Re: PPC link error (memset with -fno-builtin)

[metgerards]

Hollis Blanchard <address@hidden> writes:

> On Aug 24, 2004, at 2:35 PM, Hollis Blanchard wrote:
> 
> > I just tried to build grub2 from cvs on PPC and got this error:
> >     grubof-fs_hfs.o(.text+0xbc4): In function `grub_hfs_iterate_dir':
> >     fs/hfs.c:588: undefined reference to `memset'
> >     grubof-fs_hfs.o(.text+0xe74): In function `dir_hook':
> >     fs/hfs.c:728: undefined reference to `memset'
> 
> Reading just a little closer... this seems to do the trick:

Thanks for your report.

> +/* GCC emits references to memset() for struct initialization etc.  */
> +void *memset (void *s, int c, grub_size_t n)
> +  __attribute__ ((alias ("grub_memset")));

This is the same what is done for memcpy so I assume this is correct.
In your previous email you mentioned memmove and memcmp as well, I
think we need those too eventually.

Okuji, can I check this in and fix memmove and memcmp as well?

The GCC manual says about the alias attribute "Not all target machines
support this attribute".  If this is a problem we should consider
adding the functions and make them call the functions with the grub_
prefixes.

Thanks,
Marco