From: Peter Zijlstra <peterz@infradead.org>
To: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
linux-kernel@vger.kernel.org
Subject: Re: New objtool warning..
Date: Thu, 17 Dec 2020 11:45:56 +0100 [thread overview]
Message-ID: <20201217104556.GT3040@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20201216200158.akf356yrw44o2rlb@treble>
On Wed, Dec 16, 2020 at 02:01:58PM -0600, Josh Poimboeuf wrote:
> So this is kind of tricky, because the unreachable() annotation usually
> means "the previous instruction is a dead end". Most of the time, the
> next instruction -- the one actually pointed to by the annotation -- is
> actually reachable from another path.
*groan*, this is why I ended up sticking a nop in
instrumentation_begin()/_end().
next prev parent reply other threads:[~2020-12-17 10:46 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-16 4:22 New objtool warning Linus Torvalds
2020-12-16 4:49 ` Josh Poimboeuf
2020-12-16 5:31 ` Linus Torvalds
2020-12-16 16:20 ` Josh Poimboeuf
2020-12-16 10:46 ` David Laight
2020-12-16 16:58 ` Josh Poimboeuf
[not found] ` <CAHk-=wjMoZesNgi1yWzY3nikyR11PUxHgov561UNom5mL1R4rA@mail.gmail.com>
[not found] ` <CAHk-=whpp_eo-5d0ZLpx=0X91J0ZNReZ_9riNf96z2dy24z=hw@mail.gmail.com>
2020-12-16 20:01 ` Josh Poimboeuf
2020-12-17 10:45 ` Peter Zijlstra [this message]
2020-12-17 16:25 ` Josh Poimboeuf
2020-12-17 17:27 ` Linus Torvalds
2020-12-17 17:45 ` Linus Torvalds
2020-12-17 18:25 ` Joe Perches
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