Browse Source

kbuild: use Linux Kernel build scripts

Now we are ready to switch over to real Kbuild.

This commit disables temporary scripts:
  scripts/{Makefile.build.tmp, Makefile.host.tmp}
and enables real Kbuild scripts:
  scripts/{Makefile.build,Makefile.host,Makefile.lib}.

This switch is triggered by the line in scripts/Kbuild.include
  -build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build.tmp obj
  +build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build obj

We need to adjust some build scripts for U-Boot.
But smaller amount of modification is preferable.

Additionally, we need to fix compiler flags which are
locally added or removed.

In Kbuild, it is not allowed to change CFLAGS locally.
Instead, ccflags-y, asflags-y, cppflags-y,
CFLAGS_$(basetarget).o, CFLAGS_REMOVE_$(basetarget).o
are prepared for that purpose.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Tested-by: Gerhard Sittig <gsi@denx.de>
Masahiro Yamada 10 years ago
parent
commit
6825a95b0b
77 changed files with 526 additions and 325 deletions
  1. 200 39
      Makefile
  2. 1 1
      arch/arm/imx-common/Makefile
  3. 2 3
      arch/blackfin/cpu/Makefile
  4. 4 1
      arch/blackfin/lib/Makefile
  5. 1 1
      arch/m68k/cpu/mcf5227x/Makefile
  6. 1 1
      arch/m68k/cpu/mcf523x/Makefile
  7. 1 1
      arch/m68k/cpu/mcf52x2/Makefile
  8. 1 1
      arch/m68k/cpu/mcf532x/Makefile
  9. 1 1
      arch/m68k/cpu/mcf5445x/Makefile
  10. 1 1
      arch/m68k/cpu/mcf547x_8x/Makefile
  11. 1 1
      arch/powerpc/cpu/mpc8xx/Makefile
  12. 2 2
      arch/powerpc/lib/Makefile
  13. 7 4
      arch/sandbox/cpu/Makefile
  14. 4 3
      board/bct-brettl2/config.mk
  15. 4 3
      board/bf518f-ezbrd/config.mk
  16. 4 3
      board/bf526-ezbrd/config.mk
  17. 4 3
      board/bf527-ad7160-eval/config.mk
  18. 4 3
      board/bf527-ezkit/config.mk
  19. 4 3
      board/bf527-sdp/config.mk
  20. 4 3
      board/bf533-ezkit/config.mk
  21. 4 3
      board/bf533-stamp/config.mk
  22. 4 3
      board/bf537-stamp/config.mk
  23. 4 3
      board/bf538f-ezkit/config.mk
  24. 4 3
      board/bf548-ezkit/config.mk
  25. 4 3
      board/bf561-acvilon/config.mk
  26. 4 3
      board/bf561-ezkit/config.mk
  27. 4 3
      board/br4/config.mk
  28. 4 3
      board/cm-bf527/config.mk
  29. 4 3
      board/cm-bf533/config.mk
  30. 4 3
      board/cm-bf537e/config.mk
  31. 4 3
      board/cm-bf537u/config.mk
  32. 4 3
      board/cm-bf548/config.mk
  33. 4 3
      board/cm-bf561/config.mk
  34. 4 3
      board/ip04/config.mk
  35. 1 1
      board/matrix_vision/mvblx/Makefile
  36. 4 3
      board/pr1/config.mk
  37. 1 1
      board/sandburst/karef/Makefile
  38. 1 1
      board/sandburst/metrobox/Makefile
  39. 1 1
      board/st-ericsson/snowball/Makefile
  40. 1 1
      board/st-ericsson/u8500/Makefile
  41. 4 3
      board/tcm-bf518/config.mk
  42. 4 3
      board/tcm-bf537/config.mk
  43. 3 7
      common/Makefile
  44. 2 11
      config.mk
  45. 1 1
      disk/Makefile
  46. 37 30
      doc/DocBook/Makefile
  47. 1 4
      drivers/bios_emulator/Makefile
  48. 1 1
      drivers/hwmon/Makefile
  49. 1 3
      drivers/net/npe/Makefile
  50. 1 1
      drivers/rtc/Makefile
  51. 3 4
      drivers/usb/musb-new/Makefile
  52. 1 1
      dts/Makefile
  53. 5 10
      examples/api/Makefile
  54. 13 9
      examples/standalone/Makefile
  55. 1 1
      fs/ubifs/Makefile
  56. 3 6
      fs/yaffs2/Makefile
  57. 1 1
      lib/Makefile
  58. 1 1
      lib/lzma/Makefile
  59. 5 4
      nand_spl/board/amcc/acadia/Makefile
  60. 5 4
      nand_spl/board/amcc/bamboo/Makefile
  61. 5 4
      nand_spl/board/amcc/canyonlands/Makefile
  62. 5 4
      nand_spl/board/amcc/kilauea/Makefile
  63. 5 4
      nand_spl/board/amcc/sequoia/Makefile
  64. 5 4
      nand_spl/board/freescale/mpc8315erdb/Makefile
  65. 5 4
      nand_spl/board/freescale/mpc8536ds/Makefile
  66. 5 4
      nand_spl/board/freescale/mpc8569mds/Makefile
  67. 5 4
      nand_spl/board/freescale/mpc8572ds/Makefile
  68. 5 4
      nand_spl/board/freescale/p1023rds/Makefile
  69. 5 4
      nand_spl/board/freescale/p1_p2_rdb/Makefile
  70. 5 4
      nand_spl/board/sheldon/simpc8313/Makefile
  71. 1 1
      net/Makefile
  72. 14 15
      post/lib_powerpc/fpu/Makefile
  73. 1 1
      scripts/Kbuild.include
  74. 19 3
      scripts/Makefile.build
  75. 8 6
      scripts/Makefile.lib
  76. 15 12
      spl/Makefile
  77. 9 14
      tools/Makefile

