/* 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 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"
+#include "command.h"
struct value;
struct block;
-
-/* 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 size
- arrays that should be independent of the target architecture. */
+struct breakpoint_object;
+struct get_number_or_range_state;
+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
+ size arrays that should be independent of the target
+ architecture. */
#define BREAKPOINT_MAX 16
\f
-/* Type of breakpoint. */
-/* FIXME In the future, we should fold all other breakpoint-like things into
- here. This includes:
- * single-step (for machines where we have to simulate single stepping)
- (probably, though perhaps it is better for it to look as much as
- possible like a single-step to wait_for_inferior). */
+/* Type of breakpoint. */
+/* FIXME In the future, we should fold all other breakpoint-like
+ things into here. This includes:
+
+ * single-step (for machines where we have to simulate single
+ stepping) (probably, though perhaps it is better for it to look as
+ much as possible like a single-step to wait_for_inferior). */
enum bptype
{
- bp_none = 0, /* Eventpoint has been deleted. */
+ bp_none = 0, /* Eventpoint has been deleted */
bp_breakpoint, /* Normal breakpoint */
bp_hardware_breakpoint, /* Hardware assisted breakpoint */
bp_until, /* used by until command */
bp_longjmp, /* secret breakpoint to find longjmp() */
bp_longjmp_resume, /* secret breakpoint to escape longjmp() */
- /* Used by wait_for_inferior for stepping over subroutine calls, for
- stepping over signal handlers, and for skipping prologues. */
+ /* An internal breakpoint that is installed on the unwinder's
+ debug hook. */
+ bp_exception,
+ /* An internal breakpoint that is set at the point where an
+ exception will land. */
+ bp_exception_resume,
+
+ /* Used by wait_for_inferior for stepping over subroutine calls,
+ and for skipping prologues. */
bp_step_resume,
+ /* Used by wait_for_inferior for stepping over signal
+ handlers. */
+ bp_hp_step_resume,
+
/* Used to detect when a watchpoint expression has gone out of
scope. These breakpoints are usually not visible to the user.
bp_watchpoint_scope,
/* The breakpoint at the end of a call dummy. */
- /* FIXME: What if the function we are calling longjmp()s out of the
- call, or the user gets out with the "return" command? We currently
- have no way of cleaning up the breakpoint in these (obscure) situations.
- (Probably can solve this by noticing longjmp, "return", etc., it's
- similar to noticing when a watchpoint on a local variable goes out
- of scope (with hardware support for watchpoints)). */
+ /* FIXME: What if the function we are calling longjmp()s out of
+ the call, or the user gets out with the "return" command? We
+ currently have no way of cleaning up the breakpoint in these
+ (obscure) situations. (Probably can solve this by noticing
+ longjmp, "return", etc., it's similar to noticing when a
+ watchpoint on a local variable goes out of scope (with hardware
+ support for watchpoints)). */
bp_call_dummy,
+ /* A breakpoint set on std::terminate, that is used to catch
+ otherwise uncaught exceptions thrown during an inferior call. */
+ bp_std_terminate,
+
/* Some dynamic linkers (HP, maybe Solaris) can arrange for special
code in the inferior to run when significant events occur in the
dynamic linker (for example a library is loaded or unloaded).
bp_longjmp_master,
+ /* Master copies of std::terminate breakpoints. */
+ bp_std_terminate_master,
+
+ /* Like bp_longjmp_master, but for exceptions. */
+ bp_exception_master,
+
bp_catchpoint,
bp_tracepoint,
+ 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,
+
+ /* Breakpoint is placed at the STT_GNU_IFUNC resolver. When hit GDB
+ inserts new bp_gnu_ifunc_resolver_return at the caller.
