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Incremental build not working correctly [message #1842478]

Mon, 21 June 2021 05:09

Eclipse User

Hi,

I am working with an Eclipse based IDE.
My workspace is composed of 3 projects:
1. BSP
2. A SW library
3. A system project that uses the BSP and library and builds the final target

I noticed that the incremental build has strange behavior.
On first clean - it build all the sources.
On following build nothing is built - as expected.
On a consecutive build - all the files in the 3rd project are built again.
Then nothing is built and then again everything is rebuilt.

How can I debug it?
How can I tell what is causing this behavior - is it a problematic configuration? Is it something that the IDE supplier changed in Eclipse? Is it a bug in Eclipse?

Which log files should I include/investigate to understand the root cause?

Cheers.

Re: Incremental build not working correctly [message #1842501 is a reply to message #1842478]

Mon, 21 June 2021 14:39

Eclipse User

We should not have to guess which language you are using and what it is that you are building in these projects. When you mention an "Eclipse-based IDE" perhaps you should consider that whomever has extended the base IDE might be the best folks to ask about it...

Re: Incremental build not working correctly [message #1842502 is a reply to message #1842501]

Mon, 21 June 2021 14:51

Eclipse User

Hi,

I am building C based projects.

I have tried contacting the vendor that supplied the IDE - but so far didn't get any response or support. I was hoping the good and professional folks of this community might more knowledgeable and can direct on where to look for and maybe what to look for.

I saw the following log files are created:
myproj_Debug.build.ui.log
But I didn't see any clue to why the incremental build triggered a full build.

There is also IDE.log file in the workspace. I didn't see anything useful there as well.

Here's the content of .\.metadata\.plugins\org.eclipse.cdt.ui\global-build.log

Nothing to build in platform 'trenz_wrapper'

17:36:11 **** Incremental Build of configuration Debug for project sw_c ****
make -j8 all
make: Nothing to be done for 'all'.
17:36:14 **** Incremental Build of configuration Debug for project myproj ****
make all
make: Nothing to be done for 'all'.
17:36:15 **** Incremental Build of configuration Debug for project myproj_system ****
make -j8 all

but on a consecutive build

Nothing to build in platform 'trenz_wrapper'

17:38:12 **** Incremental Build of configuration Debug for project sw_c ****
make -j8 all
make: Nothing to be done for 'all'.
17:38:15 **** Clean-only build of configuration Debug for project myproj****
make clean

Thanks.

Re: Incremental build not working correctly [message #1842514 is a reply to message #1842502]

Tue, 22 June 2021 01:42

Eclipse User

It will be better to ask in the CDT forum:

http://www.eclipse.org/forums/eclipse.tools.cdt

I assume that what gets build will depend on how you've specified the dependencies in your make files, but that too is just a guess. It's likely that someone answering your question will need to know what is in your make files...

Re: Incremental build not working correctly [message #1842515 is a reply to message #1842514]

Tue, 22 June 2021 01:46

Eclipse User

Thanks.
I will try in that forum.

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