+ 200 - 39
Makefile

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

+ 1 - 1
arch/arm/imx-common/Makefile

@@ -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 \

+ 2 - 3
arch/blackfin/cpu/Makefile

@@ -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 $@

+ 4 - 1
arch/blackfin/lib/Makefile

@@ -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

+ 1 - 1
arch/m68k/cpu/mcf5227x/Makefile

@@ -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

+ 1 - 1
arch/m68k/cpu/mcf523x/Makefile

@@ -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

+ 1 - 1
arch/m68k/cpu/mcf52x2/Makefile

@@ -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

+ 1 - 1
arch/m68k/cpu/mcf532x/Makefile

@@ -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

+ 1 - 1
arch/m68k/cpu/mcf5445x/Makefile

@@ -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

+ 1 - 1
arch/m68k/cpu/mcf547x_8x/Makefile

@@ -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

+ 1 - 1
arch/powerpc/cpu/mpc8xx/Makefile

@@ -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

+ 2 - 2
arch/powerpc/lib/Makefile

@@ -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

+ 7 - 4
arch/sandbox/cpu/Makefile

@@ -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)

+ 4 - 3
board/bct-brettl2/config.mk

@@ -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

+ 4 - 3
board/bf518f-ezbrd/config.mk

@@ -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

+ 4 - 3
board/bf526-ezbrd/config.mk

@@ -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

+ 4 - 3
board/bf527-ad7160-eval/config.mk

@@ -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

+ 4 - 3
board/bf527-ezkit/config.mk

@@ -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

+ 4 - 3
board/bf527-sdp/config.mk

@@ -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

+ 4 - 3
board/bf533-ezkit/config.mk

@@ -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

+ 4 - 3
board/bf533-stamp/config.mk

@@ -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

+ 4 - 3
board/bf537-stamp/config.mk

@@ -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

+ 4 - 3
board/bf538f-ezkit/config.mk

@@ -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

+ 4 - 3
board/bf548-ezkit/config.mk

@@ -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

+ 4 - 3
board/bf561-acvilon/config.mk

@@ -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

+ 4 - 3
board/bf561-ezkit/config.mk

@@ -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

+ 4 - 3
board/br4/config.mk

@@ -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

+ 4 - 3
board/cm-bf527/config.mk

@@ -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

+ 4 - 3
board/cm-bf533/config.mk

@@ -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

+ 4 - 3
board/cm-bf537e/config.mk

@@ -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

+ 4 - 3
board/cm-bf537u/config.mk

@@ -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

+ 4 - 3
board/cm-bf548/config.mk

@@ -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

+ 4 - 3
board/cm-bf561/config.mk

@@ -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

+ 4 - 3
board/ip04/config.mk

@@ -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

+ 1 - 1
board/matrix_vision/mvblx/Makefile

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

+ 4 - 3
board/pr1/config.mk

@@ -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

+ 1 - 1
board/sandburst/karef/Makefile

@@ -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

+ 1 - 1
board/sandburst/metrobox/Makefile

@@ -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

+ 1 - 1
board/st-ericsson/snowball/Makefile

@@ -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

+ 1 - 1
board/st-ericsson/u8500/Makefile

@@ -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

+ 4 - 3
board/tcm-bf518/config.mk

@@ -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

+ 4 - 3
board/tcm-bf537/config.mk

@@ -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

+ 3 - 7
common/Makefile

@@ -238,10 +238,6 @@ 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)

+ 2 - 11
config.mk

@@ -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

+ 1 - 1
disk/Makefile

@@ -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

+ 37 - 30
doc/DocBook/Makefile

@@ -24,9 +24,9 @@ PS_METHOD	= $(prefer-db2x)
 
 ###
 # The targets that may be used.
-PHONY += $(obj).depend xmldocs sgmldocs psdocs pdfdocs htmldocs mandocs installmandocs cleandocs
+PHONY += xmldocs sgmldocs psdocs pdfdocs htmldocs mandocs installmandocs cleandocs
 
