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ETM: add "etm trigger_debug" command
authorDavid Brownell <dbrownell@users.sourceforge.net>
Sat, 19 Dec 2009 21:09:19 +0000 (13:09 -0800)
committerDavid Brownell <dbrownell@users.sourceforge.net>
Sat, 19 Dec 2009 21:09:19 +0000 (13:09 -0800)
commitabe8b43755fdbc4fe92b966c48b367159deff226
tree45ab3a2c03476db594f54c966d043fcb07b5fc28tree | snapshot
parent64934d9204dc854d40893634a66e29ece09ad578commit | diff
ETM: add "etm trigger_debug" command

In conjunction with manual register setup, this lets the ETM trigger
cause entry to debug state.   It should make it easier to test and
bugfix the ETM code, by enabling non-trace usage and isolating bugs
specific to thef ETM support.  (One current issue being that trace
data collection using the ETB doesn't yet behave.)

For example, many ARM9 cores with an ETM should be able to implement
four more (simple) breakpoints and two more (simple) watchpoints than
the EmbeddedICE supports.  Or, they should be able to support complex
breakpoints, incorporating ETM sequencer, counters, and/or subroutine
entry/exit criteria int criteria used to trigger debug entry.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
NEWS diff | blob | history
doc/openocd.texi diff | blob | history
src/target/etm.c diff | blob | history
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