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GET /api/patches/1882151/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 1882151,
    "url": "http://patchwork.ozlabs.org/api/patches/1882151/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20240103173349.398526-36-alex.bennee@linaro.org/",
    "project": {
        "id": 14,
        "url": "http://patchwork.ozlabs.org/api/projects/14/?format=api",
        "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": "",
        "list_archive_url": "",
        "list_archive_url_format": "",
        "commit_url_format": ""
    },
    "msgid": "<20240103173349.398526-36-alex.bennee@linaro.org>",
    "list_archive_url": null,
    "date": "2024-01-03T17:33:41",
    "name": "[v2,35/43] gdbstub: Add members to identify registers to GDBFeature",
    "commit_ref": null,
    "pull_url": null,
    "state": "new",
    "archived": false,
    "hash": "7cadc40cc7bd23488d945c688b2101688ccc3771",
    "submitter": {
        "id": 39532,
        "url": "http://patchwork.ozlabs.org/api/people/39532/?format=api",
        "name": "Alex Bennée",
        "email": "alex.bennee@linaro.org"
    },
    "delegate": null,
    "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20240103173349.398526-36-alex.bennee@linaro.org/mbox/",
    "series": [
        {
            "id": 388742,
            "url": "http://patchwork.ozlabs.org/api/series/388742/?format=api",
            "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=388742",
            "date": "2024-01-03T17:33:08",
            "name": "testing and plugin updates for 9.0 (pre-PR)",
            "version": 2,
            "mbox": "http://patchwork.ozlabs.org/series/388742/mbox/"
        }
    ],
    "comments": "http://patchwork.ozlabs.org/api/patches/1882151/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/1882151/checks/",
    "tags": {},
    "related": [],
    "headers": {
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        "From": "=?utf-8?q?Alex_Benn=C3=A9e?= <alex.bennee@linaro.org>",
        "To": "qemu-devel@nongnu.org",
        "Cc": "qemu-s390x@nongnu.org, qemu-ppc@nongnu.org,\n Richard Henderson <richard.henderson@linaro.org>,\n Song Gao <gaosong@loongson.cn>,\n =?utf-8?q?Marc-Andr=C3=A9_Lureau?= <marcandre.lureau@redhat.com>,\n David Hildenbrand <david@redhat.com>, Aurelien Jarno <aurelien@aurel32.net>,\n Yoshinori Sato <ysato@users.sourceforge.jp>,\n Yanan Wang <wangyanan55@huawei.com>, Bin Meng <bin.meng@windriver.com>,\n Laurent Vivier <lvivier@redhat.com>, Michael Rolnik <mrolnik@gmail.com>,\n Alexandre Iooss <erdnaxe@crans.org>, David Woodhouse <dwmw2@infradead.org>,\n Laurent Vivier <laurent@vivier.eu>, Paolo Bonzini <pbonzini@redhat.com>,\n Brian Cain <bcain@quicinc.com>,\n Daniel Henrique Barboza <danielhb413@gmail.com>,\n Beraldo Leal <bleal@redhat.com>, Paul Durrant <paul@xen.org>,\n Mahmoud Mandour <ma.mandourr@gmail.com>, Thomas Huth <thuth@redhat.com>,\n Liu Zhiwei <zhiwei_liu@linux.alibaba.com>, Cleber Rosa <crosa@redhat.com>,\n kvm@vger.kernel.org, Peter Maydell <peter.maydell@linaro.org>,\n Wainer dos Santos Moschetta <wainersm@redhat.com>, =?utf-8?q?Alex_Benn?=\n\t=?utf-8?q?=C3=A9e?= <alex.bennee@linaro.org>, qemu-arm@nongnu.org,\n Weiwei Li <liwei1518@gmail.com>,\n =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= <philmd@linaro.org>,\n John Snow <jsnow@redhat.com>,\n Daniel Henrique Barboza <dbarboza@ventanamicro.com>,\n Nicholas Piggin <npiggin@gmail.com>, Palmer Dabbelt <palmer@dabbelt.com>,\n Marcel Apfelbaum <marcel.apfelbaum@gmail.com>,\n Ilya Leoshkevich <iii@linux.ibm.com>,\n =?utf-8?q?C=C3=A9dric_Le_Goater?= <clg@kaod.org>,\n \"Edgar E. Iglesias\" <edgar.iglesias@gmail.com>,\n Eduardo Habkost <eduardo@habkost.net>,\n Pierrick Bouvier <pierrick.bouvier@linaro.org>, qemu-riscv@nongnu.org,\n Alistair Francis <alistair.francis@wdc.com>,\n Akihiko Odaki <akihiko.odaki@daynix.com>",
        "Subject": "[PATCH v2 35/43] gdbstub: Add members to identify registers to\n GDBFeature",
        "Date": "Wed,  3 Jan 2024 17:33:41 +0000",
        "Message-Id": "<20240103173349.398526-36-alex.bennee@linaro.org>",
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        "In-Reply-To": "<20240103173349.398526-1-alex.bennee@linaro.org>",
        "References": "<20240103173349.398526-1-alex.bennee@linaro.org>",
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        "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org",
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    },
