arch/mips: add option for toolchains supporting -mfpxx

-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>

diff --git a/arch/Config.in.mips b/arch/Config.in.mips
index 3d2dfe3f4991905621114537d022ddd3a812ae33..89e6effee998dd2e0d4d21dccd83ce52ac9d279d 100644 (file)
--- a/arch/Config.in.mips
+++ b/arch/Config.in.mips
@@ -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"

diff --git a/toolchain/toolchain-common.in b/toolchain/toolchain-common.in
index 0002682e12d7647783d19dc56c6eff4b9ee6be54..dd192b9ba46abb9cf705c7f9e4c946c599cb78ab 100644 (file)
--- a/toolchain/toolchain-common.in
+++ b/toolchain/toolchain-common.in
@@ -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