In addition to commands intended for GDB users, GDB includes a number of commands intended for GDB developers. These commands are provided here for reference.
maint info breakpoints
info breakpoints, display both the
breakpoints you've set explicitly, and those GDB is using for
internal purposes. Internal breakpoints are shown with negative
breakpoint numbers. The type column identifies what kind of breakpoint
is shown:
breakpoint
watchpoint
longjmp
longjmp calls.
longjmp resume
longjmp.
until
until command.
finish
finish command.
shlib events