From patchwork Mon Apr 5 14:31:23 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cupertino Miranda X-Patchwork-Id: 1462403 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=lists.infradead.org (client-ip=2001:8b0:10b:1:d65d:64ff:fe57:4e05; helo=desiato.infradead.org; envelope-from=linux-snps-arc-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org; receiver=) Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; secure) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=desiato.20200630 header.b=cTt3umYY; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20161025 header.b=u4xleXaw; dkim-atps=neutral Received: from desiato.infradead.org (desiato.infradead.org [IPv6:2001:8b0:10b:1:d65d:64ff:fe57:4e05]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4FDY5q68Zsz9sSC for ; Tue, 6 Apr 2021 00:32:31 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version: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=cyPectv4D/NlJwJRpkHFO92DAOidb/RQnbUQvgSEg18=; b=cTt3umYY18mAG4Mj0ia464iTB wXm7V2Lf5m3m8hMo7vbNQSuVyhJ2dqYMPmFZu+iw5GYd9Jrlm8T+Zr+XIOI/KwFYpeFKS2FajkF+R ozLqQTX9IH162D0kGv2dM2rUfLUqMvqcHOcTOulN1C4yUaNslmaTYXzgs2Eib1AqR5tMJRK6kOisL V3zZhKFCmfqzJPEayeYpFnGEmrspxBEUhs73Jl+Rf5YKQW5Brtp7rWvE/HGmCEuSIowdNesZMIlrH nTdi/FoxTR6D1+Mfiaog1TUCOsMJmR3w7eSqn+f+1PQDpK98VSe8Ypo1oNZmPNIB5oM8Wv4g/Z9Ol eQENy2/ug==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lTQHF-00HPbT-02; Mon, 05 Apr 2021 14:32:29 +0000 Received: from mail-wm1-x330.google.com ([2a00:1450:4864:20::330]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lTQH6-00HPXa-GY for linux-snps-arc@lists.infradead.org; Mon, 05 Apr 2021 14:32:23 +0000 Received: by mail-wm1-x330.google.com with SMTP id o6so2862258wmq.3 for ; Mon, 05 Apr 2021 07:32:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=BY2DlGfthi/5EpjNo0Gz8ouWxFRGsyZJp6AAsyCinj8=; b=u4xleXawVJ8K1Lu+aplES/Lu85MNx1rd9J+34odlp/x4QFLY57gPxpCO2zv8telliJ f0kFpEO7c0unPkYffukvcKWPCFEKctF/sOsLuX5QC2PthllLIsHIdnQOyiOUFnQSxUdp blXr/jFYyIHV1T1Repo9Rsf+mJu2SXE8Rp+3ouwnCnuEvv1IV73G01UhgiIZFfeR5gDr crpBIELt+BhehshZDD1wOqmEkize1zor/AN5d1NxqMbBEk+yOa7EyEdpP3j1Hebrq4fK yNM+WJV7iWbTWc2F/K64xIEg4pxFAXM1Gcs9eP2ouLxmkB0c6tdVkW6hNYtJIlsV37W+ a4FQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=BY2DlGfthi/5EpjNo0Gz8ouWxFRGsyZJp6AAsyCinj8=; b=tgBLOKrqox5R06Rxrwq7kpkEb9TWI741OU34F8LXmezUGrid40q+0rcEiMBzBPPtgR 4ZuYlj7cCVAi+dNeun1fH2yZASybDzWoPNpxV2QPAzgx7FYf6PtRGy9EJOoXzA6wJ8Ik 6K2oaql3jL8e2vW+/pCVWowx1EIq7lHSVGNWqnWWMG0EgXklQbcO9rUbuYPMYRIr5Ssp RjyWoqn+s8TJwG9doie61JTU1oxjuAtct0S50sFhoDSVqvwyJNOzaGx9vDZVBOUqDFOS Txpajj+E1kyWQK8DuttN96LVL5iNg7Wf15kORUOMAPPrt5of8kj95+bl3FL7pfu96elY 8Qvw== X-Gm-Message-State: AOAM531QjTgmNH7L8xiZDfWApe4kBv4eIJg+kyJpHTJLahwki4pJyor/ 9Ut31BK6JTV96rDdLhiCCd4= X-Google-Smtp-Source: ABdhPJzI5JJOOYRo3G6nJ3mWnVjpZQD7H8yfXQqvMMyZEmqVmcD0PYDIcd2Osyxf1wommlWSbF+p3w== X-Received: by 2002:a1c:6241:: with SMTP id w62mr25481929wmb.79.1617633140064; Mon, 05 Apr 2021 07:32:20 -0700 (PDT) Received: from cmiranda-laptop.localdomain (bl15-158-218.dsl.telepac.pt. [188.80.158.218]) by smtp.gmail.com with ESMTPSA id k3sm8231552wrc.67.2021.04.05.07.32.