+ bp_gnu_ifunc_resolver is still being kept here as a different thread
+ may still hit it before bp_gnu_ifunc_resolver_return is hit by the
+ original thread. */
+ bp_gnu_ifunc_resolver,
+
+ /* On its hit GDB now know the resolved address of the target
+ STT_GNU_IFUNC function. Associated bp_gnu_ifunc_resolver can be
+ deleted now and the breakpoint moved to the target function entry
+ point. */
+ bp_gnu_ifunc_resolver_return,
};
-/* States of enablement of breakpoint. */
+/* States of enablement of breakpoint. */
enum enable_state
{
- bp_disabled, /* The eventpoint is inactive, and cannot trigger. */
- bp_enabled, /* The eventpoint is active, and can trigger. */
- bp_call_disabled, /* The eventpoint has been disabled while a call
- into the inferior is "in flight", because some
- eventpoints interfere with the implementation of
- a call on some targets. The eventpoint will be
- automatically enabled and reset when the call
- "lands" (either completes, or stops at another
- eventpoint). */
- bp_startup_disabled,/* The eventpoint has been disabled during inferior
- startup. This is necessary on some targets where
- the main executable will get relocated during
- startup, making breakpoint addresses invalid.
- The eventpoint will be automatically enabled and
- reset once inferior startup is complete. */
- bp_permanent /* 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
- SKIP_INSN macro. */
+ bp_disabled, /* The eventpoint is inactive, and cannot
+ trigger. */
+ bp_enabled, /* The eventpoint is active, and can
+ trigger. */
+ bp_call_disabled, /* The eventpoint has been disabled while a
+ call into the inferior is "in flight",
+ because some eventpoints interfere with
+ the implementation of a call on some
+ targets. The eventpoint will be
+ automatically enabled and reset when the
+ call "lands" (either completes, or stops
+ at another eventpoint). */
+ bp_permanent /* 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 SKIP_INSN macro. */
};
-/* Disposition of breakpoint. Ie: what to do after hitting it. */
+/* Disposition of breakpoint. Ie: what to do after hitting it. */
enum bpdisp
{
disp_del, /* Delete it */
- disp_del_at_next_stop, /* Delete at next stop, whether hit or not */
+ disp_del_at_next_stop, /* Delete at next stop,
+ whether hit or not */
disp_disable, /* Disable it */
disp_donttouch /* Leave it alone */
};
};
+/* 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
{
+ /* Address space at which the breakpoint was placed. */
+ struct address_space *placed_address_space;
+
/* Address at which the breakpoint was placed. This is normally the
same as ADDRESS from the bp_location, except when adjustment
happens in gdbarch_breakpoint_from_pc. The most common form of
is used to determine the type of breakpoint to insert. */
CORE_ADDR placed_address;
+ /* If this is a ranged breakpoint, then this field contains the
+ length of the range that will be watched for execution. */
+ int length;
+
/* If the breakpoint lives in memory and reading that memory would
give back the breakpoint, instead of the original contents, then
the original contents are cached here. Only SHADOW_LEN bytes of
int shadow_len;
/* The size of the placed breakpoint, according to
- gdbarch_breakpoint_from_pc, when the breakpoint was inserted. This is
- generally the same as SHADOW_LEN, unless we did not need
+ gdbarch_breakpoint_from_pc, when the breakpoint was inserted.
+ This is generally the same as SHADOW_LEN, unless we did not need
to read from the target to implement the memory breakpoint
- (e.g. if a remote stub handled the details). We may still
- need the size to remove the breakpoint safely. */
+ (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
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;
- /* Pointer to the next breakpoint location, in a global
- list of all breakpoint locations. */
- struct bp_location *global_next;
-
+ /* Methods associated with this location. */
+ const struct bp_location_ops *ops;
+
+ /* The reference count. */
+ int refc;
+
/* Type of this breakpoint location. */
enum bp_loc_type loc_type;
/* Each breakpoint location must belong to exactly one higher-level
- breakpoint. This and the DUPLICATE flag are more straightforward
- than reference counting. */
+ breakpoint. This pointer is NULL iff this bp_location is no
+ longer attached to a breakpoint. For example, when a breakpoint
+ is deleted, its locations may still be found in the
+ moribund_locations list, or if we had stopped for it, in
+ bpstats. */
struct breakpoint *owner;
- /* Conditional. Break only if this expression's value is nonzero.
- Unlike string form of condition, which is associated with breakpoint,
- this is associated with location, since if breakpoint has several
- locations, the evaluation of expression can be different for
- different locations. */
+ /* Conditional. Break only if this expression's value is nonzero.
