From 6825a95b0ba72c4e5667d02d8b31986e2e9abd5a Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Tue, 4 Feb 2014 17:24:28 +0900 Subject: 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 Tested-by: Gerhard Sittig --- arch/sandbox/cpu/Makefile | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) (limited to 'arch/sandbox/cpu') diff --git a/arch/sandbox/cpu/Makefile b/arch/sandbox/cpu/Makefile index c5f5426b05..63dededf70 100644 --- a/arch/sandbox/cpu/Makefile +++ b/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) -- cgit v1.2.1