[PATCH 35/43] tools lib lockdep: Use tools build framework

Arnaldo Carvalho de Melo
2015-02-13T20:52:04Z

Move the lockdep library building under tools build framework.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexis Berlemont <alexis.berlemont@gmail.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: S. Lockwood-Childs <sjl@vctlabs.com>
Cc: Sasha Levin <sasha.levin@oracle.com>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-i0t25buqyo5jfvzpw2347h1h@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/lib/lockdep/Build | 1 +
tools/lib/lockdep/Makefile | 132 ++++++++-------------------------------------
2 files changed, 24 insertions(+), 109 deletions(-)
create mode 100644 tools/lib/lockdep/Build

diff --git a/tools/lib/lockdep/Build b/tools/lib/lockdep/Build
new file mode 100644
index 000000000000..6f667355b068
--- /dev/null
+++ b/tools/lib/lockdep/Build
@@ -0,0 +1 @@
+liblockdep-y += common.o lockdep.o preload.o rbtree.o
diff --git a/tools/lib/lockdep/Makefile b/tools/lib/lockdep/Makefile
index 52f9279c6c13..8c3340a4b9f8 100644
--- a/tools/lib/lockdep/Makefile
+++ b/tools/lib/lockdep/Makefile
@@ -35,6 +35,10 @@ 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")
@@ -44,56 +48,21 @@ ifndef VERBOSE
VERBOSE = 0
endif

-ifeq ("$(origin O)", "command line")
- BUILD_OUTPUT := $(O)
+ifeq ($(srctree),)
+srctree := $(patsubst %/,%,$(dir $(shell pwd)))
+srctree := $(patsubst %/,%,$(dir $(srctree)))
+srctree := $(patsubst %/,%,$(dir $(srctree)))
+#$(info Determined 'srctree' to be $(srctree))
endif

-ifeq ($(BUILD_SRC),)
-ifneq ($(BUILD_OUTPUT),)
-
-define build_output
- $(if $(VERBOSE:1=),@)$(MAKE) -C $(BUILD_OUTPUT) \
- BUILD_SRC=$(CURDIR) -f $(CURDIR)/Makefile $1
-endef
-
-saved-output := $(BUILD_OUTPUT)
-BUILD_OUTPUT := $(shell cd $(BUILD_OUTPUT) && /bin/pwd)
-$(if $(BUILD_OUTPUT),, \
- $(error output directory "$(saved-output)" does not exist))
-
-all: sub-make
-
-gui: force
- $(call build_output, all_cmd)
-
-$(filter-out gui,$(MAKECMDGOALS)): sub-make
-
-sub-make: force
- $(call build_output, $(MAKECMDGOALS))
-
-
-# Leave processing to above invocation of make
-skip-makefile := 1
-
-endif # BUILD_OUTPUT
-endif # BUILD_SRC
-
-# We process the rest of the Makefile if this is the final invocation of make
-ifeq ($(skip-makefile),)
-
-srctree := $(realpath $(if $(BUILD_SRC),$(BUILD_SRC),$(CURDIR)))
-objtree := $(realpath $(CURDIR))
-src := $(srctree)
-obj := $(objtree)
-
-export prefix libdir bindir src obj
-
# Shell quotes
libdir_SQ = $(subst ','\'',$(libdir))
bindir_SQ = $(subst ','\'',$(bindir))

-LIB_FILE = liblockdep.a liblockdep.so.$(LIBLOCKDEP_VERSION)
+LIB_IN := $(OUTPUT)liblockdep-in.o
+
BIN_FILE = lockdep
+LIB_FILE = $(OUTPUT)liblockdep.a $(OUTPUT)liblockdep.so.$(LIBLOCKDEP_VERSION)

CONFIG_INCLUDES =
CONFIG_LIBS =
@@ -108,33 +77,23 @@ INCLUDES = -I. -I/usr/local/include -I./uinclude -I./include -I../../include $(C

