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| author | David Brownell <dbrownell@users.sourceforge.net> | 2010-01-13 03:16:37 -0800 |
|---|---|---|
| committer | David Brownell <dbrownell@users.sourceforge.net> | 2010-01-13 03:17:23 -0800 |
| commit | d91941d5a01ca0b9d43571edc03ba18741076cca (patch) | |
| tree | 256234bf00622a98771f3d0634c196a4082356a9 /testing/examples/SAM7S256Test/test_rom.elf | |
| parent | b8e930e3bfc78f4a0582edb8b7cec44b5c9f4cad (diff) | |
| download | openocd_libswd-d91941d5a01ca0b9d43571edc03ba18741076cca.tar.gz openocd_libswd-d91941d5a01ca0b9d43571edc03ba18741076cca.tar.bz2 openocd_libswd-d91941d5a01ca0b9d43571edc03ba18741076cca.tar.xz openocd_libswd-d91941d5a01ca0b9d43571edc03ba18741076cca.zip | |
Cortex-M3: improved core exception handling
This updates three aspects of debugger/exception interactions:
- Save the user's "vector_catch" setting, and restore it after reset.
Previously, it was obliterated (rather annoyingly) each time.
- Don't catch BusFault and HardFault exceptions unless the user says
to do so. Target firmware may need to handle them.
- Don't modify SHCSR to prevent escalating BusFault to HardFault.
Target firmware may expect to handle it as a HardFault.
Those simplifications fix several bugs. In one annoying case, OpenOCD
would cause the target to lock up on ome faults which triggered after
the debugger disconnected.
NOTE: a known remaining issue is that OpenOCD can still leave DEMCR
set after an otherwise-clean OpenOCD shutdown.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Diffstat (limited to 'testing/examples/SAM7S256Test/test_rom.elf')
0 files changed, 0 insertions, 0 deletions