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 05 Apr 2021 07:32:19 -0700 (PDT) From: cupertinomiranda@gmail.com To: qemu-devel@nongnu.org Cc: linux-snps-arc@lists.infradead.org, claziss@synopsys.com, shahab@synopsys.com, cmiranda@synopsys.com Subject: [PATCH 12/27] arc: Add gdbstub and XML for debugging support Date: Mon, 5 Apr 2021 15:31:23 +0100 Message-Id: <20210405143138.17016-13-cupertinomiranda@gmail.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210405143138.17016-1-cupertinomiranda@gmail.com> References: <20210405143138.17016-1-cupertinomiranda@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210405_153220_784839_1E732CDE X-CRM114-Status: GOOD ( 11.82 ) X-Spam-Score: -0.2 (/) X-Spam-Report: Spam detection software, running on the system "desiato.infradead.org", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: From: Shahab Vahedi Register layout for the target and the mechanisms to read and set them. Signed-off-by: Shahab Vahedi --- gdb-xml/arc-v2-aux.xml | 32 +++ gdb-xml/arc-v2-core.xml | 45 +++++ gdb-xml/arc-v2-other.xml | 235 ++++++++++++++++++++++ target/arc/gdbstub.c | 421 +++++++++++++++++ [...] Content analysis details: (-0.2 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2a00:1450:4864:20:0:0:0:330 listed in] [list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider [cupertinomiranda[at]gmail.com] -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid X-BeenThere: linux-snps-arc@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux on Synopsys ARC Processors List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-snps-arc" Errors-To: linux-snps-arc-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org From: Shahab Vahedi Register layout for the target and the mechanisms to read and set them. Signed-off-by: Shahab Vahedi --- gdb-xml/arc-v2-aux.xml | 32 +++ gdb-xml/arc-v2-core.xml | 45 +++++ gdb-xml/arc-v2-other.xml | 235 ++++++++++++++++++++++ target/arc/gdbstub.c | 421 +++++++++++++++++++++++++++++++++++++++ target/arc/gdbstub.h | 157 +++++++++++++++ 5 files changed, 890 insertions(+) create mode 100644 gdb-xml/arc-v2-aux.xml create mode 100644 gdb-xml/arc-v2-core.xml create mode 100644 gdb-xml/arc-v2-other.xml create mode 100644 target/arc/gdbstub.c create mode 100644 target/arc/gdbstub.h diff --git a/gdb-xml/arc-v2-aux.xml b/gdb-xml/arc-v2-aux.xml new file mode 100644 index 0000000000..e18168ad05 --- /dev/null +++ b/gdb-xml/arc-v2-aux.xml @@ -0,0 +1,32 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/gdb-xml/arc-v2-core.xml b/gdb-xml/arc-v2-core.xml new file mode 100644 index 0000000000..c925a6994c --- /dev/null +++ b/gdb-xml/arc-v2-core.xml @@ -0,0 +1,45 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/gdb-xml/arc-v2-other.xml b/gdb-xml/arc-v2-other.xml new file mode 100644 index 0000000000..9824f518cc --- /dev/null +++ b/gdb-xml/arc-v2-other.xml @@ -0,0 +1,235 