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gdb: Add pre/post hooks to fix step, next, finish

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The gdb commands step, next and finish on the M3 core would
never make forward progress since there is almost always an
interrupt pending.  This is a known problem on the M3, and is
fixed by adding pre and post command hooks which mask and unmask
all ISRs on the M3 core.

Step, next and finish now work as expected, but care should be
taken when using these commands across any part of the code that
actually _needs_ the interrupts in order to make forward progress.

git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@622 ebee16cc-31ac-478f-84a7-5cbb03baadba
This commit is contained in:
stac 2010-05-14 04:32:17 +00:00 committed by stac
parent a43f579265
commit 0e3a5550ba
1 changed files with 24 additions and 0 deletions
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24
flight/Project/gdb/openpilot
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@ -2,3 +2,27 @@ target remote localhost:3333
monitor reset halt monitor reset halt
monitor cortex_m3 vector_catch all monitor cortex_m3 vector_catch all
file ./build/openpilot/OpenPilot.elf file ./build/openpilot/OpenPilot.elf
define hook-step
monitor cortex_m3 maskisr on
end
define hookpost-step
monitor cortex_m3 maskisr off
end
define hook-next
monitor cortex_m3 maskisr on
end
define hookpost-next
monitor cortex_m3 maskisr off
end
define hook-finish
monitor cortex_m3 maskisr on
end
define hookpost-finish
monitor cortex_m3 maskisr off
end