#4548 closed enhancement (fixed)

Add RTEMS version option to waf configure

Reported by: Chris Johns Owned by: Sebastian Huber <sebastian.huber@…>
Priority: normal Milestone: 6.1
Component: build Version: 6
Severity: normal Keywords:
Cc: Blocked By:


We need a way to override the default release for testing. This is a developer option and is not for production. A waf option is considered the best way to manage this.

Change History (9)

comment:1 Changed on 11/13/21 at 13:53:19 by Sebastian Huber

This enhancement should be solved in a more general setting. What we need is the ability for maintainers to alter build system variables which a user should not be able to change.

What we could do is using an _ prefix for internal build system variables which may be changed by the config.ini file if an --rtems-maintainer-mode option is given at the configure command line.

An alternative would be a get-option option action (similar to set-value) which uses a command line specified value if it is available. We could also add this feature to set-value.

Last edited on 11/13/21 at 14:24:33 by Sebastian Huber (previous) (diff)

comment:2 Changed on 11/14/21 at 02:56:59 by Chris Johns

I think maintainer experiments should be done with spec file changes on feature branches. My concern about a generic method from the command line, INI file or any other method is the testable dependencies it exposes. I feel what we have and where we are at is a good compromise between the web of options we had with autoconf's configure and the ever present complexity of build and BSP options we have to have.

I agree the implementation of how to manage this should follow reasonable design paths but I think the type of action needed has to be explicit with wscript or spec file changes.

I have added a call named item_set_action_value() that takes a path and value. The value needs to be of a type and nature that matches the action. The code to set the major version from the command line is:

    if conf.options.rtems_version is not None:
        item_set_action_value(conf, '/cpukit/optvermaj/set-value', conf.options.rtems_version)

I think a path to address an item is a suitable abstraction. This version value update happens before the items are processed by configure which is important.

Last edited on 11/14/21 at 02:58:03 by Chris Johns (previous) (diff)

comment:3 Changed on 11/17/21 at 08:12:02 by Sebastian Huber <sebastian.huber@…>

In a0650f5f/rtems:

build: Support command line specified options

Update #4548.

comment:4 Changed on 11/17/21 at 08:12:05 by Sebastian Huber <sebastian.huber@…>

In f06dd3e/rtems:

build: Optional RTEMS_MAJOR via command line

Update #4548.

comment:5 Changed on 11/17/21 at 08:12:09 by Sebastian Huber <sebastian.huber@…>

In c1395ca0/rtems:

build: Add --rtems-version command line option

Update #4548.

comment:6 Changed on 12/17/21 at 17:22:19 by Joel Sherrill

Resolution: fixed
Status: newclosed

Closing. This is in the tree now.

comment:7 Changed on 01/11/22 at 15:47:42 by Sebastian Huber <sebastian.huber@…>

Owner: set to Sebastian Huber <sebastian.huber@…>

In fa1c18e/rtems-docs:

eng: Document get-string-command-line action

Close #4548.

comment:8 Changed on 01/11/22 at 15:56:22 by Sebastian Huber <sebastian.huber@…>

In 1ba0f41/rtems-docs:

eng: Document get-string-command-line action

Update #4548.

comment:9 Changed on 03/18/22 at 13:48:30 by Sebastian Huber <sebastian.huber@…>

In 1a5991e/rtems:

build: Apply command line options to all variants

Update #4548.

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