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Re: [PATCH] ppc64 libc-start changes


> On Fri, Sep 20, 2002 at 03:32:09PM -0500, Steve Munroe wrote:
> > 2002-09-20  Steven Munroe  <sjmunroe@us.ibm.com>
> >
> >          * sysdeps/powerpc/elf/libc-start.c: Stack references must be
> >          double word aligned for powerpc64.  Remove unnecessary
ElfW(auxv_t)
> >          casts.
> >
> > -      argc = *(int *__unbounded) stack_on_entry;
> > +      /* 32/64-bit agnostic load from stack */
> > +      temp_argc = *(long *__unbounded) stack_on_entry;
> > +      argc = (int)temp_argc;
>
> Any reason why argc = *(long *__unbounded) stack_on_entry;
> doesn't work?

Because argc is an int and sizeof(int) != sizeof(long) and powerpc is
bigendian (I need the lower 32-bits of a 64-bit dword).

I suppose argc = (int)(*(long *__unbounded) stack_on_entry); might work.

Is it really that important?



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