diff options
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 397 |
1 files changed, 397 insertions, 0 deletions
diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..61ed976 --- /dev/null +++ b/Makefile @@ -0,0 +1,397 @@ +# SPDX-License-Identifier: LGPL-2.1 +# libtracefs version +TFS_VERSION = 1 +TFS_PATCHLEVEL = 6 +TFS_EXTRAVERSION = 4 +TRACEFS_VERSION = $(TFS_VERSION).$(TFS_PATCHLEVEL).$(TFS_EXTRAVERSION) + +export TFS_VERSION +export TFS_PATCHLEVEL +export TFS_EXTRAVERSION +export TRACEFS_VERSION + +LIBTRACEEVENT_MIN_VERSION = 1.3 + +# taken from trace-cmd +MAKEFLAGS += --no-print-directory + +# Makefiles suck: This macro sets a default value of $(2) for the +# variable named by $(1), unless the variable has been set by +# environment or command line. This is necessary for CC and AR +# because make sets default values, so the simpler ?= approach +# won't work as expected. +define allow-override + $(if $(or $(findstring environment,$(origin $(1))),\ + $(findstring command line,$(origin $(1)))),,\ + $(eval $(1) = $(2))) +endef + +# Allow setting CC and AR, or setting CROSS_COMPILE as a prefix. +$(call allow-override,CC,$(CROSS_COMPILE)gcc) +$(call allow-override,AR,$(CROSS_COMPILE)ar) +$(call allow-override,PKG_CONFIG,pkg-config) +$(call allow-override,LD_SO_CONF_PATH,/etc/ld.so.conf.d/) +$(call allow-override,LDCONFIG,ldconfig) + +EXT = -std=gnu99 +INSTALL = install + +# Use DESTDIR for installing into a different root directory. +# This is useful for building a package. The program will be +# installed in this directory as if it was the root directory. +# Then the build tool can move it later. +DESTDIR ?= +DESTDIR_SQ = '$(subst ','\'',$(DESTDIR))' + +LP64 := $(shell echo __LP64__ | ${CC} ${CFLAGS} -E -x c - | tail -n 1) +ifeq ($(LP64), 1) + libdir_relative_temp = lib64 +else + libdir_relative_temp = lib +endif + +libdir_relative ?= $(libdir_relative_temp) +prefix ?= /usr/local +man_dir ?= $(prefix)/share/man +man_dir_SQ = '$(subst ','\'',$(man_dir))' +libdir ?= $(prefix)/$(libdir_relative) +libdir_SQ = '$(subst ','\'',$(libdir))' +includedir_relative ?= include/tracefs +includedir ?= $(prefix)/$(includedir_relative) +includedir_SQ = '$(subst ','\'',$(includedir))' +pkgconfig_dir ?= $(word 1,$(shell $(PKG_CONFIG) \ + --variable pc_path pkg-config | tr ":" " ")) + +TEST_LIBTRACEEVENT = $(shell sh -c "$(PKG_CONFIG) --atleast-version $(LIBTRACEEVENT_MIN_VERSION) libtraceevent > /dev/null 2>&1 && echo y") + +ifeq ("$(TEST_LIBTRACEEVENT)", "y") +LIBTRACEEVENT_INCLUDES = $(shell sh -c "$(PKG_CONFIG) --cflags libtraceevent") +LIBTRACEEVENT_LIBS = $(shell sh -c "$(PKG_CONFIG) --libs libtraceevent") +else + ifneq ($(MAKECMDGOALS),clean) + $(error libtraceevent.so minimum version of $(LIBTRACEEVENT_MIN_VERSION) not installed) + endif +endif + +etcdir ?