/* Data structures associated with breakpoints in GDB.
- Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
- 2002, 2003, 2004, 2007, 2008, 2009, 2010, 2011
- Free Software Foundation, Inc.
+ Copyright (C) 1992-2004, 2007-2012 Free Software Foundation, Inc.
This file is part of GDB.
#include "frame.h"
#include "value.h"
#include "vec.h"
+#include "ax.h"
struct value;
struct block;
struct thread_info;
struct bpstats;
struct bp_location;
+struct linespec_result;
+struct linespec_sals;
/* 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
bp_fast_tracepoint,
bp_static_tracepoint,
+ /* A dynamic printf stops at the given location, does a formatted
+ print, then automatically continues. (Although this is sort of
+ like a macro packaging up standard breakpoint functionality,
+ GDB doesn't have a way to construct types of breakpoint from
+ elements of behavior.) */
+ bp_dprintf,
+
/* Event for JIT compiled code generation or deletion. */
bp_jit_event,
};
+/* Status of breakpoint conditions used when synchronizing
+ conditions with the target. */
+
+enum condition_status
+ {
+ condition_unchanged = 0,
+ condition_modified,
+ condition_updated
+ };
+
/* Information used by targets to insert and remove breakpoints. */
struct bp_target_info
(e.g. if a remote stub handled the details). We may still need
the size to remove the breakpoint safely. */
int placed_size;
+
+ /* Vector of conditions the target should evaluate if it supports target-side
+ breakpoint conditions. */
+ VEC(agent_expr_p) *conditions;
};
/* GDB maintains two types of information about each breakpoint (or
the owner breakpoint object. */
struct expression *cond;
+ /* Conditional expression in agent expression
+ bytecode form. This is used for stub-side breakpoint
+ condition evaluation. */
+ struct agent_expr *cond_bytecode;
+
+ /* Signals that the condition has changed since the last time
+ we updated the global location list. This means the condition
+ needs to be sent to the target again. This is used together
+ with target-side breakpoint conditions.
+
+ condition_unchanged: It means there has been no condition changes.
+
+ condition_modified: It means this location had its condition modified.
+
+ condition_updated: It means we already marked all the locations that are
+ duplicates of this location and thus we don't need to call
+ force_breakpoint_reinsertion (...) for this location. */
+
+ enum condition_status condition_changed;
+
+ /* Signals that breakpoint conditions need to be re-synched with the
+ target. This has no use other than target-side breakpoints. */
+ char needs_update;
+
/* This location's address is in an unloaded solib, and so this
location should not be inserted. It will be automatically
enabled when that solib is loaded. */
processor's architectual constraints. */
CORE_ADDR requested_address;
+ /* An additional address assigned with this location. This is currently
+ only used by STT_GNU_IFUNC resolver breakpoints to hold the address
+ of the resolver function. */
+ CORE_ADDR related_address;
+
+ /* If the location comes from a probe point, this is the probe associated
+ with it. */
+ struct probe *probe;
+
char *function_name;
/* Details of the placed breakpoint, when inserted. */
/* 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);
+ should stop, only if BL explains the stop. ASPACE is the address
+ space in which the event occurred, BP_ADDR is the address at
+ which the inferior stopped, and WS is the target_waitstatus
+ describing the event. */
+ int (*breakpoint_hit) (const struct bp_location *bl,
+ struct address_space *aspace,
+ CORE_ADDR bp_addr,
+ const struct target_waitstatus *ws);
/* Check internal conditions of the breakpoint referred to by BS.
If we should not stop for this breakpoint, set BS->stop to 0. */
/* Print to FP the CLI command that recreates this breakpoint. */
void (*print_recreate) (struct breakpoint *, struct ui_file *fp);
+
+ /* Create SALs from address string, storing the result in linespec_result.
+
+ For an explanation about the arguments, see the function
+ `create_sals_from_address_default'.
+
+ This function is called inside `create_breakpoint'. */
+ void (*create_sals_from_address) (char **, struct linespec_result *,
+ enum bptype, char *, char **);
+
+ /* This method will be responsible for creating a breakpoint given its SALs.
+ Usually, it just calls `create_breakpoints_sal' (for ordinary
+ breakpoints). However, there may be some special cases where we might
+ need to do some tweaks, e.g., see
+ `strace_marker_create_breakpoints_sal'.
+
+ This function is called inside `create_breakpoint'. */
+ void (*create_breakpoints_sal) (struct gdbarch *,
+ struct linespec_result *,
+ struct linespec_sals *, char *,
+ char *,
+ enum bptype, enum bpdisp, int, int,
+ int, const struct breakpoint_ops *,
+ int, int, int, unsigned);
+
+ /* Given the address string (second parameter), this method decodes it
+ and provides the SAL locations related to it. For ordinary breakpoints,
+ it calls `decode_line_full'.
