From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 58F7425B1C4; Thu, 26 Jun 2025 23:56:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750982178; cv=none; b=Bla51CPofPPeS/rAswLGdBbl0wjgB+xcz0+qIj6okjMM3rXcP3TD6TwWuJcHA/KzIMcFXq/kY2/zBW46gRlHLGz/Hj0GaeIwNlTP0fjYVM1yb3ahrAsKjPHzxy6xaI20uENxiIq0dhFj4ENqv5JOtDHx0q82h0gY5PeDLbGgpoA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750982178; c=relaxed/simple; bh=TV6ZCyL2++3U5AELA+wSqC4BJLHcopbR5tUeqpd/6yE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=tRqX31BUVQiYb+bUwzNivR/CKoxqXYvZDFwmk2TKhrV5i/2Spw2Qt8Km4Lp3wT7CqTV1OhlJif0qihyCwsL46nTrAvCwb3lEM7toRFv27gh8WJXnLRDGV6mVqZWnHfaWxjDcl3T0WIHj3TgY1lnYaaOLRr7S4ZJwCOEeJRcghQc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=gwOIcOdT; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="gwOIcOdT" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A1A36C4CEF7; Thu, 26 Jun 2025 23:56:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1750982177; bh=TV6ZCyL2++3U5AELA+wSqC4BJLHcopbR5tUeqpd/6yE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=gwOIcOdTxuFWhqIcjquWH1ddSDtXBROTjDwT0s6+NY3sc27kgVkj1tyknhrCaRmai IGh95eZKBL3LBprbDr3Ox7rr1wZH3o4hgxjP8wFD5E3QJsZSU+h/CYYAKc0NRvx6kD 4bGA3u5R7lggZcc8BvPNsJwZbtsFD9tLve8uWH6KlD2NvHveHXfVx8wdlzFXdn8Sed OT2WQQufkQTyt+GRfWmHct/K9YlfY4yQBPQbL5AaTxnv86ZMzoDZ0elBqbWFnkCirW Op6RND/Rl5ugsG6gPO0GDMxu/QuL+MBnGPoeAHB+l9h476Wj28qqUqNagnAx+vYlNn RdYheEsrT8t0w== From: Josh Poimboeuf To: x86@kernel.org Cc: linux-kernel@vger.kernel.org, Petr Mladek , Miroslav Benes , Joe Lawrence , live-patching@vger.kernel.org, Song Liu , laokz , Jiri Kosina , Marcos Paulo de Souza , Weinan Liu , Fazla Mehrab , Chen Zhongjin , Puranjay Mohan , Dylan Hatch , Masahiro Yamada Subject: [PATCH v3 09/64] modpost: Ignore unresolved section bounds symbols Date: Thu, 26 Jun 2025 16:54:56 -0700 Message-ID: <64791e0033a46ca2a6f8cf4f65d4a6de76971ffb.1750980517.git.jpoimboe@kernel.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: live-patching@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit In preparation for klp-build livepatch module creation tooling, suppress warnings for unresolved references to linker-generated __start_* and __stop_* section bounds symbols. These symbols are expected to be undefined when modpost runs, as they're created later by the linker. Cc: Masahiro Yamada Signed-off-by: Josh Poimboeuf --- scripts/mod/modpost.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index 5ca7c268294e..c2b2c8fa6d25 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -606,6 +606,11 @@ static int ignore_undef_symbol(struct elf_info *info, const char *symname) strstarts(symname, "_savevr_") || strcmp(symname, ".TOC.") == 0) return 1; + + /* ignore linker-created section bounds variables */ + if (strstarts(symname, "__start_") || strstarts(symname, "__stop_")) + return 1; + /* Do not ignore this symbol */ return 0; } -- 2.49.0