On 07/31/2009 08:49 PM, Carlos O'Donell wrote:
[...]
However, on 64-bit the long format of ldd has a 16-bit signed
immediate offset (0xffff), meaning it can reach +0x7fff e.g. 4095 GOT
slots.
Do you have the time to test something out?
* Make this conditional on 32-bit vs. 64-bit and allow for 4095 GOT
entries on 64-bit.
* Fix ELF_GOT_STUB for the 64-bit case. It needs to reassemble a
16-bit offset, the current code is IMO incorrect. i.e. it should be "&
0x7fff", and use a new reassemble_16 see the PA 2.0 book definition of
ldd.
* Build kernel.
* Test loading NFS moudle.
Carlos, thanks a lot for those explanations (and keep up your work with NPTL
:-)).
I'll know what you mean, and if it works it's a good idea.
I'll try to come up with a patch.
A few notes:
- the GOT table is only used for 64bit anyway, so no need to differentiate for
32/64bits
- Another possibility could be to sort the tables, so to reduce the number of
needed entries.
Helge
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