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Tue, 03 Feb 2026 03:52:09 -0800 (PST) From: =?UTF-8?q?Alex=20Benn=C3=A9e?= To: qemu-devel@nongnu.org Cc: John Snow , Pierrick Bouvier , qemu-arm@nongnu.org, Markus Armbruster , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , David Gibson , Nicholas Piggin , Wainer dos Santos Moschetta , qemu-ppc@nongnu.org, =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , =?UTF-8?q?Alex=20Benn=C3=A9e?= , Peter Maydell , Cleber Rosa , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , "Edgar E. Iglesias" , qemu-s390x@nongnu.org, Thomas Huth , Paolo Bonzini , Akihiko Odaki , Daniel Henrique Barboza , David Hildenbrand , Ilya Leoshkevich , Richard Henderson , Laurent Vivier , Yodel Eldar Subject: [PATCH 08/11] gdbstub: Export host_to_gdb_errno File-I/O helper function Date: Tue, 3 Feb 2026 11:51:58 +0000 Message-ID: <20260203115201.2387721-9-alex.bennee@linaro.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260203115201.2387721-1-alex.bennee@linaro.org> References: <20260203115201.2387721-1-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::641; envelope-from=alex.bennee@linaro.org; helo=mail-ej1-x641.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: qemu development 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: 1770119607787154100 From: Yodel Eldar Move host_to_gdb_errno from target/m68k/m68k-semi.c to gdbstub/syscalls.c. Declare it in include/gdbstub/syscalls.h. Add both newly added GDB File-I/O supported errno values, EIO and ENOSYS, to the mapping. Reviewed-by: Richard Henderson Signed-off-by: Yodel Eldar Reviewed-by: Philippe Mathieu-Daud=C3=A9 Message-ID: <20260116014612.226183-3-yodel.eldar@yodel.dev> Signed-off-by: Alex Benn=C3=A9e --- include/gdbstub/syscalls.h | 9 +++++++++ gdbstub/syscalls.c | 36 ++++++++++++++++++++++++++++++++++++ target/m68k/m68k-semi.c | 29 ----------------------------- 3 files changed, 45 insertions(+), 29 deletions(-) diff --git a/include/gdbstub/syscalls.h b/include/gdbstub/syscalls.h index 6200416f77a..a09559128b1 100644 --- a/include/gdbstub/syscalls.h +++ b/include/gdbstub/syscalls.h @@ -102,6 +102,15 @@ void gdb_do_syscall(gdb_syscall_complete_cb cb, const = char *fmt, ...); */ int use_gdb_syscalls(void); =20 +/** + * host_to_gdb_errno: convert host errno to GDB errno value + * @err: errno from host + * + * Given an error number from the host, this helper function returns + * its GDB File-I/O specified representation. + */ +int host_to_gdb_errno(int err); + /** * gdb_exit: exit gdb session, reporting inferior status * @code: exit code reported diff --git a/gdbstub/syscalls.c b/gdbstub/syscalls.c index d8bb90cc1c7..15050984a04 100644 --- a/gdbstub/syscalls.c +++ b/gdbstub/syscalls.c @@ -145,6 +145,42 @@ void gdb_do_syscall(gdb_syscall_complete_cb cb, const = char *fmt, ...) gdb_syscall_handling(gdbserver_syscall_state.syscall_buf); } =20 +/* + * Map host error numbers to their GDB protocol counterparts. + * For the list of GDB File-I/O supported error numbers, please consult: + * https://sourceware.org/gdb/current/onlinedocs/gdb.html/Errno-Values.html + */ +int host_to_gdb_errno(int err) +{ +#define E(X) case E##X: return GDB_E##X + switch (err) { + E(PERM); + E(NOENT); + E(INTR); + E(IO); + E(BADF); + E(ACCES); + E(FAULT); + E(BUSY); + E(EXIST); + E(NODEV); + E(NOTDIR); + E(ISDIR); + E(INVAL); + E(NFILE); + E(MFILE); + E(FBIG); + E(NOSPC); + E(SPIPE); + E(ROFS); + E(NOSYS); + E(NAMETOOLONG); + default: + return GDB_EUNKNOWN; + } +#undef E +} + /* * GDB Command Handlers */ diff --git a/target/m68k/m68k-semi.c b/target/m68k/m68k-semi.c index 578a08dfee8..bdc798a28cb 100644 --- a/target/m68k/m68k-semi.c +++ b/target/m68k/m68k-semi.c @@ -46,35 +46,6 @@ #define HOSTED_ISATTY 12 #define HOSTED_SYSTEM 13 =20 -static int host_to_gdb_errno(int err) -{ -#define E(X) case E##X: return GDB_E##X - switch (err) { - E(PERM); - E(NOENT); - E(INTR); - E(BADF); - E(ACCES); - E(FAULT); - E(BUSY); - E(EXIST); - E(NODEV); - E(NOTDIR); - E(ISDIR); - E(INVAL); - E(NFILE); - E(MFILE); - E(FBIG); - E(NOSPC); - E(SPIPE); - E(ROFS); - E(NAMETOOLONG); - default: - return GDB_EUNKNOWN; - } -#undef E -} - static void m68k_semi_u32_cb(CPUState *cs, uint64_t ret, int err) { CPUM68KState *env =3D cpu_env(cs); --=20 2.47.3