On Mon, Nov 22, 2021 at 4:29 PM Jeff Law <jeffreya...@gmail.com> wrote: > > > > On 11/13/2021 9:33 AM, H.J. Lu via Gcc-patches wrote: > > Sync with binutils for building binutils with LTO: > > > > From 50ad1254d5030d0804cbf89c758359ae202e8d55 Mon Sep 17 00:00:00 2001 > > From: "H.J. Lu" <hjl.to...@gmail.com> > > Date: Sat, 9 Jan 2021 06:43:11 -0800 > > Subject: [PATCH] GCC: Pass --plugin to AR and RANLIB > > > > Detect GCC LTO plugin. Pass --plugin to AR and RANLIB to support LTO > > build. > > > > * Makefile.tpl (AR): Add @AR_PLUGIN_OPTION@ > > (RANLIB): Add @RANLIB_PLUGIN_OPTION@. > > * configure.ac: Include config/gcc-plugin.m4. > > AC_SUBST AR_PLUGIN_OPTION and RANLIB_PLUGIN_OPTION. > > * libtool.m4 (_LT_CMD_OLD_ARCHIVE): Pass --plugin to AR and > > RANLIB if possible. > > * Makefile.in: Regenerated. > > * configure: Likewise. > > > > config/ > > > > * gcc-plugin.m4 (GCC_PLUGIN_OPTION): New. > > > > libiberty/ > > > > * Makefile.in (AR): Add @AR_PLUGIN_OPTION@ > > (RANLIB): Add @RANLIB_PLUGIN_OPTION@. > > (configure_deps): Depend on ../config/gcc-plugin.m4. > > * configure.ac: AC_SUBST AR_PLUGIN_OPTION and > > RANLIB_PLUGIN_OPTION. > > * aclocal.m4: Regenerated. > > * configure: Likewise. > > > > zlib/ > > > > * configure: Regenerated. > I thought the plugins were automatically loaded if they're in the right > place in the filesystem. Wouldn't that make this patch unnecessary? Am > I missing something? >
It only works for system GCC and binutils. It doesn't work for non-system GCC nor binutils since either GCC plugin isn't installed in the binutils plugin search patch. -- H.J.