arch/arm: cortex_m: Disable DWT null-pointer exception detection #33126
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Null-pointer exception detection using DWT is currently incompatible with current openocd runner default implementation that leaves debug mode on by default. As a consequence, on all targets that use openocd runner, null-pointer exception detection using DWT will generated an assert. As a consequence, all tests are failing on such platforms. Disable this until openocd behavior is fixed (zephyrproject-rtos#32984) and enable the MPU based solution for now. Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
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galak
approved these changes
Mar 8, 2021
Default null pointer exception detection to the DWT solution instead of MPU based solution. Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
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nashif
approved these changes
Mar 9, 2021
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this fixes this issue for me #32966 |
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Null-pointer exception detection using DWT is currently incompatible
with current openocd runner default implementation that leaves debug
mode on by default.
As a consequence, on all targets that use openocd runner, null-pointer
exception detection using DWT will generated an assert.
As a consequence, all tests are failing on such platforms.
Disable this until openocd behavior is fixed (#32984)
Rationale: #31481 is a great addition, but given this is making a wide range of boards unusable, I think it's activation can wait #32984 to be fixed.
Signed-off-by: Erwan Gouriou erwan.gouriou@linaro.org
EDIT: Following discussion with @ioannisg and @galak, enable DWT based solution on Nordic based platforms