= /etc +etcdir_SQ = '$(subst ','\'',$(etcdir))' + +export man_dir man_dir_SQ html_install html_install_SQ INSTALL +export img_install img_install_SQ +export DESTDIR DESTDIR_SQ + +pound := \# + +HELP_DIR = -DHELP_DIR=$(html_install) +HELP_DIR_SQ = '$(subst ','\'',$(HELP_DIR))' +#' emacs highlighting gets confused by the above escaped quote. + +BASH_COMPLETE_DIR ?= $(etcdir)/bash_completion.d + +# copy a bit from Linux kbuild + +ifeq ("$(origin V)", "command line") + VERBOSE = $(V) +endif +ifndef VERBOSE + VERBOSE = 0 +endif + +SILENT := $(if $(findstring s,$(filter-out --%,$(MAKEFLAGS))),1) + +# $(call test-build, snippet, ret) -> ret if snippet compiles +# -> empty otherwise +test-build = $(if $(shell sh -c 'echo "$(1)" | \ + $(CC) -o /dev/null -c -x c - > /dev/null 2>&1 && echo y'), $2) + +ifeq ("$(origin O)", "command line") + + saved-output := $(O) + BUILD_OUTPUT := $(shell cd $(O) && /bin/pwd) + $(if $(BUILD_OUTPUT),, \ + $(error output directory "$(saved-output)" does not exist)) + +else + BUILD_OUTPUT = $(CURDIR) +endif + +srctree := $(if $(BUILD_SRC),$(BUILD_SRC),$(CURDIR)) +objtree := $(BUILD_OUTPUT) +src := $(srctree) +obj := $(objtree) +bdir := $(obj)/lib + +export prefix src obj bdir + +LIBTRACEFS_STATIC = $(bdir)/libtracefs.a +LIBTRACEFS_SHARED = $(bdir)/libtracefs.so.$(TRACEFS_VERSION) + +LIBTRACEFS_SHARED_SO = $(bdir)/libtracefs.so +LIBTRACEFS_SHARED_VERSION = $(bdir)/libtracefs.so.$(TFS_VERSION) + +PKG_CONFIG_SOURCE_FILE = libtracefs.pc +PKG_CONFIG_FILE := $(addprefix $(obj)/,$(PKG_CONFIG_SOURCE_FILE)) + +LPTHREAD ?= -lpthread +LIBS = $(LIBTRACEEVENT_LIBS) $(LPTHREAD) + +export LIBS +export LIBTRACEFS_STATIC LIBTRACEFS_SHARED +export LIBTRACEEVENT_LIBS LIBTRACEEVENT_INCLUDES +export LIBTRACEFS_SHARED_SO LIBTRACEFS_SHARED_VERSION + +export Q SILENT VERBOSE EXT + +# Include the utils +include scripts/utils.mk + +INCLUDES = -I$(src)/include +INCLUDES += -I$(src)/include/tracefs + +include $(src)/scripts/features.mk + +# Set compile option CFLAGS if not set elsewhere +CFLAGS ?= -g -Wall +CPPFLAGS ?= +LDFLAGS ?= + +CUNIT_INSTALLED := $(shell if (printf "$(pound)include <CUnit/Basic.h>\n void main(){CU_initialize_registry();}" | $(CC) -x c - -lcunit -o /dev/null >/dev/null 2>&1) ; then echo 1; else echo 0 ; fi) +export CUNIT_INSTALLED + +export CFLAGS +export INCLUDES + +# Append required CFLAGS +override CFLAGS += -D_GNU_SOURCE $(LIBTRACEEVENT_INCLUDES) $(INCLUDES) + +# Make sure 32 bit stat() works on large file systems +override CFLAGS += -D_FILE_OFFSET_BITS=64 + +all: all_cmd + +LIB_TARGET = libtracefs.a libtracefs.so.$(TRACEFS_VERSION) +LIB_INSTALL = libtracefs.a libtracefs.so* +LIB_INSTALL := $(addprefix $(bdir)/,$(LIB_INSTALL)) + +TARGETS = libtracefs.so libtracefs.a + +all_cmd: $(TARGETS) $(PKG_CONFIG_FILE) + +libtracefs.a: $(bdir) $(LIBTRACEFS_STATIC) +libtracefs.so: $(bdir) $(LIBTRACEFS_SHARED) + +libs: libtracefs.a libtracefs.so + +VALGRIND = $(shell which valgrind) +UTEST_DIR = utest +UTEST_BINARY = trace-utest + +test: force $(LIBTRACEFS_STATIC) +ifneq ($(CUNIT_INSTALLED),1) + $(error CUnit framework not installed, cannot build unit