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Yocto Eclipse Plugin - Python 'undefined symbol'

DISCUSSION Jack Mitchell 2 participants 4 messages Jan 5, 2012 – Jan 9, 2012

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Jack Mitchell

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#0 lore raw

I encounter this error when trying to launch a debug session in Eclipse. I am using the master branch of poky, and the master branch of eclipse-plugin on an ArchLinux 64 host.

Any ideas, it seems as though the Python wasn't built with Unicode support but I can't tell if it is using the bitbake built python or host python...

Error creating session
/home/jack/yocto/poky-git/beagleInitial/tmp/sysroots/x86_64-linux/usr/bin/armv5te-poky-linux-gnueabi/arm-poky-linux-gnueabi-gdb: symbol lookup error: /home/jack/yocto/poky-git/beagleInitial/tmp/sysroots/x86_64-linux/usr/bin/armv5te-poky-linux-gnueabi/arm-poky-linux-gnueabi-gdb: undefined symbol: PyUnicodeUCS4_FromEncodedObject /home/jack/yocto/poky-git/beagleInitial/tmp/sysroots/x86_64-linux/usr/bin/armv5te-poky-linux-gnueabi/arm-poky-linux-gnueabi-gdb: symbol lookup error: /home/jack/yocto/poky-git/beagleInitial/tmp/sysroots/x86_64-linux/usr/bin/armv5te-poky-linux-gnueabi/arm-poky-linux-gnueabi-gdb: undefined symbol: PyUnicodeUCS4_FromEncodedObject /home/jack/yocto/poky-git/beagleInitial/tmp/sysroots/x86_64-linux/usr/bin/armv5te-poky-linux-gnueabi/arm-poky-linux-gnueabi-gdb: symbol lookup error: /home/jack/yocto/poky-git/beagleInitial/tmp/sysroots/x86_64-linux/usr/bin/armv5te-poky-linux-gnueabi/arm-poky-linux-gnueabi-gdb: undefined symbol: PyUnicodeUCS4_FromEncodedObject

Cheers,
Jack.

author
#1 lore raw
Quoted 9 lines · Jack Mitchell

I encounter this error when trying to launch a debug session in Eclipse. I am using the master branch of poky, and the master branch of eclipse-plugin on an ArchLinux 64 host.

Any ideas, it seems as though the Python wasn't built with Unicode support but I can't tell if it is using the bitbake built python or host python...

Error creating session
/home/jack/yocto/poky-git/beagleInitial/tmp/sysroots/x86_64-linux/usr/bin/armv5te-poky-linux-gnueabi/arm-poky-linux-gnueabi-gdb: symbol lookup error: /home/jack/yocto/poky-git/beagleInitial/tmp/sysroots/x86_64-linux/usr/bin/armv5te-poky-linux-gnueabi/arm-poky-linux-gnueabi-gdb: undefined symbol: PyUnicodeUCS4_FromEncodedObject /home/jack/yocto/poky-git/beagleInitial/tmp/sysroots/x86_64-linux/usr/bin/armv5te-poky-linux-gnueabi/arm-poky-linux-gnueabi-gdb: symbol lookup error: /home/jack/yocto/poky-git/beagleInitial/tmp/sysroots/x86_64-linux/usr/bin/armv5te-poky-linux-gnueabi/arm-poky-linux-gnueabi-gdb: undefined symbol: PyUnicodeUCS4_FromEncodedObject /home/jack/yocto/poky-git/beagleInitial/tmp/sysroots/x86_64-linux/usr/bin/armv5te-poky-linux-gnueabi/arm-poky-linux-gnueabi-gdb: symbol lookup error: /home/jack/yocto/poky-git/beagleInitial/tmp/sysroots/x86_64-linux/usr/bin/armv5te-poky-linux-gnueabi/arm-poky-linux-gnueabi-gdb: undefined symbol: PyUnicodeUCS4_FromEncodedObject

