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 html_install = $(prefix)/share/kernelshark/html
  43 html_install_SQ = '$(subst ','\'',$(html_install))'
  44 img_install = $(prefix)/share/kernelshark/html/images
  45 img_install_SQ = '$(subst ','\'',$(img_install))'
  46
  47 export man_dir man_dir_SQ html_install html_install_SQ INSTALL
  48 export img_install img_install_SQ
  49 export DESTDIR DESTDIR_SQ
  50
  51 # copy a bit from Linux kbuild
  52
  53 ifeq ("$(origin V)", "command line")
  54   VERBOSE = $(V)
  55 endif
  56 ifndef VERBOSE
  57   VERBOSE = 0
  58 endif
  59
  60 ifeq ("$(origin O)", "command line")
  61   BUILD_OUTPUT := $(O)
  62 endif
  63
  64 ifeq ($(BUILD_SRC),)
  65 ifneq ($(BUILD_OUTPUT),)
  66
  67 define build_output
  68         $(if $(VERBOSE:1=),@)$(MAKE) -C $(BUILD_OUTPUT)         \
  69         BUILD_SRC=$(CURDIR) -f $(CURDIR)/Makefile $1
  70 endef
  71
  72 saved-output := $(BUILD_OUTPUT)
  73 BUILD_OUTPUT := $(shell cd $(BUILD_OUTPUT) && /bin/pwd)
  74 $(if $(BUILD_OUTPUT),, \
  75      $(error output directory "$(saved-output)" does not exist))
  76
  77 all: sub-make
  78
  79 gui: force
  80         $(call build_output, all_cmd)
  81
  82 $(filter-out gui,$(MAKECMDGOALS)): sub-make
  83
  84 sub-make: force
  85         $(call build_output, $(MAKECMDGOALS))
  86
  87
  88 # Leave processing to above invocation of make
  89 skip-makefile := 1
  90
  91 endif # BUILD_OUTPUT
  92 endif # BUILD_SRC
  93
  94 # We process the rest of the Makefile if this is the final invocation of make
  95 ifeq ($(skip-makefile),)
  96
  97 srctree         := $(if $(BUILD_SRC),$(BUILD_SRC),$(CURDIR))
  98 objtree         := $(CURDIR)
  99 src             := $(srctree)
 100 obj             := $(objtree)
 101
 102 export prefix bindir src obj
 103
 104 # Shell quotes
 105 bindir_SQ = $(subst ','\'',$(bindir))
 106 bindir_relative_SQ = $(subst ','\'',$(bindir_relative))
 107
 108 LIB_FILE = libtraceevent.a libtraceevent.so
 109
 110 CONFIG_INCLUDES =
 111 CONFIG_LIBS     =
 112 CONFIG_FLAGS    =
 113
 114 VERSION         = $(EP_VERSION)
 115 PATCHLEVEL      = $(EP_PATCHLEVEL)
 116 EXTRAVERSION    = $(EP_EXTRAVERSION)
 117
 118 OBJ             = $@
 119 N               =
 120
 121 export Q VERBOSE
 122
 123 EVENT_PARSE_VERSION = $(EP_VERSION).$(EP_PATCHLEVEL).$(EP_EXTRAVERSION)
 124
 125 INCLUDES = -I. $(CONFIG_INCLUDES)
 126
 127 # Set compile option CFLAGS if not set elsewhere
 128 CFLAGS ?= -g -Wall
 129
 130 # Append required CFLAGS
 131 override CFLAGS += $(CONFIG_FLAGS) $(INCLUDES) $(PLUGIN_DIR_SQ)
 132 override CFLAGS += $(udis86-flags) -D_GNU_SOURCE
 133
 134 ifeq ($(VERBOSE),1)
 135   Q =
 136   print_compile =
 137   print_app_build =
 138   print_fpic_compile =
 139   print_shared_lib_compile =
 140   print_plugin_obj_compile =
 141   print_plugin_build =
 142   print_install =
 143 else
 144   Q = @
 145   print_compile =               echo '  CC                 '$(OBJ);
 146   print_app_build =             echo '  BUILD              '$(OBJ);
 147   print_fpic_compile =          echo '  CC FPIC            '$(OBJ);
 148   print_shared_lib_compile =    echo '  BUILD SHARED LIB   '$(OBJ);
 149   print_plugin_obj_compile =    echo '  CC PLUGIN OBJ      '$(OBJ);
 150   print_plugin_build =          echo '  CC PLUGI           '$(OBJ);
 151   print_static_lib_build =      echo '  BUILD STATIC LIB   '$(OBJ);
 152   print_install =               echo '  INSTALL     '$1'        to      $(DESTDIR_SQ)$2';
 153 endif
 154
 155 do_fpic_compile =                                       \
 156         ($(print_fpic_compile)                          \
 157         $(CC) -c $(CFLAGS) $(EXT) -fPIC $< -o $@)
 158
 159 do_app_build =                                          \
 160         ($(print_app_build)                             \
 161         $(CC) $^ -rdynamic -o $@ $(CONFIG_LIBS) $(LIBS))
 162
 163 do_compile_shared_library =                     \
 164         ($(print_shared_lib_compile)            \
 165         $(CC) --shared $^ -o $@)
 166
 167 do_compile_plugin_obj =                         \
 168         ($(print_plugin_obj_compile)            \
 169         $(CC) -c $(CFLAGS) -fPIC -o $@ $<)
 170
 171 do_plugin_build =                               \
 172         ($(print_plugin_build)                  \
 173         $(CC) $(CFLAGS) -shared -nostartfiles -o $@ $<)
 174
 175 do_build_static_lib =                           \
 176         ($(print_static_lib_build)              \
 177         $(RM) $@;  $(AR) rcs $@ $^)
 178
 179
 180 define do_compile
 181         $(print_compile)                                                \
 182         $(CC) -c $(CFLAGS) $(EXT) $< -o $(obj)/$@;
 183 endef
 184
 185 $(obj)/%.o: $(src)/%.c
 186         $(Q)$(call do_compile)
 187
 188 %.o: $(src)/%.c
 189         $(Q)$(call do_compile)
 190
 191 PEVENT_LIB_OBJS = event-parse.o trace-seq.o parse-filter.o parse-utils.o
 192
 193 ALL_OBJS = $(PEVENT_LIB_OBJS)
 194
 195 CMD_TARGETS = $(LIB_FILE)
 196
 197 TARGETS = $(CMD_TARGETS)
 198
 199
 200 all: all_cmd
 201
 202 all_cmd: $(CMD_TARGETS)
 203
 204 libtraceevent.so: $(PEVENT_LIB_OBJS)
 205         $(Q)$(do_compile_shared_library)
 206
 207 libtraceevent.a: $(PEVENT_LIB_OBJS)
 208         $(Q)$(do_build_static_lib)
 209
 210 $(PEVENT_LIB_OBJS): %.o: $(src)/%.c TRACEEVENT-CFLAGS
 211         $(Q)$(do_fpic_compile)
 212
 213 define make_version.h
 214         (echo '/* This file is automatically generated. Do not modify. */';             \
 215         echo \#define VERSION_CODE $(shell                                              \
 216         expr $(VERSION) \* 256 + $(PATCHLEVEL));                                        \
 217         echo '#define EXTRAVERSION ' $(EXTRAVERSION);                                   \
 218         echo '#define VERSION_STRING "'$(VERSION).$(PATCHLEVEL).$(EXTRAVERSION)'"';     \
 219         echo '#define FILE_VERSION '$(FILE_VERSION);                                    \
 220         ) > $1
 221 endef
 222
 223 define update_version.h
 224         ($(call make_version.h, $@.tmp);                \
 225         if [ -r $@ ] && cmp -s $@ $@.tmp; then          \
 226                 rm -f $@.tmp;                           \
