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="$(plugin_dir)"
  67 PLUGIN_DIR_SQ = '$(subst ','\'',$(PLUGIN_DIR))'
  68 endif
  69
  70 include ../../scripts/Makefile.include
  71
  72 # copy a bit from Linux kbuild
  73
  74 ifeq ("$(origin V)", "command line")
  75   VERBOSE = $(V)
  76 endif
  77 ifndef VERBOSE
  78   VERBOSE = 0
  79 endif
  80
  81 ifeq ($(srctree),)
  82 srctree := $(patsubst %/,%,$(dir $(shell pwd)))
  83 srctree := $(patsubst %/,%,$(dir $(srctree)))
  84 srctree := $(patsubst %/,%,$(dir $(srctree)))
  85 #$(info Determined 'srctree' to be $(srctree))
  86 endif
  87
  88 export prefix bindir src obj
  89
  90 # Shell quotes
  91 bindir_SQ = $(subst ','\'',$(bindir))
  92 bindir_relative_SQ = $(subst ','\'',$(bindir_relative))
  93 plugin_dir_SQ = $(subst ','\'',$(plugin_dir))
  94
  95 LIB_FILE = libtraceevent.a libtraceevent.so
  96
  97 CONFIG_INCLUDES =
  98 CONFIG_LIBS     =
  99 CONFIG_FLAGS    =
 100
 101 VERSION         = $(EP_VERSION)
 102 PATCHLEVEL      = $(EP_PATCHLEVEL)
 103 EXTRAVERSION    = $(EP_EXTRAVERSION)
 104
 105 OBJ             = $@
 106 N               =
 107
 108 EVENT_PARSE_VERSION = $(EP_VERSION).$(EP_PATCHLEVEL).$(EP_EXTRAVERSION)
 109
 110 INCLUDES = -I. -I $(srctree)/tools/include $(CONFIG_INCLUDES)
 111
 112 # Set compile option CFLAGS
 113 ifdef EXTRA_CFLAGS
 114   CFLAGS := $(EXTRA_CFLAGS)
 115 else
 116   CFLAGS := -g -Wall
 117 endif
 118
 119 # Append required CFLAGS
 120 override CFLAGS += -fPIC
 121 override CFLAGS += $(CONFIG_FLAGS) $(INCLUDES) $(PLUGIN_DIR_SQ)
 122 override CFLAGS += $(udis86-flags) -D_GNU_SOURCE
 123
 124 ifeq ($(VERBOSE),1)
 125   Q =
 126 else
 127   Q = @
 128 endif
 129
 130 # Disable command line variables (CFLAGS) overide from top
 131 # level Makefile (perf), otherwise build Makefile will get
 132 # the same command line setup.
 133 MAKEOVERRIDES=
 134
 135 export srctree OUTPUT CC LD CFLAGS V
 136 build := -f $(srctree)/tools/build/Makefile.build dir=. obj
 137
 138 PLUGINS  = plugin_jbd2.so
 139 PLUGINS += plugin_hrtimer.so
 140 PLUGINS += plugin_kmem.so
 141 PLUGINS += plugin_kvm.so
 142 PLUGINS += plugin_mac80211.so
 143 PLUGINS += plugin_sched_switch.so
 144 PLUGINS += plugin_function.so
 145 PLUGINS += plugin_xen.so
 146 PLUGINS += plugin_scsi.so
 147 PLUGINS += plugin_cfg80211.so
 148
 149 PLUGINS    := $(addprefix $(OUTPUT),$(PLUGINS))
 150 PLUGINS_IN := $(PLUGINS:.so=-in.o)
 151
 152 TE_IN    := $(OUTPUT)libtraceevent-in.o
 153 LIB_FILE := $(addprefix $(OUTPUT),$(LIB_FILE))
 154
 155 CMD_TARGETS = $(LIB_FILE) $(PLUGINS)
 156
 157 TARGETS = $(CMD_TARGETS)
 158
 159 all: all_cmd
 160
 161 all_cmd: $(CMD_TARGETS)
 162
 163 $(TE_IN): force
 164         $(Q)$(MAKE) $(build)=libtraceevent
 165
 166 $(OUTPUT)libtraceevent.so: $(TE_IN)
 167         $(QUIET_LINK)$(CC) --shared $^ -o $@
 168
 169 $(OUTPUT)libtraceevent.a: $(TE_IN)
 170         $(QUIET_LINK)$(RM) $@; $(AR) rcs $@ $^
 171
 172 plugins: $(PLUGINS)
 173
 174 __plugin_obj = $(notdir $@)
 175   plugin_obj = $(__plugin_obj:-in.o=)
 176
 177 $(PLUGINS_IN): force
 178         $(Q)$(MAKE) $(build)=$(plugin_obj)
 179
 180 $(OUTPUT)%.so: $(OUTPUT)%-in.o
