1# trace-cmd version
  2EP_VERSION = 1
  3EP_PATCHLEVEL = 1
  4EP_EXTRAVERSION = 0
  5
  6# file format version
  7FILE_VERSION = 6
  8
  9MAKEFLAGS += --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.
 17define allow-override
 18  $(if $(or $(findstring environment,$(origin $(1))),\
 19            $(findstring command line,$(origin $(1)))),,\
 20    $(eval $(1) = $(2)))
 21endef
 22
 23# Allow setting CC and AR, or setting CROSS_COMPILE as a prefix.
 24$(call allow-override,CC,$(CROSS_COMPILE)gcc)
 25$(call allow-override,AR,$(CROSS_COMPILE)ar)
 26
 27EXT = -std=gnu99
 28INSTALL = install
 29
 30# Use DESTDIR for installing into a different root directory.
 31# This is useful for building a package. The program will be
 32# installed in this directory as if it was the root directory.
 33# Then the build tool can move it later.
 34DESTDIR ?=
 35DESTDIR_SQ = '$(subst ','\'',$(DESTDIR))'
 36
 37prefix ?= /usr/local
 38bindir_relative = bin
 39bindir = $(prefix)/$(bindir_relative)
 40man_dir = $(prefix)/share/man
 41man_dir_SQ = '$(subst ','\'',$(man_dir))'
 42
 43export man_dir man_dir_SQ INSTALL
 44export DESTDIR DESTDIR_SQ
 45
 46set_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# $(HOME)/.traceevent/plugins by default.
 55#
 56ifeq ($(plugin_dir),)
 57ifeq ($(prefix),$(HOME))
 58override plugin_dir = $(HOME)/.traceevent/plugins
 59set_plugin_dir := 0
 60else
 61override plugin_dir = $(prefix)/lib/traceevent/plugins
 62endif
 63endif
 64
 65ifeq ($(set_plugin_dir),1)
 66PLUGIN_DIR = -DPLUGIN_DIR="$(plugin_dir)"
 67PLUGIN_DIR_SQ = '$(subst ','\'',$(PLUGIN_DIR))'
 68endif
 69
 70include $(if $(BUILD_SRC),$(BUILD_SRC)/)../../scripts/Makefile.include
 71
 72# copy a bit from Linux kbuild
 73
 74ifeq ("$(origin V)", "command line")
 75  VERBOSE = $(V)
 76endif
 77ifndef VERBOSE
 78  VERBOSE = 0
 79endif
 80
 81ifeq ("$(origin O)", "command line")
 82  BUILD_OUTPUT := $(O)
 83endif
 84
 85ifeq ($(BUILD_SRC),)
 86ifneq ($(OUTPUT),)
 87
 88define build_output
 89  $(if $(VERBOSE:1=),@)+$(MAKE) -C $(OUTPUT) \
 90  BUILD_SRC=$(CURDIR)/ -f $(CURDIR)/Makefile $1
 91endef
 92
 93all: sub-make
 94
 95$(MAKECMDGOALS): sub-make
 96
 97sub-make: force
 98	$(call build_output, $(MAKECMDGOALS))
 99
100
101# Leave processing to above invocation of make
102skip-makefile := 1
103
104endif # OUTPUT
105endif # BUILD_SRC
106
107# We process the rest of the Makefile if this is the final invocation of make
108ifeq ($(skip-makefile),)
109
110srctree		:= $(if $(BUILD_SRC),$(BUILD_SRC),$(CURDIR))
111objtree		:= $(CURDIR)
112src		:= $(srctree)
113obj		:= $(objtree)
114
115export prefix bindir src obj
116
117# Shell quotes
118bindir_SQ = $(subst ','\'',$(bindir))
119bindir_relative_SQ = $(subst ','\'',$(bindir_relative))
120plugin_dir_SQ = $(subst ','\'',$(plugin_dir))
121
122LIB_FILE = libtraceevent.a libtraceevent.so
123
124CONFIG_INCLUDES = 
125CONFIG_LIBS	=
126CONFIG_FLAGS	=
127
128VERSION		= $(EP_VERSION)
129PATCHLEVEL	= $(EP_PATCHLEVEL)
130EXTRAVERSION	= $(EP_EXTRAVERSION)
131
132OBJ		= $@
133N		=
134
135export Q VERBOSE
136
137EVENT_PARSE_VERSION = $(EP_VERSION).$(EP_PATCHLEVEL).$(EP_EXTRAVERSION)
138
139INCLUDES = -I. -I $(srctree)/../../include $(CONFIG_INCLUDES)
140
141# Set compile option CFLAGS if not set elsewhere
142CFLAGS ?= -g -Wall
143
144# Append required CFLAGS
145override CFLAGS += $(CONFIG_FLAGS) $(INCLUDES) $(PLUGIN_DIR_SQ)
146override CFLAGS += $(udis86-flags) -D_GNU_SOURCE
147
148ifeq ($(VERBOSE),1)
149  Q =
150else
151  Q = @
152endif
153
154do_compile_shared_library =			\
155	($(print_shared_lib_compile)		\