+ Unlike string form of condition, which is associated with
+ breakpoint, this is associated with location, since if breakpoint
+ has several locations, the evaluation of expression can be
+ different for different locations. Only valid for real
+ breakpoints; a watchpoint's conditional expression is stored in
+ 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. */
char inserted;
/* Nonzero if this is not the first breakpoint in the list
- for the given address. */
+ 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
+ address may have different actions, so both of these locations
+ should be downloaded and so that `tfind N' always works. */
char duplicate;
/* If we someday support real thread-specific breakpoints, then
different from the breakpoint architecture. */
struct gdbarch *gdbarch;
+ /* The program space associated with this breakpoint location
+ address. Note that an address space may be represented in more
+ than one program space (e.g. each uClinux program will be given
+ its own program space, but there will only be one address space
+ for all of them), but we must not insert more than one location
+ at the same address in the same address space. */
+ struct program_space *pspace;
+
/* Note that zero is a perfectly valid code address on some platforms
(for example, the mn10200 (OBSOLETE) and mn10300 simulators). NULL
is not a special value for this field. Valid for all types except
bp_loc_other. */
CORE_ADDR address;
- /* For hardware watchpoints, the size of data ad ADDRESS being watches. */
+ /* For hardware watchpoints, the size of the memory region being
+ watched. For hardware ranged breakpoints, the size of the
+ breakpoint range. */
int length;
- /* Type of hardware watchpoint. */
+ /* Type of hardware watchpoint. */
enum target_hw_bp_type watchpoint_type;
/* For any breakpoint type with an address, this is the section
- associated with the address. Used primarily for overlay debugging. */
+ associated with the address. Used primarily for overlay
+ debugging. */
struct obj_section *section;
/* Address at which breakpoint was requested, either by the user or
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. */
This variable keeps a number of events still to go, when
it becomes 0 this location is retired. */
int events_till_retirement;
+
+ /* Line number of this address. */
+
+ int line_number;
+
+ /* Source file name of this address. */
+
+ char *source_file;
};
/* This structure is a collection of function pointers that, if available,
will be called instead of the performing the default action for this
bptype. */
-struct breakpoint_ops
+struct breakpoint_ops
{
- /* Insert the breakpoint or activate the catchpoint. Should raise
- an exception if the operation failed. */
- void (*insert) (struct breakpoint *);
+ /* Destructor. Releases everything from SELF (but not SELF
+ itself). */
+ void (*dtor) (struct breakpoint *self);
- /* Remove the breakpoint/catchpoint that was previously inserted
- with the "insert" method above. Return non-zero if the operation
- succeeded. */
- int (*remove) (struct breakpoint *);
+ /* Allocate a location for this breakpoint. */
+ struct bp_location * (*allocate_location) (struct breakpoint *);
- /* Return non-zero if the debugger should tell the user that this
- breakpoint was hit. */
- int (*breakpoint_hit) (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. */
+ int (*insert_location) (struct bp_location *);
+
+ /* Remove the breakpoint/catchpoint that was previously inserted
+ with the "insert" method above. Return 0 for success, 1 if the
+ breakpoint, watchpoint or catchpoint type is not supported,
+ -1 for failure. */
+ int (*remove_location) (struct bp_location *);
+
+ /* 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. 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. */
+ 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. */
+ int (*resources_needed) (const struct bp_location *);
+
+ /* Tell whether we can downgrade from a hardware watchpoint to a software
+ one. If not, the user will not be able to enable the watchpoint when
+ there are not enough hardware resources available. */
+ int (*works_in_software_mode) (const struct breakpoint *);
/* The normal print routine for this breakpoint, called when we
hit it. */
- enum print_stop_action (*print_it) (struct breakpoint *);
+ enum print_stop_action (*print_it) (struct bpstats *bs);
- /* Display information about this breakpoint, for "info breakpoints". */
+ /* Display information about this breakpoint, for "info
+ breakpoints". */
void (*print_one) (struct breakpoint *, struct bp_location **);
- /* Display information about this breakpoint after setting it (roughly
- speaking; this is called from "mention"). */
+ /* Display extra information about this breakpoint, below the normal
+ breakpoint description in "info breakpoints".
+
+ In the example below, the "address range" line was printed
+ by print_one_detail_ranged_breakpoint.