# 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 ($(VERBOSE),1)
Q =
- print_compile =
- print_app_build =
- print_fpic_compile =
print_shared_lib_compile =
print_install =
else
Q = @
- print_compile = echo ' CC '$(OBJ);
- print_app_build = echo ' BUILD '$(OBJ);
- print_fpic_compile = echo ' CC FPIC '$(OBJ);
- print_shared_lib_compile = echo ' BUILD SHARED LIB '$(OBJ);
- print_static_lib_build = echo ' BUILD STATIC LIB '$(OBJ);
- print_install = echo ' INSTALL '$1' to $(DESTDIR_SQ)$2';
+ print_shared_lib_compile = echo ' LD '$(OBJ);
+ print_static_lib_build = echo ' LD '$(OBJ);
+ print_install = echo ' INSTALL '$1' to $(DESTDIR_SQ)$2';
endif

-do_fpic_compile = \
- ($(print_fpic_compile) \
- $(CC) -c $(CFLAGS) $(EXT) -fPIC $< -o $@)
-
-do_app_build = \
- ($(print_app_build) \
- $(CC) $^ -rdynamic -o $@ $(CONFIG_LIBS) $(LIBS))
+export srctree OUTPUT CC LD CFLAGS V
+build := -f $(srctree)/tools/build/Makefile.build dir=. obj

do_compile_shared_library = \
($(print_shared_lib_compile) \
@@ -144,22 +103,6 @@ do_build_static_lib = \
($(print_static_lib_build) \
$(RM) $@; $(AR) rcs $@ $^)

-
-define do_compile
- $(print_compile) \
- $(CC) -c $(CFLAGS) $(EXT) $< -o $(obj)/$@;
-endef
-
-$(obj)/%.o: $(src)/%.c
- $(Q)$(call do_compile)
-
-%.o: $(src)/%.c
- $(Q)$(call do_compile)
-
-PEVENT_LIB_OBJS = common.o lockdep.o preload.o rbtree.o
-
-ALL_OBJS = $(PEVENT_LIB_OBJS)
-
CMD_TARGETS = $(LIB_FILE)

TARGETS = $(CMD_TARGETS)
@@ -169,42 +112,15 @@ all: all_cmd

all_cmd: $(CMD_TARGETS)

-liblockdep.so.$(LIBLOCKDEP_VERSION): $(PEVENT_LIB_OBJS)
+$(LIB_IN): force
+ $(Q)$(MAKE) $(build)=liblockdep
+
+liblockdep.so.$(LIBLOCKDEP_VERSION): $(LIB_IN)
$(Q)$(do_compile_shared_library)

-liblockdep.a: $(PEVENT_LIB_OBJS)
+liblockdep.a: $(LIB_IN)
$(Q)$(do_build_static_lib)

-$(PEVENT_LIB_OBJS): %.o: $(src)/%.c
- $(Q)$(do_fpic_compile)
-
-## make deps
-
-all_objs := $(sort $(ALL_OBJS))
-all_deps := $(all_objs:%.o=.%.d)
-
-# let .d file also depends on the source and header files
-define check_deps
- @set -e; $(RM) $@; \
- $(CC) -MM $(CFLAGS) $< > $@.$$$$; \
- sed 's,\($*\)\.o[ :]*,\1.o $@ : ,g' < $@.$$$$ > $@; \
- $(RM) $@.$$$$
-endef
-
-$(all_deps): .%.d: $(src)/%.c
- $(Q)$(call check_deps)
-
-$(all_objs) : %.o : .%.d
-
-dep_includes := $(wildcard $(all_deps))
-
-ifneq ($(dep_includes),)
- include $(dep_includes)
-endif
-
-### Detect environment changes
-TRACK_CFLAGS = $(subst ','\'',$(CFLAGS)):$(ARCH):$(CROSS_COMPILE)
-
tags: force
$(RM) tags
find . -name '*.[ch]' | xargs ctags --extra=+f --c-kinds=+px \
@@ -233,8 +149,6 @@ clean:
$(RM) *.o *~ $(TARGETS) *.a *liblockdep*.so* $(VERSION_FILES) .*.d
$(RM) tags TAGS

-endif # skip-makefile
-
PHONY += force
force:

--
1.9.3