/* Data structures associated with breakpoints in GDB.
- Copyright (C) 1992-2017 Free Software Foundation, Inc.
+ Copyright (C) 1992-2019 Free Software Foundation, Inc.
This file is part of GDB.
#include "frame.h"
#include "value.h"
-#include "vec.h"
+#include "gdbsupport/vec.h"
#include "ax.h"
#include "command.h"
-#include "break-common.h"
+#include "gdbsupport/break-common.h"
#include "probe.h"
#include "location.h"
#include <vector>
-#include "common/array-view.h"
+#include "gdbsupport/array-view.h"
#include "cli/cli-script.h"
-struct value;
struct block;
struct gdbpy_breakpoint_object;
struct gdbscm_breakpoint_object;
struct bp_location;
struct linespec_result;
struct linespec_sals;
+struct inferior;
+
+/* Enum for exception-handling support in 'catch throw', 'catch rethrow',
+ 'catch catch' and the MI equivalent. */
+
+enum exception_event_kind
+{
+ EX_EVENT_THROW,
+ EX_EVENT_RETHROW,
+ EX_EVENT_CATCH
+};
/* Why are we removing the breakpoint from the target? */
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);
-};
-
class bp_location
{
public:
bp_location () = default;
- bp_location (const bp_location_ops *ops, breakpoint *owner);
+ bp_location (breakpoint *owner);
+
+ virtual ~bp_location ();
/* Chain pointer to the next breakpoint location for
the same parent breakpoint. */
bp_location *next = NULL;
- /* Methods associated with this location. */
- const bp_location_ops *ops = NULL;
-
/* The reference count. */
int refc = 0;
to find the corresponding source file name. */
struct symtab *symtab = NULL;
+
+ /* The symbol found by the location parser, if any. This may be used to
+ ascertain when an event location was set at a different location than
+ the one originally selected by parsing, e.g., inlined symbols. */
+ const struct symbol *symbol = NULL;
+
+ /* Similarly, the minimal symbol found by the location parser, if
+ any. This may be used to ascertain if the location was
+ originally set on a GNU ifunc symbol. */
+ const minimal_symbol *msymbol = NULL;
+
+ /* The objfile the symbol or minimal symbol were found in. */
+ const struct objfile *objfile = NULL;
};
/* The possible return values for print_bpstat, print_it_normal,
watch_triggered_yes
};
-typedef struct bp_location *bp_location_p;
-DEF_VEC_P(bp_location_p);
-
-/* A reference-counted struct command_line. This is an implementation
- detail to the breakpoints module. */
-typedef std::shared_ptr<command_line> counted_command_line;
-
/* Some targets (e.g., embedded PowerPC) need two debug registers to set
a watchpoint over a memory region. If this flag is true, GDB will use
only one register per watchpoint, thus assuming that all acesses that
/* 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;
+ value_ref_ptr 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;
ULONGEST traceframe_usage;
/* The static tracepoint marker id, if known. */
- char *static_trace_marker_id;
+ std::string static_trace_marker_id;
/* LTTng/UST allow more than one marker with the same ID string,
although it unadvised because it confuses tools. When setting
int static_trace_marker_id_idx;
};
-typedef struct breakpoint *breakpoint_p;
-DEF_VEC_P(breakpoint_p);
\f
/* The following stuff is an abstract data type "bpstat" ("breakpoint
status"). This provides the ability to determine whether we have
is part of the bpstat is copied as well. */
extern bpstat bpstat_copy (bpstat);
-extern bpstat bpstat_stop_status (const address_space *aspace,
- CORE_ADDR pc, ptid_t ptid,
+/* Build the (raw) bpstat chain for the stop information given by ASPACE,
+ BP_ADDR, and WS. Returns the head of the bpstat chain. */
+
+extern bpstat build_bpstat_chain (const address_space *aspace,
+ CORE_ADDR bp_addr,
const struct target_waitstatus *ws);
+
+/* Get a bpstat associated with having just stopped at address
+ BP_ADDR in thread PTID. STOP_CHAIN may be supplied as a previously
+ computed stop chain or NULL, in which case the stop chain will be
+ computed using build_bpstat_chain.
+
+ Determine whether we stopped at a breakpoint, etc, or whether we
+ don't understand this stop. Result is a chain of bpstat's such
+ that:
+
+ if we don't understand the stop, the result is a null pointer.
+
+ if we understand why we stopped, the result is not null.
+
+ Each element of the chain refers to a particular breakpoint or
+ watchpoint at which we have stopped. (We may have stopped for
+ several reasons concurrently.)
+
+ Each element of the chain has valid next, breakpoint_at,
+ commands, FIXME??? fields. */
+
+extern bpstat bpstat_stop_status (const address_space *aspace,
+ CORE_ADDR pc, thread_info *thread,
+ const struct target_waitstatus *ws,
+ bpstat stop_chain = NULL);
\f
/* This bpstat_what stuff tells wait_for_inferior what to do with a
breakpoint (a challenging task).
