[poky] Library paths for Makefile based recipes

[Bruce Ashfield]

On Thu, Dec 30, 2010 at 4:08 PM, Bruce Ashfield
<bruce.ashfield at gmail.com> wrote:
> On Tue, Dec 28, 2010 at 7:54 PM, Darren Hart <dvhart at linux.intel.com> wrote:
>> On 12/28/2010 04:43 PM, Tian, Kevin wrote:
>>>>
>>>> From: Darren Hart
>>>> Sent: Wednesday, December 29, 2010 8:30 AM
>>>>
>>>> I'm working on packaging kernelshark ("make gui" for the trace-cmd recipe
>>>> basically). It fails trying to link to -lgtk-x11-2.0. I have added gtk+
>>>> as a DEPENDS and the library does exist in the sysroots. I have also
>>>> added
>>>> "inherit pkgconfig" as the project Makefile uses it extensively.
>>>>
>>>> gcc trace-view-main.o trace-view.o trace-view-store.o trace-filter.o
>>>> trace-compat.o
>>>> trace-hash.o libtracecmd.a -rdynamic -o trace-view -pthread -lgtk-x11-2.0
>>>> -lgdk-x11-2.0
>>>> -latk-1.0 -lgio-2.0 -lpangoft2-1.0 -lgdk_pixbuf-2.0 -lpangocairo-1.0
>>>> -lcairo -lpango-1.0
>>>> -lfreetype -lfontconfig -lgobject-2.0 -lgmodule-2.0 -lgthread-2.0 -lrt
>>>> -lglib-2.0   -L.
>>>> -ltracecmd -ldl
>>>> | /usr/bin/ld: cannot find -lgtk-x11-2.0
>>>
>>> it looks that native gcc/binutils are used here, instead of the cross one.
>>> Or else gcc
>>> should have a target prefix like i568-poky-linux-gcc, and ld should come
>>> from your
>>> native sysroot...
>>
>>
>> Yes, I noticed this too. Turns out the Makefile was forcing CC=gcc.
>>
>>
>>>
>>>> | collect2: ld returned 1 exit status
>>>> | make[1]: *** [trace-view] Error 1
>>>> | make[1]: *** Waiting for unfinished jobs....
>>>> | make: *** [gui] Error 2
>>>> | FATAL: oe_runmake failed
>>>> | ERROR: Task failed: ('function do_compile failed',
>>>>
>>>> '/vol/1/dvhart/poky.git/build/tmp/work/core2-poky-linux/kernelshark-1.0.4+git0+0d2522
>>>> 24626bd6926324f023a65f20c165232891-r0/temp/log.do_compile.12830')
>>>> NOTE: package
>>>> kernelshark-1.0.4+git0+0d252224626bd6926324f023a65f20c165232891-r0: task
>>>> do_compile: Failed
>>>> ERROR: Task 8
>>>>
>>>> (/home/dvhart/data/poky.git/meta/recipes-kernel/trace-cmd/kernelshark_git.bb,
>>>> do_compile) failed with 1
>>>> ERROR:
>>>> '/home/dvhart/data/poky.git/meta/recipes-kernel/trace-cmd/kernelshark_git.bb'
>>>> failed
>>>>
>>>> Without the "gui" target, trace-cmd doesn't link against anything outside
>>>> of
>>>> libc and ld, so the original recipe doesn't run into this.
>>>
>>> given earlier confusion, I'm worried whether original trace-cmd does work
>>> as expected,
>>> e.g. whether it runs on a non-x86 target?
>>
>>
>> I'm confident it does not. I'll be sending a fix for that along with my
>> kernelshark recipe.
>
> Something smells wrong here, must have been an update to trace-cmd,
> I ran trace-cmd on all architectures when doing the initial work. So I'm
> quite confident that it did :)

Hit send too soon. A quick check shows that we were carrying a patch
that modified trace-cmd a bit, which might explain how it was working
on all archs previously.

Bruce

>
> Bruce
>
>>
>>
>>>
>>>>
>>>> How does bitbake try to make the library path available to a make based
>>>> project? I've tried various incantations from other non-autotools gtk+
>>>> based recipes:
>>>>
>>>> do_compile_prepend = " \
>>>>        export LDFLAGS='${LDFLAGS} `${STAGING_BINDIR_NATIVE}/pkg-config
>>>> gtk+-2.0 --libs`'; \
>>>>       export CFLAGS='${CFLAGS} -I./ `${STAGING_BINDIR_NATIVE}/pkg-config
>>>> gtk+-2.0 --cflags`'; "
>>>>
>>>> export VERBOSE=1
>>>> CFLAGS += "-L ${STAGING_LIBDIR}"
>>>> LDFLAGS += "-L ${STAGING_LIBDIR}"
>>>> CFLAGS_prepend = "-L ${STAGING_LIBDIR}"
>>>> LDFLAGS_prepend = "-L ${STAGING_LIBDIR}"
>>>>
>>>> However, these don't appear to impact the commands executed by the
>>>> project
>>>> Makefile (despite the fact that it tries to import existing CFLAGS).
>>>>
>>>
>>> No idea here. You may need check the Makefile carefully whether there's
>>> any
>>> tricky lines breaking things here... At least you may change Makefile
>>> directly first. :-)
>>
>> Yes, this is the path I took. Now working back up the stack to try and get
>> it working with poky.
>>
>> Thanks,
>>
>> --
>> Darren Hart
>> Yocto Linux Kernel
>> _______________________________________________
>> poky mailing list
>> poky at yoctoproject.org
>> https://lists.yoctoproject.org/listinfo/poky
>>
>
>
>
> --
> "Thou shalt not follow the NULL pointer, for chaos and madness await
> thee at its end"
>



-- 
"Thou shalt not follow the NULL pointer, for chaos and madness await
thee at its end"