Switch over to real Kbuild

index d7d5538..b613586 100644
@@ -5,16 +5,20 @@
 #
 # Normal rules
 #
-
-*.rej
-*.orig
-*.a
+.*
 *.o
+*.o.*
+*.a
+*.s
 *.su
-*~
+*.mod.c
+*.i
+*.lst
+*.order
+*.elf
 *.swp
-*.patch
 *.bin
+*.patch
 *.cfgtmp
 *.dts.tmp
 

@@ -24,12 +28,10 @@
 #
 # Top-level generic files
 #
-
 /MLO*
 /SPL
 /System.map
 /u-boot
-/u-boot.elf
 /u-boot.hex
 /u-boot.imx
 /u-boot-with-spl.imx

@@ -50,6 +52,12 @@
 /u-boot.sb
 
 #
+# git files that we don't want to ignore even it they are dot-files
+#
+!.gitignore
+!.mailmap
+
+#
 # Generated files
 #
 

@@ -65,7 +73,6 @@
 /include/generated/
 /include/spl-autoconf.mk
 /include/tpl-autoconf.mk
-asm-offsets.s
 
 # stgit generated dirs
 patches-*

@@ -91,3 +98,7 @@ GPATH
 GRTAGS
 GSYMS
 GTAGS
+
+*.orig
+*~
+\#*#

index e3354aa..c451fbf 100644
@@ -7,15 +7,23 @@ include $(TOPDIR)/config.mk
 LIB := $(obj)built-in.o
 LIBGCC = $(obj)libgcc.o
 SRCS :=
+subdir-y :=
+obj-dirs :=
 
 include Makefile
 
+# Do not include host rules unless needed
+ifneq ($(hostprogs-y)$(hostprogs-m),)
+include $(SRCTREE)/scripts/Makefile.host.tmp
+endif
+
 # Going forward use the following
 obj-y := $(sort $(obj-y))
 extra-y := $(sort $(extra-y))
+always := $(sort $(always))
 lib-y := $(sort $(lib-y))
 
-subdir-y 	:= $(patsubst %/,%,$(filter %/, $(obj-y)))
+subdir-y 	+= $(patsubst %/,%,$(filter %/, $(obj-y)))
 obj-y		:= $(patsubst %/, %/built-in.o, $(obj-y))
 subdir-obj-y	:= $(filter %/built-in.o, $(obj-y))
 subdir-obj-y	:= $(addprefix $(obj),$(subdir-obj-y))

@@ -25,7 +33,8 @@ SRCS	+= $(wildcard $(obj-y:.o=.c) $(obj-y:.o=.S) $(lib-y:.o=.c) \
 OBJS	:= $(addprefix $(obj),$(obj-y))
 
 # $(obj-dirs) is a list of directories that contain object files
-obj-dirs := $(dir $(OBJS))
+
+obj-dirs += $(dir $(OBJS))
 
 # Create directories for object files if directory does not exist
 # Needed when obj-y := dir/file.o syntax is used

@@ -33,7 +42,7 @@ _dummy := $(foreach d,$(obj-dirs), $(shell [ -d $(d) ] || mkdir -p $(d)))
 
 LGOBJS := $(addprefix $(obj),$(sort $(lib-y)))
 
-all: $(LIB) $(addprefix $(obj),$(extra-y))
+all: $(LIB) $(addprefix $(obj),$(extra-y) $(always)) $(subdir-y)
 
 $(LIB):	$(obj).depend $(OBJS)
 	$(call cmd_link_o_target, $(OBJS))

@@ -48,7 +57,9 @@ endif
 ifneq ($(subdir-obj-y),)
 # Descending
 $(subdir-obj-y): $(subdir-y)
+endif
 
+ifneq ($(subdir-y),)
 $(subdir-y): FORCE
 	$(MAKE) -C $@ -f $(TOPDIR)/scripts/Makefile.build
 endif

61 lines not on this page · raw message

index 1687e2e..a1e2810 100644
@@ -126,6 +126,8 @@ unexport CDPATH
 
 #########################################################################
 
+build := -f $(TOPDIR)/scripts/Makefile.build -C
+
 # The "tools" are needed early, so put this first
 # Don't include stuff already done in $(LIBS)
 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC

@@ -362,8 +364,6 @@ endif
 endif
 endif
 
-build := -f $(TOPDIR)/scripts/Makefile.build -C
-
 all:		$(ALL-y) $(SUBDIR_EXAMPLES-y)
 
 $(obj)u-boot.dtb:	checkdtc $(obj)u-boot

@@ -558,7 +558,10 @@ $(OBJS):
 $(LIBS):	depend $(SUBDIR_TOOLS)
 		$(MAKE) $(build) $(dir $(subst $(obj),,$@))
 
-$(SUBDIRS):	depend
+tools:	depend
+		$(MAKE) $(build) $@ all
+
+$(filter-out tools,$(SUBDIRS)):	depend
 		$(MAKE) -C $@ all
 
 $(SUBDIR_EXAMPLES-y): $(obj)u-boot

@@ -711,7 +714,7 @@ depend dep tags ctags etags cscope $(obj)System.map:
 	@ exit 1
 
 tools: $(VERSION_FILE) $(TIMESTAMP_FILE)
-	$(MAKE) -C $@ all
+	$(MAKE) $(build) $@ all
 endif	# config.mk
 
 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or

@@ -746,14 +749,15 @@ $(TIMESTAMP_FILE):
 		@cmp -s $@ [email protected] && rm -f [email protected] || mv -f [email protected] $@
 
 easylogo env gdb:
-	$(MAKE) -C tools/$@ all MTD_VERSION=${MTD_VERSION}
+	$(MAKE) $(build) tools/$@ MTD_VERSION=${MTD_VERSION}
+
 gdbtools: gdb
 
 xmldocs pdfdocs psdocs htmldocs mandocs: tools/kernel-doc/docproc
 	$(MAKE) U_BOOT_VERSION=$(U_BOOT_VERSION) -C doc/DocBook/ $@
 
 tools-all: easylogo env gdb $(VERSION_FILE) $(TIMESTAMP_FILE)
-	$(MAKE) -C tools HOST_TOOLS_ALL=y
+	$(MAKE) $(build) tools HOST_TOOLS_ALL=y
 
 .PHONY : CHANGELOG
 CHANGELOG:

@@ -798,7 +802,7 @@ clean:
 	       $(obj)tools/gen_eth_addr    $(obj)tools/img2srec		  \
 	       $(obj)tools/dump{env,}image		  \
 	       $(obj)tools/mk{env,}image   $(obj)tools/mpc86x_clk	  \
-	       $(obj)tools/mk{$(BOARD),}spl				  \
+	       $(obj)tools/mk{$(BOARD),exynos}spl			  \
 	       $(obj)tools/mxsboot					  \
 	       $(obj)tools/ncb		   $(obj)tools/ubsha1		  \
 	       $(obj)tools/kernel-doc/docproc				  \

index 60e297a..07afb35 100644
@@ -58,7 +58,6 @@ PLATFORM_LDFLAGS =
 
 HOSTCFLAGS	= -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
 		  $(HOSTCPPFLAGS)
-HOSTSTRIP	= strip
 
 #
 # Mac OS X / Darwin's C preprocessor is Apple specific.  It

@@ -93,13 +92,6 @@ ifeq ($(HOSTOS),cygwin)
 HOSTCFLAGS	+= -ansi
 endif
 
-# We build some files with extra pedantic flags to try to minimize things
-# that won't build on some weird host compiler -- though there are lots of
-# exceptions for files that aren't complaint.
-
-HOSTCFLAGS_NOPED = $(filter-out -pedantic,$(HOSTCFLAGS))
-HOSTCFLAGS	+= -pedantic
-
 #########################################################################
 #
 # Option checker, gcc version (courtesy linux kernel) to ensure

@@ -213,24 +205,6 @@ CPPFLAGS += -ffunction-sections -fdata-sections
 LDFLAGS_FINAL += --gc-sections
 endif
 
-# TODO(sjg at chromium.org): Is this correct on Mac OS?
-
-# MXSImage needs LibSSL
-ifneq ($(CONFIG_MX23)$(CONFIG_MX28),)
-HOSTLIBS	+= -lssl -lcrypto
-# Add CONFIG_MXS into host CFLAGS, so we can check whether or not register
-# the mxsimage support within tools/mxsimage.c .
-HOSTCFLAGS	+= -DCONFIG_MXS
-endif
-
-ifdef CONFIG_FIT_SIGNATURE
-HOSTLIBS	+= -lssl -lcrypto
-
-# This affects include/image.h, but including the board config file
-# is tricky, so manually define this options here.
-HOSTCFLAGS	+= -DCONFIG_FIT_SIGNATURE
-endif
-
 ifneq ($(CONFIG_SYS_TEXT_BASE),)
 CPPFLAGS += -DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE)
 endif

@@ -341,7 +315,7 @@ endif
 
 #########################################################################
 
-export	HOSTCC HOSTCFLAGS HOSTLDFLAGS PEDCFLAGS HOSTSTRIP CROSS_COMPILE \
+export	HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE \
 	AS LD CC CPP AR NM STRIP OBJCOPY OBJDUMP MAKE
 export	CONFIG_SYS_TEXT_BASE PLATFORM_CPPFLAGS PLATFORM_RELFLAGS CPPFLAGS CFLAGS AFLAGS
 

index f4510b7..b36de4d 100644
@@ -43,9 +43,4 @@ $(obj).depend.%:	%.c
 $(obj).depend.%:	%.S
 	$(MAKE_DEPEND)
 
-$(HOSTOBJS): $(obj)%.o: %.c
-	$(HOSTCC) $(HOSTCFLAGS) $(HOSTCFLAGS_$(@F)) $(HOSTCFLAGS_$(BCURDIR)) -o $@ $< -c
-$(NOPEDOBJS): $(obj)%.o: %.c
-	$(HOSTCC) $(HOSTCFLAGS_NOPED) $(HOSTCFLAGS_$(@F)) $(HOSTCFLAGS_$(BCURDIR)) -o $@ $< -c
-
 #########################################################################

index 4143e38..d5164e0 100644
@@ -164,7 +164,9 @@ else
 VAR_SIZE_PARAM =
 endif
 $(obj)$(BOARD)-spl.bin: $(obj)u-boot-spl.bin
-	$(OBJTREE)/tools/mk$(BOARD)spl $(VAR_SIZE_PARAM) $< $@
+	$(if $(wildcard $(OBJTREE)/tools/mk$(BOARD)spl),\
+	$(OBJTREE)/tools/mk$(BOARD)spl,\
+	$(OBJTREE)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@
 endif
 
 $(obj)$(SPL_BIN).bin:	$(obj)$(SPL_BIN)

index cd2f041..13283b7 100644
@@ -6,6 +6,7 @@
 /dumpimage
 /mkenvimage
 /mkimage
+/mkexynosspl
 /mpc86x_clk
 /mxsboot
 /ncb

@@ -15,7 +16,6 @@
 /xway-swap-bytes
 /*.exe
 /easylogo/easylogo
-/env/crc32.c
 /env/fw_printenv
 /gdb/gdbcont
 /gdb/gdbsend

376 lines not on this page · raw message

index d8e28b0..10aba2b 100644
@@ -1,11 +1,3 @@
-include $(TOPDIR)/config.mk
+hostprogs-y := easylogo
 
-all: $(obj)easylogo
-
-$(obj)easylogo: $(SRCTREE)/tools/easylogo/easylogo.c
-	$(HOSTCC) $(HOSTCFLAGS_NOPED) $(HOSTLDFLAGS) -o $@ $^
-
-clean:
-	rm -f $(obj)easylogo
-
-.PHONY: all clean
+always := $(hostprogs-y)

index 27892f7..c303815 100644
@@ -5,15 +5,8 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
-
-HOSTSRCS := $(SRCTREE)/lib/crc32.c  fw_env.c  fw_env_main.c
-HOSTSRCS += $(SRCTREE)/lib/ctype.c $(SRCTREE)/lib/linux_string.c
-HOSTSRCS += $(SRCTREE)/common/env_attr.c $(SRCTREE)/common/env_flags.c
-HEADERS	:= fw_env.h $(OBJTREE)/include/config.h
-
 # Compile for a hosted environment on the target
-HOSTCPPFLAGS  = -idirafter $(SRCTREE)/include \
+HOST_EXTRACFLAGS  = -idirafter $(SRCTREE)/include \
 		-idirafter $(SRCTREE)/arch/$(ARCH)/include \
 		-idirafter $(OBJTREE)/include \
 		-idirafter $(SRCTREE)/tools/env \

@@ -21,23 +14,12 @@ HOSTCPPFLAGS  = -idirafter $(SRCTREE)/include \
 		-DTEXT_BASE=$(TEXT_BASE)
 
 ifeq ($(MTD_VERSION),old)
-HOSTCPPFLAGS += -DMTD_OLD
+HOST_EXTRACFLAGS += -DMTD_OLD
 endif
 
-all:	$(obj)fw_printenv
-
-# Some files complain if compiled with -pedantic, use HOSTCFLAGS_NOPED
-$(obj)fw_printenv:	$(HOSTSRCS) $(HEADERS)
-	$(HOSTCC) $(HOSTCFLAGS_NOPED) $(HOSTLDFLAGS) -o $@ $(HOSTSRCS)
-	$(HOSTSTRIP) $@
-
-clean:
-	rm -f $(obj)fw_printenv
-
-#########################################################################
-
-include $(TOPDIR)/rules.mk
-
-sinclude $(obj).depend
+hostprogs-y := fw_printenv
+always := $(hostprogs-y)
 
-#########################################################################
+fw_printenv-objs := fw_env.o fw_env_main.o \
+	crc32.o ctype.o linux_string.o \
+	env_attr.o env_flags.o

55 lines not on this page · raw message

index eb56e2e..f15a4b7 100644
@@ -4,22 +4,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
+hostprogs-y := docproc
+always := $(hostprogs-y)
 
-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
-
-#########################################################################
+HOST_EXTRACFLAGS := -pedantic

index a1e2810..8c585b6 100644
@@ -809,6 +809,7 @@ clean:
 	       $(obj)tools/proftool
 	@rm -f $(obj)board/cray/L1/{bootscript.c,bootscript.image}	  \
 	       $(obj)board/matrix_vision/*/bootscript.img		  \
+	       $(obj)spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl	  \
 	       $(obj)u-boot.lds						  \
 	       $(obj)arch/blackfin/cpu/init.{lds,elf}
 	@rm -f $(obj)include/bmp_logo.h

index e8818bf..31e88f4 100644
@@ -4,16 +4,16 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-ifndef CONFIG_SPL_BUILD
-obj-y	+= origen.o
-endif
-
 ifdef CONFIG_SPL_BUILD
-all: $(OBJTREE)/tools/mk$(BOARD)spl
-endif
+hostprogs-y := tools/mkorigenspl
+always := $(hostprogs-y)
 
-# Fix ME after we implement hostprogs-y.
-ifdef CONFIG_SPL_BUILD
-$(OBJTREE)/tools/mk$(BOARD)spl:	tools/mkv310_image.c
-	$(HOSTCC) tools/mkv310_image.c -o $(OBJTREE)/tools/mk$(BOARD)spl
+# omit -O2 option to suppress
+#   warning: dereferencing type-punned pointer will break strict-aliasing rules
+#
+# TODO:
+# Fix the root cause in tools/mkorigenspl.c and delete the following work-around
+$(obj)tools/mkorigenspl: HOSTCFLAGS:=$(filter-out -O2,$(HOSTCFLAGS))
+else
+obj-y	+= origen.o
 endif

index dbc621b..9e37b4e 100644
@@ -4,16 +4,9 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-ifndef CONFIG_SPL_BUILD
-obj-y	+= smdkv310.o
-endif
-
 ifdef CONFIG_SPL_BUILD
-all: $(OBJTREE)/tools/mk$(BOARD)spl
-endif
-
-# Fix ME after we implement hostprogs-y.
-ifdef CONFIG_SPL_BUILD
-$(OBJTREE)/tools/mk$(BOARD)spl:	tools/mkv310_image.c
-	$(HOSTCC) tools/mkv310_image.c -o $(OBJTREE)/tools/mk$(BOARD)spl
+hostprogs-y := tools/mksmdkv310spl
+always := $(hostprogs-y)
+else
+obj-y	+= smdkv310.o
 endif

index d5164e0..e76b2b4 100644
@@ -164,8 +164,8 @@ else
 VAR_SIZE_PARAM =
 endif
 $(obj)$(BOARD)-spl.bin: $(obj)u-boot-spl.bin
-	$(if $(wildcard $(OBJTREE)/tools/mk$(BOARD)spl),\
-	$(OBJTREE)/tools/mk$(BOARD)spl,\
+	$(if $(wildcard $(OBJTREE)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\
+	$(OBJTREE)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\
 	$(OBJTREE)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@
 endif
 

index 8c585b6..b10d3b1 100644
@@ -558,12 +558,9 @@ $(OBJS):
 $(LIBS):	depend $(SUBDIR_TOOLS)
 		$(MAKE) $(build) $(dir $(subst $(obj),,$@))
 
-tools:	depend
+$(SUBDIRS):	depend
 		$(MAKE) $(build) $@ all
 
-$(filter-out tools,$(SUBDIRS)):	depend
-		$(MAKE) -C $@ all
-
 $(SUBDIR_EXAMPLES-y): $(obj)u-boot
 
 $(obj)u-boot.lds: $(LDSCRIPT) depend

index cad10a3..f770859 100644
@@ -11,10 +11,8 @@ ifeq ($(ARCH),arm)
 LOAD_ADDR = 0x1000000
 endif
 
-include $(TOPDIR)/config.mk
-
 # Resulting ELF and binary exectuables will be named demo and demo.bin
-OUTPUT = $(obj)demo
+extra-y = demo
 
 # Source files located in the examples/api directory
 SOBJ_FILES-y += crt0.o

@@ -43,13 +41,13 @@ OBJS	+= $(addprefix $(obj),$(COBJ_FILES-y))
 OBJS	+= $(addprefix $(obj),$(notdir $(EXT_COBJ_FILES-y)))
 OBJS	+= $(addprefix $(obj),$(notdir $(EXT_SOBJ_FILES-y)))
 
-all:	$(obj).depend $(OUTPUT)
-
 #########################################################################
 
-$(OUTPUT):	$(OBJS)
+$(obj)demo:	$(OBJS)
 		$(LD) --gc-sections -Ttext $(LOAD_ADDR) -o $@ $^ $(PLATFORM_LIBS)
-		$(OBJCOPY) -O binary $@ $(OUTPUT).bin 2>/dev/null
+
+$(obj)demo.bin: $(obj)demo
+		$(OBJCOPY) -O binary $< $@ 2>/dev/null
 
 # Rule to build generic library C files
 $(obj)%.o: $(SRCTREE)/lib/%.c

@@ -58,12 +56,3 @@ $(obj)%.o: $(SRCTREE)/lib/%.c
 # Rule to build architecture-specific library assembly files
 $(obj)%.o: $(SRCTREE)/arch/$(ARCH)/lib/%.S
 	$(CC) -g $(CFLAGS) -c -o $@ $<
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################

81 lines not on this page · raw message

index c451fbf..50c0394 100644
@@ -4,7 +4,8 @@ all:
 
 include $(TOPDIR)/config.mk
 
-LIB := $(obj)built-in.o
+# variable LIB is used in examples/standalone/Makefile
+__LIB := $(obj)built-in.o
 LIBGCC = $(obj)libgcc.o
 SRCS :=
 subdir-y :=

@@ -42,9 +43,9 @@ _dummy := $(foreach d,$(obj-dirs), $(shell [ -d $(d) ] || mkdir -p $(d)))
 
 LGOBJS := $(addprefix $(obj),$(sort $(lib-y)))
 
-all: $(LIB) $(addprefix $(obj),$(extra-y) $(always)) $(subdir-y)
+all: $(__LIB) $(addprefix $(obj),$(extra-y) $(always)) $(subdir-y)
 
-$(LIB):	$(obj).depend $(OBJS)
+$(__LIB):	$(obj).depend $(OBJS)
 	$(call cmd_link_o_target, $(OBJS))
 
 ifneq ($(strip $(lib-y)),)

index b10d3b1..5204ab4 100644
@@ -567,7 +567,7 @@ $(obj)u-boot.lds: $(LDSCRIPT) depend
 		$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$< >$@
 
 nand_spl:	$(TIMESTAMP_FILE) $(VERSION_FILE) depend
-		$(MAKE) -C nand_spl/board/$(BOARDDIR) all
+		$(MAKE) $(build) nand_spl/board/$(BOARDDIR) all
 
 $(obj)u-boot-nand.bin:	nand_spl $(obj)u-boot.bin
 		cat $(obj)nand_spl/u-boot-spl-16k.bin $(obj)u-boot.bin > $(obj)u-boot-nand.bin

index 022a205..3b00d49 100644
@@ -5,7 +5,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
 include $(TOPDIR)/nand_spl/board/$(BOARDDIR)/config.mk
 
 nandobj	:= $(OBJTREE)/nand_spl/

@@ -94,10 +93,3 @@ $(obj)%.o:	$(obj)%.S
 
 $(obj)%.o:	$(obj)%.c
 	$(CC) $(CFLAGS) -c -o $@ $<
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################

index d413a48..4063274 100644
@@ -5,7 +5,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
 include $(TOPDIR)/nand_spl/board/$(BOARDDIR)/config.mk
 
 nandobj	:= $(OBJTREE)/nand_spl/

@@ -82,10 +81,3 @@ $(obj)%.o:	$(obj)%.S
 
 $(obj)%.o:	$(obj)%.c
 	$(CC) $(CFLAGS) -c -o $@ $<
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################

index b2ef03f..13c8b36 100644
@@ -5,7 +5,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
 include $(TOPDIR)/nand_spl/board/$(BOARDDIR)/config.mk
 
 nandobj	:= $(OBJTREE)/nand_spl/

@@ -87,10 +86,3 @@ $(obj)%.o:	$(obj)%.S
 
 $(obj)%.o:	$(obj)%.c
 	$(CC) $(CFLAGS) -c -o $@ $<
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################

index 5899b9e..9d07147 100644
@@ -5,7 +5,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
 include $(TOPDIR)/nand_spl/board/$(BOARDDIR)/config.mk
 
 nandobj	:= $(OBJTREE)/nand_spl/

@@ -83,10 +82,3 @@ $(obj)%.o:	$(obj)%.S
 
 $(obj)%.o:	$(obj)%.c
 	$(CC) $(CFLAGS) -c -o $@ $<
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################

index fea6c4e..111bb0d 100644
@@ -5,7 +5,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
 include $(TOPDIR)/nand_spl/board/$(BOARDDIR)/config.mk
 
 nandobj	:= $(OBJTREE)/nand_spl/

@@ -86,10 +85,3 @@ $(obj)%.o:	$(obj)%.S
 
 $(obj)%.o:	$(obj)%.c
 	$(CC) $(CFLAGS) -c -o $@ $<
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################

index c49a6e0..7813823 100644
@@ -6,11 +6,8 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-NAND_SPL := y
 PAD_TO := 0xfff04000
 
-include $(TOPDIR)/config.mk
-
 nandobj	:= $(OBJTREE)/nand_spl/
 
 LDSCRIPT= $(TOPDIR)/nand_spl/board/$(BOARDDIR)/u-boot.lds

@@ -79,10 +76,3 @@ $(obj)%.o:	$(obj)%.S
 
 $(obj)%.o:	$(obj)%.c
 	$(CC) $(CFLAGS) -c -o $@ $<
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################

index 6233081..5d9953b 100644
@@ -7,12 +7,9 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-NAND_SPL := y
 CONFIG_SYS_TEXT_BASE_SPL := 0xfff00000
 PAD_TO := 0xfff01000
 
-include $(TOPDIR)/config.mk
-
 nandobj	:= $(OBJTREE)/nand_spl/
 
 LDSCRIPT= $(TOPDIR)/$(CPUDIR)/u-boot-nand_spl.lds

@@ -109,10 +106,3 @@ $(obj)%.o:	$(obj)%.S
 
 $(obj)%.o:	$(obj)%.c
 	$(CC) $(CFLAGS) -c -o $@ $<
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################

index 6233081..5d9953b 100644
@@ -7,12 +7,9 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-NAND_SPL := y
 CONFIG_SYS_TEXT_BASE_SPL := 0xfff00000
 PAD_TO := 0xfff01000
 