+
+ This function is called inside `addr_string_to_sals'. */
+ void (*decode_linespec) (struct breakpoint *, char **,
+ struct symtabs_and_lines *);
};
/* Helper for breakpoint_ops->print_recreate implementations. Prints
watch_triggered_yes
};
-/* This is used to declare the VEC syscalls_to_be_caught. */
-DEF_VEC_I(int);
-
typedef struct bp_location *bp_location_p;
DEF_VEC_P(bp_location_p);
/* Number of stops at this breakpoint that should
be continued automatically before really stopping. */
int ignore_count;
+
+ /* Number of stops at this breakpoint before it will be
+ disabled. */
+ int enable_count;
+
/* Chain of command lines to execute when this breakpoint is
hit. */
struct counted_command_line *commands;
/* The program space used to set the breakpoint. This is only set
for breakpoints which are specific to a program space; for
- ordinary breakpoints this is NULL. */
+ non-thread-specific ordinary breakpoints this is NULL. */
struct program_space *pspace;
/* String we used to set the breakpoint (malloc'd). */
/* String form of the breakpoint condition (malloc'd), or NULL if
there is no condition. */
char *cond_string;
- /* String form of exp to use for displaying to the user
- (malloc'd), or NULL if none. */
+
+ /* String form of extra parameters, or NULL if there are none. */
+ char *extra_string;
/* Holds the address of the related watchpoint_scope breakpoint
when using watchpoints on local variables (might the concept of
CORE_ADDR hw_wp_mask;
};
+/* Return true if BPT is either a software breakpoint or a hardware
+ breakpoint. */
+
+extern int is_breakpoint (const struct breakpoint *bpt);
+
/* Returns true if BPT is really a watchpoint. */
extern int is_watchpoint (const struct breakpoint *bpt);
extern bpstat bpstat_copy (bpstat);
extern bpstat bpstat_stop_status (struct address_space *aspace,
- CORE_ADDR pc, ptid_t ptid);
+ CORE_ADDR pc, ptid_t ptid,
+ const struct target_waitstatus *ws);
\f
/* This bpstat_what stuff tells wait_for_inferior what to do with a
breakpoint (a challenging task).
extern void breakpoint_auto_delete (bpstat);
+typedef void (*walk_bp_location_callback) (struct bp_location *, void *);
+
+extern void iterate_over_bp_locations (walk_bp_location_callback);
+
/* Return the chain of command lines to execute when this breakpoint
is hit. */
extern struct command_line *breakpoint_commands (struct breakpoint *b);
extern void install_breakpoint (int internal, struct breakpoint *b,
int update_gll);
+/* Flags that can be passed down to create_breakpoint, etc., to affect
+ breakpoint creation in several ways. */
+
+enum breakpoint_create_flags
+ {
+ /* We're adding a breakpoint to our tables that is already
+ inserted in the target. */
+ CREATE_BREAKPOINT_FLAGS_INSERTED = 1 << 0
+ };
+
extern int create_breakpoint (struct gdbarch *gdbarch, char *arg,
char *cond_string, int thread,
+ char *extra_string,
int parse_condition_and_thread,
int tempflag, enum bptype wanted_type,
int ignore_count,
const struct breakpoint_ops *ops,
int from_tty,
int enabled,
- int internal);
+ int internal, unsigned flags);
extern void insert_breakpoints (void);
struct frame_id frame);
extern void delete_longjmp_breakpoint (int thread);
+/* Mark all longjmp breakpoints from THREAD for later deletion. */
+extern void delete_longjmp_breakpoint_at_next_stop (int thread);
+
extern void enable_overlay_breakpoints (void);
extern void disable_overlay_breakpoints (void);
extern void disable_breakpoints_in_shlibs (void);
/* This function returns TRUE if ep is a catchpoint. */
-extern int ep_is_catchpoint (struct breakpoint *);
+extern int is_catchpoint (struct breakpoint *);
/* Enable breakpoints and delete when hit. Called with ARG == NULL
deletes all breakpoints. */
have been inlined. */
extern int pc_at_non_inline_function (struct address_space *aspace,
- CORE_ADDR pc);
+ CORE_ADDR pc,
+ const struct target_waitstatus *ws);
extern int user_breakpoint_p (struct breakpoint *);
/* Attempt to determine architecture of location identified by SAL. */
extern struct gdbarch *get_sal_arch (struct symtab_and_line sal);
+extern void handle_solib_event (void);
+
#endif /* !defined (BREAKPOINT_H) */
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