+
+ (gdb) info breakpoints
+ Num Type Disp Enb Address What
+ 2 hw breakpoint keep y in main at test-watch.c:70
+ address range: [0x10000458, 0x100004c7]
+
+ */
+ void (*print_one_detail) (const struct breakpoint *, struct ui_out *);
+
+ /* Display information about this breakpoint after setting it
+ (roughly speaking; this is called from "mention"). */
void (*print_mention) (struct breakpoint *);
+
+ /* 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
+ the "thread" or "task" condition of B, and then a newline.
+
+ Necessary because most breakpoint implementations accept
+ thread/task conditions at the end of the spec line, like "break foo
+ thread 1", which needs outputting before any breakpoint-type
+ specific extra command necessary for B's recreation. */
+extern void print_recreate_thread (struct breakpoint *b, struct ui_file *fp);
+
enum watchpoint_triggered
{
/* This watchpoint definitely did not trigger. */
typedef struct bp_location *bp_location_p;
DEF_VEC_P(bp_location_p);
+/* A reference-counted struct command_line. This lets multiple
+ breakpoints share a single command list. This is an implementation
+ detail to the breakpoints module. */
+struct 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
+ modify a memory location happen at its starting address. */
+
+extern int 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
does set it to 0). I implemented it because I thought it would be
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. */
+ const struct breakpoint_ops *ops;
+
struct breakpoint *next;
- /* Type of breakpoint. */
+ /* Type of breakpoint. */
enum bptype type;
/* Zero means disabled; remember the info but don't break here. */
enum enable_state enable_state;
- /* What to do with this breakpoint after we hit it. */
+ /* What to do with this breakpoint after we hit it. */
enum bpdisp disposition;
/* Number assigned to distinguish breakpoints. */
int number;
/* Location(s) associated with this high-level breakpoint. */
struct bp_location *loc;
- /* Line number of this address. */
-
- int line_number;
-
- /* Source file name of this address. */
-
- char *source_file;
-
/* Non-zero means a silent breakpoint (don't print frame info
- if we stop here). */
+ if we stop here). */
unsigned char silent;
+ /* Non-zero means display ADDR_STRING to the user verbatim. */
+ unsigned char display_canonical;
/* Number of stops at this breakpoint that should
be continued automatically before really stopping. */
int ignore_count;
- /* Chain of command lines to execute when this breakpoint is hit. */
- struct command_line *commands;
+
+ /* 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;
/* Stack depth (address of frame). If nonzero, break only if fp
equals this. */
struct frame_id frame_id;
+ /* The program space used to set the breakpoint. This is only set
+ for breakpoints which are specific to a program space; for
+ non-thread-specific ordinary breakpoints this is NULL. */
+ struct program_space *pspace;
+
/* String we used to set the breakpoint (malloc'd). */
char *addr_string;
+
+ /* 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;
+
+ /* For a ranged breakpoint, the string we used to find
+ the end of the range (malloc'd). */
+ char *addr_string_range_end;
+
/* Architecture we used to set the breakpoint. */
struct gdbarch *gdbarch;
/* Language we used to set the breakpoint. */
enum language language;
/* Input radix we used to set the breakpoint. */
int input_radix;
- /* String form of the breakpoint condition (malloc'd), or NULL if there
- is no condition. */
+ /* String form of the breakpoint condition (malloc'd), or NULL if
+ there is no condition. */
char *cond_string;
- /* String form of exp (malloc'd), or NULL if none. */
- char *exp_string;
-
- /* 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;
- /* 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;
+
+ /* 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 a related breakpoint be useful elsewhere, if not just call
- it the watchpoint_scope breakpoint or something like that. FIXME). */
+ when using watchpoints on local variables (might the concept of
+ a related breakpoint be useful elsewhere, if not just call it
+ the watchpoint_scope breakpoint or something like that.
+ 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;
-
- /* 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. */
+ /* Thread number for thread-specific breakpoint,
+ or -1 if don't care. */
int thread;
- /* Ada task number for task-specific breakpoint, or 0 if don't care. */
+ /* Ada task number for task-specific breakpoint,
+ or 0 if don't care. */
int task;
/* Count of the number of times this breakpoint was taken, dumped
aborting, so you can back up to just before the abort. */
int hit_count;
- /* Process id of a child process whose forking triggered this
- catchpoint. This field is only valid immediately after this
- catchpoint has triggered. */
- ptid_t forked_inferior_pid;
-
- /* Filename of a program whose exec triggered this catchpoint.