tests)) +endif + $(Q)$(call descend,$(src)/$(UTEST_DIR),$@) + +test_mem: test +ifeq (, $(VALGRIND)) + $(error "No valgrind in $(PATH), cannot run memory test") +endif +ifneq ($(shell id -u), 0) + $(error "The unit test should be run as root, as it reuqires full access to tracefs") +endif + CK_FORK=no LD_LIBRARY_PATH=$(bdir) $(VALGRIND) \ + --show-leak-kinds=all --leak-resolution=high \ + --leak-check=full --show-possibly-lost=yes \ + --track-origins=yes -s \ + $(src)/$(UTEST_DIR)/$(UTEST_BINARY) + +define find_tag_files + find $(src) -name '\.pc' -prune -o -name '*\.[ch]' -print -o -name '*\.[ch]pp' \ + ! -name '\.#' -print +endef + +define do_make_pkgconfig_file + cp -f ${PKG_CONFIG_SOURCE_FILE}.template ${PKG_CONFIG_FILE}; \ + sed -i "s|INSTALL_PREFIX|${1}|g" ${PKG_CONFIG_FILE}; \ + sed -i "s|LIB_VERSION|${TRACEFS_VERSION}|g" ${PKG_CONFIG_FILE}; \ + sed -i "s|LIB_DIR|${libdir_relative}|g" ${PKG_CONFIG_FILE}; \ + sed -i "s|HEADER_DIR|$(includedir_relative)|g" ${PKG_CONFIG_FILE}; \ + sed -i "s|LIBTRACEEVENT_MIN|$(LIBTRACEEVENT_MIN_VERSION)|g" ${PKG_CONFIG_FILE}; +endef + +BUILD_PREFIX := $(BUILD_OUTPUT)/build_prefix + +VERSION_FILE = tfs_version.h + +$(BUILD_PREFIX): force + $(Q)$(call build_prefix,$(prefix)) + +$(PKG_CONFIG_FILE) : ${PKG_CONFIG_SOURCE_FILE}.template $(BUILD_PREFIX) $(VERSION_FILE) + $(Q) $(call do_make_pkgconfig_file,$(prefix)) + +VIM_TAGS = $(obj)/tags +EMACS_TAGS = $(obj)/TAGS +CSCOPE_TAGS = $(obj)/cscope + +$(VIM_TAGS): force + $(RM) $@ + $(call find_tag_files) | (cd $(obj) && xargs ctags --extra=+f --c-kinds=+px) + +$(EMACS_TAGS): force + $(RM) $@ + $(call find_tag_files) | (cd $(obj) && xargs etags) + +$(CSCOPE_TAGS): force + $(RM) $(obj)/cscope* + $(call find_tag_files) | cscope -b -q + +tags: $(VIM_TAGS) +TAGS: $(EMACS_TAGS) +cscope: $(CSCOPE_TAGS) + +ifeq ("$(DESTDIR)", "") +# If DESTDIR is not defined, then test if after installing the library +# and running ldconfig, if the library is visible by ld.so. +# If not, add the path to /etc/ld.so.conf.d/trace.conf and run ldconfig again. +define install_ld_config + if $(LDCONFIG); then \ + if ! grep -q "^$(libdir)$$" $(LD_SO_CONF_PATH)/* ; then \ + $(CC) -o $(objtree)/test $(srctree)/test.c -I $(includedir_SQ) \ + -L $(libdir_SQ) -ltracefs &> /dev/null; \ + if ! $(objtree)/test &> /dev/null; then \ + $(call print_install, trace.conf, $(LD_SO_CONF_PATH)) \ + echo $(libdir_SQ) >> $(LD_SO_CONF_PATH)/trace.conf; \ + $(LDCONFIG); \ + fi; \ + $(RM) $(objtree)/test; \ + fi; \ + fi +endef +else +# If installing to a location for another machine or package, do not bother +# with running ldconfig. +define install_ld_config +endef +endif # DESTDIR = "" + +install_libs: libs install_pkgconfig + $(Q)$(call do_install,$(LIBTRACEFS_SHARED),$(libdir_SQ)); \ + cp -fpR $(LIB_INSTALL) $(DESTDIR)$(libdir_SQ) + $(Q)$(call do_install,$(src)/include/tracefs.h,$(includedir_SQ),644) + $(Q)$(call install_ld_config) + +install: install_libs + +install_pkgconfig: $(PKG_CONFIG_FILE) + $(Q)$(call , $(PKG_CONFIG_FILE)) \ + $(call do_install_pkgconfig_file,$(prefix)) + +doc: check_doc + $(Q)$(call descend,$(src)/Documentation,all) + +doc_clean: + $(Q)$(call descend,$(src)/Documentation,clean) + +install_doc: + $(Q)$(call descend,$(src)/Documentation,install) + +check_doc: force + $(Q)$(src)/check-manpages.sh $(src)/Documentation + +define build_uninstall_script + $(Q)mkdir $(BUILD_OUTPUT)/tmp_build + $(Q)$(MAKE) -C $(src) DESTDIR=$(BUILD_OUTPUT)/tmp_build/ O=$(BUILD_OUTPUT) $1 > /dev/null + $(Q)find $(BUILD_OUTPUT)/tmp_build ! -type d -printf "%P\n" > $(BUILD_OUTPUT)/build_$2 + $(Q)$(RM) -rf $(BUILD_OUTPUT)/tmp_build +endef + +build_uninstall: $(BUILD_PREFIX) + $(call build_uninstall_script,install,uninstall) + +$(BUILD_OUTPUT)/build_uninstall: build_uninstall + +define uninstall_file + if [ -f $(DESTDIR)/$1 -o -h $(DESTDIR)/$1 ]; then \ + $(call print_uninstall,$(DESTDIR)/$1)$(RM) $(DESTDIR)/$1; \ + fi; +endef + +uninstall: $(BUILD_OUTPUT)/build_uninstall + @$(foreach file,$(shell cat $(BUILD_OUTPUT)/build_uninstall),$(call uninstall_file,$(file))) + +PHONY += force +force: + +# Declare the contents of the .PHONY variable as phony. We keep that +# information in a variable so we can use it in if_changed and friends. +.PHONY: $(PHONY) + +DEFAULT_TARGET = $(LIBTRACEFS_STATIC) + +OBJS = +OBJS += tracefs-utils.o +OBJS += tracefs-instance.o +OBJS += tracefs-events.o + +OBJS := $(OBJS:%.o=$(bdir)/%.o) + +all: $(DEFAULT_TARGET) + +$(bdir): + @mkdir -p $(bdir) + +VERSION = $(TFS_VERSION) +PATCHLEVEL = $(TFS_PATCHLEVEL) +EXTRAVERSION = $(TFS_EXTRAVERSION) + +define make_version.h + (echo '/* This file is automatically generated. Do not modify. */'; \ + echo \#define VERSION_CODE $(shell \ + expr $(VERSION) \* 256 + $(PATCHLEVEL)); \ + echo '#define EXTRAVERSION ' $(EXTRAVERSION); \ + echo '#define VERSION_STRING "'$(VERSION).$(PATCHLEVEL).$(EXTRAVERSION)'"'; \ + ) > $1 +endef + +define update_version.h + ($(call make_version.h, $@.tmp); \ + if [ -r $@ ] && cmp -s $@ $@.tmp; then \ + rm -f $@.tmp; \ + else \ + echo ' UPDATE $@'; \ + mv -f $@.tmp $@; \ + fi); +endef + +$(VERSION_FILE): force + $(Q)$(call update_version.h) + +$(LIBTRACEFS_STATIC): force + $(Q)$(call descend,$(src)/src,$@) + +$(bdir)/libtracefs.so.$(TRACEFS_VERSION): force + $(Q)$(call descend,$(src)/src,libtracefs.so) + +samples/sqlhist: libtracefs.a + $(Q)$(call descend,$(src)/samples,sqlhist) + +sqlhist: samples/sqlhist + +samples: libtracefs.a force + $(Q)$(call descend,$(src)/samples,all) + +clean: + $(Q)$(call descend_clean,utest) + $(Q)$(call descend_clean,src) + $(Q)$(call descend_clean,samples) + $(Q)$(call do_clean, \ + $(TARGETS) $(bdir)/*.a $(bdir)/*.so $(bdir)/*.so.* $(bdir)/*.o $(bdir)/.*.d \ + $(PKG_CONFIG_FILE) \ + $(VERSION_FILE) \ + $(BUILD_PREFIX)) + +.PHONY: clean + +# libtracefs.a and libtracefs.so would concurrently enter the same directory - +# a recipe for collisions. +.NOTPARALLEL: |