Messages in this thread Patch in this message | | | From | Yury Norov <> | Subject | [PATCH v6 02/17] arm64: ensure the kernel is compiled for LP64 | Date | Tue, 3 Nov 2015 02:30:31 +0300 |
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From: Andrew Pinski <apinski@cavium.com>
The kernel needs to be compiled as a LP64 binary for ARM64, even when using a compiler that defaults to code-generation for the ILP32 ABI. Consequently, we need to explicitly pass '-mabi=lp64' (supported on gcc-4.9 and newer).
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Signed-off-by: Christoph Muellner <christoph.muellner@theobroma-systems.com> Signed-off-by: Yury Norov <ynorov@caviumnetworks.com> Signed-off-by: Andrew Pinski <Andrew.Pinski@caviumnetworks.com> Reviewed-by: David Daney <david.daney@cavium.com> --- arch/arm64/Makefile | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile index d10b5d4..432b69a 100644 --- a/arch/arm64/Makefile +++ b/arch/arm64/Makefile @@ -29,14 +29,19 @@ endif KBUILD_CFLAGS += -mgeneral-regs-only $(lseinstr) KBUILD_AFLAGS += $(lseinstr) +KBUILD_CFLAGS += $(call cc-option,-mabi=lp64) +KBUILD_AFLAGS += $(call cc-option,-mabi=lp64) + ifeq ($(CONFIG_CPU_BIG_ENDIAN), y) KBUILD_CPPFLAGS += -mbig-endian AS += -EB LD += -EB +LDFLAGS += -maarch64linuxb else KBUILD_CPPFLAGS += -mlittle-endian AS += -EL LD += -EL +LDFLAGS += -maarch64linux endif CHECKFLAGS += -D__aarch64__ -- 2.1.4
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