On Sat, Sep 2, 2017 at 8:16 AM, Russell King - ARM Linux <linux@xxxxxxxxxxxxxxx> wrote: > On Thu, Aug 31, 2017 at 10:43:19AM -0700, Tony Lindgren wrote: >> * Russell King - ARM Linux <linux@xxxxxxxxxxxxxxx> [170831 09:21]: >> > On Fri, Sep 01, 2017 at 01:05:16AM +0900, Roger Shimizu wrote: >> > > On Fri, Sep 1, 2017 at 12:49 AM, Russell King - ARM Linux >> > > <linux@xxxxxxxxxxxxxxx> wrote: >> > > > What's the use case - what are you using the output of this script with? >> > > >> > > I already provided a use case, to trace a Debian kernel issue caused >> > > by kernel size. >> > > - https://bugs.debian.org/870185#50 >> > >> > Sorry, I haven't time to look - it needs me to use firefox on a >> > different machine. Maybe you could help by providing some details >> > by email, otherwise I've got extra work to do at some point in the >> > future (probably days away) if I remember (your mail will get buried). >> > Much of my time is in front of a _textual_ _only_ interface, and elinks >> > does not work with several modern SSL-only sites. >> > >> > > I also see other people complaining this issue: >> > > - https://bugs.launchpad.net/linaro-ubuntu/+bug/1050453 >> > > - https://bugs.linaro.org/show_bug.cgi?id=461 >> > > >> > > By a random web search, I find another blog post on how to dissamble the kernel. >> > > - https://blog.packagecloud.io/eng/2016/03/08/how-to-extract-and-disassmble-a-linux-kernel-image-vmlinuz/ >> > >> > Yea, all SSL sites, I'm not going to try elinks with them, I don't >> > have the time to mess around. >> >> I think the use case is to get the booted kernel size from zImage >> to avoid overwriting dts or initramfs. Don't we already have that >> at the end of zImage somewhere for kexec? > > We do, but finding where that is is difficult if a DTB has been appended > as it's right at the end of the compressed data. kexec doesn't use it, > it just assumes there's a 5x expansion of the kernel compressed image. My patch already take the appended DTB blob part into consideration. It uses "unxz --single-stream" instead of "unxz" to extract, so unxz just ignore the DTB. I confirmed it works well on my armel box, which need to append a device specific DTB. For the use case, I already provided several bug reports and blog posts. I think current script is broken for armel/armhf, which can be fixed by my patch. So please kindly consider this patch. Thank you! Cheers, -- Roger Shimizu, GMT +9 Tokyo PGP/GPG: 4096R/6C6ACD6417B3ACB1 -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
