tools: convert makefiles to kbuild style
Before this commit, makefiles under tools/ directory
were implemented with their own way.
This commit refactors them by using "hostprogs-y" variable.
Several C sources have been added to wrap other C sources
to simplify Makefile.
For example, tools/crc32.c includes lib/crc32.c
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
diff --git a/tools/kernel-doc/Makefile b/tools/kernel-doc/Makefile
index eb56e2e..f15a4b7 100644
--- a/tools/kernel-doc/Makefile
+++ b/tools/kernel-doc/Makefile
@@ -4,22 +4,7 @@
# SPDX-License-Identifier: GPL-2.0+
#
-include $(TOPDIR)/config.mk
-
-all: $(obj)docproc
-
-$(obj)docproc: docproc.c
- $(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
- $(HOSTSTRIP) $@
-
-clean:
- rm -rf docproc
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
+hostprogs-y := docproc
+always := $(hostprogs-y)
-#########################################################################
+HOST_EXTRACFLAGS := -pedantic