Re: gdb trouble

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On 01/27/2010 08:12 PM, Neal Becker wrote:
> gdb-7.0.1-29.fc12.x86_64
> 
>>From time to time, I need to use gdb.  Today it's giving me a real hard 
> time.
> 
> Breakpoint 3, 0x000000000044f487 in 
> ACMTx<boost::random::mersenne_twister<unsigned int, 32, 624, 397, 31, 
> 2567483615u, 11, 7, 2636928640u, 15, 4022730752u, 18, 3346425566u> 
>> ::RandomTx() ()
> (gdb) s
> Single stepping until exit from function 
> _ZN5ACMTxIN5boost6random16mersenne_twisterIjLi32ELi624ELi397ELi31ELj2567483615ELi11ELi7ELj2636928640ELi15ELj4022730752ELi18ELj3346425566EEEE8RandomTxEv, 
> which has no line number information.
> 
> What's going on with the 'single stepping ..."?  Everything was compiled 
> with -g (and most or all without optimization).  What could cause the 'no 
> line number information'?

Hard to say, but it's probably not gdb's fault.  It's either a gcc bug or
perhaps you're in a synthetic function that really does correspond to no
source code.

Andrew.

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