1# SPDX-License-Identifier: GPL-2.0 2# trace-cmd version 3EP_VERSION = 1 4EP_PATCHLEVEL = 1 5EP_EXTRAVERSION = 0 6 7# file format version 8FILE_VERSION = 6 9 10MAKEFLAGS += --no-print-directory 11 12 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. 18define allow-override 19 $(if $(or $(findstring environment,$(origin $(1))),\ 20 $(findstring command line,$(origin $(1)))),,\ 21 $(eval $(1) = $(2))) 22endef 23 24# Allow setting CC and AR, or setting CROSS_COMPILE as a prefix. 25$(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) 29 30EXT = -std=gnu99 31INSTALL = install 32 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. 37DESTDIR ?= 38DESTDIR_SQ = '$(subst ','\'',$(DESTDIR))' 39 40LP64 := $(shell echo __LP64__ | ${CC} ${CFLAGS} -E -x c - | tail -n 1) 41ifeq ($(LP64), 1) 42 libdir_relative = lib64 43else 44 libdir_relative = lib 45endif 46 47prefix ?= /usr/local 48libdir = $(prefix)/$(libdir_relative) 49man_dir = $(prefix)/share/man 50man_dir_SQ = '$(subst ','\'',$(man_dir))' 51pkgconfig_dir ?= $(word 1,$(shell $(PKG_CONFIG) \ 52 --variable pc_path pkg-config | tr ":" " ")) 53includedir_relative = traceevent 54includedir = $(prefix)/include/$(includedir_relative) 55includedir_SQ = '$(subst ','\'',$(includedir))' 56 57export man_dir man_dir_SQ INSTALL 58export DESTDIR DESTDIR_SQ 59export EVENT_PARSE_VERSION 60 61include ../../scripts/Makefile.include 62 63# copy a bit from Linux kbuild 64 65ifeq ("$(origin V)", "command line") 66 VERBOSE = $(V) 67endif 68ifndef VERBOSE 69 VERBOSE = 0 70endif 71 72ifeq ($(srctree),) 73srctree := $(patsubst %/,%,$(dir $(CURDIR))) 74srctree := $(patsubst %/,%,$(dir $(srctree))) 75srctree := $(patsubst %/,%,$(dir $(srctree))) 76#$(info Determined 'srctree' to be $(srctree)) 77endif 78 79export prefix libdir src obj 80 81# Shell quotes 82libdir_SQ = $(subst ','\'',$(libdir)) 83libdir_relative_SQ = $(subst ','\'',$(libdir_relative)) 84 85CONFIG_INCLUDES = 86CONFIG_LIBS = 87CONFIG_FLAGS = 88 89VERSION = $(EP_VERSION) 90PATCHLEVEL = $(EP_PATCHLEVEL) 91EXTRAVERSION = $(EP_EXTRAVERSION) 92 93OBJ = $@ 94N = 95 96EVENT_PARSE_VERSION = $(EP_VERSION).$(EP_PATCHLEVEL).$(EP_EXTRAVERSION) 97 98LIB_TARGET = libtraceevent.a libtraceevent.so.$(EVENT_PARSE_VERSION) 99LIB_INSTALL = libtraceevent.a libtraceevent.so* 100LIB_INSTALL := $(addprefix $(OUTPUT),$(LIB_INSTALL)) 101 102INCLUDES = -I. -I $(srctree)/tools/include $(CONFIG_INCLUDES) 103 104# Set compile option CFLAGS 105ifdef EXTRA_CFLAGS 106 CFLAGS := $(EXTRA_CFLAGS) 107else 108 CFLAGS := -g -Wall 109endif 110 111# Append required CFLAGS 112override CFLAGS += -fPIC 113override CFLAGS += $(CONFIG_FLAGS) $(INCLUDES) $(PLUGIN_DIR_SQ) 114override CFLAGS += $(udis86-flags) -D_GNU_SOURCE 115 116ifeq ($(VERBOSE),1) 117 Q = 118else 119 Q = @ 120endif 121 122# Disable command line variables (CFLAGS) override from top 123# level Makefile (perf), otherwise build Makefile will get 124# the same command line setup. 