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Commit 8a574cfa authored by Markos Chandras's avatar Markos Chandras Committed by Ralf Baechle
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MIPS: mcount: Adjust stack pointer for static trace in MIPS32



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 58b69401
(MIPS: Function tracer: Fix broken function tracing).

Commit ad8c3969 ("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: default avatarMarkos Chandras <markos.chandras@imgtec.com>
Cc: <stable@vger.kernel.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7792/


Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent c8c0da6b
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