Unfortunately no success tests on raspberryPi BSP with qemu

[Heinz Junkes]

Hallo Jacob,
I finally managed to get everything working properly under OS-X as well.
You only have to follow the documentation ;-(
And there especially the link to the bootable firmware:

git clone https://github.com/raspberrypi/firmware.git
cd firmware
git checkout tags/1.20200601 -b oldRaspi

And then there was a hurdle with the OS-X default filesystem:
"By default, Mac OS uses a case-insensitive file system to support compatibility with applications (for example, Photoshop) provided for the operating system. The file system itself is capable of working in a case-sensitive mode.”
I had to create a volume with the case-sensitive support.
And in this volume I was then able to install everything without any problems and with your two shell scripts get it working.

Danke,
Heinz


> On 1. May 2023, at 20:19, Jacob Killelea <jkillelea344 at gmail.com> wrote:
> 
> Hi Heinz,
> 
> Here's a couple notes I use to get things up and running, and I've attached my scripts.
> 
> 1. You need an old version of the RPi firmware, the newer Device Tree Blobs are not supported.
> 2. I use GDB in another window to load the DTB and kick off the boot process.
> 3. I usually target the Raspberry Pi 2 or 3 with SMP (the Pi 1 is just too old). I've made a couple tweaks to get that one to boot that aren't in the docs yet. I use arm-rtems6-objcopy -O binary [exe_name].exe kernel.img to create a raw binary and load that into QEMU. Debugging symbols still work in GDB, but for whatever reason, the elf files from GCC don't work with SMP.
> 4. This article has some great pointers about configuring QEMU to run Linux on a Pi 3, which is essentially identical to the Pi 2, except with WiFi. https://raduzaharia.medium.com/system-emulation-using-qemu-raspberry-pi-3-4973260ffb3e
> 
> 
> Hope that helps,
> Jacob
> 
> On Fri, Mar 17, 2023 at 9:49 AM Heinz Junkes <junkes at fhi-berlin.mpg.de> wrote:
> Hi,
> 
> I've been trying again for some time to get RTEMS (version 5 or 6) for raspberryPi2 to work on a qemu.
> 
> There is a lot of documentation about it. To those I have tried it there are always some 'fuzzies’ and I 
> unfortunately get never any output message when starting
> qemu-system-arm -M raspi2 -m 1G -kernel ./tests/hello.exe  -serial mon:stdio -nographic 
> 
> Has anyone ever done it successfully and can send me a script?
> Danke,
> Heinz
> 
> P.S. no problems with RTEMS_BSP=xilinx_zynq_a9_qemu (on 5 and 6, with/without rtems-libbsd). 
>      I have never managed to get a bootable SD card here.
> 
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