- This field is only valid immediately after this catchpoint has
- triggered. */
- char *exec_pathname;
-
- /* 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. */
int condition_not_parsed;
- /* Number of times this tracepoint should single-step
- and collect additional data. */
- long step_count;
+ /* With a Python scripting enabled GDB, store a reference to the
+ Python object that has been associated with this breakpoint.
+ This is always NULL for a GDB that is not script enabled. It
+ 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;
+ };
- /* Number of times this tracepoint should be hit before
- disabling/ending. */
- int pass_count;
+/* 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. */
- /* Chain of action lines to execute when this tracepoint is hit. */
- struct action_line *actions;
- };
+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;
+};
+
+/* 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);
+
+/* An instance of this type is used to represent all kinds of
+ tracepoints. It includes a "struct breakpoint" as a kind of base
+ class; users downcast to "struct breakpoint *" when needed. */
+
+struct tracepoint
+{
+ /* The base class. */
+ struct breakpoint base;
+
+ /* Number of times this tracepoint should single-step and collect
+ additional data. */
+ long step_count;
+
+ /* Number of times this tracepoint should be hit before
+ disabling/ending. */
+ int pass_count;
+
+ /* The number of the tracepoint on the target. */
+ int number_on_target;
+
+ /* The total space taken by all the trace frames for this
+ tracepoint. */
+ ULONGEST traceframe_usage;
+
+ /* The static tracepoint marker id, if known. */
+ char *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
+ static tracepoints by marker ID, this will record the index in
+ the array of markers we found for the given marker ID for which
+ this static tracepoint corresponds. When resetting breakpoints,
+ we will use this index to try to find the same marker again. */
+ int static_trace_marker_id_idx;
+};
typedef struct breakpoint *breakpoint_p;
DEF_VEC_P(breakpoint_p);
typedef struct bpstats *bpstat;
-/* Frees any storage that is part of a bpstat.
- Does not walk the 'next' chain. */
-extern void bpstat_free (bpstat);
-
/* Clears a chain of bpstat, freeing storage
of each. */
extern void bpstat_clear (bpstat *);
is part of the bpstat is copied as well. */
extern bpstat bpstat_copy (bpstat);
-extern bpstat bpstat_stop_status (CORE_ADDR pc, ptid_t ptid);
+extern bpstat bpstat_stop_status (struct address_space *aspace,
+ 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). */
+ breakpoint (a challenging task).
+
+ The enum values order defines priority-like order of the actions.
+ Once you've decided that some action is appropriate, you'll never
+ go back and decide something of a lower priority is better. Each
+ of these actions is mutually exclusive with the others. That
+ means, that if you find yourself adding a new action class here and
+ wanting to tell GDB that you have two simultaneous actions to
+ handle, something is wrong, and you probably don't actually need a
+ new action type.
+
+ Note that a step resume breakpoint overrides another breakpoint of
+ signal handling (see comment in wait_for_inferior at where we set
+ the step_resume breakpoint). */
enum bpstat_what_main_action
{
else). */
BPSTAT_WHAT_KEEP_CHECKING,
- /* Rather than distinguish between noisy and silent stops here, it
- might be cleaner to have bpstat_print make that decision (also
- taking into account stop_print_frame and source_only). But the
- implications are a bit scary (interaction with auto-displays, etc.),
- so I won't try it. */
-
- /* Stop silently. */
- BPSTAT_WHAT_STOP_SILENT,
-
- /* Stop and print. */
- BPSTAT_WHAT_STOP_NOISY,
-
/* Remove breakpoints, single step once, then put them back in and
- go back to what we were doing. It's possible that this should be
- removed from the main_action and put into a separate field, to more
