From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.loongson.cn (mail.loongson.cn [114.242.206.163]) by smtp.subspace.kernel.org (Postfix) with ESMTP id B02F844606A for ; Thu, 20 Aug 2026 12:50:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=114.242.206.163 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787230224; cv=none; b=HIK352x1me1Rgd076yjH0sivUp3ajyF2AlMnwEl1OFdS3SmcRt4oBatkGwRTYY+vYbHZ7lKVxNh3bHyJopDxQ2fXdowfKKoHeJ1tTzgtxGhZ5VIOmR53Xfa/KyFQs5ENw8Fs6C7fKy4yTXKGvg/oRR8UM9r+k5B7OnD9LK49mjg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787230224; c=relaxed/simple; bh=t/wqrQG7mh/bLDGlXi3QvBm9+4nZZM3xHgnq1Ct3iO0=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=J0pVMASBjd0uPv/7JTRxuhQRLnZ2xedsI0q97rdwLWYyBP7pv0ACerCAeSbwAUUKeSa+3dgJ94DMDxs29ChHatpaZmo0ZJYS8x0YxCftT/dXnVy7mDUQCyQjoM3mRxSdFjquVau4Y3BqllEu0aYyvOuZVKS8PVlpAQWZRXA7ojg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=loongson.cn; spf=pass smtp.mailfrom=loongson.cn; arc=none smtp.client-ip=114.242.206.163 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=loongson.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=loongson.cn Received: from loongson.cn (unknown [123.138.236.242]) by gateway (Coremail) with SMTP id _____8DxTtMF+IZqYB0DAA--.9136S3; Thu, 20 Aug 2026 20:50:13 +0800 (CST) Received: from linux.localdomain (unknown [123.138.236.242]) by front1 (Coremail) with SMTP id qMiowJAx2c0A+IZqX_QLAA--.6716S2; Thu, 20 Aug 2026 20:50:08 +0800 (CST) From: Tiezhu Yang To: Petr Pavlu Cc: linux-modules@vger.kernel.org, loongarch@lists.linux.dev, Josh Poimboeuf , Nathan Chancellor , Namhyung Kim Subject: [PATCH v4 0/3] Ignore local labels and mapping symbols during module load Date: Thu, 20 Aug 2026 20:50:04 +0800 Message-ID: <20260820125007.22943-1-yangtiezhu@loongson.cn> X-Mailer: git-send-email 2.42.0 Precedence: bulk X-Mailing-List: linux-modules@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID:qMiowJAx2c0A+IZqX_QLAA--.6716S2 X-CM-SenderInfo: p1dqw3xlh2x3gn0dqz5rrqw2lrqou0/ X-Coremail-Antispam: 1Uk129KBj93XoW7Cr1DKFWDuFWrJryDGw48uFX_yoW8Xw13pF 43CF43Xr4UZr97Can7Gw4j9Fy5u3ykXr4FgF13Gw1xAF1qq3W8Zr92kr1F934UAryUKF40 vr17A3yqga48AwbCm3ZEXasCq-sJn29KB7ZKAUJUUUUr529EdanIXcx71UUUUU7KY7ZEXa sCq-sGcSsGvfJ3Ic02F40EFcxC0VAKzVAqx4xG6I80ebIjqfuFe4nvWSU5nxnvy29KBjDU 0xBIdaVrnRJUUUBIb4IE77IF4wAFF20E14v26r1j6r4UM7CY07I20VC2zVCF04k26cxKx2 IYs7xG6rWj6s0DM7CIcVAFz4kK6r1Y6r17M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48v e4kI8wA2z4x0Y4vE2Ix0cI8IcVAFwI0_Gr0_Xr1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI 0_Gr0_Cr1l84ACjcxK6I8E87Iv67AKxVW8Jr0_Cr1UM28EF7xvwVC2z280aVCY1x0267AK xVW8Jr0_Cr1UM2kKe7AKxVWUXVWUAwAS0I0E0xvYzxvE52x082IY62kv0487Mc804VCY07 AIYIkI8VC2zVCFFI0UMc02F40EFcxC0VAKzVAqx4xG6I80ewAv7VC0I7IYx2IY67AKxVWU tVWrXwAv7VC2z280aVAFwI0_Gr0_Cr1lOx8S6xCaFVCjc4AY6r1j6r4UM4x0Y48IcxkI7V AKI48JMxkF7I0En4kS14v26r126r1DMxAIw28IcxkI7VAKI48JMxC20s026xCaFVCjc4AY 6r1j6r4UMxCIbckI1I0E14v26r1Y6r17MI8I3I0E5I8CrVAFwI0_Jr0_Jr4lx2IqxVCjr7 xvwVAFwI0_JrI_JrWlx4CE17CEb7AF67AKxVWUAVWUtwCIc40Y0x0EwIxGrwCI42IY6xII jxv20xvE14v26r4j6ryUMIIF0xvE2Ix0cI8IcVCY1x0267AKxVW8JVWxJwCI42IY6xAIw2 0EY4v20xvaj40_Jr0_JF4lIxAIcVC2z280aVAFwI0_Gr0_Cr1lIxAIcVC2z280aVCY1x02 67AKxVW8JVW8JrUvcSsGvfC2KfnxnUUI43ZEXa7IU0epB3UUUUU== This series prevents compiler generated local labels and mapping symbols from leaking into /proc/kallsyms for loaded modules. This ensures tracing tools like bpftrace can resolve accurate kernel stacks on architectures like LoongArch. Based on the latest modules-next tree: https://git.kernel.org/pub/scm/linux/kernel/git/modules/linux.git/log/?h=modules-next There are many discussions in the previous version, here is the link: https://lore.kernel.org/loongarch/20260812032807.15034-1-yangtiezhu@loongson.cn/ v4: (1) Use is_ignored_kernel_symbol() and update tools/perf/util/symbol.h in patch #1 (2) Keep using is_core_symbol() in patch #2 (3) Update commit messages of the three patches Cc the maintainers of the updated non-module files: (1) Josh Poimboeuf -- scripts/faddr2line (2) Nathan Chancellor -- scripts/mod/modpost.h (3) Namhyung Kim -- tools/perf/util/symbol.h Tiezhu Yang (3): module/kallsyms: Rename is_mapping_symbol() to is_ignored_kernel_symbol() module/kallsyms: Refactor current symbol filtering into is_core_symbol() module/kallsyms: Ignore local labels and mapping symbols during module load include/linux/module_symbol.h | 7 +++-- kernel/module/kallsyms.c | 59 ++++++++++++++++++----------------- scripts/faddr2line | 2 +- scripts/mod/modpost.h | 2 +- tools/perf/util/symbol.h | 4 +-- 5 files changed, 39 insertions(+), 35 deletions(-) -- 2.42.0