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Thu, 19 Oct 2023 03:28:15 -0700 (PDT) Received: from localhost ([2400:4050:a840:1e00:78d2:b862:10a7:d486]) by smtp.gmail.com with UTF8SMTPSA id w12-20020a170902d3cc00b001c61e628e9dsm1588076plb.77.2023.10.19.03.28.14 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 19 Oct 2023 03:28:15 -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 v14 14/18] gdbstub: Expose functions to read registers Date: Thu, 19 Oct 2023 19:26:49 +0900 Message-ID: <20231019102657.129512-15-akihiko.odaki@daynix.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231019102657.129512-1-akihiko.odaki@daynix.com> References: <20231019102657.129512-1-akihiko.odaki@daynix.com> MIME-Version: 1.0 Received-SPF: none client-ip=2607:f8b0:4864:20::631; envelope-from=akihiko.odaki@daynix.com; helo=mail-pl1-x631.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 346151d0f2..308b5c266a 100644 --- a/include/exec/gdbstub.h +++ b/include/exec/gdbstub.h @@ -74,6 +74,11 @@ 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 fade023559..0b64b93960 100644 --- a/gdbstub/gdbstub.c +++ b/gdbstub/gdbstub.c @@ -490,7 +490,36 @@ 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;