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#ifndef __NONSTD_SYSCALL_H__
#define __NONSTD_SYSCALL_H__
#include <errno.h>
#include "nonstd/types.h"
#ifndef ENOSYS
#define ENOSYS 10
#endif
#define SCNO(_var, _name, _notfound) static int _var = -2; do { \
if ((_var) == -2) { (_var) = __libc.syscall_lookup((_name)); } \
if ((_var) == -1) { errno = ENOSYS; return (_notfound); } \
} while (0)
#define SCNOFAIL() static int _scno = -2; \
if (_scno == -2) { _scno = __libc.syscall_lookup(__func__); } \
return __libc.syscall(_scno)
#define SC(_type, ...) static int _scno = -2; \
if (_scno == -2) { _scno = __libc.syscall_lookup(__func__); } \
_type _ret = __libc.syscall(_scno, __VA_ARGS__); \
if (_ret < 0) { \
errno = -_ret; \
return -1; \
} \
return _ret
#define SC0(_type) static int _scno = -2; \
if (_scno == -2) { _scno = __libc.syscall_lookup(__func__); } \
_type __ret = __libc.syscall(_scno); \
if (_ret < 0) { \
errno = -_ret; \
return -1; \
} \
return _ret
#endif
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