[oe] ti-c6accel-1_01_00_01: link error

[Koen Kooi]

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On 30-12-10 20:09, Eric Bénard wrote:
> Hi Koen,
> 
> same problems exists with ti-dmai (which also shows another one as a
> bonus ;-)
> 
> oe master + angstrom-2010.x + beagleboard leads to :
> 
> .../... /usr/include -Dxdc_target_name__=arm/GCArmv5T -g -Wall -Werror
> -c -o obj/linux/Capture.omap3530.o470MV linux/Capture.c
> cc1: warnings being treated as errors
> In file included from
> /home/ebenard/OMAP/2010/angstrom-setup-scripts/build/tmp-angstrom_2010_x/sysroots/beagleboard-angstrom-linux-gnueabi/kernel/include/linux/videodev2.h:66:0,
> 
>                  from linux/Capture.c:43:
> /home/ebenard/OMAP/2010/angstrom-setup-scripts/build/tmp-angstrom_2010_x/sysroots/beagleboard-angstrom-linux-gnueabi/kernel/include/linux/types.h:13:2:
> error: #warning "Attempt to use kernel headers from user space, see
> http://kernelnewbies.org/KernelHeaders"
> make[1]: *** [obj/linux/Capture.omap3530.o470MV] Error 1
> 
> this can be "fixed" by removing -Werror in the makefile but then I meet
> the same problem as with ti-c6accel :
> 
> Linking linux/audio_decode1_omap3530.x470MV from appMain.omap3530.o470MV
> linux/main.omap3530.o470MV linux/audio_decode1_omap3530_config/linker.cmd..
> /home/ebenard/OMAP/2010/angstrom-setup-scripts/build/tmp-angstrom_2010_x/sysroots/i686-linux/usr/armv7a/bin/arm-angstrom-linux-gnueabi-gcc
>  -lpthread -lm
> -L/home/ebenard/OMAP/2010/angstrom-setup-scripts/build/tmp-angstrom_2010_x/sysroots/armv7a-angstrom-linux-gnueabi/usr/lib
> -lasound -Wl,-Map,linux/audio_decode1_omap3530.x470MV.map -o
> linux/audio_decode1_omap3530.x470MV appMain.omap3530.o470MV
> linux/main.omap3530.o470MV linux/audio_decode1_omap3530_config/linker.cmd
> /home/ebenard/OMAP/2010/angstrom-setup-scripts/build/tmp-angstrom_2010_x/sysroots/i686-linux/usr/armv7a/lib/gcc/arm-angstrom-linux-gnueabi/4.5.3/../../../../arm-angstrom-linux-gnueabi/bin/ld:
> warning: linux/audio_decode1_omap3530_config/linker.cmd contains output
> sections; did you forget -T?
> /home/ebenard/OMAP/2010/angstrom-setup-scripts/build/tmp-angstrom_2010_x/sysroots/i686-linux/usr/armv7a/lib/gcc/arm-angstrom-linux-gnueabi/4.5.3/../../../../arm-angstrom-linux-gnueabi/bin/ld:
> .gnu.attributes not found for insert
> collect2: ld returned 1 exit status

If you build the new xdctools with the linker hack (
http://cgit.openembedded.org/cgit.cgi/openembedded/commit/?id=7993e4ca7746a4ca9e7116cc76e6c1da32a76690
) then you only need a few changes to make it all build:

1) edit
conf/distro/include/angstrom-codec-engine-latest-preferred-versions.inc:

- -PREFERRED_VERSION_ti-linuxutils = "2_25_05_11"
+PREFERRED_VERSION_ti-linuxutils = "2_26_01_02"

- -PREFERRED_VERSION_ti-xdctools = "3_20_05_76"
+PREFERRED_VERSION_ti-xdctools = "3_20_06_81"

2) Add -fPIC to C_FLAGS in the c6accel soc/ Makefiles (plural)

3) remove -Werror from DMAI makefiles

4) remove -Werror from gstreamer-ti makefiles

That will get you a succesfull build, but you will have some runtime
problems. My current goal is to get c6accel working on my USRP E100 so
gnuradio can use that, so gst-ti is out of scope for that.

regards,

Koen
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