teaching gdb about new types?

Richard Silverman res@qoxp.net
Fri Apr 29 20:43:00 GMT 2011


On Fri, 29 Apr 2011, Paul Koning wrote:

> The simple answer is to get a copy of libc.so with debug symbols, and load that symbol table.  You don't have to replace the library itself to do that.
>
> 	paul

I know, thanks; but the host is Solaris, and Oracle doesn't appear to provide this (although I'm pursuing it with them.).  I could also build the OpenSolaris libc and hope they're close enough.  However, it really seems as if one ought to be able to do what I described.

- Richard

> On Apr 29, 2011, at 2:36 PM, Richard Silverman wrote:
>
>> Hello,
>>
>> This seems as if it should be simple, but I can't find an answer.  I would like to teach gdb about new types relevant to the program being debugged, which are not among the debugging info in the program.  A concrete example: I have a program which uses pthreads from libc.  It calls:
>>
>>       int pthread_cond_wait(pthread_cond_t *restrict cond,
>>           pthread_mutex_t *restrict mutex);
>>
>> ... and the argument types are defined in system header files.  But libc.so has no debugging info, so gdb doesn't know about these types, and can't interpret the arguments for me.  How can I teach gdb about these types?
>>
>> Thanks,
>>
>> - Richard
>
>
>



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