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| author | James Clark <james.clark@arm.com> | 2022-05-11 17:45:58 +0300 |
|---|---|---|
| committer | Suzuki K Poulose <suzuki.poulose@arm.com> | 2022-07-06 18:32:08 +0300 |
| commit | 2d693ed436a67db06d1473c22d4caee899a4e9d2 (patch) | |
| tree | c45eab26e0306d9bae1b3d8ea9f0e26944cfda90 /Documentation/trace/coresight | |
| parent | c06475910b526159adb02d82e7299e3151113285 (diff) | |
| download | linux-2d693ed436a67db06d1473c22d4caee899a4e9d2.tar.xz | |
coresight: Add config flag to enable branch broadcast
When enabled, all taken branch addresses are output, even if the branch
was because of a direct branch instruction. This enables reconstruction
of the program flow without having access to the memory image of the
code being executed.
Use bit 8 for the config option which would be the correct bit for
programming ETMv3. Although branch broadcast can't be enabled on ETMv3
because it's not in the define ETM3X_SUPPORTED_OPTIONS, using the
correct bit might help prevent future collisions or allow it to be
enabled if needed.
Signed-off-by: James Clark <james.clark@arm.com>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20220511144601.2257870-2-james.clark@arm.com
Diffstat (limited to 'Documentation/trace/coresight')
0 files changed, 0 insertions, 0 deletions