[uClibc] PATCH: use __libc_gettimeofday instead of gettimeofday

[Joakim Tjernlund]

> On Wed, 20 Oct 2004, Joakim Tjernlund wrote:
> 
> > > On Wed, 20 Oct 2004, Joakim Tjernlund wrote:
> > > 
> > > > > > 
> > > > > > > If it would be acceptable, I would do the same for
> > > > > > > strcpy,strncat,strlen,strncpy,sigaction,kill,sigprocmask
> > > > > > > (see last proposed patch in the bug report)
> > > > > > 
> > > > > > Does the propolice patch really modify all of these libc
> > > > > > internals?
> > > > > 
> > > > > The propolice patch does not modify them, it happens only if the user 
> > > > > redefines them (see bug report)
> > > > > 
> > > > > Peter
> > > > 
> > > > I think you also need to "hide" these internal functions, otherwise a
> > > > user could just as well redefine the internal functions.
> > > 
> > > an #ifdef _LIBC would be sufficient?
> > 
> > No, uClibc does not support attribute_hidden, INTUSE, INDDEF etc. as glibc
> > does(see include libc_symbols.h in glibc).
> > 
> > That said, I am not sure iff these symbols really are hidden in glibc. That
> > needs to be verified first. However, if you really want to make it impossible
> > for a user to redefine a non static symbol, you must "hide" the symbol somehow.
> 
> Well, what would you do to solve the bug for uClibc? I have tested it by 
> replacing read w/ __libc_read and that works.

Define "works". What happens if you try to use the internal name in your test program?
Does glibc allow you to use the intenal names in user programs? If yes then I
think it is OK for now. If not, you have to look at how glibc does and that
involves the attribute_hidden, INTUSE, INTDEF etc. stuff mentioned above.

 Jocke