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erofs-linux/tools/testing/selftests/breakpoints
Pratyush Anand f43365ee17 selftests: arm64: add test for unaligned/inexact watchpoint handling
ARM64 hardware expects 64bit aligned address for watchpoint invocation.
However, it provides byte selection method to select any number of
consecutive byte set within the range of 1-8.

This patch adds support to test all such byte selection option for
different memory write sizes.

Patch also adds a test for handling the case when the cpu does not
report an address which exactly matches one of the regions we have
been watching (which is a situation permitted by the spec if an
instruction accesses both watched and unwatched regions). The test
was failing on a MSM8996pro before this patch series and is
passing now.

Signed-off-by: Pavel Labath <[email protected]>
Signed-off-by: Pratyush Anand <[email protected]>
Signed-off-by: Will Deacon <[email protected]>
2016-11-18 17:26:15 +00:00
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