Hello, On 25.02.21 16:33, Ahmad Fatoum wrote: > 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. Dismiss this last request. C code will just zero-initialize jmp_buf, so initjmp needs only fill out return address and stack pointer. I just sent out a series, which can be used to develop this one. @Jules, any chance you could take over the kvx port? :-) -- 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
