Re: [patch,arm] Add GCC runtime library exceptions to files that go into libgcc

[Georg-Johann Lay <avr at gjlay dot de>]

Am 05/10/2014 02:51 AM, schrieb Ian Lance Taylor:
> Georg-Johann Lay <avr@jlay.de> writes:
>
> > This patch adds GCC Runtime Library Exception to files that go into
> > libgcc because libgcc2.c includes tm.h and libgcc_tm.h.
> >
> > Most of these files contain much code, some used by libgcc, some
> > not. Some potential users of (lib)gcc have objections that missing RLE
> > might "infect" their target code.
> >
> > Even though I know that this is actually not the case and the FSF is
> > fine with target code linked against libgcc, it's pointless to argue
> > in that direction. At least this is my personal experience with
> > advocates.
> >
> > I am aware that there was effort for better separation of libgcc and
> > GCC, but obviously this separation has not yet been achieved.
> >
> > This this ok for trunk?
> >
> > And is there anything special about license changes w.r.t FSF that I
> > have to take into account?  CCed Ian so that someone from the GCC
> > steering committee can have a look.
>
> I think this is unnecessary but fine.

Thanks.

Yes, I know it's not needed... yet it can increase acceptance of GCC.

I opened a PR61152 for this so that it's clearer for why the Runtime Exceptions 
will be added:

http://gcc.gnu.org/PR61152

Added two files included by arm.h I missed; is it in order to apply this, too?

And is it in order to apply/backport this to the 4.9 branch? From source 
perspective the changes are trivial enough.

Johann



	PR libgcc/61152
	* config/arm/arm-opts.h (License): Add GCC Runtime Library Exception.
	* config/arm/arm-cores.def (License): Same.


Index: gcc/config/arm/arm-cores.def
===================================================================
--- gcc/config/arm/arm-cores.def        (revision 210321)
+++ gcc/config/arm/arm-cores.def        (working copy)
@@ -14,6 +14,10 @@
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    General Public License for more details.

+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
    You should have received a copy of the GNU General Public License
    along with GCC; see the file COPYING3.  If not see
    <http://www.gnu.org/licenses/>.  */
Index: gcc/config/arm/arm-opts.h
===================================================================
--- gcc/config/arm/arm-opts.h   (revision 210321)
+++ gcc/config/arm/arm-opts.h   (working copy)
@@ -13,6 +13,10 @@
    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
    License for more details.

+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
    You should have received a copy of the GNU General Public License
    along with GCC; see the file COPYING3.  If not see
    <http://www.gnu.org/licenses/>.  */