From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2D9BD2DA775 for ; Wed, 24 Sep 2025 10:44:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.50.34 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758710667; cv=none; b=JMvN0hNTDN8azZIc9LqXEFYZwG2Tz8IJOTjxQjig/nEAe4iDEZ8pq6jhkYdILdGUTtltgTdXiNrpsHX8yU05b+rYoqBrp6Lliqz4dcqZVZ/FXxWdw7t3IeS38HbuVn8TleLQd1YVeHsQ6liIszE0Uu+MZ7f2hksQk6rGOY5O6yc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758710667; c=relaxed/simple; bh=wjxtcLqkggqlpZtAEiP32IXoGz9ksumtGL+ib7V03Oc=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=TsHdpwwxftJhHFpsUwW6Rd1sqCfO8oHmnQmk2y9PmzBIhdrHGa1cPWmAEHn2g8XL881JZq4/L0nMNQxGnmhaf0pUp5icw/2LMWSp7F0n9wYQ9Uc46hRHO8XyMGu2+EwNvQO0sIYFv9Xzj4ViCg6c5YncRFoOfA+COQIWfo5PvNY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=ZdVUEBnV; arc=none smtp.client-ip=90.155.50.34 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="ZdVUEBnV" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=T6gD5Zhet6ps9VzKfUks1YYByvPoKk+GPTXPQngFIMo=; b=ZdVUEBnV8gnO1kGO9SLDGJm1U9 3zYt6NWSyWFsZp9nlrqyd16qpr2gCWAXBiaVv51BXKp5cXcyvmuYF+o2dTiWKk55NPmDZHod+s4qc SEugE0AhmE15HBp0LhRRJOGdF4tlEOiLu0/VaAcwqKFqBUPjcxX2nXiHpXhy17Uk29+ZXUPUV7Cys ZocHj7S4Yqs1RYVHolRNjW88msysjeWTl8SKXgBvhO3yp8kIRT3kBXdS7sVZI+wyz1FWguztkgETw mSF2LxFkCKFp8Ayhdrt8LWLKdhwJ2e6LsyoL6mbbZUtLexTWhD/clV98nx75y2QpqJkYnA26CasO+ ONATtAFQ==; Received: from 77-249-17-252.cable.dynamic.v4.ziggo.nl ([77.249.17.252] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.98.2 #2 (Red Hat Linux)) id 1v1MQZ-0000000DJIF-2Tc5; Wed, 24 Sep 2025 10:08:47 +0000 Received: by noisy.programming.kicks-ass.net (Postfix, from userid 1000) id 1B6EC30033D; Wed, 24 Sep 2025 12:08:47 +0200 (CEST) Date: Wed, 24 Sep 2025 12:08:47 +0200 From: Peter Zijlstra To: Alexandre Chartre Cc: linux-kernel@vger.kernel.org, mingo@kernel.org, jpoimboe@kernel.org Subject: Re: [RFC PATCH v2 00/17] objtool: Function validation tracing Message-ID: <20250924100847.GY4068168@noisy.programming.kicks-ass.net> References: <20250619145659.1377970-1-alexandre.chartre@oracle.com> <20250924073649.GT4067720@noisy.programming.kicks-ass.net> <20250924074206.GW4068168@noisy.programming.kicks-ass.net> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250924074206.GW4068168@noisy.programming.kicks-ass.net> On Wed, Sep 24, 2025 at 09:42:06AM +0200, Peter Zijlstra wrote: > > > d051: perf_get_x86_pmu_capability+0x51 | xchg %ax,%ax That libopcode is 'funny', isn't that typically spelled "nop" ?