debuggers: import openocd-0.7.0

Initial check-in of openocd-0.7.0 as it can be downloaded from
http://sourceforge.net/projects/openocd/files/openocd/0.7.0/

Any modifications will follow.

Change-Id: I6949beaefd589e046395ea0cb80f4e1ab1654d55

debuggers/openocd/jimtcl/tests/tailcall.test

@@ -0,0 +1,61 @@
+source [file dirname [info script]]/testing.tcl
+
+needs cmd tailcall
+needs cmd try tclcompat
+
+test tailcall-1.1 {Basic tailcall} {
+	# Demo -- a tail-recursive factorial function
+	proc fac {x {val 1}} {
+		if {$x <= 2} {
+			expr {$x * $val}
+		} else {
+			tailcall fac [expr {$x -1}] [expr {$x * $val}]
+		}
+	}
+	fac 10
+} {3628800}
+
+test tailcall-1.2 {Tailcall in try} {
+	set x 0
+	proc a {} { upvar x x; incr x }
+	proc b {} { upvar x x; incr x 4; try { tailcall a } finally { incr x 8 }}
+	b
+	set x
+} {13}
+
+test tailcall-1.3 {Tailcall does return} {
+	set x 0
+	proc a {} { upvar x x; incr x }
+	proc b {} { upvar x x; incr x 4; tailcall a; incr x 8}
+	b
+	set x
+} {5}
+
+test tailcall-1.5 {interaction of uplevel and tailcall} {
+	proc a {cmd} {
+		tailcall $cmd
+	}
+	proc b {} {
+		lappend result [uplevel 1 a c]
+		lappend result [uplevel 1 a c]
+	}
+	proc c {} {
+		return c
+	}
+	a b
+} {c c}
+
+test tailcall-1.6 {tailcall pass through return} {
+	proc a {script} {
+		# return from $script should pass through back to the caller
+		tailcall foreach i {1 2 3} $script
+	}
+	proc b {} {
+		a {return ok}
+		# Should not get here
+		return bad
+	}
+	b
+} {ok}
+
+testreport