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Thu, 29 Oct 2020 20:09:05 -0400 Received: from unknown (HELO ironmsg01-sd.qualcomm.com) ([10.53.140.141]) by alexa-out-sd-02.qualcomm.com with ESMTP; 29 Oct 2020 17:08:44 -0700 Received: from vu-tsimpson-aus.qualcomm.com (HELO vu-tsimpson1-aus.qualcomm.com) ([10.222.150.1]) by ironmsg01-sd.qualcomm.com with ESMTP; 29 Oct 2020 17:08:43 -0700 Received: by vu-tsimpson1-aus.qualcomm.com (Postfix, from userid 47164) id AF3F44121; Thu, 29 Oct 2020 19:08:43 -0500 (CDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1604016536; x=1635552536; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=+xXU0Gd1wUe3SSmyqUo96jQ5pVBSiFlE7hyiqmhJjHI=; b=xnAqH8AJMdhXXHWk1VuTSPnEF7tQmjj9TL7/CAs9AseL9zm3T95QjVdM Iy7yMwEdZm3aefQL+0ksrHK+VduXV7rFxkfLwpRc49eDTcT9sI6dfzJYs AUFTklUL1YasJ+citWY7K6IZajEFy23UkY7ZKDt8wD+QDVF/MIOZ08Bje o=; X-QCInternal: smtphost From: Taylor Simpson To: qemu-devel@nongnu.org Subject: [RFC PATCH v5 08/33] Hexagon (target/hexagon) GDB Stub Date: Thu, 29 Oct 2020 19:08:14 -0500 Message-Id: <1604016519-28065-9-git-send-email-tsimpson@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1604016519-28065-1-git-send-email-tsimpson@quicinc.com> References: <1604016519-28065-1-git-send-email-tsimpson@quicinc.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=199.106.114.39; envelope-from=tsimpson@qualcomm.com; helo=alexa-out-sd-02.qualcomm.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/29 19:58:53 X-ACL-Warn: Detected OS = FreeBSD 9.x or newer [fuzzy] X-Spam_score_int: -40 X-Spam_score: -4.1 X-Spam_bar: ---- X-Spam_report: (-4.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=0.249, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-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, bcain@quicinc.com, richard.henderson@linaro.org, at.org@qualcomm.com, laurent@vivier.eu, tsimpson@quicinc.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) GDB register read and write routines Signed-off-by: Taylor Simpson Reviewed-by: Richard Henderson --- target/hexagon/internal.h | 3 +++ target/hexagon/cpu.c | 2 ++ target/hexagon/gdbstub.c | 47 +++++++++++++++++++++++++++++++++++++++++++= ++++ 3 files changed, 52 insertions(+) create mode 100644 target/hexagon/gdbstub.c diff --git a/target/hexagon/internal.h b/target/hexagon/internal.h index 327bad9..961318a 100644 --- a/target/hexagon/internal.h +++ b/target/hexagon/internal.h @@ -29,6 +29,9 @@ } \ } while (0) =20 +extern int hexagon_gdb_read_register(CPUState *cpu, GByteArray *buf, int r= eg); +extern int hexagon_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg= ); + extern void hexagon_debug(CPUHexagonState *env); =20 extern const char * const hexagon_regnames[TOTAL_PER_THREAD_REGS]; diff --git a/target/hexagon/cpu.c b/target/hexagon/cpu.c index 5e0da3f..32aa982 100644 --- a/target/hexagon/cpu.c +++ b/target/hexagon/cpu.c @@ -280,6 +280,8 @@ static void hexagon_cpu_class_init(ObjectClass *c, void= *data) cc->dump_state =3D hexagon_dump_state; cc->set_pc =3D hexagon_cpu_set_pc; cc->synchronize_from_tb =3D hexagon_cpu_synchronize_from_tb; + cc->gdb_read_register =3D hexagon_gdb_read_register; + cc->gdb_write_register =3D hexagon_gdb_write_register; cc->gdb_num_core_regs =3D TOTAL_PER_THREAD_REGS; cc->gdb_stop_before_watchpoint =3D true; cc->disas_set_info =3D hexagon_cpu_disas_set_info; diff --git a/target/hexagon/gdbstub.c b/target/hexagon/gdbstub.c new file mode 100644 index 0000000..e8c10b2 --- /dev/null +++ b/target/hexagon/gdbstub.c @@ -0,0 +1,47 @@ +/* + * Copyright(c) 2019-2020 Qualcomm Innovation Center, Inc. All Rights Res= erved. + * + * 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 =3D HEXAGON_CPU(cs); + CPUHexagonState *env =3D &cpu->env; + + if (n < TOTAL_PER_THREAD_REGS) { + return gdb_get_regl(mem_buf, env->gpr[n]); + } + + g_assert_not_reached(); +} + +int hexagon_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n) +{ + HexagonCPU *cpu =3D HEXAGON_CPU(cs); + CPUHexagonState *env =3D &cpu->env; + + if (n < TOTAL_PER_THREAD_REGS) { + env->gpr[n] =3D ldtul_p(mem_buf); + return sizeof(target_ulong); + } + + g_assert_not_reached(); +} --=20 2.7.4