Quoted 6 lines

Cheers,
Jack.
_______________________________________________
yocto mailing list
[email protected]
https://lists.yoctoproject.org/listinfo/yocto

A cheeky ldd of the binary file gives me:

linux-vdso.so.1 => (0x00007fff68dff000)

    libreadline.so.6 => 
/home/jack/yocto/poky-git/beagleInitial/tmp/sysroots/x86_64-linux/usr/bin/armv5te-poky-linux-gnueabi/../../../usr/lib/libreadline.so.6 (0x00007fb5cf3af000)
    libncursesw.so.5 => /lib/libncursesw.so.5 (0x00007fb5cf152000)
    libz.so.1 => 
/home/jack/yocto/poky-git/beagleInitial/tmp/sysroots/x86_64-linux/usr/bin/armv5te-poky-linux-gnueabi/../../../usr/lib/libz.so.1 (0x00007fb5cef3b000)
    libm.so.6 => /lib/libm.so.6 (0x00007fb5cec47000)
    libpthread.so.0 => /lib/libpthread.so.0 (0x00007fb5cea2a000)
    libdl.so.2 => /lib/libdl.so.2 (0x00007fb5ce826000)
    libutil.so.1 => /lib/libutil.so.1 (0x00007fb5ce623000)
    libpython2.7.so.1.0 => 
/home/jack/yocto/poky-git/beagleInitial/tmp/sysroots/x86_64-linux/usr/bin/armv5te-poky-linux-gnueabi/../../../usr/lib/libpython2.7.so.1.0 (0x00007fb5ce248000)
    libexpat.so.1 => 
/home/jack/yocto/poky-git/beagleInitial/tmp/sysroots/x86_64-linux/usr/bin/armv5te-poky-linux-gnueabi/../../../usr/lib/libexpat.so.1 (0x00007fb5ce01e000)
    libc.so.6 => /lib/libc.so.6 (0x00007fb5cdc7b000)
    /lib/ld-linux-x86-64.so.2 (0x00007fb5cf5f1000)

Which seems to indicate that it is using the bitbake built python?

#2 lore raw

Jack,

I just tried with latest poky master built out toolchain and remote debug with latest Eclipse plug-in has no problem. My host is 32bit Ubuntu, but I don't think that makes any difference. So how up to date is your poky meta data, mine is as of this afternoon that contains 2 bug fixes that relevant to meta-toolchain build. Also, seems you're using the build system derived toolchain? If so, I can give that a try...

Thanks,
Jessica

-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Jack Mitchell
Sent: Thursday, January 05, 2012 8:27 AM
To: [email protected]
Subject: Re: [yocto] Yocto Eclipse Plugin - Python 'undefined symbol'

Quoted 22 lines · Jack Mitchell

I encounter this error when trying to launch a debug session in Eclipse. I am using the master branch of poky, and the master branch of eclipse-plugin on an ArchLinux 64 host.

Any ideas, it seems as though the Python wasn't built with Unicode support but I can't tell if it is using the bitbake built python or host python...

Error creating session /home/jack/yocto/poky-git/beagleInitial/tmp/sysroots/x86_64-linux/usr/bin/armv5te-poky-linux-gnueabi/arm-poky-linux-gnueabi-gdb:
symbol lookup error:
/home/jack/yocto/poky-git/beagleInitial/tmp/sysroots/x86_64-linux/usr/bin/armv5te-poky-linux-gnueabi/arm-poky-linux-gnueabi-gdb:
undefined symbol: PyUnicodeUCS4_FromEncodedObject /home/jack/yocto/poky-git/beagleInitial/tmp/sysroots/x86_64-linux/usr/bin/armv5te-poky-linux-gnueabi/arm-poky-linux-gnueabi-gdb:
symbol lookup error:
/home/jack/yocto/poky-git/beagleInitial/tmp/sysroots/x86_64-linux/usr/bin/armv5te-poky-linux-gnueabi/arm-poky-linux-gnueabi-gdb:
undefined symbol: PyUnicodeUCS4_FromEncodedObject /home/jack/yocto/poky-git/beagleInitial/tmp/sysroots/x86_64-linux/usr/bin/armv5te-poky-linux-gnueabi/arm-poky-linux-gnueabi-gdb:
symbol lookup error:
/home/jack/yocto/poky-git/beagleInitial/tmp/sysroots/x86_64-linux/usr/bin/armv5te-poky-linux-gnueabi/arm-poky-linux-gnueabi-gdb:
undefined symbol: PyUnicodeUCS4_FromEncodedObject