    "content": "From: Akihiko Odaki <akihiko.odaki@daynix.com>\n\nThese members will be used to help plugins to identify registers.\nThe added members in instances of GDBFeature dynamically generated by\nCPUs will be filled in later changes.\n\nSigned-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>\nMessage-Id: <20231213-gdb-v17-10-777047380591@daynix.com>\nSigned-off-by: Alex Bennée <alex.bennee@linaro.org>\n---\n include/exec/gdbstub.h  |  3 +++\n gdbstub/gdbstub.c       | 12 +++++++++---\n target/riscv/gdbstub.c  |  4 +---\n scripts/feature_to_c.py | 14 +++++++++++++-\n 4 files changed, 26 insertions(+), 7 deletions(-)",
    "diff": "diff --git a/include/exec/gdbstub.h b/include/exec/gdbstub.h\nindex 82a8afa237f..da9ddfe54c5 100644\n--- a/include/exec/gdbstub.h\n+++ b/include/exec/gdbstub.h\n@@ -13,12 +13,15 @@\n typedef struct GDBFeature {\n     const char *xmlname;\n     const char *xml;\n+    const char *name;\n+    const char * const *regs;\n     int num_regs;\n } GDBFeature;\n \n typedef struct GDBFeatureBuilder {\n     GDBFeature *feature;\n     GPtrArray *xml;\n+    GPtrArray *regs;\n     int base_reg;\n } GDBFeatureBuilder;\n \ndiff --git a/gdbstub/gdbstub.c b/gdbstub/gdbstub.c\nindex 801eba9a0b0..420ab2a3766 100644\n--- a/gdbstub/gdbstub.c\n+++ b/gdbstub/gdbstub.c\n@@ -419,9 +419,10 @@ void gdb_feature_builder_init(GDBFeatureBuilder *builder, GDBFeature *feature,\n     builder->feature = feature;\n     builder->xml = g_ptr_array_new();\n     g_ptr_array_add(builder->xml, header);\n+    builder->regs = g_ptr_array_new();\n     builder->base_reg = base_reg;\n     feature->xmlname = xmlname;\n-    feature->num_regs = 0;\n+    feature->name = name;\n }\n \n void gdb_feature_builder_append_tag(const GDBFeatureBuilder *builder,\n@@ -440,10 +441,12 @@ void gdb_feature_builder_append_reg(const GDBFeatureBuilder *builder,\n                                     const char *type,\n                                     const char *group)\n {\n-    if (builder->feature->num_regs < regnum) {\n-        builder->feature->num_regs = regnum;\n+    if (builder->regs->len <= regnum) {\n+        g_ptr_array_set_size(builder->regs, regnum + 1);\n     }\n \n+    builder->regs->pdata[regnum] = (gpointer *)name;\n+\n     if (group) {\n         gdb_feature_builder_append_tag(\n             builder,\n@@ -469,6 +472,9 @@ void gdb_feature_builder_end(const GDBFeatureBuilder *builder)\n     }\n \n     g_ptr_array_free(builder->xml, TRUE);\n+\n+    builder->feature->num_regs = builder->regs->len;\n+    builder->feature->regs = (void *)g_ptr_array_free(builder->regs, FALSE);\n }\n \n const GDBFeature *gdb_find_static_feature(const char *xmlname)\ndiff --git a/target/riscv/gdbstub.c b/target/riscv/gdbstub.c\nindex 68d0fdc1fd6..d9b52ffd09b 100644\n--- a/target/riscv/gdbstub.c\n+++ b/target/riscv/gdbstub.c\n@@ -266,11 +266,9 @@ static GDBFeature *riscv_gen_dynamic_csr_feature(CPUState *cs, int base_reg)\n         }\n         predicate = csr_ops[i].predicate;\n         if (predicate && (predicate(env, i) == RISCV_EXCP_NONE)) {\n-            g_autofree char *dynamic_name = NULL;\n             name = csr_ops[i].name;\n             if (!name) {\n-                dynamic_name = g_strdup_printf(\"csr%03x\", i);\n-                name = dynamic_name;\n+                name = g_strdup_printf(\"csr%03x\", i);\n             }\n \n             gdb_feature_builder_append_reg(&builder, name, bitsize, i,\ndiff --git a/scripts/feature_to_c.py b/scripts/feature_to_c.py\nindex e04d6b2df7f..807af0e685c 100644\n--- a/scripts/feature_to_c.py\n+++ b/scripts/feature_to_c.py\n@@ -50,7 +50,9 @@ def writeliteral(indent, bytes):\n         sys.stderr.write(f'unexpected start tag: {element.tag}\\n')\n         exit(1)\n \n+    feature_name = element.attrib['name']\n     regnum = 0\n+    regnames = []\n     regnums = []\n     tags = ['feature']\n     for event, element in events:\n@@ -67,6 +69,7 @@ def writeliteral(indent, bytes):\n                 if 'regnum' in element.attrib:\n                     regnum = int(element.attrib['regnum'])\n \n+                regnames.append(element.attrib['name'])\n                 regnums.append(regnum)\n                 regnum += 1\n \n@@ -85,6 +88,15 @@ def writeliteral(indent, bytes):\n     writeliteral(8, bytes(os.path.basename(input), 'utf-8'))\n     sys.stdout.write(',\\n')\n     writeliteral(8, read)\n-    sys.stdout.write(f',\\n        {num_regs},\\n    }},\\n')\n+    sys.stdout.write(',\\n')\n+    writeliteral(8, bytes(feature_name, 'utf-8'))\n+    sys.stdout.write(',\\n        (const char * const []) {\\n')\n+\n+    for index, regname in enumerate(regnames):\n+        sys.stdout.write(f'            [{regnums[index] - base_reg}] =\\n')\n+        writeliteral(16, bytes(regname, 'utf-8'))\n+        sys.stdout.write(',\\n')\n+\n+    sys.stdout.write(f'        }},\\n        {num_regs},\\n    }},\\n')\n \n sys.stdout.write('    { NULL }\\n};\\n')\n",
    "prefixes": [
        "v2",
        "35/43"
    ]
}