On Thu, Dec 19, 2019 at 11:40 AM Sreenadh S <sreenadhsurya@xxxxxxxxx> wrote: > > We want to port fedora for RISC-V with out compressed (RV64IMAFD) instructions. > > We are from Centre for Development of Advanced Computing (C-DAC) India. > We have implemented an Out-of order quad core RISC-V processor on FPGA. > > The processor is without compressed instructions. > We want to port fedora for RISC-V with out compressed instructions. > > Please share the link if it is already ported, or give the guidelines on how to port. Hi, There seems to be a number of people who potentially want to have Fedora/RISCV with RV64G. Billa Surendra <billa.iitmadras@xxxxxxxxx> already started such efforts, thus you most likely want to join it. Basically the process should be easy as RV64GC and RV64G share the same ABI. I checked glibc dynamic loader code at some point and verified (by code review) that it allows mixing RV64GC and RV64G shared libraries. Kernel, OpenSBI and U-Boot don't care about compression instructions. IIRC U-Boot builds with RVC by default, but there is a config option to disable that. So simply check and rebuild firmware blobs with RVC disabled. Then load Fedora/RISCV existing disk image on QEMU RV64GC virt machine or SiFive Unleashed. Find the latest disk images here: https://dl.fedoraproject.org/pub/alt/risc-v/disk-images/fedora/rawhide/ Then rebuild toolchain (e.g. GCC) to target RV64G instead of RV64GC. Finally start building all installed packages until you can reassembly disk image from them. Once you have that change QEMU or hardware to RV64G. david > > Regards, > > Sreenadh S. > _______________________________________________ > devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx > To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx > Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ > List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines > List Archives: https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx
