From patchwork Sun Jul 17 04:29:27 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xianting Tian X-Patchwork-Id: 12920426 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 3AC25CCA483 for ; Sun, 17 Jul 2022 04:30:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:List-Subscribe:List-Help: List-Post:List-Archive:List-Unsubscribe:List-Id:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=9GRGTcYe+VAVmTkwrtZNT8fwjUuD9UxUgNIL+EUgnec=; b=duKvxOHYjtylVu +KrkaphtfcvAvadB3ec36ubxYgXPxF4Hjqk9koJSOEC3J615Uggu2Mu2zjhCHLl9r7CWEU3nThBnL 03yfKF0w5QwFrcWIFd+zPuLdH8BSmUnv4ZE+09Y/PBdkwY1q0StNtmHcK0AqlvWUUd7hMn9qAo/0o Puh+UeEQs16DB1lF4oafQdcrH35w4/bOe8WoSb+f563R9DwU8XmweqHNiEOP9I6RiZH1ZU+xEjNj4 PTFNQci/L2kB2tSX7VFcZIiVmNva7Dp20omKGcPo/HDUgKIyLAVdhPy+CQrL4+YOn9kGWdzinzZNr ricgM2a6ZuQ4e2ppiuPg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oCvuh-0040D0-Ij; Sun, 17 Jul 2022 04:29:51 +0000 Received: from out30-45.freemail.mail.aliyun.com ([115.124.30.45]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oCvua-00406P-Ap for linux-riscv@lists.infradead.org; Sun, 17 Jul 2022 04:29:46 +0000 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R551e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=ay29a033018046049;MF=xianting.tian@linux.alibaba.com;NM=1;PH=DS;RN=9;SR=0;TI=SMTPD_---0VJWxqTo_1658032177; Received: from localhost(mailfrom:xianting.tian@linux.alibaba.com fp:SMTPD_---0VJWxqTo_1658032177) by smtp.aliyun-inc.com; Sun, 17 Jul 2022 12:29:38 +0800 From: Xianting Tian To: crash-utility@redhat.com, mick@ics.forth.gr, heinrich.schuchardt@canonical.com, guoren@kernel.org, k-hagio-ab@nec.com Cc: linux-riscv@lists.infradead.org, hschauhan@nulltrace.org, huanyi.xj@alibaba-inc.com, Xianting Tian Subject: [PATCH 6/8] RISCV64: Add 'help -r' command support Date: Sun, 17 Jul 2022 12:29:27 +0800 Message-Id: <20220717042929.370022-7-xianting.tian@linux.alibaba.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220717042929.370022-1-xianting.tian@linux.alibaba.com> References: <20220717042929.370022-1-xianting.tian@linux.alibaba.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220716_212944_566181_9F434DA6 X-CRM114-Status: UNSURE ( 6.36 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Add support form printing out the registers from the dump file. With the patch, we can get the regs, crash> help -r CPU 0: epc : ffffffff800078f8 ra : ffffffff8008862c sp : ff20000010333b90 gp : ffffffff810dde38 tp : ff6000000226c200 t0 : ffffffff8032be68 t1 : 0720072007200720 t2 : 666666666666663c s0 : ff20000010333cf0 s1 : 0000000000000000 a0 : ff20000010333b98 a1 : 0000000000000001 a2 : 0000000000000010 a3 : 0000000000000000 a4 : 0000000000000000 a5 : ff60000001c78000 a6 : 000000000000003c a7 : ffffffff8035c9a4 s2 : ffffffff810df0a8 s3 : ffffffff810df718 s4 : ff20000010333b98 s5 : 0000000000000000 s6 : 0000000000000007 s7 : ffffffff80c4a468 s8 : 00ffffffca281410 s9 : 0000000000000007 s10: 00aaaaaab5bb6700 s11: 0000000000000001 t3 : ff60000001218f00 t4 : ff60000001218f00 t5 : ff60000001218000 t6 : ff20000010333988 Signed-off-by: Xianting Tian --- riscv64.c | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) diff --git a/riscv64.c b/riscv64.c index c00ce90..475dc98 100644 --- a/riscv64.c +++ b/riscv64.c @@ -1309,6 +1309,44 @@ riscv64_init(int when) void riscv64_display_regs_from_elf_notes(int cpu, FILE *ofp) { + const struct machine_specific *ms = machdep->machspec; + struct riscv64_register *regs; + + if (!ms->crash_task_regs) { + error(INFO, "registers not collected for cpu %d\n", cpu); + return; + } + + regs = &ms->crash_task_regs[cpu]; + if (!regs->regs[RISCV64_REGS_SP] && !regs->regs[RISCV64_REGS_EPC]) { + error(INFO, "registers not collected for cpu %d\n", cpu); + return; + } + + /* Print riscv64 32 regs */ + fprintf(ofp, + "epc : " REG_FMT " ra : " REG_FMT " sp : " REG_FMT "\n" + " gp : " REG_FMT " tp : " REG_FMT " t0 : " REG_FMT "\n" + " t1 : " REG_FMT " t2 : " REG_FMT " s0 : " REG_FMT "\n" + " s1 : " REG_FMT " a0 : " REG_FMT " a1 : " REG_FMT "\n" + " a2 : " REG_FMT " a3 : " REG_FMT " a4 : " REG_FMT "\n" + " a5 : " REG_FMT " a6 : " REG_FMT " a7 : " REG_FMT "\n" + " s2 : " REG_FMT " s3 : " REG_FMT " s4 : " REG_FMT "\n" + " s5 : " REG_FMT " s6 : " REG_FMT " s7 : " REG_FMT "\n" + " s8 : " REG_FMT " s9 : " REG_FMT " s10: " REG_FMT "\n" + " s11: " REG_FMT " t3 : " REG_FMT " t4 : " REG_FMT "\n" + " t5 : " REG_FMT " t6 : " REG_FMT "\n", + regs->regs[0], regs->regs[1], regs->regs[2], + regs->regs[3], regs->regs[4], regs->regs[5], + regs->regs[6], regs->regs[7], regs->regs[8], + regs->regs[9], regs->regs[10], regs->regs[11], + regs->regs[12], regs->regs[13], regs->regs[14], + regs->regs[15], regs->regs[16], regs->regs[17], + regs->regs[18], regs->regs[19], regs->regs[20], + regs->regs[21], regs->regs[22], regs->regs[23], + regs->regs[24], regs->regs[25], regs->regs[26], + regs->regs[27], regs->regs[28], regs->regs[29], + regs->regs[30], regs->regs[31]); } #else /* !RISCV64 */