301 lines
8.1 KiB
Makefile
301 lines
8.1 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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# trace-cmd version
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EP_VERSION = 1
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EP_PATCHLEVEL = 1
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EP_EXTRAVERSION = 0
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# file format version
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FILE_VERSION = 6
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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,NM,$(CROSS_COMPILE)nm)
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$(call allow-override,PKG_CONFIG,pkg-config)
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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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libdir = $(prefix)/$(libdir_relative)
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man_dir = $(prefix)/share/man
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man_dir_SQ = '$(subst ','\'',$(man_dir))'
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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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includedir_relative = traceevent
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includedir = $(prefix)/include/$(includedir_relative)
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includedir_SQ = '$(subst ','\'',$(includedir))'
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export man_dir man_dir_SQ INSTALL
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export DESTDIR DESTDIR_SQ
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export EVENT_PARSE_VERSION
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include ../../scripts/Makefile.include
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# copy a bit from Linux kbuild
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ifeq ("$(origin V)", "command line")
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VERBOSE = $(V)
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endif
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ifndef VERBOSE
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VERBOSE = 0
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endif
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ifeq ($(srctree),)
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srctree := $(patsubst %/,%,$(dir $(CURDIR)))
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srctree := $(patsubst %/,%,$(dir $(srctree)))
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srctree := $(patsubst %/,%,$(dir $(srctree)))
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#$(info Determined 'srctree' to be $(srctree))
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endif
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export prefix libdir src obj
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# Shell quotes
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libdir_SQ = $(subst ','\'',$(libdir))
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libdir_relative_SQ = $(subst ','\'',$(libdir_relative))
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CONFIG_INCLUDES =
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CONFIG_LIBS =
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CONFIG_FLAGS =
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VERSION = $(EP_VERSION)
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PATCHLEVEL = $(EP_PATCHLEVEL)
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EXTRAVERSION = $(EP_EXTRAVERSION)
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OBJ = $@
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N =
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EVENT_PARSE_VERSION = $(EP_VERSION).$(EP_PATCHLEVEL).$(EP_EXTRAVERSION)
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LIB_TARGET = libtraceevent.a libtraceevent.so.$(EVENT_PARSE_VERSION)
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LIB_INSTALL = libtraceevent.a libtraceevent.so*
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LIB_INSTALL := $(addprefix $(OUTPUT),$(LIB_INSTALL))
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INCLUDES = -I. -I $(srctree)/tools/include $(CONFIG_INCLUDES)
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# Set compile option CFLAGS
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ifdef EXTRA_CFLAGS
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CFLAGS := $(EXTRA_CFLAGS)
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else
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CFLAGS := -g -Wall
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endif
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# Append required CFLAGS
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override CFLAGS += -fPIC
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override CFLAGS += $(CONFIG_FLAGS) $(INCLUDES) $(PLUGIN_DIR_SQ)
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override CFLAGS += $(udis86-flags) -D_GNU_SOURCE
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ifeq ($(VERBOSE),1)
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Q =
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else
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Q = @
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endif
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# Disable command line variables (CFLAGS) override from top
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# level Makefile (perf), otherwise build Makefile will get
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# the same command line setup.
