#ifndef _INTERNAL_SYSCALL_H
#define _INTERNAL_SYSCALL_H

#include <sys/syscall.h>
#include "syscall_arch.h"

#ifndef SYSCALL_RLIM_INFINITY
#define SYSCALL_RLIM_INFINITY (~0ULL)
#endif

#ifndef SYSCALL_MMAP2_UNIT
#define SYSCALL_MMAP2_UNIT 4096ULL
#endif

#ifndef __scc
#define __scc(X) ((long)(X))
typedef long syscall_arg_t;
#endif

__attribute__((visibility("hidden"))) long __syscall_ret(unsigned long),
    __syscall(syscall_arg_t, ...), __syscall_cp(syscall_arg_t,
                                                syscall_arg_t,
                                                syscall_arg_t,
                                                syscall_arg_t,
                                                syscall_arg_t,
                                                syscall_arg_t,
                                                syscall_arg_t);

#ifdef SYSCALL_NO_INLINE
#define __syscall0(n) (__syscall)(n)
#define __syscall1(n, a) (__syscall)(n, __scc(a))
#define __syscall2(n, a, b) (__syscall)(n, __scc(a), __scc(b))
#define __syscall3(n, a, b, c) (__syscall)(n, __scc(a), __scc(b), __scc(c))
#define __syscall4(n, a, b, c, d) \
  (__syscall)(n, __scc(a), __scc(b), __scc(c), __scc(d))
#define __syscall5(n, a, b, c, d, e) \
  (__syscall)(n, __scc(a), __scc(b), __scc(c), __scc(d), __scc(e))
#define __syscall6(n, a, b, c, d, e, f) \
  (__syscall)(n, __scc(a), __scc(b), __scc(c), __scc(d), __scc(e), __scc(f))
#else
#define __syscall1(n, a) __syscall1(n, __scc(a))
#define __syscall2(n, a, b) __syscall2(n, __scc(a), __scc(b))
#define __syscall3(n, a, b, c) __syscall3(n, __scc(a), __scc(b), __scc(c))
#define __syscall4(n, a, b, c, d) \
  __syscall4(n, __scc(a), __scc(b), __scc(c), __scc(d))
#define __syscall5(n, a, b, c, d, e) \
  __syscall5(n, __scc(a), __scc(b), __scc(c), __scc(d), __scc(e))
#define __syscall6(n, a, b, c, d, e, f) \
  __syscall6(n, __scc(a), __scc(b), __scc(c), __scc(d), __scc(e), __scc(f))
#endif
#define __syscall7(n, a, b, c, d, e, f, g)                                   \
  (__syscall)(n, __scc(a), __scc(b), __scc(c), __scc(d), __scc(e), __scc(f), \
              __scc(g))

#define __SYSCALL_NARGS_X(a, b, c, d, e, f, g, h, n, ...) n
#define __SYSCALL_NARGS(...) \
  __SYSCALL_NARGS_X(__VA_ARGS__, 7, 6, 5, 4, 3, 2, 1, 0, )
#define __SYSCALL_CONCAT_X(a, b) a##b
#define __SYSCALL_CONCAT(a, b) __SYSCALL_CONCAT_X(a, b)
#define __SYSCALL_DISP(b, ...) \
  __SYSCALL_CONCAT(b, __SYSCALL_NARGS(__VA_ARGS__))(__VA_ARGS__)

#define __syscall(...) __SYSCALL_DISP(__syscall, __VA_ARGS__)
#define syscall(...) __syscall_ret(__syscall(__VA_ARGS__))

#define __syscall_cp0(n) (__syscall_cp)(n, 0, 0, 0, 0, 0, 0)
#define __syscall_cp1(n, a) (__syscall_cp)(n, __scc(a), 0, 0, 0, 0, 0)
#define __syscall_cp2(n, a, b) (__syscall_cp)(n, __scc(a), __scc(b), 0, 0, 0, 0)
#define __syscall_cp3(n, a, b, c) \
  (__syscall_cp)(n, __scc(a), __scc(b), __scc(c), 0, 0, 0)
#define __syscall_cp4(n, a, b, c, d) \
  (__syscall_cp)(n, __scc(a), __scc(b), __scc(c), __scc(d), 0, 0)
#define __syscall_cp5(n, a, b, c, d, e) \
  (__syscall_cp)(n, __scc(a), __scc(b), __scc(c), __scc(d), __scc(e), 0)
#define __syscall_cp6(n, a, b, c, d, e, f) \
  (__syscall_cp)(n, __scc(a), __scc(b), __scc(c), __scc(d), __scc(e), __scc(f))

#define __syscall_cp(...) __SYSCALL_DISP(__syscall_cp, __VA_ARGS__)
#define syscall_cp(...) __syscall_ret(__syscall_cp(__VA_ARGS__))

