9 MAKEFLAGS += --no-print-directory
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.
18 $(if $(or $(findstring environment,$(origin $(1))),\
19 $(findstring command line,$(origin $(1)))),,\
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)
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.
35 DESTDIR_SQ = '$(subst ','\'',$(DESTDIR))'
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 ','\'',$(img_install))'
47 export man_dir man_dir_SQ html_install html_install_SQ INSTALL
48 export img_install img_install_SQ
49 export DESTDIR DESTDIR_SQ
51 # copy a bit from Linux kbuild
53 ifeq ("$(origin V)", "command line")
60 ifeq ("$(origin O)", "command line")
65 ifneq ($(BUILD_OUTPUT),)
68 $(if $(VERBOSE:1=),@)$(MAKE) -C $(BUILD_OUTPUT) \
69 BUILD_SRC=$(CURDIR) -f $(CURDIR)/Makefile $1
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))
80 $(call build_output, all_cmd)
82 $(filter-out gui,$(MAKECMDGOALS)): sub-make
85 $(call build_output, $(MAKECMDGOALS))
88 # Leave processing to above invocation of make
94 # We process the rest of the Makefile if this is the final invocation of make
95 ifeq ($(skip-makefile),)
97 srctree := $(if $(BUILD_SRC),$(BUILD_SRC),$(CURDIR))
102 export prefix bindir src obj
105 bindir_SQ = $(subst ','\'',$(bindir))
106 bindir_relative_SQ = $(subst ','\'',$(bindir_relative))
108 LIB_FILE = libtraceevent.a libtraceevent.so
114 VERSION = $(EP_VERSION)
115 PATCHLEVEL = $(EP_PATCHLEVEL)
116 EXTRAVERSION = $(EP_EXTRAVERSION)
123 EVENT_PARSE_VERSION = $(EP_VERSION).$(EP_PATCHLEVEL).$(EP_EXTRAVERSION)
125 INCLUDES = -I. -I/usr/local/include $(CONFIG_INCLUDES)
127 # Set compile option CFLAGS if not set elsewhere
130 # Append required CFLAGS
131 override CFLAGS += $(CONFIG_FLAGS) $(INCLUDES) $(PLUGIN_DIR_SQ)
132 override CFLAGS += $(udis86-flags) -D_GNU_SOURCE
139 print_shared_lib_compile =
140 print_plugin_obj_compile =
145 print_compile = echo ' CC '$(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)$2';
156 ($(print_fpic_compile) \
157 $(CC) -c $(CFLAGS) $(EXT) -fPIC $< -o $@)
160 ($(print_app_build) \
161 $(CC) $^ -rdynamic -o $@ $(CONFIG_LIBS) $(LIBS))
163 do_compile_shared_library = \
164 ($(print_shared_lib_compile) \
165 $(CC) --shared $^ -o $@)
167 do_compile_plugin_obj = \
168 ($(print_plugin_obj_compile) \
169 $(CC) -c $(CFLAGS) -fPIC -o $@ $<)
172 ($(print_plugin_build) \
173 $(CC) $(CFLAGS) -shared -nostartfiles -o $@ $<)
175 do_build_static_lib = \
176 ($(print_static_lib_build) \
177 $(RM) $@; $(AR) rcs $@ $^)
182 $(CC) -c $(CFLAGS) $(EXT) $< -o $(obj)/$@;
185 $(obj)/%.o: $(src)/%.c
186 $(Q)$(call do_compile)
189 $(Q)$(call do_compile)
191 PEVENT_LIB_OBJS = event-parse.o trace-seq.o parse-filter.o parse-utils.o
193 ALL_OBJS = $(PEVENT_LIB_OBJS)
195 CMD_TARGETS = $(LIB_FILE)
197 TARGETS = $(CMD_TARGETS)
202 all_cmd: $(CMD_TARGETS)
204 libtraceevent.so: $(PEVENT_LIB_OBJS)
205 $(Q)$(do_compile_shared_library)
207 libtraceevent.a: $(PEVENT_LIB_OBJS)
208 $(Q)$(do_build_static_lib)
210 $(PEVENT_LIB_OBJS): %.o: $(src)/%.c TRACEEVENT-CFLAGS
211 $(Q)$(do_fpic_compile)
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 '$(FILE_VERSION); \
223 define update_version.h
224 ($(call make_version.h, $@.tmp); \
225 if [ -r $@ ] && cmp -s $@ $@.tmp; then \
234 $(Q)$(N)$(call update_version.h)
236 VERSION_FILES = ep_version.h
240 if [ -r $@ ] && cmp -s $@ $@.tmp; then \
250 all_objs := $(sort $(ALL_OBJS))
251 all_deps := $(all_objs:%.o=.%.d)
253 # let .d file also depends on the source and header files
256 $(CC) -MM $(CFLAGS) $< > $@.$$$$; \
257 sed 's,\($*\)\.o[ :]*,\1.o $@ : ,g' < $@.$$$$ > $@; \
261 $(gui_deps): ks_version.h
262 $(non_gui_deps): tc_version.h
264 $(all_deps): .%.d: $(src)/%.c
265 $(Q)$(call check_deps)
267 $(all_objs) : %.o : .%.d
269 dep_includes := $(wildcard $(all_deps))
271 ifneq ($(dep_includes),)
272 include $(dep_includes)
275 ### Detect environment changes
276 TRACK_CFLAGS = $(subst ','\'',$(CFLAGS)):$(ARCH):$(CROSS_COMPILE)
278 TRACEEVENT-CFLAGS: force
279 @FLAGS='$(TRACK_CFLAGS)'; \
280 if test x"$$FLAGS" != x"`cat TRACEEVENT-CFLAGS 2>/dev/null`" ; then \
281 echo 1>&2 " * new build flags or cross compiler"; \
282 echo "$$FLAGS" >TRACEEVENT-CFLAGS; \
287 find . -name '*.[ch]' | xargs ctags --extra=+f --c-kinds=+px \
288 --regex-c++='/_PE\(([^,)]*).*/PEVENT_ERRNO__\1/'
292 find . -name '*.[ch]' | xargs etags \
293 --regex='/_PE(\([^,)]*\).*/PEVENT_ERRNO__\1/'
297 if [ ! -d '$(DESTDIR_SQ)$2' ]; then \
298 $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$2'; \
300 $(INSTALL) $1 '$(DESTDIR_SQ)$2'
303 install_lib: all_cmd install_plugins install_python
304 $(Q)$(call do_install,$(LIB_FILE),$(bindir_SQ))
309 $(RM) *.o *~ $(TARGETS) *.a *.so $(VERSION_FILES) .*.d
310 $(RM) TRACEEVENT-CFLAGS tags TAGS
312 endif # skip-makefile
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.