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| author | Ravi Bangoria <[email protected]> | 2016-11-22 09:25:59 +0000 |
|---|---|---|
| committer | Michael Ellerman <[email protected]> | 2017-02-15 09:02:25 +0000 |
| commit | c21a493a2b44650707d06741601894329486f2ad (patch) | |
| tree | bb69261a8546ba22975b07f47aff14b1b6414978 /scripts/gcc-plugins/cyc_complexity_plugin.c | |
| parent | powerpc/mm: Fix build break with BOOK3S_64=n and MEMORY_HOTPLUG=y (diff) | |
| download | kernel-c21a493a2b44650707d06741601894329486f2ad.tar.gz kernel-c21a493a2b44650707d06741601894329486f2ad.zip | |
powerpc/xmon: Fix data-breakpoint
Currently xmon data-breakpoint feature is broken.
Whenever there is a watchpoint match occurs, hw_breakpoint_handler will
be called by do_break via notifier chains mechanism. If watchpoint is
registered by xmon, hw_breakpoint_handler won't find any associated
perf_event and returns immediately with NOTIFY_STOP. Similarly, do_break
also returns without notifying to xmon.
Solve this by returning NOTIFY_DONE when hw_breakpoint_handler does not
find any perf_event associated with matched watchpoint, rather than
NOTIFY_STOP, which tells the core code to continue calling the other
breakpoint handlers including the xmon one.
Cc: [email protected]
Signed-off-by: Ravi Bangoria <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Diffstat (limited to 'scripts/gcc-plugins/cyc_complexity_plugin.c')
0 files changed, 0 insertions, 0 deletions