cleanup makefiles and remove duplication

Makefile.inc duplicates many of the existing targets in Makefile.
Instead of duplication, pass all none local targets to Makefile
and implement only those needed locally.

Change-Id: I1e923dd398a138543fa676ab67570b630c75d7ea
Signed-off-by: Anas Nashif <anas.nashif@intel.com>

Kbuild

@@ -0,0 +1,2 @@
+# The build system expects this file
+

Makefile

@@ -435,7 +435,7 @@ outputmakefile:
 ifneq ($(KBUILD_SRC),)
 	$(Q)ln -fsn $(srctree) source
 	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
-	    $(srctree) $(objtree) $(VERSION_MAJOR) $(PATCHLEVEL)
+	    $(srctree) $(objtree) $(VERSION_MAJOR) $(VERSION_MINOR)
 endif
 
 # Support for using generic headers in asm-generic
@@ -456,7 +456,7 @@ asm-generic:
 
 version_h := include/generated/version.h
 
-no-dot-config-targets := clean mrproper distclean \
+no-dot-config-targets := pristine distclean clean mrproper help \
 			 cscope gtags TAGS tags help% %docs check% coccicheck \
 			 $(version_h) headers_% archheaders archscripts \
 			 kernelversion %src-pkg

Makefile.inc

@@ -1,9 +1,10 @@
 # vim: filetype=make
 
 PROJECT_BASE ?= $(shell pwd)
+O ?= $(PROJECT_BASE)/outdir
+
 ARCH ?= x86
 
-O ?= $(PROJECT_BASE)/outdir
 # Turn O into an absolute path; we call the main Kbuild with $(MAKE) -C
 # which changes the working directory, relative paths don't work right.
 # Need to create the directory first to make readlink happy
@@ -12,6 +13,7 @@ override O := $(shell readlink -f $(O))
 
 export ARCH MDEF_FILE QEMU_EXTRA_FLAGS PROJECT_BASE
 
+# FIXME: Simplify this, very ugly
 ifdef PLATFORM_CONFIG
 ifndef KERNEL_TYPE
 $(error KERNEL_TYPE is not defined!  Set it to either micro or nano)
@@ -33,12 +35,11 @@ endif
 
 SOURCE_DIR ?= $(PROJECT_BASE)/src/
 # Kbuild doesn't work correctly if this is an absolute path
+# FIXME Do not depend on python
 override SOURCE_DIR := $(shell python -c "import os.path; print(\"%s\" % os.path.relpath(os.path.realpath('$(SOURCE_DIR)'), os.path.realpath('$(ZEPHYR_BASE)')))")/
 export SOURCE_DIR
 
-CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
-	  else if [ -x /bin/bash ]; then echo /bin/bash; \
-	  else echo sh; fi ; fi)
+
 
 ifeq ("$(origin V)", "command line")
   KBUILD_VERBOSE = $(V)
@@ -55,62 +56,60 @@ else
   S = -s
 endif
 
+BEENTHERE = $(O)/.$(ARCH)-$(PLATFORM_CONFIG)-$(KERNEL_TYPE).env
+
+CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
+	  else if [ -x /bin/bash ]; then echo /bin/bash; \
+	  else echo sh; fi ; fi)
+
+zephyrmake	= @$(MAKE) -C $(ZEPHYR_BASE)  O=$(1) CFLAGS="$(CFLAGS)" \
+			PROJECT=$(PROJECT_BASE) SOURCE_DIR=$(SOURCE_DIR) $(2)
+
 all: $(CONFIG_DEPS) $(O)/.dir
-	$(Q)$(MAKE) -C $(ZEPHYR_BASE)  O=$(O) \
-		PROJECT=$(PROJECT_BASE) SOURCE_DIR=$(SOURCE_DIR) \
-		CFLAGS=$(CFLAGS)
-
-clean: distclean
-
-pristine: distclean
-
-distclean:
-	@rm -rf $(O)
-
-mrproper: clean FORCE
-	$(Q)$(MAKE) -C $(ZEPHYR_BASE) PROJECT=$(PROJECT_BASE) mrproper
-
-%config: $(O)/.dir FORCE
-	$(Q)$(MAKE) $(S) -C $(ZEPHYR_BASE) O=$(O) PROJECT=$(PROJECT_BASE) $@
+	$(Q)$(call zephyrmake,$(O),$@)
 
