[yocto] How to add libraries to poky toolchain

[Esponde, Joel]

Hi,



If the library is already in the image you are using, you should be able to build an SDK with that library by using this command:

                $ bitbake image -c populate_sdk



Here is the official documentation about that feature:

http://www.yoctoproject.org/docs/latest/mega-manual/mega-manual.html#sdk-building-an-sdk-installer



Joël Esponde

Honeywell | Sensing and Productivity Solutions



> -----Message d'origine-----

> De : yocto-bounces at yoctoproject.org [mailto:yocto-

> bounces at yoctoproject.org] De la part de Daniel.

> Envoyé : vendredi 15 avril 2016 20:57

> À : Matthew Clark

> Cc : yocto at yoctoproject.org

> Objet : Re: [yocto] How to add libraries to poky toolchain

>

> I may suggest something, run `bitbake meta-ide-support' and then use

> tmp/environment-*.sh to setup environment.

> After that go to your software folder and run something like:

> ./configure ${CONFIGURE_FLAGS}

>

> Here is a little text file that I saved to remember how to compile libfprint with

> yocto's toolchain from tmp/ folder.

> http://pastebin.com/hyzrd3up

>

> Regards,

>

> 2016-04-15 15:38 GMT-03:00 Matthew Clark <linux.matthew at gmail.com<mailto:linux.matthew at gmail.com>>:

> > I'm trying to cross build a package with a configure script and I'm

> > running into a problem because it can't find a missing library

> > dependency:

> >

> > arm-poky-linux-gnueabi-gcc  -march=armv7-a -mfloat-abi=hard -

> mfpu=neon

> > -mtune=cortex-a8

> > --sysroot=/opt/poky/1.8/sysroots/cortexa8hf-vfp-neon-poky-linux-

> gnueab

> > i

> > -o conftest

> > -O2 -pipe -g -feliminate-unused-debug-types  -Wl,-O1

> > -Wl,--hash-style=gnu -Wl,--as-needed myconftest.c -lgdbm

> >

> > /opt/poky/1.8/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-

> linux-gnueabi/gcc/arm-poky-linux-gnueabi/4.9.2/ld:

> > cannot find -lgdbm

> > collect2: error: ld returned 1 exit status

> >

> > A quick look shows there's no libgdbm in

> > /opt/poky/1.8/sysroots/cortexa8hf-vfp-neon-poky-linux-gnueabi folder,

> > though it is in /opt/poky/1.8/sysroots/x86_64-pokysdk-linux (which, of

> > course, is for 86_64, not ARM)

> >

> > I'd bitbaked the meta-toolchain and installed the .sh file, but

> > apparently I need to add more libraries.  What's the best way to do

> > that?  Is there an additional package I need to bitbake?   I can

> > kludge it myself, by manually copying stuff into

> > /opt/poky/1.8/sysroots/cortexa8hf-vfp-neon-poky-linux-gnueabi but I'd

> > much rather have something more elegant so I can replicate it to other

> > development machines.

> >

> > Thanks.

> >

> > Matt

> > --

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> > https://lists.yoctoproject.org/listinfo/yocto

>

>

>

> --

> "Do or do not. There is no try"

>   Yoda Master

> --

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