tools/liblockdep: Add proper versioning to the shared obj

Add proper versioning to the shared obj so that distros would be
able to ship this lib without having to worry about versioning.
Suggested-by: NJosh Boyer <jwboyer@fedoraproject.org>
Signed-off-by: NSasha Levin <sasha.levin@oracle.com>

tools/lib/lockdep/Makefile

-# liblockdep version
-LL_VERSION = 0
-LL_PATCHLEVEL = 0
-LL_EXTRAVERSION = 1
-
 # file format version
 FILE_VERSION = 1
 
 MAKEFLAGS += --no-print-directory
-
+LIBLOCKDEP_VERSION=$(shell make -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
@@ -98,7 +93,7 @@ export prefix libdir bindir src obj
 libdir_SQ = $(subst ','\'',$(libdir))
 bindir_SQ = $(subst ','\'',$(bindir))
 
-LIB_FILE = liblockdep.a liblockdep.so
+LIB_FILE = liblockdep.a liblockdep.so.$(LIBLOCKDEP_VERSION)
 BIN_FILE = lockdep
 
 CONFIG_INCLUDES =
@@ -110,8 +105,6 @@ N		=
 
 export Q VERBOSE
 
-LIBLOCKDEP_VERSION = $(LL_VERSION).$(LL_PATCHLEVEL).$(LL_EXTRAVERSION)
-
 INCLUDES = -I. -I/usr/local/include -I./uinclude -I./include $(CONFIG_INCLUDES)
 
 # Set compile option CFLAGS if not set elsewhere
@@ -146,7 +139,7 @@ do_app_build =						\
 
 do_compile_shared_library =			\
 	($(print_shared_lib_compile)		\
-	$(CC) --shared $^ -o $@ -lpthread -ldl)
+	$(CC) --shared $^ -o $@ -lpthread -ldl -Wl,-soname='"$@"';$(shell ln -s $@ liblockdep.so))
 
 do_build_static_lib =				\
 	($(print_static_lib_build)		\
@@ -177,7 +170,7 @@ all: all_cmd
 
 all_cmd: $(CMD_TARGETS)
 
-liblockdep.so: $(PEVENT_LIB_OBJS)
+liblockdep.so.$(LIBLOCKDEP_VERSION): $(PEVENT_LIB_OBJS)
 	$(Q)$(do_compile_shared_library)
 
 liblockdep.a: $(PEVENT_LIB_OBJS)