1 # SPDX-License-Identifier: GPL-2.0
10 MAKEFLAGS += --no-print-directory
13 # Makefiles suck: This macro sets a default value of $(2) for the
14 # variable named by $(1), unless the variable has been set by
15 # environment or command line. This is necessary for CC and AR
16 # because make sets default values, so the simpler ?= approach
17 # won't work as expected.
19 $(if $(or $(findstring environment,$(origin $(1))),\
20 $(findstring command line,$(origin $(1)))),,\
24 # Allow setting CC and AR, or setting CROSS_COMPILE as a prefix.
25 $(call allow-override,CC,$(CROSS_COMPILE)gcc)
26 $(call allow-override,AR,$(CROSS_COMPILE)ar)
27 $(call allow-override,NM,$(CROSS_COMPILE)nm)
28 $(call allow-override,PKG_CONFIG,pkg-config)
33 # Use DESTDIR for installing into a different root directory.
34 # This is useful for building a package. The program will be
35 # installed in this directory as if it was the root directory.
36 # Then the build tool can move it later.
38 DESTDIR_SQ = '$(subst ','\'',$(DESTDIR))'
40 LP64 := $(shell echo __LP64__ | ${CC} ${CFLAGS} -E -x c - | tail -n 1)
42 libdir_relative_temp = lib64
44 libdir_relative_temp = lib
47 libdir_relative ?= $(libdir_relative_temp)
49 libdir = $(prefix)/$(libdir_relative)
50 man_dir = $(prefix)/share/man
51 man_dir_SQ = '$(subst ','\'',$(man_dir))'
52 pkgconfig_dir ?= $(word 1,$(shell $(PKG_CONFIG) \
53 --variable pc_path pkg-config | tr ":" " "))
54 includedir_relative = traceevent
55 includedir = $(prefix)/include/$(includedir_relative)
56 includedir_SQ = '$(subst ','\'',$(includedir))'
58 export man_dir man_dir_SQ INSTALL
59 export DESTDIR DESTDIR_SQ
60 export EVENT_PARSE_VERSION
62 include ../../scripts/Makefile.include
64 # copy a bit from Linux kbuild
66 ifeq ("$(origin V)", "command line")
74 srctree := $(patsubst %/,%,$(dir $(CURDIR)))
75 srctree := $(patsubst %/,%,$(dir $(srctree)))
76 srctree := $(patsubst %/,%,$(dir $(srctree)))
77 #$(info Determined 'srctree' to be $(srctree))
80 export prefix libdir src obj
83 libdir_SQ = $(subst ','\'',$(libdir))
84 libdir_relative_SQ = $(subst ','\'',$(libdir_relative))
90 VERSION = $(EP_VERSION)
91 PATCHLEVEL = $(EP_PATCHLEVEL)
92 EXTRAVERSION = $(EP_EXTRAVERSION)
97 EVENT_PARSE_VERSION = $(EP_VERSION).$(EP_PATCHLEVEL).$(EP_EXTRAVERSION)
99 LIB_TARGET = libtraceevent.a libtraceevent.so.$(EVENT_PARSE_VERSION)
100 LIB_INSTALL = libtraceevent.a libtraceevent.so*
101 LIB_INSTALL := $(addprefix $(OUTPUT),$(LIB_INSTALL))
103 INCLUDES = -I. -I $(srctree)/tools/include $(CONFIG_INCLUDES)
105 # Set compile option CFLAGS
107 CFLAGS := $(EXTRA_CFLAGS)
112 # Append required CFLAGS
113 override CFLAGS += -fPIC
114 override CFLAGS += $(CONFIG_FLAGS) $(INCLUDES) $(PLUGIN_DIR_SQ)
115 override CFLAGS += $(udis86-flags) -D_GNU_SOURCE
123 # Disable command line variables (CFLAGS) override from top
124 # level Makefile (perf), otherwise build Makefile will get
125 # the same command line setup.
