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 BAFF22FB0A7; Wed, 17 Sep 2025 16:04:22 +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=1758125062; cv=none; b=tZiP6vUYAuN5Tmh0gYYb3JWAKeaykvtX32YE8ym+yve644kaozdWDpB6d8tsbu09R9tmaQ3o8m7qihb6CGQonGIxBJlI6osaYjIt0RxdZjgftARmYq/RQBTItVMHv+5PFmeh97Dh56O2TbhNCFL2D5U3FsOZ3CBwAOSBpQnkOwY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758125062; c=relaxed/simple; bh=dxrTl9A4NvZjNOxon5FJcu6lJrpl3HE5uxGv+3v/KTw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=X3bl/VQb58Z6gkJhfXIb/84X+eWe2NPVwY2d2OSNX92B46Joi2CX6zvRh0er+rEhqgEKUZzDmXjDpQFXy4q9VT3niznaK0XHHprV03W146+HDVXL66rFCBtxiJHhI8HUhO/h7oGHwhqajRR/chqLcCwSIGryuFIlaVZdLLDd1Tk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=BoIkIqtl; 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="BoIkIqtl" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0863FC4CEF9; Wed, 17 Sep 2025 16:04:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1758125062; bh=dxrTl9A4NvZjNOxon5FJcu6lJrpl3HE5uxGv+3v/KTw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=BoIkIqtl04IC+gwVZ9IE2a+F7g1jzIOfFifYuSOfaKg/inCdOqJfhi5KdpfysNj4X w1OowhorVAdAcvvKXGRxj+7cDqU4qY1d88pQT8T88B9HMlvrfUY4qCARgacJ5FD4sW +NE/p2SUvZbTMA7ZJ+AncMguycxW9kRvTM8Ny0LjZ63Cb/pe8w2KUSKp5o9wqfb3+4 nxAqwx7xLi9OHG+/1K9Ofszqn7ZTqNVpvsDGTc3QXChag585Vflxripa37sFa3wmqt 5BGxK13UYUofi8LECjj17r0Cojrn0JR8MNokAZIqsg3YBCE7jyoOO4HVue0WZmzuzY DhQ8ITMnxTUSw== 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 , Peter Zijlstra , Masahiro Yamada Subject: [PATCH v4 09/63] modpost: Ignore unresolved section bounds symbols Date: Wed, 17 Sep 2025 09:03:17 -0700 Message-ID: <9610e9e5d3e0747b151b9ea2399a3ebf84b2da46.1758067942.git.jpoimboe@kernel.org> X-Mailer: git-send-email 2.50.0 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: 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 5ca7c268294eb..c2b2c8fa6d258 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; } -- 2.50.0