diff options
| author | Ofer Heifetz <oferh@marvell.com> | 2016-05-19 16:17:03 +0300 |
|---|---|---|
| committer | Thomas Petazzoni <thomas.petazzoni@free-electrons.com> | 2016-06-11 16:19:30 +0200 |
| commit | 11dd7406c8b18ba83b4e8773c76ee10c96c824fb (patch) | |
| tree | edee1437b02e3425c632237913da22581e2e0c0c /linux | |
| parent | 1008ac4406a5544ec87985db880e68377031bca9 (diff) | |
linux: align endianess based on the Buildroot configuration
The endianess of the Linux kernel should be based on BR2_ENDIAN, so that
it is automatically built for the right endianness.
Signed-off-by: Ofer Heifetz <oferh@marvell.com>
[Thomas: tweak commit message, add comment in .mk file.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Diffstat (limited to 'linux')
| -rw-r--r-- | linux/linux.mk | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/linux/linux.mk b/linux/linux.mk index fdd8421d9..a751da93b 100644 --- a/linux/linux.mk +++ b/linux/linux.mk @@ -216,6 +216,20 @@ LINUX_KCONFIG_OPTS = $(LINUX_MAKE_FLAGS) # If no package has yet set it, set it from the Kconfig option LINUX_NEEDS_MODULES ?= $(BR2_LINUX_NEEDS_MODULES) +# Make sure the Linux kernel is built with the right endianness. Not +# all architectures support +# CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN in Linux, but the +# option will be thrown away and ignored if it doesn't exist. +ifeq ($(BR2_ENDIAN),"BIG") +define LINUX_FIXUP_CONFIG_ENDIANNESS + $(call KCONFIG_ENABLE_OPT,CONFIG_CPU_BIG_ENDIAN,$(@D)/.config) +endef +else +define LINUX_FIXUP_CONFIG_ENDIANNESS + $(call KCONFIG_ENABLE_OPT,CONFIG_CPU_LITTLE_ENDIAN,$(@D)/.config) +endef +endif + define LINUX_KCONFIG_FIXUP_CMDS $(if $(LINUX_NEEDS_MODULES), $(call KCONFIG_ENABLE_OPT,CONFIG_MODULES,$(@D)/.config)) @@ -223,6 +237,7 @@ define LINUX_KCONFIG_FIXUP_CMDS $(foreach opt, $(LINUX_COMPRESSION_OPT_), $(call KCONFIG_DISABLE_OPT,$(opt),$(@D)/.config) ) + $(LINUX_FIXUP_CONFIG_ENDIANNESS) $(if $(BR2_arm)$(BR2_armeb), $(call KCONFIG_ENABLE_OPT,CONFIG_AEABI,$(@D)/.config)) $(if $(BR2_TARGET_ROOTFS_CPIO), |