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| author | Thomas Petazzoni <thomas.petazzoni@free-electrons.com> | 2013-07-16 10:03:13 +0200 |
|---|---|---|
| committer | Peter Korsgaard <jacmet@sunsite.dk> | 2013-07-16 14:35:07 +0200 |
| commit | 9b3e72b4fd51b63227adad5dbcae8f68333903df (patch) | |
| tree | 4f70f781064e84369e454d93b374783e805dd7a1 /arch/Config.in.arm | |
| parent | d774551787fc737823fe645bb3efd758619690a2 (diff) | |
| download | buildroot-9b3e72b4fd51b63227adad5dbcae8f68333903df.tar.gz buildroot-9b3e72b4fd51b63227adad5dbcae8f68333903df.zip | |
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>
Diffstat (limited to 'arch/Config.in.arm')
| -rw-r--r-- | arch/Config.in.arm | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/Config.in.arm b/arch/Config.in.arm index 027dac2d9d..29b2b45a79 100644 --- a/arch/Config.in.arm +++ b/arch/Config.in.arm @@ -79,6 +79,16 @@ endchoice config BR2_ARM_EABI def_bool y +config BR2_ARM_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_ARM_ENABLE_NEON bool "Enable NEON SIMD extension support" depends on BR2_ARM_CPU_MAYBE_HAS_NEON |
