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(gdb) apropos reverse
rc -- Continue program being debugged but run it in reverse
reverse-continue -- Continue program being debugged but run it in reverse
reverse-finish -- Execute backward until just before selected stack frame is called
reverse-next -- Step program backward
reverse-nexti -- Step backward one instruction
reverse-search -- Search backward for regular expression (see regex(3)) from last line listed
reverse-step -- Step program backward until it reaches the beginning of another source line
reverse-stepi -- Step backward exactly one instruction
rn -- Step program backward
set exec-direction -- Set direction of execution
set remote reverse-continue-packet -- Set use of remote protocol `bc' (reverse-continue) packet
set remote reverse-step-packet -- Set use of remote protocol `bs' (reverse-step) packet
set tui active-border-mode -- Set the attribute mode to use for the active TUI window border
set tui border-mode -- Set the attribute mode to use for the TUI window borders
show exec-direction -- Show direction of execution (forward/reverse)
show remote reverse-continue-packet -- Show current use of remote protocol `bc' (reverse-continue) packet
show remote reverse-step-packet -- Show current use of remote protocol `bs' (reverse-step) packet
show tui active-border-mode -- Show the attribute mode to use for the active TUI window border
show tui border-mode -- Show the attribute mode to use for the TUI window borders
(gdb) help bookmark
Set a bookmark in the program's execution history.
A bookmark represents a point in the execution history
that can be returned to at a later point in the debug session.
(gdb) apropos bookmark
bookmark -- Set a bookmark in the program's execution history
delete bookmark -- Delete a bookmark from the bookmark list
goto-bookmark -- Go to an earlier-bookmarked point in the program's execution history
info bookmarks -- Status of user-settable bookmarks