//sys	Unmount(path string, flags int) (err error)
//sys	write(fd int, p []byte) (n int, err error)
//sys	mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error)
//sys	munmap(addr uintptr, length uintptr) (err error)
//sys	getfsstat(stat *Statfs_t, bufsize uintptr, flags int) (n int, err error)
//sys	utimensat(dirfd int, path string, times *[2]Timespec, flags int) (err error)

	return
}

func Mmap(fd int, offset int64, length int, prot int, flags int) (data []byte, err error) {
	return mapper.Mmap(fd, offset, length, prot, flags)
}

func Munmap(b []byte) (err error) {
	return mapper.Munmap(b)
}

//sys   Gethostname(buf []byte) (err error) = SYS___GETHOSTNAME_A
//sysnb	Getgid() (gid int)
//sysnb	Getpid() (pid int)
//sysnb	Getpgid(pid int) (pgid int, err error) = SYS_GETPGID

	// to code generation.
	bench.Start("GenSymsLate")
	if thearch.GenSymsLate != nil {
		thearch.GenSymsLate(ctxt, ctxt.loader)
	}

	bench.Start("Asmb2")
	asmb2(ctxt)

	bench.Start("Munmap")
	ctxt.Out.Close() // Close handles Munmapping if necessary.

	bench.Start("hostlink")
	ctxt.hostlink()
	if ctxt.Debugvlog != 0 {
		ctxt.Logf("%s", ctxt.loader.Stat())

	n = int(r0)
	if r0 == -1 && er != nil {
		err = er
	}
	return
}

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func munmap(addr uintptr, length uintptr) (err error) {
	r0, er := C.munmap(C.uintptr_t(addr), C.uintptr_t(length))
	if r0 == -1 && er != nil {
		err = er
	}
	return
}

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

	ECALL
	MOV	$-4096, T0
	BGEU	T0, A0, 5(PC)
	SUB	A0, ZERO, A0
	MOV	ZERO, p+32(FP)
	MOV	A0, err+40(FP)
	RET
ok:
	MOV	A0, p+32(FP)
	MOV	ZERO, err+40(FP)
	RET

// func munmap(addr unsafe.Pointer, n uintptr)
TEXT runtime·munmap(SB),NOSPLIT|NOFRAME,$0
	MOV	addr+0(FP), A0
	MOV	n+8(FP), A1
	MOV	$SYS_munmap, A7
	ECALL
	MOV	$-4096, T0
	BLTU	A0, T0, 2(PC)
	WORD	$0	// crash
	RET

	SYS_SSTK                     = 70  // { int sstk(int incr); }
	SYS_OVADVISE                 = 72  // { int ovadvise(int anom); } vadvise \
	SYS_MUNMAP                   = 73  // { int munmap(void *addr, size_t len); }
	SYS_MPROTECT                 = 74  // { int mprotect(const void *addr, size_t len, \
	SYS_MADVISE                  = 75  // { int madvise(void *addr, size_t len, \

	SYS_SSTK                     = 70  // { int sstk(int incr); }
	SYS_OVADVISE                 = 72  // { int ovadvise(int anom); } vadvise \
	SYS_MUNMAP                   = 73  // { int munmap(void *addr, size_t len); }
	SYS_MPROTECT                 = 74  // { int mprotect(const void *addr, size_t len, \
	SYS_MADVISE                  = 75  // { int madvise(void *addr, size_t len, \

//go:cgo_import_dynamic libc___xnet_bind __xnet_bind "libsocket.so"
//go:cgo_import_dynamic libc___xnet_connect __xnet_connect "libsocket.so"
//go:cgo_import_dynamic libc_mmap mmap "libc.so"
//go:cgo_import_dynamic libc_munmap munmap "libc.so"
//go:cgo_import_dynamic libc___xnet_sendto __xnet_sendto "libsocket.so"
//go:cgo_import_dynamic libc___xnet_socket __xnet_socket "libsocket.so"
//go:cgo_import_dynamic libc___xnet_socketpair __xnet_socketpair "libsocket.so"

int recvfrom(int, uintptr_t, size_t, int, uintptr_t, uintptr_t);
int sendto(int, uintptr_t, size_t, int, uintptr_t, uintptr_t);
int nrecvmsg(int, uintptr_t, int);
int nsendmsg(int, uintptr_t, int);
int munmap(uintptr_t, uintptr_t);
int madvise(uintptr_t, size_t, int);
int mprotect(uintptr_t, size_t, int);
int mlock(uintptr_t, size_t);
int mlockall(int);
int msync(uintptr_t, size_t, int);
int munlock(uintptr_t, size_t);

	SYS_VFORK         = 66  // { pid_t vfork(void); }
	SYS_SBRK          = 69  // { int sbrk(int incr); }
	SYS_SSTK          = 70  // { int sstk(int incr); }
	SYS_MUNMAP        = 73  // { int munmap(void *addr, size_t len); }
	SYS_MPROTECT      = 74  // { int mprotect(void *addr, size_t len, int prot); }
	SYS_MADVISE       = 75  // { int madvise(void *addr, size_t len, int behav); }