-BOOKS := $(addprefix $(OBJTREE)/doc/DocBook/,$(DOCBOOKS))
+BOOKS := $(addprefix $(obj)/,$(DOCBOOKS))
 xmldocs: $(BOOKS)
 sgmldocs: xmldocs
 
@@ -51,10 +51,10 @@ installmandocs: mandocs
 
 ###
 #External programs used
-KERNELDOC = $(SRCTREE)/tools/kernel-doc/kernel-doc
-DOCPROC   = $(OBJTREE)/tools/kernel-doc/docproc
+KERNELDOC = $(srctree)/tools/kernel-doc/kernel-doc
+DOCPROC   = $(objtree)/tools/kernel-doc/docproc
 
-XMLTOFLAGS = -m $(SRCTREE)/doc/DocBook/stylesheet.xsl
+XMLTOFLAGS = -m $(srctree)/doc/DocBook/stylesheet.xsl
 XMLTOFLAGS += --skip-validation
 
 ###
@@ -64,28 +64,36 @@ XMLTOFLAGS += --skip-validation
 #     appropriate parameters.
 # The following rules are used to generate the .xml documentation
 # required to generate the final targets. (ps, pdf, html).
-%.xml: %.tmpl
-	$(DOCPROC) doc $< >$@
-
-ifeq ($@, "cleandocs")
-sinclude $(obj).depend
-$(obj).depend: $(patsubst %.xml, %.tmpl, $(DOCBOOKS))
-	rm -f $(obj).depend ;					\
-	touch $(obj).depend ;					\
-	for file in $^ ; do					\
-		xmlfile=`echo "$${file}" |			\
-			sed "s/tmpl$$/xml/"` ;			\
-		echo -n "$${xmlfile}: ">> $(obj).depend ;	\
-		$(DOCPROC) depend $$file >> $(obj).depend ;	\
-		echo -e "\n\t$(DOCPROC) doc $< >$${xmlfile} " >>	\
-			$(obj).depend ;				\
-	done
+quiet_cmd_docproc = DOCPROC $@
+      cmd_docproc = SRCTREE=$(srctree)/ $(DOCPROC) doc $< >$@
+define rule_docproc
+	set -e;								\
+        $(if $($(quiet)cmd_$(1)),echo '  $($(quiet)cmd_$(1))';) 	\
+        $(cmd_$(1)); 							\
+        ( 								\
+          echo 'cmd_$@ := $(cmd_$(1))'; 				\
+          echo $@: `SRCTREE=$(srctree) $(DOCPROC) depend $<`; 		\
+        ) > $(dir $@).$(notdir $@).cmd
+endef
+
+%.xml: %.tmpl FORCE
+	$(call if_changed_rule,docproc)
+
+###
+#Read in all saved dependency files
+cmd_files := $(wildcard $(foreach f,$(BOOKS),$(dir $(f)).$(notdir $(f)).cmd))
+
+ifneq ($(cmd_files),)
+  include $(cmd_files)
 endif
 
 ###
 # Changes in kernel-doc force a rebuild of all documentation
 $(BOOKS): $(KERNELDOC)
 
+# Tell kbuild to always build the programs
+always := $(hostprogs-y)
+
 notfoundtemplate = echo "*** You have to install docbook-utils or xmlto ***"; \
 		   exit 1
 db2xtemplate = db2TYPE -o $(dir $@) $<
@@ -111,12 +119,12 @@ endif
 quiet_cmd_db2ps = PS      $@
       cmd_db2ps = $(subst TYPE,ps, $($(PS_METHOD)template))
 %.ps : %.xml
-	$(call cmd_db2ps)
+	$(call cmd,db2ps)
 
 quiet_cmd_db2pdf = PDF     $@
       cmd_db2pdf = $(subst TYPE,pdf, $($(PDF_METHOD)template))
 %.pdf : %.xml
-	$(call cmd_db2pdf)
+	$(call cmd,db2pdf)
 
 
 index = index.html
@@ -132,16 +140,16 @@ build_main_index = rm -rf $(main_idx); \
 quiet_cmd_db2html = HTML    $@
       cmd_db2html = xmlto html $(XMLTOFLAGS) -o $(patsubst %.html,%,$@) $< && \
 		echo '<a HREF="$(patsubst %.html,%,$(notdir $@))/index.html"> \
-	$(patsubst %.html,%,$(notdir $@))</a><p>' > $@
+        $(patsubst %.html,%,$(notdir $@))</a><p>' > $@
 
