On Fri, 2016-03-04 at 15:06 +0100, Pascal Bach wrote: > > It really depends on your view of what the sysroot is used for. We > > intentionally strip a variety of things out of it as things work > > today > > basically for size/performance reasons. If we start putting > > debugging > > source in there, it will become huge and this will image the size > > of > > things like eSDK and affect the speed of operations like building > > from > > sstate. > > From my point of view debugging from sysroots is not mandatory if I > can find a suitable alternative. > One thing I want to avoid is to install -dbg packages to my image. > > What I currently do is the following: > > 1. Enable Debugfs generation using: `IMAGE_GEN_DEBUGFS = "1"` > 2. Switch debug split style to: `PACKAGE_DEBUG_SPLIT_STYLE = "debug > -file-directory"` > > After building the image I end up with a rootfs and a rootfs-dbg > > 3. Extract both rootfs and rootfs-dbg somewhere (/home/projects) > 4. Setup gdb with the following .gdbinit: > > ``` > set sysroot /home/projects/rootfs > set debug-file-directory /home/projects/rootfs-dbg/usr/lib/debug > set substitute-path /usr/src/debug /home/projects/rootfs > -dbg/usr/src/debug > ``` > > With this setup I'm able to debug trough all libraries on the system. > So so far so good. > > However for this to work I need to change the > `PACKAGE_DEBUG_SPLIT_STYLE` to a non default and this made me wonder > if I missed something. > - Is there a way to get this setup working with the default ".debug" > style of OE? > - If not why is the .debug style the default instead of "debug-file > -directory"? > - Is there any documentation? I was unable to find anything more than > [1] in the Yocto Mega manual. > - Is there some best practice I missed?
Using this method is a supported approach. I'm a little surprised .debug directories don't work. Have you tried just setting: set sysroot /home/projects/rootfs-dbg set substitute-path /usr/src/debug /home/projects/rootfs -bbg/usr/src/debug as I believe it should work with IMAGE_GEN_DEBUGFS=1 "out the box". If it doesn't that is a bug and we should try and look into fixing that. Cheers, Richard -- _______________________________________________ Openembedded-core mailing list Openembedded-core@lists.openembedded.org http://lists.openembedded.org/mailman/listinfo/openembedded-core
