This is the mail archive of the
binutils@sourceware.org
mailing list for the binutils project.
PING^1 [PATCH] LTO: Properly handle wrapper symbols in IR
On Tue, Apr 2, 2019 at 7:58 PM H.J. Lu <hjl.tools@gmail.com> wrote:
>
> On Tue, Apr 2, 2019 at 4:12 PM H.J. Lu <hjl.tools@gmail.com> wrote:
> >
> > On Tue, Apr 2, 2019 at 3:12 PM H.J. Lu <hjl.tools@gmail.com> wrote:
> > >
> > > Change resolution from PREVAILING_DEF_IRONLY to LDPR_PREVAILING_DEF
> > > for wrapper symbol.
> > >
> > > PR ld/24406
> > > * ld.texi: Remove LTO warning from --wrap.
> > > * plugin.c (get_symbols): Change resolution to LDPR_PREVAILING_DEF
> > > for wrapper symbol.
> > > * testsuite/ld-plugin/lto.exp: Run ld/24406 test.
> > > * testsuite/ld-plugin/pr24406.c: New file.
> >
> > This patch is incomplete. I am working on it.
>
> When a wrapper symbol, __wrap_FOO, is defined in IR, its resolution
> should be LDPR_PREVAILING_DEF, not PREVAILING_DEF_IRONLY, since LTO
> doesn't know that __wrap_FOO provides definition of FOO. And resolution
> of FOO should be LDPR_RESOLVED_IR since it is resolved by __wrap_FOO in
> IR.
PING:
https://sourceware.org/ml/binutils/2019-04/msg00018.html
--
H.J.