diff options
Diffstat (limited to 'include/qemu/osdep.h')
| -rw-r--r-- | include/qemu/osdep.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/include/qemu/osdep.h b/include/qemu/osdep.h index a434382c58..b6ffdc15bf 100644 --- a/include/qemu/osdep.h +++ b/include/qemu/osdep.h @@ -119,6 +119,10 @@ extern int daemon(int, int); #include "sysemu/os-posix.h" #endif +#ifdef __APPLE__ +#include <AvailabilityMacros.h> +#endif + #include "glib-compat.h" #include "qemu/typedefs.h" @@ -682,4 +686,28 @@ char *qemu_get_host_name(Error **errp); */ size_t qemu_get_host_physmem(void); +/* + * Toggle write/execute on the pages marked MAP_JIT + * for the current thread. + */ +#if defined(MAC_OS_VERSION_11_0) && \ + MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_VERSION_11_0 +static inline void qemu_thread_jit_execute(void) +{ + if (__builtin_available(macOS 11.0, *)) { + pthread_jit_write_protect_np(true); + } +} + +static inline void qemu_thread_jit_write(void) +{ + if (__builtin_available(macOS 11.0, *)) { + pthread_jit_write_protect_np(false); + } +} +#else +static inline void qemu_thread_jit_write(void) {} +static inline void qemu_thread_jit_execute(void) {} +#endif + #endif |