Hello, On 25.02.21 14:02, Jules Maselbas wrote: > On Thu, Feb 25, 2021 at 09:45:00PM +0900, Stafford Horne wrote: >> Hello, >> >> I am the maintainer of most OpenRISC things right now. I would be happy to >> help, but I don't really use barebox right now. Most of my deployments I use >> with litex FPGA SoC's that has its own bootloader. >> >> That said, we have a setjmp/longjmp implementation in our glibc port which I >> have been testing for upstreaming lately. >> >> https://github.com/stffrdhrn/or1k-glibc/blob/or1k-port-2/sysdeps/or1k/setjmp.S >> https://github.com/stffrdhrn/or1k-glibc/blob/or1k-port-2/sysdeps/or1k/__longjmp.S >> >> I had a look at the barebox docs and openrisc port, it seems like there is >> support for our standard platform, or1ksim, which is the same as my de0-nano >> fpga board/soc and qemu. I should be able to make use of this. >> >> Is there a branch where you are doing the green thread work? I could add and >> test the OpenRISC implementation. > Hi, > > I've done this yesterday, I've push a branch[1] that has the green > thread paches applied (except patches on usb mass storage gadget). > https://github.com/jmaselbas/barebox/tree/test_setjmp Great. Thanks. I'm preparing an updated version that will clean it up a bit, but the heart part of architectures providing setjmp/longjmp/initjmp will stay the same. Small request: If you implement initjmp, could you have it save into jmp_buf a frame pointer value of NULL if applicable? That way, should backtrace be implemented (or done via JTAG), they have a defined end. Cheers, Ahmad > To test greenthread your can run the `poller -c` command in barebox's > prompt. To do you you'll need to enable CONFIG_POLLER_YIELD and define > CONFIG_HAS_ARCH_SJLJ > > Best, > Jules > > > > _______________________________________________ > barebox mailing list > barebox@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/barebox > -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