-include $(TOPDIR)/config.mk
-
 nandobj	:= $(OBJTREE)/nand_spl/
 
 LDSCRIPT= $(TOPDIR)/$(CPUDIR)/u-boot-nand_spl.lds

@@ -109,10 +106,3 @@ $(obj)%.o:	$(obj)%.S
 
 $(obj)%.o:	$(obj)%.c
 	$(CC) $(CFLAGS) -c -o $@ $<
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################

index 6233081..5d9953b 100644
@@ -7,12 +7,9 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-NAND_SPL := y
 CONFIG_SYS_TEXT_BASE_SPL := 0xfff00000
 PAD_TO := 0xfff01000
 
-include $(TOPDIR)/config.mk
-
 nandobj	:= $(OBJTREE)/nand_spl/
 
 LDSCRIPT= $(TOPDIR)/$(CPUDIR)/u-boot-nand_spl.lds

@@ -109,10 +106,3 @@ $(obj)%.o:	$(obj)%.S
 
 $(obj)%.o:	$(obj)%.c
 	$(CC) $(CFLAGS) -c -o $@ $<
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################

index dbdfa19..652590d 100644
@@ -3,10 +3,8 @@
 #
 # SPDX-License-Identifier:	GPL-2.0+
 #
-NAND_SPL := y
-PAD_TO := 0xfff01000
 
-include $(TOPDIR)/config.mk
+PAD_TO := 0xfff01000
 
 nandobj	:= $(OBJTREE)/nand_spl/
 

@@ -104,10 +102,3 @@ $(obj)%.o:	$(obj)%.S
 
 $(obj)%.o:	$(obj)%.c
 	$(CC) $(CFLAGS) -c -o $@ $<
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################

index 6233081..5d9953b 100644
@@ -7,12 +7,9 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-NAND_SPL := y
 CONFIG_SYS_TEXT_BASE_SPL := 0xfff00000
 PAD_TO := 0xfff01000
 
-include $(TOPDIR)/config.mk
-
 nandobj	:= $(OBJTREE)/nand_spl/
 
 LDSCRIPT= $(TOPDIR)/$(CPUDIR)/u-boot-nand_spl.lds

@@ -109,10 +106,3 @@ $(obj)%.o:	$(obj)%.S
 
 $(obj)%.o:	$(obj)%.c
 	$(CC) $(CFLAGS) -c -o $@ $<
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################

index 90f132c..5e83abc 100644
@@ -7,10 +7,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-NAND_SPL := y
-
-include $(TOPDIR)/config.mk
-
 nandobj	:= $(OBJTREE)/nand_spl/
 
 LDSCRIPT= $(TOPDIR)/nand_spl/board/$(BOARDDIR)/u-boot.lds

@@ -88,10 +84,3 @@ $(obj)%.o:	$(obj)%.S
 
 $(obj)%.o:	$(obj)%.c
 	$(CC) $(CFLAGS) -c -o $@ $<
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################

index 07afb35..b08be7a 100644
@@ -318,38 +318,3 @@ endif
 export	HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE \
 	AS LD CC CPP AR NM STRIP OBJCOPY OBJDUMP MAKE
 export	CONFIG_SYS_TEXT_BASE PLATFORM_CPPFLAGS PLATFORM_RELFLAGS CPPFLAGS CFLAGS AFLAGS
-
-#########################################################################
-
-# Allow boards to use custom optimize flags on a per dir/file basis
-ALL_AFLAGS = $(AFLAGS) $(AFLAGS_$(BCURDIR)/$(@F)) $(AFLAGS_$(BCURDIR))
-ALL_CFLAGS = $(CFLAGS) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR))
-EXTRA_CPPFLAGS = $(CPPFLAGS_$(BCURDIR)/$(@F)) $(CPPFLAGS_$(BCURDIR))
-ALL_CFLAGS += $(EXTRA_CPPFLAGS)
-
-# The _DEP version uses the $< file target (for dependency generation)
-# See rules.mk
-EXTRA_CPPFLAGS_DEP = $(CPPFLAGS_$(BCURDIR)/$(addsuffix .o,$(basename $<))) \
-		$(CPPFLAGS_$(BCURDIR))
-$(obj)%.s:	%.S
-	$(CPP) $(ALL_AFLAGS) -o $@ $<
-$(obj)%.o:	%.S
-	$(CC)  $(ALL_AFLAGS) -o $@ $< -c
-$(obj)%.o:	%.c
-ifneq ($(CHECKSRC),0)
-	$(CHECK) $(CHECKFLAGS) $(ALL_CFLAGS) $<
-endif
-	$(CC)  $(ALL_CFLAGS) -o $@ $< -c
-$(obj)%.i:	%.c
-	$(CPP) $(ALL_CFLAGS) -o $@ $< -c
-$(obj)%.s:	%.c
-	$(CC)  $(ALL_CFLAGS) -o $@ $< -c -S
-
-#########################################################################
-
-# If the list of objects to link is empty, just create an empty built-in.o
-cmd_link_o_target = $(if $(strip $1),\
-		      $(LD) $(LDFLAGS) -r -o $@ $1,\
-		      rm -f $@; $(AR) rcs $@ )
-
-#########################################################################

index f770859..52f4368 100644
@@ -50,9 +50,9 @@ $(obj)demo.bin: $(obj)demo
 		$(OBJCOPY) -O binary $< $@ 2>/dev/null
 
 # Rule to build generic library C files
-$(obj)%.o: $(SRCTREE)/lib/%.c
+$(addprefix $(obj),$(notdir $(EXT_COBJ_FILES-y))): $(obj)%.o: $(SRCTREE)/lib/%.c
 	$(CC) -g $(CFLAGS) -c -o $@ $<
 
 # Rule to build architecture-specific library assembly files
-$(obj)%.o: $(SRCTREE)/arch/$(ARCH)/lib/%.S
+$(addprefix $(obj),$(notdir $(EXT_SOBJ_FILES-y))): $(obj)%.o: $(SRCTREE)/arch/$(ARCH)/lib/%.S
 	$(CC) -g $(CFLAGS) -c -o $@ $<

index ae56a82..a7aa5bc 100644
@@ -18,7 +18,7 @@ obj-y	+= darwin-ldouble.o
 CFLAGS := $(shell echo $(CFLAGS) | sed s/-msoft-float//)
 CFLAGS += -mhard-float -fkeep-inline-functions
 
-$(obj)%.o:	%.c
+$(addprefix $(obj),$(obj-y)): $(obj)%.o:	%.c
 	$(CC)  $(ALL_CFLAGS) -o [email protected] $< -c
 	$(OBJCOPY) -R .gnu.attributes [email protected] $@
 	rm -f [email protected]

index 50c0394..1b3d77f 100644
@@ -67,6 +67,37 @@ endif
 
 #########################################################################
 
+# Allow boards to use custom optimize flags on a per dir/file basis
+ALL_AFLAGS = $(AFLAGS) $(AFLAGS_$(BCURDIR)/$(@F)) $(AFLAGS_$(BCURDIR))
+ALL_CFLAGS = $(CFLAGS) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR))
+EXTRA_CPPFLAGS = $(CPPFLAGS_$(BCURDIR)/$(@F)) $(CPPFLAGS_$(BCURDIR))
+ALL_CFLAGS += $(EXTRA_CPPFLAGS)
+
+# The _DEP version uses the $< file target (for dependency generation)
+# See rules.mk
+EXTRA_CPPFLAGS_DEP = $(CPPFLAGS_$(BCURDIR)/$(addsuffix .o,$(basename $<))) \
+		$(CPPFLAGS_$(BCURDIR))
+$(obj)%.s:	%.S
+	$(CPP) $(ALL_AFLAGS) -o $@ $<
+$(obj)%.o:	%.S
+	$(CC)  $(ALL_AFLAGS) -o $@ $< -c
+$(obj)%.o:	%.c
+ifneq ($(CHECKSRC),0)
+	$(CHECK) $(CHECKFLAGS) $(ALL_CFLAGS) $<
+endif
+	$(CC)  $(ALL_CFLAGS) -o $@ $< -c
+$(obj)%.i:	%.c
+	$(CPP) $(ALL_CFLAGS) -o $@ $< -c
+$(obj)%.s:	%.c
+	$(CC)  $(ALL_CFLAGS) -o $@ $< -c -S
+
+# If the list of objects to link is empty, just create an empty built-in.o
+cmd_link_o_target = $(if $(strip $1),\
+		      $(LD) $(LDFLAGS) -r -o $@ $1,\
+		      rm -f $@; $(AR) rcs $@ )
+
+#########################################################################
+
 # defines $(obj).depend target
 
 include $(TOPDIR)/rules.mk

index 5204ab4..0c1eef3 100644
@@ -161,6 +161,73 @@ ifeq ($(HOSTARCH),$(ARCH))
 CROSS_COMPILE ?=
 endif
 
+# SHELL used by kbuild
+CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
+	  else if [ -x /bin/bash ]; then echo /bin/bash; \
+	  else echo sh; fi ; fi)
+
+HOSTCC       = gcc
+HOSTCFLAGS   = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
+
+ifeq ($(HOSTOS),cygwin)
+HOSTCFLAGS	+= -ansi
+endif
+
+# Mac OS X / Darwin's C preprocessor is Apple specific.  It
+# generates numerous errors and warnings.  We want to bypass it
+# and use GNU C's cpp.	To do this we pass the -traditional-cpp
+# option to the compiler.  Note that the -traditional-cpp flag
+# DOES NOT have the same semantics as GNU C's flag, all it does
+# is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
+#
+# Apple's linker is similar, thanks to the new 2 stage linking
+# multiple symbol definitions are treated as errors, hence the
+# -multiply_defined suppress option to turn off this error.
+#
+ifeq ($(HOSTOS),darwin)
+# get major and minor product version (e.g. '10' and '6' for Snow Leopard)
+DARWIN_MAJOR_VERSION	= $(shell sw_vers -productVersion | cut -f 1 -d '.')
+DARWIN_MINOR_VERSION	= $(shell sw_vers -productVersion | cut -f 2 -d '.')
+
+os_x_before	= $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
+	$(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
+
+# Snow Leopards build environment has no longer restrictions as described above
+HOSTCC       = $(call os_x_before, 10, 5, "cc", "gcc")
+HOSTCFLAGS  += $(call os_x_before, 10, 4, "-traditional-cpp")
+HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
+endif
+
+# Make variables (CC, etc...)
+
+AS		= $(CROSS_COMPILE)as
+# Always use GNU ld
+ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
+LD		= $(CROSS_COMPILE)ld.bfd
+else
+LD		= $(CROSS_COMPILE)ld
+endif
+CC		= $(CROSS_COMPILE)gcc
+CPP		= $(CC) -E
+AR		= $(CROSS_COMPILE)ar
+NM		= $(CROSS_COMPILE)nm
+LDR		= $(CROSS_COMPILE)ldr
+STRIP		= $(CROSS_COMPILE)strip
+OBJCOPY		= $(CROSS_COMPILE)objcopy
+OBJDUMP		= $(CROSS_COMPILE)objdump
+AWK		= awk
+RANLIB		= $(CROSS_COMPILE)RANLIB
+DTC		= dtc
+CHECK		= sparse
+
+CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
+		  -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
+
+export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
+export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
+export MAKE AWK
+export DTC CHECK CHECKFLAGS
+
 # load other configuration
 include $(TOPDIR)/config.mk
 

@@ -788,27 +855,28 @@ clean:
 	       $(obj)examples/standalone/interrupt			  \
 	       $(obj)examples/standalone/mem_to_mem_idma2intr		  \
 	       $(obj)examples/standalone/sched				  \
-	       $(obj)examples/standalone/smc911{11,x}_eeprom		  \
+	       $(addprefix $(obj)examples/standalone/, smc91111_eeprom smc911x_eeprom) \
 	       $(obj)examples/standalone/test_burst			  \
 	       $(obj)examples/standalone/timer
-	@rm -f $(obj)examples/api/demo{,.bin}
+	@rm -f $(addprefix $(obj)examples/api/, demo demo.bin)
 	@rm -f $(obj)tools/bmp_logo	   $(obj)tools/easylogo/easylogo  \
 	       $(obj)tools/env/fw_printenv				  \
 	       $(obj)tools/envcrc					  \
-	       $(obj)tools/gdb/{gdbcont,gdbsend}			  \
+	       $(addprefix $(obj)tools/gdb/, gdbcont gdbsend)		  \
 	       $(obj)tools/gen_eth_addr    $(obj)tools/img2srec		  \
-	       $(obj)tools/dump{env,}image		  \
-	       $(obj)tools/mk{env,}image   $(obj)tools/mpc86x_clk	  \
-	       $(obj)tools/mk{$(BOARD),exynos}spl			  \
+	       $(obj)tools/dumpimage					  \
+	       $(addprefix $(obj)tools/, mkenvimage mkimage)		  \
+	       $(obj)tools/mpc86x_clk					  \
+	       $(addprefix $(obj)tools/, mk$(BOARD)spl mkexynosspl)	  \
 	       $(obj)tools/mxsboot					  \
 	       $(obj)tools/ncb		   $(obj)tools/ubsha1		  \
 	       $(obj)tools/kernel-doc/docproc				  \
 	       $(obj)tools/proftool
-	@rm -f $(obj)board/cray/L1/{bootscript.c,bootscript.image}	  \
+	@rm -f $(addprefix $(obj)board/cray/L1/, bootscript.c bootscript.image) \
 	       $(obj)board/matrix_vision/*/bootscript.img		  \
 	       $(obj)spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl	  \
 	       $(obj)u-boot.lds						  \
-	       $(obj)arch/blackfin/cpu/init.{lds,elf}
+	       $(addprefix $(obj)arch/blackfin/cpu/, init.lds init.elf)
 	@rm -f $(obj)include/bmp_logo.h
 	@rm -f $(obj)include/bmp_logo_data.h
 	@rm -f $(obj)lib/asm-offsets.s

@@ -843,11 +911,11 @@ clobber:	tidy
 	@rm -f $(obj)u-boot.dtb
 	@rm -f $(obj)u-boot.sb
 	@rm -f $(obj)u-boot.spr
-	@rm -f $(obj)nand_spl/{u-boot.{lds,lst},System.map}
-	@rm -f $(obj)nand_spl/{u-boot-nand_spl.lds,u-boot-spl,u-boot-spl.map}
-	@rm -f $(obj)spl/{u-boot-spl,u-boot-spl.bin,u-boot-spl.map}
+	@rm -f $(addprefix $(obj)nand_spl/, u-boot.lds u-boot.lst System.map)
+	@rm -f $(addprefix $(obj)nand_spl/, u-boot-nand_spl.lds u-boot-spl u-boot-spl.map)
+	@rm -f $(addprefix $(obj)spl/, u-boot-spl u-boot-spl.bin u-boot-spl.map)
 	@rm -f $(obj)spl/u-boot-spl.lds
-	@rm -f $(obj)tpl/{u-boot-tpl,u-boot-tpl.bin,u-boot-tpl.map}
+	@rm -f $(addprefix $(obj)tpl/, u-boot-tpl u-boot-tpl.bin u-boot-tpl.map)
 	@rm -f $(obj)tpl/u-boot-spl.lds
 	@rm -f $(obj)MLO MLO.byteswap
 	@rm -f $(obj)SPL

@@ -856,7 +924,7 @@ clobber:	tidy
 	@rm -fr $(obj)include/generated
 	@[ ! -d $(obj)nand_spl ] || find $(obj)nand_spl -name "*" -type l -print | xargs rm -f
 	@rm -f $(obj)dts/*.tmp
-	@rm -f $(obj)spl/u-boot-spl{,-pad}.ais
+	@rm -f $(addprefix $(obj)spl/, u-boot-spl.ais, u-boot-spl-pad.ais)
 
 mrproper \
 distclean:	clobber unconfig

106 lines not on this page · raw message

index 74617d3..dfe81fa 100644
@@ -220,29 +220,6 @@ ifneq ($(CONFIG_SPL_TEXT_BASE),)
 LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE)
 endif
 
-# Location of a usable BFD library, where we define "usable" as
-# "built for ${HOST}, supports ${TARGET}".  Sensible values are
-# - When cross-compiling: the root of the cross-environment
-# - Linux/ppc (native): /usr
-# - NetBSD/ppc (native): you lose ... (must extract these from the
-#   binutils build directory, plus the native and U-Boot include
-#   files don't like each other)
-#
-# So far, this is used only by tools/gdb/Makefile.
-
-ifeq ($(HOSTOS),darwin)
-BFD_ROOT_DIR =		/usr/local/tools
-else
-ifeq ($(HOSTARCH),$(ARCH))
-# native
-BFD_ROOT_DIR =		/usr
-else
-#BFD_ROOT_DIR =		/LinuxPPC/CDK		# Linux/i386
-#BFD_ROOT_DIR =		/usr/pkg/cross		# NetBSD/i386
-BFD_ROOT_DIR =		/opt/powerpc
-endif
-endif
-
 #########################################################################
 
 export	CONFIG_SYS_TEXT_BASE PLATFORM_CPPFLAGS PLATFORM_RELFLAGS CPPFLAGS CFLAGS AFLAGS

index 850bb9b..4513320 100644
@@ -10,6 +10,27 @@
 
 ifneq ($(HOSTOS),cygwin)
 
+# Location of a usable BFD library, where we define "usable" as
+# "built for ${HOST}, supports ${TARGET}".  Sensible values are
+# - When cross-compiling: the root of the cross-environment
+# - Linux/ppc (native): /usr
+# - NetBSD/ppc (native): you lose ... (must extract these from the
+#   binutils build directory, plus the native and U-Boot include
+#   files don't like each other)
+
+ifeq ($(HOSTOS),darwin)
+BFD_ROOT_DIR =		/usr/local/tools
+else
+ifeq ($(HOSTARCH),$(ARCH))
+# native
+BFD_ROOT_DIR =		/usr
+else
+#BFD_ROOT_DIR =		/LinuxPPC/CDK		# Linux/i386
+#BFD_ROOT_DIR =		/usr/pkg/cross		# NetBSD/i386
+BFD_ROOT_DIR =		/opt/powerpc
+endif
+endif
+
 #
 # Use native tools and options
 #

new file mode 100644
index 0000000..547e15d
@@ -0,0 +1,278 @@
+####
+# kbuild: Generic definitions
+
+# Convenient variables
+comma   := ,
+squote  := '
+empty   :=
+space   := $(empty) $(empty)
+
+###
+# Name of target with a '.' as filename prefix. foo/bar.o => foo/.bar.o
+dot-target = $(dir $@).$(notdir $@)
+
+###
+# The temporary file to save gcc -MD generated dependencies must not
+# contain a comma
+depfile = $(subst $(comma),_,$(dot-target).d)
+
+###
+# filename of target with directory and extension stripped
+basetarget = $(basename $(notdir $@))
+
+###
+# filename of first prerequisite with directory and extension stripped
+baseprereq = $(basename $(notdir $<))
+
+###
+# Escape single quote for use in echo statements
+escsq = $(subst $(squote),'\$(squote)',$1)
+
+###
+# Easy method for doing a status message
+       kecho := :
+ quiet_kecho := echo
+silent_kecho := :
+kecho := $($(quiet)kecho)
+
+###
+# filechk is used to check if the content of a generated file is updated.
+# Sample usage:
+# define filechk_sample
+#	echo $KERNELRELEASE
+# endef
+# version.h : Makefile
+#	$(call filechk,sample)
+# The rule defined shall write to stdout the content of the new file.
+# The existing file will be compared with the new one.
+# - If no file exist it is created
+# - If the content differ the new file is used
+# - If they are equal no change, and no timestamp update
+# - stdin is piped in from the first prerequisite ($<) so one has
+#   to specify a valid file as first prerequisite (often the kbuild file)
+define filechk
+	$(Q)set -e;				\
+	$(kecho) '  CHK     $@';		\
+	mkdir -p $(dir $@);			\
+	$(filechk_$(1)) < $< > [email protected];		\
+	if [ -r $@ ] && cmp -s $@ [email protected]; then	\
+		rm -f [email protected];			\
+	else					\
+		$(kecho) '  UPD     $@';	\
+		mv -f [email protected] $@;		\
+	fi
+endef
+
+######
+# gcc support functions
+# See documentation in Documentation/kbuild/makefiles.txt
+
+# cc-cross-prefix
+# Usage: CROSS_COMPILE := $(call cc-cross-prefix, m68k-linux-gnu- m68k-linux-)
+# Return first prefix where a prefix$(CC) is found in PATH.
+# If no $(CC) found in PATH with listed prefixes return nothing
+cc-cross-prefix =  \
+	$(word 1, $(foreach c,$(1),                                   \
+		$(shell set -e;                                       \
+		if (which $(strip $(c))$(CC)) > /dev/null 2>&1 ; then \
+			echo $(c);                                    \
+		fi)))
+
+# output directory for tests below
+TMPOUT := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/)
+
+# try-run
+# Usage: option = $(call try-run, $(CC)...-o "$$TMP",option-ok,otherwise)
+# Exit code chooses option. "$$TMP" is can be used as temporary file and
+# is automatically cleaned up.
+try-run = $(shell set -e;		\
+	TMP="$(TMPOUT).$$$$.tmp";	\
+	TMPO="$(TMPOUT).$$$$.o";	\
+	if ($(1)) >/dev/null 2>&1;	\
+	then echo "$(2)";		\
+	else echo "$(3)";		\
+	fi;				\
+	rm -f "$$TMP" "$$TMPO")
+
+# as-option
+# Usage: cflags-y += $(call as-option,-Wa$(comma)-isa=foo,)
+
+as-option = $(call try-run,\
+	$(CC) $(KBUILD_CFLAGS) $(1) -c -x assembler /dev/null -o "$$TMP",$(1),$(2))
+
+# as-instr
+# Usage: cflags-y += $(call as-instr,instr,option1,option2)
+
+as-instr = $(call try-run,\
+	printf "%b\n" "$(1)" | $(CC) $(KBUILD_AFLAGS) -c -x assembler -o "$$TMP" -,$(2),$(3))
+
+# cc-option
+# Usage: cflags-y += $(call cc-option,-march=winchip-c6,-march=i586)
+
+cc-option = $(call try-run,\
+	$(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(1) -c -x c /dev/null -o "$$TMP",$(1),$(2))
+
+# cc-option-yn
+# Usage: flag := $(call cc-option-yn,-march=winchip-c6)
+cc-option-yn = $(call try-run,\
+	$(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(1) -c -x c /dev/null -o "$$TMP",y,n)
+
+# cc-option-align
+# Prefix align with either -falign or -malign
+cc-option-align = $(subst -functions=0,,\
+	$(call cc-option,-falign-functions=0,-malign-functions=0))
+
+# cc-disable-warning
+# Usage: cflags-y += $(call cc-disable-warning,unused-but-set-variable)
+cc-disable-warning = $(call try-run,\
+	$(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) -W$(strip $(1)) -c -x c /dev/null -o "$$TMP",-Wno-$(strip $(1)))
+
+# cc-version
+# Usage gcc-ver := $(call cc-version)
+cc-version = $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-version.sh $(CC))
+
+# cc-fullversion
+# Usage gcc-ver := $(call cc-fullversion)
+cc-fullversion = $(shell $(CONFIG_SHELL) \
+	$(srctree)/scripts/gcc-version.sh -p $(CC))
+
+# cc-ifversion
+# Usage:  EXTRA_CFLAGS += $(call cc-ifversion, -lt, 0402, -O1)
+cc-ifversion = $(shell [ $(call cc-version, $(CC)) $(1) $(2) ] && echo $(3))
+
+# cc-ldoption
+# Usage: ldflags += $(call cc-ldoption, -Wl$(comma)--hash-style=both)
+cc-ldoption = $(call try-run,\
+	$(CC) $(1) -nostdlib -x c /dev/null -o "$$TMP",$(1),$(2))
+
+# ld-option
+# Usage: LDFLAGS += $(call ld-option, -X)
+ld-option = $(call try-run,\
+	$(CC) -x c /dev/null -c -o "$$TMPO" ; $(LD) $(1) "$$TMPO" -o "$$TMP",$(1),$(2))
+
+# ar-option
+# Usage: KBUILD_ARFLAGS := $(call ar-option,D)
+# Important: no spaces around options
+ar-option = $(call try-run, $(AR) rc$(1) "$$TMP",$(1),$(2))
+
+######
+
+###
+# Shorthand for $(Q)$(MAKE) -f scripts/Makefile.build obj=
+# Usage:
+# $(Q)$(MAKE) $(build)=dir
+build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build obj
+
+###
+# Shorthand for $(Q)$(MAKE) -f scripts/Makefile.modbuiltin obj=
+# Usage:
+# $(Q)$(MAKE) $(modbuiltin)=dir
+modbuiltin := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.modbuiltin obj
+
+# Prefix -I with $(srctree) if it is not an absolute path.
+# skip if -I has no parameter
+addtree = $(if $(patsubst -I%,%,$(1)), \
+$(if $(filter-out -I/%,$(1)),$(patsubst -I%,-I$(srctree)/%,$(1))) $(1))
+
+# Find all -I options and call addtree
+flags = $(foreach o,$($(1)),$(if $(filter -I%,$(o)),$(call addtree,$(o)),$(o)))
+
+# echo command.
+# Short version is used, if $(quiet) equals `quiet_', otherwise full one.
+echo-cmd = $(if $($(quiet)cmd_$(1)),\
+	echo '  $(call escsq,$($(quiet)cmd_$(1)))$(echo-why)';)
+
+# printing commands
+cmd = @$(echo-cmd) $(cmd_$(1))
+
+# Add $(obj)/ for paths that are not absolute
+objectify = $(foreach o,$(1),$(if $(filter /%,$(o)),$(o),$(obj)/$(o)))
+
+###
+# if_changed      - execute command if any prerequisite is newer than
+#                   target, or command line has changed
+# if_changed_dep  - as if_changed, but uses fixdep to reveal dependencies
+#                   including used config symbols
+# if_changed_rule - as if_changed but execute rule instead
+# See Documentation/kbuild/makefiles.txt for more info
+
+ifneq ($(KBUILD_NOCMDDEP),1)
+# Check if both arguments has same arguments. Result is empty string if equal.
+# User may override this check using make KBUILD_NOCMDDEP=1
+arg-check = $(strip $(filter-out $(cmd_$(1)), $(cmd_$@)) \
+                    $(filter-out $(cmd_$@),   $(cmd_$(1))) )
+else
+arg-check = $(if $(strip $(cmd_$@)),,1)
+endif
+
+# >'< substitution is for echo to work,
+# >$< substitution to preserve $ when reloading .cmd file
+# note: when using inline perl scripts [perl -e '...$$t=1;...']
+# in $(cmd_xxx) double $$ your perl vars
+make-cmd = $(subst \\,\\\\,$(subst \#,\\\#,$(subst $$,$$$$,$(call escsq,$(cmd_$(1))))))
+
+# Find any prerequisites that is newer than target or that does not exist.
+# PHONY targets skipped in both cases.
+any-prereq = $(filter-out $(PHONY),$?) $(filter-out $(PHONY) $(wildcard $^),$^)
+
+# Execute command if command has changed or prerequisite(s) are updated.
+#
+if_changed = $(if $(strip $(any-prereq) $(arg-check)),                       \
+	@set -e;                                                             \
+	$(echo-cmd) $(cmd_$(1));                                             \
+	echo 'cmd_$@ := $(make-cmd)' > $(dot-target).cmd)
+
+# Execute the command and also postprocess generated .d dependencies file.
+if_changed_dep = $(if $(strip $(any-prereq) $(arg-check) ),                  \
+	@set -e;                                                             \
+	$(echo-cmd) $(cmd_$(1));                                             \
+	scripts/basic/fixdep $(depfile) $@ '$(make-cmd)' > $(dot-target).tmp;\
+	rm -f $(depfile);                                                    \
+	mv -f $(dot-target).tmp $(dot-target).cmd)
+
+# Usage: $(call if_changed_rule,foo)
+# Will check if $(cmd_foo) or any of the prerequisites changed,
+# and if so will execute $(rule_foo).
+if_changed_rule = $(if $(strip $(any-prereq) $(arg-check) ),                 \
+	@set -e;                                                             \
+	$(rule_$(1)))
+
+###
+# why - tell why a a target got build
+#       enabled by make V=2
+#       Output (listed in the order they are checked):
+#          (1) - due to target is PHONY
+#          (2) - due to target missing
+#          (3) - due to: file1.h file2.h
+#          (4) - due to command line change
+#          (5) - due to missing .cmd file
+#          (6) - due to target not in $(targets)
+# (1) PHONY targets are always build
+# (2) No target, so we better build it
+# (3) Prerequisite is newer than target
+# (4) The command line stored in the file named dir/.target.cmd
+#     differed from actual command line. This happens when compiler
+#     options changes
+# (5) No dir/.target.cmd file (used to store command line)
+# (6) No dir/.target.cmd file and target not listed in $(targets)
+#     This is a good hint that there is a bug in the kbuild file
+ifeq ($(KBUILD_VERBOSE),2)
+why =                                                                        \
+    $(if $(filter $@, $(PHONY)),- due to target is PHONY,                    \
+        $(if $(wildcard $@),                                                 \
+            $(if $(strip $(any-prereq)),- due to: $(any-prereq),             \
+                $(if $(arg-check),                                           \
+                    $(if $(cmd_$@),- due to command line change,             \
+                        $(if $(filter $@, $(targets)),                       \
+                            - due to missing .cmd file,                      \
+                            - due to $(notdir $@) not in $$(targets)         \
+                         )                                                   \
+                     )                                                       \
+                 )                                                           \
+             ),                                                              \
+             - due to target missing                                         \
+         )                                                                   \
+     )
+
+echo-why = $(call escsq, $(strip $(why)))
+endif

