diff options
Diffstat (limited to 'src/basic/missing.h')
| -rw-r--r-- | src/basic/missing.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/src/basic/missing.h b/src/basic/missing.h index 417604aa64..bdea7606e6 100644 --- a/src/basic/missing.h +++ b/src/basic/missing.h @@ -1177,3 +1177,33 @@ static inline key_serial_t request_key(const char *type, const char *description #endif #endif + +#ifndef __NR_copy_file_range +# if defined(__x86_64__) +# define __NR_copy_file_range 326 +# elif defined(__i386__) +# define __NR_copy_file_range 377 +# elif defined __s390__ +# define __NR_copy_file_range 375 +# elif defined __arm__ +# define __NR_copy_file_range 391 +# elif defined __aarch64__ +# define __NR_copy_file_range 285 +# else +# warning "__NR_copy_file_range not defined for your architecture" +# endif +#endif + +#if !HAVE_DECL_COPY_FILE_RANGE +static inline ssize_t copy_file_range(int fd_in, loff_t *off_in, + int fd_out, loff_t *off_out, + size_t len, + unsigned int flags) { +#ifdef __NR_copy_file_range + return syscall(__NR_copy_file_range, fd_in, off_in, fd_out, off_out, len, flags); +#else + errno = ENOSYS; + return -1; +#endif +} +#endif |