From patchwork Thu Oct 12 05:48:53 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Akihiko Odaki X-Patchwork-Id: 1847222 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=daynix-com.20230601.gappssmtp.com header.i=@daynix-com.20230601.gappssmtp.com header.a=rsa-sha256 header.s=20230601 header.b=2RCQ4mTv; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=patchwork.ozlabs.org) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4S5f04704Dz23jX for ; Thu, 12 Oct 2023 16:51:32 +1100 (AEDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qqoac-0003OJ-MD; Thu, 12 Oct 2023 01:50:31 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qqoaZ-0003Ez-Lf for qemu-devel@nongnu.org; Thu, 12 Oct 2023 01:50:27 -0400 Received: from mail-pl1-x633.google.com ([2607:f8b0:4864:20::633]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1qqoaX-0007RP-Uc for qemu-devel@nongnu.org; Thu, 12 Oct 2023 01:50:27 -0400 Received: by mail-pl1-x633.google.com with SMTP id d9443c01a7336-1c9bca1d96cso5165075ad.3 for ; Wed, 11 Oct 2023 22:50:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=daynix-com.20230601.gappssmtp.com; s=20230601; t=1697089824; x=1697694624; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=lWuKUcnNqKUWxMqg1EexrTswIw3aaRaQhxy6IrnDyPU=; b=2RCQ4mTvDHfJznJOTdIicAgIPgJSwv+7a6O+hk68N4Btqqz8xjmT9oOE4kld6OQYgR fGG57sysphXsXG4sesVUTxSQq4p9kSeTshhRSyqzy77/OSO/U0X8c4TJ2jOUZEZBiDHn 3+UdaZtbfKONVCgBq3zW1yKH+Bo8Y08i0yRCSMh53DR0Pzywz02nR1K+KbmEunfiu5ER mx8s65p1il4LeV+9wvQpzfRtpvL0yqgnzVLxh2PdVvU7+rUImSzfz5LEWkxgHFQvUCwz lTtbTvdcFCqnpQOUSxOrUif1I+l9yQ/5D5kC5F+HMGY7u0q5Z9hqbHLyOLmrRWTwfuRE gwMQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1697089824; x=1697694624; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=lWuKUcnNqKUWxMqg1EexrTswIw3aaRaQhxy6IrnDyPU=; b=QzFGKeDfFdVXImdyX//AZZQ2j86F/3pvh2V/niD1jUE1VmNoM5ksKQUUSJ/c9p+apy g5dPTEmsfsXdfzfw3nUhrWhWHUOtqtooIGjv+phEJSuIw9G5p8poqzWH9pIw0SU9SrjE BjVkc11icXu9PgqHQ0ccqJjREmaht9CCGqRwub1xoO6i1DtweNRBI8zzdfMqhDVHwcU1 VKdMyLlwZ8ck6PA0bNaFFigCPksUk7aWzUJBHYHOqGIED43I/tvQ6JlFQkfLgeuIJo4U dA+dD2hoatsUwuuGsmPd6Gh0UWKkR3Sb4aIW+9pV3O1+QvX0ESWoQPBNFCJLwEZeVIRX uPew== X-Gm-Message-State: AOJu0Yw1OKeWltinGhCBHFlMRebbjE7Kvj2HbC/RbGr7zvRnOHub3967 7C6quSZjRVIIZn7sDudHdTgvhg== X-Google-Smtp-Source: AGHT+IEYT8uiajwtcYhIsk7QiNfcUqXDghwoM5cyTmoqhhmPD4c7J+tBXYAbWNFOng8FjbSwYT44Lg== X-Received: by 2002:a17:902:da8c:b0:1c9:abca:79ec with SMTP id j12-20020a170902da8c00b001c9abca79ecmr8986529plx.48.1697089824571; Wed, 11 Oct 2023 22:50:24 -0700 (PDT) Received: from localhost ([157.82.206.10]) by smtp.gmail.com with UTF8SMTPSA id b11-20020a170902d50b00b001c5eb2c4d8csm940240plg.160.2023.10.11.22.50.22 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 11 Oct 2023 22:50:24 -0700 (PDT) From: Akihiko Odaki To: Cc: =?utf-8?q?Alex_Benn=C3=A9e?= , Mikhail Tyutin , Aleksandr Anenkov , qemu-devel@nongnu.org, =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Akihiko Odaki Subject: [PATCH v10 14/18] gdbstub: Expose functions to read registers Date: Thu, 12 Oct 2023 14:48:53 +0900 Message-ID: <20231012054902.38447-15-akihiko.odaki@daynix.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231012054902.38447-1-akihiko.odaki@daynix.com> References: <20231012054902.38447-1-akihiko.odaki@daynix.com> MIME-Version: 1.0 Received-SPF: none client-ip=2607:f8b0:4864:20::633; envelope-from=akihiko.odaki@daynix.com; helo=mail-pl1-x633.google.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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NONE=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: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org gdb_find_feature() and gdb_find_feature_register() find registers. gdb_read_register() actually reads registers. Signed-off-by: Akihiko Odaki --- include/exec/gdbstub.h | 5 +++++ gdbstub/gdbstub.c | 31 ++++++++++++++++++++++++++++++- 2 files changed, 35 insertions(+), 1 deletion(-) diff --git a/include/exec/gdbstub.h b/include/exec/gdbstub.h index 229fa382bc..b85f700c5f 100644 --- a/include/exec/gdbstub.h +++ b/include/exec/gdbstub.h @@ -71,6 +71,11 @@ void gdb_feature_builder_end(const GDBFeatureBuilder *builder); const GDBFeature *gdb_find_static_feature(const char *xmlname); +int gdb_find_feature(CPUState *cpu, const char *name); +int gdb_find_feature_register(CPUState *cpu, int feature, const char *name); + +int gdb_read_register(CPUState *cpu, GByteArray *buf, int reg); + void gdb_set_stop_cpu(CPUState *cpu); /* in gdbstub-xml.c, generated by scripts/feature_to_c.py */ diff --git a/gdbstub/gdbstub.c b/gdbstub/gdbstub.c index 987af2298c..a3fc65ec86 100644 --- a/gdbstub/gdbstub.c +++ b/gdbstub/gdbstub.c @@ -484,7 +484,36 @@ const GDBFeature *gdb_find_static_feature(const char *xmlname) g_assert_not_reached(); } -static int gdb_read_register(CPUState *cpu, GByteArray *buf, int reg) +int gdb_find_feature(CPUState *cpu, const char *name) +{ + GDBRegisterState *r; + + for (guint i = 0; i < cpu->gdb_regs->len; i++) { + r = &g_array_index(cpu->gdb_regs, GDBRegisterState, i); + if (!strcmp(name, r->feature->name)) { + return i; + } + } + + return -1; +} + +int gdb_find_feature_register(CPUState *cpu, int feature, const char *name) +{ + GDBRegisterState *r; + + r = &g_array_index(cpu->gdb_regs, GDBRegisterState, feature); + + for (int i = 0; i < r->feature->num_regs; i++) { + if (r->feature->regs[i] && !strcmp(name, r->feature->regs[i])) { + return r->base_reg + i; + } + } + + return -1; +} + +int gdb_read_register(CPUState *cpu, GByteArray *buf, int reg) { CPUClass *cc = CPU_GET_CLASS(cpu); GDBRegisterState *r;