index 0c1eef3..e4045bc 100644
@@ -102,9 +102,10 @@ OBJTREE		:= $(if $(BUILD_DIR),$(BUILD_DIR),$(CURDIR))
 SPLTREE		:= $(OBJTREE)/spl
 TPLTREE		:= $(OBJTREE)/tpl
 SRCTREE		:= $(CURDIR)
+srctree		:= $(SRCTREE)
 TOPDIR		:= $(SRCTREE)
 LNDIR		:= $(OBJTREE)
-export	TOPDIR SRCTREE OBJTREE SPLTREE TPLTREE
+export	TOPDIR SRCTREE srctree OBJTREE SPLTREE TPLTREE
 
 MKCONFIG	:= $(SRCTREE)/mkconfig
 export MKCONFIG

@@ -126,8 +127,6 @@ unexport CDPATH
 
 #########################################################################
 
-build := -f $(TOPDIR)/scripts/Makefile.build -C
-
 # The "tools" are needed early, so put this first
 # Don't include stuff already done in $(LIBS)
 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC

@@ -198,6 +197,10 @@ HOSTCFLAGS  += $(call os_x_before, 10, 4, "-traditional-cpp")
 HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
 endif
 
+# We need some generic definitions (do not try to remake the file).
+$(srctree)/scripts/Kbuild.include: ;
+include $(srctree)/scripts/Kbuild.include
+
 # Make variables (CC, etc...)
 
 AS		= $(CROSS_COMPILE)as

index dfe81fa..ba42641 100644
@@ -48,35 +48,6 @@ PLATFORM_CPPFLAGS =
 PLATFORM_LDFLAGS =
 
 #########################################################################
-#
-# Option checker, gcc version (courtesy linux kernel) to ensure
-# only supported compiler options are used
-#
-CC_OPTIONS_CACHE_FILE := $(OBJTREE)/include/generated/cc_options.mk
-CC_TEST_OFILE := $(OBJTREE)/include/generated/cc_test_file.o
-
--include $(CC_OPTIONS_CACHE_FILE)
-
-cc-option-sys = $(shell mkdir -p $(dir $(CC_TEST_OFILE)); \
-		if $(CC) $(CFLAGS) $(1) -S -xc /dev/null -o $(CC_TEST_OFILE) \
-		> /dev/null 2>&1; then \
-		echo 'CC_OPTIONS += $(strip $1)' >> $(CC_OPTIONS_CACHE_FILE); \
-		echo "$(1)"; fi)
-
-ifeq ($(CONFIG_CC_OPT_CACHE_DISABLE),y)
-cc-option = $(strip $(if $(call cc-option-sys,$1),$1,$2))
-else
-cc-option = $(strip $(if $(findstring $1,$(CC_OPTIONS)),$1,\
-		$(if $(call cc-option-sys,$1),$1,$2)))
-endif
-
-# cc-version
-# Usage gcc-ver := $(call cc-version)
-cc-version = $(shell $(CONFIG_SHELL) $(SRCTREE)/scripts/gcc-version.sh $(CC))
-binutils-version = $(shell $(CONFIG_SHELL) $(SRCTREE)/scripts/binutils-version.sh $(AS))
-dtc-version = $(shell $(CONFIG_SHELL) $(SRCTREE)/scripts/dtc-version.sh $(DTC))
-
-#########################################################################
 
 # Load generated board configuration
 ifeq ($(CONFIG_TPL_BUILD),y)

index 547e15d..ca5fd56 100644
@@ -140,6 +140,10 @@ cc-fullversion = $(shell $(CONFIG_SHELL) \
 # Usage:  EXTRA_CFLAGS += $(call cc-ifversion, -lt, 0402, -O1)
 cc-ifversion = $(shell [ $(call cc-version, $(CC)) $(1) $(2) ] && echo $(3))
 
+# added for U-Boot
+binutils-version = $(shell $(CONFIG_SHELL) $(srctree)/scripts/binutils-version.sh $(AS))
+dtc-version = $(shell $(CONFIG_SHELL) $(srctree)/scripts/dtc-version.sh $(DTC))
+
 # cc-ldoption
 # Usage: ldflags += $(call cc-ldoption, -Wl$(comma)--hash-style=both)
 cc-ldoption = $(call try-run,\

@@ -161,7 +165,9 @@ ar-option = $(call try-run, $(AR) rc$(1) "$$TMP",$(1),$(2))
 # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.build obj=
 # Usage:
 # $(Q)$(MAKE) $(build)=dir
-build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build obj
+#build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build obj
+# temporary
+build := -f $(srctree)/scripts/Makefile.build -C
 
 ###
 # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.modbuiltin obj=

index 1b3d77f..7789efa 100644
@@ -2,6 +2,7 @@
 .PHONY: all
 all:
 
+include $(srctree)/scripts/Kbuild.include
 include $(TOPDIR)/config.mk
 
 # variable LIB is used in examples/standalone/Makefile

index e76b2b4..736acd7 100644
@@ -24,6 +24,8 @@ else
 SPL_BIN := u-boot-spl
 endif
 
+include $(srctree)/scripts/Kbuild.include
+
 include $(TOPDIR)/config.mk
 
 # We want the final binaries in this directory

@@ -126,8 +128,6 @@ ifeq ($(wildcard $(LDSCRIPT)),)
 $(error could not find linker script)
 endif
 
-build := -f $(TOPDIR)/scripts/Makefile.build -C
-
 # Special flags for CPP when processing the linker script.
 # Pass the version down so we can handle backwards compatibility
 # on the fly.

index e4045bc..3a97483 100644
@@ -226,11 +226,46 @@ CHECK		= sparse
 CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
 		  -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
 
+KBUILD_CPPFLAGS := -D__KERNEL__
+
+KBUILD_CFLAGS   := -Wall -Wstrict-prototypes \
+		   -Wno-format-security \
+		   -fno-builtin -ffreestanding
+KBUILD_AFLAGS   := -D__ASSEMBLY__
+
 export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
 export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
 export MAKE AWK
 export DTC CHECK CHECKFLAGS
 
+export KBUILD_CPPFLAGS
+export KBUILD_CFLAGS KBUILD_AFLAGS
+
+KBUILD_CFLAGS += -Os #-fomit-frame-pointer
+
+ifdef BUILD_TAG
+KBUILD_CFLAGS += -DBUILD_TAG='"$(BUILD_TAG)"'
+endif
+
+KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
+
+KBUILD_CFLAGS	+= -g
+# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
+# option to the assembler.
+KBUILD_AFLAGS	+= -g
+
+# Report stack usage if supported
+KBUILD_CFLAGS += $(call cc-option,-fstack-usage)
+
+KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
+
+# turn jbsr into jsr for m68k
+ifeq ($(ARCH),m68k)
+ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
+KBUILD_AFLAGS += -Wa,-gstabs,-S
+endif
+endif
+
 # load other configuration
 include $(TOPDIR)/config.mk
 

67 lines not on this page · raw message

index 3a97483..9c39022 100644
@@ -226,6 +226,15 @@ CHECK		= sparse
 CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
 		  -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
 
+# Use UBOOTINCLUDE when you must reference the include/ directory.
+# Needed to be compatible with the O= option
+UBOOTINCLUDE    :=
+ifneq ($(OBJTREE),$(SRCTREE))
+UBOOTINCLUDE	+= -I$(OBJTREE)/include
+endif
+UBOOTINCLUDE	+= -I$(srctree)/include \
+		-I$(srctree)/arch/$(ARCH)/include
+
 KBUILD_CPPFLAGS := -D__KERNEL__
 
 KBUILD_CFLAGS   := -Wall -Wstrict-prototypes \

@@ -238,7 +247,7 @@ export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
 export MAKE AWK
 export DTC CHECK CHECKFLAGS
 
-export KBUILD_CPPFLAGS
+export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE
 export KBUILD_CFLAGS KBUILD_AFLAGS
 
 KBUILD_CFLAGS += -Os #-fomit-frame-pointer

@@ -254,6 +263,9 @@ KBUILD_CFLAGS	+= -g
 # option to the assembler.
 KBUILD_AFLAGS	+= -g
 
+NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
+CHECKFLAGS     += $(NOSTDINC_FLAGS)
+
 # Report stack usage if supported
 KBUILD_CFLAGS += $(call cc-option,-fstack-usage)
 

index 04b63f6..f700ee1 100644
@@ -94,8 +94,6 @@ RELFLAGS= $(PLATFORM_RELFLAGS)
 
 OBJCFLAGS += --gap-fill=0xff
 
-gccincdir := $(shell $(CC) -print-file-name=include)
-
 CPPFLAGS = $(KBUILD_CPPFLAGS) $(RELFLAGS)
 
 # Enable garbage collection of un-used sections for SPL

@@ -123,13 +121,8 @@ Please undefined CONFIG_SYS_GENERIC_BOARD in your board config file)
 endif
 endif
 
-ifneq ($(OBJTREE),$(SRCTREE))
-CPPFLAGS += -I$(OBJTREE)/include
-endif
-
-CPPFLAGS += -I$(TOPDIR)/include -I$(SRCTREE)/arch/$(ARCH)/include
-CPPFLAGS += -nostdinc	\
-	-isystem $(gccincdir) -pipe $(PLATFORM_CPPFLAGS)
+CPPFLAGS += $(UBOOTINCLUDE)
+CPPFLAGS += $(NOSTDINC_FLAGS) -pipe $(PLATFORM_CPPFLAGS)
 
 CFLAGS := $(KBUILD_CFLAGS) $(CPPFLAGS)
 

index c3cdaf0..21341b7 100644
@@ -175,11 +175,9 @@ HOSTSRCS += $(addprefix $(SRCTREE)/lib/libfdt/,$(LIBFDT_OBJ_FILES-y:.o=.c))
 # Define _GNU_SOURCE to obtain the getline prototype from stdio.h
 #
 HOST_EXTRACFLAGS += -include $(SRCTREE)/include/libfdt_env.h \
-		-idirafter $(SRCTREE)/include \
-		-idirafter $(SRCTREE)/arch/$(ARCH)/include \
-		-idirafter $(OBJTREE)/include \
-		-I $(SRCTREE)/lib/libfdt \
-		-I $(SRCTREE)/tools \
+		$(patsubst -I%,-idirafter%, $(UBOOTINCLUDE)) \
+		-I$(SRCTREE)/lib/libfdt \
+		-I$(SRCTREE)/tools \
 		-DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE) \
 		-DUSE_HOSTCC \
 		-D__KERNEL_STRICT_NAMES \

index c303815..d47fe16 100644
@@ -6,9 +6,7 @@
 #
 
 # Compile for a hosted environment on the target
-HOST_EXTRACFLAGS  = -idirafter $(SRCTREE)/include \
-		-idirafter $(SRCTREE)/arch/$(ARCH)/include \
-		-idirafter $(OBJTREE)/include \
+HOST_EXTRACFLAGS  = $(patsubst -I%,-idirafter%, $(UBOOTINCLUDE)) \
 		-idirafter $(SRCTREE)/tools/env \
 		-DUSE_HOSTCC \
 		-DTEXT_BASE=$(TEXT_BASE)

index 9c39022..b24b425 100644
@@ -281,13 +281,27 @@ endif
 # load other configuration
 include $(TOPDIR)/config.mk
 
+ifneq ($(CONFIG_SYS_TEXT_BASE),)
+KBUILD_CPPFLAGS += -DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE)
+endif
+
+export CONFIG_SYS_TEXT_BASE
+
+LDFLAGS_u-boot += -T $(obj)u-boot.lds $(LDFLAGS_FINAL)
+ifneq ($(CONFIG_SYS_TEXT_BASE),)
+LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
+endif
+
 # Targets which don't build the source code
-NON_BUILD_TARGETS = backup clean clobber distclean mrproper tidy unconfig
+NON_BUILD_TARGETS = backup clean clobber distclean mrproper tidy unconfig %_config
 
 # Only do the generic board check when actually building, not configuring
 ifeq ($(filter $(NON_BUILD_TARGETS),$(MAKECMDGOALS)),)
-ifeq ($(findstring _config,$(MAKECMDGOALS)),)
-$(CHECK_GENERIC_BOARD)
+ifeq ($(__HAVE_ARCH_GENERIC_BOARD),)
+ifneq ($(CONFIG_SYS_GENERIC_BOARD),)
+CHECK_GENERIC_BOARD = $(error Your architecture does not support generic board. \
+Please undefined CONFIG_SYS_GENERIC_BOARD in your board config file)
+endif
 endif
 endif
 

index f700ee1..54d1d8b 100644
@@ -102,10 +102,6 @@ CPPFLAGS += -ffunction-sections -fdata-sections
 LDFLAGS_FINAL += --gc-sections
 endif
 
-ifneq ($(CONFIG_SYS_TEXT_BASE),)
-CPPFLAGS += -DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE)
-endif
-
 ifeq ($(CONFIG_SPL_BUILD),y)
 CPPFLAGS += -DCONFIG_SPL_BUILD
 ifeq ($(CONFIG_TPL_BUILD),y)

@@ -113,14 +109,6 @@ CPPFLAGS += -DCONFIG_TPL_BUILD
 endif
 endif
 
-# Does this architecture support generic board init?
-ifeq ($(__HAVE_ARCH_GENERIC_BOARD),)
-ifneq ($(CONFIG_SYS_GENERIC_BOARD),)
-CHECK_GENERIC_BOARD = $(error Your architecture does not support generic board. \
-Please undefined CONFIG_SYS_GENERIC_BOARD in your board config file)
-endif
-endif
-
 CPPFLAGS += $(UBOOTINCLUDE)
 CPPFLAGS += $(NOSTDINC_FLAGS) -pipe $(PLATFORM_CPPFLAGS)
 

@@ -141,11 +129,6 @@ AFLAGS := $(KBUILD_AFLAGS) $(CPPFLAGS)
 LDFLAGS += $(PLATFORM_LDFLAGS)
 LDFLAGS_FINAL += -Bstatic
 
-LDFLAGS_u-boot += -T $(obj)u-boot.lds $(LDFLAGS_FINAL)
-ifneq ($(CONFIG_SYS_TEXT_BASE),)
-LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
-endif
-
 LDFLAGS_$(SPL_BIN) += -T $(obj)u-boot-spl.lds $(LDFLAGS_FINAL)
 ifneq ($(CONFIG_SPL_TEXT_BASE),)
 LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE)

@@ -153,4 +136,4 @@ endif
 
 #########################################################################
 
-export	CONFIG_SYS_TEXT_BASE PLATFORM_CPPFLAGS PLATFORM_RELFLAGS CPPFLAGS CFLAGS AFLAGS
+export PLATFORM_CPPFLAGS PLATFORM_RELFLAGS CPPFLAGS CFLAGS AFLAGS

index 54d1d8b..597a566 100644
@@ -95,20 +95,6 @@ RELFLAGS= $(PLATFORM_RELFLAGS)
 OBJCFLAGS += --gap-fill=0xff
 
 CPPFLAGS = $(KBUILD_CPPFLAGS) $(RELFLAGS)
-
-# Enable garbage collection of un-used sections for SPL
-ifeq ($(CONFIG_SPL_BUILD),y)
-CPPFLAGS += -ffunction-sections -fdata-sections
-LDFLAGS_FINAL += --gc-sections
-endif
-
-ifeq ($(CONFIG_SPL_BUILD),y)
-CPPFLAGS += -DCONFIG_SPL_BUILD
-ifeq ($(CONFIG_TPL_BUILD),y)
-CPPFLAGS += -DCONFIG_TPL_BUILD
-endif
-endif
-
 CPPFLAGS += $(UBOOTINCLUDE)
 CPPFLAGS += $(NOSTDINC_FLAGS) -pipe $(PLATFORM_CPPFLAGS)
 

@@ -129,11 +115,6 @@ AFLAGS := $(KBUILD_AFLAGS) $(CPPFLAGS)
 LDFLAGS += $(PLATFORM_LDFLAGS)
 LDFLAGS_FINAL += -Bstatic
 
-LDFLAGS_$(SPL_BIN) += -T $(obj)u-boot-spl.lds $(LDFLAGS_FINAL)
-ifneq ($(CONFIG_SPL_TEXT_BASE),)
-LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE)
-endif
-
 #########################################################################
 
 export PLATFORM_CPPFLAGS PLATFORM_RELFLAGS CPPFLAGS CFLAGS AFLAGS

index 736acd7..001205b 100644
@@ -17,6 +17,15 @@
 CONFIG_SPL_BUILD := y
 export CONFIG_SPL_BUILD
 
+KBUILD_CPPFLAGS += -DCONFIG_SPL_BUILD
+ifeq ($(CONFIG_TPL_BUILD),y)
+KBUILD_CPPFLAGS += -DCONFIG_TPL_BUILD
+endif
+
+# Enable garbage collection of un-used sections for SPL
+KBUILD_CFLAGS += -ffunction-sections -fdata-sections
+LDFLAGS_FINAL += --gc-sections
+
 ifeq ($(CONFIG_TPL_BUILD),y)
 export CONFIG_TPL_BUILD
 SPL_BIN := u-boot-tpl

@@ -172,6 +181,11 @@ endif
 $(obj)$(SPL_BIN).bin:	$(obj)$(SPL_BIN)
 	$(OBJCOPY) $(OBJCFLAGS) $(SPL_OBJCFLAGS) -O binary $< $@
 
+LDFLAGS_$(SPL_BIN) += -T $(obj)u-boot-spl.lds $(LDFLAGS_FINAL)
+ifneq ($(CONFIG_SPL_TEXT_BASE),)
+LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE)
+endif
+
 GEN_UBOOT = \
 	cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) $(__START) \
 		--start-group $(__LIBS) --end-group $(PLATFORM_LIBS) \

index 597a566..ed1a519 100644
@@ -102,14 +102,6 @@ CFLAGS := $(KBUILD_CFLAGS) $(CPPFLAGS)
 
 BCURDIR = $(subst $(SRCTREE)/,,$(CURDIR:$(obj)%=%))
 
-ifeq ($(findstring examples/,$(BCURDIR)),)
-ifeq ($(CONFIG_SPL_BUILD),)
-ifdef FTRACE
-CFLAGS += -finstrument-functions -DFTRACE
-endif
-endif
-endif
-
 AFLAGS := $(KBUILD_AFLAGS) $(CPPFLAGS)
 
 LDFLAGS += $(PLATFORM_LDFLAGS)

index 52f4368..ee3c487 100644
@@ -4,6 +4,10 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
+ifdef FTRACE
+CFLAGS += -finstrument-functions -DFTRACE
+endif
+
 ifeq ($(ARCH),powerpc)
 LOAD_ADDR = 0x40000
 endif

index cad4409..1f8d70c 100644
@@ -5,6 +5,10 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
+ifdef FTRACE
+CFLAGS += -finstrument-functions -DFTRACE
+endif
+
 extra-y        := hello_world
 extra-$(CONFIG_SMC91111)           += smc91111_eeprom
 extra-$(CONFIG_SMC911X)            += smc911x_eeprom

index 562071a..01d0598 100755
@@ -668,8 +668,6 @@ build_target() {
 		output_dir="${OUTPUT_PREFIX}"
 	fi
 