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/target/arc/gdbstub.c b/target/arc/gdbstub.c new file mode 100644 index 0000000000..a09cdb3f45 --- /dev/null +++ b/target/arc/gdbstub.c @@ -0,0 +1,421 @@ +/* + * QEMU ARC CPU + * + * Copyright (c) 2020 Synppsys Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, see + * http://www.gnu.org/licenses/lgpl-2.1.html + */ + +#include "qemu/osdep.h" +#include "exec/gdbstub.h" +#include "arc-common.h" +#include "target/arc/regs.h" +#include "irq.h" +#include "gdbstub.h" +#include "exec/helper-proto.h" + +/* gets the register address for a particular processor */ +#define REG_ADDR(reg, processor_type) \ + arc_aux_reg_address_for((reg), (processor_type)) + +#define GDB_GET_REG gdb_get_reg32 + +int arc_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n) +{ + ARCCPU *cpu = ARC_CPU(cs); + CPUARCState *env = &cpu->env; + target_ulong regval = 0; + + switch (n) { + case 0 ... 31: + regval = env->r[n]; + break; + case GDB_REG_58: + regval = env->r[58]; + break; + case GDB_REG_59: + regval = env->r[59]; + break; + case GDB_REG_60: + regval = env->r[60]; + break; + case GDB_REG_63: + regval = env->r[63]; + break; + default: + assert(!"Unsupported register is being read."); + } + + return GDB_GET_REG(mem_buf, regval); +} + +int arc_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n) +{ + ARCCPU *cpu = ARC_CPU(cs); + CPUARCState *env = &cpu->env; + target_ulong regval = ldl_p(mem_buf); + + switch (n) { + case 0 ... 31: + env->r[n] = regval; + break; + case GDB_REG_58: + env->r[58] = regval; + break; + case GDB_REG_59: + env->r[59] = regval; + break; + case GDB_REG_60: + env->r[60] = regval; + break; + case GDB_REG_63: + env->r[63] = regval; + break; + default: + assert(!"Unsupported register is being written."); + } + + return 4; +} + + +static int +arc_aux_minimal_gdb_get_reg(CPUARCState *env, GByteArray *mem_buf, int regnum) +{ + ARCCPU *cpu = env_archcpu(env); + target_ulong regval = 0; + + switch (regnum) { + case GDB_AUX_MIN_REG_PC: + regval = env->pc & ((target_ulong) 0xfffffffffffffffe); + break; + case GDB_AUX_MIN_REG_LPS: + regval = helper_lr(env, REG_ADDR(AUX_ID_lp_start, cpu->family)); + break; + case GDB_AUX_MIN_REG_LPE: + regval = helper_lr(env, REG_ADDR(AUX_ID_lp_end, cpu->family)); + break; + case GDB_AUX_MIN_REG_STATUS: + regval = pack_status32(&env->stat); + break; + default: + assert(!"Unsupported minimal auxiliary register is being read."); + } + return GDB_GET_REG(mem_buf, regval); +} + + +static int +arc_aux_minimal_gdb_set_reg(CPUARCState *env, uint8_t *mem_buf, int regnum) +{ + ARCCPU *cpu = env_archcpu(env); + target_ulong regval = ldl_p(mem_buf); + switch (regnum) { + case GDB_AUX_MIN_REG_PC: + env->pc = regval & ((target_ulong) 0xfffffffffffffffe); + break; + case GDB_AUX_MIN_REG_LPS: + helper_sr(env, regval, REG_ADDR(AUX_ID_lp_start, cpu->family)); + break; + case GDB_AUX_MIN_REG_LPE: + helper_sr(env, regval, REG_ADDR(AUX_ID_lp_end, cpu->family)); + break; + case GDB_AUX_MIN_REG_STATUS: + unpack_status32(&env->stat, regval); + break; + default: + assert(!"Unsupported minimal auxiliary register is being written."); + } + return 4; +} + + +static int +arc_aux_other_gdb_get_reg(CPUARCState *env, GByteArray *mem_buf, int regnum) +{ + ARCCPU *cpu = env_archcpu(env); + target_ulong regval = 0; + switch (regnum) { + case GDB_AUX_OTHER_REG_TIMER_BUILD: + regval = helper_lr(env, REG_ADDR(AUX_ID_timer_build, cpu->family)); + break; + case GDB_AUX_OTHER_REG_IRQ_BUILD: + regval = helper_lr(env, REG_ADDR(AUX_ID_irq_build, cpu->family)); + break; + case GDB_AUX_OTHER_REG_MPY_BUILD: + regval = helper_lr(env, REG_ADDR(AUX_ID_mpy_build, cpu->family)); + break; + case GDB_AUX_OTHER_REG_VECBASE_BUILD: + regval = cpu->vecbase_build; + break; + case GDB_AUX_OTHER_REG_ISA_CONFIG: + regval = cpu->isa_config; + break; + case GDB_AUX_OTHER_REG_TIMER_CNT0: + regval = helper_lr(env, REG_ADDR(AUX_ID_count0, cpu->family)); + break; + case GDB_AUX_OTHER_REG_TIMER_CTRL0: + regval = helper_lr(env, REG_ADDR(AUX_ID_control0, cpu->family)); + break; + case GDB_AUX_OTHER_REG_TIMER_LIM0: + regval = helper_lr(env, REG_ADDR(AUX_ID_limit0, cpu->family)); + break; + case GDB_AUX_OTHER_REG_TIMER_CNT1: + regval = helper_lr(env, REG_ADDR(AUX_ID_count1, cpu->family)); + break; + case GDB_AUX_OTHER_REG_TIMER_CTRL1: + regval = helper_lr(env, REG_ADDR(AUX_ID_control1, cpu->family)); + break; + case GDB_AUX_OTHER_REG_TIMER_LIM1: + regval = helper_lr(env, REG_ADDR(AUX_ID_limit1, cpu->family)); + break; + case GDB_AUX_OTHER_REG_PID: + regval = helper_lr(env, REG_ADDR(AUX_ID_pid, cpu->family)); + break; + case GDB_AUX_OTHER_REG_TLBPD0: + regval = helper_lr(env, REG_ADDR(AUX_ID_tlbpd0, cpu->family)); + break; + case GDB_AUX_OTHER_REG_TLBPD1: + regval = helper_lr(env, REG_ADDR(AUX_ID_tlbpd1, cpu->family)); + break; + case GDB_AUX_OTHER_REG_TLB_INDEX: + regval = helper_lr(env, REG_ADDR(AUX_ID_tlbindex, cpu->family)); + break; + case GDB_AUX_OTHER_REG_TLB_CMD: + regval = helper_lr(env, REG_ADDR(AUX_ID_tlbcommand, cpu->family)); + break; + /* MPU */ + case GDB_AUX_OTHER_REG_MPU_BUILD: + regval = helper_lr(env, REG_ADDR(AUX_ID_mpu_build, cpu->family)); + break; + case GDB_AUX_OTHER_REG_MPU_EN: + regval = helper_lr(env, REG_ADDR(AUX_ID_mpuen, cpu->family)); + break; + case GDB_AUX_OTHER_REG_MPU_ECR: + regval = helper_lr(env, REG_ADDR(AUX_ID_mpuic, cpu->family)); + break; + case GDB_AUX_OTHER_REG_MPU_BASE0 ... GDB_AUX_OTHER_REG_MPU_BASE15: { + const uint8_t index = regnum - GDB_AUX_OTHER_REG_MPU_BASE0; + regval = helper_lr(env, REG_ADDR(AUX_ID_mpurdb0 + index, cpu->family)); + break; + } + case GDB_AUX_OTHER_REG_MPU_PERM0 ... GDB_AUX_OTHER_REG_MPU_PERM15: { + const uint8_t index = regnum - GDB_AUX_OTHER_REG_MPU_PERM0; + regval = helper_lr(env, REG_ADDR(AUX_ID_mpurdp0 + index, cpu->family)); + break; + } + /* exceptions */ + case GDB_AUX_OTHER_REG_ERSTATUS: + regval = helper_lr(env, REG_ADDR(AUX_ID_erstatus, cpu->family)); + break; + case GDB_AUX_OTHER_REG_ERBTA: + regval = helper_lr(env, REG_ADDR(AUX_ID_erbta, cpu->family)); + break; + case