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Fri, 08 Aug 2025 04:30:30 -0700 (PDT) From: Manos Pitsidianakis Date: Fri, 08 Aug 2025 14:30:14 +0300 Subject: [PATCH 2/4] gdbstub/aarch64: add NZCV register MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250808-gdbstub-aarch64-pstate-regs-v1-2-14ba70be1b3d@linaro.org> References: <20250808-gdbstub-aarch64-pstate-regs-v1-0-14ba70be1b3d@linaro.org> In-Reply-To: <20250808-gdbstub-aarch64-pstate-regs-v1-0-14ba70be1b3d@linaro.org> To: qemu-devel@nongnu.org Cc: =?utf-8?q?Alex_Benn=C3=A9e?= , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Peter Maydell , Pierrick Bouvier , Gustavo Romero , Richard Henderson , qemu-arm@nongnu.org, Manos Pitsidianakis X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=2101; i=manos.pitsidianakis@linaro.org; h=from:subject:message-id; bh=M+o0NxtbVX/WeQLjyp8sVxOp2zp/MN1L8BDmz068olY=; b=LS0tLS1CRUdJTiBQR1AgTUVTU0FHRS0tLS0tCgpvd0VCYlFLUy9aQU5Bd0FLQVhjcHgzQi9mZ 25RQWNzbVlnQm9sZC9SYkFDZy9qRVFKMTl5WTVoc0VINmVwV1ZWClBiMkZidm1heG5hSEtyUnBN T1NKQWpNRUFBRUtBQjBXSVFUTVhCdE9SS0JXODRkd0hSQjNLY2R3ZjM0SjBBVUMKYUpYZjBRQUt DUkIzS2Nkd2YzNEowSVB2RC85VHVUSGRLZ2FneFc4czJzaFRaSUlBZE5iTnZrZHM3YVZiM24xbw p6a0Z0VXhhcVBrWnBwR0dUaXIySlVQcnZRSk8ybmNaM0JMZWJENEFHUlp1MmFuQzF4VGhlNGxXa XRoQ3hNbEtsCnNnbkhZaEtOOWpjalNTclVLWi8wMlVTRWlqdzdId0d1b3ZNV1oxS0Y5UTVrK0lE eDZDU0RyVkdRL1pNLzVMakoKeGMvaXF6WDU2RHJhenhVaE41YUdvWkJpQjNzdnZJWkhEL2RhTFR OWXhKSmEvL21TR01CT2lUS2piSExYZXQyMgp1RVNhUXY0Q3ptTFdLNEIrQnk3TktObjVuZEtXQ2 5Ua3VrWElZZFZ5L1NmQVROamVjWVpRUHN1dlRNVStwM2xsCkpvVytrWjdvemUrTW1xRWtHSTQyM DFkWk5DQ3RWZjlJTVBiaFFsVHMrUmFpSndha2VHOEgxV2dDTHNYR29ZWHoKY3YyeWZzaFhONkox bitlbW5maWRwdVJ0bnhMc3U0RXU3dTlGZmxjM1Zwd1JZUzRmUm4rS0NDTFZub0Z6aXlnaAphQlF nRG1Kd29LeldJTm1aLyt4TEFwNjVETG5kYnBIU09paG1xU0JqNUMzNnM0cXNoVW1nWHVKTkFuU0 YvQzZ1CklGWmcrd2pqTEI0cWRzVEUvbzJGVzl1ZytpQVl2ekdxaEpwckVEMTU3Um9Fa2JMQTFtS 1RKOVZ2QlB2b2lneUgKZ1VsY3M5aFJCVzA4WEJlKzBpZWY4S3l6bVBnWURFdTRPOTkyTVhUYW1y MmFhOUpYMFlCWUJrR213U0hYQ3hvTgp3T1o3V05aRDMzWjJBYTUvYTVSRDZiN3ZROEVQRldFL0c 0RlRLckN6dFBFaXB3Mm51NWZUNUEwMURBWXR0dnBBCkgrZFk3QT09Cj1WMUxPCi0tLS0tRU5EIF BHUCBNRVNTQUdFLS0tLS0K X-Developer-Key: i=manos.pitsidianakis@linaro.org; a=openpgp; fpr=7C721DF9DB3CC7182311C0BF68BC211D47B421E1 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::429; envelope-from=manos.pitsidianakis@linaro.org; helo=mail-wr1-x429.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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1754652732724116600 Signed-off-by: Manos Pitsidianakis --- gdb-xml/aarch64-core.xml | 14 +++++++++++++- target/arm/gdbstub64.c | 8 ++++++++ 2 files changed, 21 insertions(+), 1 deletion(-) diff --git a/gdb-xml/aarch64-core.xml b/gdb-xml/aarch64-core.xml index 19ad743dc5607b4021fb795bfb9b8e9cf0adef68..2b74b87f908f792c24f76f212e4= f7eaf335ddbc2 100644 --- a/gdb-xml/aarch64-core.xml +++ b/gdb-xml/aarch64-core.xml @@ -95,5 +95,17 @@ - + + + + + + + + + + + + + diff --git a/target/arm/gdbstub64.c b/target/arm/gdbstub64.c index 16b564e1a970cb5e854a705619f71ffc61545a73..dd3c6222a577efa03753cf07371= afdedeefdb771 100644 --- a/target/arm/gdbstub64.c +++ b/target/arm/gdbstub64.c @@ -51,6 +51,9 @@ int aarch64_cpu_gdb_read_register(CPUState *cs, GByteArra= y *mem_buf, int n) case 34: /* CurrentEL */ return gdb_get_reg64(mem_buf, env->pstate & PSTATE_EL); + case 35: + /* NZCV */ + return gdb_get_reg64(mem_buf, pstate_read(env) & PSTATE_NZCV); } /* Unknown register. */ return 0; @@ -83,6 +86,11 @@ int aarch64_cpu_gdb_write_register(CPUState *cs, uint8_t= *mem_buf, int n) case 34: /* CurrentEL */ return 0; + case 35: + /* NZCV */ + tmp =3D (pstate_read(env) & ~PSTATE_NZCV) | (tmp & PSTATE_NZCV); + pstate_write(env, tmp); + return 8; } /* Unknown register. */ return 0; --=20 2.47.2