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([2602:ae:1547:e101:3cf2:c634:5b19:25f6]) by smtp.gmail.com with ESMTPSA id r6-20020a170902be0600b00162037fbacdsm12971279pls.187.2022.06.07.13.46.15 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 07 Jun 2022 13:46:15 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v4 19/53] gdbstub: Convert GDB error numbers to host error numbers Date: Tue, 7 Jun 2022 13:45:23 -0700 Message-Id: <20220607204557.658541-20-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220607204557.658541-1-richard.henderson@linaro.org> References: <20220607204557.658541-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::52c; envelope-from=richard.henderson@linaro.org; helo=mail-pg1-x52c.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+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Provide the callback with consistent state -- always use host error numbers. The individual callback can then decide if the errno requires conversion for the guest. Signed-off-by: Richard Henderson Reviewed-by: Luc Michel --- gdbstub.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/gdbstub.c b/gdbstub.c index a3ff8702ce..ecc9d9cd6f 100644 --- a/gdbstub.c +++ b/gdbstub.c @@ -1878,6 +1878,37 @@ static void handle_file_io(GArray *params, void *user_ctx) } else { err = 0; } + + /* Convert GDB error numbers back to host error numbers. */ +#define E(X) case GDB_E##X: err = E##X; break + switch (err) { + case 0: + break; + 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: + err = EINVAL; + break; + } +#undef E + gdbserver_state.current_syscall_cb(gdbserver_state.c_cpu, ret, err); gdbserver_state.current_syscall_cb = NULL; }