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| author |   Will Deacon <will.deacon@arm.com> | 2011-08-08 14:26:53 +0100 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2011-08-31 10:42:48 +0100 |
| commit | 0d352e3d006c9589f22580212c3822cf62b6d775 (patch) | |
| tree | 3bfaf9313cab84333380789471b7a9329f3f60fd /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | ARM: hw_breakpoint: add support for multiple watchpoints (diff) | |
| download | linux-dev-0d352e3d006c9589f22580212c3822cf62b6d775.tar.xz linux-dev-0d352e3d006c9589f22580212c3822cf62b6d775.zip | |
ARM: hw_breakpoint: trap undef instruction exceptions in reset_ctrl_regs
The ARM debug registers can only be accessed if the DBGSWENABLE signal
to the core is driven HIGH by the DAP. The architecture does not provide
a way to detect the value of this signal, so the best we can do is
register an undef_hook to trap debug register co-processor accesses and
then fail if the trap is taken.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions