-parse.o
 176 PEVENT_LIB_OBJS += event-plugin.o
 177 PEVENT_LIB_OBJS += trace-seq.o
 178 PEVENT_LIB_OBJS += parse-filter.o
 179 PEVENT_LIB_OBJS += parse-utils.o
 180 PEVENT_LIB_OBJS += kbuffer-parse.o
 181
 182 PLUGIN_OBJS  = plugin_jbd2.o
 183 PLUGIN_OBJS += plugin_hrtimer.o
 184 PLUGIN_OBJS += plugin_kmem.o
 185 PLUGIN_OBJS += plugin_kvm.o
 186 PLUGIN_OBJS += plugin_mac80211.o
 187 PLUGIN_OBJS += plugin_sched_switch.o
 188 PLUGIN_OBJS += plugin_function.o
 189 PLUGIN_OBJS += plugin_xen.o
 190 PLUGIN_OBJS += plugin_scsi.o
 191 PLUGIN_OBJS += plugin_cfg80211.o
 192
 193 PLUGINS := $(PLUGIN_OBJS:.o=.so)
 194
 195 ALL_OBJS = $(PEVENT_LIB_OBJS) $(PLUGIN_OBJS)
 196
 197 CMD_TARGETS = $(LIB_FILE) $(PLUGINS)
 198
 199 TARGETS = $(CMD_TARGETS)
 200
 201
 202 all: all_cmd
 203
 204 all_cmd: $(CMD_TARGETS)
 205
 206 libtraceevent.so: $(PEVENT_LIB_OBJS)
 207         $(QUIET_LINK)$(CC) --shared $^ -o $@
 208
 209 libtraceevent.a: $(PEVENT_LIB_OBJS)
 210         $(QUIET_LINK)$(RM) $@; $(AR) rcs $@ $^
 211
 212 plugins: $(PLUGINS)
 213
 214 $(PEVENT_LIB_OBJS): %.o: $(src)/%.c TRACEEVENT-CFLAGS
 215         $(QUIET_CC_FPIC)$(CC) -c $(CFLAGS) $(EXT) -fPIC $< -o $@
 216
 217 $(PLUGIN_OBJS): %.o : $(src)/%.c
 218         $(QUIET_CC_FPIC)$(CC) -c $(CFLAGS) -fPIC -o $@ $<
 219
 220 $(PLUGINS): %.so: %.o
 221         $(QUIET_LINK)$(CC) $(CFLAGS) -shared -nostartfiles -o $@ $<
 222
 223 define make_version.h
 224   (echo '/* This file is automatically generated. Do not modify. */';           \
 225    echo \#define VERSION_CODE $(shell                                           \
 226    expr $(VERSION) \* 256 + $(PATCHLEVEL));                                     \
 227    echo '#define EXTRAVERSION ' $(EXTRAVERSION);                                \
 228    echo '#define VERSION_STRING "'$(VERSION).$(PATCHLEVEL).$(EXTRAVERSION)'"';  \
 229    echo '#define FILE_VERSION '$(FILE_VERSION);                                 \
 230   ) > $1
 231 endef
 232
 233 define update_version.h
 234   ($(call make_version.h, $@.tmp);              \
 235     if [ -r $@ ] && cmp -s $@ $@.tmp; then      \
 236       rm -f $@.tmp;                             \
 237     else                                        \
 238       echo '  UPDATE                 $@';       \
 239       mv -f $@.tmp $@;                          \
 240     fi);
 241 endef
 242
 243 ep_version.h: force
 244         $(Q)$(N)$(call update_version.h)
 245
 246 VERSION_FILES = ep_version.h
 247
 248 define update_dir
 249   (echo $1 > $@.tmp;                            \
 250    if [ -r $@ ] && cmp -s $@ $@.tmp; then       \
 251      rm -f $@.tmp;                              \
 252    else                                         \
 253      echo '  UPDATE                 $@';        \
 254      mv -f $@.tmp $@;                           \
 255    fi);
 256 endef
 257
 258 ## make deps
 259
 260 all_objs := $(sort $(ALL_OBJS))
 261 all_deps := $(all_objs:%.o=.%.d)
 262
 263 # let .d file also depends on the source and header files
 264 define check_deps
 265   @set -e; $(RM) $@; \
 266   $(CC) -MM $(CFLAGS) $< > $@.$$$$; \
 267   sed 's,\($*\)\.o[ :]*,\1.o $@ : ,g' < $@.$$$$ > $@; \
 268   $(RM) $@.$$$$
 269 endef
 270
 271 $(all_deps): .%.d: $(src)/%.c
 272         $(Q)$(call check_deps)
 273
 274 $(all_objs) : %.o : .%.d
 275
 276 dep_includes := $(wildcard $(all_deps))
 277
 278 ifneq ($(dep_includes),)
 279  include $(dep_includes)
 280 endif
 281
 282 ### Detect environment changes
 283 TRACK_CFLAGS = $(subst ','\'',$(CFLAGS)):$(ARCH):$(CROSS_COMPILE)
 284
 285 TRACEEVENT-CFLAGS: force
 286         @FLAGS='$(TRACK_CFLAGS)'; \
 287             if test x"$$FLAGS" != x"`cat TRACEEVENT-CFLAGS 2>/dev/null`" ; then \
 288                 echo 1>&2 "  FLAGS:   * new build flags or cross compiler"; \
 289                 echo "$$FLAGS" >TRACEEVENT-CFLAGS; \
 290             fi
 291
 292 tags:   force
 293         $(RM) tags
 294         find . -name '*.[ch]' | xargs ctags --extra=+f --c-kinds=+px \
 295         --regex-c++='/_PE\(([^,)]*).*/PEVENT_ERRNO__\1/'
 296
 297 TAGS:   force
 298         $(RM) TAGS
 299         find . -name '*.[ch]' | xargs etags \
 300         --regex='/_PE(\([^,)]*\).*/PEVENT_ERRNO__\1/'
 301
 302 define do_install
 303         if [ ! -d '$(DESTDIR_SQ)$2' ]; then             \
 304                 $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$2'; \
 305         fi;                                             \
 306         $(INSTALL) $1 '$(DESTDIR_SQ)$2'
 307 endef
 308
 309 define do_install_plugins
 310         for plugin in $1; do                            \
 311           $(call do_install,$$plugin,$(plugin_dir_SQ)); \
 312         done
 313 endef
 314
 315 install_lib: all_cmd install_plugins
 316         $(call QUIET_INSTALL, $(LIB_FILE)) \
 317                 $(call do_install,$(LIB_FILE),$(bindir_SQ))
 318
 319 install_plugins: $(PLUGINS)
 320         $(call QUIET_INSTALL, trace_plugins) \
 321                 $(call do_install_plugins, $(PLUGINS))
 322
 323 install: install_lib
 324
 325 clean:
 326         $(call QUIET_CLEAN, libtraceevent) \
 327                 $(RM) *.o *~ $(TARGETS) *.a *.so $(VERSION_FILES) .*.d \
 328                 $(RM) TRACEEVENT-CFLAGS tags TAGS
 329
 330 endif # skip-makefile
 331
 332 PHONY += force plugins
 333 force:
 334
 335 plugins:
 336         @echo > /dev/null
 337
 338 # Declare the contents of the .PHONY variable as phony.  We keep that
 339 # information in a variable so we can use it in if_changed and friends.
 340 .PHONY: $(PHONY)