| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| /* |
| * QEMU internal errno values for implementing user-only POSIX. |
| * |
| * Copyright (c) 2003 Fabrice Bellard |
| * Copyright (c) 2021 Linaro, Ltd. |
| */ |
| |
| #ifndef SPECIAL_ERRNO_H |
| #define SPECIAL_ERRNO_H |
| |
| /* |
| * All of these are QEMU internal, not visible to the guest. |
| * They should be chosen so as to not overlap with any host |
| * or guest errno. |
| */ |
| |
| /* |
| * This is returned when a system call should be restarted, to tell the |
| * main loop that it should wind the guest PC backwards so it will |
| * re-execute the syscall after handling any pending signals. |
| */ |
| #define QEMU_ERESTARTSYS 512 |
| |
| /* |
| * This is returned after a successful sigreturn syscall, to indicate |
| * that it has correctly set the guest registers and so the main loop |
| * should not touch them. |
| */ |
| #define QEMU_ESIGRETURN 513 |
| |
| #endif /* SPECIAL_ERRNO_H */ |