 181         $(QUIET_LINK)$(CC) $(CFLAGS) -shared -nostartfiles -o $@ $^
 182
 183 define make_version.h
 184   (echo '/* This file is automatically generated. Do not modify. */';           \
 185    echo \#define VERSION_CODE $(shell                                           \
 186    expr $(VERSION) \* 256 + $(PATCHLEVEL));                                     \
 187    echo '#define EXTRAVERSION ' $(EXTRAVERSION);                                \
 188    echo '#define VERSION_STRING "'$(VERSION).$(PATCHLEVEL).$(EXTRAVERSION)'"';  \
 189    echo '#define FILE_VERSION '$(FILE_VERSION);                                 \
 190   ) > $1
 191 endef
 192
 193 define update_version.h
 194   ($(call make_version.h, $@.tmp);              \
 195     if [ -r $@ ] && cmp -s $@ $@.tmp; then      \
 196       rm -f $@.tmp;                             \
 197     else                                        \
 198       echo '  UPDATE                 $@';       \
 199       mv -f $@.tmp $@;                          \
 200     fi);
 201 endef
 202
 203 ep_version.h: force
 204         $(Q)$(N)$(call update_version.h)
 205
 206 VERSION_FILES = ep_version.h
 207
 208 define update_dir
 209   (echo $1 > $@.tmp;                            \
 210    if [ -r $@ ] && cmp -s $@ $@.tmp; then       \
 211      rm -f $@.tmp;                              \
 212    else                                         \
 213      echo '  UPDATE                 $@';        \
 214      mv -f $@.tmp $@;                           \
 215    fi);
 216 endef
 217
 218 tags:   force
 219         $(RM) tags
 220         find . -name '*.[ch]' | xargs ctags --extra=+f --c-kinds=+px \
 221         --regex-c++='/_PE\(([^,)]*).*/PEVENT_ERRNO__\1/'
 222
 223 TAGS:   force
 224         $(RM) TAGS
 225         find . -name '*.[ch]' | xargs etags \
 226         --regex='/_PE(\([^,)]*\).*/PEVENT_ERRNO__\1/'
 227
 228 define do_install
 229         if [ ! -d '$(DESTDIR_SQ)$2' ]; then             \
 230                 $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$2'; \
 231         fi;                                             \
 232         $(INSTALL) $1 '$(DESTDIR_SQ)$2'
 233 endef
 234
 235 define do_install_plugins
 236         for plugin in $1; do                            \
 237           $(call do_install,$$plugin,$(plugin_dir_SQ)); \
 238         done
 239 endef
 240
 241 install_lib: all_cmd install_plugins
 242         $(call QUIET_INSTALL, $(LIB_FILE)) \
 243                 $(call do_install,$(LIB_FILE),$(bindir_SQ))
 244
 245 install_plugins: $(PLUGINS)
 246         $(call QUIET_INSTALL, trace_plugins) \
 247                 $(call do_install_plugins, $(PLUGINS))
 248
 249 install: install_lib
 250
 251 clean:
 252         $(call QUIET_CLEAN, libtraceevent) \
 253                 $(RM) *.o *~ $(TARGETS) *.a *.so $(VERSION_FILES) .*.d \
 254                 $(RM) TRACEEVENT-CFLAGS tags TAGS
 255
 256 PHONY += force plugins
 257 force:
 258
 259 # Declare the contents of the .PHONY variable as phony.  We keep that
 260 # information in a variable so we can use it in if_changed and friends.
 261 .PHONY: $(PHONY)