/* fixup legacy 16-bit junk */

#ifdef SYS_getuid32
#undef SYS_lchown
#undef SYS_getuid
#undef SYS_getgid
#undef SYS_geteuid
#undef SYS_getegid
#undef SYS_setreuid
#undef SYS_setregid
#undef SYS_getgroups
#undef SYS_setgroups
#undef SYS_fchown
#undef SYS_setresuid
#undef SYS_getresuid
#undef SYS_setresgid
#undef SYS_getresgid
#undef SYS_chown
#undef SYS_setuid
#undef SYS_setgid
#undef SYS_setfsuid
#undef SYS_setfsgid
#define SYS_lchown SYS_lchown32
#define SYS_getuid SYS_getuid32
#define SYS_getgid SYS_getgid32
#define SYS_geteuid SYS_geteuid32
#define SYS_getegid SYS_getegid32
#define SYS_setreuid SYS_setreuid32
#define SYS_setregid SYS_setregid32
#define SYS_getgroups SYS_getgroups32
#define SYS_setgroups SYS_setgroups32
#define SYS_fchown SYS_fchown32
#define SYS_setresuid SYS_setresuid32
#define SYS_getresuid SYS_getresuid32
#define SYS_setresgid SYS_setresgid32
#define SYS_getresgid SYS_getresgid32
#define SYS_chown SYS_chown32
#define SYS_setuid SYS_setuid32
#define SYS_setgid SYS_setgid32
#define SYS_setfsuid SYS_setfsuid32
#define SYS_setfsgid SYS_setfsgid32
#endif

/* fixup legacy 32-bit-vs-lfs64 junk */

#ifdef SYS_fcntl64
#undef SYS_fcntl
#define SYS_fcntl SYS_fcntl64
#endif

#ifdef SYS_getdents64
#undef SYS_getdents
#define SYS_getdents SYS_getdents64
#endif

#ifdef SYS_ftruncate64
#undef SYS_ftruncate
#undef SYS_truncate
#define SYS_ftruncate SYS_ftruncate64
#define SYS_truncate SYS_truncate64
#endif

#ifdef SYS_stat64
#undef SYS_stat
#define SYS_stat SYS_stat64
#endif

#ifdef SYS_fstat64
#undef SYS_fstat
#define SYS_fstat SYS_fstat64
#endif

#ifdef SYS_lstat64
#undef SYS_lstat
#define SYS_lstat SYS_lstat64
#endif

#ifdef SYS_statfs64
#undef SYS_statfs
#define SYS_statfs SYS_statfs64
#endif

#ifdef SYS_fstatfs64
#undef SYS_fstatfs
#define SYS_fstatfs SYS_fstatfs64
#endif

#if defined(SYS_newfstatat)
#undef SYS_fstatat
#define SYS_fstatat SYS_newfstatat
#elif defined(SYS_fstatat64)
#undef SYS_fstatat
#define SYS_fstatat SYS_fstatat64
#endif

#ifdef SYS_ugetrlimit
#undef SYS_getrlimit
#define SYS_getrlimit SYS_ugetrlimit
#endif

#ifdef SYS__newselect
#undef SYS_select
#define SYS_select SYS__newselect
#endif

#ifdef SYS_pread64
#undef SYS_pread
#undef SYS_pwrite
#define SYS_pread SYS_pread64
#define SYS_pwrite SYS_pwrite64
#endif

#ifdef SYS_fadvise64_64
#undef SYS_fadvise
#define SYS_fadvise SYS_fadvise64_64
#elif defined(SYS_fadvise64)
#undef SYS_fadvise
#define SYS_fadvise SYS_fadvise64
#endif

#ifdef SYS_sendfile64
#undef SYS_sendfile
#define SYS_sendfile SYS_sendfile64
#endif

#ifdef SYS_open
#define __sys_open2(x, pn, fl) __syscall2(SYS_open, pn, (fl) | O_LARGEFILE)
#define __sys_open3(x, pn, fl, mo) \
  __syscall3(SYS_open, pn, (fl) | O_LARGEFILE, mo)
#define __sys_open_cp2(x, pn, fl) \
  __syscall_cp2(SYS_open, pn, (fl) | O_LARGEFILE)
#define __sys_open_cp3(x, pn, fl, mo) \
  __syscall_cp3(SYS_open, pn, (fl) | O_LARGEFILE, mo)
#else
#define __sys_open2(x, pn, fl) \
  __syscall3(SYS_openat, AT_FDCWD, pn, (fl) | O_LARGEFILE)
#define __sys_open3(x, pn, fl, mo) \
  __syscall4(SYS_openat, AT_FDCWD, pn, (fl) | O_LARGEFILE, mo)
#define __sys_open_cp2(x, pn, fl) \
  __syscall_cp3(SYS_openat, AT_FDCWD, pn, (fl) | O_LARGEFILE)
#define __sys_open_cp3(x, pn, fl, mo) \
  __syscall_cp4(SYS_openat, AT_FDCWD, pn, (fl) | O_LARGEFILE, mo)
#endif

#define __sys_open(...) __SYSCALL_DISP(__sys_open, , __VA_ARGS__)
#define sys_open(...) __syscall_ret(__sys_open(__VA_ARGS__))

#define __sys_open_cp(...) __SYSCALL_DISP(__sys_open_cp, , __VA_ARGS__)
#define sys_open_cp(...) __syscall_ret(__sys_open_cp(__VA_ARGS__))

#endif