013e379a30
This warning triggers if the .so library has already been linked: triton:~/tip/tools/lib/lockdep> make CC common.o CC lockdep.o CC rbtree.o LD liblockdep-in.o LD liblockdep.a ln: failed to create symbolic link ‘liblockdep.so’: File exists LD liblockdep.so.4.5.0-rc6 Overwrite the link. Cc: Alfredo Alvarez Fernandez <alfredoalvarezfernandez@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sasha Levin <sasha.levin@oracle.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
161 lines
4.0 KiB
Makefile
161 lines
4.0 KiB
Makefile
# file format version
|
|
FILE_VERSION = 1
|
|
|
|
LIBLOCKDEP_VERSION=$(shell make --no-print-directory -sC ../../.. kernelversion)
|
|
|
|
# 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 and LD, or setting CROSS_COMPILE as a prefix.
|
|
$(call allow-override,CC,$(CROSS_COMPILE)gcc)
|
|
$(call allow-override,AR,$(CROSS_COMPILE)ar)
|
|
$(call allow-override,LD,$(CROSS_COMPILE)ld)
|
|
|
|
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))'
|
|
|
|
prefix ?= /usr/local
|
|
libdir_relative = lib
|
|
libdir = $(prefix)/$(libdir_relative)
|
|
bindir_relative = bin
|
|
bindir = $(prefix)/$(bindir_relative)
|
|
|
|
export DESTDIR DESTDIR_SQ INSTALL
|
|
|
|
MAKEFLAGS += --no-print-directory
|
|
|
|
include ../../scripts/Makefile.include
|
|
|
|
# copy a bit from Linux kbuild
|
|
|
|
ifeq ("$(origin V)", "command line")
|
|
VERBOSE = $(V)
|
|
endif
|
|
ifndef VERBOSE
|
|
VERBOSE = 0
|
|
endif
|
|
|
|
ifeq ($(srctree),)
|
|
srctree := $(patsubst %/,%,$(dir $(shell pwd)))
|
|
srctree := $(patsubst %/,%,$(dir $(srctree)))
|
|
srctree := $(patsubst %/,%,$(dir $(srctree)))
|
|
#$(info Determined 'srctree' to be $(srctree))
|
|
endif
|
|
|
|
# Shell quotes
|
|
libdir_SQ = $(subst ','\'',$(libdir))
|
|
bindir_SQ = $(subst ','\'',$(bindir))
|
|
|
|
LIB_IN := $(OUTPUT)liblockdep-in.o
|
|
|
|
BIN_FILE = lockdep
|
|
LIB_FILE = $(OUTPUT)liblockdep.a $(OUTPUT)liblockdep.so.$(LIBLOCKDEP_VERSION)
|
|
|
|
CONFIG_INCLUDES =
|
|
CONFIG_LIBS =
|
|
CONFIG_FLAGS =
|
|
|
|
OBJ = $@
|
|
N =
|
|
|
|
export Q VERBOSE
|
|
|
|
INCLUDES = -I. -I./uinclude -I./include -I../../include $(CONFIG_INCLUDES)
|
|
|
|
# Set compile option CFLAGS if not set elsewhere
|
|
CFLAGS ?= -g -DCONFIG_LOCKDEP -DCONFIG_STACKTRACE -DCONFIG_PROVE_LOCKING -DBITS_PER_LONG=__WORDSIZE -DLIBLOCKDEP_VERSION='"$(LIBLOCKDEP_VERSION)"' -rdynamic -O0 -g
|
|
CFLAGS += -fPIC
|
|
|
|
override CFLAGS += $(CONFIG_FLAGS) $(INCLUDES) $(PLUGIN_DIR_SQ)
|
|
|
|
ifeq ($(VERBOSE),1)
|
|
Q =
|
|
print_shared_lib_compile =
|
|
print_install =
|
|
else
|
|
Q = @
|
|
print_shared_lib_compile = echo ' LD '$(OBJ);
|
|
print_static_lib_build = echo ' LD '$(OBJ);
|
|
print_install = echo ' INSTALL '$1' to $(DESTDIR_SQ)$2';
|
|
endif
|
|
|
|
all:
|
|
|
|
export srctree OUTPUT CC LD CFLAGS V
|
|
include $(srctree)/tools/build/Makefile.include
|
|
|
|
do_compile_shared_library = \
|
|
($(print_shared_lib_compile) \
|
|
$(CC) --shared $^ -o $@ -lpthread -ldl -Wl,-soname='"$@"';$(shell ln -sf $@ liblockdep.so))
|
|
|
|
do_build_static_lib = \
|
|
($(print_static_lib_build) \
|
|
$(RM) $@; $(AR) rcs $@ $^)
|
|
|
|
CMD_TARGETS = $(LIB_FILE)
|
|
|
|
TARGETS = $(CMD_TARGETS)
|
|
|
|
|
|
all: fixdep all_cmd
|
|
|
|
all_cmd: $(CMD_TARGETS)
|
|
|
|
$(LIB_IN): force
|
|
$(Q)$(MAKE) $(build)=liblockdep
|
|
|
|
liblockdep.so.$(LIBLOCKDEP_VERSION): $(LIB_IN)
|
|
$(Q)$(do_compile_shared_library)
|
|
|
|
liblockdep.a: $(LIB_IN)
|
|
$(Q)$(do_build_static_lib)
|
|
|
|
tags: force
|
|
$(RM) tags
|
|
find . -name '*.[ch]' | xargs ctags --extra=+f --c-kinds=+px \
|
|
--regex-c++='/_PE\(([^,)]*).*/PEVENT_ERRNO__\1/'
|
|
|
|
TAGS: force
|
|
$(RM) TAGS
|
|
find . -name '*.[ch]' | xargs etags \
|
|
--regex='/_PE(\([^,)]*\).*/PEVENT_ERRNO__\1/'
|
|
|
|
define do_install
|
|
$(print_install) \
|
|
if [ ! -d '$(DESTDIR_SQ)$2' ]; then \
|
|
$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$2'; \
|
|
fi; \
|
|
$(INSTALL) $1 '$(DESTDIR_SQ)$2'
|
|
endef
|
|
|
|
install_lib: all_cmd
|
|
$(Q)$(call do_install,$(LIB_FILE),$(libdir_SQ))
|
|
$(Q)$(call do_install,$(BIN_FILE),$(bindir_SQ))
|
|
|
|
install: install_lib
|
|
|
|
clean:
|
|
$(RM) *.o *~ $(TARGETS) *.a *liblockdep*.so* $(VERSION_FILES) .*.d .*.cmd
|
|
$(RM) tags TAGS
|
|
|
|
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)
|