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7c422f5572
Adding the fixdep target into the Makefile.include to ease up building of fixdep helper, that needs to be built before we dive in to the build itself. The user can invoke the fixdep target to build the helper. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1443004442-32660-8-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
161 lines
4.0 KiB
Makefile
161 lines
4.0 KiB
Makefile
# file format version
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FILE_VERSION = 1
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LIBLOCKDEP_VERSION=$(shell make --no-print-directory -sC ../../.. kernelversion)
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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) = $(2)))
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endef
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# Allow setting CC and AR and LD, or setting CROSS_COMPILE as a prefix.
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$(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,LD,$(CROSS_COMPILE)ld)
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INSTALL = install
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# Use DESTDIR for installing into a different root directory.
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# This is useful for building a package. The program will be
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# installed in this directory as if it was the root directory.
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# Then the build tool can move it later.
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DESTDIR ?=
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DESTDIR_SQ = '$(subst ','\'',$(DESTDIR))'
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prefix ?= /usr/local
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libdir_relative = lib
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libdir = $(prefix)/$(libdir_relative)
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bindir_relative = bin
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bindir = $(prefix)/$(bindir_relative)
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export DESTDIR DESTDIR_SQ INSTALL
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MAKEFLAGS += --no-print-directory
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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 $(shell pwd)))
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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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# Shell quotes
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libdir_SQ = $(subst ','\'',$(libdir))
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bindir_SQ = $(subst ','\'',$(bindir))
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LIB_IN := $(OUTPUT)liblockdep-in.o
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BIN_FILE = lockdep
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LIB_FILE = $(OUTPUT)liblockdep.a $(OUTPUT)liblockdep.so.$(LIBLOCKDEP_VERSION)
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CONFIG_INCLUDES =
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CONFIG_LIBS =
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CONFIG_FLAGS =
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OBJ = $@
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N =
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export Q VERBOSE
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INCLUDES = -I. -I./uinclude -I./include -I../../include $(CONFIG_INCLUDES)
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# Set compile option CFLAGS if not set elsewhere
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CFLAGS ?= -g -DCONFIG_LOCKDEP -DCONFIG_STACKTRACE -DCONFIG_PROVE_LOCKING -DBITS_PER_LONG=__WORDSIZE -DLIBLOCKDEP_VERSION='"$(LIBLOCKDEP_VERSION)"' -rdynamic -O0 -g
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CFLAGS += -fPIC
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override CFLAGS += $(CONFIG_FLAGS) $(INCLUDES) $(PLUGIN_DIR_SQ)
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ifeq ($(VERBOSE),1)
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Q =
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print_shared_lib_compile =
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print_install =
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else
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Q = @
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print_shared_lib_compile = echo ' LD '$(OBJ);
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print_static_lib_build = echo ' LD '$(OBJ);
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print_install = echo ' INSTALL '$1' to $(DESTDIR_SQ)$2';
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endif
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all:
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export srctree OUTPUT CC LD CFLAGS V
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include $(srctree)/tools/build/Makefile.include
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do_compile_shared_library = \
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($(print_shared_lib_compile) \
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$(CC) --shared $^ -o $@ -lpthread -ldl -Wl,-soname='"$@"';$(shell ln -s $@ liblockdep.so))
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do_build_static_lib = \
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($(print_static_lib_build) \
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$(RM) $@; $(AR) rcs $@ $^)
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CMD_TARGETS = $(LIB_FILE)
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TARGETS = $(CMD_TARGETS)
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all: fixdep all_cmd
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all_cmd: $(CMD_TARGETS)
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$(LIB_IN): force
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$(Q)$(MAKE) $(build)=liblockdep
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liblockdep.so.$(LIBLOCKDEP_VERSION): $(LIB_IN)
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$(Q)$(do_compile_shared_library)
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liblockdep.a: $(LIB_IN)
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$(Q)$(do_build_static_lib)
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tags: force
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$(RM) tags
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find . -name '*.[ch]' | xargs ctags --extra=+f --c-kinds=+px \
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--regex-c++='/_PE\(([^,)]*).*/PEVENT_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(\([^,)]*\).*/PEVENT_ERRNO__\1/'
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define do_install
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$(print_install) \
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if [ ! -d '$(DESTDIR_SQ)$2' ]; then \
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$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$2'; \
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fi; \
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$(INSTALL) $1 '$(DESTDIR_SQ)$2'
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endef
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install_lib: all_cmd
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$(Q)$(call do_install,$(LIB_FILE),$(libdir_SQ))
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$(Q)$(call do_install,$(BIN_FILE),$(bindir_SQ))
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install: install_lib
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clean:
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$(RM) *.o *~ $(TARGETS) *.a *liblockdep*.so* $(VERSION_FILES) .*.d
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$(RM) tags TAGS
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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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