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authorMasahiro Yamada <yamada.m@jp.panasonic.com>2014-02-04 17:24:28 +0900
committerTom Rini <trini@ti.com>2014-02-19 11:07:50 -0500
commit6825a95b0ba72c4e5667d02d8b31986e2e9abd5a (patch)
treef4c6e81fa45afba6662781eeee3f32b11f0b090d /arch/blackfin
parent22433fc54b19b0578c43a9983fa45f22ca262a0f (diff)
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>
Diffstat (limited to 'arch/blackfin')
-rw-r--r--arch/blackfin/cpu/Makefile5
-rw-r--r--arch/blackfin/lib/Makefile5
2 files changed, 6 insertions, 4 deletions
diff --git a/arch/blackfin/cpu/Makefile b/arch/blackfin/cpu/Makefile
index 369dc74e947..dd4d2d13e0e 100644
--- a/arch/blackfin/cpu/Makefile
+++ b/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 $@
diff --git a/arch/blackfin/lib/Makefile b/arch/blackfin/lib/Makefile
index a5c552f38a6..4ba7bf69493 100644
--- a/arch/blackfin/lib/Makefile
+++ b/arch/blackfin/lib/Makefile
@@ -9,7 +9,10 @@
# SPDX-License-Identifier: GPL-2.0+
#
-CFLAGS += -DBFIN_BOARD_NAME='"$(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