-	export BUILD_DIR="${output_dir}"
-
 	target_arch=$(get_target_arch ${target})
 	eval cross_toolchain=\$CROSS_COMPILE_`echo $target_arch | tr '[:lower:]' '[:upper:]'`
 	if [ "${cross_toolchain}" ] ; then

@@ -680,6 +678,10 @@ build_target() {
 	    MAKE=make
 	fi
 
+	if [  "${output_dir}" != "." ] ; then
+		MAKE="${MAKE} O=${output_dir}"
+	fi
+
 	${MAKE} distclean >/dev/null
 	${MAKE} -s ${target}_config
 

903 lines not on this page · raw message

index f74228c..ab1fc4a 100644
@@ -14,6 +14,6 @@ ifdef CONFIG_SPL_BUILD
 ALL-y	+= $(OBJTREE)/SPL
 endif
 else
-ALL-y	+= $(obj)u-boot.imx
+ALL-y	+= u-boot.imx
 endif
 endif

index 4d9895f..f27ca15 100644
@@ -13,6 +13,6 @@ ifdef CONFIG_SPL_BUILD
 ALL-y	+= $(OBJTREE)/SPL
 endif
 else
-ALL-y	+= $(obj)u-boot.imx
+ALL-y	+= u-boot.imx
 endif
 endif

index d5c978b..69e9d5a 100644
@@ -4,5 +4,5 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 ifndef CONFIG_SPL_BUILD
-ALL-$(CONFIG_SPL_FRAMEWORK)	+= $(obj)u-boot.ais
+ALL-$(CONFIG_SPL_FRAMEWORK)	+= u-boot.ais
 endif

index 8e3668f..1c06fb4 100644
@@ -7,5 +7,5 @@ ifdef CONFIG_SPL_BUILD
 ALL-y	+= $(OBJTREE)/MLO
 ALL-$(CONFIG_SPL_SPI_SUPPORT) += $(OBJTREE)/MLO.byteswap
 else
-ALL-y	+= $(obj)u-boot.img
+ALL-y	+= u-boot.img
 endif

index 38b7c40..d01f3d9 100644
@@ -20,6 +20,6 @@ ifdef CONFIG_SPL_BUILD
 ALL-y	+= $(OBJTREE)/SPL
 endif
 else
-ALL-y	+= $(obj)u-boot.imx
+ALL-y	+= u-boot.imx
 endif
 endif

index 1d6a57c..2a3d1c5 100644
@@ -11,5 +11,5 @@
 ifdef CONFIG_SPL_BUILD
 ALL-y	+= $(OBJTREE)/MLO
 else
-ALL-y	+= $(obj)u-boot.img
+ALL-y	+= u-boot.img
 endif

index 1d6a57c..2a3d1c5 100644
@@ -11,5 +11,5 @@
 ifdef CONFIG_SPL_BUILD
 ALL-y	+= $(OBJTREE)/MLO
 else
-ALL-y	+= $(obj)u-boot.img
+ALL-y	+= u-boot.img
 endif

index 2673af9..261b272 100644
@@ -9,5 +9,5 @@
 ifdef CONFIG_SPL_BUILD
 ALL-y	+= $(OBJTREE)/MLO
 else
-ALL-y	+= $(obj)u-boot.img
+ALL-y	+= u-boot.img
 endif

index d33ab7d..3d18491 100644
@@ -4,5 +4,5 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 ifndef CONFIG_SPL_BUILD
-ALL-y	+= $(obj)u-boot.img
+ALL-y	+= u-boot.img
 endif

index 73fa798..c752025 100644
@@ -12,7 +12,7 @@ CONFIG_STANDALONE_LOAD_ADDR ?= 0x1000 -m elf32bfin
 ifeq ($(CONFIG_BFIN_CPU),)
 CONFIG_BFIN_CPU := \
 	$(shell awk '$$2 == "CONFIG_BFIN_CPU" { print $$3 }' \
-		$(src)include/configs/$(BOARD).h)
+		$(srctree)/include/configs/$(BOARD).h)
 else
 CONFIG_BFIN_CPU := $(strip $(CONFIG_BFIN_CPU:"%"=%))
 endif

@@ -28,10 +28,10 @@ PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections
 PLATFORM_RELFLAGS += -mcpu=$(CONFIG_BFIN_CPU)
 
 ifneq ($(CONFIG_BFIN_BOOT_MODE),BFIN_BOOT_BYPASS)
-ALL-y += $(obj)u-boot.ldr
+ALL-y += u-boot.ldr
 endif
 ifeq ($(CONFIG_ENV_IS_EMBEDDED_IN_LDR),y)
-CREATE_LDR_ENV = $(obj)tools/envcrc --binary > $(obj)env-ldr.o
+CREATE_LDR_ENV = tools/envcrc --binary > env-ldr.o
 HOSTCFLAGS_NOPED_ADSP := \
 	$(shell $(CPP) -dD - -mcpu=$(CONFIG_BFIN_CPU) </dev/null \
 		| awk '$$2 ~ /ADSP/ { print "-D" $$2 }')

@@ -47,10 +47,10 @@ LDR_FLAGS-$(CONFIG_BFIN_BOOTROM_USES_EVT1) += -J
 
 LDR_FLAGS += --bmode $(subst BFIN_BOOT_,,$(CONFIG_BFIN_BOOT_MODE))
 LDR_FLAGS += --use-vmas
-LDR_FLAGS += --initcode $(obj)$(CPUDIR)/initcode.o
+LDR_FLAGS += --initcode $(CPUDIR)/initcode.o
 ifneq ($(CONFIG_BFIN_BOOT_MODE),BFIN_BOOT_UART)
 LDR_FLAGS-$(CONFIG_ENV_IS_EMBEDDED_IN_LDR) += \
-	--punchit $$(($(CONFIG_ENV_OFFSET))):$$(($(CONFIG_ENV_SIZE))):$(obj)env-ldr.o
+	--punchit $$(($(CONFIG_ENV_OFFSET))):$$(($(CONFIG_ENV_SIZE))):env-ldr.o
 endif
 ifneq (,$(findstring s,$(MAKEFLAGS)))
 LDR_FLAGS += --quiet

index a61594a..369dc74 100644
@@ -25,9 +25,9 @@ extra-y += check_initcode
 
 # make sure our initcode (which goes into LDR) does not
 # have relocs or external references
-$(obj)initcode.o: CFLAGS += -fno-function-sections -fno-data-sections
+$(obj)/initcode.o: CFLAGS += -fno-function-sections -fno-data-sections
 READINIT = env LC_ALL=C $(CROSS_COMPILE)readelf -s $<
-$(obj)check_initcode: $(obj)initcode.o
+$(obj)/check_initcode: $(obj)/initcode.o
 ifneq ($(CONFIG_BFIN_BOOT_MODE),BFIN_BOOT_BYPASS)
 	@if $(READINIT) | grep '\<GLOBAL\>.*\<UND\>' ; then \
 		echo "$< contains external references!" 1>&2 ; \

@@ -35,7 +35,7 @@ ifneq ($(CONFIG_BFIN_BOOT_MODE),BFIN_BOOT_BYPASS)
 	fi
 endif
 
-$(obj)init.lds: init.lds.S
+$(obj)/init.lds: $(src)/init.lds.S
 	$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P $^ -o $@
-$(obj)init.elf: $(obj)init.lds $(obj)init.o $(obj)initcode.o
+$(obj)/init.elf: $(obj)/init.lds $(obj)/init.o $(obj)/initcode.o
 	$(LD) $(LDFLAGS) -T $^ -o $@

index 067f871..7ee7faa 100644
@@ -21,4 +21,4 @@ else
 PLATFORM_LDFLAGS  += -m elf32ltsmip
 endif
 
-CONFIG_STANDALONE_LOAD_ADDR ?= 0x80200000 -T mips.lds
+CONFIG_STANDALONE_LOAD_ADDR ?= 0x80200000 -T $(srctree)/$(src)/mips.lds

index d1a8b2c..02113a1 100644
@@ -21,4 +21,4 @@ else
 PLATFORM_LDFLAGS  += -m elf64ltsmip
 endif
 
-CONFIG_STANDALONE_LOAD_ADDR ?= 0xffffffff80200000 -T mips64.lds
+CONFIG_STANDALONE_LOAD_ADDR ?= 0xffffffff80200000 -T $(srctree)/$(src)/mips64.lds

index d81da21..00b0fd9 100644
@@ -12,4 +12,4 @@ else
 PLATFORM_LDFLAGS  += -m elf32ltsmip
 endif
 
-CONFIG_STANDALONE_LOAD_ADDR ?= 0x80200000 -T mips.lds
+CONFIG_STANDALONE_LOAD_ADDR ?= 0x80200000 -T $(srctree)/$(src)/mips.lds

index e93e3a8..550f8a4 100644
@@ -10,7 +10,7 @@
 
 CROSS_COMPILE ?= nds32le-linux-
 
-CONFIG_STANDALONE_LOAD_ADDR = 0x300000 -T nds32.lds
+CONFIG_STANDALONE_LOAD_ADDR = 0x300000 -T $(srctree)/$(src)/nds32.lds
 
 PLATFORM_RELFLAGS	+= -fno-strict-aliasing -fno-common -mrelax
 PLATFORM_RELFLAGS	+= -gdwarf-2

index a706d3c..ac780d4 100644
@@ -54,11 +54,11 @@ ifndef CONFIG_SPL_BUILD
 # Workaround for local bus unaligned access problems
 # on MPC512x and MPC5200
 ifdef CONFIG_MPC512X
-$(obj)ppcstring.o: AFLAGS += -Dmemcpy=__memcpy
+$(obj)/ppcstring.o: AFLAGS += -Dmemcpy=__memcpy
 obj-y += memcpy_mpc5200.o
 endif
 ifdef CONFIG_MPC5200
-$(obj)ppcstring.o: AFLAGS += -Dmemcpy=__memcpy
+$(obj)/ppcstring.o: AFLAGS += -Dmemcpy=__memcpy
 obj-y += memcpy_mpc5200.o
 endif
 endif

index b564294..c5f5426 100644
@@ -10,7 +10,7 @@
 obj-y	:= cpu.o os.o start.o state.o
 
 # os.c is build in the system environment, so needs standard includes
-$(obj)os.o: CFLAGS := $(filter-out -nostdinc,\
+$(obj)/os.o: CFLAGS := $(filter-out -nostdinc,\
 	$(patsubst -I%,-idirafter%,$(CFLAGS)))
-$(obj).depend.os: CPPFLAGS := $(filter-out -nostdinc,\
+$(obj)/.depend.os: CPPFLAGS := $(filter-out -nostdinc,\
 	$(patsubst -I%,-idirafter%,$(CPPFLAGS)))

index e94e7cb..9bb3724 100644
@@ -7,6 +7,7 @@
 
 CROSS_COMPILE ?= sparc-elf-
 
-CONFIG_STANDALONE_LOAD_ADDR ?= 0x00000000 -L $(gcclibdir) -T sparc.lds
+CONFIG_STANDALONE_LOAD_ADDR ?= 0x00000000 -L $(gcclibdir) \
+			-T $(srctree)/$(src)/sparc.lds
 
 PLATFORM_CPPFLAGS += -DCONFIG_SPARC -D__sparc__

index 638f790..a35d062 100644
@@ -23,5 +23,5 @@ obj-$(CONFIG_CMD_ZBOOT)	+= zimage.o
 LIBGCC := $(notdir $(NORMAL_LIBGCC))
 extra-y := $(LIBGCC)
 
-$(obj)$(LIBGCC): $(NORMAL_LIBGCC)
+$(obj)/$(LIBGCC): $(NORMAL_LIBGCC)
 	$(OBJCOPY) $< $@ --prefix-symbols=__normal_

index d7e7894..c7cfaca 100644
@@ -9,7 +9,7 @@
 
 UBL_CONFIG = $(SRCTREE)/board/$(BOARDDIR)/ublimage.cfg
 ifndef CONFIG_SPL_BUILD
-ALL-y += $(obj)u-boot.ubl
+ALL-y += u-boot.ubl
 else
 # as SPL_TEXT_BASE is not page-aligned, we need for some
 # linkers the -n flag (Do not page align data), to prevent

index 87e1912..bcf7ccf 100644
@@ -9,4 +9,4 @@
 
 obj-y	:= ../common/tamonten.o
 
-include ../../nvidia/common/common.mk
+include $(srctree)/board/nvidia/common/common.mk

index 87e1912..bcf7ccf 100644
@@ -9,4 +9,4 @@
 
 obj-y	:= ../common/tamonten.o
 
-include ../../nvidia/common/common.mk
+include $(srctree)/board/nvidia/common/common.mk

index 79d8602..a556b92 100644
@@ -7,4 +7,4 @@
 
 obj-y	:= ../common/tamonten-ng.o
 
-include ../../nvidia/common/common.mk
+include $(srctree)/board/nvidia/common/common.mk

index 87e1912..bcf7ccf 100644
@@ -9,4 +9,4 @@
 
 obj-y	:= ../common/tamonten.o
 
-include ../../nvidia/common/common.mk
+include $(srctree)/board/nvidia/common/common.mk

index b2d3b6b..e6a0b29 100644
@@ -16,4 +16,4 @@
 
 obj-y	:= paz00.o
 
-include ../../nvidia/common/common.mk
+include $(srctree)/board/nvidia/common/common.mk

index f3bd00d..311eb92 100644
@@ -7,4 +7,4 @@
 
 obj-y	:= trimslice.o
 
-include ../../nvidia/common/common.mk
+include $(srctree)/board/nvidia/common/common.mk

index 5f6c690..6aae9fa 100644
@@ -9,8 +9,8 @@ obj-y	= L1.o flash.o
 obj-y	+= init.o
 obj-y	+= bootscript.o
 
-$(obj)bootscript.c: $(obj)bootscript.image
-	od -t x1 -v -A x $^ | awk -f x2c.awk > $@
+$(obj)/bootscript.c: $(obj)/bootscript.image
+	od -t x1 -v -A x $^ | awk -f $(srctree)/$(src)/x2c.awk > $@
 
-$(obj)bootscript.image: $(src)bootscript.hush $(src)Makefile
-	-$(OBJTREE)/tools/mkimage -A ppc -O linux -T script -C none -a 0 -e 0 -n bootscript -d $(src)bootscript.hush $@
+$(obj)/bootscript.image: $(src)/bootscript.hush
+	-$(OBJTREE)/tools/mkimage -A ppc -O linux -T script -C none -a 0 -e 0 -n bootscript -d $< $@

index d4fa153..e516e91 100644
@@ -10,5 +10,5 @@ obj-y	:= h2200.o
 
 extra-y := h2200-header.bin
 
-$(obj)h2200-header.bin: $(obj)h2200-header.o
+$(obj)/h2200-header.bin: $(obj)/h2200-header.o
 	$(OBJCOPY) -O binary $< $@

index 879d794..1bc1d61 100644
@@ -8,5 +8,5 @@ obj-y	:= mvblm7.o pci.o fpga.o
 
 extra-y := bootscript.img
 
-$(obj)bootscript.img:
-	@mkimage -T script -C none -n M7_script -d bootscript $@
+$(obj)/bootscript.img: $(src)/bootscript
+	@mkimage -T script -C none -n M7_script -d $< $@

index b6a4f67..9454259 100644
@@ -12,5 +12,5 @@ obj-y	:= mvsmr.o fpga.o
 
 extra-y := bootscript.img
 
-$(obj)bootscript.img: bootscript
+$(obj)/bootscript.img: $(src)/bootscript
 	@mkimage -T script -C none -n mvSMR_Script -d $< $@

index e3fcf2b..e3b2651 100644
@@ -1,4 +1,4 @@
 # Copyright (c) 2011 The Chromium OS Authors.
 # SPDX-License-Identifier:	GPL-2.0+
 
-include common.mk
+include $(src)/common.mk

index 1e76128..b90d5d0 100644
@@ -10,7 +10,7 @@
 #
 
 # Check the U-Boot Image with a SHA1 checksum
-ALL-y += $(obj)u-boot.sha1
+ALL-y += u-boot.sha1
 
 PLATFORM_CPPFLAGS += -DCONFIG_440=1
 

index 31e88f4..37acba7 100644
@@ -13,7 +13,7 @@ always := $(hostprogs-y)
 #
 # TODO:
 # Fix the root cause in tools/mkorigenspl.c and delete the following work-around
-$(obj)tools/mkorigenspl: HOSTCFLAGS:=$(filter-out -O2,$(HOSTCFLAGS))
+$(obj)/tools/mkorigenspl: HOSTCFLAGS:=$(filter-out -O2,$(HOSTCFLAGS))
 else
 obj-y	+= origen.o
 endif

index 4d99ecd..a292ee8 100644
@@ -234,11 +234,10 @@ obj-$(CONFIG_FIT_SIGNATURE) += image-sig.o
 obj-y += memsize.o
 obj-y += stdio.o
 
-$(obj)env_embedded.o: $(src)env_embedded.c
+$(obj)/env_embedded.o: $(src)/env_embedded.c
 	$(CC) $(AFLAGS) -Wa,--no-warn \
-		-DENV_CRC=$(shell $(obj)../tools/envcrc) \
-		-c -o $@ $(src)env_embedded.c
+		-DENV_CRC=$(shell tools/envcrc) -c -o $@ $<
 
 # SEE README.arm-unaligned-accesses
-$(obj)hush.o: CFLAGS += $(PLATFORM_NO_UNALIGNED)
-$(obj)fdt_support.o: CFLAGS += $(PLATFORM_NO_UNALIGNED)
+$(obj)/hush.o: CFLAGS += $(PLATFORM_NO_UNALIGNED)
+$(obj)/fdt_support.o: CFLAGS += $(PLATFORM_NO_UNALIGNED)

59 lines not on this page · raw message

index 29b79d7..aa7c44b 100644
@@ -6,8 +6,6 @@
 # To add a new book the only step required is to add the book to the
 # list of DOCBOOKS.
 
-include $(TOPDIR)/config.mk
-
 DOCBOOKS := fs.xml linker_lists.xml stdio.xml
 
 ###

@@ -122,7 +120,7 @@ quiet_cmd_db2pdf = PDF     $@
 
 
 index = index.html
-main_idx = $(index)
+main_idx = doc/DocBook/$(index)
 build_main_index = rm -rf $(main_idx); \
 		   echo '<h1>U-Boot Bootloader HTML Documentation</h1>' >> $(main_idx) && \
 		   echo '<h2>U-Boot Version: $(U_BOOT_VERSION)</h2>' >> $(main_idx) && \

@@ -151,7 +149,7 @@ quiet_cmd_db2man = MAN     $@
 	@(which xmlto > /dev/null 2>&1) || \
 	 (echo "*** You need to install xmlto ***"; \
 	  exit 1)
-	$(Q)mkdir -p $(obj)man
+	$(Q)mkdir -p $(obj)/man
 	$(call cmd_db2man)
 	@touch $@
 

index 52a2ceb..330f36f 100644
@@ -8,7 +8,7 @@ obj-y = atibios.o biosemu.o besys.o bios.o \
 	$(X86DIR)/sys.o \
 	$(X86DIR)/debug.o
 
-EXTRA_CFLAGS += -I. -I./include \
+EXTRA_CFLAGS += -I$(srctree)/$(src) -I$(srctree)/$(src)/include \
 	-D__PPC__  -D__BIG_ENDIAN__
 
 CFLAGS += $(EXTRA_CFLAGS)

index 6c7198f..d81f32d 100644
@@ -26,7 +26,7 @@ DTC_FLAGS := -R 4 -p 0x1000 \
 # Use a constant name for this so we can access it from C code.
 # objcopy doesn't seem to allow us to set the symbol name independently of
 # the filename.
-DT_BIN	:= $(obj)dt.dtb
+DT_BIN	:= $(obj)/dt.dtb
 
 $(DT_BIN): $(TOPDIR)/board/$(VENDOR)/dts/$(DEVICE_TREE).dts
 	$(CPP) $(DTS_CPPFLAGS) $< -o $(DT_BIN).dts.tmp

@@ -38,7 +38,7 @@ process_lds = \
 # Run the compiler and get the link script from the linker
 GET_LDS = $(CC) $(CFLAGS) $(LDFLAGS) -Wl,--verbose 2>&1
 
-$(obj)dt.o: $(DT_BIN)
+$(obj)/dt.o: $(DT_BIN)
 	# We want the output format and arch.
 	# We also hope to win a prize for ugliest Makefile / shell interaction
 	# We look in the LDSCRIPT first.

@@ -62,7 +62,7 @@ $(obj)dt.o: $(DT_BIN)
 	\
 	cd $(dir ${DT_BIN}) && \
 	$(OBJCOPY) -I binary -O $${oformat} -B $${oarch} \
-		$(notdir ${DT_BIN}) $@
+		$(notdir ${DT_BIN}) $(notdir $@)
 	rm $(DT_BIN)
 
 obj-$(CONFIG_OF_EMBED)	:= dt.o

index ee3c487..db0bb34 100644
@@ -40,23 +40,23 @@ SRCS	+= $(addprefix $(SRCTREE)/examples/api/,$(COBJ_FILES-y:.o=.c))
 SRCS	+= $(addprefix $(SRCTREE)/examples/api/,$(SOBJ_FILES-y:.o=.S))
 
 # Create a list of object files to be compiled
-OBJS	+= $(addprefix $(obj),$(SOBJ_FILES-y))
-OBJS	+= $(addprefix $(obj),$(COBJ_FILES-y))
-OBJS	+= $(addprefix $(obj),$(notdir $(EXT_COBJ_FILES-y)))
-OBJS	+= $(addprefix $(obj),$(notdir $(EXT_SOBJ_FILES-y)))
+OBJS	+= $(addprefix $(obj)/,$(SOBJ_FILES-y))
+OBJS	+= $(addprefix $(obj)/,$(COBJ_FILES-y))
+OBJS	+= $(addprefix $(obj)/,$(notdir $(EXT_COBJ_FILES-y)))
+OBJS	+= $(addprefix $(obj)/,$(notdir $(EXT_SOBJ_FILES-y)))
 
 #########################################################################
 
-$(obj)demo:	$(OBJS)
+$(obj)/demo:	$(OBJS)
 		$(LD) --gc-sections -Ttext $(LOAD_ADDR) -o $@ $^ $(PLATFORM_LIBS)
 
-$(obj)demo.bin: $(obj)demo
+$(obj)/demo.bin: $(obj)/demo
 		$(OBJCOPY) -O binary $< $@ 2>/dev/null
 
 # Rule to build generic library C files
-$(addprefix $(obj),$(notdir $(EXT_COBJ_FILES-y))): $(obj)%.o: $(SRCTREE)/lib/%.c
+$(addprefix $(obj)/,$(notdir $(EXT_COBJ_FILES-y))): $(obj)/%.o: $(SRCTREE)/lib/%.c
 	$(CC) -g $(CFLAGS) -c -o $@ $<
 
 # Rule to build architecture-specific library assembly files
-$(addprefix $(obj),$(notdir $(EXT_SOBJ_FILES-y))): $(obj)%.o: $(SRCTREE)/arch/$(ARCH)/lib/%.S
+$(addprefix $(obj)/,$(notdir $(EXT_SOBJ_FILES-y))): $(obj)/%.o: $(SRCTREE)/arch/$(ARCH)/lib/%.S
 	$(CC) -g $(CFLAGS) -c -o $@ $<

index 1f8d70c..a6819f7 100644
@@ -31,7 +31,7 @@ clean-files  := $(extra-) $(addsuffix .srec,$(extra-)) $(addsuffix .bin,$(extra-
 
 COBJS	:= $(ELF:=.o)
 
-LIB	= $(obj)libstubs.o
+LIB	= $(obj)/libstubs.o
 
 LIBAOBJS-$(CONFIG_PPC) += ppc_longjmp.o ppc_setjmp.o
 LIBAOBJS-$(CONFIG_8xx) += test_burst_lib.o

@@ -39,11 +39,11 @@ LIBAOBJS := $(LIBAOBJS-y)
 
 LIBCOBJS = stubs.o
 
-LIBOBJS	= $(addprefix $(obj),$(LIBAOBJS) $(LIBCOBJS))
+LIBOBJS	= $(addprefix $(obj)/,$(LIBAOBJS) $(LIBCOBJS))
 
 SRCS	:= $(COBJS:.o=.c) $(LIBCOBJS:.o=.c) $(LIBAOBJS:.o=.S)
-OBJS	:= $(addprefix $(obj),$(COBJS))
-ELF	:= $(addprefix $(obj),$(ELF))
+OBJS	:= $(addprefix $(obj)/,$(COBJS))
+ELF	:= $(addprefix $(obj)/,$(ELF))
 
 gcclibdir := $(shell dirname `$(CC) -print-libgcc-file-name`)
 