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MAKEOVERRIDES=
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export srctree OUTPUT CC LD CFLAGS V
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build := -f $(srctree)/tools/build/Makefile.build dir=. obj
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TE_IN := $(OUTPUT)libtraceevent-in.o
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LIB_TARGET := $(addprefix $(OUTPUT),$(LIB_TARGET))
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CMD_TARGETS = $(LIB_TARGET)
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TARGETS = $(CMD_TARGETS)
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all: all_cmd plugins
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all_cmd: $(CMD_TARGETS)
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$(TE_IN): force
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$(Q)$(MAKE) $(build)=libtraceevent
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$(OUTPUT)libtraceevent.so.$(EVENT_PARSE_VERSION): $(TE_IN)
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$(QUIET_LINK)$(CC) --shared $(LDFLAGS) $^ -Wl,-soname,libtraceevent.so.$(EP_VERSION) -o $@
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@ln -sf $(@F) $(OUTPUT)libtraceevent.so
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@ln -sf $(@F) $(OUTPUT)libtraceevent.so.$(EP_VERSION)
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$(OUTPUT)libtraceevent.a: $(TE_IN)
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$(QUIET_LINK)$(RM) $@; $(AR) rcs $@ $^
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$(OUTPUT)%.so: $(OUTPUT)%-in.o
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$(QUIET_LINK)$(CC) $(CFLAGS) -shared $(LDFLAGS) -nostartfiles -o $@ $^
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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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echo '#define FILE_VERSION '$(FILE_VERSION); \
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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 $@; \
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fi);
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endef
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ep_version.h: force
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$(Q)$(N)$(call update_version.h)
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VERSION_FILES = ep_version.h
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define update_dir
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(echo $1 > $@.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 $@; \
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fi);
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endef
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tags: force
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$(RM) tags
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find . -name '*.[ch]' | xargs ctags --extra=+f --c-kinds=+px \
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--regex-c++='/_PE\(([^,)]*).*/TEP_ERRNO__\1/'
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TAGS: force
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$(RM) TAGS
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find . -name '*.[ch]' | xargs etags \
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--regex='/_PE(\([^,)]*\).*/TEP_ERRNO__\1/'
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define do_install_mkdir
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if [ ! -d '$(DESTDIR_SQ)$1' ]; then \
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$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$1'; \
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fi
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endef
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define do_install
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$(call do_install_mkdir,$2); \
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$(INSTALL) $(if $3,-m $3,) $1 '$(DESTDIR_SQ)$2'
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endef
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PKG_CONFIG_SOURCE_FILE = libtraceevent.pc
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PKG_CONFIG_FILE := $(addprefix $(OUTPUT),$(PKG_CONFIG_SOURCE_FILE))
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define do_install_pkgconfig_file
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if [ -n "${pkgconfig_dir}" ]; then \
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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" ${PKG_CONFIG_FILE}; \
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sed -i "s|LIB_VERSION|${EVENT_PARSE_VERSION}|g" ${PKG_CONFIG_FILE}; \
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sed -i "s|LIB_DIR|${libdir}|g" ${PKG_CONFIG_FILE}; \
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sed -i "s|HEADER_DIR|$(includedir)|g" ${PKG_CONFIG_FILE}; \
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$(call do_install,$(PKG_CONFIG_FILE),$(pkgconfig_dir),644); \
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else \
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(echo Failed to locate pkg-config directory) 1>&2; \
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fi
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endef
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install_lib: all_cmd install_plugins install_headers install_pkgconfig
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$(call QUIET_INSTALL, $(LIB_TARGET)) \
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$(call do_install_mkdir,$(libdir_SQ)); \
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cp -fpR $(LIB_INSTALL) $(DESTDIR)$(libdir_SQ)
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install_pkgconfig:
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$(call QUIET_INSTALL, $(PKG_CONFIG_FILE)) \
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$(call do_install_pkgconfig_file,$(prefix))
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install_headers:
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$(call QUIET_INSTALL, headers) \
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$(call do_install,event-parse.h,$(includedir_SQ),644); \
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$(call do_install,event-utils.h,$(includedir_SQ),644); \
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$(call do_install,trace-seq.h,$(includedir_SQ),644); \
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$(call do_install,kbuffer.h,$(includedir_SQ),644)
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install: install_lib
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clean: clean_plugins
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$(call QUIET_CLEAN, libtraceevent) \
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$(RM) *.o *~ $(TARGETS) *.a *.so $(VERSION_FILES) .*.d .*.cmd; \
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$(RM) TRACEEVENT-CFLAGS tags TAGS; \
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$(RM) $(PKG_CONFIG_FILE)
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PHONY += doc
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doc:
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$(call descend,Documentation)
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PHONY += doc-clean
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doc-clean:
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$(call descend,Documentation,clean)
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PHONY += doc-install
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doc-install:
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$(call descend,Documentation,install)
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PHONY += doc-uninstall
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doc-uninstall:
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$(call descend,Documentation,uninstall)
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PHONY += help
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help:
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@echo 'Possible targets:'
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@echo''
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@echo ' all - default, compile the library and the'\
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'plugins'
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@echo ' plugins - compile the plugins'
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@echo ' install - install the library, the plugins,'\
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'the header and pkgconfig files'
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@echo ' clean - clean the library and the plugins object files'
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@echo ' doc - compile the documentation files - man'\
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'and html pages, in the Documentation directory'
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@echo ' doc-clean - clean the documentation files'
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@echo ' doc-install - install the man pages'
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@echo ' doc-uninstall - uninstall the man pages'
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@echo''
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PHONY += plugins
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plugins:
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$(call descend,plugins)
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PHONY += install_plugins
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install_plugins:
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$(call descend,plugins,install)
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PHONY += clean_plugins
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clean_plugins:
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$(call descend,plugins,clean)
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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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