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