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([71.212.149.95]) by smtp.gmail.com with ESMTPSA id k15-20020aa7998f000000b00688965c5227sm1944975pfh.120.2023.10.20.13.43.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 20 Oct 2023 13:43:57 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: deller@gmx.de Subject: [PATCH v2 28/65] target/hppa: Drop attempted gdbstub support for hppa64 Date: Fri, 20 Oct 2023 13:42:54 -0700 Message-Id: <20231020204331.139847-29-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231020204331.139847-1-richard.henderson@linaro.org> References: <20231020204331.139847-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::435; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x435.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, 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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org There is no support for hppa64 in gdb. Any attempt to provide the data for the larger hppa64 registers results in an error from gdb. Mask CR_SAR writes to the width of the register: 5 or 6 bits. Signed-off-by: Richard Henderson --- target/hppa/gdbstub.c | 32 +++++++++++++------------------- 1 file changed, 13 insertions(+), 19 deletions(-) diff --git a/target/hppa/gdbstub.c b/target/hppa/gdbstub.c index 48a514384f..4a965b38d7 100644 --- a/target/hppa/gdbstub.c +++ b/target/hppa/gdbstub.c @@ -21,11 +21,16 @@ #include "cpu.h" #include "gdbstub/helpers.h" +/* + * GDB 15 only supports PA1.0 via the remote protocol, and ignores + * any provided xml. Which means that any attempt to provide more + * data results in "Remote 'g' packet reply is too long". + */ + int hppa_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n) { - HPPACPU *cpu = HPPA_CPU(cs); - CPUHPPAState *env = &cpu->env; - target_ureg val; + CPUHPPAState *env = cpu_env(cs); + uint32_t val; switch (n) { case 0: @@ -139,24 +144,13 @@ int hppa_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n) break; } - if (TARGET_REGISTER_BITS == 64) { - return gdb_get_reg64(mem_buf, val); - } else { - return gdb_get_reg32(mem_buf, val); - } + return gdb_get_reg32(mem_buf, val); } int hppa_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n) { - HPPACPU *cpu = HPPA_CPU(cs); - CPUHPPAState *env = &cpu->env; - target_ureg val; - - if (TARGET_REGISTER_BITS == 64) { - val = ldq_p(mem_buf); - } else { - val = ldl_p(mem_buf); - } + CPUHPPAState *env = cpu_env(cs); + uint32_t val = ldl_p(mem_buf); switch (n) { case 0: @@ -166,7 +160,7 @@ int hppa_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n) env->gr[n] = val; break; case 32: - env->cr[CR_SAR] = val; + env->cr[CR_SAR] = val & (hppa_is_pa20(env) ? 63 : 31); break; case 33: env->iaoq_f = val; @@ -278,5 +272,5 @@ int hppa_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n) } break; } - return sizeof(target_ureg); + return 4; }