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<strong>Tornado</strong> 2.0 User’s Guide The command panel ➍ allows you to interact directly with the debugger, issuing commands such as the list command. Type the add-symbols command here if needed to load symbol information for any modules the debugger cannot find on its own; see What Modules to Debug, p.253. The state indicator line ➎ reports on the state of the debugger connection. At the left of this line, the debugger shows the name of the source file (if any) for the code being debugged. At the right of the line, the debugger indicates what it is connected to (if anything) by showing one of the messages shown in Table 7-2. Table 7-2 Messages in CrossWind State Indicator Line Message No Target Target: WTX server Target: WTX Task/Stopped Target: WTX Task/Exception Target: WTX Task/Running Target: WTX System Status No target currently selected. Connected to a target in task mode, but not to any particular task. Connected to a task, which is stopped. Connected to a task, which is stopped due to an exception. Connected to a task, which is running. Connected to a target in system mode. 7.4 CrossWind in Detail This section describes the debugger commands and controls in detail. 7.4.1 Graphical Controls, p.236 is a complete discussion of all graphical debugger controls. 7.4.2 Debugger Command Panel: GDB, p.252 discusses when to use the command panel rather than graphical controls, and what commands are particularly useful because of their effects on the graphical context. 7.4.1 Graphical Controls The debugger provides three kinds of graphical controls: menus, buttons, and mouse-based manipulation of other display elements. 236
7 Debugger Display Manipulation scrollbars Whenever the amount of text in either main panel exceeds the available space, the debugger displays scrollbars to allow you to view whatever portion of either display you are interested in. As shown in Figure 7-1, you can scroll the command panel either vertically or horizontally, and you can scroll the program-display panel vertically. (Make the window wider if you need to see wider lines in your source program.) sash If you refer again to Figure 7-1, you can see that the two major portions of the debugger display are the program-display panel ➌ and the command panel ➍. As in other <strong>Tornado</strong> tools, the separator line between these two panels includes a sash ( ). The sash allows you to allocate space between the two panels. To change the amount of space each panel takes up in the overall display, drag the small square up or down with your mouse. left click Clicking the left mouse button selects the entire word under the pointer in the program-display panel (but not in the command panel). This is often useful for selecting a symbol as an argument to one of the debugger buttons. right click Clicking the right mouse button anywhere in the program-display panel sets a breakpoint on the line under the pointer. A right click on any line with an existing breakpoint (marked in the margin of the program-display panel) removes that breakpoint. left drag As with other X applications, you can drag the left mouse button over any displayed text to select it (whether as an argument to another control in the debugger, or to copy into another window). middle drag Use the middle mouse button to drag certain controls and symbols between the button bar and the program-display panel. For example, drag the pencil (using the middle button) to a particular source line, to edit that line; or drag the program-counter symbol to another source line to continue executing until that line is reached. context The debugger displays this icon in the program-display panel, at the left of the next line to be executed, each time your program stops. Drag the context 7 237
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E X Resources E.1 Predefined X Reso
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Index Symbols ? (C/Tcl interpreter
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Index assembler options, specifying
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Index download options 260 download
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Index creating 100 linking 103 open
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Index info command (CrossWind) 258
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Index unreserved 82 virtual console
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