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 $(call allow-override,NM,$(CROSS_COMPILE)nm)
  27
  28 EXT = -std=gnu99
  29 INSTALL = 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.
  35 DESTDIR ?=
  36 DESTDIR_SQ = '$(subst ','\'',$(DESTDIR))'
  37
  38 LP64 := $(shell echo __LP64__ | ${CC} ${CFLAGS} -E -x c - | tail -n 1)
  39 ifeq ($(LP64), 1)
  40   libdir_relative = lib64
  41 else
  42   libdir_relative = lib
  43 endif
  44
  45 prefix ?= /usr/local
  46 libdir = $(prefix)/$(libdir_relative)
  47 man_dir = $(prefix)/share/man
  48 man_dir_SQ = '$(subst ','\'',$(man_dir))'
  49
  50 export man_dir man_dir_SQ INSTALL
  51 export DESTDIR DESTDIR_SQ
  52
  53 set_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)/.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 # $(HOME)/.traceevent/plugins by default.
  62 #
  63 ifeq ($(plugin_dir),)
  64 ifeq ($(prefix),$(HOME))
  65 override plugin_dir = $(HOME)/.traceevent/plugins
  66 set_plugin_dir := 0
  67 else
  68 override plugin_dir = $(libdir)/traceevent/plugins
  69 endif
  70 endif
  71
  72 ifeq ($(set_plugin_dir),1)
  73 PLUGIN_DIR = -DPLUGIN_DIR="$(plugin_dir)"
  74 PLUGIN_DIR_SQ = '$(subst ','\'',$(PLUGIN_DIR))'
  75 endif
  76
  77 include ../../scripts/Makefile.include
  78
  79 # copy a bit from Linux kbuild
  80
  81 ifeq ("$(origin V)", "command line")
  82   VERBOSE = $(V)
  83 endif
  84 ifndef VERBOSE
  85   VERBOSE = 0
  86 endif
  87
  88 ifeq ($(srctree),)
  89 srctree := $(patsubst %/,%,$(dir $(CURDIR)))
  90 srctree := $(patsubst %/,%,$(dir $(srctree)))
  91 srctree := $(patsubst %/,%,$(dir $(srctree)))
  92 #$(info Determined 'srctree' to be $(srctree))
  93 endif
  94
  95 export prefix libdir src obj
  96
  97 # Shell quotes
  98 libdir_SQ = $(subst ','\'',$(libdir))
  99 libdir_relative_SQ = $(subst ','\'',$(libdir_relative))
 100 plugin_dir_SQ = $(subst ','\'',$(plugin_dir))
 101
 102 CONFIG_INCLUDES =
 103 CONFIG_LIBS     =
 104 CONFIG_FLAGS    =
 105
 106 VERSION         = $(EP_VERSION)
 107 PATCHLEVEL      = $(EP_PATCHLEVEL)
 108 EXTRAVERSION    = $(EP_EXTRAVERSION)
 109
 110 OBJ             = $@
 111 N               =
 112
 113 EVENT_PARSE_VERSION = $(EP_VERSION).$(EP_PATCHLEVEL).$(EP_EXTRAVERSION)
 114
 115 LIB_TARGET  = libtraceevent.a libtraceevent.so.$(EVENT_PARSE_VERSION)
 116 LIB_INSTALL = libtraceevent.a libtraceevent.so*
 117
 118 INCLUDES = -I. -I $(srctree)/tools/include $(CONFIG_INCLUDES)
 119
 120 # Set compile option CFLAGS
 121 ifdef EXTRA_CFLAGS
 122   CFLAGS := $(EXTRA_CFLAGS)
 123 else
 124   CFLAGS := -g -Wall
 125 endif
 126
 127 # Append required CFLAGS
 128 override CFLAGS += -fPIC
 129 override CFLAGS += $(CONFIG_FLAGS) $(INCLUDES) $(PLUGIN_DIR_SQ)
 130 override CFLAGS += $(udis86-flags) -D_GNU_SOURCE
 131
 132 ifeq ($(VERBOSE),1)
 133   Q =
 134 else
 135   Q = @
 136 endif
 137
 138 # Disable command line variables (CFLAGS) overide from top
 139 # level Makefile (perf), otherwise build Makefile will get
 140 # the same command line setup.
