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[arm] Add GCC runtime library exceptions to files that go into libgcc

Message ID 5370A1FF.6040107@gjlay.de
State New
Headers show

Commit Message

Georg-Johann Lay May 12, 2014, 10:27 a.m. UTC 
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.
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Patch

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/>.  */