From nobody Tue Feb 10 13:37:05 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1635761942300443.84416045714795; Mon, 1 Nov 2021 03:19:02 -0700 (PDT) Received: from localhost ([::1]:39550 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mhUP7-0007bk-Ab for importer@patchew.org; Mon, 01 Nov 2021 06:19:01 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:57036) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mhU8e-0001Qd-A3; Mon, 01 Nov 2021 06:02:00 -0400 Received: from out28-171.mail.aliyun.com ([115.124.28.171]:58698) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mhU8a-0001Td-Aq; Mon, 01 Nov 2021 06:01:59 -0400 Received: from roman-VirtualBox.hz.ali.com(mailfrom:zhiwei_liu@c-sky.com fp:SMTPD_---.LlcGtUT_1635760905) by smtp.aliyun-inc.com(10.147.43.230); Mon, 01 Nov 2021 18:01:47 +0800 X-Alimail-AntiSpam: AC=CONTINUE; BC=0.07453473|-1; CH=green; DM=|CONTINUE|false|; DS=CONTINUE|ham_system_inform|0.0231685-0.000144035-0.976687; FP=0|0|0|0|0|-1|-1|-1; HT=ay29a033018047213; MF=zhiwei_liu@c-sky.com; NM=1; PH=DS; RN=7; RT=7; SR=0; TI=SMTPD_---.LlcGtUT_1635760905; From: LIU Zhiwei To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [PATCH 04/13] target/riscv: Use gdb xml according to max mxlen Date: Mon, 1 Nov 2021 18:01:34 +0800 Message-Id: <20211101100143.44356-5-zhiwei_liu@c-sky.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211101100143.44356-1-zhiwei_liu@c-sky.com> References: <20211101100143.44356-1-zhiwei_liu@c-sky.com> MIME-Version: 1.0 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: none client-ip=115.124.28.171; envelope-from=zhiwei_liu@c-sky.com; helo=out28-171.mail.aliyun.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_NONE=0.001, UNPARSEABLE_RELAY=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: palmer@dabbelt.com, richard.henderson@linaro.org, bin.meng@windriver.com, Alistair.Francis@wdc.com, LIU Zhiwei Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZM-MESSAGEID: 1635761942735100001 Content-Type: text/plain; charset="utf-8" Signed-off-by: LIU Zhiwei Reviewed-by: Richard Henderson --- target/riscv/gdbstub.c | 73 +++++++++++++++++++++++++++++++----------- 1 file changed, 54 insertions(+), 19 deletions(-) diff --git a/target/riscv/gdbstub.c b/target/riscv/gdbstub.c index 23429179e2..15abbbdb54 100644 --- a/target/riscv/gdbstub.c +++ b/target/riscv/gdbstub.c @@ -24,11 +24,25 @@ int riscv_cpu_gdb_read_register(CPUState *cs, GByteArra= y *mem_buf, int n) { RISCVCPU *cpu =3D RISCV_CPU(cs); CPURISCVState *env =3D &cpu->env; + target_ulong tmp; =20 if (n < 32) { - return gdb_get_regl(mem_buf, env->gpr[n]); + tmp =3D env->gpr[n]; } else if (n =3D=3D 32) { - return gdb_get_regl(mem_buf, env->pc); + tmp =3D env->pc; + } else { + return 0; + } + + switch (env->misa_mxl_max) { + case MXL_RV32: + gdb_get_reg32(mem_buf, tmp); + break; + case MXL_RV64: + gdb_get_reg64(mem_buf, tmp); + break; + default: + g_assert_not_reached(); } return 0; } @@ -37,18 +51,32 @@ int riscv_cpu_gdb_write_register(CPUState *cs, uint8_t = *mem_buf, int n) { RISCVCPU *cpu =3D RISCV_CPU(cs); CPURISCVState *env =3D &cpu->env; - - if (n =3D=3D 0) { - /* discard writes to x0 */ - return sizeof(target_ulong); - } else if (n < 32) { - env->gpr[n] =3D ldtul_p(mem_buf); - return sizeof(target_ulong); + int length =3D 0; + target_ulong tmp; + + switch (env->misa_mxl_max) { + case MXL_RV32: + tmp =3D (uint32_t)ldl_p(mem_buf); + length =3D 4; + break; + case MXL_RV64: + if (cpu_get_xl(env) < MXL_RV64) { + tmp =3D (int32_t)ldq_p(mem_buf); + } else { + tmp =3D ldq_p(mem_buf); + } + length =3D 8; + break; + default: + g_assert_not_reached(); + } + if (n > 0 && n < 32) { + env->gpr[n] =3D tmp; } else if (n =3D=3D 32) { - env->pc =3D ldtul_p(mem_buf); - return sizeof(target_ulong); + env->pc =3D tmp; } - return 0; + + return length; } =20 static int riscv_gdb_get_fpu(CPURISCVState *env, GByteArray *buf, int n) @@ -198,13 +226,20 @@ void riscv_cpu_register_gdb_regs_for_features(CPUStat= e *cs) gdb_register_coprocessor(cs, riscv_gdb_get_fpu, riscv_gdb_set_fpu, 36, "riscv-32bit-fpu.xml", 0); } -#if defined(TARGET_RISCV32) - gdb_register_coprocessor(cs, riscv_gdb_get_virtual, riscv_gdb_set_virt= ual, - 1, "riscv-32bit-virtual.xml", 0); -#elif defined(TARGET_RISCV64) - gdb_register_coprocessor(cs, riscv_gdb_get_virtual, riscv_gdb_set_virt= ual, - 1, "riscv-64bit-virtual.xml", 0); -#endif + switch (env->misa_mxl_max) { + case MXL_RV32: + gdb_register_coprocessor(cs, riscv_gdb_get_virtual, + riscv_gdb_set_virtual, + 1, "riscv-32bit-virtual.xml", 0); + break; + case MXL_RV64: + gdb_register_coprocessor(cs, riscv_gdb_get_virtual, + riscv_gdb_set_virtual, + 1, "riscv-64bit-virtual.xml", 0); + break; + default: + g_assert_not_reached(); + } =20 gdb_register_coprocessor(cs, riscv_gdb_get_csr, riscv_gdb_set_csr, riscv_gen_dynamic_csr_xml(cs, cs->gdb_num_reg= s), --=20 2.25.1