GDB_AUX_OTHER_REG_ECR: + regval = helper_lr(env, REG_ADDR(AUX_ID_ecr, cpu->family)); + break; + case GDB_AUX_OTHER_REG_ERET: + regval = helper_lr(env, REG_ADDR(AUX_ID_eret, cpu->family)); + break; + case GDB_AUX_OTHER_REG_EFA: + regval = helper_lr(env, REG_ADDR(AUX_ID_efa, cpu->family)); + break; + /* interrupt */ + case GDB_AUX_OTHER_REG_ICAUSE: + regval = helper_lr(env, REG_ADDR(AUX_ID_icause, cpu->family)); + break; + case GDB_AUX_OTHER_REG_IRQ_CTRL: + regval = helper_lr(env, REG_ADDR(AUX_ID_aux_irq_ctrl, cpu->family)); + break; + case GDB_AUX_OTHER_REG_IRQ_ACT: + regval = helper_lr(env, REG_ADDR(AUX_ID_aux_irq_act, cpu->family)); + break; + case GDB_AUX_OTHER_REG_IRQ_PRIO_PEND: + regval = env->irq_priority_pending; + break; + case GDB_AUX_OTHER_REG_IRQ_HINT: + regval = helper_lr(env, REG_ADDR(AUX_ID_aux_irq_hint, cpu->family)); + break; + case GDB_AUX_OTHER_REG_IRQ_SELECT: + regval = helper_lr(env, REG_ADDR(AUX_ID_irq_select, cpu->family)); + break; + case GDB_AUX_OTHER_REG_IRQ_ENABLE: + regval = env->irq_bank[env->irq_select & 0xff].enable; + break; + case GDB_AUX_OTHER_REG_IRQ_TRIGGER: + regval = helper_lr(env, REG_ADDR(AUX_ID_irq_trigger, cpu->family)); + break; + case GDB_AUX_OTHER_REG_IRQ_STATUS: + regval = helper_lr(env, REG_ADDR(AUX_ID_irq_status, cpu->family)); + break; + case GDB_AUX_OTHER_REG_IRQ_PULSE: + regval = 0; /* write only for clearing the pulse triggered interrupt */ + break; + case GDB_AUX_OTHER_REG_IRQ_PENDING: + regval = helper_lr(env, REG_ADDR(AUX_ID_irq_pending, cpu->family)); + break; + case GDB_AUX_OTHER_REG_IRQ_PRIO: + regval = helper_lr(env, REG_ADDR(AUX_ID_irq_priority, cpu->family)); + break; + case GDB_AUX_OTHER_REG_BTA: + regval = helper_lr(env, REG_ADDR(AUX_ID_bta, cpu->family)); + break; + default: + assert(!"Unsupported other auxiliary register is being read."); + } + return GDB_GET_REG(mem_buf, regval); +} + + +static int +arc_aux_other_gdb_set_reg(CPUARCState *env, uint8_t *mem_buf, int regnum) +{ + ARCCPU *cpu = env_archcpu(env); + target_ulong regval = ldl_p(mem_buf); + switch (regnum) { + case GDB_AUX_OTHER_REG_TIMER_BUILD: + case GDB_AUX_OTHER_REG_IRQ_BUILD: + case GDB_AUX_OTHER_REG_MPY_BUILD: + case GDB_AUX_OTHER_REG_VECBASE_BUILD: + case GDB_AUX_OTHER_REG_ISA_CONFIG: + case GDB_AUX_OTHER_REG_MPU_BUILD: + case GDB_AUX_OTHER_REG_MPU_ECR: + case GDB_AUX_OTHER_REG_ICAUSE: + case GDB_AUX_OTHER_REG_IRQ_PRIO_PEND: + case GDB_AUX_OTHER_REG_IRQ_STATUS: + case GDB_AUX_OTHER_REG_IRQ_PENDING: + /* builds/configs/exceptions/irqs cannot be changed */ + break; + case GDB_AUX_OTHER_REG_TIMER_CNT0: + helper_sr(env, regval, REG_ADDR(AUX_ID_count0, cpu->family)); + break; + case GDB_AUX_OTHER_REG_TIMER_CTRL0: + helper_sr(env, regval, REG_ADDR(AUX_ID_control0, cpu->family)); + break; + case GDB_AUX_OTHER_REG_TIMER_LIM0: + helper_sr(env, regval, REG_ADDR(AUX_ID_limit0, cpu->family)); + break; + case GDB_AUX_OTHER_REG_TIMER_CNT1: + helper_sr(env, regval, REG_ADDR(AUX_ID_count1, cpu->family)); + break; + case