From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5B814C433E2 for ; Mon, 29 Mar 2021 18:18:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2211D6148E for ; Mon, 29 Mar 2021 18:18:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231241AbhC2SS0 (ORCPT ); Mon, 29 Mar 2021 14:18:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38488 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231138AbhC2SR4 (ORCPT ); Mon, 29 Mar 2021 14:17:56 -0400 Received: from ustc.edu.cn (email6.ustc.edu.cn [IPv6:2001:da8:d800::8]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id E3EC5C061574 for ; Mon, 29 Mar 2021 11:17:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mail.ustc.edu.cn; s=dkim; h=Received:Date:From:To:Cc:Subject: Message-ID:MIME-Version:Content-Type:Content-Transfer-Encoding; bh=8AEiwnSsasg6gLp5dzgvHy4Ekf+YglgM5SFsq1PHSp4=; b=MytSx5WYdNAIS raZizWn3fBGBzqGuCU8LEm7rANsdZA2U6+ZjrFVx2zVFowB/SvEox+M+j1hZiKR7 0PzbYC571M5H54l4M+t8RZ4v2YbIlnEAtGwZnvEBKPnESue73FYaTt6dEfPgNvCh lVZ5EqqDukM+TZq7JTqjSzWVvQNcHQ= Received: from xhacker (unknown [101.86.19.180]) by newmailweb.ustc.edu.cn (Coremail) with SMTP id LkAmygAnLkqxGWJgMuZpAA--.42274S2; Tue, 30 Mar 2021 02:17:22 +0800 (CST) Date: Tue, 30 Mar 2021 02:12:26 +0800 From: Jisheng Zhang To: Paul Walmsley , Palmer Dabbelt , Albert Ou , Masami Hiramatsu , Guo Ren Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH] riscv: add do_page_fault and do_trap_break into the kprobes blacklist Message-ID: <20210330021226.2fc7b2ec@xhacker> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-CM-TRANSID: LkAmygAnLkqxGWJgMuZpAA--.42274S2 X-Coremail-Antispam: 1UD129KBjvdXoW7GFyxKw47Gw4UXFy7JFW7XFb_yoWDKrg_C3 Z2k3yfWrWrJa109F97tws3GF40y3sYkF93G3ZFvrWrCFyYgr18Kw45ta15tr1DX34fua97 Zr9xXr93G3WIqjkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbFxYjsxI4VWDJwAYFVCjjxCrM7AC8VAFwI0_Gr0_Xr1l1xkIjI8I 6I8E6xAIw20EY4v20xvaj40_Wr0E3s1l1IIY67AEw4v_Jr0_Jr4l8cAvFVAK0II2c7xJM2 8CjxkF64kEwVA0rcxSw2x7M28EF7xvwVC0I7IYx2IY67AKxVWUCVW8JwA2z4x0Y4vE2Ix0 cI8IcVCY1x0267AKxVW8JVWxJwA2z4x0Y4vEx4A2jsIE14v26r4UJVWxJr1l84ACjcxK6I 8E87Iv6xkF7I0E14v26F4UJVW0owAS0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC 0VAKzVAqx4xG6I80ewAv7VC0I7IYx2IY67AKxVWUXVWUAwAv7VC2z280aVAFwI0_Jr0_Gr 1lOx8S6xCaFVCjc4AY6r1j6r4UM4x0Y48IcVAKI48JMxAIw28IcxkI7VAKI48JMxC20s02 6xCaFVCjc4AY6r1j6r4UMI8I3I0E5I8CrVAFwI0_Jr0_Jr4lx2IqxVCjr7xvwVAFwI0_Jr I_JrWlx4CE17CEb7AF67AKxVWUAVWUtwCIc40Y0x0EwIxGrwCI42IY6xIIjxv20xvE14v2 6r1j6r1xMIIF0xvE2Ix0cI8IcVCY1x0267AKxVW8JVWxJwCI42IY6xAIw20EY4v20xvaj4 0_Zr0_Wr1UMIIF0xvEx4A2jsIE14v26r1j6r4UMIIF0xvEx4A2jsIEc7CjxVAFwI0_Gr0_ Gr1UYxBIdaVFxhVjvjDU0xZFpf9x07j1VbkUUUUU= X-CM-SenderInfo: xmv2xttqjtqzxdloh3xvwfhvlgxou0/ Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jisheng Zhang These two functions are used to implement the kprobes feature so they can't be kprobed. Fixes: c22b0bcb1dd0 ("riscv: Add kprobes supported") Signed-off-by: Jisheng Zhang --- arch/riscv/kernel/traps.c | 1 + arch/riscv/mm/fault.c | 1 + 2 files changed, 2 insertions(+) diff --git a/arch/riscv/kernel/traps.c b/arch/riscv/kernel/traps.c index 0879b5df11b9..1357abf79570 100644 --- a/arch/riscv/kernel/traps.c +++ b/arch/riscv/kernel/traps.c @@ -178,6 +178,7 @@ asmlinkage __visible void do_trap_break(struct pt_regs *regs) else die(regs, "Kernel BUG"); } +NOKPROBE_SYMBOL(do_trap_break); #ifdef CONFIG_GENERIC_BUG int is_valid_bugaddr(unsigned long pc) diff --git a/arch/riscv/mm/fault.c b/arch/riscv/mm/fault.c index 8f17519208c7..c5dbd55cbf7c 100644 --- a/arch/riscv/mm/fault.c +++ b/arch/riscv/mm/fault.c @@ -328,3 +328,4 @@ asmlinkage void do_page_fault(struct pt_regs *regs) } return; } +NOKPROBE_SYMBOL(do_page_fault); -- 2.31.0