Re: [Valgrind-users] Fwd: Support Request

[Giuseppe A. <giu...@sa...>]

Hello,

thank you very much for your reply.

Since, as I've written before, I'm new to Linux could you please explain 
to me how I can actually do the two options?

- _you need to provide debug symbols for it_
If I've well understood I should install the library libc6-dbg on the 
board but where can I find this library for ARM / Angstrom platform?

- _you need to either stop your ld.so getting stripped in such a severe way_
What do I have to do to stop ld.so?

Thank you again for your help
Giuseppe


Il 18/03/2014 17:13, Tom Hughes ha scritto:
> On 18/03/14 15:40, Giuseppe Assalve wrote:
>
>> I'm trying to install Valgrind on an embedded linux platform (Angstrom
>> distribution).
>> I've cross-compiled it Valgrind correctly but when I try to launch it
>> (valgrind ls -al) on the board I have the following error:
>>
>> valgrind:  Fatal error at startup: a function redirection
>> valgrind:  which is mandatory for this platform-tool combination
>> valgrind:  cannot be set up.  Details of the redirection are:
>> valgrind:
>> valgrind:  A must-be-redirected function
>> valgrind:  whose name matches the pattern:      memcpy
>> valgrind:  in an object with soname matching: ld-linux.so.3
>> valgrind:  was not found whilst processing
>> valgrind:  symbols from the object with soname: ld-linux.so.3
>> valgrind:
>> valgrind:  Possible fixes: (1, short term): install glibc's debuginfo
>> valgrind:  package on this machine.  (2, longer term): ask the packagers
>> valgrind:  for your Linux distribution to please in future ship a non-
>> valgrind:  stripped ld.so (or whatever the dynamic linker .so is called)
>> valgrind:  that exports the above-named function using the standard
>> valgrind:  calling conventions for this platform.  The package you need
>> valgrind:  to install for fix (1) is called
>> valgrind:
>> valgrind:    On Debian, Ubuntu: libc6-dbg
>> valgrind:    On SuSE, openSuSE, Fedora, RHEL: glibc-debuginfo
>> valgrind:
>> valgrind:  Cannot continue -- exiting now.  Sorry.
>>
>> Could you please tell me how I can fix this problem?
>
> I believe the answer to your question is in the verbose message which 
> valgrind printed...
>
> To reiterate, you need to either stop your ld.so getting stripped in 
> such a severe way, or you need to provide debug symbols for it.
>
> Tom
>