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 $(shell pwd)))
  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 LIB_FILE = libtraceevent.a libtraceevent.so
 103
 104 CONFIG_INCLUDES =
 105 CONFIG_LIBS     =
 106 CONFIG_FLAGS    =
 107
 108 VERSION         = $(EP_VERSION)
 109 PATCHLEVEL      = $(EP_PATCHLEVEL)
 110 EXTRAVERSION    = $(EP_EXTRAVERSION)
 111
 112 OBJ             = $@
 113 N               =
 114
 115 EVENT_PARSE_VERSION = $(EP_VERSION).$(EP_PATCHLEVEL).$(EP_EXTRAVERSION)
 116
 117 INCLUDES = -I. -I $(srctree)/tools/include $(CONFIG_INCLUDES)
 118
 119 # Set compile option CFLAGS
 120 ifdef EXTRA_CFLAGS
 121   CFLAGS := $(EXTRA_CFLAGS)
 122 else
 123   CFLAGS := -g -Wall
 124 endif
 125
 126 # Append required CFLAGS
 127 override CFLAGS += -fPIC
 128 override CFLAGS += $(CONFIG_FLAGS) $(INCLUDES) $(PLUGIN_DIR_SQ)
 129 override CFLAGS += $(udis86-flags) -D_GNU_SOURCE
 130
 131 ifeq ($(VERBOSE),1)
 132   Q =
 133 else
 134   Q = @
 135 endif
 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.
 140 MAKEOVERRIDES=
 141
 142 export srctree OUTPUT CC LD CFLAGS V
 143 build := -f $(srctree)/tools/build/Makefile.build dir=. obj
 144
 145 PLUGINS  = plugin_jbd2.so
 146 PLUGINS += plugin_hrtimer.so
 147 PLUGINS += plugin_kmem.so
 148 PLUGINS += plugin_kvm.so
 149 PLUGINS += plugin_mac80211.so
 150 PLUGINS += plugin_sched_switch.so
 151 PLUGINS += plugin_function.so
 152 PLUGINS += plugin_xen.so
 153 PLUGINS += plugin_scsi.so
 154 PLUGINS += plugin_cfg80211.so
 155
 156 PLUGINS    := $(addprefix $(OUTPUT),$(PLUGINS))
 157 PLUGINS_IN := $(PLUGINS:.so=-in.o)
 158
 159 TE_IN    := $(OUTPUT)libtraceevent-in.o
 160 LIB_FILE := $(addprefix $(OUTPUT),$(LIB_FILE))
 161 DYNAMIC_LIST_FILE := $(OUTPUT)libtraceevent-dynamic-list
 162
 163 CMD_TARGETS = $(LIB_FILE) $(PLUGINS) $(DYNAMIC_LIST_FILE)
 164
 165 TARGETS = $(CMD_TARGETS)
 166
 167 all: all_cmd
 168
 169 all_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
 183 plugins: $(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
 194 define 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   ) > $1
 202 endef
 203
 204 define update_version.h
 205   ($(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);
 212 endef
 213
 214 ep_version.h: force
 215         $(Q)$(N)$(call update_version.h)
 216
 217 VERSION_FILES = ep_version.h
 218
 219 define 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);
 227 endef
 228
 229 tags:   force
 230         $(RM) tags
 231         find . -name '*.[ch]' | xargs ctags --extra=+f --c-kinds=+px \
 232         --regex-c++='/_PE\(([^,)]*).*/PEVENT_ERRNO__\1/'
 233
 234 TAGS:   force
 235         $(RM) TAGS
 236         find . -name '*.[ch]' | xargs etags \
 237         --regex='/_PE(\([^,)]*\).*/PEVENT_ERRNO__\1/'
 238
 239 define 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'
 244 endef
 245
 246 define do_install_plugins
 247         for plugin in $1; do                            \
 248           $(call do_install,$$plugin,$(plugin_dir_SQ)); \
 249         done
 250 endef
 251
 252 define do_generate_dynamic_list_file
 253         (echo '{';                                                      \
 254         $(NM) -u -D $1 | awk 'NF>1 {print "\t"$$2";"}' | sort -u;       \
 255         echo '};';                                                      \
 256         ) > $2
 257 endef
 258
 259 install_lib: all_cmd install_plugins
 260         $(call QUIET_INSTALL, $(LIB_FILE)) \
 261                 $(call do_install,$(LIB_FILE),$(libdir_SQ))
 262
 263 install_plugins: $(PLUGINS)
 264         $(call QUIET_INSTALL, trace_plugins) \
 265                 $(call do_install_plugins, $(PLUGINS))
 266
 267 install: install_lib
 268
 269 clean:
 270         $(call QUIET_CLEAN, libtraceevent) \
 271                 $(RM) *.o *~ $(TARGETS) *.a *.so $(VERSION_FILES) .*.d .*.cmd \
 272                 $(RM) TRACEEVENT-CFLAGS tags TAGS
 273
 274 PHONY += force plugins
 275 force:
 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)