On Wed, Sep 06, 2017 at 04:33:02PM -0500, Josh Poimboeuf wrote:
> On Wed, Sep 06, 2017 at 12:26:13AM -0500, Miguel Bernal Marin wrote:
> > kernel/locking/rwsem.o: warning: objtool: downgrade_write()+0x22: call
> > without frame pointer save/setup
> >
> > The warning means gcc 7.2.0 placed the __d
On Wed, Sep 06, 2017 at 04:33:02PM -0500, Josh Poimboeuf wrote:
> On Wed, Sep 06, 2017 at 12:26:13AM -0500, Miguel Bernal Marin wrote:
> > kernel/locking/rwsem.o: warning: objtool: downgrade_write()+0x22: call
> > without frame pointer save/setup
> >
> > The warning means gcc 7.2.0 placed the __d
On Wed, Sep 06, 2017 at 12:26:13AM -0500, Miguel Bernal Marin wrote:
> kernel/locking/rwsem.o: warning: objtool: downgrade_write()+0x22: call
> without frame pointer save/setup
>
> The warning means gcc 7.2.0 placed the __downgrade_write() inline asm (and
> its call instruction) before the frame
kernel/locking/rwsem.o: warning: objtool: downgrade_write()+0x22: call without
frame pointer save/setup
The warning means gcc 7.2.0 placed the __downgrade_write() inline asm (and
its call instruction) before the frame pointer setup in downgrade_write(),
which breaks frame pointer convention and c
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