 %.html:	%.xml
 	@(which xmlto > /dev/null 2>&1) || \
 	 (echo "*** You need to install xmlto ***"; \
 	  exit 1)
 	@rm -rf $@ $(patsubst %.html,%,$@)
-	$(call cmd_db2html)
+	$(call cmd,db2html)
 	@if [ ! -z "$(PNG-$(basename $(notdir $@)))" ]; then \
-	    cp $(PNG-$(basename $(notdir $@))) $(patsubst %.html,%,$@); fi
+            cp $(PNG-$(basename $(notdir $@))) $(patsubst %.html,%,$@); fi
 
 quiet_cmd_db2man = MAN     $@
       cmd_db2man = if grep -q refentry $<; then xmlto man $(XMLTOFLAGS) -o $(obj)/man $< ; gzip -f $(obj)/man/*.9; fi
@@ -150,7 +158,7 @@ quiet_cmd_db2man = MAN     $@
 	 (echo "*** You need to install xmlto ***"; \
 	  exit 1)
 	$(Q)mkdir -p $(obj)/man
-	$(call cmd_db2man)
+	$(call cmd,db2man)
 	@touch $@
 
 ###
@@ -162,7 +170,7 @@ quiet_cmd_fig2eps = FIG2EPS $@
 	@(which fig2dev > /dev/null 2>&1) || \
 	 (echo "*** You need to install transfig ***"; \
 	  exit 1)
-	$(call cmd_fig2eps)
+	$(call cmd,fig2eps)
 
 quiet_cmd_fig2png = FIG2PNG $@
       cmd_fig2png = fig2dev -Lpng $< $@
@@ -171,7 +179,7 @@ quiet_cmd_fig2png = FIG2PNG $@
 	@(which fig2dev > /dev/null 2>&1) || \
 	 (echo "*** You need to install transfig ***"; \
 	  exit 1)
-	$(call cmd_fig2png)
+	$(call cmd,fig2png)
 
 ###
 # Rule to convert a .c file to inline XML documentation
@@ -217,7 +225,6 @@ clean-files := $(DOCBOOKS) \
 clean-dirs := $(patsubst %.xml,%,$(DOCBOOKS)) man
 
 cleandocs:
-	@rm -f $(obj).depend
 	@$(Q)rm -f $(call objectify, $(clean-files))
 	@$(Q)rm -rf $(call objectify, $(clean-dirs))
 

+ 1 - 4
drivers/bios_emulator/Makefile

@@ -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)

+ 1 - 1
drivers/hwmon/Makefile

@@ -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

+ 1 - 3
drivers/net/npe/Makefile

@@ -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 \

+ 1 - 1
drivers/rtc/Makefile

@@ -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

+ 3 - 4
drivers/usb/musb-new/Makefile

@@ -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)

+ 1 - 1
dts/Makefile

@@ -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.

+ 5 - 10
examples/api/Makefile

@@ -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)

+ 13 - 9
examples/standalone/Makefile

@@ -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)

+ 1 - 1
fs/ubifs/Makefile

@@ -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)

+ 3 - 6
fs/yaffs2/Makefile

@@ -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

+ 1 - 1
lib/Makefile

@@ -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)

+ 1 - 1
lib/lzma/Makefile

@@ -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

+ 5 - 4
nand_spl/board/amcc/acadia/Makefile

@@ -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
 

+ 5 - 4
nand_spl/board/amcc/bamboo/Makefile

@@ -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
 

+ 5 - 4
nand_spl/board/amcc/canyonlands/Makefile

@@ -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
 

+ 5 - 4
nand_spl/board/amcc/kilauea/Makefile

@@ -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	= 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))
 __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
 

+ 5 - 4
nand_spl/board/amcc/sequoia/Makefile

@@ -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	= 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))
 __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
 

+ 5 - 4
nand_spl/board/freescale/mpc8315erdb/Makefile

@@ -13,18 +13,19 @@ nandobj	:= $(OBJTREE)/nand_spl/
 LDSCRIPT= $(TOPDIR)/nand_spl/board/$(BOARDDIR)/u-boot.lds
 LDFLAGS := -T $(nandobj)u-boot.lds -Ttext $(CONFIG_SYS_TEXT_BASE_SPL) \
 	   $(LDFLAGS) $(LDFLAGS_FINAL)
-AFLAGS	+= -DCONFIG_NAND_SPL
-CFLAGS	+= -DCONFIG_NAND_SPL
+asflags-y += -DCONFIG_NAND_SPL
+ccflags-y += -DCONFIG_NAND_SPL
 
 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))
 __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
@@ -38,7 +39,7 @@ $(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
 

+ 5 - 4
nand_spl/board/freescale/mpc8536ds/Makefile

@@ -15,18 +15,19 @@ nandobj	:= $(OBJTREE)/nand_spl/
 LDSCRIPT= $(TOPDIR)/$(CPUDIR)/u-boot-nand_spl.lds
 LDFLAGS := -T $(nandobj)u-boot-nand_spl.lds -Ttext $(CONFIG_SYS_TEXT_BASE_SPL) \
 		$(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
 COBJS	= cache.o cpu_init_early.o spl_minimal.o fsl_law.o law.o \
 	  nand_boot.o nand_boot_fsl_elbc.o ns16550.o tlb.o tlb_table.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
@@ -40,7 +41,7 @@ $(nandobj)u-boot-spl:	$(OBJS) $(nandobj)u-boot-nand_spl.lds
 		-Map $(nandobj)u-boot-spl.map -o $@
 
