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(parent: 88592cc) | patch
armv7m_trace: stop getting traces from adapter at exit 78/5978/3
authorAntonio Borneo <borneo.antonio@gmail.com>
Mon, 14 Dec 2020 16:08:06 +0000 (17:08 +0100)
committerAntonio Borneo <borneo.antonio@gmail.com>
Sat, 26 Dec 2020 15:47:44 +0000 (15:47 +0000)
commit722f5797069bc233c8e1b71bdab283766d6be9b3
treea6a20838eab415f0d5ca1d14a8ce9a9e14c7014btree | snapshot
parent88592cc1a194b48946abc29503c57a6020b791e7commit | diff
armv7m_trace: stop getting traces from adapter at exit

If OpenOCD is reading trace data from the target, at exit it
should stop the adapter to gather data, but should left the target
still producing them.

Add a helper in armv7m_trace to disable the adapter's trace and
call it during OpenOCD teardown.

This also provides a workaround for an issue in the firmware of
ST-Link V3 till version V3J7. If the SWD connection is closed when
trace is active, at following connection the trace does not work
anymore.

Change-Id: I47ccab61405384938555096c5aca789eaa090d27
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5978
Reviewed-by: Jonathan McDowell <noodles-openocd@earth.li>
Tested-by: jenkins
src/target/armv7m_trace.c diff | blob | history
src/target/armv7m_trace.h diff | blob | history
src/target/cortex_m.c diff | blob | history
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