156	$(CC) --shared $^ -o $@)
157
158do_plugin_build =				\
159	($(print_plugin_build)			\
160	$(CC) $(CFLAGS) -shared -nostartfiles -o $@ $<)
161
162do_build_static_lib =				\
163	($(print_static_lib_build)		\
164	$(RM) $@;  $(AR) rcs $@ $^)
165
166
167do_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
175PEVENT_LIB_OBJS  = event-parse.o
176PEVENT_LIB_OBJS += event-plugin.o
177PEVENT_LIB_OBJS += trace-seq.o
178PEVENT_LIB_OBJS += parse-filter.o
179PEVENT_LIB_OBJS += parse-utils.o
180PEVENT_LIB_OBJS += kbuffer-parse.o
181
182PLUGIN_OBJS  = plugin_jbd2.o
183PLUGIN_OBJS += plugin_hrtimer.o
184PLUGIN_OBJS += plugin_kmem.o
185PLUGIN_OBJS += plugin_kvm.o
186PLUGIN_OBJS += plugin_mac80211.o
187PLUGIN_OBJS += plugin_sched_switch.o
188PLUGIN_OBJS += plugin_function.o
189PLUGIN_OBJS += plugin_xen.o
190PLUGIN_OBJS += plugin_scsi.o
191PLUGIN_OBJS += plugin_cfg80211.o
192
193PLUGINS := $(PLUGIN_OBJS:.o=.so)
194
195ALL_OBJS = $(PEVENT_LIB_OBJS) $(PLUGIN_OBJS)
196
197CMD_TARGETS = $(LIB_FILE) $(PLUGINS)
198
199TARGETS = $(CMD_TARGETS)
200
201
202all: all_cmd
203
204all_cmd: $(CMD_TARGETS)
205
206libtraceevent.so: $(PEVENT_LIB_OBJS)
207	$(QUIET_LINK)$(CC) --shared $^ -o $@
208
209libtraceevent.a: $(PEVENT_LIB_OBJS)
210	$(QUIET_LINK)$(RM) $@; $(AR) rcs $@ $^
211
212plugins: $(PLUGINS)
213
214$(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
223define 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  ) > $1
231endef
232
233define update_version.h
234  ($(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);
241endef
242
243ep_version.h: force
244	$(Q)$(N)$(call update_version.h)
245
246VERSION_FILES = ep_version.h
247
248define 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);
256endef
257
258## make deps
259
260all_objs := $(sort $(ALL_OBJS))
261all_deps := $(all_objs:%.o=.%.d)
262
263# let .d file also depends on the source and header files
264define check_deps
265  @set -e; $(RM) $@; \
266  $(CC) -MM $(CFLAGS) $< > $@.$$$$; \
267  sed 's,\($*\)\.o[ :]*,\1.o $@ : ,g' < $@.$$$$ > $@; \
268  $(RM) $@.$$$$
269endef
270
271$(all_deps): .%.d: $(src)/%.c
272	$(Q)$(call check_deps)
273
274$(all_objs) : %.o : .%.d
275
276dep_includes := $(wildcard $(all_deps))
277
278ifneq ($(dep_includes),)
279 include $(dep_includes)
280endif
281
282### Detect environment changes
283TRACK_CFLAGS = $(subst ','\'',$(CFLAGS)):$(ARCH):$(CROSS_COMPILE)
284
285TRACEEVENT-CFLAGS: force
286	@FLAGS='$(TRACK_CFLAGS)'; \
287	    if test x"$$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
292tags:	force
293	$(RM) tags
294	find . -name '*.[ch]' | xargs ctags --extra=+f --c-kinds=+px \
295	--regex-c++='/_PE\(([^,)]*).*/PEVENT_ERRNO__\1/'
296
297TAGS:	force
298	$(RM) TAGS
299	find . -name '*.[ch]' | xargs etags \
300	--regex='/_PE(\([^,)]*\).*/PEVENT_ERRNO__\1/'
301
302define 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'
307endef
308
309define do_install_plugins
310	for plugin in $1; do				\
311	  $(call do_install,$$plugin,$(plugin_dir_SQ));	\
312	done
313endef
314
315install_lib: all_cmd install_plugins
316	$(call QUIET_INSTALL, $(LIB_FILE)) \
317		$(call do_install,$(LIB_FILE),$(bindir_SQ))
318
319install_plugins: $(PLUGINS)
320	$(call QUIET_INSTALL, trace_plugins) \
321		$(call do_install_plugins, $(PLUGINS))
322
323install: install_lib
324
325clean:
326	$(call QUIET_CLEAN, libtraceevent) \
327		$(RM) *.o *~ $(TARGETS) *.a *.so $(VERSION_FILES) .*.d \
328		$(RM) TRACEEVENT-CFLAGS tags TAGS
329
330endif # skip-makefile
331
332PHONY += force plugins
333force:
334
335plugins:
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)