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5.1.3 Deleting breakpoints
It is often necessary to eliminate a breakpoint, watchpoint, or catchpoint once it has
done its job and you no longer want your program to stop there. This is called deleting
the breakpoint. A breakpoint that has been deleted no longer exists; it is forgotten.
With the clear command you can delete breakpoints according to where they are in
your program. With the delete command you can delete individual breakpoints,
watchpoints, or catchpoints by specifying their breakpoint numbers.
It is not necessary to delete a breakpoint to proceed past it. GDB automatically ignores
breakpoints on the first instruction to be executed when you continue execution without
changing the execution address.
clear
Delete any breakpoints at the next instruction to
be executed in the selected stack frame (see
“Selecting a frame” (page 73)). When the
innermost frame is selected, this is a good way
to delete a breakpoint where your program just
stopped.
clear function, clear
filename:function
Delete any breakpoints set at entry to the function
function.
clear linenum, clear
filename:linenum
Delete any breakpoints set at or within the code
of the specified line.
delete [breakpoints]
[range...]
Delete the breakpoints, watchpoints, or
catchpoints of the breakpoint ranges specified as
arguments. If no argument is specified, delete all
breakpoints (GDB asks confirmation, unless you
have set confirm off). You can abbreviate
this command as d.
5.1.4 Disabling breakpoints
Rather than deleting a breakpoint, watchpoint, or catchpoint, you might prefer to disable
it. This makes the breakpoint inoperative as if it had been deleted, but remembers the
information on the breakpoint so that you can enable it again later.
You disable and enable breakpoints, watchpoints, and catchpoints with the enable
and disable commands, optionally specifying one or more breakpoint numbers as
arguments. Use info break or info watch to print a list of breakpoints,
watchpoints, and catchpoints if you do not know which numbers to use.
A breakpoint, watchpoint, or catchpoint can have any of four different states of
enablement:
• Enabled. The breakpoint stops your program. A breakpoint set with the break
command starts out in this state.
• Disabled. The breakpoint has no effect on your program.
58 Stopping and Continuing