[yocto] Linking of external libraries in the recipe

[Khem Raj]

On Sat, Mar 14, 2015 at 11:23 PM, Priya Agarwal
<priya_agarwal at students.iitmandi.ac.in> wrote:
> I wrote the following in squid_3.4.7.bbappend:
>
> DPENDS_append = "usdpaa"

DEPENDS += "usdpaa" should be better here.

> EXTRA_OECONF_append = "
> LDFLAGS=-L/media/NewVolume/yocto/build_t4240qds_release/tmp/sysroots/t4240qds/usr/lib/
> \

This is not ok. you are hardcoding sysroot. You should rather use
LDFLAGS='-L=/usr/lib'

>             LIBS=-lusdpaa_dma -lusdpaa_dma_mem -lusdpaa_of -lusdpaa_fman
> -lusdpaa_qbman -lusdpaa_syscfg \

may be you should include LIBS in quotes ?

>
> CXXFLAGS=-I/media/NewVolume/yocto/build_t4240qds_release/tmp/sysroots/t4240qds/usr/include/"
>
> So the error is that it is not able to recognize the option
> -lusdpaa_dma_mem. ( I tried linking only 1 linrary, then it worked but when
> I link more than 1 the 2nd one is unrecognized). oe_runconf is failing
> basically. How to link all the libraries successfully?
>
> Basically I have many static libraries in
> /media/NewVolume/yocto/build_t4240qds_release/tmp/sysroots/t4240qds/usr/lib/
> and I want to link all of them while building squid code. To do that I need
> to run ./configure with these extra parameters LDFLAGS,LIBS,CXXFLAGS.
>
>
>
> On Thu, Mar 12, 2015 at 10:39 PM, Priya Agarwal
> <priya_agarwal at students.iitmandi.ac.in> wrote:
>>
>> Okay I think I understood. It has to be DEPENDS = "usdpaa" . Basically the
>> recipe which is building the libraries is
>> /meta-fsl-ppc/recipe-tools/usdpaa/usdpaa_git.bb.
>> Thanks.
>>
>> On Thu, Mar 12, 2015 at 9:58 PM, Priya Agarwal
>> <priya_agarwal at students.iitmandi.ac.in> wrote:
>>>>
>>>> If the libraries are already generated during the build it might be a
>>>> case where you just DEPENDS_append = " <libraryproviderpackage>" at
>>>>
>>>> he .bbappend file
>>>
>>>
>>> I know where the libraries are but how do I make out which is the
>>> package.
>>> (The needed '.a' files are in ..../usdpaa/git-r5/git/lib_powerpc/*)
>>>
>>>
>>>
>>>
>>>
>>> On Thu, Mar 12, 2015 at 9:23 PM, Benjamin Esquivel
>>> <benjamin.esquivel at linux.intel.com> wrote:
>>>>
>>>> On Thu, 2015-03-12 at 18:00 +0530, Priya Agarwal wrote:
>>>> > Hello,
>>>> >
>>>> >
>>>> > I have taken a recipe for the package squid from OpenEmbedded.org and
>>>> > have built it along with the kernel image.
>>>> >
>>>> >
>>>> > Now I want to edit its recipe so that it will include some external
>>>> > libraries.
>>>> > But these libraries are the ones that are generated during the build.
>>>> > So how do I edit the recipe to include those libraries?
>>>> >
>>>> Hi Priya, if you want to use a recipe and make some modifications to
>>>> it's behavior it is recommended that you do it via a .bbappend file
>>>>
>>>>
>>>> http://www.yoctoproject.org/docs/1.7.1/dev-manual/dev-manual.html#using-bbappend-files
>>>>
>>>> If the libraries are already generated during the build it might be a
>>>> case where you just DEPENDS_append = " <libraryproviderpackage>" at
>>>> the .bbappend file. When the dependiencies are resolved prior your
>>>> recipe is built, the headers and libraries are placed in a special part
>>>> of the working directory that the recipes know where to look for (if
>>>> they don't deviate of the standard, of course).
>>>>
>>>> >
>>>> > Location of
>>>> > library:  ../yocto/<build-directory>/............/libusdpaa.a
>>>> >
>>>> >
>>>> >
>>>> > currently the do_compile task is failing as I have used an extra
>>>> > function whose library I haven't included. Snippet of the error:
>>>> >
>>>> > | main.cc: In function 'int SquidMainSafe(int, char**)':
>>>> > | main.cc:1259:10: error: 'of_init' was not declared in this scope
>>>> > | make[3]: *** [main.o] Error 1
>>>> > | make[3]: *** Waiting for unfinished jobs....
>>>> > | make[3]: Leaving directory
>>>> >
>>>> > `/media/NewVolume/yocto/build_t4240qds_release/tmp/work/ppce6500-fsl_networking-linux/squid/3.4.7-r0/squid-3.4.7/src'
>>>> > | make[2]: *** [all-recursive] Error 1
>>>> > | make[2]: Leaving directory
>>>> >
>>>> > `/media/NewVolume/yocto/build_t4240qds_release/tmp/work/ppce6500-fsl_networking-linux/squid/3.4.7-r0/squid-3.4.7/src'
>>>> > | make[1]: *** [all] Error 2
>>>> > | make[1]: Leaving directory
>>>> >
>>>> > `/media/NewVolume/yocto/build_t4240qds_release/tmp/work/ppce6500-fsl_networking-linux/squid/3.4.7-r0/squid-3.4.7/src'
>>>> > | make: *** [all-recursive] Error 1
>>>> > | ERROR: oe_runmake failed
>>>> > | ERROR: Function failed: do_compile
>>>> > (see
>>>> > /media/NewVolume/yocto/build_t4240qds_release/tmp/work/ppce6500-fsl_networking-linux/squid/3.4.7-r0/temp/log.do_compile.28810
>>>> > for further information)
>>>> > ERROR: Task 799
>>>> >
>>>> > (/media/NewVolume/yocto/meta-oe/meta-networking/recipes-daemons/squid/squid_3.4.7.bb,
>>>> > do_compile) failed with exit code '1'
>>>> >
>>>> >
>>>> > I have attached my recipe.
>>>> >
>>>> >
>>>> >
>>>>
>>>>
>>>> --
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>>>> yocto at yoctoproject.org
>>>> https://lists.yoctoproject.org/listinfo/yocto
>>>
>>>
>>
>
>
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