/* Data structures associated with breakpoints in GDB.
- Copyright (C) 1992-2019 Free Software Foundation, Inc.
+ Copyright (C) 1992-2020 Free Software Foundation, Inc.
This file is part of GDB.
#include "frame.h"
#include "value.h"
-#include "common/vec.h"
#include "ax.h"
#include "command.h"
-#include "common/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 "gdbsupport/function-view.h"
#include "cli/cli-script.h"
struct block;
public:
bp_location () = default;
- bp_location (breakpoint *owner);
+ /* Construct a bp_location with the type inferred from OWNER's
+ type. */
+ explicit bp_location (breakpoint *owner);
+
+ /* Construct a bp_location with type TYPE. */
+ bp_location (breakpoint *owner, bp_loc_type type);
virtual ~bp_location ();
agent_expr_up cmd_bytecode;
/* Signals that breakpoint conditions and/or commands need to be
- re-synched with the target. This has no use other than
+ re-synced with the target. This has no use other than
target-side breakpoints. */
bool needs_update = false;
/* Is this particular location enabled. */
bool enabled = false;
- /* Nonzero if this breakpoint is now inserted. */
+ /* True if this breakpoint is now inserted. */
bool inserted = false;
- /* Nonzero if this is a permanent breakpoint. There is a breakpoint
+ /* True if this is a permanent breakpoint. There is a breakpoint
instruction hard-wired into the target's code. Don't try to
write another breakpoint instruction on top of it, or restore its
value. Step over it using the architecture's
gdbarch_skip_permanent_breakpoint method. */
bool permanent = false;
- /* Nonzero if this is not the first breakpoint in the list
+ /* True if this is not the first breakpoint in the list
for the given address. location of tracepoint can _never_
be duplicated with other locations of tracepoints and other
kinds of breakpoints, because two locations at the same
/* 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
+ only one register per watchpoint, thus assuming that all accesses that
modify a memory location happen at its starting address. */
-extern int target_exact_watchpoints;
+extern bool target_exact_watchpoints;
/* Note that the ->silent field is not currently used by any commands
(though the code is in there if it was to be, and set_raw_breakpoint
event_location_up location;
/* The filter that should be passed to decode_line_full when
- re-setting this breakpoint. This may be NULL, but otherwise is
- allocated with xmalloc. */
- char *filter = NULL;
+ re-setting this breakpoint. This may be NULL. */
+ gdb::unique_xmalloc_ptr<char> filter;
/* For a ranged breakpoint, the location we used to find the end of
the range. */
we do not know the value yet or the value was not readable. VAL
is never lazy. */
value_ref_ptr val;
- /* Nonzero if VAL is valid. If VAL_VALID is set but VAL is NULL,
+
+ /* True if VAL is valid. If VAL_VALID is set but VAL is NULL,
then an error occurred reading the value. */
- int val_valid;
+ bool val_valid;
/* When watching the location of a bitfield, contains the offset and size of
the bitfield. Otherwise contains 0. */
/* Return true if BPT is either a software breakpoint or a hardware
breakpoint. */
-extern int is_breakpoint (const struct breakpoint *bpt);
+extern bool is_breakpoint (const struct breakpoint *bpt);
+
+/* Return true if BPT is of any watchpoint kind, hardware or
+ software. */
-/* Returns true if BPT is really a watchpoint. */
+extern bool is_watchpoint (const struct breakpoint *bpt);
-extern int is_watchpoint (const struct breakpoint *bpt);
+/* Return true if BPT is a C++ exception catchpoint (catch
+ catch/throw/rethrow). */
+
+extern bool is_exception_catchpoint (breakpoint *bp);
/* An instance of this type is used to represent all kinds of
tracepoints. */
/* Used for BPSTAT_WHAT_SET_LONGJMP_RESUME and
BPSTAT_WHAT_CLEAR_LONGJMP_RESUME. True if we are handling a
longjmp, false if we are handling an exception. */
- int is_longjmp;
+ bool is_longjmp;
};
/* Tell what to do about this bpstat. */
/* Find the bpstat associated with a breakpoint. NULL otherwise. */
bpstat bpstat_find_breakpoint (bpstat, struct breakpoint *);
-/* Nonzero if a signal that we got in target_wait() was due to
+/* True if a signal that we got in target_wait() was due to
circumstances explained by the bpstat; the signal is therefore not
random. */
-extern int bpstat_explains_signal (bpstat, enum gdb_signal);
+extern bool bpstat_explains_signal (bpstat, enum gdb_signal);
-/* Nonzero is this bpstat causes a stop. */
-extern int bpstat_causes_stop (bpstat);
+/* True if this bpstat causes a stop. */
+extern bool bpstat_causes_stop (bpstat);
-/* Nonzero if we should step constantly (e.g. watchpoints on machines
+/* True if we should step constantly (e.g. watchpoints on machines
without hardware support). This isn't related to a specific bpstat,
just to things like whether watchpoints are set. */
-extern int bpstat_should_step (void);
+extern bool bpstat_should_step ();
/* Print a message indicating what happened. Returns nonzero to
say that only the source line should be printed after this (zero
/* Prototypes for breakpoint-related functions. */
-/* Return 1 if there's a program/permanent breakpoint planted in
- memory at ADDRESS, return 0 otherwise. */
-
-extern int program_breakpoint_here_p (struct gdbarch *gdbarch, CORE_ADDR address);
-
extern enum breakpoint_here breakpoint_here_p (const address_space *,
CORE_ADDR);
extern void break_command (const 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 install_breakpoint (int internal, std::unique_ptr<breakpoint> &&b,
int update_gll);
+/* Returns the breakpoint ops appropriate for use with with LOCATION and
+ according to IS_TRACEPOINT. Use this to ensure, for example, that you pass
+ the correct ops to create_breakpoint for probe locations. If LOCATION is
+ NULL, returns bkpt_breakpoint_ops (or tracepoint_breakpoint_ops, if
+ IS_TRACEPOINT is true). */
+
+extern const struct breakpoint_ops *breakpoint_ops_for_event_location
+ (const struct event_location *location, bool is_tracepoint);
+
/* Flags that can be passed down to create_breakpoint, etc., to affect
breakpoint creation in several ways. */
extern int remove_breakpoints (void);
-extern int remove_breakpoints_inf (inferior *inf);
+/* 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 disable_breakpoints_in_shlibs (void);
-/* This function returns TRUE if ep is a catchpoint. */
-extern int is_catchpoint (struct breakpoint *);
+/* This function returns true if B is a catchpoint. */
+
+extern bool is_catchpoint (struct breakpoint *b);
/* Shared helper function (MI and CLI) for creating and installing
a shared object event catchpoint. */
/* Return a vector of all tracepoints currently defined. */
extern std::vector<breakpoint *> all_tracepoints (void);
-extern int is_tracepoint (const struct breakpoint *b);
+/* Return true if B is of tracepoint kind. */
+
+extern bool is_tracepoint (const struct breakpoint *b);
/* Return a vector of all static tracepoints defined at ADDR. */
extern std::vector<breakpoint *> static_tracepoints_here (CORE_ADDR addr);
returned. This can be useful for implementing a search for a
breakpoint with arbitrary attributes, or for applying an operation
to every breakpoint. */
-extern struct breakpoint *iterate_over_breakpoints (int (*) (struct breakpoint *,
- void *), void *);
+extern struct breakpoint *iterate_over_breakpoints
+ (gdb::function_view<bool (breakpoint *)>);
/* Nonzero if the specified PC cannot be a location where functions
have been inlined. */
projects / deliverable / binutils-gdb.git / blobdiff