kumquat-buildroot/arch/Config.in.mips
Thomas Petazzoni 9b3e72b4fd arch: Refactor BR2_SOFT_FLOAT into per-architecture options
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>
2013-07-16 14:35:07 +02:00

89 lines
2.1 KiB
Plaintext

choice
prompt "Target Architecture Variant"
depends on BR2_mips || BR2_mipsel || BR2_mips64 || BR2_mips64el
default BR2_mips_3 if BR2_mips
default BR2_mips_1 if BR2_mipsel
default BR2_mips_64 if BR2_mips64 || BR2_mips64el
help
Specific CPU variant to use
64bit cabable: 3, 4, 64, 64r2
non-64bit capable: 1, 2, 32, 32r2
config BR2_mips_1
bool "mips I (generic)"
depends on !BR2_ARCH_IS_64
config BR2_mips_2
bool "mips II"
depends on !BR2_ARCH_IS_64
config BR2_mips_3
bool "mips III"
config BR2_mips_4
bool "mips IV"
config BR2_mips_32
bool "mips 32"
depends on !BR2_ARCH_IS_64
config BR2_mips_32r2
bool "mips 32r2"
depends on !BR2_ARCH_IS_64
config BR2_mips_64
bool "mips 64"
config BR2_mips_64r2
bool "mips 64r2"
endchoice
choice
prompt "Target ABI"
depends on BR2_mips || BR2_mipsel || BR2_mips64 || BR2_mips64el
default BR2_MIPS_OABI32 if !BR2_ARCH_IS_64
default BR2_MIPS_NABI32 if BR2_ARCH_IS_64
help
Application Binary Interface to use
config BR2_MIPS_OABI32
bool "o32"
config BR2_MIPS_NABI32
bool "n32"
depends on BR2_ARCH_IS_64
config BR2_MIPS_NABI64
bool "n64"
depends on BR2_ARCH_IS_64
endchoice
config BR2_MIPS_SOFT_FLOAT
bool "Use soft-float"
default y
select BR2_SOFT_FLOAT
help
If your target CPU does not have a Floating Point Unit (FPU)
or a kernel FPU emulator, but you still wish to support
floating point functions, then everything will need to be
compiled with soft floating point support (-msoft-float).
config BR2_ARCH
default "mips" if BR2_mips
default "mipsel" if BR2_mipsel
default "mips64" if BR2_mips64
default "mips64el" if BR2_mips64el
config BR2_ENDIAN
default "LITTLE" if BR2_mipsel || BR2_mips64el
default "BIG" if BR2_mips || BR2_mips64
config BR2_GCC_TARGET_TUNE
default "mips1" if BR2_mips_1
default "mips2" if BR2_mips_2
default "mips3" if BR2_mips_3
default "mips4" if BR2_mips_4
default "mips32" if BR2_mips_32
default "mips32r2" if BR2_mips_32r2
default "mips64" if BR2_mips_64
default "mips64r2" if BR2_mips_64r2
config BR2_GCC_TARGET_ABI
default "32" if BR2_MIPS_OABI32
default "n32" if BR2_MIPS_NABI32
default "64" if BR2_MIPS_NABI64