GDB_AUX_OTHER_REG_TIMER_CTRL1: + helper_sr(env, regval, REG_ADDR(AUX_ID_control1, cpu->family)); + break; + case GDB_AUX_OTHER_REG_TIMER_LIM1: + helper_sr(env, regval, REG_ADDR(AUX_ID_limit1, cpu->family)); + break; + case GDB_AUX_OTHER_REG_PID: + helper_sr(env, regval, REG_ADDR(AUX_ID_pid, cpu->family)); + break; + case GDB_AUX_OTHER_REG_TLBPD0: + helper_sr(env, regval, REG_ADDR(AUX_ID_tlbpd0, cpu->family)); + break; + case GDB_AUX_OTHER_REG_TLBPD1: + helper_sr(env, regval, REG_ADDR(AUX_ID_tlbpd1, cpu->family)); + break; + case GDB_AUX_OTHER_REG_TLB_INDEX: + helper_sr(env, regval, REG_ADDR(AUX_ID_tlbindex, cpu->family)); + break; + case GDB_AUX_OTHER_REG_TLB_CMD: + helper_sr(env, regval, REG_ADDR(AUX_ID_tlbcommand, cpu->family)); + break; + /* MPU */ + case GDB_AUX_OTHER_REG_MPU_EN: + helper_sr(env, regval, REG_ADDR(AUX_ID_mpuen, cpu->family)); + break; + case GDB_AUX_OTHER_REG_MPU_BASE0 ... GDB_AUX_OTHER_REG_MPU_BASE15: { + const uint8_t index = regnum - GDB_AUX_OTHER_REG_MPU_BASE0; + helper_sr(env, regval, REG_ADDR(AUX_ID_mpurdb0 + index, cpu->family)); + break; + } + case GDB_AUX_OTHER_REG_MPU_PERM0 ... GDB_AUX_OTHER_REG_MPU_PERM15: { + const uint8_t index = regnum - GDB_AUX_OTHER_REG_MPU_PERM0; + helper_sr(env, regval, REG_ADDR(AUX_ID_mpurdp0 + index, cpu->family)); + break; + } + /* exceptions */ + case GDB_AUX_OTHER_REG_ERSTATUS: + helper_sr(env, regval, REG_ADDR(AUX_ID_erstatus, cpu->family)); + break; + case GDB_AUX_OTHER_REG_ERBTA: + helper_sr(env, regval, REG_ADDR(AUX_ID_erbta, cpu->family)); + break; + case GDB_AUX_OTHER_REG_ECR: + helper_sr(env, regval, REG_ADDR(AUX_ID_ecr, cpu->family)); + break; + case GDB_AUX_OTHER_REG_ERET: + helper_sr(env, regval, REG_ADDR(AUX_ID_eret, cpu->family)); + break; + case GDB_AUX_OTHER_REG_EFA: + helper_sr(env, regval, REG_ADDR(AUX_ID_efa, cpu->family)); + break; + /* interrupt */ + case GDB_AUX_OTHER_REG_IRQ_CTRL: + helper_sr(env, regval, REG_ADDR(AUX_ID_aux_irq_ctrl, cpu->family)); + break; + case GDB_AUX_OTHER_REG_IRQ_ACT: + helper_sr(env, regval, REG_ADDR(AUX_ID_aux_irq_act, cpu->family)); + break; + case GDB_AUX_OTHER_REG_IRQ_HINT: + helper_sr(env, regval, REG_ADDR(AUX_ID_aux_irq_hint, cpu->family)); + break; + case GDB_AUX_OTHER_REG_IRQ_SELECT: + helper_sr(env, regval, REG_ADDR(AUX_ID_irq_select, cpu->family)); + break; + case GDB_AUX_OTHER_REG_IRQ_ENABLE: + helper_sr(env, regval, REG_ADDR(AUX_ID_irq_enable, cpu->family)); + break; + case GDB_AUX_OTHER_REG_IRQ_TRIGGER: + helper_sr(env, regval, REG_ADDR(AUX_ID_irq_trigger, cpu->family)); + break; + case GDB_AUX_OTHER_REG_IRQ_PULSE: + helper_sr(env, regval, REG_ADDR(AUX_ID_irq_pulse_cancel, cpu->family)); + break; + case GDB_AUX_OTHER_REG_IRQ_PRIO: + helper_sr(env, regval, REG_ADDR(AUX_ID_irq_priority, cpu->family)); + break; + case GDB_AUX_OTHER_REG_BTA: + helper_sr(env, regval, REG_ADDR(AUX_ID_bta, cpu->family)); + break; + default: + assert(!"Unsupported other auxiliary register is being written."); + } + return 4; +} + +#define GDB_TARGET_MINIMAL_XML "arc-v2-aux.xml" +#define