Alberich - I hope the enclosed info is helpful and not just creating more confusion on this subject. I have been successfully building the RPi 3.6.11+ Kernel within the OpenWRT buildroot using the following patches (+/-)... IMMV
I also am using 4.7-linaro (4.7.1) and eglibc 2.15 (20866). /ted In target/linux/<platform>/Makefile, I set: CFLAGS:=-O2 -pipe -march=armv6 -mtune=arm1176jzf-s -mfpu=vfp -mfloat-abi=hard -marm Apply this patch to rules.mk Index: rules.mk =================================================================== --- rules.mk (revision 35642) +++ rules.mk (working copy) @@ -163,7 +163,7 @@ SOFT_FLOAT_CONFIG_OPTION:=--with-float=soft TARGET_CFLAGS+= -msoft-float else - SOFT_FLOAT_CONFIG_OPTION:= + SOFT_FLOAT_CONFIG_OPTION:=--with-float=hard endif export PATH:=$(TARGET_PATH) --------------------------------------------------------- Include this patch in the target/linux/<platform>/<kernel-patch> directory diff --git a/arch/arm/Makefile b/arch/arm/Makefile index 42d87d7..396f9f3 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -58,7 +58,7 @@ comma = , # macro, but instead defines a whole series of macros which makes # testing for a specific architecture or later rather impossible. arch-$(CONFIG_CPU_32v7) :=-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a) -arch-$(CONFIG_CPU_32v6) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6) +arch-$(CONFIG_CPU_32v6) :=-D__LINUX_ARM_ARCH__=6 -Ofast -mcpu=arm1176jzf-s -mtune=arm1176jzf-s -mfloat-abi=hard -mfpu=vfp -fomit-frame-pointer -fexcess-precision=fast # Only override the compiler option if ARMv6. The ARMv6K extensions are # always available in ARMv7 ifeq ($(CONFIG_CPU_32v6),y) @@ -113,8 +113,8 @@ endif endif # Need -Uarm for gcc < 3.x -KBUILD_CFLAGS +=$(CFLAGS_ABI) $(CFLAGS_THUMB2) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm -KBUILD_AFLAGS +=$(CFLAGS_ABI) $(AFLAGS_THUMB2) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float +KBUILD_CFLAGS +=$(CFLAGS_ABI) $(CFLAGS_THUMB2) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -Uarm +KBUILD_AFLAGS +=$(CFLAGS_ABI) $(AFLAGS_THUMB2) $(arch-y) $(tune-y) -include asm/unified.h CHECKFLAGS += -D__arm__ _______________________________________________ openwrt-devel mailing list openwrt-devel@lists.openwrt.org https://lists.openwrt.org/mailman/listinfo/openwrt-devel
