From patchwork Tue Aug 18 15:50:21 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Taylor Simpson X-Patchwork-Id: 11721861 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 749131392 for ; Tue, 18 Aug 2020 15:56:52 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 4B59E2080C for ; Tue, 18 Aug 2020 15:56:52 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=quicinc.com header.i=@quicinc.com header.b="Let4h30t" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4B59E2080C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=quicinc.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:54288 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k83yl-00010L-Gl for patchwork-qemu-devel@patchwork.kernel.org; Tue, 18 Aug 2020 11:56:51 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:60576) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k83tD-0006QZ-78 for qemu-devel@nongnu.org; Tue, 18 Aug 2020 11:51:07 -0400 Received: from alexa-out-sd-01.qualcomm.com ([199.106.114.38]:55154) by eggs.gnu.org with esmtps (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1k83t7-0005rj-BN for qemu-devel@nongnu.org; Tue, 18 Aug 2020 11:51:06 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1597765861; x=1629301861; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=8nd5viD+HzYZKsc4W9p+p3Elrd7OLPtuiBz1vW1zvSg=; b=Let4h30tixt4Zs1pFKkl1Op8/ZGQkOKpAmpGhLp7kCDISVqSXSNc5ZJw PHQBNxbn2/YUPCLSP7ToAzhxLyY62BnKEfeW19FsP00qPqBsQg2cUVOdL 2bTexz54ykPmQKitst6J5lpwRXSs+2FLzKc0QsJo8wq8/98NmPZEKh9cq 8=; Received: from unknown (HELO ironmsg-SD-alpha.qualcomm.com) ([10.53.140.30]) by alexa-out-sd-01.qualcomm.com with ESMTP; 18 Aug 2020 08:50:57 -0700 Received: from vu-tsimpson-aus.qualcomm.com (HELO vu-tsimpson1-aus.qualcomm.com) ([10.222.150.1]) by ironmsg-SD-alpha.qualcomm.com with ESMTP; 18 Aug 2020 08:50:56 -0700 Received: by vu-tsimpson1-aus.qualcomm.com (Postfix, from userid 47164) id EDD1018D8; Tue, 18 Aug 2020 10:50:55 -0500 (CDT) From: Taylor Simpson To: qemu-devel@nongnu.org Subject: [RFC PATCH v3 08/34] Hexagon (target/hexagon) GDB Stub Date: Tue, 18 Aug 2020 10:50:21 -0500 Message-Id: <1597765847-16637-9-git-send-email-tsimpson@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1597765847-16637-1-git-send-email-tsimpson@quicinc.com> References: <1597765847-16637-1-git-send-email-tsimpson@quicinc.com> MIME-Version: 1.0 Received-SPF: pass client-ip=199.106.114.38; envelope-from=tsimpson@qualcomm.com; helo=alexa-out-sd-01.qualcomm.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/18 11:48:34 X-ACL-Warn: Detected OS = FreeBSD 9.x or newer [fuzzy] X-Spam_score_int: -32 X-Spam_score: -3.3 X-Spam_bar: --- X-Spam_report: (-3.3 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: ale@rev.ng, riku.voipio@iki.fi, richard.henderson@linaro.org, laurent@vivier.eu, tsimpson@quicinc.com, philmd@redhat.com, aleksandar.m.mail@gmail.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" GDB register read and write routines Signed-off-by: Taylor Simpson Reviewed-by: Richard Henderson --- target/hexagon/internal.h | 2 ++ target/hexagon/cpu.c | 2 ++ target/hexagon/gdbstub.c | 49 +++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 53 insertions(+) create mode 100644 target/hexagon/gdbstub.c diff --git a/target/hexagon/internal.h b/target/hexagon/internal.h index d3e4412..acddd91 100644 --- a/target/hexagon/internal.h +++ b/target/hexagon/internal.h @@ -37,4 +37,6 @@ extern const char * const hexagon_regnames[TOTAL_PER_THREAD_REGS]; extern void init_genptr(void); +extern int hexagon_gdb_read_register(CPUState *cpu, GByteArray *buf, int reg); +extern int hexagon_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg); #endif diff --git a/target/hexagon/cpu.c b/target/hexagon/cpu.c index d812913..e2c879c 100644 --- a/target/hexagon/cpu.c +++ b/target/hexagon/cpu.c @@ -284,6 +284,8 @@ static void hexagon_cpu_class_init(ObjectClass *c, void *data) cc->dump_state = hexagon_dump_state; cc->set_pc = hexagon_cpu_set_pc; cc->synchronize_from_tb = hexagon_cpu_synchronize_from_tb; + cc->gdb_read_register = hexagon_gdb_read_register; + cc->gdb_write_register = hexagon_gdb_write_register; cc->gdb_num_core_regs = TOTAL_PER_THREAD_REGS; cc->gdb_stop_before_watchpoint = true; cc->disas_set_info = hexagon_cpu_disas_set_info; diff --git a/target/hexagon/gdbstub.c b/target/hexagon/gdbstub.c new file mode 100644 index 0000000..a2ea528 --- /dev/null +++ b/target/hexagon/gdbstub.c @@ -0,0 +1,49 @@ +/* + * Copyright(c) 2019-2020 Qualcomm Innovation Center, Inc. All Rights Reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ + +#include "qemu/osdep.h" +#include "qemu-common.h" +#include "exec/gdbstub.h" +#include "cpu.h" +#include "internal.h" + +int hexagon_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n) +{ + HexagonCPU *cpu = HEXAGON_CPU(cs); + CPUHexagonState *env = &cpu->env; + + if (n < TOTAL_PER_THREAD_REGS) { + return gdb_get_regl(mem_buf, env->gpr[n]); + } + + g_assert_not_reached(); + return 0; +} + +int hexagon_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n) +{ + HexagonCPU *cpu = HEXAGON_CPU(cs); + CPUHexagonState *env = &cpu->env; + + if (n < TOTAL_PER_THREAD_REGS) { + env->gpr[n] = ldtul_p(mem_buf); + return sizeof(target_ulong); + } + + g_assert_not_reached(); + return 0; +}