@@ -67,13 +67,13 @@ $(LIB):	$(LIBOBJS)
 	$(call cmd_link_o_target, $(LIBOBJS))
 
 $(ELF):
-$(obj)%:	$(obj)%.o $(LIB)
+$(obj)/%:	$(obj)/%.o $(LIB)
 		$(LD) $(LDFLAGS) -g -Ttext $(CONFIG_STANDALONE_LOAD_ADDR) \
 			-o $@ -e $(SYM_PREFIX)$(notdir $(<:.o=)) $< $(LIB) \
 			-L$(gcclibdir) -lgcc
 
-$(obj)%.srec:	$(obj)%
+$(obj)/%.srec:	$(obj)/%
 		$(OBJCOPY) -O srec $< $@ 2>/dev/null
 
-$(obj)%.bin:	$(obj)%
+$(obj)/%.bin:	$(obj)/%
 		$(OBJCOPY) -O binary $< $@ 2>/dev/null

index 389b0e3..5682b16 100644
@@ -15,4 +15,4 @@ obj-y += tnc.o tnc_misc.o debug.o crc16.o budget.o
 obj-y += log.o orphan.o recovery.o replay.o
 
 # SEE README.arm-unaligned-accesses
-$(obj)super.o: CFLAGS += $(PLATFORM_NO_UNALIGNED)
+$(obj)/super.o: CFLAGS += $(PLATFORM_NO_UNALIGNED)

index 760340f..43b13d0 100644
@@ -67,4 +67,4 @@ obj-$(CONFIG_BOOTP_RANDOM_DELAY) += rand.o
 obj-$(CONFIG_CMD_LINK_LOCAL) += rand.o
 
 # SEE README.arm-unaligned-accesses
-$(obj)bzlib.o: CFLAGS += $(PLATFORM_NO_UNALIGNED)
+$(obj)/bzlib.o: CFLAGS += $(PLATFORM_NO_UNALIGNED)

index b96c81f..5f516f2 100755
@@ -23,7 +23,7 @@ options=""
 
 if [ \( $# -eq 2 \) -a \( "$1" = "-A" \) ] ; then
 	# Automatic mode
-	line=`awk '($0 !~ /^#/ && $7 ~ /^'"$2"'$/) { print $1, $2, $3, $4, $5, $6, $7, $8 }' boards.cfg`
+	line=`awk '($0 !~ /^#/ && $7 ~ /^'"$2"'$/) { print $1, $2, $3, $4, $5, $6, $7, $8 }' $srctree/boards.cfg`
 	if [ -z "$line" ] ; then
 		echo "make: *** No rule to make target \`$2_config'.  Stop." >&2
 		exit 1

index 3b00d49..041213f 100644
@@ -18,8 +18,8 @@ CFLAGS	+= -DCONFIG_NAND_SPL
 SOBJS	= start.o resetvec.o cache.o
 COBJS	= gpio.o nand_boot.o nand_ecc.o memory.o ndfc.o pll.o
 
-SRCS	:= $(addprefix $(obj),$(SOBJS:.o=.S) $(COBJS:.o=.c))
-OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
+SRCS	:= $(addprefix $(obj)/,$(SOBJS:.o=.S) $(COBJS:.o=.c))
+OBJS	:= $(addprefix $(obj)/,$(SOBJS) $(COBJS))
 __OBJS	:= $(SOBJS) $(COBJS)
 LNDIR	:= $(nandobj)board/$(BOARDDIR)
 

@@ -47,49 +47,41 @@ $(nandobj)u-boot.lds: $(LDSCRIPT)
 # create symbolic links for common files
 
 # from cpu directory
-$(obj)cache.S:
+$(obj)/cache.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/cpu/ppc4xx/cache.S $@
 
-$(obj)gpio.c:
+$(obj)/gpio.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/cpu/ppc4xx/gpio.c $@
 
-$(obj)ndfc.c:
+$(obj)/ndfc.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/drivers/mtd/nand/ndfc.c $@
 
-$(obj)resetvec.S:
+$(obj)/resetvec.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/cpu/ppc4xx/resetvec.S $@
 
-$(obj)start.S:
+$(obj)/start.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/cpu/ppc4xx/start.S $@
 
 # from board directory
-$(obj)memory.c:
+$(obj)/memory.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/board/amcc/acadia/memory.c $@
 
-$(obj)pll.c:
+$(obj)/pll.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/board/amcc/acadia/pll.c $@
 
 # from nand_spl directory
-$(obj)nand_boot.c:
+$(obj)/nand_boot.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/nand_spl/nand_boot.c $@
 
 # from drivers/mtd/nand directory
-$(obj)nand_ecc.c:
+$(obj)/nand_ecc.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/drivers/mtd/nand/nand_ecc.c $@
-
-#########################################################################
-
-$(obj)%.o:	$(obj)%.S
-	$(CC) $(AFLAGS) -c -o $@ $<
-
-$(obj)%.o:	$(obj)%.c
-	$(CC) $(CFLAGS) -c -o $@ $<

index 4063274..92b604e 100644
@@ -18,8 +18,8 @@ CFLAGS	+= -DCONFIG_NAND_SPL
 SOBJS	= start.o init.o resetvec.o
 COBJS	= nand_boot.o nand_ecc.o ndfc.o sdram.o
 
-SRCS	:= $(addprefix $(obj),$(SOBJS:.o=.S) $(COBJS:.o=.c))
-OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
+SRCS	:= $(addprefix $(obj)/,$(SOBJS:.o=.S) $(COBJS:.o=.c))
+OBJS	:= $(addprefix $(obj)/,$(SOBJS) $(COBJS))
 __OBJS	:= $(SOBJS) $(COBJS)
 LNDIR	:= $(nandobj)board/$(BOARDDIR)
 

@@ -41,43 +41,29 @@ $(nandobj)u-boot.lds: $(LDSCRIPT)
 # create symbolic links for common files
 
 # from cpu directory
-$(obj)ndfc.c:
+$(obj)/ndfc.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/drivers/mtd/nand/ndfc.c $@
 
-$(obj)resetvec.S:
+$(obj)/resetvec.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/cpu/ppc4xx/resetvec.S $@
 
-$(obj)start.S:
+$(obj)/start.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/cpu/ppc4xx/start.S $@
 
 # from board directory
-$(obj)init.S:
+$(obj)/init.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/board/amcc/bamboo/init.S $@
 
 # from nand_spl directory
-$(obj)nand_boot.c:
+$(obj)/nand_boot.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/nand_spl/nand_boot.c $@
 
 # from drivers/mtd/nand directory
-$(obj)nand_ecc.c:
+$(obj)/nand_ecc.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/drivers/mtd/nand/nand_ecc.c $@
-
-ifneq ($(OBJTREE), $(SRCTREE))
-$(obj)sdram.c:
-	@rm -f $@
-	ln -s $(SRCTREE)/nand_spl/board/$(BOARDDIR)/sdram.c $@
-endif
-
-#########################################################################
-
-$(obj)%.o:	$(obj)%.S
-	$(CC) $(AFLAGS) -c -o $@ $<
-
-$(obj)%.o:	$(obj)%.c
-	$(CC) $(CFLAGS) -c -o $@ $<

index 13c8b36..9a730e9 100644
@@ -23,8 +23,8 @@ COBJS	+= nand_boot.o
 COBJS	+= nand_ecc.o
 COBJS	+= ndfc.o
 
-SRCS	:= $(addprefix $(obj),$(SOBJS:.o=.S) $(COBJS:.o=.c))
-OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
+SRCS	:= $(addprefix $(obj)/,$(SOBJS:.o=.S) $(COBJS:.o=.c))
+OBJS	:= $(addprefix $(obj)/,$(SOBJS) $(COBJS))
 __OBJS	:= $(SOBJS) $(COBJS)
 LNDIR	:= $(nandobj)board/$(BOARDDIR)
 

@@ -46,43 +46,29 @@ $(nandobj)u-boot.lds: $(LDSCRIPT)
 # create symbolic links for common files
 
 # from cpu directory
-$(obj)ndfc.c:
+$(obj)/ndfc.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/drivers/mtd/nand/ndfc.c $@
 
-$(obj)resetvec.S:
+$(obj)/resetvec.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/cpu/ppc4xx/resetvec.S $@
 
-$(obj)start.S:
+$(obj)/start.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/cpu/ppc4xx/start.S $@
 
 # from board directory
-$(obj)init.S:
+$(obj)/init.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/board/amcc/canyonlands/init.S $@
 
 # from nand_spl directory
-$(obj)nand_boot.c:
+$(obj)/nand_boot.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/nand_spl/nand_boot.c $@
 
 # from drivers/mtd/nand directory
-$(obj)nand_ecc.c:
+$(obj)/nand_ecc.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/drivers/mtd/nand/nand_ecc.c $@
-
-ifneq ($(OBJTREE), $(SRCTREE))
-$(obj)ddr2_fixed.c:
-	@rm -f $@
-	ln -s $(SRCTREE)/nand_spl/board/$(BOARDDIR)/ddr2_fixed.c $@
-endif
-
-#########################################################################
-
-$(obj)%.o:	$(obj)%.S
-	$(CC) $(AFLAGS) -c -o $@ $<
-
-$(obj)%.o:	$(obj)%.c
-	$(CC) $(CFLAGS) -c -o $@ $<

index 9d07147..1c5498c 100644
@@ -18,8 +18,8 @@ CFLAGS	+= -DCONFIG_NAND_SPL
 SOBJS	= start.o resetvec.o cache.o
 COBJS	= 44x_spd_ddr2.o nand_boot.o nand_ecc.o ndfc.o
 
-SRCS	:= $(addprefix $(obj),$(SOBJS:.o=.S) $(COBJS:.o=.c))
-OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
+SRCS	:= $(addprefix $(obj)/,$(SOBJS:.o=.S) $(COBJS:.o=.c))
+OBJS	:= $(addprefix $(obj)/,$(SOBJS) $(COBJS))
 __OBJS	:= $(SOBJS) $(COBJS)
 LNDIR	:= $(nandobj)board/$(BOARDDIR)
 

@@ -41,44 +41,36 @@ $(nandobj)u-boot.lds: $(LDSCRIPT)
 # create symbolic links for common files
 
 # from cpu directory
-$(obj)44x_spd_ddr2.c: $(obj)ecc.h
+$(obj)/44x_spd_ddr2.c: $(obj)/ecc.h
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/cpu/ppc4xx/44x_spd_ddr2.c $@
 
-$(obj)cache.S:
+$(obj)/cache.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/cpu/ppc4xx/cache.S $@
 
-$(obj)ecc.h:
+$(obj)/ecc.h:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/cpu/ppc4xx/ecc.h $@
 
-$(obj)ndfc.c:
+$(obj)/ndfc.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/drivers/mtd/nand/ndfc.c $@
 
-$(obj)resetvec.S:
+$(obj)/resetvec.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/cpu/ppc4xx/resetvec.S $@
 
-$(obj)start.S:
+$(obj)/start.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/cpu/ppc4xx/start.S $@
 
 # from nand_spl directory
-$(obj)nand_boot.c:
+$(obj)/nand_boot.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/nand_spl/nand_boot.c $@
 
 # from drivers/nand directory
-$(obj)nand_ecc.c:
+$(obj)/nand_ecc.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/drivers/mtd/nand/nand_ecc.c $@
-
-#########################################################################
-
-$(obj)%.o:	$(obj)%.S
-	$(CC) $(AFLAGS) -c -o $@ $<
-
-$(obj)%.o:	$(obj)%.c
-	$(CC) $(CFLAGS) -c -o $@ $<

index 111bb0d..62131ab 100644
@@ -18,8 +18,8 @@ CFLAGS	+= -DCONFIG_NAND_SPL
 SOBJS	= start.o init.o resetvec.o
 COBJS	= denali_data_eye.o nand_boot.o nand_ecc.o ndfc.o sdram.o
 
-SRCS	:= $(addprefix $(obj),$(SOBJS:.o=.S) $(COBJS:.o=.c))
-OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
+SRCS	:= $(addprefix $(obj)/,$(SOBJS:.o=.S) $(COBJS:.o=.c))
+OBJS	:= $(addprefix $(obj)/,$(SOBJS) $(COBJS))
 __OBJS	:= $(SOBJS) $(COBJS)
 LNDIR	:= $(nandobj)board/$(BOARDDIR)
 

@@ -41,47 +41,39 @@ $(nandobj)u-boot.lds: $(LDSCRIPT)
 # create symbolic links for common files
 
 # from cpu directory
-$(obj)denali_data_eye.c:
+$(obj)/denali_data_eye.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/cpu/ppc4xx/denali_data_eye.c $@
 
-$(obj)ndfc.c:
+$(obj)/ndfc.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/drivers/mtd/nand/ndfc.c $@
 
-$(obj)resetvec.S:
+$(obj)/resetvec.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/cpu/ppc4xx/resetvec.S $@
 
-$(obj)start.S:
+$(obj)/start.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/cpu/ppc4xx/start.S $@
 
 # from board directory
-$(obj)init.S:
+$(obj)/init.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/board/amcc/sequoia/init.S $@
 
-$(obj)sdram.c:
+$(obj)/sdram.c:
 	@rm -f $@
-	@rm -f $(obj)sdram.h
+	@rm -f $(obj)/sdram.h
 	ln -s $(SRCTREE)/board/amcc/sequoia/sdram.c $@
-	ln -s $(SRCTREE)/board/amcc/sequoia/sdram.h $(obj)sdram.h
+	ln -s $(SRCTREE)/board/amcc/sequoia/sdram.h $(obj)/sdram.h
 
 # from nand_spl directory
-$(obj)nand_boot.c:
+$(obj)/nand_boot.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/nand_spl/nand_boot.c $@
 
 # from drivers/mtd/nand directory
-$(obj)nand_ecc.c:
+$(obj)/nand_ecc.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/drivers/mtd/nand/nand_ecc.c $@
-
-#########################################################################
-
-$(obj)%.o:	$(obj)%.S
-	$(CC) $(AFLAGS) -c -o $@ $<
-
-$(obj)%.o:	$(obj)%.c
-	$(CC) $(CFLAGS) -c -o $@ $<

index 7813823..a2054ee 100644
@@ -20,8 +20,8 @@ SOBJS	= start.o ticks.o
 COBJS	= nand_boot_fsl_elbc.o $(BOARD).o sdram.o ns16550.o spl_minimal.o \
 	  time.o cache.o
 
-SRCS	:= $(addprefix $(obj),$(SOBJS:.o=.S) $(COBJS:.o=.c))
-OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
+SRCS	:= $(addprefix $(obj)/,$(SOBJS:.o=.S) $(COBJS:.o=.c))
+OBJS	:= $(addprefix $(obj)/,$(SOBJS) $(COBJS))
 __OBJS	:= $(SOBJS) $(COBJS)
 LNDIR	:= $(nandobj)board/$(BOARDDIR)
 

@@ -42,37 +42,29 @@ $(nandobj)u-boot.lds: $(LDSCRIPT)
 
 # create symbolic links for common files
 
-$(obj)start.S:
+$(obj)/start.S:
 	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc83xx/start.S $@
 
-$(obj)nand_boot_fsl_elbc.c:
+$(obj)/nand_boot_fsl_elbc.c:
 	ln -sf $(SRCTREE)/nand_spl/nand_boot_fsl_elbc.c $@
 
-$(obj)sdram.c:
+$(obj)/sdram.c:
 	ln -sf $(SRCTREE)/board/$(BOARDDIR)/sdram.c $@
 
-$(obj)$(BOARD).c:
+$(obj)/$(BOARD).c:
 	ln -sf $(SRCTREE)/board/$(BOARDDIR)/$(BOARD).c $@
 
-$(obj)ns16550.c:
+$(obj)/ns16550.c:
 	ln -sf $(SRCTREE)/drivers/serial/ns16550.c $@
 
-$(obj)spl_minimal.c:
+$(obj)/spl_minimal.c:
 	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc83xx/spl_minimal.c $@
 
-$(obj)cache.c:
+$(obj)/cache.c:
 	ln -sf $(SRCTREE)/arch/powerpc/lib/cache.c $@
 
-$(obj)time.c:
+$(obj)/time.c:
 	ln -sf $(SRCTREE)/arch/powerpc/lib/time.c $@
 
-$(obj)ticks.S:
+$(obj)/ticks.S:
 	ln -sf $(SRCTREE)/arch/powerpc/lib/ticks.S $@
-
-#########################################################################
-
-$(obj)%.o:	$(obj)%.S
-	$(CC) $(AFLAGS) -c -o $@ $<
-
-$(obj)%.o:	$(obj)%.c
-	$(CC) $(CFLAGS) -c -o $@ $<

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index 5e83abc..ca45ecd 100644
@@ -19,8 +19,8 @@ SOBJS	= start.o ticks.o
 COBJS	= nand_boot_fsl_elbc.o $(BOARD).o sdram.o ns16550.o spl_minimal.o \
 	  time.o cache.o
 
-SRCS	:= $(addprefix $(obj),$(SOBJS:.o=.S) $(COBJS:.o=.c))
-OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
+SRCS	:= $(addprefix $(obj)/,$(SOBJS:.o=.S) $(COBJS:.o=.c))
+OBJS	:= $(addprefix $(obj)/,$(SOBJS) $(COBJS))
 __OBJS	:= $(SOBJS) $(COBJS)
 LNDIR	:= $(nandobj)board/$(BOARDDIR)
 

@@ -41,46 +41,38 @@ $(nandobj)u-boot.lds: $(LDSCRIPT)
 
 # create symbolic links for common files
 
-$(obj)start.S:
+$(obj)/start.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/cpu/mpc83xx/start.S $@
 
-$(obj)nand_boot_fsl_elbc.c:
+$(obj)/nand_boot_fsl_elbc.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/nand_spl/nand_boot_fsl_elbc.c $@
 
-$(obj)sdram.c:
+$(obj)/sdram.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/board/$(BOARDDIR)/sdram.c $@
 
-$(obj)$(BOARD).c:
+$(obj)/$(BOARD).c:
 	@rm -f $@
 	ln -s $(SRCTREE)/board/$(BOARDDIR)/$(BOARD).c $@
 
-$(obj)ns16550.c:
+$(obj)/ns16550.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/drivers/serial/ns16550.c $@
 
-$(obj)spl_minimal.c:
+$(obj)/spl_minimal.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/cpu/mpc83xx/spl_minimal.c $@
 
-$(obj)cache.c:
+$(obj)/cache.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/lib/cache.c $@
 
-$(obj)time.c:
+$(obj)/time.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/lib/time.c $@
 
-$(obj)ticks.S:
+$(obj)/ticks.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/lib/ticks.S $@
-
-#########################################################################
-
-$(obj)%.o:	$(obj)%.S
-	$(CC) $(AFLAGS) -c -o $@ $<
-
-$(obj)%.o:	$(obj)%.c
-	$(CC) $(CFLAGS) -c -o $@ $<

index a7aa5bc..c720a26 100644
@@ -18,7 +18,7 @@ obj-y	+= darwin-ldouble.o
 CFLAGS := $(shell echo $(CFLAGS) | sed s/-msoft-float//)
 CFLAGS += -mhard-float -fkeep-inline-functions
 
-$(addprefix $(obj),$(obj-y)): $(obj)%.o:	%.c
+$(addprefix $(obj)/,$(obj-y)): $(obj)/%.o: $(src)/%.c
 	$(CC)  $(ALL_CFLAGS) -o [email protected] $< -c
 	$(OBJCOPY) -R .gnu.attributes [email protected] $@
 	rm -f [email protected]

index b36de4d..e4fd337 100644
@@ -6,41 +6,42 @@
 #
 #########################################################################
 
-_depend:	$(obj).depend
+_depend:	$(obj)/.depend
 
 # Split the source files into two camps: those in the current directory, and
 # those somewhere else. For the first camp we want to support CPPFLAGS_<fname>
 # and for the second we don't / can't.
-PWD_SRCS := $(filter $(notdir $(SRCS)),$(SRCS))
-OTHER_SRCS := $(filter-out $(notdir $(SRCS)),$(SRCS))
+PWD_SRCS := $(foreach f,$(SRCS), $(if \
+	$(filter $(if $(KBUILD_SRC),$(srctree)/)$(src)/$(notdir $f),$f), $f))
+OTHER_SRCS := $(filter-out $(PWD_SRCS),$(SRCS))
 
 # This is a list of dependency files to generate
-DEPS := $(basename $(patsubst %,$(obj).depend.%,$(PWD_SRCS)))
+DEPS := $(basename $(addprefix $(obj)/.depend., $(notdir $(PWD_SRCS))))
 
 # Join all the dependencies into a single file, in three parts
 #	1 .Concatenate all the generated depend files together
 #	2. Add in the deps from OTHER_SRCS which we couldn't process
 #	3. Add in the HOSTSRCS
-$(obj).depend:	$(src)Makefile $(TOPDIR)/config.mk $(DEPS) $(OTHER_SRCS) \
+$(obj)/.depend:	$(TOPDIR)/config.mk $(DEPS) $(OTHER_SRCS) \
 		$(HOSTSRCS)
 	cat /dev/null $(DEPS) >$@
 	@for f in $(OTHER_SRCS); do \
 		g=`basename $$f | sed -e 's/\(.*\)\.[[:alnum:]_]/\1.o/'`; \
-		$(CC) -M $(CPPFLAGS) -MQ $(obj)$$g $$f >> $@ ; \
+		$(CC) -M $(CPPFLAGS) -MQ $(obj)/$$g $$f >> $@ ; \
 	done
 	@for f in $(HOSTSRCS); do \
 		g=`basename $$f | sed -e 's/\(.*\)\.[[:alnum:]_]/\1.o/'`; \
-		$(HOSTCC) -M $(HOSTCPPFLAGS) -MQ $(obj)$$g $$f >> $@ ; \
+		$(HOSTCC) -M $(HOSTCPPFLAGS) -MQ $(obj)/$$g $$f >> $@ ; \
 	done
 
 MAKE_DEPEND = $(CC) -M $(CPPFLAGS) $(EXTRA_CPPFLAGS_DEP) \
 		-MQ $(addsuffix .o,$(obj)$(basename $<)) $< >$@
 
 
-$(obj).depend.%:	%.c
+$(obj)/.depend.%:	$(src)/%.c
 	$(MAKE_DEPEND)
 
-$(obj).depend.%:	%.S
+$(obj)/.depend.%:	$(src)/%.S
 	$(MAKE_DEPEND)
 
 #########################################################################

index ca5fd56..6113c13 100644
@@ -165,9 +165,7 @@ ar-option = $(call try-run, $(AR) rc$(1) "$$TMP",$(1),$(2))
 # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.build obj=
 # Usage:
 # $(Q)$(MAKE) $(build)=dir
-#build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build obj
-# temporary
-build := -f $(srctree)/scripts/Makefile.build -C
+build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build obj
 
 ###
 # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.modbuiltin obj=

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index 4b57846..53fe930 100644
@@ -21,11 +21,11 @@ host-objdirs += $(foreach f,$(host-cmulti),                  \
 
 host-objdirs := $(strip $(sort $(filter-out ./,$(host-objdirs))))
 
-__hostprogs     := $(addprefix $(obj),$(__hostprogs))
-host-csingle	:= $(addprefix $(obj),$(host-csingle))
-host-cmulti	:= $(addprefix $(obj),$(host-cmulti))
-host-cobjs	:= $(addprefix $(obj),$(host-cobjs))
-host-objdirs    := $(addprefix $(obj),$(host-objdirs))
+__hostprogs     := $(addprefix $(obj)/,$(__hostprogs))
+host-csingle	:= $(addprefix $(obj)/,$(host-csingle))
+host-cmulti	:= $(addprefix $(obj)/,$(host-cmulti))
+host-cobjs	:= $(addprefix $(obj)/,$(host-cobjs))
+host-objdirs    := $(addprefix $(obj)/,$(host-objdirs))
 
 obj-dirs += $(host-objdirs)
 

@@ -49,13 +49,13 @@ hostc_flags    = $(__hostc_flags)
 #####
 # Compile programs on the host
 
-$(host-csingle): $(obj)%: %.c
+$(host-csingle): $(obj)/%: $(src)/%.c
 	$(HOSTCC) $(HOSTCFLAGS) $(HOST_EXTRACFLAGS) $(HOSTLDFLAGS) $(HOSTCFLAGS_$(@F)) $(HOSTCFLAGS_$(BCURDIR)) -o $@ $<
 
-$(host-cmulti): $(obj)%: $(host-cobjs)
-	$(HOSTCC) $(HOSTLDFLAGS) -o $@ $(addprefix $(obj),$($(@F)-objs)) $(HOSTLOADLIBES_$(@F))
+$(host-cmulti): $(obj)/%: $(host-cobjs)
+	$(HOSTCC) $(HOSTLDFLAGS) -o $@ $(addprefix $(obj)/,$($(@F)-objs)) $(HOSTLOADLIBES_$(@F))
 
-$(host-cobjs): $(obj)%.o: %.c
+$(host-cobjs): $(obj)/%.o: $(src)/%.c
 	$(HOSTCC) $(HOSTCFLAGS) $(HOST_EXTRACFLAGS) $(HOSTCFLAGS_$(@F)) $(HOSTCFLAGS_$(BCURDIR)) -o $@ $< -c
 
 targets += $(host-csingle)  $(host-cmulti) $(host-cobjs)

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index 21341b7..9b19dcb 100644
@@ -142,8 +142,8 @@ HOSTCFLAGS_sha1.o := -pedantic
 always := $(hostprogs-y)
 
 # Generated LCD/video logo
-LOGO_H = $(OBJTREE)/include/bmp_logo.h
-LOGO_DATA_H = $(OBJTREE)/include/bmp_logo_data.h
+LOGO_H = $(objtree)/include/bmp_logo.h
+LOGO_DATA_H = $(objtree)/include/bmp_logo_data.h
 LOGO-$(CONFIG_LCD_LOGO) += $(LOGO_H)
 LOGO-$(CONFIG_LCD_LOGO) += $(LOGO_DATA_H)
 LOGO-$(CONFIG_VIDEO_LOGO) += $(LOGO_H)

@@ -151,14 +151,14 @@ LOGO-$(CONFIG_VIDEO_LOGO) += $(LOGO_DATA_H)
 
 # Generic logo
 ifeq ($(LOGO_BMP),)
-LOGO_BMP= logos/denx.bmp
+LOGO_BMP= $(srctree)/$(src)/logos/denx.bmp
 
 # Use board logo and fallback to vendor
 ifneq ($(wildcard logos/$(BOARD).bmp),)
-LOGO_BMP= logos/$(BOARD).bmp
+LOGO_BMP= $(srctree)/$(src)/logos/$(BOARD).bmp
 else
 ifneq ($(wildcard logos/$(VENDOR).bmp),)
-LOGO_BMP= logos/$(VENDOR).bmp
+LOGO_BMP= $(srctree)/$(src)/logos/$(VENDOR).bmp
 endif
 endif
 

@@ -187,8 +187,8 @@ all:	$(LOGO-y)
 
 subdir-y := kernel-doc
 
-$(LOGO_H):	$(obj)bmp_logo $(LOGO_BMP)
-	$(obj)./bmp_logo --gen-info $(LOGO_BMP) > $@
+$(LOGO_H):	$(obj)/bmp_logo $(LOGO_BMP)
+	$(obj)/bmp_logo --gen-info $(LOGO_BMP) > $@
 
-$(LOGO_DATA_H):	$(obj)bmp_logo $(LOGO_BMP)
-	$(obj)./bmp_logo --gen-data $(LOGO_BMP) > $@
+$(LOGO_DATA_H):	$(obj)/bmp_logo $(LOGO_BMP)
+	$(obj)/bmp_logo --gen-data $(LOGO_BMP) > $@

index 886b509..77e2319 100644
@@ -17,4 +17,5 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 
-obj- :=
+# necessary to create built-in.o
+obj- := __dummy__.o

index 518d6d1..413eba1 100644
@@ -17,4 +17,5 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 
-obj- :=
+# necessary to create built-in.o
+obj- := __dummy__.o

index bb3550e..206d304 100644
@@ -9,4 +9,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
+# necessary to create built-in.o
+obj- := __dummy__.o
+
 extra-y	= start.o

index 25f063d..f6a0879 100644
@@ -13,7 +13,10 @@ MINIMAL=y
 endif
 endif
 
-ifndef MINIMAL
+ifdef MINIMAL
+# necessary to create built-in.o
+obj- := __dummy__.o
+else
 obj-$(CONFIG_FSL_CADMUS)	+= cadmus.o
 obj-$(CONFIG_FSL_VIA)		+= cds_via.o
 obj-$(CONFIG_FMAN_ENET)	+= fman.o

index 37acba7..1add9fe 100644
@@ -5,6 +5,9 @@
 #
 
 ifdef CONFIG_SPL_BUILD
+# necessary to create built-in.o
+obj- := __dummy__.o
+
 hostprogs-y := tools/mkorigenspl
 always := $(hostprogs-y)
 

index 9e37b4e..de0da16 100644
@@ -5,6 +5,9 @@
 #
 
 ifdef CONFIG_SPL_BUILD
+# necessary to create built-in.o
+obj- := __dummy__.o
+
 hostprogs-y := tools/mksmdkv310spl
 always := $(hostprogs-y)
 else

index 08dc09f..b0ba320 100644
@@ -5,7 +5,10 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-ifndef CONFIG_SPL_BUILD
+ifdef CONFIG_SPL_BUILD
+# necessary to create built-in.o
+obj- := __dummy__.o
+else
 obj-y	:= spr_misc.o
 obj-y	+= spr_lowlevel_init.o
 endif

index f9053fe..18d3dd2 100644
@@ -5,6 +5,9 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-ifndef CONFIG_SPL_BUILD
+ifdef CONFIG_SPL_BUILD
+# necessary to create built-in.o
+obj- := __dummy__.o
+else
 obj-y	:= fpga.o x600.o
 endif

index 6113c13..30a5551 100644
@@ -165,7 +165,7 @@ ar-option = $(call try-run, $(AR) rc$(1) "$$TMP",$(1),$(2))
 # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.build obj=
 # Usage:
 # $(Q)$(MAKE) $(build)=dir
-build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build obj
+build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build.tmp obj
 
 ###
 # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.modbuiltin obj=

similarity index 100%
rename from scripts/Makefile.build
rename to scripts/Makefile.build.tmp

new file mode 100644
index 0000000..d5d859c
@@ -0,0 +1,479 @@
+# ==========================================================================
+# Building
+# ==========================================================================
+
+src := $(obj)
+
+PHONY := __build
+__build:
+
+# Init all relevant variables used in kbuild files so
+# 1) they have correct type
+# 2) they do not inherit any value from the environment
+obj-y :=
+obj-m :=
+lib-y :=
+lib-m :=
+always :=
+targets :=
+subdir-y :=
+subdir-m :=
+EXTRA_AFLAGS   :=
+EXTRA_CFLAGS   :=
+EXTRA_CPPFLAGS :=
+EXTRA_LDFLAGS  :=
+asflags-y  :=
+ccflags-y  :=
+cppflags-y :=
+ldflags-y  :=
+
+subdir-asflags-y :=
+subdir-ccflags-y :=
+
+# Read auto.conf if it exists, otherwise ignore
+-include include/config/auto.conf
+
+include scripts/Kbuild.include
+
+# For backward compatibility check that these variables do not change
+save-cflags := $(CFLAGS)
+
+# The filename Kbuild has precedence over Makefile
+kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))
+kbuild-file := $(if $(wildcard $(kbuild-dir)/Kbuild),$(kbuild-dir)/Kbuild,$(kbuild-dir)/Makefile)
+include $(kbuild-file)
+
+# If the save-* variables changed error out
+ifeq ($(KBUILD_NOPEDANTIC),)
+        ifneq ("$(save-cflags)","$(CFLAGS)")
+                $(error CFLAGS was changed in "$(kbuild-file)". Fix it to use ccflags-y)
+        endif
+endif
+
+#
+# make W=... settings
+#
+# W=1 - warnings that may be relevant and does not occur too often
+# W=2 - warnings that occur quite often but may still be relevant
+# W=3 - the more obscure warnings, can most likely be ignored
+#
+# $(call cc-option, -W...) handles gcc -W.. options which
+# are not supported by all versions of the compiler
+ifdef KBUILD_ENABLE_EXTRA_GCC_CHECKS
+warning-  := $(empty)
+
+warning-1 := -Wextra -Wunused -Wno-unused-parameter
+warning-1 += -Wmissing-declarations
+warning-1 += -Wmissing-format-attribute
+warning-1 += -Wmissing-prototypes
+warning-1 += -Wold-style-definition
+warning-1 += $(call cc-option, -Wmissing-include-dirs)
+warning-1 += $(call cc-option, -Wunused-but-set-variable)
+warning-1 += $(call cc-disable-warning, missing-field-initializers)
+
+warning-2 := -Waggregate-return
+warning-2 += -Wcast-align
+warning-2 += -Wdisabled-optimization
+warning-2 += -Wnested-externs
+warning-2 += -Wshadow
+warning-2 += $(call cc-option, -Wlogical-op)
+warning-2 += $(call cc-option, -Wmissing-field-initializers)
+
+warning-3 := -Wbad-function-cast
+warning-3 += -Wcast-qual
+warning-3 += -Wconversion
+warning-3 += -Wpacked
+warning-3 += -Wpadded
+warning-3 += -Wpointer-arith
+warning-3 += -Wredundant-decls
+warning-3 += -Wswitch-default
+warning-3 += $(call cc-option, -Wpacked-bitfield-compat)
+warning-3 += $(call cc-option, -Wvla)
+
+warning := $(warning-$(findstring 1, $(KBUILD_ENABLE_EXTRA_GCC_CHECKS)))
+warning += $(warning-$(findstring 2, $(KBUILD_ENABLE_EXTRA_GCC_CHECKS)))
+warning += $(warning-$(findstring 3, $(KBUILD_ENABLE_EXTRA_GCC_CHECKS)))
+
+ifeq ("$(strip $(warning))","")
+        $(error W=$(KBUILD_ENABLE_EXTRA_GCC_CHECKS) is unknown)
+endif
+
+KBUILD_CFLAGS += $(warning)
+endif
+
+include scripts/Makefile.lib
+
+ifdef host-progs
+ifneq ($(hostprogs-y),$(host-progs))
+$(warning kbuild: $(obj)/Makefile - Usage of host-progs is deprecated. Please replace with hostprogs-y!)
+hostprogs-y += $(host-progs)
+endif
+endif
+
+# Do not include host rules unless needed
+ifneq ($(hostprogs-y)$(hostprogs-m),)
+include scripts/Makefile.host
+endif
+
+ifneq ($(KBUILD_SRC),)
+# Create output directory if not already present
+_dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj))
+
+# Create directories for object files if directory does not exist
+# Needed when obj-y := dir/file.o syntax is used
+_dummy := $(foreach d,$(obj-dirs), $(shell [ -d $(d) ] || mkdir -p $(d)))
+endif
+
+ifndef obj
+$(warning kbuild: Makefile.build is included improperly)
+endif
+
+# ===========================================================================
+
+ifneq ($(strip $(lib-y) $(lib-m) $(lib-n) $(lib-)),)
+lib-target := $(obj)/lib.a
+endif
+
+ifneq ($(strip $(obj-y) $(obj-m) $(obj-n) $(obj-) $(subdir-m) $(lib-target)),)
+builtin-target := $(obj)/built-in.o
+endif
+
+modorder-target := $(obj)/modules.order
+
+# We keep a list of all modules in $(MODVERDIR)
+
+__build: $(if $(KBUILD_BUILTIN),$(builtin-target) $(lib-target) $(extra-y)) \
+	 $(if $(KBUILD_MODULES),$(obj-m) $(modorder-target)) \
+	 $(subdir-ym) $(always)
+	@:
+
+# Linus' kernel sanity checking tool
+ifneq ($(KBUILD_CHECKSRC),0)
+  ifeq ($(KBUILD_CHECKSRC),2)
+    quiet_cmd_force_checksrc = CHECK   $<
+          cmd_force_checksrc = $(CHECK) $(CHECKFLAGS) $(c_flags) $< ;
+  else
+      quiet_cmd_checksrc     = CHECK   $<
+            cmd_checksrc     = $(CHECK) $(CHECKFLAGS) $(c_flags) $< ;
+  endif
+endif
+
+# Do section mismatch analysis for each module/built-in.o
+ifdef CONFIG_DEBUG_SECTION_MISMATCH
+  cmd_secanalysis = ; scripts/mod/modpost $@
+endif
+
+# Compile C sources (.c)
+# ---------------------------------------------------------------------------
+
+# Default is built-in, unless we know otherwise
+modkern_cflags =                                          \
+	$(if $(part-of-module),                           \
+		$(KBUILD_CFLAGS_MODULE) $(CFLAGS_MODULE), \
+		$(KBUILD_CFLAGS_KERNEL) $(CFLAGS_KERNEL))
+quiet_modtag := $(empty)   $(empty)
+
+$(real-objs-m)        : part-of-module := y
+$(real-objs-m:.o=.i)  : part-of-module := y
+$(real-objs-m:.o=.s)  : part-of-module := y
+$(real-objs-m:.o=.lst): part-of-module := y
+
+$(real-objs-m)        : quiet_modtag := [M]
+$(real-objs-m:.o=.i)  : quiet_modtag := [M]
+$(real-objs-m:.o=.s)  : quiet_modtag := [M]
+$(real-objs-m:.o=.lst): quiet_modtag := [M]
+
+$(obj-m)              : quiet_modtag := [M]
+
+# Default for not multi-part modules
+modname = $(basetarget)
+
+$(multi-objs-m)         : modname = $(modname-multi)
+$(multi-objs-m:.o=.i)   : modname = $(modname-multi)
+$(multi-objs-m:.o=.s)   : modname = $(modname-multi)
+$(multi-objs-m:.o=.lst) : modname = $(modname-multi)
+$(multi-objs-y)         : modname = $(modname-multi)
+$(multi-objs-y:.o=.i)   : modname = $(modname-multi)
+$(multi-objs-y:.o=.s)   : modname = $(modname-multi)
+$(multi-objs-y:.o=.lst) : modname = $(modname-multi)
+
+quiet_cmd_cc_s_c = CC $(quiet_modtag)  $@
+cmd_cc_s_c       = $(CC) $(c_flags) -fverbose-asm -S -o $@ $<
+
+$(obj)/%.s: $(src)/%.c FORCE
+	$(call if_changed_dep,cc_s_c)
+
+quiet_cmd_cc_i_c = CPP $(quiet_modtag) $@
+cmd_cc_i_c       = $(CPP) $(c_flags)   -o $@ $<
+
+$(obj)/%.i: $(src)/%.c FORCE
+	$(call if_changed_dep,cc_i_c)
+
+cmd_gensymtypes =                                                           \
+    $(CPP) -D__GENKSYMS__ $(c_flags) $< |                                   \
+    $(GENKSYMS) $(if $(1), -T $(2))                                         \
+     $(patsubst y,-s _,$(CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX))             \
+     $(if $(KBUILD_PRESERVE),-p)                                            \
+     -r $(firstword $(wildcard $(2:.symtypes=.symref) /dev/null))
+
+quiet_cmd_cc_symtypes_c = SYM $(quiet_modtag) $@
+cmd_cc_symtypes_c =                                                         \
+    set -e;                                                                 \
+    $(call cmd_gensymtypes,true,$@) >/dev/null;                             \
+    test -s $@ || rm -f $@
+
+$(obj)/%.symtypes : $(src)/%.c FORCE
+	$(call cmd,cc_symtypes_c)
+
+# C (.c) files
+# The C file is compiled and updated dependency information is generated.
+# (See cmd_cc_o_c + relevant part of rule_cc_o_c)
+
+quiet_cmd_cc_o_c = CC $(quiet_modtag)  $@
+
+ifndef CONFIG_MODVERSIONS
+cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
+
+else
+# When module versioning is enabled the following steps are executed:
+# o compile a .tmp_<file>.o from <file>.c
+# o if .tmp_<file>.o doesn't contain a __ksymtab version, i.e. does
+#   not export symbols, we just rename .tmp_<file>.o to <file>.o and
+#   are done.
+# o otherwise, we calculate symbol versions using the good old
+#   genksyms on the preprocessed source and postprocess them in a way
+#   that they are usable as a linker script
+# o generate <file>.o from .tmp_<file>.o using the linker to
+#   replace the unresolved symbols __crc_exported_symbol with
+#   the actual value of the checksum generated by genksyms
+
+cmd_cc_o_c = $(CC) $(c_flags) -c -o $(@D)/.tmp_$(@F) $<
+cmd_modversions =								\
+	if $(OBJDUMP) -h $(@D)/.tmp_$(@F) | grep -q __ksymtab; then		\
+		$(call cmd_gensymtypes,$(KBUILD_SYMTYPES),$(@:.o=.symtypes))	\
+		    > $(@D)/.tmp_$(@F:.o=.ver);					\
+										\
+		$(LD) $(LDFLAGS) -r -o $@ $(@D)/.tmp_$(@F) 			\
+			-T $(@D)/.tmp_$(@F:.o=.ver);				\
+		rm -f $(@D)/.tmp_$(@F) $(@D)/.tmp_$(@F:.o=.ver);		\
+	else									\
+		mv -f $(@D)/.tmp_$(@F) $@;					\
+	fi;
+endif
+
+ifdef CONFIG_FTRACE_MCOUNT_RECORD
+ifdef BUILD_C_RECORDMCOUNT
+ifeq ("$(origin RECORDMCOUNT_WARN)", "command line")
+  RECORDMCOUNT_FLAGS = -w
+endif
+# Due to recursion, we must skip empty.o.
+# The empty.o file is created in the make process in order to determine
+#  the target endianness and word size. It is made before all other C
+#  files, including recordmcount.
+sub_cmd_record_mcount =					\
+	if [ $(@) != "scripts/mod/empty.o" ]; then	\
+		$(objtree)/scripts/recordmcount $(RECORDMCOUNT_FLAGS) "$(@)";	\
+	fi;
+recordmcount_source := $(srctree)/scripts/recordmcount.c \
+		    $(srctree)/scripts/recordmcount.h
+else
+sub_cmd_record_mcount = set -e ; perl $(srctree)/scripts/recordmcount.pl "$(ARCH)" \
+	"$(if $(CONFIG_CPU_BIG_ENDIAN),big,little)" \
+	"$(if $(CONFIG_64BIT),64,32)" \
+	"$(OBJDUMP)" "$(OBJCOPY)" "$(CC) $(KBUILD_CFLAGS)" \
+	"$(LD)" "$(NM)" "$(RM)" "$(MV)" \
+	"$(if $(part-of-module),1,0)" "$(@)";
+recordmcount_source := $(srctree)/scripts/recordmcount.pl
+endif
+cmd_record_mcount = 						\
+	if [ "$(findstring -pg,$(_c_flags))" = "-pg" ]; then	\
+		$(sub_cmd_record_mcount)			\
+	fi;
+endif
+
+define rule_cc_o_c
+	$(call echo-cmd,checksrc) $(cmd_checksrc)			  \
+	$(call echo-cmd,cc_o_c) $(cmd_cc_o_c);				  \
+	$(cmd_modversions)						  \
+	$(call echo-cmd,record_mcount)					  \
+	$(cmd_record_mcount)						  \
+	scripts/basic/fixdep $(depfile) $@ '$(call make-cmd,cc_o_c)' >    \
+	                                              $(dot-target).tmp;  \
+	rm -f $(depfile);						  \
+	mv -f $(dot-target).tmp $(dot-target).cmd
+endef
+
+# Built-in and composite module parts
+$(obj)/%.o: $(src)/%.c $(recordmcount_source) FORCE
+	$(call cmd,force_checksrc)
+	$(call if_changed_rule,cc_o_c)
+
+# Single-part modules are special since we need to mark them in $(MODVERDIR)
+
+$(single-used-m): $(obj)/%.o: $(src)/%.c $(recordmcount_source) FORCE
+	$(call cmd,force_checksrc)
+	$(call if_changed_rule,cc_o_c)
+	@{ echo $(@:.o=.ko); echo $@; } > $(MODVERDIR)/$(@F:.o=.mod)
+
+quiet_cmd_cc_lst_c = MKLST   $@
+      cmd_cc_lst_c = $(CC) $(c_flags) -g -c -o $*.o $< && \
+		     $(CONFIG_SHELL) $(srctree)/scripts/makelst $*.o \
+				     System.map $(OBJDUMP) > $@
+
+$(obj)/%.lst: $(src)/%.c FORCE
+	$(call if_changed_dep,cc_lst_c)
+
+# Compile assembler sources (.S)
+# ---------------------------------------------------------------------------
+
+modkern_aflags := $(KBUILD_AFLAGS_KERNEL) $(AFLAGS_KERNEL)
+
+$(real-objs-m)      : modkern_aflags := $(KBUILD_AFLAGS_MODULE) $(AFLAGS_MODULE)
+$(real-objs-m:.o=.s): modkern_aflags := $(KBUILD_AFLAGS_MODULE) $(AFLAGS_MODULE)
+
+quiet_cmd_as_s_S = CPP $(quiet_modtag) $@
+cmd_as_s_S       = $(CPP) $(a_flags)   -o $@ $< 
+
+$(obj)/%.s: $(src)/%.S FORCE
+	$(call if_changed_dep,as_s_S)
+
+quiet_cmd_as_o_S = AS $(quiet_modtag)  $@
+cmd_as_o_S       = $(CC) $(a_flags) -c -o $@ $<
+
+$(obj)/%.o: $(src)/%.S FORCE
+	$(call if_changed_dep,as_o_S)
+
+targets += $(real-objs-y) $(real-objs-m) $(lib-y)
+targets += $(extra-y) $(MAKECMDGOALS) $(always)
+
+# Linker scripts preprocessor (.lds.S -> .lds)
+# ---------------------------------------------------------------------------
+quiet_cmd_cpp_lds_S = LDS     $@
+      cmd_cpp_lds_S = $(CPP) $(cpp_flags) -P -C -U$(ARCH) \
+	                     -D__ASSEMBLY__ -DLINKER_SCRIPT -o $@ $<
+
+$(obj)/%.lds: $(src)/%.lds.S FORCE
+	$(call if_changed_dep,cpp_lds_S)
+
+# ASN.1 grammar
+# ---------------------------------------------------------------------------
+quiet_cmd_asn1_compiler = ASN.1   $@
+      cmd_asn1_compiler = $(objtree)/scripts/asn1_compiler $< \
+				$(subst .h,.c,$@) $(subst .c,.h,$@)
+
+.PRECIOUS: $(objtree)/$(obj)/%-asn1.c $(objtree)/$(obj)/%-asn1.h
+
+$(obj)/%-asn1.c $(obj)/%-asn1.h: $(src)/%.asn1 $(objtree)/scripts/asn1_compiler
+	$(call cmd,asn1_compiler)
+
+# Build the compiled-in targets
+# ---------------------------------------------------------------------------
+
+# To build objects in subdirs, we need to descend into the directories
+$(sort $(subdir-obj-y)): $(subdir-ym) ;
+
+#
+# Rule to compile a set of .o files into one .o file
+#
+ifdef builtin-target
+quiet_cmd_link_o_target = LD      $@
+# If the list of objects to link is empty, just create an empty built-in.o
+cmd_link_o_target = $(if $(strip $(obj-y)),\
+		      $(LD) $(ld_flags) -r -o $@ $(filter $(obj-y), $^) \
+		      $(cmd_secanalysis),\
+		      rm -f $@; $(AR) rcs$(KBUILD_ARFLAGS) $@)
+
+$(builtin-target): $(obj-y) FORCE
+	$(call if_changed,link_o_target)
+
+targets += $(builtin-target)
+endif # builtin-target
+
+#
+# Rule to create modules.order file
+#
+# Create commands to either record .ko file or cat modules.order from
+# a subdirectory
+modorder-cmds =						\
+	$(foreach m, $(modorder),			\
+		$(if $(filter %/modules.order, $m),	\
+			cat $m;, echo kernel/$m;))
+
+$(modorder-target): $(subdir-ym) FORCE
+	$(Q)(cat /dev/null; $(modorder-cmds)) > $@
+
+#
+# Rule to compile a set of .o files into one .a file
+#
+ifdef lib-target
+quiet_cmd_link_l_target = AR      $@
+cmd_link_l_target = rm -f $@; $(AR) rcs$(KBUILD_ARFLAGS) $@ $(lib-y)
+
+$(lib-target): $(lib-y) FORCE
+	$(call if_changed,link_l_target)
+
+targets += $(lib-target)
+endif
+
+#
+# Rule to link composite objects
+#
+#  Composite objects are specified in kbuild makefile as follows:
+#    <composite-object>-objs := <list of .o files>
+#  or
+#    <composite-object>-y    := <list of .o files>
+link_multi_deps =                     \
+$(filter $(addprefix $(obj)/,         \
+$($(subst $(obj)/,,$(@:.o=-objs)))    \
+$($(subst $(obj)/,,$(@:.o=-y)))), $^)
+ 
+quiet_cmd_link_multi-y = LD      $@
+cmd_link_multi-y = $(LD) $(ld_flags) -r -o $@ $(link_multi_deps) $(cmd_secanalysis)
+
+quiet_cmd_link_multi-m = LD [M]  $@
+cmd_link_multi-m = $(cmd_link_multi-y)
+
+# We would rather have a list of rules like
+# 	foo.o: $(foo-objs)
+# but that's not so easy, so we rather make all composite objects depend
+# on the set of all their parts
+$(multi-used-y) : %.o: $(multi-objs-y) FORCE
+	$(call if_changed,link_multi-y)
+
+$(multi-used-m) : %.o: $(multi-objs-m) FORCE
+	$(call if_changed,link_multi-m)
+	@{ echo $(@:.o=.ko); echo $(link_multi_deps); } > $(MODVERDIR)/$(@F:.o=.mod)
+
+targets += $(multi-used-y) $(multi-used-m)
+
+
+# Descending
+# ---------------------------------------------------------------------------
+
+PHONY += $(subdir-ym)
+$(subdir-ym):
+	$(Q)$(MAKE) $(build)=$@
+
+# Add FORCE to the prequisites of a target to force it to be always rebuilt.
+# ---------------------------------------------------------------------------
+
+PHONY += FORCE
+
+FORCE:
+
+# Read all saved command lines and dependencies for the $(targets) we
+# may be building above, using $(if_changed{,_dep}). As an
+# optimization, we don't need to read them if the target does not
+# exist, we will rebuild anyway in that case.
+
+targets := $(wildcard $(sort $(targets)))
+cmd_files := $(wildcard $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
+
+ifneq ($(cmd_files),)
+  include $(cmd_files)
+endif
+
+# Declare the contents of the .PHONY variable as phony.  We keep that
+# information in a variable se we can use it in if_changed and friends.
+
+.PHONY: $(PHONY)

