[fpc-devel] porting fpc to Blue Gene/P: a cthreads bug

[Jonas Maebe]

On 29 Jul 2009, at 15:50, Peter Popov wrote:

> I was able to trace it to the unwinding of the gcc exception handler  
> for the terminating thread. An obvious assertation fails (in unwind- 
> dw2.c), which means that some basic startup data of gcc is either 1)  
> messed up 2) not initialized.

The problem is probably that FPC either does not generate DWARF CFI  
info for Linux/PowerPC, or that the DWARF CFI info it generates is  
wrong.

> So, I have two related questions:
> 1. Is the pthread_exit(...) call essential in ThreadMain?

No. If you don't call pthread_exit, then the function resiult of  
ThreadMain will be reported as the thread exit value.


Jonas

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