GDB_TARGET_AUX_XML "arc-v2-other.xml" + +void arc_cpu_register_gdb_regs_for_features(ARCCPU *cpu) +{ + CPUState *cs = CPU(cpu); + + gdb_register_coprocessor(cs, + arc_aux_minimal_gdb_get_reg, /* getter */ + arc_aux_minimal_gdb_set_reg, /* setter */ + GDB_AUX_MIN_REG_LAST, /* number of registers */ + GDB_TARGET_MINIMAL_XML, /* feature file */ + 0); /* position in g packet */ + + gdb_register_coprocessor(cs, + arc_aux_other_gdb_get_reg, + arc_aux_other_gdb_set_reg, + GDB_AUX_OTHER_REG_LAST, + GDB_TARGET_AUX_XML, + 0); +} + +/*-*-indent-tabs-mode:nil;tab-width:4;indent-line-function:'insert-tab'-*-*/ +/* vim: set ts=4 sw=4 et: */ diff --git a/target/arc/gdbstub.h b/target/arc/gdbstub.h new file mode 100644 index 0000000000..2ced52ee57 --- /dev/null +++ b/target/arc/gdbstub.h @@ -0,0 +1,157 @@ +/* + * QEMU ARC CPU + * + * Copyright (c) 2020 Synopsys Inc. + * Contributed by Cupertino Miranda + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2 or later, as published by the Free Software Foundation. + * + * This program is distributed in the hope 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 . + */ + +#ifndef ARC_GDBSTUB_H +#define ARC_GDBSTUB_H + +#define GDB_TARGET_STRING "arc:ARCv2" + +enum gdb_regs { + GDB_REG_0 = 0, + GDB_REG_1, + GDB_REG_2, + GDB_REG_3, + GDB_REG_4, + GDB_REG_5, + GDB_REG_6, + GDB_REG_7, + GDB_REG_8, + GDB_REG_9, + GDB_REG_10, + GDB_REG_11, + GDB_REG_12, + GDB_REG_13, + GDB_REG_14, + GDB_REG_15, + GDB_REG_16, + GDB_REG_17, + GDB_REG_18, + GDB_REG_19, + GDB_REG_20, + GDB_REG_21, + GDB_REG_22, + GDB_REG_23, + GDB_REG_24, + GDB_REG_25, + GDB_REG_26, /* GP */ + GDB_REG_27, /* FP */ + GDB_REG_28, /* SP */ + GDB_REG_29, /* ILINK */ + GDB_REG_30, /* R30 */ + GDB_REG_31, /* BLINK */ + GDB_REG_58, /* little_endian? ACCL : ACCH */ + GDB_REG_59, /* little_endian? ACCH : ACCL */ + GDB_REG_60, /* LP */ + GDB_REG_63, /* Immediate */ + GDB_REG_LAST +}; + +enum gdb_aux_min_regs { + GDB_AUX_MIN_REG_PC = 0, /* program counter */ + GDB_AUX_MIN_REG_LPS, /* loop body start */ + GDB_AUX_MIN_REG_LPE, /* loop body end */ + GDB_AUX_MIN_REG_STATUS, /* status flag */ + GDB_AUX_MIN_REG_LAST +}; + +enum gdb_aux_other_regs { + /* builds */ + GDB_AUX_OTHER_REG_TIMER_BUILD = 0, /* timer build */ + GDB_AUX_OTHER_REG_IRQ_BUILD, /* irq build */ + GDB_AUX_OTHER_REG_MPY_BUILD, /* multiply configuration */ + GDB_AUX_OTHER_REG_VECBASE_BUILD, /* vector base address config */ + GDB_AUX_OTHER_REG_ISA_CONFIG, /* isa config */ + /* timers */ + GDB_AUX_OTHER_REG_TIMER_CNT0, /* timer 0 counter */ + GDB_AUX_OTHER_REG_TIMER_CTRL0, /* timer 0 control */ + GDB_AUX_OTHER_REG_TIMER_LIM0, /* timer 0 limit */ + GDB_AUX_OTHER_REG_TIMER_CNT1, /* timer 1 counter */ + GDB_AUX_OTHER_REG_TIMER_CTRL1, /* timer 1 control */ + GDB_AUX_OTHER_REG_TIMER_LIM1, /* timer 1 limit */ + /* mpu */ + GDB_AUX_OTHER_REG_MPU_BUILD, /* MPU build */ + GDB_AUX_OTHER_REG_MPU_EN, /* MPU enable */ + GDB_AUX_OTHER_REG_MPU_ECR, /* MPU exception cause */ + GDB_AUX_OTHER_REG_MPU_BASE0, /* MPU base 0 */ + GDB_AUX_OTHER_REG_MPU_BASE1, /* MPU base 1 */ + GDB_AUX_OTHER_REG_MPU_BASE2, /* MPU base 2 */ + GDB_AUX_OTHER_REG_MPU_BASE3, /* MPU base 3 */ + GDB_AUX_OTHER_REG_MPU_BASE4, /* MPU base 4 */ + GDB_AUX_OTHER_REG_MPU_BASE5, /* MPU base 5 */ + GDB_AUX_OTHER_REG_MPU_BASE6, /* MPU base 6 */ + GDB_AUX_OTHER_REG_MPU_BASE7, /* MPU base 7 */ + GDB_AUX_OTHER_REG_MPU_BASE8, /* MPU base 8 */ + GDB_AUX_OTHER_REG_MPU_BASE9, /* MPU base 9 */ + GDB_AUX_OTHER_REG_MPU_BASE10, /* MPU base 10 */ + GDB_AUX_OTHER_REG_MPU_BASE11, /* MPU base 11 */ + GDB_AUX_OTHER_REG_MPU_BASE12, /* MPU base 12 */ + GDB_AUX_OTHER_REG_MPU_BASE13, /* MPU base 13 */ + GDB_AUX_OTHER_REG_MPU_BASE14, /* MPU base 14 */ + GDB_AUX_OTHER_REG_MPU_BASE15, /* MPU base 15 */ + GDB_AUX_OTHER_REG_MPU_PERM0, /* MPU permission 0 */ + GDB_AUX_OTHER_REG_MPU_PERM1, /* MPU permission 1 */ + GDB_AUX_OTHER_REG_MPU_PERM2, /* MPU permission 2 */ + GDB_AUX_OTHER_REG_MPU_PERM3, /* MPU permission 3 */ + GDB_AUX_OTHER_REG_MPU_PERM4, /* MPU permission 4 */ + GDB_AUX_OTHER_REG_MPU_PERM5, /* MPU permission 5 */ + GDB_AUX_OTHER_REG_MPU_PERM6, /* MPU permission 6 */ + GDB_AUX_OTHER_REG_MPU_PERM7, /* MPU permission 7 */ + GDB_AUX_OTHER_REG_MPU_PERM8, /* MPU permission 8 */ + GDB_AUX_OTHER_REG_MPU_PERM9, /* MPU permission 9 */ + GDB_AUX_OTHER_REG_MPU_PERM10, /* MPU permission 10 */ + GDB_AUX_OTHER_REG_MPU_PERM11, /* MPU permission 11 */ + GDB_AUX_OTHER_REG_MPU_PERM12, /* MPU permission 12 */ + GDB_AUX_OTHER_REG_MPU_PERM13, /* MPU permission 13 */ + GDB_AUX_OTHER_REG_MPU_PERM14, /* MPU permission 14 */ + GDB_AUX_OTHER_REG_MPU_PERM15, /* MPU permission 15 */ + /* excpetions */ + GDB_AUX_OTHER_REG_ERSTATUS, /* exception return status */ + GDB_AUX_OTHER_REG_ERBTA, /* exception return BTA */ + GDB_AUX_OTHER_REG_ECR, /* exception cause register */ + GDB_AUX_OTHER_REG_ERET, /* exception return address */ + GDB_AUX_OTHER_REG_EFA, /* exception fault address */ + /* irq */ + GDB_AUX_OTHER_REG_ICAUSE, /* interrupt cause */ + GDB_AUX_OTHER_REG_IRQ_CTRL, /* context saving control */ + GDB_AUX_OTHER_REG_IRQ_ACT, /* active */ + GDB_AUX_OTHER_REG_IRQ_PRIO_PEND, /* priority pending */ + GDB_AUX_OTHER_REG_IRQ_HINT, /* hint */ + GDB_AUX_OTHER_REG_IRQ_SELECT, /* select */ + GDB_AUX_OTHER_REG_IRQ_ENABLE, /* enable */ + GDB_AUX_OTHER_REG_IRQ_TRIGGER, /* trigger */ + GDB_AUX_OTHER_REG_IRQ_STATUS, /* status */ + GDB_AUX_OTHER_REG_IRQ_PULSE, /* pulse cancel */ + GDB_AUX_OTHER_REG_IRQ_PENDING, /* pending */ + GDB_AUX_OTHER_REG_IRQ_PRIO, /* priority */ + /* miscellaneous */ + GDB_AUX_OTHER_REG_BTA, /* branch target address */ + /* mmu */ + GDB_AUX_OTHER_REG_PID, /* process identity */ + GDB_AUX_OTHER_REG_TLBPD0, /* page descriptor 0 */ + GDB_AUX_OTHER_REG_TLBPD1, /* page descriptor 1 */ + GDB_AUX_OTHER_REG_TLB_INDEX, /* tlb index */ + GDB_AUX_OTHER_REG_TLB_CMD, /* tlb command */ + + GDB_AUX_OTHER_REG_LAST +}; + +/* add auxiliary registers to set of supported registers for GDB */ +void arc_cpu_register_gdb_regs_for_features(ARCCPU *cpu); + +#endif /* ARC_GDBSTUB_H */