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new file mode 100644
index 0000000..a776371
@@ -0,0 +1 @@
+fixdep

new file mode 100644
index 0000000..4fcef87
@@ -0,0 +1,15 @@
+###
+# Makefile.basic lists the most basic programs used during the build process.
+# The programs listed herein are what are needed to do the basic stuff,
+# such as fix file dependencies.
+# This initial step is needed to avoid files to be recompiled
+# when kernel configuration changes (which is what happens when
+# .config is included by main Makefile.
+# ---------------------------------------------------------------------------
+# fixdep: 	 Used to generate dependency information during build process
+
+hostprogs-y	:= fixdep
+always		:= $(hostprogs-y)
+
+# fixdep is needed to compile other host programs
+$(addprefix $(obj)/,$(filter-out fixdep,$(always))): $(obj)/fixdep

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index 1409c8b..4f00f08 100644
@@ -43,6 +43,78 @@ else
 XECHO = :
 endif
 
+# *DOCUMENTATION*
+# To see a list of typical targets execute "make help"
+# More info can be located in ./README
+# Comments in this file are targeted only to the developer, do not
+# expect to learn how to build the kernel reading this file.
+
+# Do not:
+# o  use make's built-in rules and variables
+#    (this increases performance and avoids hard-to-debug behaviour);
+# o  print "Entering directory ...";
+MAKEFLAGS += -rR --no-print-directory
+
+# Avoid funny character set dependencies
+unexport LC_ALL
+LC_COLLATE=C
+LC_NUMERIC=C
+export LC_COLLATE LC_NUMERIC
+
+# We are using a recursive build, so we need to do a little thinking
+# to get the ordering right.
+#
+# Most importantly: sub-Makefiles should only ever modify files in
+# their own directory. If in some directory we have a dependency on
+# a file in another dir (which doesn't happen often, but it's often
+# unavoidable when linking the built-in.o targets which finally
+# turn into vmlinux), we will call a sub make in that other dir, and
+# after that we are sure that everything which is in that other dir
+# is now up to date.
+#
+# The only cases where we need to modify files which have global
+# effects are thus separated out and done before the recursive
+# descending is started. They are now explicitly listed as the
+# prepare rule.
+
+# To put more focus on warnings, be less verbose as default
+# Use 'make V=1' to see the full commands
+
+ifeq ("$(origin V)", "command line")
+  KBUILD_VERBOSE = $(V)
+endif
+ifndef KBUILD_VERBOSE
+  KBUILD_VERBOSE = 0
+endif
+
+# Call a source code checker (by default, "sparse") as part of the
+# C compilation.
+#
+# Use 'make C=1' to enable checking of only re-compiled files.
+# Use 'make C=2' to enable checking of *all* source files, regardless
+# of whether they are re-compiled or not.
+#
+# See the file "Documentation/sparse.txt" for more details, including
+# where to get the "sparse" utility.
+
+ifeq ("$(origin C)", "command line")
+  KBUILD_CHECKSRC = $(C)
+endif
+ifndef KBUILD_CHECKSRC
+  KBUILD_CHECKSRC = 0
+endif
+
+# Use make M=dir to specify directory of external module to build
+# Old syntax make ... SUBDIRS=$PWD is still supported
+# Setting the environment variable KBUILD_EXTMOD take precedence
+ifdef SUBDIRS
+  KBUILD_EXTMOD ?= $(SUBDIRS)
+endif
+
+ifeq ("$(origin M)", "command line")
+  KBUILD_EXTMOD := $(M)
+endif
+
 # kbuild supports saving output files in a separate directory.
 # To locate output files in a separate directory two syntaxes are supported.
 # In both cases the working directory must be the root of the kernel src.

@@ -107,8 +179,14 @@ endif # ifeq ($(KBUILD_SRC),)
 # We process the rest of the Makefile if this is the final invocation of make
 ifeq ($(skip-makefile),)
 
+# If building an external module we do not care about the all: rule
+# but instead _all depend on modules
 PHONY += all
+ifeq ($(KBUILD_EXTMOD),)
 _all: all
+else
+_all: modules
+endif
 
 srctree		:= $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR))
 objtree		:= $(CURDIR)

@@ -119,24 +197,6 @@ VPATH		:= $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
 
 export srctree objtree VPATH
 
-# Call a source code checker (by default, "sparse") as part of the
-# C compilation.
-#
-# Use 'make C=1' to enable checking of re-compiled files.
-#
-# See the linux kernel file "Documentation/sparse.txt" for more details,
-# including where to get the "sparse" utility.
-
-ifdef C
-ifeq ("$(origin C)", "command line")
-CHECKSRC := $(C)
-endif
-endif
-ifndef CHECKSRC
-  CHECKSRC = 0
-endif
-export CHECKSRC
-
 OBJTREE		:= $(objtree)
 SPLTREE		:= $(OBJTREE)/spl
 TPLTREE		:= $(OBJTREE)/tpl

@@ -222,6 +282,78 @@ HOSTCFLAGS  += $(call os_x_before, 10, 4, "-traditional-cpp")
 HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
 endif
 
+# Decide whether to build built-in, modular, or both.
+# Normally, just do built-in.
+
+KBUILD_MODULES :=
+KBUILD_BUILTIN := 1
+
+#	If we have only "make modules", don't compile built-in objects.
+#	When we're building modules with modversions, we need to consider
+#	the built-in objects during the descend as well, in order to
+#	make sure the checksums are up to date before we record them.
+
+ifeq ($(MAKECMDGOALS),modules)
+  KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
+endif
+
+#	If we have "make <whatever> modules", compile modules
+#	in addition to whatever we do anyway.
+#	Just "make" or "make all" shall build modules as well
+
+# U-Boot does not need modules
+#ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
+#  KBUILD_MODULES := 1
+#endif
+
+#ifeq ($(MAKECMDGOALS),)
+#  KBUILD_MODULES := 1
+#endif
+
+export KBUILD_MODULES KBUILD_BUILTIN
+export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
+
+# Beautify output
+# ---------------------------------------------------------------------------
+#
+# Normally, we echo the whole command before executing it. By making
+# that echo $($(quiet)$(cmd)), we now have the possibility to set
+# $(quiet) to choose other forms of output instead, e.g.
+#
+#         quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
+#         cmd_cc_o_c       = $(CC) $(c_flags) -c -o $@ $<
+#
+# If $(quiet) is empty, the whole command will be printed.
+# If it is set to "quiet_", only the short version will be printed. 
+# If it is set to "silent_", nothing will be printed@all, since
+# the variable $(silent_cmd_cc_o_c) doesn't exist.
+#
+# A simple variant is to prefix commands with $(Q) - that's useful
+# for commands that shall be hidden in non-verbose mode.
+#
+#	$(Q)ln $@ :<
+#
+# If KBUILD_VERBOSE equals 0 then the above command will be hidden.
+# If KBUILD_VERBOSE equals 1 then the above command is displayed.
+
+ifeq ($(KBUILD_VERBOSE),1)
+  quiet =
+  Q =
+else
+  quiet=quiet_
+  Q = @
+endif
+
+# If the user is running make -s (silent mode), suppress echoing of
+# commands
+
+ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
+  quiet=silent_
+endif
+
+export quiet Q KBUILD_VERBOSE
+
+
 # Look for make include files relative to root of kernel src
 MAKEFLAGS += --include-dir=$(srctree)
 

@@ -278,6 +410,31 @@ export DTC CHECK CHECKFLAGS
 export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE
 export KBUILD_CFLAGS KBUILD_AFLAGS
 
+# When compiling out-of-tree modules, put MODVERDIR in the module
+# tree rather than in the kernel tree. The kernel tree might
+# even be read-only.
+export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
+
+# Files to ignore in find ... statements
+
+RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS \
+		   -o -name .pc -o -name .hg -o -name .git \) -prune -o
+export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
+			 --exclude CVS --exclude .pc --exclude .hg --exclude .git
+
+# ===========================================================================
+# Rules shared between *config targets and build targets
+
+# Basic helpers built in scripts/
+PHONY += scripts_basic
+scripts_basic:
+	$(Q)$(MAKE) $(build)=scripts/basic
+	$(Q)rm -f .tmp_quiet_recordmcount
+
+# To avoid any implicit rule to kick in, define an empty command.
+scripts/basic/%: scripts_basic ;
+
+
 KBUILD_CFLAGS += -Os #-fomit-frame-pointer
 
 ifdef BUILD_TAG

@@ -333,6 +490,10 @@ endif
 endif
 endif
 
+# FIX ME
+cpp_flags := $(KBUILD_CPPFLAGS) $(CPPFLAGS) $(UBOOTINCLUDE) $(NOSTDINC_FLAGS)
+c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
+
 # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
 # that (or fail if absent).  Otherwise, search for a linker script in a
 # standard location.

@@ -446,12 +607,12 @@ LIBS := $(sort $(LIBS-y))
 # Add GCC lib
 ifdef USE_PRIVATE_LIBGCC
 ifeq ("$(USE_PRIVATE_LIBGCC)", "yes")
-PLATFORM_LIBGCC = $(OBJTREE)/arch/$(ARCH)/lib/libgcc.o
+PLATFORM_LIBGCC = $(OBJTREE)/arch/$(ARCH)/lib/lib.a
 else
 PLATFORM_LIBGCC = -L $(USE_PRIVATE_LIBGCC) -lgcc
 endif
 else
-PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(CFLAGS) -print-libgcc-file-name`) -lgcc
+PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
 endif
 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
 export PLATFORM_LIBS

@@ -701,7 +862,7 @@ u-boot:	depend $(SUBDIR_TOOLS) $(OBJS) $(LIBS) u-boot.lds
 ifeq ($(CONFIG_KALLSYMS),y)
 		smap=`$(call SYSTEM_MAP,u-boot) | \
 			awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
-		$(CC) $(CFLAGS) -DSYSTEM_MAP="\"$${smap}\"" \
+		$(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
 			-c $(srctree)/common/system_map.c -o common/system_map.o
 		$(GEN_UBOOT) common/system_map.o
 endif

@@ -709,27 +870,27 @@ endif
 $(OBJS):
 	@:
 
-$(LIBS):	depend $(SUBDIR_TOOLS)
-		$(MAKE) $(build)=$(patsubst %/,%,$(dir $@))
+$(LIBS):	depend $(SUBDIR_TOOLS) scripts_basic
+		$(Q)$(MAKE) $(build)=$(patsubst %/,%,$(dir $@))
 
-$(SUBDIRS):	depend
-		$(MAKE) $(build)=$@ all
+$(SUBDIRS):	depend scripts_basic
+		$(Q)$(MAKE) $(build)=$@
 
 $(SUBDIR_EXAMPLES-y): u-boot
 
 u-boot.lds: $(LDSCRIPT) depend
-		$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$< >$@
+		$(CPP) $(cpp_flags) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$< >$@
 
-nand_spl:	$(TIMESTAMP_FILE) $(VERSION_FILE) depend
+nand_spl:	$(TIMESTAMP_FILE) $(VERSION_FILE) depend scripts_basic
 		$(MAKE) $(build)=nand_spl/board/$(BOARDDIR) all
 
 u-boot-nand.bin:	nand_spl u-boot.bin
 		cat nand_spl/u-boot-spl-16k.bin u-boot.bin > u-boot-nand.bin
 
-spl/u-boot-spl.bin:	$(SUBDIR_TOOLS) depend
+spl/u-boot-spl.bin:	$(SUBDIR_TOOLS) depend scripts_basic
 		$(MAKE) obj=spl -f $(srctree)/spl/Makefile all
 
-tpl/u-boot-tpl.bin:	$(SUBDIR_TOOLS) depend
+tpl/u-boot-tpl.bin:	$(SUBDIR_TOOLS) depend scripts_basic
 		$(MAKE) obj=tpl -f $(srctree)/spl/Makefile all CONFIG_TPL_BUILD=y
 
 # Explicitly make _depend in subdirs containing multiple targets to prevent

@@ -804,14 +965,14 @@ checkdtc:
 include/autoconf.mk.dep: include/config.h include/common.h
 	@$(XECHO) Generating $@ ; \
 	: Generate the dependancies ; \
-	$(CC) -x c -DDO_DEPS_ONLY -M $(CFLAGS) $(CPPFLAGS) \
+	$(CC) -x c -DDO_DEPS_ONLY -M $(c_flags) \
 		-MQ include/autoconf.mk $(srctree)/include/common.h > $@ || \
 		rm $@
 
 include/autoconf.mk: include/config.h
 	@$(XECHO) Generating $@ ; \
 	: Extract the config macros ; \
-	$(CPP) $(CFLAGS) -DDO_DEPS_ONLY -dM $(srctree)/include/common.h > [email protected] && \
+	$(CPP) $(c_flags) -DDO_DEPS_ONLY -dM $(srctree)/include/common.h > [email protected] && \
 		sed -n -f $(srctree)/tools/scripts/define2mk.sed [email protected] > $@; \
 	rm [email protected]
 

@@ -819,7 +980,7 @@ include/autoconf.mk: include/config.h
 include/tpl-autoconf.mk: include/config.h
 	@$(XECHO) Generating $@ ; \
 	: Extract the config macros ; \
-	$(CPP) $(CFLAGS) -DCONFIG_TPL_BUILD  -DCONFIG_SPL_BUILD\
+	$(CPP) $(c_flags) -DCONFIG_TPL_BUILD  -DCONFIG_SPL_BUILD\
 			-DDO_DEPS_ONLY -dM $(srctree)/include/common.h > [email protected] && \
 		sed -n -f $(srctree)/tools/scripts/define2mk.sed [email protected] > $@; \
 	rm [email protected]

@@ -827,7 +988,7 @@ include/tpl-autoconf.mk: include/config.h
 include/spl-autoconf.mk: include/config.h
 	@$(XECHO) Generating $@ ; \
 	: Extract the config macros ; \
-	$(CPP) $(CFLAGS) -DCONFIG_SPL_BUILD -DDO_DEPS_ONLY -dM $(srctree)/include/common.h > [email protected] && \
+	$(CPP) $(c_flags) -DCONFIG_SPL_BUILD -DDO_DEPS_ONLY -dM $(srctree)/include/common.h > [email protected] && \
 		sed -n -f $(srctree)/tools/scripts/define2mk.sed [email protected] > $@; \
 	rm [email protected]
 

@@ -838,7 +999,7 @@ include/generated/generic-asm-offsets.h: lib/asm-offsets.s
 lib/asm-offsets.s: include/config.h $(srctree)/lib/asm-offsets.c
 	@mkdir -p lib
 	$(CC) -DDO_DEPS_ONLY \
-		$(CFLAGS) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR)) \
+		$(c_flags) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR)) \
 		-o $@ $(srctree)/lib/asm-offsets.c -c -S
 
 include/generated/asm-offsets.h: $(CPUDIR)/$(SOC)/asm-offsets.s

@@ -849,7 +1010,7 @@ $(CPUDIR)/$(SOC)/asm-offsets.s:	include/config.h
 	@mkdir -p $(CPUDIR)/$(SOC)
 	if [ -f $(srctree)/$(CPUDIR)/$(SOC)/asm-offsets.c ];then \
 		$(CC) -DDO_DEPS_ONLY \
-		$(CFLAGS) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR)) \
+		$(c_flags) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR)) \
 			-o $@ $(srctree)/$(CPUDIR)/$(SOC)/asm-offsets.c -c -S; \
 	else \
 		touch $@; \

@@ -900,15 +1061,15 @@ $(TIMESTAMP_FILE):
 		@cmp -s $@ [email protected] && rm -f [email protected] || mv -f [email protected] $@
 
 easylogo env gdb:
-	$(MAKE) $(build)=tools/$@ MTD_VERSION=${MTD_VERSION}
+	$(Q)$(MAKE) $(build)=tools/$@ MTD_VERSION=${MTD_VERSION}
 
 gdbtools: gdb
 
 xmldocs pdfdocs psdocs htmldocs mandocs: tools/kernel-doc/docproc
-	$(MAKE) U_BOOT_VERSION=$(U_BOOT_VERSION) $(build)=doc/DocBook $@
+	$(Q)$(MAKE) U_BOOT_VERSION=$(U_BOOT_VERSION) $(build)=doc/DocBook $@
 
 tools-all: easylogo env gdb $(VERSION_FILE) $(TIMESTAMP_FILE)
-	$(MAKE) $(build)=tools HOST_TOOLS_ALL=y
+	$(Q)$(MAKE) $(build)=tools HOST_TOOLS_ALL=y
 
 .PHONY : CHANGELOG
 CHANGELOG:

@@ -968,7 +1129,7 @@ clean:
 	@$(MAKE) -f $(srctree)/doc/DocBook/Makefile cleandocs
 	@find $(OBJTREE) -type f \
 		\( -name 'core' -o -name '*.bak' -o -name '*~' -o -name '*.su' \
-		-o -name '*.o'	-o -name '*.a' -o -name '*.exe' \
+		-o -name '*.o'	-o -name '*.a' -o -name '*.exe' -o -name '*.cmd' \
 		-o -name '*.cfgtmp' \) -print \
 		| xargs rm -f
 

index ee5c872..9dda59d 100644
@@ -25,7 +25,7 @@ obj-$(CONFIG_CMD_HDMIDETECT) += cmd_hdmidet.o
 
 $(OBJTREE)/$(patsubst "%",%,$(CONFIG_IMX_CONFIG)).cfgtmp: $(OBJTREE)/%.cfgtmp : $(SRCTREE)/%
 	mkdir -p $(dir $@)
-	$(CC) -E -x c $< $(CPPFLAGS) -o $@
+	$(CPP) $(cpp_flags) -x c -o $@ $<
 
 $(OBJTREE)/u-boot.imx: $(OBJTREE)/u-boot.bin $(OBJTREE)/$(patsubst "%",%,$(CONFIG_IMX_CONFIG)).cfgtmp
 	$(OBJTREE)/tools/mkimage -n $(filter-out %.bin,$^) -T imximage \

index 369dc74..dd4d2d1 100644
@@ -25,7 +25,7 @@ extra-y += check_initcode
 
 # make sure our initcode (which goes into LDR) does not
 # have relocs or external references
-$(obj)/initcode.o: CFLAGS += -fno-function-sections -fno-data-sections
+CFLAGS_REMOVE_initcode.o := -ffunction-sections -fdata-sections
 READINIT = env LC_ALL=C $(CROSS_COMPILE)readelf -s $<
 $(obj)/check_initcode: $(obj)/initcode.o
 ifneq ($(CONFIG_BFIN_BOOT_MODE),BFIN_BOOT_BYPASS)

@@ -35,7 +35,6 @@ ifneq ($(CONFIG_BFIN_BOOT_MODE),BFIN_BOOT_BYPASS)
 	fi
 endif
 
-$(obj)/init.lds: $(src)/init.lds.S
-	$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P $^ -o $@
+CPPFLAGS_init.lds := -ansi
 $(obj)/init.elf: $(obj)/init.lds $(obj)/init.o $(obj)/initcode.o
 	$(LD) $(LDFLAGS) -T $^ -o $@

index a5c552f..4ba7bf6 100644
@@ -9,7 +9,10 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS += -DBFIN_BOARD_NAME='"$(BOARD)"'
+# Unnecessary.
+# Use CONFIG_SYS_BOARD instead of BFIN_BOARD_NAME
+# and delete this.
+ccflags-y += -DBFIN_BOARD_NAME='"$(BOARD)"'
 
 obj-y	+= ins.o
 obj-y	+= memcmp.o

index a47fd56..e0c5db6 100644
@@ -5,7 +5,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-# CFLAGS += -DET_DEBUG
+# ccflags-y += -DET_DEBUG
 
 extra-y	= start.o
 obj-y	= cpu.o speed.o cpu_init.o interrupts.o

index a47fd56..e0c5db6 100644
@@ -5,7 +5,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-# CFLAGS += -DET_DEBUG
+# ccflags-y += -DET_DEBUG
 
 extra-y	= start.o
 obj-y	= cpu.o speed.o cpu_init.o interrupts.o

index d9bf900..b92fd86 100644
@@ -5,7 +5,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-# CFLAGS += -DET_DEBUG
+# ccflags-y += -DET_DEBUG
 
 extra-y	= start.o
 obj-y	= interrupts.o cpu.o speed.o cpu_init.o

index 97aa3f1..9c53c50 100644
@@ -5,7 +5,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-# CFLAGS += -DET_DEBUG
+# ccflags-y += -DET_DEBUG
 
 extra-y := start.o
 obj-y	= cpu.o speed.o cpu_init.o interrupts.o

index b506719..9be91ed 100644
@@ -5,7 +5,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-# CFLAGS += -DET_DEBUG
+# ccflags-y += -DET_DEBUG
 
 extra-y	= start.o
 obj-y	= cpu.o speed.o cpu_init.o interrupts.o pci.o

index 0fa50bf..4f82099 100644
@@ -5,7 +5,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-# CFLAGS += -DET_DEBUG
+# ccflags-y += -DET_DEBUG
 
 extra-y = start.o
 obj-y	= cpu.o speed.o cpu_init.o pci.o interrupts.o slicetimer.o

index d40bdab..f83fd5e 100644
@@ -5,7 +5,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-# CFLAGS += -DET_DEBUG
+# ccflags-y += -DET_DEBUG
 
 extra-y += start.o
 extra-y += traps.o

index ac780d4..e6d8be5 100644
@@ -54,11 +54,11 @@ ifndef CONFIG_SPL_BUILD
 # Workaround for local bus unaligned access problems
 # on MPC512x and MPC5200
 ifdef CONFIG_MPC512X
-$(obj)/ppcstring.o: AFLAGS += -Dmemcpy=__memcpy
+AFLAGS_ppcstring.o += -Dmemcpy=__memcpy
 obj-y += memcpy_mpc5200.o
 endif
 ifdef CONFIG_MPC5200
-$(obj)/ppcstring.o: AFLAGS += -Dmemcpy=__memcpy
+AFLAGS_ppcstring.o += -Dmemcpy=__memcpy
 obj-y += memcpy_mpc5200.o
 endif
 endif

index c5f5426..63deded 100644
@@ -10,7 +10,10 @@
 obj-y	:= cpu.o os.o start.o state.o
 
