[Buildroot] [PATCH v2 01/30] arch/arm: add blind options to know the ARM architecture
Yann E. MORIN
yann.morin.1998 at free.fr
Tue Oct 21 21:06:13 UTC 2014
Thomas, All,
On 2014-10-21 22:26 +0200, Thomas Petazzoni spake thusly:
> In preparation to the removal of BR2_GCC_TARGET_ARCH for ARM, this
> commit introduces a number of blind options for each ARM architecture,
> so that packages/toolchains that had dependencies using
> BR2_GCC_TARGET_ARCH can continue to express their dependencies. It can
> also be used to simplify package dependencies that were using the
> individual ARM core options.
>
> Signed-off-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
> ---
> arch/Config.in.arm | 30 ++++++++++++++++++++++++++++++
> 1 file changed, 30 insertions(+)
>
> diff --git a/arch/Config.in.arm b/arch/Config.in.arm
> index 201ff1d..5441c8d 100644
> --- a/arch/Config.in.arm
> +++ b/arch/Config.in.arm
> @@ -37,6 +37,18 @@ config BR2_ARM_CPU_HAS_THUMB
> config BR2_ARM_CPU_HAS_THUMB2
> bool
>
> +config BR2_ARM_CPU_ARMV4
> + bool
> +
> +config BR2_ARM_CPU_ARMV5
> + bool
> +
> +config BR2_ARM_CPU_ARMV6
> + bool
> +
> +config BR2_ARM_CPU_ARMV7A
> + bool
I still believe we could go with ARMV7 only, since we only have CPUs of
the A series for now.
When we add a new CPU of the M series, then we could go this route:
- add a new config option stating the CPU only has Thumb-2:
config BR2_ARM_CPU_HAS_THUMB2_ONLY
bool
or add another option:
config BR2_ARM_CPU_HAS_ARM
bool # 'y' is CPU has the ARM mode
- use it in packages that have an interest in them.
- select it from appropriate CPUs
But we can rename that option later, since it is a blind option, it will
have no incidence on defconfig or .config files. So:
Reviewed-by: "Yann E. MORIN" <yann.morin.1998 at free.fr>
Regards,
Yann E. MORIN.
> choice
> prompt "Target Architecture Variant"
> depends on BR2_arm || BR2_armeb
> @@ -47,70 +59,88 @@ choice
> config BR2_arm920t
> bool "arm920t"
> select BR2_ARM_CPU_HAS_THUMB
> + select BR2_ARM_CPU_ARMV4
> config BR2_arm922t
> bool "arm922t"
> select BR2_ARM_CPU_HAS_THUMB
> + select BR2_ARM_CPU_ARMV4
> config BR2_arm926t
> bool "arm926t"
> select BR2_ARM_CPU_MAYBE_HAS_VFPV2
> select BR2_ARM_CPU_HAS_THUMB
> + select BR2_ARM_CPU_ARMV5
> config BR2_arm1136jf_s_r0
> bool "arm1136jf_s rev0"
> select BR2_ARM_CPU_HAS_VFPV2
> select BR2_ARM_CPU_HAS_THUMB
> + select BR2_ARM_CPU_ARMV6
> config BR2_arm1136jf_s_r1
> bool "arm1136jf_s rev1"
> select BR2_ARM_CPU_HAS_VFPV2
> select BR2_ARM_CPU_HAS_THUMB
> + select BR2_ARM_CPU_ARMV6
> config BR2_arm1176jz_s
> bool "arm1176jz-s"
> select BR2_ARM_CPU_HAS_THUMB
> + select BR2_ARM_CPU_ARMV6
> config BR2_arm1176jzf_s
> bool "arm1176jzf-s"
> select BR2_ARM_CPU_HAS_VFPV2
> select BR2_ARM_CPU_HAS_THUMB
> + select BR2_ARM_CPU_ARMV6
> config BR2_cortex_a5
> bool "cortex-A5"
> select BR2_ARM_CPU_MAYBE_HAS_NEON
> select BR2_ARM_CPU_MAYBE_HAS_VFPV4
> select BR2_ARM_CPU_HAS_THUMB2
> + select BR2_ARM_CPU_ARMV7A
> config BR2_cortex_a7
> bool "cortex-A7"
> select BR2_ARM_CPU_HAS_NEON
> select BR2_ARM_CPU_HAS_VFPV4
> select BR2_ARM_CPU_HAS_THUMB2
> + select BR2_ARM_CPU_ARMV7A
> config BR2_cortex_a8
> bool "cortex-A8"
> select BR2_ARM_CPU_HAS_NEON
> select BR2_ARM_CPU_HAS_VFPV3
> select BR2_ARM_CPU_HAS_THUMB2
> + select BR2_ARM_CPU_ARMV7A
> config BR2_cortex_a9
> bool "cortex-A9"
> select BR2_ARM_CPU_MAYBE_HAS_NEON
> select BR2_ARM_CPU_MAYBE_HAS_VFPV3
> select BR2_ARM_CPU_HAS_THUMB2
> + select BR2_ARM_CPU_ARMV7A
> config BR2_cortex_a12
> bool "cortex-A12"
> select BR2_ARM_CPU_HAS_NEON
> select BR2_ARM_CPU_HAS_VFPV4
> select BR2_ARM_CPU_HAS_THUMB2
> + select BR2_ARM_CPU_ARMV7A
> config BR2_cortex_a15
> bool "cortex-A15"
> select BR2_ARM_CPU_HAS_NEON
> select BR2_ARM_CPU_HAS_VFPV4
> select BR2_ARM_CPU_HAS_THUMB2
> + select BR2_ARM_CPU_ARMV7A
> config BR2_fa526
> bool "fa526/626"
> + select BR2_ARM_CPU_ARMV4
> config BR2_pj4
> bool "pj4"
> select BR2_ARM_CPU_HAS_VFPV3
> + select BR2_ARM_CPU_ARMV7A
> config BR2_strongarm
> bool "strongarm sa110/sa1100"
> + select BR2_ARM_CPU_ARMV4
> config BR2_xscale
> bool "xscale"
> select BR2_ARM_CPU_HAS_THUMB
> + select BR2_ARM_CPU_ARMV5
> config BR2_iwmmxt
> bool "iwmmxt"
> + select BR2_ARM_CPU_ARMV5
> endchoice
>
> config BR2_arm1136jf_s
> --
> 2.0.0
>
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