 227         else                                            \
 228                 echo '  UPDATE                 $@';     \
 229                 mv -f $@.tmp $@;                        \
 230         fi);
 231 endef
 232
 233 ep_version.h: force
 234         $(Q)$(N)$(call update_version.h)
 235
 236 VERSION_FILES = ep_version.h
 237
 238 define update_dir
 239         (echo $1 > $@.tmp;      \
 240         if [ -r $@ ] && cmp -s $@ $@.tmp; then          \
 241                 rm -f $@.tmp;                           \
 242         else                                            \
 243                 echo '  UPDATE                 $@';     \
 244                 mv -f $@.tmp $@;                        \
 245         fi);
 246 endef
 247
 248 ## make deps
 249
 250 all_objs := $(sort $(ALL_OBJS))
 251 all_deps := $(all_objs:%.o=.%.d)
 252
 253 # let .d file also depends on the source and header files
 254 define check_deps
 255                 @set -e; $(RM) $@; \
 256                 $(CC) -MM $(CFLAGS) $< > $@.$$$$; \
 257                 sed 's,\($*\)\.o[ :]*,\1.o $@ : ,g' < $@.$$$$ > $@; \
 258                 $(RM) $@.$$$$
 259 endef
 260
 261 $(gui_deps): ks_version.h
 262 $(non_gui_deps): tc_version.h
 263
 264 $(all_deps): .%.d: $(src)/%.c
 265         $(Q)$(call check_deps)
 266
 267 $(all_objs) : %.o : .%.d
 268
 269 dep_includes := $(wildcard $(all_deps))
 270
 271 ifneq ($(dep_includes),)
 272  include $(dep_includes)
 273 endif
 274
 275 ### Detect environment changes
 276 TRACK_CFLAGS = $(subst ','\'',$(CFLAGS)):$(ARCH):$(CROSS_COMPILE)
 277
 278 TRACEEVENT-CFLAGS: force
 279         @FLAGS='$(TRACK_CFLAGS)'; \
 280             if test x"$$FLAGS" != x"`cat TRACEEVENT-CFLAGS 2>/dev/null`" ; then \
 281                 echo 1>&2 "    * new build flags or cross compiler"; \
 282                 echo "$$FLAGS" >TRACEEVENT-CFLAGS; \
 283             fi
 284
 285 tags:   force
 286         $(RM) tags
 287         find . -name '*.[ch]' | xargs ctags --extra=+f --c-kinds=+px \
 288         --regex-c++='/_PE\(([^,)]*).*/PEVENT_ERRNO__\1/'
 289
 290 TAGS:   force
 291         $(RM) TAGS
 292         find . -name '*.[ch]' | xargs etags \
 293         --regex='/_PE(\([^,)]*\).*/PEVENT_ERRNO__\1/'
 294
 295 define do_install
 296         $(print_install)                                \
 297         if [ ! -d '$(DESTDIR_SQ)$2' ]; then             \
 298                 $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$2'; \
 299         fi;                                             \
 300         $(INSTALL) $1 '$(DESTDIR_SQ)$2'
 301 endef
 302
 303 install_lib: all_cmd install_plugins install_python
 304         $(Q)$(call do_install,$(LIB_FILE),$(bindir_SQ))
 305
 306 install: install_lib
 307
 308 clean:
 309         $(RM) *.o *~ $(TARGETS) *.a *.so $(VERSION_FILES) .*.d
 310         $(RM) TRACEEVENT-CFLAGS tags TAGS
 311
 312 endif # skip-makefile
 313
 314 PHONY += force
 315 force:
 316
 317 # Declare the contents of the .PHONY variable as phony.  We keep that
 318 # information in a variable so we can use it in if_changed and friends.
 319 .PHONY: $(PHONY)