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Convenience Variables for Tracepoints

(int) $trace_frame
The current trace snapshot (a.k.a. frame) number, or -1 if no snapshot is selected.
(int) $tracepoint
The tracepoint for the current trace snapshot.
(int) $trace_line
The line number for the current trace snapshot.
(char []) $trace_file
The source file for the current trace snapshot.
(char []) $trace_func
The name of the function containing $tracepoint.

Note: $trace_file is not suitable for use in printf, use output instead.

Here's a simple example of using these convenience variables for stepping through all the trace snapshots and printing some of their data.

(gdb) tfind start

(gdb) while $trace_frame != -1
> output $trace_file
> printf ", line %d (tracepoint #%d)\n", $trace_line, $tracepoint
> tfind
> end


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