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a=rsa-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_rsa; t=1742220560; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=7mSIclVZV0URw7y1Fbp+WwCW0DPdbm1tY2NRXrH6VmQ=; b=wq6rFTyYWrLItdXNqXhSUJUKINlPT4P5Zsi6bvX205cQEmwX/FHG5Xl8R+ithvDkHiS5/z 6incE/6XysMxd5k10PSyzoHwOH2G16b0pjWbwsvCaLxiO7EwXLfrexClv/+Ux0N2DZ51kW hQE+PQafs/y1XiQqGOPncP7rZ9BSz2E= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_ed25519; t=1742220560; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=7mSIclVZV0URw7y1Fbp+WwCW0DPdbm1tY2NRXrH6VmQ=; b=O7rKO6a3om8oq3LGw18OcdwIn0twmKz8rJCI2gE5IGi9t/u4pgPDqKJ8LZsV+OU1xEo5vA IfkRFAr112e0KqAg== Date: Mon, 17 Mar 2025 15:09:21 +0100 (CET) From: Miroslav Benes To: Josh Poimboeuf cc: x86@kernel.org, linux-kernel@vger.kernel.org, Peter Zijlstra , Brendan Jackman , Nathan Chancellor Subject: Re: [PATCH 12/13] objtool: Create backup on error and print args In-Reply-To: <7571e30636359b3e173ce6e122419452bb31882f.1741975349.git.jpoimboe@kernel.org> Message-ID: References: <7571e30636359b3e173ce6e122419452bb31882f.1741975349.git.jpoimboe@kernel.org> User-Agent: Alpine 2.21 (LSU 202 2017-01-01) 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 X-Spam-Score: -4.30 X-Spamd-Result: default: False [-4.30 / 50.00]; BAYES_HAM(-3.00)[99.99%]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.20)[-0.998]; MIME_GOOD(-0.10)[text/plain]; MIME_TRACE(0.00)[0:+]; RCVD_COUNT_ZERO(0.00)[0]; ARC_NA(0.00)[]; MID_RHS_MATCH_FROMTLD(0.00)[]; FROM_HAS_DN(0.00)[]; DKIM_SIGNED(0.00)[suse.cz:s=susede2_rsa,suse.cz:s=susede2_ed25519]; FROM_EQ_ENVFROM(0.00)[]; TO_DN_SOME(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; FUZZY_BLOCKED(0.00)[rspamd.com]; RCPT_COUNT_FIVE(0.00)[6] X-Spam-Flag: NO X-Spam-Level: On Fri, 14 Mar 2025, Josh Poimboeuf wrote: > Recreating objtool errors can be a manual process. Kbuild removes the > object, so it has to be compiled or linked again before running objtool. > Then the objtool args need to be reversed engineered. > > Make that all easier by automatically making a backup of the object file > on error, and print a modified version of the args which can be used to > recreate. > > Signed-off-by: Josh Poimboeuf Reviewed-by: Miroslav Benes M