From nobody Tue Dec 16 12:38:42 2025 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 17E4D268C49; Fri, 9 May 2025 20:17:58 +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=1746821879; cv=none; b=LWI0uWNs4nKN8UxhwD+v0TvYCZRiyNLOLUKuM+ebWd8EDJkOvcLinW3iQ72SFz/8h/u2LqwPKECCxX3ADJJ+hhYyuOzVZJbnchTVORN1fwxh8f8uGdqOczpV4jdAL0dWBAS8XC9lFrA3jpYN6C0eRNjLt4P95FTECcUMm4C1Jmg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746821879; c=relaxed/simple; bh=iZPpW5B7vyUX5hbIoVsgCqQOfefHFHuE1LOhfhu9YJA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=X8++w96U9lR7tipf738bfWTFPDjB8PPXHBGujrG7qPAXUyMO2oJSLnB793RptkNgkK6rv69Yytcq18NXkmftsqJRoaqIzFxViUB5tDWz5WMB3REBhb3bBc84ijq7fYNZmG6JTgjnVm9iquk/4WsUhrql65O1FYMtpmb7WfXm5ig= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=KEBTdoAC; 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="KEBTdoAC" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1425AC4CEEE; Fri, 9 May 2025 20:17:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1746821878; bh=iZPpW5B7vyUX5hbIoVsgCqQOfefHFHuE1LOhfhu9YJA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KEBTdoACkOPyw6/6J7N1MGQEj5amg39fjHY3msAcm8rc613gunwTa+LTvCWN4g2Oz NARMK2sY+ijTaTM8LLGXiePQCpBv1FRR2sdxjwaoYxndVaTKtRyJUu57NZLo4XIG9K 3w4EFuNLWvt87o9nNeCaap5TSJ1wnjxmwPk1Yqcgzxlscn6FCiBRF7EJNnu0qv2wKK CTFMDnehrWHNiEulTaHLG0HgZYs9wu2AvelEnq88vRYExzc+Cl2OGBwKuhvJTNHZck Y+f3x8iFZz1mJluB9VRkw0UXbddYyBPfkDdBYnBIaBMMaA+R1fgkj+r3OrzTB7GYem RW2o+QRxi/rsA== 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 Subject: [PATCH v2 21/62] objtool: Check for missing annotation entries in read_annotate() Date: Fri, 9 May 2025 13:16:45 -0700 Message-ID: X-Mailer: git-send-email 2.49.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add a sanity check to make sure none of the relocations for the .discard.annotate_insn section have gone missing. Signed-off-by: Josh Poimboeuf --- tools/objtool/check.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/tools/objtool/check.c b/tools/objtool/check.c index 53793b9ea974..0cdc2fc85439 100644 --- a/tools/objtool/check.c +++ b/tools/objtool/check.c @@ -2314,6 +2314,11 @@ static int read_annotate(struct objtool_file *file, sec->sh.sh_entsize =3D 8; } =20 + if (sec_num_entries(sec) !=3D sec_num_entries(sec->rsec)) { + ERROR("bad .discard.annotate_insn section: missing relocs"); + return -1; + } + for_each_reloc(sec->rsec, reloc) { type =3D *(u32 *)(sec->data->d_buf + (reloc_idx(reloc) * sec->sh.sh_ents= ize) + 4); =20 --=20 2.49.0