9b3e72b4fd
As we are going to introduced a more advanced support of floating point options for the ARM architecture, we need to adjust how the soft-float option is handled. We replace the current hidden option BR2_PREFER_SOFT_FLOAT option and the visible BR2_SOFT_FLOAT option by: * A global hidden BR2_SOFT_FLOAT option, defined in arch/Config.in, that tells whether the architecture-specific code is using software emulated floating point. This hidden option can be used throughout Buildroot to determine whether soft float is used or not. * Per-architecture visible BR2_<arch>_SOFT_FLOAT options, for the architecture for which it makes sense, which allows users to select soft float emulation when needed. This change will allow each architecture to have a different way of presenting its floating point capabilities. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
156 lines
3.8 KiB
Plaintext
156 lines
3.8 KiB
Plaintext
# arm cpu features
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config BR2_ARM_CPU_HAS_NEON
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bool
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# for some cores, NEON support is optional
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config BR2_ARM_CPU_MAYBE_HAS_NEON
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bool
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choice
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prompt "Target Architecture Variant"
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depends on BR2_arm || BR2_armeb
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default BR2_arm926t
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help
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Specific CPU variant to use
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config BR2_arm7tdmi
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bool "arm7tdmi"
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config BR2_arm720t
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bool "arm720t"
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config BR2_arm920t
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bool "arm920t"
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config BR2_arm922t
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bool "arm922t"
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config BR2_arm926t
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bool "arm926t"
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config BR2_arm10t
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bool "arm10t"
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config BR2_arm1136jf_s_r0
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bool "arm1136jf_s rev0"
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config BR2_arm1136jf_s_r1
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bool "arm1136jf_s rev1"
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config BR2_arm1176jz_s
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bool "arm1176jz-s"
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config BR2_arm1176jzf_s
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bool "arm1176jzf-s"
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config BR2_cortex_a5
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bool "cortex-A5"
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select BR2_ARM_CPU_MAYBE_HAS_NEON
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config BR2_cortex_a7
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bool "cortex-A7"
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select BR2_ARM_CPU_HAS_NEON
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config BR2_cortex_a8
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bool "cortex-A8"
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select BR2_ARM_CPU_HAS_NEON
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config BR2_cortex_a9
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bool "cortex-A9"
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select BR2_ARM_CPU_MAYBE_HAS_NEON
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config BR2_cortex_a15
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bool "cortex-A15"
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select BR2_ARM_CPU_HAS_NEON
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config BR2_fa526
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bool "fa526/626"
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config BR2_pj4
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bool "pj4"
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config BR2_strongarm
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bool "strongarm sa110/sa1100"
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config BR2_xscale
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bool "xscale"
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config BR2_iwmmxt
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bool "iwmmxt"
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endchoice
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config BR2_arm1136jf_s
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bool
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default BR2_arm1136jf_s_r0 || BR2_arm1136jf_s_r1
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choice
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prompt "Target ABI"
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depends on BR2_arm || BR2_armeb
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depends on BR2_DEPRECATED
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default BR2_ARM_EABI
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help
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Application Binary Interface to use
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config BR2_ARM_EABI_CHOICE
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bool "EABI"
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endchoice
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config BR2_ARM_EABI
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def_bool y
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config BR2_ARM_SOFT_FLOAT
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bool "Use soft-float"
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default y
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select BR2_SOFT_FLOAT
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help
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If your target CPU does not have a Floating Point Unit (FPU)
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or a kernel FPU emulator, but you still wish to support
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floating point functions, then everything will need to be
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compiled with soft floating point support (-msoft-float).
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config BR2_ARM_ENABLE_NEON
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bool "Enable NEON SIMD extension support"
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depends on BR2_ARM_CPU_MAYBE_HAS_NEON
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select BR2_ARM_CPU_HAS_NEON
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help
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For some CPU cores, the NEON SIMD extension is optional.
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Select this option if you are certain your particular
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implementation has NEON support and you want to use it.
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config BR2_ARCH
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default "arm" if BR2_arm
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default "armeb" if BR2_armeb
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config BR2_ENDIAN
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default "LITTLE" if BR2_arm
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default "BIG" if BR2_armeb
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config BR2_GCC_TARGET_TUNE
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default "arm7tdmi" if BR2_arm7tdmi
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default "arm7tdmi" if BR2_arm720t
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default "arm7tdmi" if BR2_arm740t
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default "arm920" if BR2_arm920
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default "arm920t" if BR2_arm920t
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default "arm922t" if BR2_arm922t
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default "arm926ej-s" if BR2_arm926t
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default "arm1136j-s" if BR2_arm1136j_s
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default "arm1136jf-s" if BR2_arm1136jf_s
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default "arm1176jz-s" if BR2_arm1176jz_s
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default "arm1176jzf-s" if BR2_arm1176jzf_s
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default "cortex-a5" if BR2_cortex_a5
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default "cortex-a7" if BR2_cortex_a7
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default "cortex-a8" if BR2_cortex_a8
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default "cortex-a9" if BR2_cortex_a9
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default "cortex-a15" if BR2_cortex_a15
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default "fa526" if BR2_fa526
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default "marvell-pj4" if BR2_pj4
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default "strongarm" if BR2_strongarm
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default "xscale" if BR2_xscale
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default "iwmmxt" if BR2_iwmmxt
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config BR2_GCC_TARGET_ARCH
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default "armv4t" if BR2_arm7tdmi
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default "armv4t" if BR2_arm720t
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default "armv4t" if BR2_arm920t
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default "armv4t" if BR2_arm922t
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default "armv5te" if BR2_arm926t
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default "armv5t" if BR2_arm10t
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default "armv6j" if BR2_arm1136jf_s_r0
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default "armv6k" if BR2_arm1136jf_s_r1
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default "armv6zk" if BR2_arm1176jz_s
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default "armv6zk" if BR2_arm1176jzf_s
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default "armv7-a" if BR2_cortex_a5
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default "armv7-a" if BR2_cortex_a7
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default "armv7-a" if BR2_cortex_a8
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default "armv7-a" if BR2_cortex_a9
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default "armv7-a" if BR2_cortex_a15
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default "armv4" if BR2_fa526
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default "armv7-a" if BR2_pj4
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default "armv4" if BR2_strongarm
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default "armv5te" if BR2_xscale
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default "iwmmxt" if BR2_iwmmxt
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config BR2_GCC_TARGET_ABI
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default "aapcs-linux"
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