Zichuan Wei <******@****.***> 1677736843 -0800

  // 'relation' is kCopy.
  void Init(const Element* array, size_t a_size, RelationToSource relation) {
    if (relation == kReference) {
      array_ = array;
    } else {
      Element* const copy = new Element[a_size];
      CopyArray(array, a_size, copy);
      array_ = copy;
    }
    size_ = a_size;
    relation_to_source_ = relation;
  }

  const Element* array_;
  size_t size_;

  // 'relation' is kCopy.
  void Init(const Element* array, size_t a_size, RelationToSource relation) {
    if (relation == kReference) {
      array_ = array;
    } else {
      Element* const copy = new Element[a_size];
      CopyArray(array, a_size, copy);
      array_ = copy;
    }
    size_ = a_size;
    relation_to_source_ = relation;
  }

  const Element* array_;
  size_t size_;

	}
	x := c.stackcache[order].list
	size := c.stackcache[order].size
	lock(&stackpool[order].item.mu)
	for size > _StackCacheSize/2 {
		y := x.ptr().next
		stackpoolfree(x, order)
		x = y
		size -= fixedStack << order
	}
	unlock(&stackpool[order].item.mu)
	c.stackcache[order].list = x
	c.stackcache[order].size = size
}

//go:systemstack
func stackcache_clear(c *mcache) {

	if new != nil && new.ss_flags&_SS_DISABLE != 0 && new.ss_size == 0 {
		// Despite the fact that Darwin's sigaltstack man page says it ignores the size
		// when SS_DISABLE is set, it doesn't. sigaltstack returns ENOMEM
		// if we don't give it a reasonable size.
		// ref: http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20140421/214296.html
		new.ss_size = 32768
	}

	Rdev           int32
	Atim           Timespec
	Mtim           Timespec
	Ctim           Timespec
	Size           int64
	Blocks         int64
	Blksize        int32
	Flags          uint32
	Gen            uint32
	X__st_birthtim Timespec
}

type Statfs_t struct {
	F_flags       uint32
	F_bsize       uint32
	F_iosize      uint32
	F_blocks      uint64
	F_bfree       uint64
	F_bavail      int64

		return false
	}

	var st stackt
	sigaltstack(nil, &st)
	stsp := uintptr(unsafe.Pointer(st.ss_sp))
	if st.ss_flags&_SS_DISABLE == 0 && sp >= stsp && sp < stsp+st.ss_size {
		setGsignalStack(&st, gsigStack)
		return true
	}

	if sp >= mp.g0.stack.lo && sp < mp.g0.stack.hi {
		// The signal was delivered on the g0 stack.
		// This can happen when linked with C code

	Uid     uint32
	Gid     uint32
	Rdev    int32
	Atim    Timespec
	Mtim    Timespec
	Ctim    Timespec
	Size    int64
	Blocks  int64
	Blksize int32
	Flags   uint32
	Gen     uint32
	_       [4]byte
	_       Timespec
}

type Statfs_t struct {
	F_flags       uint32
	F_bsize       uint32
	F_iosize      uint32
	_             [4]byte
	F_blocks      uint64
	F_bfree       uint64
	F_bavail      int64

	Nlink   uint32
	Uid     uint32
	Gid     uint32
	Rdev    int32
	Atim    Timespec
	Mtim    Timespec
	Ctim    Timespec
	Size    int64
	Blocks  int64
	Blksize int32
	Flags   uint32
	Gen     uint32
	_       Timespec
}

type Statfs_t struct {
	F_flags       uint32
	F_bsize       uint32
	F_iosize      uint32
	F_blocks      uint64
	F_bfree       uint64
	F_bavail      int64
	F_files       uint64

	SYS_LGETXATTR            = 379 // { int|sys||lgetxattr(const char *path, const char *name, void *value, size_t size); }
	SYS_FGETXATTR            = 380 // { int|sys||fgetxattr(int fd, const char *name, void *value, size_t size); }
	SYS_LISTXATTR            = 381 // { int|sys||listxattr(const char *path, char *list, size_t size); }
	SYS_LLISTXATTR           = 382 // { int|sys||llistxattr(const char *path, char *list, size_t size); }