diff options
| author | Max Filippov <jcmvbkbc@gmail.com> | 2014-07-27 07:23:41 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-10-05 13:40:56 -0700 |
| commit | 2ca6012df2209959481cdafae17bd78b4f8a2a00 (patch) | |
| tree | 0b143a8a647508855b573e79da95de91c99554d2 /samples | |
| parent | e6eb4fdf8e624fe7f7d037fee6c3363f18cb184b (diff) | |
xtensa: fix access to THREAD_RA/THREAD_SP/THREAD_DS
commit 52247123749cc3cbc30168b33ad8c69515c96d23 upstream.
With SMP and a lot of debug options enabled task_struct::thread gets out
of reach of s32i/l32i instructions with base pointing at task_struct,
breaking build with the following messages:
arch/xtensa/kernel/entry.S: Assembler messages:
arch/xtensa/kernel/entry.S:1002: Error: operand 3 of 'l32i.n' has invalid value '1048'
arch/xtensa/kernel/entry.S:1831: Error: operand 3 of 's32i.n' has invalid value '1040'
arch/xtensa/kernel/entry.S:1832: Error: operand 3 of 's32i.n' has invalid value '1044'
Change base to point to task_struct::thread in such cases.
Don't use a10 in _switch_to to save/restore prev pointer as a2 is not
clobbered.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'samples')
0 files changed, 0 insertions, 0 deletions