 # os.c is build in the system environment, so needs standard includes
-$(obj)/os.o: CFLAGS := $(filter-out -nostdinc,\
-	$(patsubst -I%,-idirafter%,$(CFLAGS)))
-$(obj)/.depend.os: CPPFLAGS := $(filter-out -nostdinc,\
-	$(patsubst -I%,-idirafter%,$(CPPFLAGS)))
+# CFLAGS_REMOVE_os.o cannot be used to drop header include path
+quiet_cmd_cc_os.o = CC $(quiet_modtag)  $@
+cmd_cc_os.o = $(CC) $(filter-out -nostdinc, \
+	$(patsubst -I%,-idirafter%,$(c_flags))) -c -o $@ $<
+
+$(obj)/os.o: $(src)/os.c FORCE
+	$(call if_changed_dep,cc_os.o)

index f1ef9bf..0d3df2d 100644
@@ -7,6 +7,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif

index f1ef9bf..0d3df2d 100644
@@ -7,6 +7,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif

index f1ef9bf..0d3df2d 100644
@@ -7,6 +7,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif

index f1ef9bf..0d3df2d 100644
@@ -7,6 +7,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif

index f1ef9bf..0d3df2d 100644
@@ -7,6 +7,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif

index 5f327a9..af299f5 100644
@@ -7,9 +7,10 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
 
 # Set some default LDR flags based on boot mode.
 LDR_FLAGS-BFIN_BOOT_PARA := --bits 16 --dma 6

index 973d357..97eaafe 100644
@@ -7,9 +7,10 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
 
 # Set some default LDR flags based on boot mode.
 LDR_FLAGS-BFIN_BOOT_PARA := --bits 16 --dma 8

index 973d357..97eaafe 100644
@@ -7,9 +7,10 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
 
 # Set some default LDR flags based on boot mode.
 LDR_FLAGS-BFIN_BOOT_PARA := --bits 16 --dma 8

index ae2ea0b..bc0e747 100644
@@ -7,9 +7,10 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
 
 # Set some default LDR flags based on boot mode.
 LDR_FLAGS-BFIN_BOOT_PARA := --bits 16 --dma 8

index 973d357..97eaafe 100644
@@ -7,9 +7,10 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
 
 # Set some default LDR flags based on boot mode.
 LDR_FLAGS-BFIN_BOOT_PARA := --bits 16 --dma 8

index ad3a729..8d2c60f 100644
@@ -7,9 +7,10 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
 
 # Set some default LDR flags based on boot mode.
 LDR_FLAGS-BFIN_BOOT_PARA       := --dma 6

index c33aef9..ce94715 100644
@@ -7,9 +7,10 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
 
 # Set some default LDR flags based on boot mode.
 LDR_FLAGS-BFIN_BOOT_PARA := --bits 16

index c33aef9..ce94715 100644
@@ -7,9 +7,10 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
 
 # Set some default LDR flags based on boot mode.
 LDR_FLAGS-BFIN_BOOT_PARA := --bits 16

index 5c18d5c..2436ec0 100644
@@ -9,6 +9,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif

index f1ef9bf..0d3df2d 100644
@@ -7,6 +7,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif

index 973d357..97eaafe 100644
@@ -7,9 +7,10 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
 
 # Set some default LDR flags based on boot mode.
 LDR_FLAGS-BFIN_BOOT_PARA := --bits 16 --dma 8

index 973d357..97eaafe 100644
@@ -7,9 +7,10 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
 
 # Set some default LDR flags based on boot mode.
 LDR_FLAGS-BFIN_BOOT_PARA := --bits 16 --dma 8

index 973d357..97eaafe 100644
@@ -7,9 +7,10 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
 
 # Set some default LDR flags based on boot mode.
 LDR_FLAGS-BFIN_BOOT_PARA := --bits 16 --dma 8

index c005afb..289c8a4 100644
@@ -7,9 +7,10 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
 
 # Set some default LDR flags based on boot mode.
 LDR_FLAGS-BFIN_BOOT_PARA       := --dma 6

index c33aef9..ce94715 100644
@@ -7,9 +7,10 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
 
 # Set some default LDR flags based on boot mode.
 LDR_FLAGS-BFIN_BOOT_PARA := --bits 16

index ae2ea0b..bc0e747 100644
@@ -7,9 +7,10 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
 
 # Set some default LDR flags based on boot mode.
 LDR_FLAGS-BFIN_BOOT_PARA := --bits 16 --dma 8

index c6c0933..c056eba 100644
@@ -8,4 +8,4 @@
 obj-y += mvblx.o fpga.o
 obj-$(CONFIG_ID_EEPROM) += sys_eeprom.o
 
-CFLAGS += -Werror
+ccflags-y += -Werror

index 5c18d5c..2436ec0 100644
@@ -9,6 +9,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif

index f890008..d5a9b34 100644
@@ -13,7 +13,7 @@
 BUILDUSER := $(shell whoami)
 FORCEBUILD := $(shell rm -f karef.o)
 
-CFLAGS += -DBUILDUSER='"$(BUILDUSER)"'
+ccflags-y += -DBUILDUSER='"$(BUILDUSER)"'
 # TBS: end debugging
 
 obj-y	= karef.o ../common/flash.o ../common/sb_common.o

index 37d91a5..8121cce 100644
@@ -12,7 +12,7 @@
 BUILDUSER := $(shell whoami)
 FORCEBUILD := $(shell rm -f metrobox.o)
 
-CFLAGS += -DBUILDUSER='"$(BUILDUSER)"'
+ccflags-y += -DBUILDUSER='"$(BUILDUSER)"'
 # TBS: end debugging
 
 obj-y	= metrobox.o ../common/flash.o ../common/sb_common.o

index 6867a70..f0605e2 100644
@@ -4,6 +4,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS += -D__RELEASE -D__STN_8500
+ccflags-y += -D__RELEASE -D__STN_8500
 
 obj-y	:= snowball.o

index b9dfbe9..d6c4280 100644
@@ -4,6 +4,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS += -D__RELEASE -D__STN_8500
+ccflags-y += -D__RELEASE -D__STN_8500
 
 obj-y	:= u8500_href.o gpio.o

index f1ef9bf..0d3df2d 100644
@@ -7,6 +7,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif

index 973d357..97eaafe 100644
@@ -7,9 +7,10 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
 
 # Set some default LDR flags based on boot mode.
 LDR_FLAGS-BFIN_BOOT_PARA := --bits 16 --dma 8

index a292ee8..9c90722 100644
@@ -234,10 +234,6 @@ obj-$(CONFIG_FIT_SIGNATURE) += image-sig.o
 obj-y += memsize.o
 obj-y += stdio.o
 
-$(obj)/env_embedded.o: $(src)/env_embedded.c
-	$(CC) $(AFLAGS) -Wa,--no-warn \
-		-DENV_CRC=$(shell tools/envcrc) -c -o $@ $<
-
-# SEE README.arm-unaligned-accesses
-$(obj)/hush.o: CFLAGS += $(PLATFORM_NO_UNALIGNED)
-$(obj)/fdt_support.o: CFLAGS += $(PLATFORM_NO_UNALIGNED)
+CFLAGS_env_embedded.o := -Wa,--no-warn -DENV_CRC=$(shell tools/envcrc 2>/dev/null)
+CFLAGS_hush.o := $(PLATFORM_NO_UNALIGNED)
+CFLAGS_fdt_support.o := $(PLATFORM_NO_UNALIGNED)

index 0fa3167..1336ef8 100644
@@ -58,19 +58,10 @@ RELFLAGS= $(PLATFORM_RELFLAGS)
 
 OBJCFLAGS += --gap-fill=0xff
 
-CPPFLAGS = $(KBUILD_CPPFLAGS) $(RELFLAGS)
-CPPFLAGS += $(UBOOTINCLUDE)
-CPPFLAGS += $(NOSTDINC_FLAGS) -pipe $(PLATFORM_CPPFLAGS)
-
-CFLAGS := $(KBUILD_CFLAGS) $(CPPFLAGS)
+CPPFLAGS = $(RELFLAGS)
+CPPFLAGS += -pipe $(PLATFORM_CPPFLAGS)
 
 BCURDIR = $(subst $(SRCTREE)/,,$(CURDIR:$(obj)%=%))
 
-AFLAGS := $(KBUILD_AFLAGS) $(CPPFLAGS)
-
 LDFLAGS += $(PLATFORM_LDFLAGS)
 LDFLAGS_FINAL += -Bstatic
-
-#########################################################################
-
-export PLATFORM_CPPFLAGS PLATFORM_RELFLAGS CPPFLAGS CFLAGS AFLAGS

index 48abec8..6970cec 100644
@@ -5,7 +5,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-#CFLAGS += -DET_DEBUG -DDEBUG
+#ccflags-y += -DET_DEBUG -DDEBUG
 
 obj-$(CONFIG_PARTITIONS) 	+= part.o
 obj-$(CONFIG_MAC_PARTITION)   += part_mac.o

140 lines not on this page · raw message

index 330f36f..e56356e 100644
@@ -8,8 +8,5 @@ obj-y = atibios.o biosemu.o besys.o bios.o \
 	$(X86DIR)/sys.o \
 	$(X86DIR)/debug.o
 
-EXTRA_CFLAGS += -I$(srctree)/$(src) -I$(srctree)/$(src)/include \
+ccflags-y := -I$(srctree)/$(src) -I$(srctree)/$(src)/include \
 	-D__PPC__  -D__BIG_ENDIAN__
-
-CFLAGS += $(EXTRA_CFLAGS)
-CPPFLAGS += $(EXTRA_CFLAGS)

index a78a724..25b8e8a 100644
@@ -8,7 +8,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-#CFLAGS += -DDEBUG
+#ccflags-y += -DDEBUG
 
 obj-$(CONFIG_DTT_ADM1021) += adm1021.o
 obj-$(CONFIG_DTT_ADT7460) += adt7460.o

index 0779255..ff554cf 100644
@@ -5,9 +5,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-LOCAL_CFLAGS  += -I$(TOPDIR)/drivers/net/npe/include -DCONFIG_IXP425_COMPONENT_ETHDB -D__linux
-CFLAGS  += $(LOCAL_CFLAGS)
-CPPFLAGS  += $(LOCAL_CFLAGS) # needed for depend
+ccflags-y += -I$(src)/include -DCONFIG_IXP425_COMPONENT_ETHDB -D__linux
 
 obj-y := npe.o \
 	miiphy.o \

index d5a2725..003d322 100644
@@ -5,7 +5,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-#CFLAGS += -DDEBUG
+#ccflags-y += -DDEBUG
 
 obj-$(CONFIG_RTC_AT91SAM9_RTT) += at91sam9_rtt.o
 obj-$(CONFIG_RTC_BFIN) += bfin_rtc.o

index ba72348..3facf0f 100644
@@ -9,7 +9,6 @@ obj-$(CONFIG_USB_MUSB_DSPS) += musb_dsps.o
 obj-$(CONFIG_USB_MUSB_AM35X) += am35x.o
 obj-$(CONFIG_USB_MUSB_OMAP2PLUS) += omap2430.o
 
-CFLAGS_NO_WARN := $(call cc-option,-Wno-unused-variable) \
-			$(call cc-option,-Wno-unused-but-set-variable) \
-			$(call cc-option,-Wno-unused-label)
-CFLAGS += $(CFLAGS_NO_WARN)
+ccflags-y := $(call cc-option,-Wno-unused-variable) \
+		$(call cc-option,-Wno-unused-but-set-variable) \
+		$(call cc-option,-Wno-unused-label)

index d81f32d..cc6ecf6 100644
@@ -36,7 +36,7 @@ process_lds = \
 	$(1) | sed -r -n 's/^OUTPUT_$(2)[ ("]*([^")]*).*/\1/p'
 
 # Run the compiler and get the link script from the linker
-GET_LDS = $(CC) $(CFLAGS) $(LDFLAGS) -Wl,--verbose 2>&1
+GET_LDS = $(CC) $(c_flags) $(ld_flags) -Wl,--verbose 2>&1
 
 $(obj)/dt.o: $(DT_BIN)
 	# We want the output format and arch.

index db0bb34..8b79886 100644
@@ -5,7 +5,7 @@
 #
 
 ifdef FTRACE
-CFLAGS += -finstrument-functions -DFTRACE
+ccflags-y += -finstrument-functions -DFTRACE
 endif
 
 ifeq ($(ARCH),powerpc)

@@ -33,12 +33,6 @@ EXT_COBJ_FILES-y += lib/time.o
 EXT_COBJ_FILES-y += lib/vsprintf.o
 EXT_SOBJ_FILES-$(CONFIG_PPC) += arch/powerpc/lib/ppcstring.o
 
-# Create a list of source files so their dependencies can be auto-generated
-SRCS	+= $(addprefix $(SRCTREE)/,$(EXT_COBJ_FILES-y:.o=.c))
-SRCS	+= $(addprefix $(SRCTREE)/,$(EXT_SOBJ_FILES-y:.o=.S))
-SRCS	+= $(addprefix $(SRCTREE)/examples/api/,$(COBJ_FILES-y:.o=.c))
-SRCS	+= $(addprefix $(SRCTREE)/examples/api/,$(SOBJ_FILES-y:.o=.S))
-
 # Create a list of object files to be compiled
 OBJS	+= $(addprefix $(obj)/,$(SOBJ_FILES-y))
 OBJS	+= $(addprefix $(obj)/,$(COBJ_FILES-y))

@@ -54,9 +48,10 @@ $(obj)/demo.bin: $(obj)/demo
 		$(OBJCOPY) -O binary $< $@ 2>/dev/null
 
 # Rule to build generic library C files
-$(addprefix $(obj)/,$(notdir $(EXT_COBJ_FILES-y))): $(obj)/%.o: $(SRCTREE)/lib/%.c
-	$(CC) -g $(CFLAGS) -c -o $@ $<
+$(addprefix $(obj)/,$(notdir $(EXT_COBJ_FILES-y))): $(obj)/%.o: $(SRCTREE)/lib/%.c FORCE
+	$(call cmd,force_checksrc)
+	$(call if_changed_rule,cc_o_c)
 
 # Rule to build architecture-specific library assembly files
 $(addprefix $(obj)/,$(notdir $(EXT_SOBJ_FILES-y))): $(obj)/%.o: $(SRCTREE)/arch/$(ARCH)/lib/%.S
-	$(CC) -g $(CFLAGS) -c -o $@ $<
+	$(call if_changed_dep,as_o_S)

index a6819f7..90e173b 100644
@@ -6,7 +6,7 @@
 #
 
 ifdef FTRACE
-CFLAGS += -finstrument-functions -DFTRACE
+ccflags-y += -finstrument-functions -DFTRACE
 endif
 
 extra-y        := hello_world

@@ -39,10 +39,11 @@ LIBAOBJS := $(LIBAOBJS-y)
 
 LIBCOBJS = stubs.o
 
+.SECONDARY: $(call objectify,$(COBJS))
+targets += $(patsubst $(obj)/%,%,$(LIB)) $(COBJS) $(LIBAOBJS) $(LIBCOBJS)
+
 LIBOBJS	= $(addprefix $(obj)/,$(LIBAOBJS) $(LIBCOBJS))
 
-SRCS	:= $(COBJS:.o=.c) $(LIBCOBJS:.o=.c) $(LIBAOBJS:.o=.S)
-OBJS	:= $(addprefix $(obj)/,$(COBJS))
 ELF	:= $(addprefix $(obj)/,$(ELF))
 
 gcclibdir := $(shell dirname `$(CC) -print-libgcc-file-name`)

@@ -52,19 +53,22 @@ gcclibdir := $(shell dirname `$(CC) -print-libgcc-file-name`)
 # also causes the entry point of the standalone application to be
 # inconsistent.
 ifeq ($(ARCH),powerpc)
-AFLAGS := $(filter-out $(RELFLAGS),$(AFLAGS))
-CFLAGS := $(filter-out $(RELFLAGS),$(CFLAGS))
-CPPFLAGS := $(filter-out $(RELFLAGS),$(CPPFLAGS))
+# FIX ME
+CPPFLAGS := $(filter-out $(RELFLAGS), $(CPPFLAGS))
 endif
 
 # We don't want gcc reordering functions if possible.  This ensures that an
 # application's entry point will be the first function in the application's
 # source file.
-CFLAGS += $(call cc-option,-fno-toplevel-reorder)
+ccflags-y += $(call cc-option,-fno-toplevel-reorder)
 
 #########################################################################
-$(LIB):	$(LIBOBJS)
-	$(call cmd_link_o_target, $(LIBOBJS))
+
+quiet_cmd_link_lib = LD      $@
+      cmd_link_lib = $(LD) $(ld_flags) -r -o $@ $(filter $(LIBOBJS), $^)
+
+$(LIB):	$(LIBOBJS) FORCE
+	$(call if_changed,link_lib)
 
 $(ELF):
 $(obj)/%:	$(obj)/%.o $(LIB)

index 5682b16..6b1a9a5 100644
@@ -15,4 +15,4 @@ obj-y += tnc.o tnc_misc.o debug.o crc16.o budget.o
 obj-y += log.o orphan.o recovery.o replay.o
 
 # SEE README.arm-unaligned-accesses
-$(obj)/super.o: CFLAGS += $(PLATFORM_NO_UNALIGNED)
+CFLAGS_super.o := $(PLATFORM_NO_UNALIGNED)

index d811287..45ff745 100644
@@ -24,9 +24,6 @@ obj-y := \
 	yaffs_summary.o yaffs_tagscompat.o yaffs_verify.o yaffs_yaffs1.o \
 	yaffs_yaffs2.o yaffs_mtdif.o yaffs_mtdif2.o
 
-YCFLAGS =  -DCONFIG_YAFFS_DIRECT -DCONFIG_YAFFS_SHORT_NAMES_IN_RAM
-YCFLAGS += -DCONFIG_YAFFS_YAFFS2 -DNO_Y_INLINE
-YCFLAGS += -DCONFIG_YAFFS_PROVIDE_DEFS -DCONFIG_YAFFSFS_PROVIDE_VALUES
-
-CFLAGS += $(YCFLAGS)
-CPPFLAGS +=  $(YCFLAGS)
+ccflags-y = -DCONFIG_YAFFS_DIRECT -DCONFIG_YAFFS_SHORT_NAMES_IN_RAM \
+		-DCONFIG_YAFFS_YAFFS2 -DNO_Y_INLINE \
+		-DCONFIG_YAFFS_PROVIDE_DEFS -DCONFIG_YAFFSFS_PROVIDE_VALUES

index 43b13d0..8c483c9 100644
@@ -67,4 +67,4 @@ obj-$(CONFIG_BOOTP_RANDOM_DELAY) += rand.o
 obj-$(CONFIG_CMD_LINK_LOCAL) += rand.o
 
 # SEE README.arm-unaligned-accesses
-$(obj)/bzlib.o: CFLAGS += $(PLATFORM_NO_UNALIGNED)
+CFLAGS_bzlib.o := $(PLATFORM_NO_UNALIGNED)

index f8eda06..b6c8067 100644
@@ -8,6 +8,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS += -D_LZMA_PROB32
+ccflags-y += -D_LZMA_PROB32
 
 obj-y += LzmaDec.o LzmaTools.o

index 041213f..d256abf 100644
@@ -12,17 +12,18 @@ nandobj	:= $(OBJTREE)/nand_spl/
 LDSCRIPT= $(TOPDIR)/nand_spl/board/$(BOARDDIR)/u-boot.lds
 LDFLAGS := -T $(nandobj)u-boot.lds -Ttext $(CONFIG_SYS_TEXT_BASE) $(LDFLAGS) \
 	   $(LDFLAGS_FINAL)
-AFLAGS	+= -DCONFIG_NAND_SPL
-CFLAGS	+= -DCONFIG_NAND_SPL
+asflags-y += -DCONFIG_NAND_SPL
+ccflags-y += -DCONFIG_NAND_SPL
 
 SOBJS	= start.o resetvec.o cache.o
 COBJS	= gpio.o nand_boot.o nand_ecc.o memory.o ndfc.o pll.o
 
-SRCS	:= $(addprefix $(obj)/,$(SOBJS:.o=.S) $(COBJS:.o=.c))
 OBJS	:= $(addprefix $(obj)/,$(SOBJS) $(COBJS))
 __OBJS	:= $(SOBJS) $(COBJS)
 LNDIR	:= $(nandobj)board/$(BOARDDIR)
 
+targets += $(__OBJS)
+
 all: $(nandobj)u-boot-spl.bin $(nandobj)u-boot-spl-16k.bin \
 	$(nandobj)System.map
 

@@ -42,7 +43,7 @@ $(nandobj)System.map:	$(nandobj)u-boot-spl
 		sort > $@
 
 $(nandobj)u-boot.lds: $(LDSCRIPT)
-	$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
+	$(CPP) $(cpp_flags) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
 
 # create symbolic links for common files
 

index 92b604e..4f36d6c 100644
@@ -12,17 +12,18 @@ nandobj	:= $(OBJTREE)/nand_spl/
 LDSCRIPT= $(TOPDIR)/nand_spl/board/$(BOARDDIR)/u-boot.lds
 LDFLAGS := -T $(nandobj)u-boot.lds -Ttext $(CONFIG_SYS_TEXT_BASE) $(LDFLAGS) \
 	   $(LDFLAGS_FINAL)
-AFLAGS	+= -DCONFIG_NAND_SPL
-CFLAGS	+= -DCONFIG_NAND_SPL
+asflags-y += -DCONFIG_NAND_SPL
+ccflags-y += -DCONFIG_NAND_SPL
 
 SOBJS	= start.o init.o resetvec.o
 COBJS	= nand_boot.o nand_ecc.o ndfc.o sdram.o
 
-SRCS	:= $(addprefix $(obj)/,$(SOBJS:.o=.S) $(COBJS:.o=.c))
 OBJS	:= $(addprefix $(obj)/,$(SOBJS) $(COBJS))
 __OBJS	:= $(SOBJS) $(COBJS)
 LNDIR	:= $(nandobj)board/$(BOARDDIR)
 
+targets += $(__OBJS)
+
 all: $(nandobj)u-boot-spl.bin $(nandobj)u-boot-spl-16k.bin
 
 $(nandobj)u-boot-spl-16k.bin: $(nandobj)u-boot-spl

@@ -36,7 +37,7 @@ $(nandobj)u-boot-spl:	$(OBJS) $(nandobj)u-boot.lds
 		-Map $(nandobj)u-boot-spl.map -o $@
 
 $(nandobj)u-boot.lds: $(LDSCRIPT)
-	$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
+	$(CPP) $(cpp_flags) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
 
 # create symbolic links for common files
 

index 9a730e9..5c9c8e8 100644
@@ -12,8 +12,8 @@ nandobj	:= $(OBJTREE)/nand_spl/
 LDSCRIPT= $(TOPDIR)/nand_spl/board/$(BOARDDIR)/u-boot.lds
 LDFLAGS := -T $(nandobj)u-boot.lds -Ttext $(CONFIG_SYS_TEXT_BASE) $(LDFLAGS) \
 	   $(LDFLAGS_FINAL)
-AFLAGS	+= -DCONFIG_NAND_SPL
-CFLAGS	+= -DCONFIG_NAND_SPL
+asflags-y += -DCONFIG_NAND_SPL
+ccflags-y += -DCONFIG_NAND_SPL
 
 SOBJS	:= start.o
 SOBJS	+= init.o

@@ -23,11 +23,12 @@ COBJS	+= nand_boot.o
 COBJS	+= nand_ecc.o
 COBJS	+= ndfc.o
 
-SRCS	:= $(addprefix $(obj)/,$(SOBJS:.o=.S) $(COBJS:.o=.c))
 OBJS	:= $(addprefix $(obj)/,$(SOBJS) $(COBJS))
 __OBJS	:= $(SOBJS) $(COBJS)
 LNDIR	:= $(nandobj)board/$(BOARDDIR)
 
+targets += $(__OBJS)
+
 all: $(nandobj)u-boot-spl.bin $(nandobj)u-boot-spl-16k.bin
 
 $(nandobj)u-boot-spl-16k.bin: $(nandobj)u-boot-spl

@@ -41,7 +42,7 @@ $(nandobj)u-boot-spl:	$(OBJS) $(nandobj)u-boot.lds
 		-Map $(nandobj)u-boot-spl.map -o $@
 
 $(nandobj)u-boot.lds: $(LDSCRIPT)
-	$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
+	$(CPP) $(cpp_flags) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
 
 # create symbolic links for common files