TMDXIDK5718: Processor SDK Toolchain

Peter Hong

Part Number: TMDXIDK5718

I'm going through the procedure described in

1.2. Building the SDK.

It mentions Cross-Compile Toolchain requirement and describes the following:

Download the toolchain compilers from the links provided in the SDK release page. Keep the extracted toolchains in the $HOME directory of host Linux machine. Use $HOME directory as the PATH_TO_TOOLCHAIN in following command.

Note

For building all SDK components, you need two compilers. ARMv8 for software running on A72 ARMv7 for software running on R5F Make sure to download both of these toolchains before starting yocto build.

I'm a bit confused by the statement above because the compiler in " ..sysroot/x86_64-arago-linux/usr/bin" is supposedly capable of compiling for all A family of processors - although it's unclear how to tell the compiler the target processor. If that's the case, why is there an instruction to download two additional compilers? Can we just use " ..sysroot/x86_64-arago-linux/usr/bin/arm-none-linux-gnueabihf-gcc-9.2.1"?

SDK I'm using is 08.02.

over 2 years ago

0 Josue Zamitiz-Ayala over 2 years ago

TI__Mastermind 34956 points

Hello Peter,

Yes, I agree, this is confusing. These instructions are not the most clear since the instructions for building the SDK from the K3 architecture are blended into the document for AM57x. This bug has been identified and will be rectified on the next release.

Multiple compilers are needed in order to compile code for the different cores of the SoC, some of which are AMRv7 and others are ARMv8. Since the great majority of our software is reused across platforms (SoC's) you will need both compilers.

Please use these toolchains:

Hope this helps!

-Josue

0 Peter Hong over 2 years ago in reply to Josue Zamitiz-Ayala

Intellectual 966 points

Thank you for your explanation. But, I'm still unsure that I understand. Then, it seems that the two compilers specified in your reply are intended for Yocto builds only, while the other compiler, for example, <tisdk>/linux_devkit/sysroot/x86_64-arago-linux/usr/bin/arm-none-linux-gnueabihf-gcc is for embedded linux application code development. Is my understanding correct?

+1 Josue Zamitiz-Ayala over 2 years ago in reply to Peter Hong

TI__Mastermind 34956 points

Yes. This is correct.

Processors

Processors forum

TMDXIDK5718: Processor SDK Toolchain

1.2. Building the SDK.