128 export srctree OUTPUT CC LD CFLAGS V
129 build := -f $(srctree)/tools/build/Makefile.build dir=. obj
131 TE_IN := $(OUTPUT)libtraceevent-in.o
132 LIB_TARGET := $(addprefix $(OUTPUT),$(LIB_TARGET))
134 CMD_TARGETS = $(LIB_TARGET)
136 TARGETS = $(CMD_TARGETS)
140 all_cmd: $(CMD_TARGETS)
143 $(Q)$(MAKE) $(build)=libtraceevent
145 $(OUTPUT)libtraceevent.so.$(EVENT_PARSE_VERSION): $(TE_IN)
146 $(QUIET_LINK)$(CC) --shared $(LDFLAGS) $^ -Wl,-soname,libtraceevent.so.$(EP_VERSION) -o $@
147 @ln -sf $(@F) $(OUTPUT)libtraceevent.so
148 @ln -sf $(@F) $(OUTPUT)libtraceevent.so.$(EP_VERSION)
150 $(OUTPUT)libtraceevent.a: $(TE_IN)
151 $(QUIET_LINK)$(RM) $@; $(AR) rcs $@ $^
153 $(OUTPUT)%.so: $(OUTPUT)%-in.o
154 $(QUIET_LINK)$(CC) $(CFLAGS) -shared $(LDFLAGS) -nostartfiles -o $@ $^
156 define make_version.h
157 (echo '/* This file is automatically generated. Do not modify. */'; \
158 echo \#define VERSION_CODE $(shell \
159 expr $(VERSION) \* 256 + $(PATCHLEVEL)); \
160 echo '#define EXTRAVERSION ' $(EXTRAVERSION); \
161 echo '#define VERSION_STRING "'$(VERSION).$(PATCHLEVEL).$(EXTRAVERSION)'"'; \
162 echo '#define FILE_VERSION '$(FILE_VERSION); \
166 define update_version.h
167 ($(call make_version.h, $@.tmp); \
168 if [ -r $@ ] && cmp -s $@ $@.tmp; then \
177 $(Q)$(N)$(call update_version.h)
179 VERSION_FILES = ep_version.h
183 if [ -r $@ ] && cmp -s $@ $@.tmp; then \
193 find . -name '*.[ch]' | xargs ctags --extra=+f --c-kinds=+px \
194 --regex-c++='/_PE\(([^,)]*).*/TEP_ERRNO__\1/'
198 find . -name '*.[ch]' | xargs etags \
199 --regex='/_PE(\([^,)]*\).*/TEP_ERRNO__\1/'
201 define do_install_mkdir
202 if [ ! -d '$(DESTDIR_SQ)$1' ]; then \
203 $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$1'; \
208 $(call do_install_mkdir,$2); \
209 $(INSTALL) $(if $3,-m $3,) $1 '$(DESTDIR_SQ)$2'
212 PKG_CONFIG_SOURCE_FILE = libtraceevent.pc
213 PKG_CONFIG_FILE := $(addprefix $(OUTPUT),$(PKG_CONFIG_SOURCE_FILE))
214 define do_install_pkgconfig_file
215 if [ -n "${pkgconfig_dir}" ]; then \
216 cp -f ${PKG_CONFIG_SOURCE_FILE}.template ${PKG_CONFIG_FILE}; \
217 sed -i "s|INSTALL_PREFIX|${1}|g" ${PKG_CONFIG_FILE}; \
218 sed -i "s|LIB_VERSION|${EVENT_PARSE_VERSION}|g" ${PKG_CONFIG_FILE}; \
219 sed -i "s|LIB_DIR|${libdir}|g" ${PKG_CONFIG_FILE}; \
220 sed -i "s|HEADER_DIR|$(includedir)|g" ${PKG_CONFIG_FILE}; \
221 $(call do_install,$(PKG_CONFIG_FILE),$(pkgconfig_dir),644); \
223 (echo Failed to locate pkg-config directory) 1>&2; \
227 install_lib: all_cmd install_plugins install_headers install_pkgconfig
228 $(call QUIET_INSTALL, $(LIB_TARGET)) \
229 $(call do_install_mkdir,$(libdir_SQ)); \
230 cp -fpR $(LIB_INSTALL) $(DESTDIR)$(libdir_SQ)
233 $(call QUIET_INSTALL, $(PKG_CONFIG_FILE)) \
234 $(call do_install_pkgconfig_file,$(prefix))
237 $(call QUIET_INSTALL, headers) \
238 $(call do_install,event-parse.h,$(includedir_SQ),644); \
239 $(call do_install,event-utils.h,$(includedir_SQ),644); \
240 $(call do_install,trace-seq.h,$(includedir_SQ),644); \
241 $(call do_install,kbuffer.h,$(includedir_SQ),644)
246 $(call QUIET_CLEAN, libtraceevent) \
247 $(RM) *.o *~ $(TARGETS) *.a *.so $(VERSION_FILES) .*.d .*.cmd; \
248 $(RM) TRACEEVENT-CFLAGS tags TAGS; \
249 $(RM) $(PKG_CONFIG_FILE)
253 $(call descend,Documentation)
257 $(call descend,Documentation,clean)
261 $(call descend,Documentation,install)
263 PHONY += doc-uninstall
265 $(call descend,Documentation,uninstall)
269 @echo 'Possible targets:'
271 @echo ' all - default, compile the library and the'\
273 @echo ' plugins - compile the plugins'
274 @echo ' install - install the library, the plugins,'\
275 'the header and pkgconfig files'
276 @echo ' clean - clean the library and the plugins object files'
277 @echo ' doc - compile the documentation files - man'\
278 'and html pages, in the Documentation directory'
279 @echo ' doc-clean - clean the documentation files'
280 @echo ' doc-install - install the man pages'
281 @echo ' doc-uninstall - uninstall the man pages'
286 $(call descend,plugins)
288 PHONY += install_plugins
290 $(call descend,plugins,install)
292 PHONY += clean_plugins
294 $(call descend,plugins,clean)
298 # Declare the contents of the .PHONY variable as phony. We keep that
299 # information in a variable so we can use it in if_changed and friends.