On Fri, Jun 08, 2018 at 01:03:11AM +0200, Pascal Vizeli wrote: > Hi Sascha, > > I wrote a patch they do that what you have suggest. It write the dtb > from memory into a file. > > My problem is, I don't know how I can share data between PBL and the > main process? > That are not the same binary, so I can't use extern keyword and on > this early boot step I don't know how I can access to memory. > I think with a simple pointer, I can't access to a memory area they > are not my own? I have a patch in the queue that shall solve this problem, but I never came to it to make it ready. So far I would recommend some internal SRAM to store a pointer. Another possibility would be to pass some less memory to barebox_arm_entry() and pick up the data there. (I would recommend at least 4k of memory to steal) Sascha -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 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
