On 13/02/18 09:16, John Paul Adrian Glaubitz wrote:
On Feb 13, 2018, at 7:39 AM, Mark Cave-Ayland <[email protected]>
wrote:
On 12/02/18 10:55, John Paul Adrian Glaubitz wrote:
On 02/12/2018 11:52 AM, Mathieu Malaterre wrote:
From the look at the error message, I thought this was the hack
[email protected] used with:
https://packages.debian.org/sid/e2fslibs1.41-dev
Again, we're talking about booting the CD, not the installed system.
There is no ext2/3/4 involved here. The bug you mentioned exists
because Yaboot doesn't handle ext4.
The above package provided the key: the link error I was seeing was because the
default e2fslibs package only provides .so libraries. Extracting the static
library from the above package was enough to get my compile to succeed.
Ok, I wasn’t paying too much attention to the linker errors. We have to verify
then that Yaboot actually still builds on unstable.
I did have a look at the sid yaboot debian packages, and from memory
they did list the dependency on e2fslibs1.41-dev so I would expect this
to work.
Anyhow I can confirm that the bug I see is present in 1.3.17 and not 1.3.16,
and with the magic of git bisect I managed to isolate it down to this commit:
I can upload a version of Yaboot today with this patch reverted provided that
Yaboot still builds fine on unstable without the hack you used.
Well let me dig a bit deeper first. The net result of the change is that
the malloc() heap base is changed from 0x300000 to just under
PROM_CLAIM_MAX_ADDR (0x10000000), and the claim itself returns success
from the firmware.
The strange behaviour I was seeing in the debugger was that writes to
the higher address ranges (i.e. in strdup()) were succeeding but reading
back the just written values was returning all zeros which is why the
configuration data comes back empty.
ATB,
Mark.