125MAKEOVERRIDES= 126 127export srctree OUTPUT CC LD CFLAGS V 128build := -f $(srctree)/tools/build/Makefile.build dir=. obj 129 130TE_IN := $(OUTPUT)libtraceevent-in.o 131LIB_TARGET := $(addprefix $(OUTPUT),$(LIB_TARGET)) 132 133CMD_TARGETS = $(LIB_TARGET) 134 135TARGETS = $(CMD_TARGETS) 136 137all: all_cmd plugins 138 139all_cmd: $(CMD_TARGETS) 140 141$(TE_IN): force 142 $(Q)$(MAKE) $(build)=libtraceevent 143 144$(OUTPUT)libtraceevent.so.$(EVENT_PARSE_VERSION): $(TE_IN) 145 $(QUIET_LINK)$(CC) --shared $(LDFLAGS) $^ -Wl,-soname,libtraceevent.so.$(EP_VERSION) -o $@ 146 @ln -sf $(@F) $(OUTPUT)libtraceevent.so 147 @ln -sf $(@F) $(OUTPUT)libtraceevent.so.$(EP_VERSION) 148 149$(OUTPUT)libtraceevent.a: $(TE_IN) 150 $(QUIET_LINK)$(RM) $@; $(AR) rcs $@ $^ 151 152$(OUTPUT)%.so: $(OUTPUT)%-in.o 153 $(QUIET_LINK)$(CC) $(CFLAGS) -shared $(LDFLAGS) -nostartfiles -o $@ $^ 154 155define make_version.h 156 (echo '/* This file is automatically generated. Do not modify. */'; \ 157 echo \#define VERSION_CODE $(shell \ 158 expr $(VERSION) \* 256 + $(PATCHLEVEL)); \ 159 echo '#define EXTRAVERSION ' $(EXTRAVERSION); \ 160 echo '#define VERSION_STRING "'$(VERSION).$(PATCHLEVEL).$(EXTRAVERSION)'"'; \ 161 echo '#define FILE_VERSION '$(FILE_VERSION); \ 162 ) > $1 163endef 164 165define update_version.h 166 ($(call make_version.h, $@.tmp); \ 167 if [ -r $@ ] && cmp -s $@ $@.tmp; then \ 168 rm -f $@.tmp; \ 169 else \ 170 echo ' UPDATE $@'; \ 171 mv -f $@.tmp $@; \ 172 fi); 173endef 174 175ep_version.h: force 176 $(Q)$(N)$(call update_version.h) 177 178VERSION_FILES = ep_version.h 179 180define update_dir 181 (echo $1 > $@.tmp; \ 182 if [ -r $@ ] && cmp -s $@ $@.tmp; then \ 183 rm -f $@.tmp; \ 184 else \ 185 echo ' UPDATE $@'; \ 186 mv -f $@.tmp $@; \ 187 fi); 188endef 189 190tags: force 191 $(RM) tags 192 find . -name '*.[ch]' | xargs ctags --extra=+f --c-kinds=+px \ 193 --regex-c++='/_PE\(([^,)]*).*/TEP_ERRNO__\1/' 194 195TAGS: force 196 $(RM) TAGS 197 find . -name '*.[ch]' | xargs etags \ 198 --regex='/_PE(\([^,)]*\).*/TEP_ERRNO__\1/' 199 200define do_install_mkdir 201 if [ ! -d '$(DESTDIR_SQ)$1' ]; then \ 202 $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$1'; \ 203 fi 204endef 205 206define do_install 207 $(call do_install_mkdir,$2); \ 208 $(INSTALL) $(if $3,-m $3,) $1 '$(DESTDIR_SQ)$2' 209endef 210 211PKG_CONFIG_SOURCE_FILE = libtraceevent.pc 212PKG_CONFIG_FILE := $(addprefix $(OUTPUT),$(PKG_CONFIG_SOURCE_FILE)) 213define do_install_pkgconfig_file 214 if [ -n "${pkgconfig_dir}" ]; then \ 215 cp -f ${PKG_CONFIG_SOURCE_FILE}.template ${PKG_CONFIG_FILE}; \ 216 sed -i "s|INSTALL_PREFIX|${1}|g" ${PKG_CONFIG_FILE}; \ 217 sed -i "s|LIB_VERSION|${EVENT_PARSE_VERSION}|g" ${PKG_CONFIG_FILE}; \ 218 sed -i "s|LIB_DIR|${libdir}|g" ${PKG_CONFIG_FILE}; \ 219 sed -i "s|HEADER_DIR|$(includedir)|g" ${PKG_CONFIG_FILE}; \ 220 $(call do_install,$(PKG_CONFIG_FILE),$(pkgconfig_dir),644); \ 221 else \ 222 (echo Failed to locate pkg-config directory) 1>&2; \ 223 fi 224endef 225 226install_lib: all_cmd install_plugins install_headers install_pkgconfig 227 $(call QUIET_INSTALL, $(LIB_TARGET)) \ 228 $(call do_install_mkdir,$(libdir_SQ)); \ 229 cp -fpR $(LIB_INSTALL) $(DESTDIR)$(libdir_SQ) 230 231install_pkgconfig: 232 $(call QUIET_INSTALL, $(PKG_CONFIG_FILE)) \ 233 $(call do_install_pkgconfig_file,$(prefix)) 234 235install_headers: 236 $(call QUIET_INSTALL, headers) \ 237 $(call do_install,event-parse.h,$(DESTDIR)$(includedir_SQ),644); \ 238 $(call do_install,event-utils.h,$(DESTDIR)$(includedir_SQ),644); \ 239 $(call do_install,trace-seq.h,$(DESTDIR)$(includedir_SQ),644); \ 240 $(call do_install,kbuffer.h,$(DESTDIR)$(includedir_SQ),644) 241 242install: install_lib 243 244clean: clean_plugins 245 $(call QUIET_CLEAN, libtraceevent) \ 246 $(RM) *.o *~ $(TARGETS) *.a *.so $(VERSION_FILES) .*.d .*.cmd; \ 247 $(RM) TRACEEVENT-CFLAGS tags TAGS; \ 248 $(RM) $(PKG_CONFIG_FILE) 249 250PHONY += doc 251doc: 252 $(call descend,Documentation) 253 254PHONY += doc-clean 255doc-clean: 256 $(call descend,Documentation,clean) 257 258PHONY += doc-install 259doc-install: 260 $(call descend,Documentation,install) 261 262PHONY += doc-uninstall 263doc-uninstall: 264 $(call descend,Documentation,uninstall) 265 266PHONY += help 267help: 268 @echo 'Possible targets:' 269 @echo'' 270 @echo ' all - default, compile the library and the'\ 271 'plugins' 272 @echo ' plugins - compile the plugins' 273 @echo ' install - install the library, the plugins,'\ 274 'the header and pkgconfig files' 275 @echo ' clean - clean the library and the plugins object files' 276 @echo ' doc - compile the documentation files - man'\ 277 'and html pages, in the Documentation directory' 278 @echo ' doc-clean - clean the documentation files' 279 @echo ' doc-install - install the man pages' 280 @echo ' doc-uninstall - uninstall the man pages' 281 @echo'' 282 283PHONY += plugins 284plugins: 285 $(call descend,plugins) 286 287PHONY += install_plugins 288install_plugins: 289 $(call descend,plugins,install) 290 291PHONY += clean_plugins 292clean_plugins: 293 $(call descend,plugins,clean) 294 295force: 296 297# Declare the contents of the .PHONY variable as phony. We keep that 298# information in a variable so we can use it in if_changed and friends. 299.PHONY: $(PHONY) 300