From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 AA34D368D4D; Mon, 3 Aug 2026 03:24:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785727489; cv=none; b=BsV2vL0jIKSC+Z5dpTOYYAhMb6hxXqZxsa3xCKfXER2rHjxjbzamvhpX8Ql2+ehP+88En0wXuBi00EGZgX9UIu2Qty0ZVf4g/05fSMA8BQPyKHOQq0M6p3w9L6kJw2UUWOcVlgYAcH8AgO1PiyrJTybmylWuhAZ7bU4B9W5okRU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785727489; c=relaxed/simple; bh=j48+m9Y5h1Lb70QjJlbMMwENgX14LqXfWbeAUxW8Jxo=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=hzSQPteKwSVWerNJOAvvNRoEEq7JchKTPto+uavqp8e9kwjXF5rOxNJ8/Ho/5m/BCXIZmLaXoMj2ugtVn995hPUXpMw+HkqTdrt4roG23tniEN86NA7a81qHW0o6Kzmk0LK3xX7Ayt05NqBu3u3vFxhhGSxIE/vRmosiGB34mGA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=D6O7+QtP; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="D6O7+QtP" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 128CF1F000E9; Mon, 3 Aug 2026 03:24:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1785727488; bh=JR91vB8if1gD9eqhICAVNUHycvHpRC2TsM3UmLccdpI=; h=From:To:Cc:Subject:Date; b=D6O7+QtP1VGjaznUvVnJS1xAsxxVUk5Zn3mUrkHvoGo7cb7o1RPNyo+ks/YgcLSjw pk6m1FS5f2I8g02NGJMyMsM3JAe0NyVuA7EEsV2Q0UNDChoxYj1HPraBAEawbxNE0k 7i+i8BvCN3wyUekWQCP48jfTJz1eX9Azi4eMW9OfNFGe/GZzwnCd5p6xgOYdlwpw6U aB3qXrePItnQ6uKp0nTbwKOqvqFSF7Q5NZ9LMZtGroyvVqGI6xlgkEy4ec4W84RzvA fQLQueZOmaVcN918C5YdgX0ZrsWA1CHlgsdHMi/3NOew6gn+hUYthU3631DZnRPM45 +VAiULalfgFqw== From: Josh Poimboeuf To: x86@kernel.org Cc: linux-kernel@vger.kernel.org, live-patching@vger.kernel.org, Peter Zijlstra , Joe Lawrence , Miroslav Benes , Petr Mladek , Song Liu , Luis Chamberlain , Petr Pavlu , Daniel Gomez , Sami Tolvanen , linux-modules@vger.kernel.org Subject: [PATCH 00/14] objtool/klp: sympos/module/alternative/etc fixes Date: Sun, 2 Aug 2026 20:24:22 -0700 Message-ID: X-Mailer: git-send-email 2.54.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit This consolidates fixes for the klp-build issues reported by Joe over the last several weeks, plus some more things I found while testing/reviewing. Fun stuff like symbol resolution, module dependencies, alternatives. MODULE MAINTAINERS: see patches 7 and 8, you can probably ignore the rest. Joe Lawrence (2): objtool/klp: Normalize Module.symvers paths to module names objtool/klp: Allow new references to module exports Josh Poimboeuf (12): objtool/klp: Fix module name normalization for paths with dots objtool/klp: Fix false module dependencies caused by dead relocs objtool/klp: Skip hidden directories when finding objects objtool/klp: Add .klp.symid for sympos disambiguation objtool/klp: Fix symbol resolution for duplicate data symbols module: Add module_kallsyms_on_each_core_symbol() objtool/klp,livepatch: Resolve module symbols against core kallsyms objtool/klp: Fix size of empty special section entries objtool/klp: Ignore replacement offset of empty x86 alternatives objtool/klp: Explicitly disallow patching or referencing init code/data objtool/klp: Fix cross-module klp relocation section naming objtool/klp: Don't match local symbols against exports include/asm-generic/vmlinux.lds.h | 10 +- include/linux/module.h | 11 + kernel/livepatch/core.c | 2 +- kernel/module/kallsyms.c | 46 +++ scripts/Makefile.vmlinux_o | 3 + scripts/livepatch/klp-build | 17 +- scripts/mod/modpost.c | 1 + tools/objtool/Build | 4 +- tools/objtool/arch/x86/special.c | 27 ++ tools/objtool/builtin-check.c | 7 + tools/objtool/check.c | 7 + tools/objtool/elf.c | 13 + tools/objtool/include/objtool/builtin.h | 1 + tools/objtool/include/objtool/klp.h | 32 +- tools/objtool/include/objtool/special.h | 7 + tools/objtool/klp-diff.c | 192 ++++++----- tools/objtool/klp-post-link.c | 53 +-- tools/objtool/klp-symid.c | 117 +++++++ tools/objtool/klp-sympos.c | 441 ++++++++++++++++++++++++ 19 files changed, 877 insertions(+), 114 deletions(-) create mode 100644 tools/objtool/klp-symid.c create mode 100644 tools/objtool/klp-sympos.c -- 2.54.0