- cleanly handle BPSTAT_WHAT_CLEAR_LONGJMP_RESUME_SINGLE. */
+ go back to what we were doing. It's possible that this should
+ be removed from the main_action and put into a separate field,
+ to more cleanly handle
+ BPSTAT_WHAT_CLEAR_LONGJMP_RESUME_SINGLE. */
BPSTAT_WHAT_SINGLE,
/* Set longjmp_resume breakpoint, remove all other breakpoints,
- and continue. The "remove all other breakpoints" part is required
- if we are also stepping over another breakpoint as well as doing
- the longjmp handling. */
+ and continue. The "remove all other breakpoints" part is
+ required if we are also stepping over another breakpoint as
+ well as doing the longjmp handling. */
BPSTAT_WHAT_SET_LONGJMP_RESUME,
/* Clear longjmp_resume breakpoint, then handle as
/* Clear step resume breakpoint, and keep checking. */
BPSTAT_WHAT_STEP_RESUME,
- /* Check the dynamic linker's data structures for new libraries, then
- keep checking. */
- BPSTAT_WHAT_CHECK_SHLIBS,
+ /* Rather than distinguish between noisy and silent stops here, it
+ might be cleaner to have bpstat_print make that decision (also
+ taking into account stop_print_frame and source_only). But the
+ implications are a bit scary (interaction with auto-displays,
+ etc.), so I won't try it. */
+
+ /* Stop silently. */
+ BPSTAT_WHAT_STOP_SILENT,
+
+ /* Stop and print. */
+ BPSTAT_WHAT_STOP_NOISY,
+
+ /* Clear step resume breakpoint, and keep checking. High-priority
+ step-resume breakpoints are used when even if there's a user
+ breakpoint at the current PC when we set the step-resume
+ breakpoint, we don't want to re-handle any breakpoint other
+ than the step-resume when it's hit; instead we want to move
+ past the breakpoint. This is used in the case of skipping
+ signal handlers. */
+ BPSTAT_WHAT_HP_STEP_RESUME,
+ };
+
+/* An enum indicating the kind of "stack dummy" stop. This is a bit
+ of a misnomer because only one kind of truly a stack dummy. */
+enum stop_stack_kind
+ {
+ /* We didn't stop at a stack dummy breakpoint. */
+ STOP_NONE = 0,
+
+ /* Stopped at a stack dummy. */
+ STOP_STACK_DUMMY,
- /* This is just used to keep track of how many enums there are. */
- BPSTAT_WHAT_LAST
+ /* Stopped at std::terminate. */
+ STOP_STD_TERMINATE
};
struct bpstat_what
{
enum bpstat_what_main_action main_action;
- /* Did we hit a call dummy breakpoint? This only goes with a main_action
- of BPSTAT_WHAT_STOP_SILENT or BPSTAT_WHAT_STOP_NOISY (the concept of
- continuing from a call dummy without popping the frame is not a
- useful one). */
- int call_dummy;
+ /* Did we hit a call dummy breakpoint? This only goes with a
+ main_action of BPSTAT_WHAT_STOP_SILENT or
+ BPSTAT_WHAT_STOP_NOISY (the concept of continuing from a call
+ dummy without popping the frame is not a useful one). */
+ enum stop_stack_kind call_dummy;
+
+ /* 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;
};
/* The possible return values for print_bpstat, print_it_normal,
- print_it_done, print_it_noop. */
+ print_it_done, print_it_noop. */
enum print_stop_action
{
+ /* We printed nothing or we need to do some more analysis. */
PRINT_UNKNOWN = -1,
+
+ /* We printed something, and we *do* desire that something to be
+ followed by a location. */
PRINT_SRC_AND_LOC,
+
+ /* We printed something, and we do *not* desire that something to
+ be followed by a location. */
PRINT_SRC_ONLY,
+
+ /* We already printed all we needed to print, don't print anything
+ else. */
PRINT_NOTHING
};
/* Tell what to do about this bpstat. */
struct bpstat_what bpstat_what (bpstat);
\f
-/* Find the bpstat associated with a breakpoint. NULL otherwise. */
+/* Find the bpstat associated with a breakpoint. NULL otherwise. */
bpstat bpstat_find_breakpoint (bpstat, struct breakpoint *);
-/* Find a step_resume breakpoint associated with this bpstat.
- (If there are multiple step_resume bp's on the list, this function
- will arbitrarily pick one.)
-
- It is an error to use this function if BPSTAT doesn't contain a
- step_resume breakpoint.
-
- See wait_for_inferior's use of this function.
