Messages in this thread | | | Date | Fri, 24 Feb 2006 14:53:41 +0100 | From | Arjan van de Ven <> | Subject | Re: Patch to make the head.S-must-be-first-in-vmlinux order explicit |
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Eric W. Biederman wrote: > Andi Kleen <ak@suse.de> writes: > >> On Thursday 23 February 2006 14:57, Arjan van de Ven wrote: >> >>>> (or at least >>>> it shouldn't), but arch/x86_64/boot/compressed/head.S >>>> seems to have the entry address hardcoded. Perhaps you can just change this >>>> to pass in the right address? >>> the issue is that the address will be a link time thing, which means >>> lots of complexity. >> bzImage image should be only generated after vmlinux is done >> and then the address should be available with a simple grep in System.map > > Andi it is more than that. At least it was last I payed attention. > There are symbols like stext that various things depend on being early, > at least last time I looked. So while it is doable it requires some > careful looking.
_stext and such are very easy. That is actually not a real variable just a linker script thing, and since the reordering works on the linker script level that's already taken care of ;-)
I've looked some yesterday at generating this at runtime, and haven't found a clean enough solution yet (esp one that doesn't break kdump); I'll keep poking at it for a bit more though.... - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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