{"id":2198296,"url":"http://patchwork.ozlabs.org/api/1.0/patches/2198296/?format=json","project":{"id":14,"url":"http://patchwork.ozlabs.org/api/1.0/projects/14/?format=json","name":"QEMU Development","link_name":"qemu-devel","list_id":"qemu-devel.nongnu.org","list_email":"qemu-devel@nongnu.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20260219191955.83815-6-philmd@linaro.org>","date":"2026-02-19T19:19:07","name":"[v2,05/50] target/alpha: Document gdbstub register indexes","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"54cd00a3efc6f1d6506055f2a0cfbdb1ee9a9cf4","submitter":{"id":85046,"url":"http://patchwork.ozlabs.org/api/1.0/people/85046/?format=json","name":"Philippe Mathieu-Daudé","email":"philmd@linaro.org"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260219191955.83815-6-philmd@linaro.org/mbox/","series":[{"id":492715,"url":"http://patchwork.ozlabs.org/api/1.0/series/492715/?format=json","date":"2026-02-19T19:19:03","name":"gdbstub: Build once on various targets (single-binary)","version":2,"mbox":"http://patchwork.ozlabs.org/series/492715/mbox/"}],"check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2198296/checks/","tags":{},"headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=linaro.org header.i=@linaro.org header.a=rsa-sha256\n header.s=google header.b=obrEx447;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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charset=UTF-8","Content-Transfer-Encoding":"8bit","Received-SPF":"pass client-ip=2a00:1450:4864:20::444;\n envelope-from=philmd@linaro.org; helo=mail-wr1-x444.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,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001,\n 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":"qemu development ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org"},"content":"Follow GDB XML comments. Re-order switch cases for clarity.\n\nSigned-off-by: Philippe Mathieu-Daudé \n---\n target/alpha/gdbstub.c | 25 ++++++++++++-------------\n 1 file changed, 12 insertions(+), 13 deletions(-)","diff":"diff --git a/target/alpha/gdbstub.c b/target/alpha/gdbstub.c\nindex a7110e8d1eb..7722eb46806 100644\n--- a/target/alpha/gdbstub.c\n+++ b/target/alpha/gdbstub.c\n@@ -31,6 +31,9 @@ int alpha_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n)\n case 0 ... 30:\n val = cpu_alpha_load_gr(env, n);\n break;\n+ case 31: /* zero register */\n+ val = 0;\n+ break;\n case 32 ... 62:\n d.d = env->fir[n - 32];\n val = d.ll;\n@@ -41,15 +44,12 @@ int alpha_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n)\n case 64:\n val = env->pc;\n break;\n- case 66:\n- val = env->unique;\n- break;\n- case 31:\n- case 65:\n- /* 31 really is the zero register; 65 is unassigned in the\n- gdb protocol, but is still required to occupy 8 bytes. */\n+ case 65: /* former Virtual Register (reserved as unassigned) */\n val = 0;\n break;\n+ case 66: /* PALcode Memory Slot */\n+ val = env->unique;\n+ break;\n default:\n return 0;\n }\n@@ -66,6 +66,8 @@ int alpha_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)\n case 0 ... 30:\n cpu_alpha_store_gr(env, n, tmp);\n break;\n+ case 31: /* zero register */\n+ break;\n case 32 ... 62:\n d.ll = tmp;\n env->fir[n - 32] = d.d;\n@@ -76,13 +78,10 @@ int alpha_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)\n case 64:\n env->pc = tmp;\n break;\n- case 66:\n- env->unique = tmp;\n+ case 65: /* former Virtual Register (reserved as unassigned) */\n break;\n- case 31:\n- case 65:\n- /* 31 really is the zero register; 65 is unassigned in the\n- gdb protocol, but is still required to occupy 8 bytes. */\n+ case 66: /* PALcode Memory Slot */\n+ env->unique = tmp;\n break;\n default:\n return 0;\n","prefixes":["v2","05/50"]}