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 9B83DB672; Wed, 18 Jun 2025 13:49:35 +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=1750254577; cv=none; b=j1aPO4HAzfJsfJHL/s2l/jtbTXtFlrIXW1Q71WXl6kXzyNvhZnd1hES9xJqTai7ogBtwWokTUZGKe6FF6265H4i+45n3w0rIQ3VzuVCU0Qwx1IuH/MBVOmfWDN8uCjEhfY1liGO+qHQPd4PEtPgMHOChXnHBrsSZLyoWidHUJEw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750254577; c=relaxed/simple; bh=OwFE1pD1KZbh0gaqp1EA23bjStIvc59+I767Mn156eM=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=g8R+4kiz6l/Qusp7B1gfGinT3dC46fU4W00Q/W7JFDp6V/ebqCPBml9s1+ZvVCLuBv89gxzRaXi1/xigu5iKWrSz5xvyGtlPUm8FhLlLFZK6ddOyn4fOEdIpGUrMZfd0uSK2Hr+eIQ3GnLSIb8l0r2lhHDetM7czUkIW7ZyCL7M= 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=IqNC1wCl; 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="IqNC1wCl" 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=C6Bom0krT6ocOdMCSUC5RnAJ/ezmG5rabjTXzGvpnBQ=; b=IqNC1wCliXmTDts9xATzO0fset BgSlRE3yZ+44bEg70/ZcgV8P3N0OFYCg22bUDb5EigjckCxmXbHVSdVvmlHv5RarkHsbVTlwna32p Z3ukuK/U5P/vLv5R5vBUiY1/flyLS2NZGoKuoLrvBeIE5VEBNyftr0Og3GH1zhdfEZcoA4UpjEanF YqXLVU8AiqtMWSScg9EChuL3W+NqyxLufBPce2D2npDM+rwljTKXlaLADnb/hbZjTzhrpMEsAOyTV mzci7yYn2zw3EcIIgiNTjlH53mvBXyQ7rC2lHaEUhjv73wrHN63GR7R+FWBivhwWQW8HasXPcwwMq +URlofxA==; 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 1uRtAP-00000003ieC-1HWf; Wed, 18 Jun 2025 13:49:29 +0000 Received: by noisy.programming.kicks-ass.net (Postfix, from userid 1000) id E5C37307FB7; Wed, 18 Jun 2025 15:49:28 +0200 (CEST) Date: Wed, 18 Jun 2025 15:49:28 +0200 From: Peter Zijlstra To: Steven Rostedt Cc: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, bpf@vger.kernel.org, x86@kernel.org, Masami Hiramatsu , Mathieu Desnoyers , Josh Poimboeuf , Ingo Molnar , Jiri Olsa , Namhyung Kim , Thomas Gleixner , Andrii Nakryiko , Indu Bhagat , "Jose E. Marchesi" , Beau Belgrave , Jens Remus , Linus Torvalds , Andrew Morton Subject: Re: [PATCH v10 01/14] unwind_user: Add user space unwinding API Message-ID: <20250618134928.GL1613376@noisy.programming.kicks-ass.net> References: <20250611005421.144238328@goodmis.org> <20250611010427.923519889@goodmis.org> Precedence: bulk X-Mailing-List: linux-trace-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: <20250611010427.923519889@goodmis.org> On Tue, Jun 10, 2025 at 08:54:22PM -0400, Steven Rostedt wrote: > + state->ip = instruction_pointer(regs); > + state->sp = user_stack_pointer(regs); > + state->fp = frame_pointer(regs); That user_ thing sticks out like a sore thumb. I realize this is pre-existing naming, but urgh..