+/* Flags to tell what kind of breakpoint is at current line. */
+#define TUI_BP_ENABLED 0x01
+#define TUI_BP_DISABLED 0x02
+#define TUI_BP_HIT 0x04
+#define TUI_BP_CONDITIONAL 0x08
+#define TUI_BP_HARDWARE 0x10
+
+/* Position of breakpoint markers in the exec info string. */
+#define TUI_BP_HIT_POS 0
+#define TUI_BP_BREAK_POS 1
+#define TUI_EXEC_POS 2
+#define TUI_EXECINFO_SIZE 4
+
+typedef char TuiExecInfoContent[TUI_EXECINFO_SIZE];