diff options
Diffstat (limited to 'gdb/defs.h')
| -rw-r--r-- | gdb/defs.h | 34 |
1 files changed, 30 insertions, 4 deletions
@@ -145,6 +145,34 @@ extern int check_quit_flag (void); /* * Set the quit flag. */ extern void set_quit_flag (void); +/* The current quit handler (and its type). This is called from the + QUIT macro. See default_quit_handler below for default behavior. + Parts of GDB temporarily override this to e.g., completely suppress + Ctrl-C because it would not be safe to throw. E.g., normally, you + wouldn't want to quit between a RSP command and its response, as + that would break the communication with the target, but you may + still want to intercept the Ctrl-C and offer to disconnect if the + user presses Ctrl-C multiple times while the target is stuck + waiting for the wedged remote stub. */ +typedef void (quit_handler_ftype) (void); +extern quit_handler_ftype *quit_handler; + +/* Override the current quit handler. Sets NEW_QUIT_HANDLER as + current quit handler, and installs a cleanup that when run restores + the previous quit handler. */ +struct cleanup * + make_cleanup_override_quit_handler (quit_handler_ftype *new_quit_handler); + +/* The default quit handler. Checks whether Ctrl-C was pressed, and + if so: + + - If GDB owns the terminal, throws a quit exception. + + - If GDB does not own the terminal, forwards the Ctrl-C to the + target. +*/ +extern void default_quit_handler (void); + /* Flag that function quit should call quit_force. */ extern volatile int sync_quit_force_run; @@ -156,10 +184,8 @@ extern void quit (void); extern void maybe_quit (void); -/* Check whether a Ctrl-C was typed, and if so, call quit. The target - is given a chance to process the Ctrl-C. E.g., it may detect that - repeated Ctrl-C requests were issued, and choose to close the - connection. */ +/* Check whether a Ctrl-C was typed, and if so, call the current quit + handler. */ #define QUIT maybe_quit () /* Set the serial event associated with the quit flag. */ |