Quoted 6 lines

Cheers,
Jack.
_______________________________________________
yocto mailing list
[email protected]
https://lists.yoctoproject.org/listinfo/yocto

A cheeky ldd of the binary file gives me:

linux-vdso.so.1 => (0x00007fff68dff000)

     libreadline.so.6 =>
/home/jack/yocto/poky-git/beagleInitial/tmp/sysroots/x86_64-linux/usr/bin/armv5te-poky-linux-gnueabi/../../../usr/lib/libreadline.so.6
(0x00007fb5cf3af000)
     libncursesw.so.5 => /lib/libncursesw.so.5 (0x00007fb5cf152000)
     libz.so.1 =>
/home/jack/yocto/poky-git/beagleInitial/tmp/sysroots/x86_64-linux/usr/bin/armv5te-poky-linux-gnueabi/../../../usr/lib/libz.so.1
(0x00007fb5cef3b000)
     libm.so.6 => /lib/libm.so.6 (0x00007fb5cec47000)
     libpthread.so.0 => /lib/libpthread.so.0 (0x00007fb5cea2a000)
     libdl.so.2 => /lib/libdl.so.2 (0x00007fb5ce826000)
     libutil.so.1 => /lib/libutil.so.1 (0x00007fb5ce623000)
     libpython2.7.so.1.0 =>
/home/jack/yocto/poky-git/beagleInitial/tmp/sysroots/x86_64-linux/usr/bin/armv5te-poky-linux-gnueabi/../../../usr/lib/libpython2.7.so.1.0
(0x00007fb5ce248000)
     libexpat.so.1 =>
/home/jack/yocto/poky-git/beagleInitial/tmp/sysroots/x86_64-linux/usr/bin/armv5te-poky-linux-gnueabi/../../../usr/lib/libexpat.so.1
(0x00007fb5ce01e000)
     libc.so.6 => /lib/libc.so.6 (0x00007fb5cdc7b000)
     /lib/ld-linux-x86-64.so.2 (0x00007fb5cf5f1000)

Which seems to indicate that it is using the bitbake built python?

_______________________________________________
yocto mailing list
[email protected]
https://lists.yoctoproject.org/listinfo/yocto

author
#3 lore raw
Quoted 65 lines · Jessica

Jack,

I just tried with latest poky master built out toolchain and remote debug with latest Eclipse plug-in has no problem. My host is 32bit Ubuntu, but I don't think that makes any difference. So how up to date is your poky meta data, mine is as of this afternoon that contains 2 bug fixes that relevant to meta-toolchain build. Also, seems you're using the build system derived toolchain? If so, I can give that a try...

Thanks,
Jessica

-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Jack Mitchell
Sent: Thursday, January 05, 2012 8:27 AM
To: [email protected]
Subject: Re: [yocto] Yocto Eclipse Plugin - Python 'undefined symbol'

Quoted 22 lines · Jack Mitchell

I encounter this error when trying to launch a debug session in Eclipse. I am using the master branch of poky, and the master branch of eclipse-plugin on an ArchLinux 64 host.

Any ideas, it seems as though the Python wasn't built with Unicode support but I can't tell if it is using the bitbake built python or host python...