 141 MAKEOVERRIDES=
 142
 143 export srctree OUTPUT CC LD CFLAGS V
 144 build := -f $(srctree)/tools/build/Makefile.build dir=. obj
 145
 146 PLUGINS  = plugin_jbd2.so
 147 PLUGINS += plugin_hrtimer.so
 148 PLUGINS += plugin_kmem.so
 149 PLUGINS += plugin_kvm.so
 150 PLUGINS += plugin_mac80211.so
 151 PLUGINS += plugin_sched_switch.so
 152 PLUGINS += plugin_function.so
 153 PLUGINS += plugin_xen.so
 154 PLUGINS += plugin_scsi.so
 155 PLUGINS += plugin_cfg80211.so
 156
 157 PLUGINS    := $(addprefix $(OUTPUT),$(PLUGINS))
 158 PLUGINS_IN := $(PLUGINS:.so=-in.o)
 159
 160 TE_IN      := $(OUTPUT)libtraceevent-in.o
 161 LIB_TARGET := $(addprefix $(OUTPUT),$(LIB_TARGET))
 162 DYNAMIC_LIST_FILE := $(OUTPUT)libtraceevent-dynamic-list
 163
 164 CMD_TARGETS = $(LIB_TARGET) $(PLUGINS) $(DYNAMIC_LIST_FILE)
 165
 166 TARGETS = $(CMD_TARGETS)
 167
 168 all: all_cmd
 169
 170 all_cmd: $(CMD_TARGETS)
 171
 172 $(TE_IN): force
 173         $(Q)$(MAKE) $(build)=libtraceevent
 174
 175 $(OUTPUT)libtraceevent.so.$(EVENT_PARSE_VERSION): $(TE_IN)
 176         $(QUIET_LINK)$(CC) --shared $^ -Wl,-soname,libtraceevent.so.$(EP_VERSION) -o $@
 177         @ln -sf $(@F) $(OUTPUT)libtraceevent.so
 178         @ln -sf $(@F) $(OUTPUT)libtraceevent.so.$(EP_VERSION)
 179
 180 $(OUTPUT)libtraceevent.a: $(TE_IN)
 181         $(QUIET_LINK)$(RM) $@; $(AR) rcs $@ $^
 182
 183 $(OUTPUT)libtraceevent-dynamic-list: $(PLUGINS)
 184         $(QUIET_GEN)$(call do_generate_dynamic_list_file, $(PLUGINS), $@)
 185
 186 plugins: $(PLUGINS)
 187
 188 __plugin_obj = $(notdir $@)
 189   plugin_obj = $(__plugin_obj:-in.o=)
 190
 191 $(PLUGINS_IN): force
 192         $(Q)$(MAKE) $(build)=$(plugin_obj)
 193
 194 $(OUTPUT)%.so: $(OUTPUT)%-in.o
 195         $(QUIET_LINK)$(CC) $(CFLAGS) -shared -nostartfiles -o $@ $^
 196
 197 define make_version.h
 198   (echo '/* This file is automatically generated. Do not modify. */';           \
 199    echo \#define VERSION_CODE $(shell                                           \
 200    expr $(VERSION) \* 256 + $(PATCHLEVEL));                                     \
 201    echo '#define EXTRAVERSION ' $(EXTRAVERSION);                                \
 202    echo '#define VERSION_STRING "'$(VERSION).$(PATCHLEVEL).$(EXTRAVERSION)'"';  \
 203    echo '#define FILE_VERSION '$(FILE_VERSION);                                 \
 204   ) > $1
 205 endef
 206
 207 define update_version.h
 208   ($(call make_version.h, $@.tmp);              \
 209     if [ -r $@ ] && cmp -s $@ $@.tmp; then      \
 210       rm -f $@.tmp;                             \
 211     else                                        \
 212       echo '  UPDATE                 $@';       \
 213       mv -f $@.tmp $@;                          \
 214     fi);
 215 endef
 216
 217 ep_version.h: force
 218         $(Q)$(N)$(call update_version.h)
 219
 220 VERSION_FILES = ep_version.h
 221
 222 define update_dir
 223   (echo $1 > $@.tmp;                            \
 224    if [ -r $@ ] && cmp -s $@ $@.tmp; then       \
 225      rm -f $@.tmp;                              \
 226    else                                         \
 227      echo '  UPDATE                 $@';        \
 228      mv -f $@.tmp $@;                           \
 229    fi);
 230 endef
 231
 232 tags:   force
 233         $(RM) tags
 234         find . -name '*.[ch]' | xargs ctags --extra=+f --c-kinds=+px \
 235         --regex-c++='/_PE\(([^,)]*).*/PEVENT_ERRNO__\1/'
 236
 237 TAGS:   force
 238         $(RM) TAGS
 239         find . -name '*.[ch]' | xargs etags \
 240         --regex='/_PE(\([^,)]*\).*/PEVENT_ERRNO__\1/'
 241
 242 define do_install_mkdir
 243         if [ ! -d '$(DESTDIR_SQ)$1' ]; then             \
 244                 $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$1'; \
 245         fi
 246 endef
 247
 248 define do_install
 249         $(call do_install_mkdir,$2);                    \
 250         $(INSTALL) $(if $3,-m $3,) $1 '$(DESTDIR_SQ)$2'
 251 endef
 252
 253 define do_install_plugins
 254         for plugin in $1; do                            \
 255           $(call do_install,$$plugin,$(plugin_dir_SQ)); \
 256         done
 257 endef
 258
 259 define do_generate_dynamic_list_file
 260         (echo '{';                                                      \
 261         $(NM) -u -D $1 | awk 'NF>1 {print "\t"$$2";"}' | sort -u;       \
 262         echo '};';                                                      \
 263         ) > $2
 264 endef
 265
 266 install_lib: all_cmd install_plugins
 267         $(call QUIET_INSTALL, $(LIB_TARGET)) \
 268                 $(call do_install_mkdir,$(libdir_SQ)); \
 269                 cp -fpR $(LIB_INSTALL) $(DESTDIR)$(libdir_SQ)
 270
 271 install_plugins: $(PLUGINS)
 272         $(call QUIET_INSTALL, trace_plugins) \
 273                 $(call do_install_plugins, $(PLUGINS))
 274
 275 install_headers:
 276         $(call QUIET_INSTALL, headers) \
 277                 $(call do_install,event-parse.h,$(prefix)/include/traceevent,644); \
 278                 $(call do_install,event-utils.h,$(prefix)/include/traceevent,644); \
 279                 $(call do_install,kbuffer.h,$(prefix)/include/traceevent,644)
 280
 281 install: install_lib
 282
 283 clean:
 284         $(call QUIET_CLEAN, libtraceevent) \
 285                 $(RM) *.o *~ $(TARGETS) *.a *.so $(VERSION_FILES) .*.d .*.cmd \
 286                 $(RM) TRACEEVENT-CFLAGS tags TAGS
 287
 288 PHONY += force plugins
 289 force:
 290
 291 # Declare the contents of the .PHONY variable as phony.  We keep that
 292 # information in a variable so we can use it in if_changed and friends.
 293 .PHONY: $(PHONY)