[XTENSA] Fix register corruption for certain processor configurations
authorChris Zankel <chris@zankel.net>
Tue, 22 Jan 2008 08:45:25 +0000 (00:45 -0800)
committerChris Zankel <chris@zankel.net>
Thu, 14 Feb 2008 01:43:54 +0000 (17:43 -0800)
commite1088430626b2ec4cd64f2fb7d9fd7c6df5d5824
treece563e0400ad22974ae65e25d2534432f5d4e76b
parent9f8fcf38e8928cccf8c7b32668d146e457f2ccf2
[XTENSA] Fix register corruption for certain processor configurations

For processor configurations that have optional registers
(compiler-used but non-coprocessor), user space registers
might get corrupted when there are only 4 registers in
the current window-frame, ie. register a4 belongs to the
oldest frame in the register file.

Signed-off-by: Chris Zankel <chris@zankel.net>
arch/xtensa/kernel/entry.S