Re: [Pnet-developers] ILTypeIdentical

[Simon Posnjak]

V pon, 25.10.2004 ob 10:58 je Rhys Weatherley napisal(a):
> It should only be necessary for the start of a malloc'ed region to be 
> aligned.  
> The ILType pointers refer to the start of a structure, not something in the 
> middle.  The alignment of other fields shouldn't matter.
> 
> I think however I am beginning to see the true problem.  ILType structures 
> are 
> normally allocated from a memory pool, which allocates structures on a 
> multiple of IL_BEST_ALIGNMENT (defined in "include/il_align.h").
> 
> Pnet tries to automagically determine the best alignment by measuring 
> structure padding.  If, as you say, gcc packs everything with a sub-4 
> alignment value, then this could cause IL_BEST_ALIGNMENT to end up being 1 or 
> 2 or something similarly small.
> 
> This is easy to fix.  Add the following to the end of "il_align.h":
> 
> #ifdef cris
> #undef IL_BEST_ALIGNMENT
> #define IL_BEST_ALIGNMENT 4
> #endif
> 
> where "cris" is whatever macro you need to use to detect your CPU.
THANK YOU! That did the trick. I just successfully run helloWorld
example on CRIS.

I will sent the patches in a few hours.

                Regards Simon