diff options
| author | Markos Chandras <markos.chandras@imgtec.com> | 2014-09-16 15:55:12 +0100 |
|---|---|---|
| committer | Zefan Li <lizefan@huawei.com> | 2014-12-01 18:02:38 +0800 |
| commit | 504c4611c9da8b2cade4a45a31376293a4d53ed1 (patch) | |
| tree | 04f9cece0aec0d44b4603095e5c5f7819c63801d /fs | |
| parent | 4fae6ccac642aa30d189dea30ef14306aad4d2d2 (diff) | |
MIPS: mcount: Adjust stack pointer for static trace in MIPS32
commit 8a574cfa2652545eb95595d38ac2a0bb501af0ae upstream.
Every mcount() call in the MIPS 32-bit kernel is done as follows:
[...]
move at, ra
jal _mcount
addiu sp, sp, -8
[...]
but upon returning from the mcount() function, the stack pointer
is not adjusted properly. This is explained in details in 58b69401c797
(MIPS: Function tracer: Fix broken function tracing).
Commit ad8c396936e3 ("MIPS: Unbreak function tracer for 64-bit kernel.)
fixed the stack manipulation for 64-bit but it didn't fix it completely
for MIPS32.
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7792/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Zefan Li <lizefan@huawei.com>
Diffstat (limited to 'fs')
0 files changed, 0 insertions, 0 deletions