* java/io/natFile.cc (_access): Don't stack-allocate buffer.

	* java/io/natFile.cc (_access): Don't stack-allocate buffer.
	Size buffer based on real size of string.
	(_stat): Likewise.
	(attr): Likewise.
	(getCanonicalPath): Likewise.
	(performList): Likewise.
	(performMkdir): Likewise.
	(performSetReadOnly): Likewise.
	(unixroot): Removed.
	(performRenameTo): Likewise.
	(performSetLastModified): Likewise.
	(performCreate): Likewise.
	(performDelete): Likewise.
	(performListRoots): Always return new array.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@49584 138bc75d-0d04-0410-961f-82ee72b054a4