Re: [PATCH] new version of fix gcc.c-torture/execute/20010124-1 on MIPS...

[Richard Henderson <rth at redhat dot com>]

On Fri, Sep 09, 2005 at 09:28:28AM -0700, David Daney wrote:
> + struct S {
> +   char stuff[1024];
> + };
> + 
> + union U {
> +   struct {
> +     int space;
> +     struct S s;
> +   } a;
> +   struct {
> +     struct S s;
> +     int space;
> +   } b;
> + };
> +   
> + struct S f(struct S *p)
> + {
> +   return *p;
> + }
> + 
> + void g(union U *p)
> + {
> + }

Only the memcpy needs to go in the lib file.

> + void *memcpy(void *a, const void *b, size_t len)
> + {
> +   if (a < b && a+len > b)
> +     abort ();
> +   if (b < a && b+len > a)
> +     abort ();
> +   return a;
> + }

And since this memcpy will now be called by the runtime before main,
it needs to actually implement memcpy.


r~