f11 ppc64 woes

David Woodhouse dwmw2 at infradead.org
Sat Jun 6 15:35:32 UTC 2009


On Sat, 2009-06-06 at 16:13 +0100, David Woodhouse wrote:
> On Sat, 2009-06-06 at 15:29 +0100, David Woodhouse wrote:
> > You could also try using kexec -- that should help eliminate yaboot
> > bugs too.
> 
> Booting with kexec (after rebuilding it because for some reason we're
> shipping a ppc32-capable kexec again, gr)

I needed this too, btw:

--- kexec/arch/ppc64/kexec-elf-rel-ppc64.c.orig	2009-06-06 16:27:10.000000000 +0100
+++ kexec/arch/ppc64/kexec-elf-rel-ppc64.c	2009-06-06 16:08:37.000000000 +0100
@@ -88,6 +88,11 @@ void machine_apply_elf_rel(struct mem_eh
 					| (value & 0x03fffffc);
 		break;
 
+	case R_PPC64_REL32:
+		/* Convert value to relative */
+		*(uint32_t *)location = value - address;
+		break;
+
 	case R_PPC64_ADDR16_LO:
 		*(uint16_t *)location = value & 0xffff;
 		break;

> I blame yaboot...

I note that yaboot doesn't actually do any relocations when it loads the
relocatable kernel, while kexec does. Should it?

-- 
David Woodhouse                            Open Source Technology Centre
David.Woodhouse at intel.com                              Intel Corporation




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