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| author | Douglas Anderson <dianders@chromium.org> | 2020-08-06 23:24:35 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-11-05 11:43:14 +0100 |
| commit | 13081d5ddb5882bf13e7884103d4f7f43c9b0f68 (patch) | |
| tree | f437c8a0122af0d2b0c25cba7d07ebad5d30541d /fs | |
| parent | df5b07f2172a159a4d9f0c280e6ecddba992ba35 (diff) | |
ARM: 8997/2: hw_breakpoint: Handle inexact watchpoint addresses
[ Upstream commit 22c9e58299e5f18274788ce54c03d4fb761e3c5d ]
This is commit fdfeff0f9e3d ("arm64: hw_breakpoint: Handle inexact
watchpoint addresses") but ported to arm32, which has the same
problem.
This problem was found by Android CTS tests, notably the
"watchpoint_imprecise" test [1]. I tested locally against a copycat
(simplified) version of the test though.
[1] https://android.googlesource.com/platform/bionic/+/master/tests/sys_ptrace_test.cpp
Link: https://lkml.kernel.org/r/20191019111216.1.I82eae759ca6dc28a245b043f485ca490e3015321@changeid
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'fs')
0 files changed, 0 insertions, 0 deletions