From: Josh Poimboeuf <jpoimboe@redhat.com>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Ingo Molnar <mingo@kernel.org>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/2] objtool: a couple of minor fixes
Date: Wed, 26 Oct 2016 07:43:41 -0500 [thread overview]
Message-ID: <20161026124341.2snbgaa52n5fyrn3@treble> (raw)
In-Reply-To: <20161026123739.6ih5hkgs3stdumkn@treble>
On Wed, Oct 26, 2016 at 07:37:39AM -0500, Josh Poimboeuf wrote:
> On Wed, Oct 26, 2016 at 09:58:29AM +0200, Arnd Bergmann wrote:
> > On Thursday, October 13, 2016 4:22:51 PM CEST Josh Poimboeuf wrote:
> > > Fix a couple of issues:
> > >
> > > - fix a false positive warning related to switch statement jump tables
> > > - get rid of useless "unreachable instruction" warnings for gcov kernels
> > >
> > > Josh Poimboeuf (2):
> > > objtool: improve rare switch jump table pattern detection
> > > objtool: skip all "unreachable instruction" warnings for gcov kernels
> > >
> > > tools/objtool/builtin-check.c | 68 ++++++++++++++++++++++---------------------
> > > 1 file changed, 35 insertions(+), 33 deletions(-)
> >
> > I got another warning today with linux-next, but have not looked into it:
> >
> > drivers/infiniband/sw/rxe/rxe_comp.o: warning: objtool: rxe_completer()+0x315: sibling call from callable instruction with changed frame pointer
> >
> > .config and object file attached.
>
> I think this is the same as one of the warnings you reported before (for
> which I opened the gcc bug):
>
> https://lkml.kernel.org/r/1855683.1QnG4Fe4Hq@wuerfel
Er, scratch that. Actually this is similar to one I supposedly fixed
with commit 3732710ff6f2ce2b1b7f044937a422b717d4f953. And the other
warning looks similar. Will take a look.
--
Josh
next prev parent reply other threads:[~2016-10-26 12:43 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-13 21:22 [PATCH 0/2] objtool: a couple of minor fixes Josh Poimboeuf
2016-10-13 21:22 ` [PATCH 1/2] objtool: improve rare switch jump table pattern detection Josh Poimboeuf
2016-10-16 11:18 ` [tip:core/urgent] objtool: Improve " tip-bot for Josh Poimboeuf
2016-10-13 21:22 ` [PATCH 2/2] objtool: skip all "unreachable instruction" warnings for gcov kernels Josh Poimboeuf
2016-10-16 11:18 ` [tip:core/urgent] objtool: Skip " tip-bot for Josh Poimboeuf
2016-10-26 7:58 ` [PATCH 0/2] objtool: a couple of minor fixes Arnd Bergmann
2016-10-26 9:16 ` Arnd Bergmann
2016-10-26 12:37 ` Josh Poimboeuf
2016-10-26 12:43 ` Josh Poimboeuf [this message]
2016-10-26 13:18 ` Josh Poimboeuf
2016-10-26 15:34 ` [PATCH] objtool: fix rare switch jump table pattern detection Josh Poimboeuf
2016-10-26 16:03 ` Arnd Bergmann
2016-10-26 16:45 ` Josh Poimboeuf
2016-10-27 7:37 ` [tip:core/urgent] objtool: Fix " tip-bot for Josh Poimboeuf
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