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| Home > Tracing Tutorial > Excluding a trace range to avoid tracing a function > Procedure | |||
To exclude a function from being traced:
Remove the trace range you set previously:
Select View → Break/Tracepoints from the Code window main menu to open the Break/Tracepoints view. Figure 10.34 shows an example:
Right-click on the tracepoint to display the context menu.
Select Delete from the context menu. The tracepoint is deleted.
Close the Break/Tracepoints view.
Reload the image:
Right-click
on the Load Image+Symbols entry in the Process
Control view to display the context menu.
Select Reload from the context
menu. The image is reloaded and the PC is reset to the image entry
point (0x8000).
Set a Trace Start Point at the address corresponding
to while(1):
In the Code window, click the trace.c tab.
Right-click on line 71 in the trace.c tab to display the context menu.
Select Locate Disassembly from the context menu to open the Prompt dialog box.
The Disassembly tab is displayed, and the corresponding address is indicated by a hollow blue arrow. Figure 10.28 shows an example:
Right-click in the margin at the address corresponding
to while(1) to display the context menu.
Select Insert Tracepoint... from the context menu to open the New Tracepoint dialog box.
Select Trace Start Point from the list of tracepoint types.
Click OK. The dialog box
closes, and the Trace Start Point is set as indicated by the green
arrow
. Figure 10.36 shows an example:
RealView Debugger generates a TRACE CLI command, which is also displayed in the Cmd tab of the Output view, for example:
trace,prompt 0x00008248
Set a Start of Excluded Trace Range for instructions and data at line 143 in the source:
In the Code window, click the trace.c tab in the Code window.
Scroll down until line 143 is visible.
Right-click in the margin at line 143 to display the context menu.
Select Insert Tracepoint... from the context menu to open the New Tracepoint dialog box.
Select Start of Excluded Trace Range (Instruction and Data) from the list of tracepoint types.
Click OK. The dialog box
closes, and a Start of Excluded Trace Range tracepoint is set as
indicated by the green arrow
. Figure 10.37 shows an example:
Set an End of Excluded Trace Range for instructions and data at line 150 in the source:
Scroll down until line 150 is visible.
Right-click in the margin at line 150 to display the context menu.
Select Insert Tracepoint... from the context menu to open the New Tracepoint dialog box.
Select End of Excluded Trace Range (Instruction and Data) from the list of tracepoint types.
This is the only trace range option available, because you must complete the current trace range before another trace range can be set.
Click OK. The dialog box
closes, and the End of Excluded Trace Range tracepoint is set as
indicated by the green arrow
. Figure 10.38 shows an example:
Click Run on
the Debug toolbar to start execution.
After
a short time, click Stop on the Debug toolbar
to stop execution. The captured trace is displayed in the Trace tab
of the Analysis window. Figure 10.39 shows an example:
Setting trace ranges in conjunction with trace start and end points
the following in the RealView Debugger Command Line Reference Guide:
Chapter 2 RealView Debugger Commands for details of the DISASSEMBLE and TRACE commands.