 $(nandobj)u-boot-nand_spl.lds: $(LDSCRIPT)
-	$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -I$(nandobj)/board/$(BOARDDIR) \
+	$(CPP) $(cpp_flags) $(LDPPFLAGS) -I$(nandobj)/board/$(BOARDDIR) \
 		-ansi -D__ASSEMBLY__ -P - <$< >$@
 
 # create symbolic links for common files

+ 5 - 4
nand_spl/board/freescale/mpc8569mds/Makefile

@@ -15,18 +15,19 @@ nandobj	:= $(OBJTREE)/nand_spl/
 LDSCRIPT= $(TOPDIR)/$(CPUDIR)/u-boot-nand_spl.lds
 LDFLAGS := -T $(nandobj)u-boot-nand_spl.lds -Ttext $(CONFIG_SYS_TEXT_BASE_SPL) \
 		$(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
 COBJS	= cache.o cpu_init_early.o spl_minimal.o fsl_law.o law.o \
 	  nand_boot.o nand_boot_fsl_elbc.o ns16550.o tlb.o tlb_table.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
@@ -40,7 +41,7 @@ $(nandobj)u-boot-spl:	$(OBJS) $(nandobj)u-boot-nand_spl.lds
 		-Map $(nandobj)u-boot-spl.map -o $@
 
 $(nandobj)u-boot-nand_spl.lds: $(LDSCRIPT)
-	$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -I$(nandobj)/board/$(BOARDDIR) \
+	$(CPP) $(cpp_flags) $(LDPPFLAGS) -I$(nandobj)/board/$(BOARDDIR) \
 		-ansi -D__ASSEMBLY__ -P - <$< >$@
 
 # create symbolic links for common files

+ 5 - 4
nand_spl/board/freescale/mpc8572ds/Makefile

@@ -15,18 +15,19 @@ nandobj	:= $(OBJTREE)/nand_spl/
 LDSCRIPT= $(TOPDIR)/$(CPUDIR)/u-boot-nand_spl.lds
 LDFLAGS := -T $(nandobj)u-boot-nand_spl.lds -Ttext $(CONFIG_SYS_TEXT_BASE_SPL) \
 		$(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
 COBJS	= cache.o cpu_init_early.o spl_minimal.o fsl_law.o law.o \
 	  nand_boot.o nand_boot_fsl_elbc.o ns16550.o tlb.o tlb_table.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
@@ -40,7 +41,7 @@ $(nandobj)u-boot-spl:	$(OBJS) $(nandobj)u-boot-nand_spl.lds
 		-Map $(nandobj)u-boot-spl.map -o $@
 
 $(nandobj)u-boot-nand_spl.lds: $(LDSCRIPT)
-	$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -I$(nandobj)/board/$(BOARDDIR) \
+	$(CPP) $(cpp_flags) $(LDPPFLAGS) -I$(nandobj)/board/$(BOARDDIR) \
 		-ansi -D__ASSEMBLY__ -P - <$< >$@
 
 # create symbolic links for common files

+ 5 - 4
nand_spl/board/freescale/p1023rds/Makefile

@@ -11,18 +11,19 @@ nandobj	:= $(OBJTREE)/nand_spl/
 LDSCRIPT= $(TOPDIR)/$(CPUDIR)/u-boot-nand_spl.lds
 LDFLAGS := -T $(nandobj)u-boot-nand_spl.lds -Ttext $(CONFIG_SYS_TEXT_BASE_SPL) \
 		$(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
 COBJS	= cache.o cpu_init_early.o spl_minimal.o fsl_law.o law.o \
 	  nand_boot.o nand_boot_fsl_elbc.o ns16550.o tlb.o tlb_table.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-nand_spl.lds
 		-Map $(nandobj)u-boot-spl.map -o $@
 
 $(nandobj)u-boot-nand_spl.lds: $(LDSCRIPT)
-	$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -I$(nandobj)/board/$(BOARDDIR) \
+	$(CPP) $(cpp_flags) $(LDPPFLAGS) -I$(nandobj)/board/$(BOARDDIR) \
 		-ansi -D__ASSEMBLY__ -P - <$< >$@
 
 # create symbolic links for common files

+ 5 - 4
nand_spl/board/freescale/p1_p2_rdb/Makefile

@@ -15,18 +15,19 @@ nandobj	:= $(OBJTREE)/nand_spl/
 LDSCRIPT= $(TOPDIR)/$(CPUDIR)/u-boot-nand_spl.lds
 LDFLAGS := -T $(nandobj)u-boot-nand_spl.lds -Ttext $(CONFIG_SYS_TEXT_BASE_SPL) \
 		$(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
 COBJS	= cache.o cpu_init_early.o spl_minimal.o fsl_law.o law.o \
 	  nand_boot.o nand_boot_fsl_elbc.o ns16550.o tlb.o tlb_table.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
@@ -40,7 +41,7 @@ $(nandobj)u-boot-spl:	$(OBJS) $(nandobj)u-boot-nand_spl.lds
 		-Map $(nandobj)u-boot-spl.map -o $@
 
