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=-6.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,UNWANTED_LANGUAGE_BODY,URIBL_BLOCKED,USER_AGENT_GIT 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 20673C169C4 for ; Tue, 29 Jan 2019 12:25:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E57AC20870 for ; Tue, 29 Jan 2019 12:25:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1548764712; bh=W5NutnjzmOYCmG0/Pxg45GvbwmpPla6pBxKPgExQ/kk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=iFafjsFAp+Wt6vo6qqik0fYjir1cSooed+B0rU9LVXlUFexGvwA+Pa+s90mce5BJF S02rweVfztkMqE3Ewld7nPFMiPaXxbDDdJZI2zPLqSNdLggDd32n4kJaeT/6iYM55g MIxCX1b6YiCL6G1wEk2LMuoD42FRO4TcXgom6CTU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728933AbfA2MZK (ORCPT ); Tue, 29 Jan 2019 07:25:10 -0500 Received: from mail.kernel.org ([198.145.29.99]:35992 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728890AbfA2MZJ (ORCPT ); Tue, 29 Jan 2019 07:25:09 -0500 Received: from localhost.localdomain (unknown [60.186.218.186]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 633C920870; Tue, 29 Jan 2019 12:25:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1548764709; bh=W5NutnjzmOYCmG0/Pxg45GvbwmpPla6pBxKPgExQ/kk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=qPKG3HcZ7vIY/Tsv28zWlVpTR3PNWnSO3ZrtzFuQCy2W1uDM66M2evO0OaBSYpaLf exqBpNUPR1o5Tgnb889wV1YFkvPv1uiDhOwfuZrV6ItQhCrtuFxzpXqBqY6GMDFTML LOvYM/ZnRYmMFhx38myZwpnwXHQqKyHSkKZWiol0= From: guoren@kernel.org To: arnd@arndb.de, robh+dt@kernel.org, marc.zyngier@arm.com Cc: linux-kernel@vger.kernel.org, guoren@kernel.org, linux-arch@vger.kernel.org, Guo Ren Subject: [PATCH 07/10] csky: Fixup wrong pt_regs size Date: Tue, 29 Jan 2019 20:24:26 +0800 Message-Id: <1548764669-16656-7-git-send-email-guoren@kernel.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548764669-16656-1-git-send-email-guoren@kernel.org> References: <1548764669-16656-1-git-send-email-guoren@kernel.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Guo Ren The bug is from commit 2054f4af1957 ("csky: bugfix gdb coredump error.") We change the ELF_NGREG to ELF_NGREG - 2 to fit gdb&gcc define, but forgot modify ptrace regset. Now coredump use ELF_NRGEG to parse GPRs and ptrace use pt_regs_regset, so there are two different reg_sets for userspace. Signed-off-by: Guo Ren --- arch/csky/kernel/ptrace.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/csky/kernel/ptrace.c b/arch/csky/kernel/ptrace.c index 57f1afe..f2f12ff 100644 --- a/arch/csky/kernel/ptrace.c +++ b/arch/csky/kernel/ptrace.c @@ -8,6 +8,7 @@ #include #include #include +#include #include #include #include @@ -159,7 +160,7 @@ static int fpr_set(struct task_struct *target, static const struct user_regset csky_regsets[] = { [REGSET_GPR] = { .core_note_type = NT_PRSTATUS, - .n = ELF_NGREG, + .n = sizeof(struct pt_regs) / sizeof(u32), .size = sizeof(u32), .align = sizeof(u32), .get = &gpr_get, -- 2.7.4