topic Re: using hardfloat : arm-poky-linux-gnueabihf in i.MX Processors

using hardfloat : arm-poky-linux-gnueabihf

anjojohn — Thu, 20 Oct 2016 06:39:25 GMT

Hi all,

i want to use the hard-float compiler arm-poky-linux-gnueabihf instead of the soft-float. how to setup the tool chain for this. So far i was able to use soft float and there isn't any examples for setting up hard-float compiler. below is my current build configuration

Build Configuration:
BB_VERSION        = "1.26.0"
BUILD_SYS         = "x86_64-linux"
NATIVELSBSTRING   = "Ubuntu-14.04"
TARGET_SYS        = "arm-poky-linux-gnueabi"
MACHINE           = "wandboard-dual"
DISTRO            = "poky"
DISTRO_VERSION    = "1.8.1"
TUNE_FEATURES     = "arm armv7a vfp thumb neon callconvention-hard cortexa9"
TARGET_FPU        = "vfp-neon"

Could any one please tell me how to setup hard-float compiler, in my build directory i am only seeing arm-poky-linux-gnueabi which is the soft float compiler. Is there any specific instruction or configuration ? I am using wandboard-dual setup for testing.

Re: using hardfloat : arm-poky-linux-gnueabihf

Carlos_Musich — Tue, 25 Oct 2016 22:16:57 GMT

Hi Anjo,

what kernel are you using? Latest kernels use hard fp as default.

of you want to build an application please follow this syntax:

arm-poky-linux-gnueabi-gcc Test.c -mfloat-abi=hard -o test

Regards,
Carlos

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Re: using hardfloat : arm-poky-linux-gnueabihf

anjojohn — Wed, 26 Oct 2016 02:55:17 GMT

Hi Carlos,

My Linux kernel version is 3.14.28. i checked the CC flags and saw -mfloat-abi=hard flag.