diff options
Diffstat (limited to 'sysdeps/unix/sysdep.h')
| -rw-r--r-- | sysdeps/unix/sysdep.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/sysdeps/unix/sysdep.h b/sysdeps/unix/sysdep.h index 52dad582ce..c4316db4bc 100644 --- a/sysdeps/unix/sysdep.h +++ b/sysdeps/unix/sysdep.h @@ -73,3 +73,22 @@ #ifndef INLINE_SYSCALL #define INLINE_SYSCALL(name, nr, args...) __syscall_##name (args) #endif + +/* Similar to INLINE_SYSCALL, but with return type. It should only be + used with function return. */ +#ifndef INLINE_SYSCALL_RETURN +#define INLINE_SYSCALL_RETURN(name, nr, type, args...) \ + INLINE_SYSCALL (name, nr, args) +#endif + +/* Set error number and return value. It should only be used with + function return. ERR is the negative error number returned from + the majority of Linux kernels for which -ERR is no-op + with INTERNAL_SYSCALL_ERRNO. */ +#ifndef INLINE_SYSCALL_ERROR_RETURN +#define INLINE_SYSCALL_ERROR_RETURN(err, type, value) \ + ({ \ + __set_errno (-err); \ + (type) (value); \ + }) +#endif |