[yocto] Trouble with yocto sdk in collaboration with eclipse and cmake

[Khem Raj]

On Mon, Aug 1, 2016 at 12:04 AM, Hartwig, Guido <g.hartwig at kostal.com> wrote:
> I have manually added the flags from CC (-march=armv7-a -marm -mfpu=neon  -mfloat-abi=hard -mcpu=cortex-a8) to the OECMAKE_C_FLAGS and then it works. I try to find a way, where CMAKE works out of the Box with yocto-plugin. I think the plugin is the problem for this issue.

Please open a bug for this issue in bugzilla

>
> -----Ursprüngliche Nachricht-----
> Von: Khem Raj [mailto:raj.khem at gmail.com]
> Gesendet: Freitag, 29. Juli 2016 20:46
> An: Hartwig, Guido <g.hartwig at kostal.com>
> Cc: yocto at yoctoproject.org
> Betreff: Re: [yocto] Trouble with yocto sdk in collaboration with eclipse and cmake
>
>
>> On Jul 29, 2016, at 1:27 AM, Hartwig, Guido <g.hartwig at kostal.com> wrote:
>>
>> Hi,
>> I have some trouble with the yocto sdk in collaboration with eclipse and yocto CMake project. I have install all necessary eclipse plugins and linked my sdk with the yocto-plugin as described in the manual. When I try to build the "Hello World" yocto cmake project it fails with following message:
>>
>> ..
>> CMake Error at
>> /usr/share/cmake-2.8/Modules/CMakeTestCCompiler.cmake:61 (message): The C compiler "/opt/puck/1.0.0/sysroots/x86_64-pucksdk-linux/usr/bin/arm-kostal-linux-gnueabi/arm-kostal-linux-gnueabi-gcc"
>>  is not able to compile a simple test program ...
>>
>> This error occurs because the compiler is called with the wrong flags.
>> The SDK environment-setup script export the following environment
>> variables export CC="arm-kostal-linux-gnueabi-gcc  -march=armv7-a -marm -mfpu=neon  -mfloat-abi=hard -mcpu=cortex-a8 --sysroot=$SDKTARGETSYSROOT"
>> export CFLAGS=" -O2 -pipe -g -feliminate-unused-debug-types -fdebug-prefix-map=/home/hartwig02/Workspace/build-puck/build/tmp/work/x86_64-nativesdk-pucksdk-linux/meta-environment-scb/1.0-r8=/usr/src/debug/meta-environment-scb/1.0-r8 -fdebug-prefix-map=/home/hartwig02/Workspace/build-puck/build/tmp/sysroots/x86_64-linux= -fdebug-prefix-map=/home/hartwig02/Workspace/build-puck/build/tmp/sysroots/x86_64-nativesdk-pucksdk-linux= "
>>
>> The eclipse environment (set by the yocto plugin) shows the following environment:
>> CC = arm-kostal-linux-gnueabi-gcc  -march=armv7-a -marm -mfpu=neon
>> -mfloat-abi=hard -mcpu=cortex-a8
>> --sysroot=/opt/puck/1.0.0/sysroots/cortexa8hf-neon-kostal-linux-gnueab
>> i CFLAGS =
>> --sysroot=/opt/puck/1.0.0/sysroots/cortexa8hf-neon-kostal-linux-gnueab
>> i OECMAKE_C_COMPILER = arm-kostal-linux-gnueabi-gcc
>> OECMAKE_C_FLAGS =    --sysroot=/opt/puck/1.0.0/sysroots/cortexa8hf-neon-kostal-linux-gnueabi
>>
>> I assume that yocto cmake uses the OECMAKE* variables to build the program.
>> The error occurs because the following compiler options (Tunes) are missing "-march=armv7-a -marm -mfpu=neon  -mfloat-abi=hard -mcpu=cortex-a8"
>>
>> Now my questions
>> 1.    Is it right that the yocto plugin cuts off the tunes from the OECMAKE_C_COMPILER?
>> 2.    Is there a reason that this compiler options are not appended to the CFLAGS?
>
> CFLAGS should be passed down to cmake build system. That seems to be the problem you are seeing. Have you tried to append CFLAGS to OECMAKE_C_FLAGS ?
>
>>
>> Thank you for your help
>>
>>
>>
>> Mit freundlichen Grüßen / Kind regards
>>
>> KOSTAL Industrie Elektrik GmbH
>>
>> Dipl.-Ing.
>> Guido Hartwig
>> IE1 Entwicklung Elektronik
>> R & D Electronics
>>
>> Lange Eck 11, 58099 Hagen
>> Deutschland / Germany
>> Telefon: +49 2331 8040 - 688
>> Telefax: +49 2331 8040 - 4660
>> E-Mail: g.hartwig at kostal.com
>>
>> Internet: http://www.kostal.com/industrie
>>
>>
>>
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