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From: Josh Poimboeuf <jpoimboe@redhat.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: alexandre.chartre@oracle.com, linux-kernel@vger.kernel.org,
	jthierry@redhat.com, tglx@linutronix.de, x86@kernel.org,
	mbenes@suse.cz
Subject: Re: [PATCH v2 00/14] objtool vs retpoline
Date: Tue, 28 Apr 2020 15:17:58 -0500	[thread overview]
Message-ID: <20200428201758.zwi5pfj7bpuvjwnw@treble> (raw)
In-Reply-To: <20200428191101.886208539@infradead.org>

On Tue, Apr 28, 2020 at 09:11:01PM +0200, Peter Zijlstra wrote:
> Hi,
> 
> Based on Alexandre's patches, here's a few that go on top of tip/objtool/core.
> 
> With these patches on objtool can completely understand retpolines and RSB
> stuffing, which means it can emit valid ORC unwind information for them, which
> in turn means we can now unwind through a retpoline.
> 
> New since last time:
> 
>  - 1-3, alternatives vs ORC unwind
>  - 7-9: implement some suggestions from Julien
>  - addressed feedback

For patches 2-14:

  Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>

Instead of patch 1, maybe you could grab Julien's patch to drop the
useless warning; and also grab the alt_group numbering and the
"orig->alt_group = true" bits from Alexandre's patch.

-- 
Josh


  parent reply	other threads:[~2020-04-28 20:18 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-28 19:11 [PATCH v2 00/14] objtool vs retpoline Peter Zijlstra
2020-04-28 19:11 ` [PATCH v2 01/14] objtool: Allow branches within the same alternative Peter Zijlstra
2020-04-28 19:53   ` Josh Poimboeuf
2020-04-28 19:11 ` [PATCH v2 02/14] objtool: Fix ORC vs alternatives Peter Zijlstra
2020-04-28 19:55   ` Josh Poimboeuf
2020-04-29 14:33   ` Miroslav Benes
2020-04-29 15:51     ` Peter Zijlstra
2020-04-29 16:41       ` Miroslav Benes
2020-05-01 18:22   ` [tip: objtool/core] " tip-bot2 for Peter Zijlstra
2020-04-28 19:11 ` [PATCH v2 03/14] x86,smap: Fix smap_{save,restore}() alternatives Peter Zijlstra
2020-04-29  0:54   ` Brian Gerst
2020-04-29  8:30     ` Peter Zijlstra
2020-04-29 10:18       ` Peter Zijlstra
2020-04-29 12:12         ` Brian Gerst
2020-05-01 18:22         ` [tip: objtool/core] " tip-bot2 for Peter Zijlstra
2020-04-28 19:11 ` [PATCH v2 04/14] objtool: is_fentry_call() crashes if call has no destination Peter Zijlstra
2020-04-28 19:11 ` [PATCH v2 05/14] objtool: UNWIND_HINT_RET_OFFSET should not check registers Peter Zijlstra
2020-04-28 19:11 ` [PATCH v2 06/14] objtool: Rework allocating stack_ops on decode Peter Zijlstra
2020-05-01 18:22   ` [tip: objtool/core] " tip-bot2 for Peter Zijlstra
2020-04-28 19:11 ` [PATCH v2 07/14] objtool: Make handle_insn_ops() unconditional Peter Zijlstra
2020-05-01 18:22   ` [tip: objtool/core] " tip-bot2 for Peter Zijlstra
2020-05-07 12:38     ` Peter Zijlstra
2020-04-28 19:11 ` [PATCH v2 08/14] objtool: Remove INSN_STACK Peter Zijlstra
2020-05-01 18:22   ` [tip: objtool/core] " tip-bot2 for Peter Zijlstra
2020-04-28 19:11 ` [PATCH v2 09/14] objtool: Move the IRET hack into the arch decoder Peter Zijlstra
2020-05-01 18:22   ` [tip: objtool/core] " tip-bot2 for Miroslav Benes
2020-04-28 19:11 ` [PATCH v2 10/14] objtool: Add support for intra-function calls Peter Zijlstra
2020-04-28 19:11 ` [PATCH v2 11/14] x86/speculation: Change FILL_RETURN_BUFFER to work with objtool Peter Zijlstra
2020-05-01 18:22   ` [tip: objtool/core] " tip-bot2 for Peter Zijlstra
2020-04-28 19:11 ` [PATCH v2 12/14] x86: Simplify retpoline declaration Peter Zijlstra
2020-05-01 18:22   ` [tip: objtool/core] " tip-bot2 for Peter Zijlstra
2020-04-28 19:11 ` [PATCH v2 13/14] x86: Change {JMP,CALL}_NOSPEC argument Peter Zijlstra
2020-05-01 18:22   ` [tip: objtool/core] " tip-bot2 for Peter Zijlstra
2020-04-28 19:11 ` [PATCH v2 14/14] x86/retpoline: Fix retpoline unwind Peter Zijlstra
2020-05-01 18:22   ` [tip: objtool/core] " tip-bot2 for Peter Zijlstra
2020-04-28 20:17 ` Josh Poimboeuf [this message]
2020-04-29 10:19 ` [PATCH v2.1 01-A/14] objtool: Remove check preventing branches within alternative Peter Zijlstra
2020-04-29 10:21 ` [PATCH v2.1 01-B/14] objtool: Uniquely identify alternative instruction groups Peter Zijlstra
2020-04-29 16:46 ` [PATCH v2 00/14] objtool vs retpoline Miroslav Benes

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