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135 lines
6.2 KiB
HTML
135 lines
6.2 KiB
HTML
15 years ago
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<HTML>
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<HEAD>
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<TITLE>Tracepoint Dialogs Help</TITLE>
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</HEAD>
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<BODY>
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<H1>Tracepoint Dialogs</H1>
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<H3>Overview</H3>
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<P>There are two Tracepoint Dialogs which help users set tracepoints:
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The Tracepoint Dialog is used to view and add actions and The Actions
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Dialog is used to edit a particular action specified in the
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tracepoint's Action List.</P>
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<P>Tracepoint Dialogs topics:
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<UL>
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<LI><A HREF="#tracedlg">The Tracepoint Dialog</A>
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<UL>
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<LI><A HREF="#t_experiment">Experiment Frame</A>
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<LI><A HREF="#t_actions">Actions Frame</A>
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<UL>
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<LI><A HREF="#t_actions_passcount">Number of Passes</A>
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<LI><A HREF="#t_actions_add">Adding Actions</A>
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<LI><A HREF="#t_actions_modify">Modifying Actions</A>
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</UL>
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</UL>
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<LI><A HREF="#actionsdlg">The Actions Dialog</A>
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<UL>
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<LI><A HREF="#a_variables">Variables List</A>
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<LI><A HREF="#a_collect">Collection List</A>
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<LI><A HREF="#a_other">Other Entry</A>
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</UL>
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</UL></P>
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<H3><A NAME="tracedlg">The Tracepoint Dialog</H3>
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The Tracepoint Dialog is the gateway to viewing and editing
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the properties of any tracepoint. The same dialog is used
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to add new tracepoints and edit and delete existing tracepoints,
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for both single tracepoints and ranges of tracepoints.
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<H4><A NAME="t_experiment">Experiment Frame</A></H4>
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The Experiment Frame displays information about the tracepoint's
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location in the program and its status. Specifically,
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<DL>
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<DT>Number
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<DD>The internal number for this tracepoint. New tracepoints
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all have the number "-1". This number may be used to
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refer to specific tracepoints when using the
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<A HREF="console.html">Console Window</A>
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<DT>Hit Count
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<DD>The number of times the tracepoint has been hit
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<DT>Thread
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<DD>The thread in which the tracepoint exists. This
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feature is not currently implemented.
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<DT>Function
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<DD>The function in which the tracepoint is set
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<DT>File
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<DD>The file in which the tracepoint is set
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<DT>Line(s)
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<DD>The line at which the tracepoint is set or the
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lines which the tracepoint range affects
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</DL>
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<BR>
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<H4><A NAME="t_actions">Actions Frame</A></H4>
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The Actions Frame displays the user-settable properties of the
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tracepoint, including all actions and a pass count.
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<P>A pass count specifies the number of times that the tracepoint
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can be hit on the target before the tracing experiment ceases. A
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pass count of five means that this tracepoint will issue a silent
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"tstop" when it is hit the fifth time (after it has performed all
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it actions). A pass count of zero (0) means that the tracepoint
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will never causes the trace experiment to terminate on the target.</P>
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<P>To <A NAME="t_actions_add">add an action</A> for the tracepoint,
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select the appropriate action from the Action ComboBox and click
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"Add". The <A HREF="#actionsdlg">Action Dialog</A> appears to
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allow editing the action's properties.</P>
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<P>Currently, there are two actions: collect and while-stepping.
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Any number of collect actions may be added to specify that the
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target should collect variables, registers, and memory when
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it is hit. The while-stepping action may be used to collect
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data for a specified number of machine instructions. Only one
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while-stepping action may be specified for any tracepoint.</P>
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<P>To <A NAME="t_actions_modify">modify the actions</A> associated
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with a tracepoint, double-click the left mouse button on the action
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listed in the Action Frame, and the <A HREF="#actionsdlg">Actions
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Dialog</A> will appear.</P>
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<P>To accept the tracepoint as displayed, click the OK button. To abort
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installing or editing the tracepoint, click the CANCEL button. To delete
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the tracepoint (if it is not a new tracepoint), click the DELETE button.</P>
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<H3><A NAME="actionsdlg">The Actions Dialog</A></H3>
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The Actions Dialog is used to edit an action for the tracepoint. It
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consists of two lists, one containing all (uncollected) local variables
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(including function arguments) and registers, and one containing everything
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being collected.
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<P>The <A NAME="#a_variables">Variables List</A> lists all uncollected local variables,
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function arguments, and registers and may also display the special indentifiers
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"All Locals", "All Arguments", and "All Registers". Global variables (and file static
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variables) do not appear on the Variable List.</P>
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<P>To move a variable from the Variables List to the Collection List, double-click
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the variable in the Variables List or select the variable in the Variable
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List and press the "<<< Collect" button. To specify a range of variables to be
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collected, select them in the Variables list and click the "<<< Collect" button.</P>
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<P><A NAME="a_collect">The Collection List displays all data being collected
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by the action, including the special types "All Locals", "All Registers", and
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"All Arguments", which specify that every local variable, every register, and
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every function argument will be collected, respectively. Specifying a local
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variable, for example, and "All Locals" will cause only the special identifier
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"All Locals" to be sent to the target. Analogously, "All Registers" and "All
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Arguments" also override any register or function argument specifically listed
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in the Collection List.</P>
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<P>To remove data from the Collection List, double-click any of the entries listed
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in the List, or select a range of data to be removed and press the "Ignore >>>"
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button. All local variables, function arguments, registers, and special identifiers
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will be returned to the Variable List, while any expression (memory ranges, globals)
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will simply "disappear". To add these again, use the <A HREF="#a_other">Other Entry</A>
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at the bottom of the display.</P>
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<P>The <A NAME="#a_other">Other Entry</A> can be used to move any variable listed in
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either the Collection List or the Variable List to the other list. It can also
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be used to specify expressions for collection, such as memory ranges and global variables.
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Simply enter the name of the global variable or the expression and press the enter key on
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the keyboard. If the expression is valid, it will be added/removed from the Collection
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List.</P>
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</BODY>
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</HTML>
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