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arch/mips: add option for toolchains supporting -mfpxx

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-mfpxx option was added in gcc-5.1.0 so make sure that users cannot
select the "xx" fp32 mode when using toolchains that have a gcc older
than 5.1.0.

-mfp32 and -mfp64 were added in gcc-4.1.0, so given the older gcc
version we support in Buildroot (in the GCC_AT_LEAST options) is 4.3 we
don't need to do anything else for them.

Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Vicente Olivert Riera 2017-07-21 18:06:32 +01:00 committed by Thomas Petazzoni
parent 0af741187f
commit 087be35e22
2 changed files with 6 additions and 1 deletions
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3
arch/Config.in.mips
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@ -137,7 +137,7 @@ config BR2_MIPS_SOFT_FLOAT
choice
prompt "FP mode"
depends on !BR2_ARCH_IS_64 && !BR2_MIPS_SOFT_FLOAT
default BR2_MIPS_FP32_MODE_XX
default BR2_MIPS_FP32_MODE_XX if BR2_TOOLCHAIN_HAS_MFPXX_OPTION
help
MIPS32 supports different FP modes (32,xx,64). Information about FP
modes can be found here:
@ -150,6 +150,7 @@ config BR2_MIPS_FP32_MODE_32
config BR2_MIPS_FP32_MODE_XX
bool "xx"
depends on BR2_TOOLCHAIN_HAS_MFPXX_OPTION
config BR2_MIPS_FP32_MODE_64
bool "64"

4
toolchain/toolchain-common.in
View File

@ -346,6 +346,10 @@ config BR2_TOOLCHAIN_HAS_MNAN_OPTION
bool
default y if BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
config BR2_TOOLCHAIN_HAS_MFPXX_OPTION
bool
default y if BR2_TOOLCHAIN_GCC_AT_LEAST_5
config BR2_TOOLCHAIN_HAS_SYNC_1
bool
default y