** Changed in: amd
Status: Incomplete => Won't Fix
** Changed in: linux (Ubuntu)
Status: Incomplete => Fix Released
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https://bugs.launchpad.net/bugs/1117548
Title:
perf: Add support for hardware breakpoint address masks
Status in amd:
Won't Fix
Status in linux package in Ubuntu:
Fix Released
Bug description:
The following patchset adds address masks to existing perf hardware
breakpoint mechanism to allow trapping on an address range (currently
only single address) on supported architectures.
perf uapi is updated, x86 AMD implementation (for AMD Family 16h and
beyond) is provided, and perf tool has been extended to do:
$ perf stat -e mem:0x1000:w:0xf a.out
^^^
"don't care" bit mask
which will count writes to [0x1000 ~ 0x1010)
This patch is upstream but not accepted yet:
https://lkml.org/lkml/2012/12/12/261
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