I am looking at doing a D project and have installed the DMD compiler on my 64-bit Ubuntu dev system.  My target architecture to ARM, as used in the Raspberry PI and other systems.  I need to know how I can develop code on Linux x86 and run it on the RPI.  Any pointer to an article about this topic is appreciated.

-- 
Regards,

Ken

Seek wisdom through disbelief

On Saturday, 27 February 2016 at 16:27:31 UTC, Ken Burgett wrote:
> I am looking at doing a D project and have installed the DMD compiler on my 64-bit Ubuntu dev system.  My target architecture to ARM, as used in the Raspberry PI and other systems.  I need to know how I can develop code on Linux x86 and run it on the RPI.  Any pointer to an article about this topic is appreciated.

Download x86_64-linux-gnu toolchain targeting arm-linux-gnueabihf from [1] (its the second row). For Raspberry Pi it works out of the box, try:

$ /opt/arm-linux-gnueabihf/bin/arm-linux-gnueabihf-gdc hello.d -o hello

$ file hello
hello: ELF 32-bit LSB  executable, ARM, EABI5 version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.32, not stripped

To build with dub, you need to pass the --compiler flag, e.g.

$ dub build --compiler=/opt/arm-linux-gnueabihf/bin/arm-linux-gnueabihf-gdc

This can even build vibe.d apps for RPi, provided that you have all target .so files (AFAIK these are libevent, libevent_pthread, libssl and libcrypto).

qemu-arm-static can execute statically linked ARM linux apps right on your PC.

You can also build for bare metal ARM (even Cortex-M) with the same toolchain if you pass correct flags. See [2].

[1] http://gdcproject.org/downloads
[2] http://wiki.dlang.org/Minimal_semihosted_ARM_Cortex-M_"Hello_World"

On 29 February 2016 at 09:35, Adrian Matoga via D.gnu <d.gnu@puremagic.com> wrote:

> On Saturday, 27 February 2016 at 16:27:31 UTC, Ken Burgett wrote:
>
>> I am looking at doing a D project and have installed the DMD compiler on my 64-bit Ubuntu dev system.  My target architecture to ARM, as used in the Raspberry PI and other systems.  I need to know how I can develop code on Linux x86 and run it on the RPI.  Any pointer to an article about this topic is appreciated.
>>
>
> Download x86_64-linux-gnu toolchain targeting arm-linux-gnueabihf from [1] (its the second row). For Raspberry Pi it works out of the box, try:
>
> $ /opt/arm-linux-gnueabihf/bin/arm-linux-gnueabihf-gdc hello.d -o hello
>
> $ file hello
> hello: ELF 32-bit LSB  executable, ARM, EABI5 version 1 (SYSV),
> dynamically linked (uses shared libs), for GNU/Linux 2.6.32, not stripped
>
> To build with dub, you need to pass the --compiler flag, e.g.
>
> $ dub build --compiler=/opt/arm-linux-gnueabihf/bin/arm-linux-gnueabihf-gdc
>
> This can even build vibe.d apps for RPi, provided that you have all target .so files (AFAIK these are libevent, libevent_pthread, libssl and libcrypto).
>
> qemu-arm-static can execute statically linked ARM linux apps right on your PC.
>
>
I totally forgot about this nice little feature of qemu.

I have this in my old-old list of bookmarked lists for setting up a Raspbian qemu-chroot.

https://superpiadventures.wordpress.com/

You can of course replace it with any derivative of Debian that supports RPI.

Thanks!

Am Mon, 29 Feb 2016 08:35:52 +0000
schrieb Adrian Matoga <dlang.spam@matoga.info>:

> $ dub build --compiler=/opt/arm-linux-gnueabihf/bin/arm-linux-gnueabihf-gdc
> 
> This can even build vibe.d apps for RPi, provided that you have all target .so files (AFAIK these are libevent, libevent_pthread, libssl and libcrypto).

It's also possible to access the libraries from a running RPi using sshfs:

http://wiki.dlang.org/GDC/Cross_Compiler/Existing_Sysroot