[SOLVED]Sdef file, or sdef files. Where are they located?

Legato Application Framework
1

I´m trying to automatically start spiService. I read that I need to edit sdef files to point to a mdef file. The thing is that I can´t find this system.sdef file or I don´t know where to put my custom sdef file.

2

Hello Luis,

Here a very basic custom system:

778×655 37.9 KB

In your legato framework directory: Create a symbolic link to your “custom” target definitions extra file (targetDefs.extra).

Example:

ln -sf /home/sylvain/work/temp/legato_example/my_custom_system/targetDefs targetDefs.extra

In my custom targetDefs file:

Root directory

export MY_ROOT = $(LEGATO_ROOT)/…/my_custom_system

Override the default sdef file

export SDEF_TO_USE = $(MY_ROOT)/custom.sdef

In your custom.sdef file:

//--------------------------------------------------------------------------------------------------
/**

  • Simple system definition that includes examples services and applications
    */
    //--------------------------------------------------------------------------------------------------

apps:
{
$MY_ROOT/apps/helloWorld/helloWorld.adef
}

And build (if your target is a WP85 device)

make wp85

Best regards,

3

Hello spator, thanks for your help.

In my WP85 I´ve got 6.10 Framework installed.
The legato directory looks like this:

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there isn´t a default sdef file. I have created system.sdef file and I have copied it in legato, but results are not what I expected.

I have read these lines in documentation:

----mdef File Load

----You can also use Legato’s mdef to load the pre-built kernel module.

----Create Kernel Module Definition .mdef hello.mdef file in any location with this preBuilt section:

----preBuilt: /path/to/kernel/module/ktest_module.ko

----Modify $LEGATO_ROOT/system.sdef (in Legato root dir) to include the kernelModule path:

----kernelModules:
----{ “path_to_hello.mdef” }

When I try to do

echo $LEGATO_PATH

I don´t get a result

4

Sorry I’m not understand your problem.

On your “screen capture”, you show your device file system.

You try to “find” $LEGATO_PATH on your device target ?

On target, $LEGATO_PATH don’t exist & your system is installed in /legato/systems/current.

Best regards,
Sylvain

5

Hello Sylvain,

I´m very new with Legato platform. I have never worked with a linux before. I thougt that Legato was going to help me to avoid diving into Linux, but it is not the case.

Now I think I can see things more clearly with your help.

Thanks

6

I have found what I was searching.

I found out that in Developer Studio, I can create Application Projects and System Projects. Creating a System Project you can edit an .sdef file and attach your applications to it