 $(nandobj)u-boot-nand_spl.lds: $(LDSCRIPT)
-	$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -I$(nandobj)/board/$(BOARDDIR) \
+	$(CPP) $(cpp_flags) $(LDPPFLAGS) -I$(nandobj)/board/$(BOARDDIR) \
 		-ansi -D__ASSEMBLY__ -P - <$< >$@
 
 # create symbolic links for common files

+ 5 - 4
nand_spl/board/sheldon/simpc8313/Makefile

@@ -12,18 +12,19 @@ nandobj	:= $(OBJTREE)/nand_spl/
 LDSCRIPT= $(TOPDIR)/nand_spl/board/$(BOARDDIR)/u-boot.lds
 LDFLAGS := -T $(nandobj)u-boot.lds -Ttext $(CONFIG_SYS_TEXT_BASE_SPL) \
 	   $(LDFLAGS) $(LDFLAGS_FINAL)
-AFLAGS	+= -DCONFIG_NAND_SPL
-CFLAGS	+= -DCONFIG_NAND_SPL
+asflags-y += -DCONFIG_NAND_SPL
+ccflags-y += -DCONFIG_NAND_SPL
 
 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))
 __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
@@ -37,7 +38,7 @@ $(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
 

+ 1 - 1
net/Makefile

@@ -5,7 +5,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-# CFLAGS += -DDEBUG
+#ccflags-y += -DDEBUG
 
 obj-$(CONFIG_CMD_NET)  += arp.o
 obj-$(CONFIG_CMD_NET)  += bootp.o

+ 14 - 15
post/lib_powerpc/fpu/Makefile

@@ -5,20 +5,19 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-obj-y	+= 20001122-1.o
-obj-y	+= 20010114-2.o
-obj-y	+= 20010226-1.o
-obj-y	+= 980619-1.o
-obj-y	+= acc1.o
-obj-y	+= compare-fp-1.o
-obj-y	+= fpu.o
-obj-y	+= mul-subnormal-single-1.o
-obj-y	+= darwin-ldouble.o
+objs-before-objcopy := 20001122-1.o 20010114-2.o 20010226-1.o 980619-1.o \
+	acc1.o compare-fp-1.o fpu.o mul-subnormal-single-1.o darwin-ldouble.o
+targets += $(objs-before-objcopy)
 
-CFLAGS := $(shell echo $(CFLAGS) | sed s/-msoft-float//)
-CFLAGS += -mhard-float -fkeep-inline-functions
+# remove -msoft-float flag
+$(foreach m, $(objs-before-objcopy), $(eval CFLAGS_REMOVE_$m := -msoft-float))
+ccflags-y := -mhard-float -fkeep-inline-functions
 
-$(addprefix $(obj)/,$(obj-y)): $(obj)/%.o: $(src)/%.c
-	$(CC)  $(ALL_CFLAGS) -o $@.fp $< -c
-	$(OBJCOPY) -R .gnu.attributes $@.fp $@
-	rm -f $@.fp
+# Do not delete intermidiate files (*.o)
+.SECONDARY: $(call objectify, $(objs-before-objcopy))
+
+obj-y := $(objs-before-objcopy:.o=_.o)
+
+OBJCOPYFLAGS := -R .gnu.attributes
+$(obj)/%_.o: $(obj)/%.o
+	$(call if_changed,objcopy)

+ 1 - 1
scripts/Kbuild.include

@@ -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.tmp obj
+build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build obj
 
 ###
 # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.modbuiltin obj=

+ 19 - 3
scripts/Makefile.build

@@ -2,7 +2,16 @@
 # Building
 # ==========================================================================
 
-src := $(obj)
+# Modified for U-Boot
+ifeq ($(CONFIG_TPL_BUILD),y)
+  src := $(patsubst tpl/%,%,$(obj))
+else
+  ifeq ($(CONFIG_SPL_BUILD),y)
+    src := $(patsubst spl/%,%,$(obj))
+  else
+    src := $(obj)
+  endif
+endif
 
 PHONY := __build
 __build:
@@ -35,6 +44,11 @@ subdir-ccflags-y :=
 
 include scripts/Kbuild.include
 
+# Added for U-Boot
+# We must include config.mk after Kbuild.include
+# so that some config.mk can use cc-option.
+include config.mk
+
 # For backward compatibility check that these variables do not change
 save-cflags := $(CFLAGS)
 
@@ -115,14 +129,16 @@ ifneq ($(hostprogs-y)$(hostprogs-m),)
 include scripts/Makefile.host
 endif
 
-ifneq ($(KBUILD_SRC),)
+# Uncommented for U-Boot
+#  We need to create output dicrectory for SPL and TPL even for in-tree build
+#ifneq ($(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
+#endif
 
 ifndef obj
 $(warning kbuild: Makefile.build is included improperly)

