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eng: Document use of BSP family for defaults

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Update #4468.
This commit is contained in:
Sebastian Huber
2021-08-18 11:27:56 +02:00
parent bd4dedc192
commit d223ec99ae
2 changed files with 8 additions and 4 deletions
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4
eng/build-system.rst
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@@ -355,8 +355,8 @@ Add a Base BSP to a BSP Family
items ``spec:/build/bsps/arch/family/bsprst``, items ``spec:/build/bsps/arch/family/bsprst``,
``spec:/build/bsps/arch/family/bspuvw``, and ``spec:/build/bsps/arch/family/bspuvw``, and
``spec:/build/bsps/arch/family/bspxyz`` just define the name of the base ``spec:/build/bsps/arch/family/bspxyz`` just define the name of the base
BSP and set a link to the group item. The base BSP names can be used for BSP and set a link to the group item. The base BSP and BSP family names
example in the ``default-by-variant`` attribute of can be used for example in the ``default-by-variant`` attribute of
:ref:`SpecTypeBuildOptionItemType` items. The items linked by the BSP :ref:`SpecTypeBuildOptionItemType` items. The items linked by the BSP
items are shown using relative UIDs. items are shown using relative UIDs.

8
eng/req/items.rst
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@@ -719,8 +719,11 @@ default
default-by-variant default-by-variant
The attribute value shall be a list. Each list element shall be a The attribute value shall be a list. Each list element shall be a
:ref:`SpecTypeBuildOptionDefaultByVariant`. The list is processed from top :ref:`SpecTypeBuildOptionDefaultByVariant`. The list is checked two times
to bottom. If a matching variant is found, then the processing stops. and processed from top to bottom. Firstly, the base BSP name is used to
match with a variant. Secondly, the BSP family name prefixed by ``bsps/``
is used to match with a variant. If a matching variant is found, then the
processing stops.
description description
The attribute value shall be an optional string. It shall be the The attribute value shall be an optional string. It shall be the
@@ -750,6 +753,7 @@ Please have a look at the following example:
default-by-variant: default-by-variant:
- value: 9600 - value: 9600
variants: variants:
- bsps/powerpc/motorola_powerpc
- m68k/m5484FireEngine - m68k/m5484FireEngine
- powerpc/hsc_cm01 - powerpc/hsc_cm01
- value: 19200 - value: 19200