[uClibc]Re: nfs-utils

[Erik Andersen]

On Wed Aug 14, 2002 at 11:04:32AM +0900, Miles Bader wrote:
> Erik Andersen <andersen at codepoet.org> writes:
> > Basically, I've not implemented syscall on mips yet.
> 
> Is this something that's supposed to be implemented?

It is a good thing to add.  A number of apps use syscall()
to try and be more portable across libc versions.  For 
example, older glibc versions don't provide pivot_root,
so you will see apps that do this type of thing:

    #ifdef __NR_pivot_root
    int pivot_root(const char *new_root, const char *put_old)
    {
	return(syscall(__NR_pivot_root, option, fs_index, buf));
    }
    #else
    int pivot_root(const char * new_root,const char * put_old)
    {
	errno=ENOSYS;
	return -1;
    }
    #endif

The same sort of thing happens a lot for llseek (as I recall
samba does that).  So its actually fairly common,

 -Erik

--
Erik B. Andersen             http://codepoet-consulting.com/
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