counted_command_line commands;
/* Old value associated with a watchpoint. */
- struct value *old_val;
+ value_ref_ptr old_val;
/* Nonzero if this breakpoint tells us to print the frame. */
char print;
extern void breakpoint_re_set_thread (struct breakpoint *);
-extern struct breakpoint *set_momentary_breakpoint
+extern void delete_breakpoint (struct breakpoint *);
+
+struct breakpoint_deleter
+{
+ void operator() (struct breakpoint *b) const
+ {
+ delete_breakpoint (b);
+ }
+};
+
+typedef std::unique_ptr<struct breakpoint, breakpoint_deleter> breakpoint_up;
+
+extern breakpoint_up set_momentary_breakpoint
(struct gdbarch *, struct symtab_and_line, struct frame_id, enum bptype);
-extern struct breakpoint *set_momentary_breakpoint_at_pc
+extern breakpoint_up set_momentary_breakpoint_at_pc
(struct gdbarch *, CORE_ADDR pc, enum bptype type);
extern struct breakpoint *clone_momentary_breakpoint (struct breakpoint *bpkt);
extern void breakpoint_init_inferior (enum inf_context);
-extern struct cleanup *make_cleanup_delete_breakpoint (struct breakpoint *);
-
-extern void delete_breakpoint (struct breakpoint *);
-
extern void breakpoint_auto_delete (bpstat);
typedef void (*walk_bp_location_callback) (struct bp_location *, void *);
NOT be deallocated after use. */
const char *bpdisp_text (enum bpdisp disp);
-extern void break_command (char *, int);
+extern void break_command (const char *, int);
-extern void hbreak_command_wrapper (char *, int);
-extern void thbreak_command_wrapper (char *, int);
-extern void rbreak_command_wrapper (char *, int);
+extern void hbreak_command_wrapper (const char *, int);
+extern void thbreak_command_wrapper (const char *, int);
+extern void rbreak_command_wrapper (const char *, int);
extern void watch_command_wrapper (const char *, int, int);
extern void awatch_command_wrapper (const char *, int, int);
extern void rwatch_command_wrapper (const char *, int, int);
-extern void tbreak_command (char *, int);
+extern void tbreak_command (const char *, int);
extern struct breakpoint_ops base_breakpoint_ops;
extern struct breakpoint_ops bkpt_breakpoint_ops;
extern void
add_catch_command (const char *name, const char *docstring,
- cmd_sfunc_ftype *sfunc,
+ cmd_const_sfunc_ftype *sfunc,
completer_ftype *completer,
void *user_data_catch,
void *user_data_tcatch);
extern int remove_breakpoints (void);
-extern int remove_breakpoints_pid (int pid);
+/* Remove breakpoints of inferior INF. */
+
+extern void remove_breakpoints_inf (inferior *inf);
/* This function can be used to update the breakpoint package's state
after an exec() system call has been executed.
extern void enable_breakpoint (struct breakpoint *);
extern void breakpoint_set_commands (struct breakpoint *b,
- command_line_up &&commands);
+ counted_command_line &&commands);
extern void breakpoint_set_silent (struct breakpoint *b, int silent);
/* Find a tracepoint by parsing a number in the supplied string. */
extern struct tracepoint *
- get_tracepoint_by_number (char **arg,
+ get_tracepoint_by_number (const char **arg,
number_or_range_parser *parser);
-/* Return a vector of all tracepoints currently defined. The vector
- is newly allocated; the caller should free when done with it. */
-extern VEC(breakpoint_p) *all_tracepoints (void);
+/* Return a vector of all tracepoints currently defined. */
+extern std::vector<breakpoint *> all_tracepoints (void);
extern int is_tracepoint (const struct breakpoint *b);
-/* Return a vector of all static tracepoints defined at ADDR. The
- vector is newly allocated; the caller should free when done with
- it. */
-extern VEC(breakpoint_p) *static_tracepoints_here (CORE_ADDR addr);
+/* Return a vector of all static tracepoints defined at ADDR. */
+extern std::vector<breakpoint *> static_tracepoints_here (CORE_ADDR addr);
+
+/* Create an instance of this to start registering breakpoint numbers
+ for a later "commands" command. */
+
+class scoped_rbreak_breakpoints
+{
+public:
-/* Function that can be passed to read_command_line to validate
- that each command is suitable for tracepoint command list. */
-extern void check_tracepoint_command (char *line, void *closure);
+ scoped_rbreak_breakpoints ();
+ ~scoped_rbreak_breakpoints ();
-/* Call at the start and end of an "rbreak" command to register
- breakpoint numbers for a later "commands" command. */
-extern void start_rbreak_breakpoints (void);
-extern void end_rbreak_breakpoints (void);
+ DISABLE_COPY_AND_ASSIGN (scoped_rbreak_breakpoints);
+};
/* Breakpoint iterator function.
/* Print the specified breakpoint. */
extern void print_breakpoint (breakpoint *bp);
+/* Command element for the 'commands' command. */
+extern cmd_list_element *commands_cmd_element;
+
+/* Whether to use the fixed output when printing information about a
+ multi-location breakpoint (see PR 9659). */
+
+extern bool fix_multi_location_breakpoint_output_globally;
+
+/* Deal with "catch catch", "catch throw", and "catch rethrow" commands and
+ the MI equivalents. Sets up to catch events of type EX_EVENT. When
+ TEMPFLAG is true only the next matching event is caught after which the
+ catch-point is deleted. If REGEX is not NULL then only exceptions whose
+ type name matches REGEX will trigger the event. */
+
+extern void catch_exception_event (enum exception_event_kind ex_event,
+ const char *regex, bool tempflag,
+ int from_tty);
+
#endif /* !defined (BREAKPOINT_H) */
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