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#ifndef __LIBC_SYSCALL_H
#define __LIBC_SYSCALL_H
#include <asm/syscall.h>
#include <asm/unistd_64.h>
#include <errno.h>
typedef long syscall_arg_t;
#define __SYSCALL_NARGS_(a, b, c, d, e, f, g, h, n, ...) n
#define __SYSCALL_NARGS(...) \
__SYSCALL_NARGS_(__VA_ARGS__, 7, 6, 5, 4, 3, 2, 1, 0, )
#define __SYSCALL_CONCAT_(a, b) a##b
#define __SYSCALL_CONCAT(a, b) __SYSCALL_CONCAT_(a, b)
#define __SYSCALL_(b, ...) \
__SYSCALL_CONCAT(b, __SYSCALL_NARGS(__VA_ARGS__))(__VA_ARGS__)
#define __syscall(...) __SYSCALL_(__syscall_, __VA_ARGS__)
#define syscall(...) __syscall_ret(__syscall(__VA_ARGS__))
#define __sa(x) ((syscall_arg_t)(x))
#define __syscall_0(n) __syscall0(__NR_##n)
#define __syscall_1(n, a) __syscall1(__NR_##n, __sa(a))
#define __syscall_2(n, a, b) __syscall2(__NR_##n, __sa(a), __sa(b))
#define __syscall_3(n, a, b, c) __syscall3(__NR_##n, __sa(a), __sa(b), __sa(c))
#define __syscall_4(n, a, b, c, d) \
__syscall4(__NR_##n, __sa(a), __sa(b), __sa(c), __sa(d))
#define __syscall_5(n, a, b, c, d, e) \
__syscall5(__NR_##n, __sa(a), __sa(b), __sa(c), __sa(d), __sa(e))
#define __syscall_6(n, a, b, c, d, e, f) \
__syscall6(__NR_##n, __sa(a), __sa(b), __sa(c), __sa(d), __sa(e), \
__sa(f))
#define __syscall_7(n, a, b, c, d, e, f, g) \
__syscall7(__NR_##n, __sa(a), __sa(b), __sa(c), __sa(d), __sa(e), \
__sa(f), __sa(g))
static __inline long __syscall_ret(long ret)
{
if (ret > -4096 && ret < 0) {
errno = -ret;
ret = -1;
}
return ret;
}
#ifdef __NR_pread64
#undef __NR_pread
#define __NR_pread __NR_pread64
#endif
#ifdef __NR_pwrite64
#undef __NR_pwrite
#define __NR_pwrite __NR_pwrite64
#endif
#endif
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