+ 8 - 6
scripts/Makefile.lib

@@ -101,12 +101,13 @@ basename_flags = -D"KBUILD_BASENAME=KBUILD_STR($(call name-fix,$(basetarget)))"
 modname_flags  = $(if $(filter 1,$(words $(modname))),\
                  -D"KBUILD_MODNAME=KBUILD_STR($(call name-fix,$(modname)))")
 
-orig_c_flags   = $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(KBUILD_SUBDIR_CCFLAGS) \
+# U-Boot also uses $(CPPFLAGS)
+orig_c_flags   = $(KBUILD_CPPFLAGS) $(CPPFLAGS) $(KBUILD_CFLAGS) $(KBUILD_SUBDIR_CCFLAGS) \
                  $(ccflags-y) $(CFLAGS_$(basetarget).o)
 _c_flags       = $(filter-out $(CFLAGS_REMOVE_$(basetarget).o), $(orig_c_flags))
-_a_flags       = $(KBUILD_CPPFLAGS) $(KBUILD_AFLAGS) $(KBUILD_SUBDIR_ASFLAGS) \
+_a_flags       = $(KBUILD_CPPFLAGS) $(CPPFLAGS) $(KBUILD_AFLAGS) $(KBUILD_SUBDIR_ASFLAGS) \
                  $(asflags-y) $(AFLAGS_$(basetarget).o)
-_cpp_flags     = $(KBUILD_CPPFLAGS) $(cppflags-y) $(CPPFLAGS_$(@F))
+_cpp_flags     = $(KBUILD_CPPFLAGS) $(CPPFLAGS) $(cppflags-y) $(CPPFLAGS_$(@F))
 
 #
 # Enable gcov profiling flags for a file, directory or for all files depending
@@ -137,14 +138,15 @@ __a_flags	=                          $(call flags,_a_flags)
 __cpp_flags     =                          $(call flags,_cpp_flags)
 endif
 
-c_flags        = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE)     \
+# Modified for U-Boot: LINUXINCLUDE -> UBOOTINCLUDE
+c_flags        = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE)     \
 		 $(__c_flags) $(modkern_cflags)                           \
 		 -D"KBUILD_STR(s)=\#s" $(basename_flags) $(modname_flags)
 
-a_flags        = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE)     \
+a_flags        = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE)     \
 		 $(__a_flags) $(modkern_aflags)
 
-cpp_flags      = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE)     \
+cpp_flags      = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE)     \
 		 $(__cpp_flags)
 
 ld_flags       = $(LDFLAGS) $(ldflags-y)

+ 15 - 12
spl/Makefile

@@ -106,8 +106,7 @@ LIBS-y := $(patsubst %/, %/built-in.o, $(LIBS-y))
 
 # Add GCC lib
 ifeq ("$(USE_PRIVATE_LIBGCC)", "yes")
-PLATFORM_LIBGCC = $(SPLTREE)/arch/$(ARCH)/lib/libgcc.o
-PLATFORM_LIBS := $(filter-out %/libgcc.o, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
+PLATFORM_LIBS := $(SPLTREE)/arch/$(ARCH)/lib/lib.a
 endif
 
 LIBS-y := $(sort $(LIBS-y))
@@ -155,7 +154,7 @@ $(OBJTREE)/MLO.byteswap: $(obj)/u-boot-spl.bin
 	$(OBJTREE)/tools/mkimage -T omapimage -n byteswap \
 		-a $(CONFIG_SPL_TEXT_BASE) -d $< $@
 
-$(objtree)/SPL : $(obj)/u-boot-spl.bin depend
+$(objtree)/SPL : $(obj)/u-boot-spl.bin
 		$(MAKE) $(build)=spl/arch/arm/imx-common $@
 
 ALL-y	+= $(obj)/$(SPL_BIN).bin
@@ -191,20 +190,24 @@ GEN_UBOOT = \
 		--start-group $(__LIBS) --end-group $(PLATFORM_LIBS) \
 		-Map $(SPL_BIN).map -o $(SPL_BIN)
 
-$(obj)/$(SPL_BIN):	depend $(START) $(LIBS) $(obj)/u-boot-spl.lds
+$(obj)/$(SPL_BIN): $(START) $(LIBS) $(obj)/u-boot-spl.lds
 	$(GEN_UBOOT)
 
 $(START):
 	@:
 
-$(LIBS):	depend
-	$(MAKE) $(build)=$(patsubst %/,%,$(dir $@))
+$(LIBS):
+	$(Q)$(MAKE) $(build)=$(patsubst %/,%,$(dir $@))
 
-$(obj)/u-boot-spl.lds: $(LDSCRIPT) depend
-	$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -I$(obj). -ansi -D__ASSEMBLY__ -P - < $< > $@
+# FIX ME
+cpp_flags := $(KBUILD_CPPFLAGS) $(CPPFLAGS) $(UBOOTINCLUDE) $(NOSTDINC_FLAGS)
 
