Re: Non-static variables and nested function pointers [bug #28392]

[Grégoire Sutre]

Seth Goldberg wrote:

>   Your problem is probably lack of executable stack support, or at least 
> you haven't linked your application with a linker mapfile that specifies 
> an executable stack -- the callbacks require the use of trampolines to 
> access local variables, which require an executable stack.

Thanks a lot for your answer ! That explains it :-)

I tried linking with -Wl,-z,execstack, but with no success, even though 
readelf shows a new header with this option:

Type           Offset   VirtAddr   PhysAddr   FileSiz MemSiz  Flg Align
GNU_STACK      0x000000 0x00000000 0x00000000 0x00000 0x00000 RWE 0x4

But the problem may come from NetBSD's default policy of non-executable 
stack on i386 (http://www.netbsd.org/docs/kernel/non-exec.html).

I'll have to dig further...  Thanks again,

Grégoire