- */
-extern struct breakpoint *bpstat_find_step_resume_breakpoint (bpstat);
-
/* Nonzero if a signal that we got in wait() was due to circumstances
explained by the BS. */
/* Currently that is true if we have hit a breakpoint, or if there is
a watchpoint enabled. */
#define bpstat_explains_signal(bs) ((bs) != NULL)
+/* Nonzero is this bpstat causes a stop. */
+extern int bpstat_causes_stop (bpstat);
+
/* Nonzero 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. */
/* Print a message indicating what happened. Returns nonzero to
say that only the source line should be printed after this (zero
return means print the frame as well as the source line). */
-extern enum print_stop_action bpstat_print (bpstat);
+extern enum print_stop_action bpstat_print (bpstat, int);
+
+/* Put in *NUM the breakpoint number of the first breakpoint we are
+ stopped at. *BSP upon return is a bpstat which points to the
+ remaining breakpoints stopped at (but which is not guaranteed to be
+ good for anything but further calls to bpstat_num).
-/* Put in *NUM the breakpoint number of the first breakpoint we are stopped
- at. *BSP upon return is a bpstat which points to the remaining
- breakpoints stopped at (but which is not guaranteed to be good for
- anything but further calls to bpstat_num).
Return 0 if passed a bpstat which does not indicate any breakpoints.
Return -1 if stopped at a breakpoint that has been deleted since
we set it.
command loop). */
extern void bpstat_do_actions (void);
-/* Modify BS so that the actions will not be performed. */
-extern void bpstat_clear_actions (bpstat);
+/* Modify all entries of STOP_BPSTAT of INFERIOR_PTID so that the actions will
+ not be performed. */
+extern void bpstat_clear_actions (void);
/* Implementation: */
-/* Values used to tell the printing routine how to behave for this bpstat. */
+/* Values used to tell the printing routine how to behave for this
+ bpstat. */
enum bp_print_how
{
/* This is used when we want to do a normal printing of the reason
- for stopping. The output will depend on the type of eventpoint
- we are dealing with. This is the default value, most commonly
- used. */
+ for stopping. The output will depend on the type of eventpoint
+ we are dealing with. This is the default value, most commonly
+ used. */
print_it_normal,
- /* This is used when nothing should be printed for this bpstat entry. */
+ /* This is used when nothing should be printed for this bpstat
+ entry. */
print_it_noop,
/* This is used when everything which needs to be printed has
already been printed. But we still want to print the frame. */
struct bpstats
{
- /* Linked list because there can be two breakpoints at the same
- place, and a bpstat reflects the fact that both have been hit. */
+ /* Linked list because there can be more than one breakpoint at
+ the same place, and a bpstat reflects the fact that all have
+ been hit. */
bpstat next;
- /* Breakpoint that we are at. */
- const struct bp_location *breakpoint_at;
- /* Commands left to be done. */
- struct command_line *commands;
+
+ /* Location that caused the stop. Locations are refcounted, so
+ this will never be NULL. Note that this location may end up
+ detached from a breakpoint, but that does not necessary mean
+ that the struct breakpoint is gone. E.g., consider a
+ watchpoint with a condition that involves an inferior function
+ call. Watchpoint locations are recreated often (on resumes,
+ hence on infcalls too). Between creating the bpstat and after
+ evaluating the watchpoint condition, this location may hence
+ end up detached from its original owner watchpoint, even though
+ the watchpoint is still listed. If it's condition evaluates as
+ true, we still want this location to cause a stop, and we will
+ still need to know which watchpoint it was originally attached.
