On 05/15/2013 09:52 PM, Paul Eggert wrote: > --- > ChangeLog | 10 ++++++++++ > lib/stdio.in.h | 19 +++++++++++++------ > 2 files changed, 23 insertions(+), 6 deletions(-) > > diff --git a/ChangeLog b/ChangeLog > index dfb2e5c..3544972 100644 > --- a/ChangeLog > +++ b/ChangeLog > @@ -1,5 +1,15 @@ > 2013-05-15 Paul Eggert <egg...@cs.ucla.edu> > > + stdio: use __REDIRECT for fwrite, fwrite_unlocked
My first worry is that __REDIRECT is non-standard; but then I realized: > # if (0 < __USE_FORTIFY_LEVEL \ > && __GLIBC__ == 2 && 4 <= __GLIBC_MINOR__ && __GLIBC_MINOR__ <= 15 \ We only get here on glibc, where system headers give us __REDIRECT, so > +# undef fwrite > +# undef fwrite_unlocked > +extern size_t __REDIRECT (rpl_fwrite, > + (const void *__restrict, size_t, size_t, > + FILE *__restrict), > + fwrite); this usage only has to work for glibc, which it does. Interesting solution. -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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