useful for a hack I had to put in; I'm going to leave it in because
I can see how there might be times when it would indeed be useful */
-/* This is for a breakpoint or a watchpoint. */
+/* This is for all kinds of breakpoints. */
struct breakpoint
{
+ /* Methods associated with this breakpoint. */
+ struct breakpoint_ops *ops;
+
struct breakpoint *next;
/* Type of breakpoint. */
enum bptype type;
char *cond_string;
/* String form of exp to use for displaying to the user
(malloc'd), or NULL if none. */
- char *exp_string;
- /* String form to use for reparsing of EXP (malloc'd) or NULL. */
- char *exp_string_reparse;
-
- /* The expression we are watching, or NULL if not a watchpoint. */
- struct expression *exp;
- /* The largest block within which it is valid, or NULL if it is
- valid anywhere (e.g. consists just of global symbols). */
- struct block *exp_valid_block;
- /* The conditional expression if any. NULL if not a watchpoint. */
- struct expression *cond_exp;
- /* The largest block within which it is valid, or NULL if it is
- valid anywhere (e.g. consists just of global symbols). */
- struct block *cond_exp_valid_block;
- /* Value of the watchpoint the last time we checked it, or NULL
- when we do not know the value yet or the value was not
- readable. VAL is never lazy. */
- struct value *val;
- /* Nonzero if VAL is valid. If VAL_VALID is set but VAL is NULL,
- then an error occurred reading the value. */
- int val_valid;
/* Holds the address of the related watchpoint_scope breakpoint
when using watchpoints on local variables (might the concept of
FIXME). */
struct breakpoint *related_breakpoint;
- /* Holds the frame address which identifies the frame this
- watchpoint should be evaluated in, or `null' if the watchpoint
- should be evaluated on the outermost frame. */
- struct frame_id watchpoint_frame;
-
- /* Holds the thread which identifies the frame this watchpoint
- should be considered in scope for, or `null_ptid' if the
- watchpoint should be evaluated in all threads. */
- ptid_t watchpoint_thread;
-
- /* For hardware watchpoints, the triggered status according to the
- hardware. */
- enum watchpoint_triggered watchpoint_triggered;
-
/* Thread number for thread-specific breakpoint,
or -1 if don't care. */
int thread;
aborting, so you can back up to just before the abort. */
int hit_count;
- /* Methods associated with this breakpoint. */
- struct breakpoint_ops *ops;
-
/* Is breakpoint's condition not yet parsed because we found
no location initially so had no context to parse
the condition in. */
can sometimes be NULL for enabled GDBs as not all breakpoint
types are tracked by the Python scripting API. */
struct breakpoint_object *py_bp_object;
+ };
- /* Whether this watchpoint is exact (see target_exact_watchpoints). */
- int exact;
+/* An instance of this type is used to represent a watchpoint. It
+ includes a "struct breakpoint" as a kind of base class; users
+ downcast to "struct breakpoint *" when needed. */
- /* The mask address for a masked hardware watchpoint. */
- CORE_ADDR hw_wp_mask;
- };
+struct watchpoint
+{
+ /* The base class. */
+ struct breakpoint base;
+
+ /* String form of exp to use for displaying to the user (malloc'd),
+ or NULL if none. */
+ char *exp_string;
+ /* String form to use for reparsing of EXP (malloc'd) or NULL. */
+ char *exp_string_reparse;
+
+ /* The expression we are watching, or NULL if not a watchpoint. */
+ struct expression *exp;
+ /* The largest block within which it is valid, or NULL if it is
+ valid anywhere (e.g. consists just of global symbols). */
+ struct block *exp_valid_block;
+ /* The conditional expression if any. */
+ struct expression *cond_exp;
+ /* The largest block within which it is valid, or NULL if it is
+ valid anywhere (e.g. consists just of global symbols). */
+ struct block *cond_exp_valid_block;
+ /* Value of the watchpoint the last time we checked it, or NULL when
+ we do not know the value yet or the value was not readable. VAL
+ is never lazy. */
+ struct value *val;
+ /* Nonzero if VAL is valid. If VAL_VALID is set but VAL is NULL,
+ then an error occurred reading the value. */
+ int val_valid;
+
+ /* Holds the frame address which identifies the frame this
+ watchpoint should be evaluated in, or `null' if the watchpoint
+ should be evaluated on the outermost frame. */
+ struct frame_id watchpoint_frame;
+
+ /* Holds the thread which identifies the frame this watchpoint
+ should be considered in scope for, or `null_ptid' if the
+ watchpoint should be evaluated in all threads. */
+ ptid_t watchpoint_thread;
+
+ /* For hardware watchpoints, the triggered status according to the
+ hardware. */
+ enum watchpoint_triggered watchpoint_triggered;
+
+ /* Whether this watchpoint is exact (see
+ target_exact_watchpoints). */
+ int exact;
+
+ /* The mask address for a masked hardware watchpoint. */
+ CORE_ADDR hw_wp_mask;
+};
+
+/* Returns true if BPT is really a watchpoint. */
+
+extern int is_watchpoint (const struct breakpoint *bpt);
typedef struct breakpoint *breakpoint_p;
DEF_VEC_P(breakpoint_p);
extern void rwatch_command_wrapper (char *, int, int);
extern void tbreak_command (char *, int);
-extern void null_re_set (struct breakpoint *b);
-extern int null_works_in_software_mode (const struct breakpoint *b);
-extern int null_resources_needed (const struct bp_location *bl);
-extern void null_check_status (bpstat bs);
-extern void null_print_one_detail (const struct breakpoint *self,
- struct ui_out *uiout);
-
extern struct breakpoint_ops bkpt_breakpoint_ops;
-extern void bkpt_dtor (struct breakpoint *self);
-extern struct bp_location *bkpt_allocate_location (struct breakpoint *self);
-extern void bkpt_re_set (struct breakpoint *b);
-extern int bkpt_insert_location (struct bp_location *bl);
-extern int bkpt_remove_location (struct bp_location *bl);
-extern int bkpt_breakpoint_hit (const struct bp_location *bl,
- struct address_space *aspace,
- CORE_ADDR bp_addr);
-extern void bkpt_check_status (bpstat bs);
-extern int bkpt_resources_needed (const struct bp_location *bl);
-extern int bkpt_works_in_software_mode (const struct breakpoint *b);
-extern enum print_stop_action bkpt_print_it (bpstat bs);
-extern void null_print_one_detail (const struct breakpoint *self,
- struct ui_out *uiout);
-extern void bkpt_print_mention (struct breakpoint *b);
-extern void bkpt_print_recreate (struct breakpoint *tp, struct ui_file *fp);
+extern void initialize_breakpoint_ops (void);
/* Arguments to pass as context to some catch command handlers. */
#define CATCH_PERMANENT ((void *) (uintptr_t) 0)
int from_tty);
/* Add breakpoint B on the breakpoint list, and notify the user, the
- target and breakpoint_created observers of its existence. */
+ target and breakpoint_created observers of its existence. If
+ INTERNAL is non-zero, the breakpoint number will be allocated from
+ the internal breakpoint count. */
-extern void install_breakpoint (struct breakpoint *b);
+extern void install_breakpoint (int internal, struct breakpoint *b);
extern int create_breakpoint (struct gdbarch *gdbarch, char *arg,
char *cond_string, int thread,
projects / deliverable / binutils-gdb.git / blobdiff