CCS/66AK2H14: Creating a hello project using the gcc compiler does not compile out of the box

Christo Labuschagne1

Intellectual 290 points

Part Number: 66AK2H14

Tool/software: Code Composer Studio

Good day

This is more a bug report and a guide for if anyone else gets the same problem. I'm using

the evmK2H
CCS 9.3
GNU v9.2.1 (Linaro) compiler
Linux host

The reason for the GNU compiler is that the TI compiler does not work for the A15, as the only target for the ARM is the gnu.targets.arm.A15F.

When I create a new CCS project, Select the target, Cortex A, Compiler GNU v9.2.1, Empty Project (with main.c), give it a name and finish.

Now try and compile. It fails with the following error:

makefile:137: recipe for target 'test.out' failed
ti/ccs930/ccs/tools/compiler/gcc-arm-none-eabi-9-2019-q4-major/bin/../lib/gcc/arm-none-eabi/9.2.1/../../../../arm-none-eabi/bin/ld: error: ./main.o uses VFP register arguments, test.out does not

Ok, technically it fails at linking and not compiling...

So the problem is that the code was compiled using hard floating point (set by default) but the linker is not set to use hard floating point. The quick fix for me was to just add "-mfloat-abi=hard" to the linker command as well.

Project - Properties - Build - GNU Linker - Edit Flags... and then just paste -mfloat-abi=hard in there. Apply and Close. Compile and Bob is your uncle.

Hope this helps future users and maybe tech support to build in a fix.

Christo

over 5 years ago

0 JohnS over 5 years ago

TI__Guru**** 162875 points

Christo,

For 66AK2H14 you will want to be using the gcc compiler that comes with the SDK. The gcc that we bundle in CCS is meant for use with MCU class devices (Cortex M/R). For processors the compilers to use come with the Processor SDK for that platform. https://www.ti.com/tool/PROCESSOR-SDK-K2H

Regards,

John

0 Rex Chang over 5 years ago in reply to JohnS

TI__Guru 50170 points

There are 2 different cross-compilers.

For baremeta, arm-none-eabi is used.

For linux compilation, arm-linux-gnueabihf cross-compiler should be used.

For compiler params, please use compiler help command to get more details. Cross-compiler is not in TI support scope.

Rex

0 Rex Chang over 5 years ago in reply to Rex Chang

TI__Guru 50170 points

Duplicate thread with: https://e2e.ti.com/support/processors/f/791/p/934775/3455608#3455608

Move all responses to that thread.

Rex

0 Christo Labuschagne1 over 5 years ago in reply to JohnS

Intellectual 290 points

Hi John

Sorry for taking so long to reply, but I am new to the processor and want to try and make sure I don't ask stupid questions or make unfounded remarks. I could not find a gcc compiler that ships with processor SDK.

From the website, I found this:

https://www.ti.com/tool/PROCESSOR-SDK-K2H points you to -

https://software-dl.ti.com/processor-sdk-rtos/esd/docs/latest/rtos/index.html which references the compilers:

Compilers

TI C6000 - TI ARM - TI PRU - Linaro GCC ARM

http://software-dl.ti.com/dsps/dsps_public_sw/sdo_sb/targetcontent/rtsc/3_55_02_22/exports/docs/xdctools_3_55_02_22_supported_targets.html

Here it states that the A15F should use the GNU compiler with is Linaro. Do I understand it correctly?

Versions of the above compiler ships with CCS930 which is supposed to be the supported version for the processor SDK that I'm using.

Could you maybe clarify what you meant with the compiler that ships with the SDK?

Thank you for the feedback

0 lding over 5 years ago in reply to Christo Labuschagne1

TI__Guru* 95265 points

Hi,

As you build RTOS or baremetal examples on K2H, not Linux, you can refer to the link:

The installer contains the gcc-arm-none-eabi-7-2018-q2-update, this is your compiler for A15.

Regards, Eric

0 Rex Chang over 5 years ago in reply to lding

TI__Guru 50170 points

If you build for Linux target, the PLSDK installer is at

software-dl.ti.com/.../index_FDS.html

The toolchain is under linux-devkit folder. You need to pick whick toolchain to use depending on what OS will be on ARM core..

Rex

0 Christo Labuschagne1 over 5 years ago in reply to lding

Intellectual 290 points

Good day Eric

Thank you for your reply. That is the RTOS installer I'm using. It does seem like it might be that I was accidentally using GNU v9.2.1 and not GNU v7.2.1. Thank you for the feedback.

Christo

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CCS/66AK2H14: Creating a hello project using the gcc compiler does not compile out of the box