-depend:	$(obj)/.depend
-.PHONY: depend
+$(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE
+	$(CPP) $(cpp_flags) $(LDPPFLAGS) -I$(obj). -ansi -D__ASSEMBLY__ -P - < $< > $@
 
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
+PHONY += FORCE
+FORCE:
+
+# Declare the contents of the .PHONY variable as phony.  We keep that
+# information in a variable so we can use it in if_changed and friends.
+.PHONY: $(PHONY)

+ 9 - 14
tools/Makefile

@@ -40,19 +40,19 @@ hostprogs-$(CONFIG_CMD_LICENSE) += bin2header$(SFX)
 
 hostprogs-$(CONFIG_LCD_LOGO) += bmp_logo$(SFX)
 hostprogs-$(CONFIG_VIDEO_LOGO) += bmp_logo$(SFX)
-HOSTCFLAGS_bmp_logo$(SFX) := -pedantic
+HOSTCFLAGS_bmp_logo$(SFX).o := -pedantic
 
 hostprogs-$(CONFIG_BUILD_ENVCRC) += envcrc$(SFX)
 envcrc$(SFX)-objs := crc32.o env_embedded.o envcrc.o sha1.o
 
 hostprogs-$(CONFIG_CMD_NET) += gen_eth_addr$(SFX)
-HOSTCFLAGS_gen_eth_addr$(SFX) := -pedantic
+HOSTCFLAGS_gen_eth_addr$(SFX).o := -pedantic
 
 hostprogs-$(CONFIG_CMD_LOADS) += img2srec$(SFX)
-HOSTCFLAGS_img2srec$(SFX) := -pedantic
+HOSTCFLAGS_img2srec$(SFX).o := -pedantic
 
 hostprogs-$(CONFIG_XWAY_SWAP_BYTES) += xway-swap-bytes$(SFX)
-HOSTCFLAGS_xway-swap-bytes$(SFX) := -pedantic
+HOSTCFLAGS_xway-swap-bytes$(SFX).o := -pedantic
 
 hostprogs-y += mkenvimage$(SFX)
 mkenvimage$(SFX)-objs := crc32.o mkenvimage.o os_support.o
@@ -97,7 +97,7 @@ HOSTLOADLIBES_dumpimage$(SFX) := -lssl -lcrypto
 HOSTLOADLIBES_mkimage$(SFX) := -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
+HOSTCFLAGS_mxsimage.o += -DCONFIG_MXS
 endif
 
 ifdef CONFIG_FIT_SIGNATURE
@@ -111,11 +111,11 @@ endif
 
 hostprogs-$(CONFIG_EXYNOS5250) += mkexynosspl$(SFX)
 hostprogs-$(CONFIG_EXYNOS5420) += mkexynosspl$(SFX)
-HOSTCFLAGS_mkexynosspl$(SFX) := -pedantic
+HOSTCFLAGS_mkexynosspl$(SFX).o := -pedantic
 
 hostprogs-$(CONFIG_MX23) += mxsboot$(SFX)
 hostprogs-$(CONFIG_MX28) += mxsboot$(SFX)
-HOSTCFLAGS_mxsboot$(SFX) := -pedantic
+HOSTCFLAGS_mxsboot$(SFX).o := -pedantic
 
 hostprogs-$(CONFIG_NETCONSOLE) += ncb$(SFX)
 hostprogs-$(CONFIG_SHA1_CHECK_UB_IMG) += ubsha1$(SFX)
@@ -137,7 +137,7 @@ HOSTCFLAGS_sha1.o := -pedantic
 
 # Don't build by default
 #hostprogs-$(CONFIG_PPC) += mpc86x_clk$(SFX)
-#HOSTCFLAGS_mpc86x_clk$(SFX) := -pedantic
+#HOSTCFLAGS_mpc86x_clk$(SFX).o := -pedantic
 
 always := $(hostprogs-y)
 
@@ -164,11 +164,6 @@ endif
 
 endif # !LOGO_BMP
 
-# now $(obj) is defined
-HOSTSRCS += $(addprefix $(SRCTREE)/,$(EXT_OBJ_FILES-y:.o=.c))
-HOSTSRCS += $(addprefix $(SRCTREE)/tools/,$(OBJ_FILES-y:.o=.c))
-HOSTSRCS += $(addprefix $(SRCTREE)/lib/libfdt/,$(LIBFDT_OBJ_FILES-y:.o=.c))
-
 #
 # Use native tools and options
 # Define __KERNEL_STRICT_NAMES to prevent typedef overlaps
@@ -183,7 +178,7 @@ HOST_EXTRACFLAGS += -include $(SRCTREE)/include/libfdt_env.h \
 		-D__KERNEL_STRICT_NAMES \
 		-D_GNU_SOURCE
 
-all:	$(LOGO-y)
+__build:	$(LOGO-y)
 
 subdir-y := kernel-doc