Error creating session /home/jack/yocto/poky-git/beagleInitial/tmp/sysroots/x86_64-linux/usr/bin/armv5te-poky-linux-gnueabi/arm-poky-linux-gnueabi-gdb:
symbol lookup error:
/home/jack/yocto/poky-git/beagleInitial/tmp/sysroots/x86_64-linux/usr/bin/armv5te-poky-linux-gnueabi/arm-poky-linux-gnueabi-gdb:
undefined symbol: PyUnicodeUCS4_FromEncodedObject /home/jack/yocto/poky-git/beagleInitial/tmp/sysroots/x86_64-linux/usr/bin/armv5te-poky-linux-gnueabi/arm-poky-linux-gnueabi-gdb:
symbol lookup error:
/home/jack/yocto/poky-git/beagleInitial/tmp/sysroots/x86_64-linux/usr/bin/armv5te-poky-linux-gnueabi/arm-poky-linux-gnueabi-gdb:
undefined symbol: PyUnicodeUCS4_FromEncodedObject /home/jack/yocto/poky-git/beagleInitial/tmp/sysroots/x86_64-linux/usr/bin/armv5te-poky-linux-gnueabi/arm-poky-linux-gnueabi-gdb:
symbol lookup error:
/home/jack/yocto/poky-git/beagleInitial/tmp/sysroots/x86_64-linux/usr/bin/armv5te-poky-linux-gnueabi/arm-poky-linux-gnueabi-gdb:
undefined symbol: PyUnicodeUCS4_FromEncodedObject

Quoted 6 lines

Cheers,
Jack.
_______________________________________________
yocto mailing list
[email protected]
https://lists.yoctoproject.org/listinfo/yocto

A cheeky ldd of the binary file gives me:

linux-vdso.so.1 => (0x00007fff68dff000)

      libreadline.so.6 =>
/home/jack/yocto/poky-git/beagleInitial/tmp/sysroots/x86_64-linux/usr/bin/armv5te-poky-linux-gnueabi/../../../usr/lib/libreadline.so.6
(0x00007fb5cf3af000)
      libncursesw.so.5 =>  /lib/libncursesw.so.5 (0x00007fb5cf152000)
      libz.so.1 =>
/home/jack/yocto/poky-git/beagleInitial/tmp/sysroots/x86_64-linux/usr/bin/armv5te-poky-linux-gnueabi/../../../usr/lib/libz.so.1
(0x00007fb5cef3b000)
      libm.so.6 =>  /lib/libm.so.6 (0x00007fb5cec47000)
      libpthread.so.0 =>  /lib/libpthread.so.0 (0x00007fb5cea2a000)
      libdl.so.2 =>  /lib/libdl.so.2 (0x00007fb5ce826000)
      libutil.so.1 =>  /lib/libutil.so.1 (0x00007fb5ce623000)
      libpython2.7.so.1.0 =>
/home/jack/yocto/poky-git/beagleInitial/tmp/sysroots/x86_64-linux/usr/bin/armv5te-poky-linux-gnueabi/../../../usr/lib/libpython2.7.so.1.0
(0x00007fb5ce248000)
      libexpat.so.1 =>
/home/jack/yocto/poky-git/beagleInitial/tmp/sysroots/x86_64-linux/usr/bin/armv5te-poky-linux-gnueabi/../../../usr/lib/libexpat.so.1
(0x00007fb5ce01e000)
      libc.so.6 =>  /lib/libc.so.6 (0x00007fb5cdc7b000)
      /lib/ld-linux-x86-64.so.2 (0x00007fb5cf5f1000)
Quoted 6 lines

Which seems to indicate that it is using the bitbake built python?

_______________________________________________
yocto mailing list
[email protected]
https://lists.yoctoproject.org/listinfo/yocto

Hi Jessica,

Thanks for your reply.

I am using the build system derived toolchain. I am using the latest poky.git as of 9:22am GMT 9th Jan. I am using the eclipse-plugin master branch. I tried again this morning and encountered the same error.

To run the eclipse plugin I am using the method of adding the source code to the eclipse project and then right clicking and running as an eclipse program. However I believe the issue is either with my Python, or with some other incompatibility in the script.

Best Regards,
Jack.