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Mon, 26 Feb 2024 08:56:58 -0800 (PST) From: =?UTF-8?q?Alex=20Benn=C3=A9e?= To: qemu-devel@nongnu.org Cc: Nicholas Piggin , Liu Zhiwei , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , Peter Maydell , =?UTF-8?q?Alex=20Benn=C3=A9e?= , qemu-riscv@nongnu.org, Michael Rolnik , Song Gao , Alexandre Iooss , Marcel Apfelbaum , David Hildenbrand , Pierrick Bouvier , John Snow , Eduardo Habkost , Mahmoud Mandour , qemu-arm@nongnu.org, =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Paolo Bonzini , Cleber Rosa , qemu-ppc@nongnu.org, Richard Henderson , qemu-s390x@nongnu.org, Daniel Henrique Barboza , Thomas Huth , Yoshinori Sato , Yanan Wang , Brian Cain , Ilya Leoshkevich , Weiwei Li , "Edgar E. Iglesias" , Bin Meng , Laurent Vivier , Palmer Dabbelt , Daniel Henrique Barboza , Alistair Francis , Akihiko Odaki Subject: [PATCH v3 12/27] gdbstub: Add members to identify registers to GDBFeature Date: Mon, 26 Feb 2024 16:56:31 +0000 Message-Id: <20240226165646.425600-13-alex.bennee@linaro.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240226165646.425600-1-alex.bennee@linaro.org> References: <20240226165646.425600-1-alex.bennee@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::231; envelope-from=alex.bennee@linaro.org; helo=mail-lj1-x231.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, T_SCC_BODY_TEXT_LINE=-0.01 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1708966806052100003 From: Akihiko Odaki These members will be used to help plugins to identify registers. The added members in instances of GDBFeature dynamically generated by CPUs will be filled in later changes. Signed-off-by: Akihiko Odaki Message-Id: <20240103173349.398526-36-alex.bennee@linaro.org> Message-Id: <20231213-gdb-v17-10-777047380591@daynix.com> Signed-off-by: Alex Benn=C3=A9e --- include/exec/gdbstub.h | 3 +++ gdbstub/gdbstub.c | 12 +++++++++--- target/riscv/gdbstub.c | 4 +--- scripts/feature_to_c.py | 14 +++++++++++++- 4 files changed, 26 insertions(+), 7 deletions(-) diff --git a/include/exec/gdbstub.h b/include/exec/gdbstub.h index 82a8afa237f..da9ddfe54c5 100644 --- a/include/exec/gdbstub.h +++ b/include/exec/gdbstub.h @@ -13,12 +13,15 @@ typedef struct GDBFeature { const char *xmlname; const char *xml; + const char *name; + const char * const *regs; int num_regs; } GDBFeature; =20 typedef struct GDBFeatureBuilder { GDBFeature *feature; GPtrArray *xml; + GPtrArray *regs; int base_reg; } GDBFeatureBuilder; =20 diff --git a/gdbstub/gdbstub.c b/gdbstub/gdbstub.c index f766ee277a0..a55b5e6581a 100644 --- a/gdbstub/gdbstub.c +++ b/gdbstub/gdbstub.c @@ -419,9 +419,10 @@ void gdb_feature_builder_init(GDBFeatureBuilder *build= er, GDBFeature *feature, builder->feature =3D feature; builder->xml =3D g_ptr_array_new(); g_ptr_array_add(builder->xml, header); + builder->regs =3D g_ptr_array_new(); builder->base_reg =3D base_reg; feature->xmlname =3D xmlname; - feature->num_regs =3D 0; + feature->name =3D name; } =20 void gdb_feature_builder_append_tag(const GDBFeatureBuilder *builder, @@ -440,10 +441,12 @@ void gdb_feature_builder_append_reg(const GDBFeatureB= uilder *builder, const char *type, const char *group) { - if (builder->feature->num_regs < regnum) { - builder->feature->num_regs =3D regnum; + if (builder->regs->len <=3D regnum) { + g_ptr_array_set_size(builder->regs, regnum + 1); } =20 + builder->regs->pdata[regnum] =3D (gpointer *)name; + if (group) { gdb_feature_builder_append_tag( builder, @@ -469,6 +472,9 @@ void gdb_feature_builder_end(const GDBFeatureBuilder *b= uilder) } =20 g_ptr_array_free(builder->xml, TRUE); + + builder->feature->num_regs =3D builder->regs->len; + builder->feature->regs =3D (void *)g_ptr_array_free(builder->regs, FAL= SE); } =20 const GDBFeature *gdb_find_static_feature(const char *xmlname) diff --git a/target/riscv/gdbstub.c b/target/riscv/gdbstub.c index 546e8692d17..be7a02cd903 100644 --- a/target/riscv/gdbstub.c +++ b/target/riscv/gdbstub.c @@ -266,11 +266,9 @@ static GDBFeature *riscv_gen_dynamic_csr_feature(CPUSt= ate *cs, int base_reg) } predicate =3D csr_ops[i].predicate; if (predicate && (predicate(env, i) =3D=3D RISCV_EXCP_NONE)) { - g_autofree char *dynamic_name =3D NULL; name =3D csr_ops[i].name; if (!name) { - dynamic_name =3D g_strdup_printf("csr%03x", i); - name =3D dynamic_name; + name =3D g_strdup_printf("csr%03x", i); } =20 gdb_feature_builder_append_reg(&builder, name, bitsize, i, diff --git a/scripts/feature_to_c.py b/scripts/feature_to_c.py index e04d6b2df7f..807af0e685c 100644 --- a/scripts/feature_to_c.py +++ b/scripts/feature_to_c.py @@ -50,7 +50,9 @@ def writeliteral(indent, bytes): sys.stderr.write(f'unexpected start tag: {element.tag}\n') exit(1) =20 + feature_name =3D element.attrib['name'] regnum =3D 0 + regnames =3D [] regnums =3D [] tags =3D ['feature'] for event, element in events: @@ -67,6 +69,7 @@ def writeliteral(indent, bytes): if 'regnum' in element.attrib: regnum =3D int(element.attrib['regnum']) =20 + regnames.append(element.attrib['name']) regnums.append(regnum) regnum +=3D 1 =20 @@ -85,6 +88,15 @@ def writeliteral(indent, bytes): writeliteral(8, bytes(os.path.basename(input), 'utf-8')) sys.stdout.write(',\n') writeliteral(8, read) - sys.stdout.write(f',\n {num_regs},\n }},\n') + sys.stdout.write(',\n') + writeliteral(8, bytes(feature_name, 'utf-8')) + sys.stdout.write(',\n (const char * const []) {\n') + + for index, regname in enumerate(regnames): + sys.stdout.write(f' [{regnums[index] - base_reg}] =3D\n= ') + writeliteral(16, bytes(regname, 'utf-8')) + sys.stdout.write(',\n') + + sys.stdout.write(f' }},\n {num_regs},\n }},\n') =20 sys.stdout.write(' { NULL }\n};\n') --=20 2.39.2