[OE-core] ld problems with relocated toolchain

[Khem Raj]

On Monday, September 24, 2012, Jack Mitchell <ml at communistcode.co.uk> wrote:
> On 24/09/12 09:44, Laurentiu Palcu wrote:
>>
>> On 09/24/2012 11:37 AM, Jack Mitchell wrote:
>>>
>>> On 24/09/12 03:17, Khem Raj wrote:
>>>
>>> [snip]
>>>
>>>>
>>>> What does linker command looks like, its not in the above log you
posted.
>>>>
>>>>
>>> Hi Khem,
>>>
>>> Is this enough information?
>>>
>>> Building target: R0005
>>> Invoking: GCC C Linker
>>>
>>> arm-poky-linux-gnueabi-gcc
>>>
-L/home/jack/Projects/R0005-SDK-210912/sysroots/armv7a-vfp-neon-poky-linux-gnueabi/usr/lib
>>> -o "R0005"  ./src/webInterfaces/webInterface_rJSON.o
>>> ./src/webInterfaces/webInterface_sqlite.o
>>> ./src/webInterfaces/webInterface_webSockets.o
>>> ./src/storageInterfaces/sqlite.o ./src/management/management_database.o
>>> ./src/hardwareProtocols/hardwareProtocol_B092SPIImage.o
>>> ./src/hardwareProtocols/hardwareProtocol_axonSPI.o
>>> ./src/hardwareInterfaces/interface_gpio_mmap.o
>>> ./src/hardwareInterfaces/interface_gpio_sysfs.o
>>> ./src/hardwareInterfaces/interface_kMod.o
>>> ./src/hardwareInterfaces/interface_serial.o
>>> ./src/hardwareInterfaces/interface_spidev.o  ./src/B092/B092.o
>>> ./src/B092/B092_config.o ./src/B092/B092_database.o
>>> ./src/B092/B092_init.o ./src/B092/B092_socket.o
>>> ./src/B092/B092_thumbnail.o ./src/B092/BO92_data.o ./src/AX02/AX02.o
>>> ./src/AX02/AX02_PIDs.o ./src/AX02/AX02_config.o ./src/AX02/AX02_data.o
>>> ./src/AX02/AX02_database.o ./src/AX02/AX02_init.o ./src/AX02/AX02_log.o
>>> ./src/AX02/AX02_socket.o ./src/AX02/AX02_tables.o  ./src/R0005.o
>>> ./src/errors.o ./src/systemConfig.o   -lsqlite3 -ljansson -lwebsockets
>>> -lz -lpthread -ljpeg -lpng
>>>
>>>
/home/jack/Projects/R0005-SDK-210912/sysroots/x86_64-pokysdk-linux/usr/bin/armv7a-vfp-neon-poky-linux-gnueabi/../../libexec/armv7a-vfp-neon-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/4.7.2/ld:
>>> cannot find crt1.o: No such file or directory
>>>
/home/jack/Projects/R0005-SDK-210912/sysroots/x86_64-pokysdk-linux/usr/bin/armv7a-vfp-neon-poky-linux-gnueabi/../../libexec/armv7a-vfp-neon-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/4.7.2/ld:
>>> cannot find crti.o: No such file or directory
>>>
/home/jack/Projects/R0005-SDK-210912/sysroots/x86_64-pokysdk-linux/usr/bin/armv7a-vfp-neon-poky-linux-gnueabi/../../libexec/armv7a-vfp-neon-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/4.7.2/ld:
>>> cannot find crtbegin.o: No such file or directory
>>
>> Can you please try the little test app I wrote in order to test this? I
>> attached it in the bug. Let me know if it works.
>>
>>> /lib/libpthread.so.0: file not recognized: File format not recognized
>>
>> This is kind of weird... It looks like it tries to link against the host
>> libpthread library.
>
> I agree, I also can't find libpthread.so.0 in my sysroot either, only
libpthread.so, so maybe it is trying to fallback to host libs?
>

Libpthread.so should be a linker script stub and that might not be adjusted
for relocation since linker now will need sysroot option as the built in
defaults aren't valid after relocation

Btw I needed the real LD command which you will get with -v
> I have attached the output from the test cases you propsed and attached
them to the bug report.
>
> I also just tried passing the --sysroot= argument to no avail.
>
>>
>> Thanks,
>> Laurentiu
>>>
>>> collect2: error: ld returned 1 exit status
>>>
>>> make: *** [R0005] Error 1
>>>
>>> Regards,
>>>
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>
>
> --
>
>   Jack Mitchell (jack at embed.me.uk)
>   Embedded Systems Engineer
>   http://www.embed.me.uk
>
> --
>
>
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