 qemu: $(CONFIG_DEPS) $(O)/.dir
-	$(Q)$(MAKE) -C $(ZEPHYR_BASE) O=$(O) \
-		PROJECT=$(PROJECT_BASE) SOURCE_DIR=$(SOURCE_DIR) \
-		CFLAGS=$(CFLAGS) qemu
+	$(Q)$(call zephyrmake,$(O),$@)
 
 
-$(O)/.config: $(O)/.dir $(O)/.$(ARCH)-$(PLATFORM_CONFIG)-$(KERNEL_TYPE).env
+# FIXME: Use defconfig to create directory and copy file
+$(O)/.config: $(O)/.dir $(BEENTHERE)
 	$(Q)cp $(KBUILD_DEFCONFIG_PATH) $(O)/.config
 
 $(O)/.initconfig: mergeconfig
 	$(Q)yes "" | $(MAKE) $(S) -C $(ZEPHYR_BASE) O=$(O) \
 		PROJECT=$(PROJECT_BASE) oldconfig
-	touch $@
+	$(Q)touch $@
 
+
+# FIXME: Use provided mergeconfig target in kconfig/Makefile
+#
 ifneq ($(strip $(CONF_FILE)),)
 mergeconfig: $(O)/.config $(CONF_FILE)
 	$(Q)$(CONFIG_SHELL) $(ZEPHYR_BASE)/scripts/kconfig/merge_config.sh \
 		-q -m -O $(O) $(O)/.config $(CONF_FILE)
 else
-mergeconfig: defconfig $(CONF_FILE);
+mergeconfig: defconfig $(CONF_FILE)
 endif
 
-$(CONF_FILE):;
+
+pristine:
+	$(Q)rm -rf $(O)
 
 %/.dir:
 	$(Q)set -e;
 	$(Q)test -s $(abspath $(dir $@)) || mkdir $(abspath $(dir $@)) -p
 	$(Q)touch $@
 
-help:
-	$(Q)$(MAKE) -C $(ZEPHYR_BASE) help
 
-$(O)/.$(ARCH)-$(PLATFORM_CONFIG)-$(KERNEL_TYPE).env: FORCE
-	@rm -rf $(O)/.*.env
-	$(Q)touch $(O)/.$(ARCH)-$(PLATFORM_CONFIG)-$(KERNEL_TYPE).env
+$(BEENTHERE): FORCE
+	$(Q)rm -rf $(O)/.*.env
+	$(Q)touch $@
 
-PHONY += FORCE clean mrproper
-FORCE:
+
+# Catch all
+%:
+	$(Q)$(call zephyrmake,$(O),$@)
 
 .PHONY: $(PHONY)
 .PRECIOUS: %/.dir

scripts/link-zephyr.sh

@@ -156,14 +156,14 @@ cleanup()
 	rm -f .tmp_System.map
 	rm -f .tmp_kallsyms*
 	rm -f .tmp_version
-	rm -f .tmp_${KERNEL_NAME}*
+	rm -f .tmp_*
 	rm -f System.map
-	rm -f ${KERNEL_NAME}.lnk
-	rm -f ${KERNEL_NAME}.map
-	rm -f ${KERNEL_NAME}.elf
-	rm -f ${KERNEL_NAME}.lst
-	rm -f ${KERNEL_NAME}.bin
-	rm -f ${KERNEL_NAME}.strip
+	rm -f *.lnk
+	rm -f *.map
+	rm -f *.elf
+	rm -f *.lst
+	rm -f *.bin
+	rm -f *.strip
 	rm -f staticIdt.o
 	rm -f linker.cmd
 	rm -f final-linker.cmd