On 14. Jan 19 23:43, Jakub Jermář wrote: > On 1/14/19 8:34 PM, Petr Pavlu wrote: > > I have created and maintain a small project that adds support for > > the 64-bit Arm architecture (AArch64) to HelenOS. > > > > Source code of the port is available on GitHub [1]. It targets > > the QEMU virt platform with Cortex-A57, PL011 (UART), GICv2 > > (interrupt controller), VirtIO-SCSI CD-ROM and EDK2 (UEFI > > implementation). The port implements usual low-level bits needed > > to run HelenOS on some architecture (boot, kernel, uspace) and > > can successfully boot on the mentioned platform and run user > > space console applications. > > > > The port was created primarily for my learning purposes but might > > be useful for others and I wonder if there would be interest in > > me trying to upstream it in the official version of HelenOS. > > > > [1] https://github.com/setupji/helenos > > This is simply amazing! I briefly glanced through your changes, built > the toolchain and ran HelenOS/arm64. Truly a wonderful achievement! > > Indeed, we would be interested in having this upstreamed to HelenOS. I'd > suggest rebasing to the current master and then submitting a PR.
Excellent, I will start working on the rebase and first try submitting PRs for a few not strictly AArch64-specific changes and then cut the remaining parts into a set of patches so they can be easily reviewed. On 15. Jan 19 01:37, Jiri Svoboda wrote: > Long time, no see :-) Looks like you just can't stop from doing amazing > stuff, do you? :-D It will be great to have the arm64 port upstreamed! It has been a while. :) Thanks for the kind words! > When you do that, I have an additional request: You know all the AArch64 > documents, can you add links, or at least names to http://www.helenos.org/ > wiki/DeveloperDocs/CPUArch ? I managed to identify one, the A64 instruction > set. Sure, I have added to this page a set of links that is similar to the lists for other architectures. > Do you know the name/link especially for the System V ABI processor > supplement for AArch64? Do you know if there is a document describing TLS > support for AArch64 so we can implement Dynamic linking+TLS support? (or is > that part of the ABI CPU supplement?) I think there is currently no published document describing AArch64 SysV ABI. Some description of TLS support can be found in "ELF for the ARM 64-bit Architecture (AArch64)" [1] but I am not sure if it has all needed information. [1] https://developer.arm.com/docs/ihi0056/latest Cheers, Petr _______________________________________________ HelenOS-devel mailing list HelenOS-devel@lists.modry.cz http://lists.modry.cz/listinfo/helenos-devel
