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doc: add HW stack protection enabling in the board porting guidelines

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Mention in the board porting guidelines the recommendation
to enable by default the HW Stack Protection feature, and
the rationale behind it.

Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
This commit is contained in:
Ioannis Glaropoulos 2020-10-15 11:22:34 +02:00 • committed by Maureen Helm
commit 38dd4683c6
1 changed files with 4 additions and 1 deletions
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5
doc/guides/porting/board_porting.rst
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@ -432,7 +432,10 @@ while porting.
- It is recommended to enable the MPU by default, if there is support for it
in hardware. For boards with limited memory resources it is acceptable to
disable it.
disable it. When the MPU is enabled, it is recommended to also enable
hardware stack protection (CONFIG_HW_STACK_PROTECTION=y) and, thus, allow the
kernel to detect stack overflows when the system is running in privileged
mode.
.. _flash-and-debug-support: