[PATCH] arch/aarch64: Add aarch64 support
Yann E. MORIN
yann.morin.1998@free.fr
Mon Dec 30 22:08:00 GMT 2013
Zhenqiang, All,
On 2013-12-17 10:12 +0800, Zhenqiang Chen spake thusly:
> # HG changeset patch
> # User Zhenqiang Chen <zhenqiang.chen@linaro.org>
> # Date 1387172069 -28800
> # Node ID 2cdf83834419f2918e36f7eae5915aa32c3254b6
> # Parent 032ebcc89c96f29873070f2d9af6a0260cf2e40e
> arch/aarch64: Add aarch64 support
I think it'd be better if that was added as the 64-bit variant for the
ARM architecture.
But that would first need that:
- we define CT_LINUX_ARCH globally, default to CT_ARCH
- we add the 64-bit variant to both arn.in and arm.sh
I'll handle this.
I guess this requires very recent versions of gcc/binutils/glibc, right?
Thanks for the submission! :-)
Regards,
Yann E. MORIN.
> Signed-off-by: Michael Hope <michael.hope@linaro.org>
> Signed-off-by: Zhenqiang Chen <zhenqiang.chen@linaro.org>
>
> diff -r 032ebcc89c96 -r 2cdf83834419 config/arch/aarch64.in
> --- /dev/null Thu Jan 01 00:00:00 1970 +0000
> +++ b/config/arch/aarch64.in Mon Dec 16 13:34:29 2013 +0800
> @@ -0,0 +1,13 @@
> +# ARM AArch64 specific configuration file
> +
> +## select ARCH_SUPPORTS_64
> +## select ARCH_DEFAULT_64
> +## select ARCH_DEFAULT_HAS_MMU
> +## select ARCH_SUPPORTS_BOTH_ENDIAN
> +## select ARCH_DEFAULT_LE
> +## select ARCH_SUPPORTS_WITH_ARCH
> +## select ARCH_SUPPORTS_WITH_CPU
> +## select ARCH_SUPPORTS_WITH_TUNE
> +##
> +## help The ARM AArch64 architecture, as defined by:
> +## help http://www.arm.com/
> diff -r 032ebcc89c96 -r 2cdf83834419 scripts/build/arch/aarch64.sh
> --- /dev/null Thu Jan 01 00:00:00 1970 +0000
> +++ b/scripts/build/arch/aarch64.sh Mon Dec 16 13:34:29 2013 +0800
> @@ -0,0 +1,11 @@
> +# Compute ARM-specific values
> +
> +CT_DoArchTupleValues() {
> + # The architecture part of the tuple:
> + [ "${CT_ARCH_BE}" = "y" ] && target_endian_eb="_be"
> + CT_TARGET_ARCH="${CT_ARCH}${target_endian_eb}"
> + CT_ARCH_WITH_FLOAT=
> + CT_ARCH_FLOAT_CFLAG=
> + # On Linux the architecture is arm64
> + CT_LINUX_ARCH=arm64
> +}
> diff -r 032ebcc89c96 -r 2cdf83834419 scripts/build/kernel/linux.sh
> --- a/scripts/build/kernel/linux.sh Fri Nov 22 00:34:49 2013 +0100
> +++ b/scripts/build/kernel/linux.sh Mon Dec 16 13:34:29 2013 +0800
> @@ -97,6 +97,7 @@
> # Install kernel headers using headers_install from kernel sources.
> do_kernel_install() {
> local kernel_path
> + local arch=${CT_LINUX_ARCH:-${CT_ARCH}}
>
> CT_DoLog DEBUG "Using kernel's headers_install"
>
> @@ -112,7 +113,7 @@
> CT_DoExecLog ALL \
> make -C "${kernel_path}" \
> O="${CT_BUILD_DIR}/build-kernel-headers" \
> - ARCH=${CT_ARCH} \
> + ARCH=${arch} \
> INSTALL_HDR_PATH="${CT_SYSROOT_DIR}/usr" \
> ${V_OPT} \
> headers_install
> @@ -122,7 +123,7 @@
> CT_DoExecLog ALL \
> make -C "${kernel_path}" \
> O="${CT_BUILD_DIR}/build-kernel-headers" \
> - ARCH=${CT_ARCH} \
> + ARCH=${arch} \
> INSTALL_HDR_PATH="${CT_SYSROOT_DIR}/usr" \
> ${V_OPT} \
> headers_check
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