On 21/10/2021 10:36, Chris Johns wrote:
Could you please answer the other parts of the email you cut because it would
help understand this stuff?
Specifically the opt* and user options. When is an option optional and when is
an option an option but not optional?
The option item files are used for both user options and internal options.
On 21/10/21 7:09 pm, Sebastian Huber wrote:
On 21/10/2021 10:06, Chris Johns wrote:
KeyError: '/cpukit/optlibddebugger'
You have to admit this is a horrible error message. It provides no insight into
problem or the solution.
Looks like a typo. Maybe use optlibdebugger?
Yes it was. Thanks. However I am still confused.
If I add optlibdebugger to cpuopts.yml which is:
build-type: config-header
I would expect libdl and libdebugger to appear in cpuopts.h as enable variables
but they do not?
What the option items to is defined by the actions attribute, for
example (spec/build/cpukit/optlibdl.yml):
actions:
- set-value: true
- env-enable: null
This adds the option name to the enabled set.
Why are they in this YAML file?
This is to order the build properly.
The the libdebugger YAML file I need:
enabled-by: BUILD_LIBDEBUGGER
or:
enabled-by:
- arm
- i386
If the option file adding BUILD_LIBDEBUGGER to the enabled set is
processed before the libdebugger.yml and it uses the same enabled-by
expression, then you can use both.
however `enabled-by` is not in:
https://docs.rtems.org/branches/master/eng/req/items.html#spectypebuildlibraryitemtype
Is it OK to do this?
Yes, just follow the "refines" link to the root type.
It is great this is working but it is confusing understanding why and that means
it is hard to know what you can do and not do?
The items have a fixed set of top-level attributes which are all
documented. What you should definitely not do is adding new attributes
to existing files. This is an absolute no go.
We should gradually improve the documentation. Maybe the enabled-by
attribute needs more explanations.
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