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| author | Guilherme G. Piccoli <[email protected]> | 2017-03-22 16:27:51 -0300 |
|---|---|---|
| committer | Michael Ellerman <[email protected]> | 2017-03-28 10:52:01 +1100 |
| commit | de78ae6c9ef55d9ded036c8e29d9364e1ce5f6b7 (patch) | |
| tree | e70328b63d61c53260098aef326628845f62d321 /tools/perf/scripts/python/syscall-counts.py | |
| parent | b561783c7bfd4bcb18ad30e1410ee19500c36a7c (diff) | |
powerpc/xmon: add debugfs entry for xmon
Currently the xmon debugger is set only via kernel boot command-line.
It's disabled by default, and can be enabled with "xmon=on" on the
command-line. Also, xmon may be accessed via sysrq mechanism.
But we cannot enable/disable xmon in runtime, it needs kernel reload.
This patch introduces a debugfs entry for xmon, allowing user to query
its current state and change it if desired. Basically, the "xmon" file
to read from/write to is under the debugfs mount point, on powerpc
directory. It's a simple attribute, value 0 meaning xmon is disabled
and value 1 the opposite. Writing these states to the file will take
immediate effect in the debugger.
Signed-off-by: Guilherme G. Piccoli <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts.py')
0 files changed, 0 insertions, 0 deletions