diff options
Diffstat (limited to 'gdb/breakpoint.h')
| -rw-r--r-- | gdb/breakpoint.h | 70 |
1 files changed, 57 insertions, 13 deletions
diff --git a/gdb/breakpoint.h b/gdb/breakpoint.h index 9dbf23b..6fca479 100644 --- a/gdb/breakpoint.h +++ b/gdb/breakpoint.h @@ -30,6 +30,8 @@ struct block; struct breakpoint_object; struct get_number_or_range_state; struct thread_info; +struct bpstats; +struct bp_location; /* This is the maximum number of bytes a breakpoint instruction can take. Feel free to increase it. It's just used in a few places to @@ -278,12 +280,26 @@ enum bp_loc_type bp_loc_other /* Miscellaneous... */ }; +/* This structure is a collection of function pointers that, if + available, will be called instead of performing the default action + for this bp_loc_type. */ + +struct bp_location_ops +{ + /* Destructor. Releases everything from SELF (but not SELF + itself). */ + void (*dtor) (struct bp_location *self); +}; + struct bp_location { /* Chain pointer to the next breakpoint location for the same parent breakpoint. */ struct bp_location *next; + /* Methods associated with this location. */ + const struct bp_location_ops *ops; + /* The reference count. */ int refc; @@ -397,6 +413,14 @@ struct breakpoint_ops itself). */ void (*dtor) (struct breakpoint *self); + /* Allocate a location for this breakpoint. */ + struct bp_location * (*allocate_location) (struct breakpoint *); + + /* Reevaluate a breakpoint. This is necessary after symbols change + (e.g., an executable or DSO was loaded, or the inferior just + started). */ + void (*re_set) (struct breakpoint *self); + /* Insert the breakpoint or watchpoint or activate the catchpoint. Return 0 for success, 1 if the breakpoint, watchpoint or catchpoint type is not supported, -1 for failure. */ @@ -408,11 +432,16 @@ struct breakpoint_ops -1 for failure. */ int (*remove_location) (struct bp_location *); - /* Return non-zero if the debugger should tell the user that this - breakpoint was hit. */ - int (*breakpoint_hit) (const struct bp_location *, struct address_space *, + /* Return true if it the target has stopped due to hitting + breakpoint location BL. This function does not check if we + should stop, only if BL explains the stop. */ + int (*breakpoint_hit) (const struct bp_location *bl, struct address_space *, CORE_ADDR); + /* Check internal conditions of the breakpoint referred to by BS. + If we should not stop for this breakpoint, set BS->stop to 0. */ + void (*check_status) (struct bpstats *bs); + /* Tell how many hardware resources (debug registers) are needed for this breakpoint. If this function is not provided, then the breakpoint or watchpoint needs one debug register. */ @@ -937,6 +966,12 @@ extern int breakpoint_thread_match (struct address_space *, extern void until_break_command (char *, int, int); +/* Initialize a struct bp_location. */ + +extern void init_bp_location (struct bp_location *loc, + const struct bp_location_ops *ops, + struct breakpoint *owner); + extern void update_breakpoint_locations (struct breakpoint *b, struct symtabs_and_lines sals, struct symtabs_and_lines sals_end); @@ -945,6 +980,12 @@ extern void breakpoint_re_set (void); extern void breakpoint_re_set_thread (struct breakpoint *); +/* The default re_set method, for typical hardware or software + breakpoints. Reevaluate the breakpoint and recreate its + locations. */ + +extern void breakpoint_re_set_default (struct breakpoint *); + extern struct breakpoint *set_momentary_breakpoint (struct gdbarch *, struct symtab_and_line, struct frame_id, enum bptype); @@ -1001,18 +1042,21 @@ extern void void *user_data_catch, void *user_data_tcatch); -/* Create a breakpoint struct for Ada exception catchpoints. */ +/* Initialize a breakpoint struct for Ada exception catchpoints. */ extern void - create_ada_exception_breakpoint (struct gdbarch *gdbarch, - struct symtab_and_line sal, - char *addr_string, - char *exp_string, - char *cond_string, - struct expression *cond, - struct breakpoint_ops *ops, - int tempflag, - int from_tty); + init_ada_exception_breakpoint (struct breakpoint *b, + struct gdbarch *gdbarch, + struct symtab_and_line sal, + char *addr_string, + struct breakpoint_ops *ops, + int tempflag, + int from_tty); + +/* Add breakpoint B on the breakpoint list, and notify the user, the + target and breakpoint_created observers of its existence. */ + +extern void install_breakpoint (struct breakpoint *b); extern int create_breakpoint (struct gdbarch *gdbarch, char *arg, char *cond_string, int thread, |