+ What this means is that we should not (in most cases) follow
+ the `bpstat->bp_location->owner' link, but instead use the
+ `breakpoint_at' field below. */
+ struct bp_location *bp_location_at;
+
+ /* Breakpoint that caused the stop. This is nullified if the
+ breakpoint ends up being deleted. See comments on
+ `bp_location_at' above for why do we need this field instead of
+ following the location's owner. */
+ struct breakpoint *breakpoint_at;
+
+ /* The associated command list. */
+ struct counted_command_line *commands;
+
/* Old value associated with a watchpoint. */
struct value *old_val;
/* Prototypes for breakpoint-related functions. */
-extern enum breakpoint_here breakpoint_here_p (CORE_ADDR);
+extern enum breakpoint_here breakpoint_here_p (struct address_space *,
+ CORE_ADDR);
+
+extern int moribund_breakpoint_here_p (struct address_space *, CORE_ADDR);
-extern int moribund_breakpoint_here_p (CORE_ADDR);
+extern int breakpoint_inserted_here_p (struct address_space *, CORE_ADDR);
-extern int breakpoint_inserted_here_p (CORE_ADDR);
+extern int regular_breakpoint_inserted_here_p (struct address_space *,
+ CORE_ADDR);
-extern int regular_breakpoint_inserted_here_p (CORE_ADDR);
+extern int software_breakpoint_inserted_here_p (struct address_space *,
+ CORE_ADDR);
-extern int software_breakpoint_inserted_here_p (CORE_ADDR);
+/* Returns true if there's a hardware watchpoint or access watchpoint
+ inserted in the range defined by ADDR and LEN. */
+extern int hardware_watchpoint_inserted_in_range (struct address_space *,
+ CORE_ADDR addr,
+ ULONGEST len);
-extern int breakpoint_thread_match (CORE_ADDR, ptid_t);
+extern int breakpoint_thread_match (struct address_space *,
+ CORE_ADDR, ptid_t);
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);
+
extern void breakpoint_re_set (void);
extern void breakpoint_re_set_thread (struct breakpoint *);
extern void set_ignore_count (int, int, int);
-extern void set_default_breakpoint (int, CORE_ADDR, struct symtab *, int);
-
extern void breakpoint_init_inferior (enum inf_context);
extern struct cleanup *make_cleanup_delete_breakpoint (struct breakpoint *);
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);
+
+/* Return a string image of DISP. The string is static, and thus should
+ NOT be deallocated after use. */
+const char *bpdisp_text (enum bpdisp disp);
+
extern void break_command (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 watch_command_wrapper (char *, int);
-extern void awatch_command_wrapper (char *, int);
-extern void rwatch_command_wrapper (char *, int);
+extern void watch_command_wrapper (char *, int, int);
+extern void awatch_command_wrapper (char *, int, int);
+extern void rwatch_command_wrapper (char *, int, int);
extern void tbreak_command (char *, int);
-extern void set_breakpoint (struct gdbarch *gdbarch,
- char *address, char *condition,
- int hardwareflag, int tempflag,
- int thread, int ignore_count,
- int pending,
- int enabled);
+extern struct breakpoint_ops bkpt_breakpoint_ops;
+
+extern void initialize_breakpoint_ops (void);
+
+/* Arguments to pass as context to some catch command handlers. */
+#define CATCH_PERMANENT ((void *) (uintptr_t) 0)
+#define CATCH_TEMPORARY ((void *) (uintptr_t) 1)
+
+/* Like add_cmd, but add the command to both the "catch" and "tcatch"
+ lists, and pass some additional user data to the command
+ function. */
+
+extern void
+ add_catch_command (char *name, char *docstring,
+ void (*sfunc) (char *args, int from_tty,
+ struct cmd_list_element *command),
+ completer_ftype *completer,
+ void *user_data_catch,
+ void *user_data_tcatch);
+
+/* Initialize a breakpoint struct for Ada exception catchpoints. */
+
+extern void
+ init_ada_exception_breakpoint (struct breakpoint *b,
+ struct gdbarch *gdbarch,
+ struct symtab_and_line sal,
+ char *addr_string,
+ const 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. If
+ INTERNAL is non-zero, the breakpoint number will be allocated from
+ the internal breakpoint count. If UPDATE_GLL is non-zero,
+ update_global_location_list will be called. */
+
+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,
+ enum auto_boolean pending_break_support,
+ const struct breakpoint_ops *ops,
+ int from_tty,
+ int enabled,
+ int internal, unsigned flags);
extern void insert_breakpoints (void);
extern int remove_breakpoints (void);
+extern int remove_breakpoints_pid (int pid);
+
/* This function can be used to physically insert eventpoints from the
specified traced inferior process, without modifying the breakpoint
- package's state. This can be useful for those targets which support
- following the processes of a fork() or vfork() system call, when both
- of the resulting two processes are to be followed. */
+ package's state. This can be useful for those targets which
+ support following the processes of a fork() or vfork() system call,
+ when both of the resulting two processes are to be followed. */
extern int reattach_breakpoints (int);
/* This function can be used to update the breakpoint package's state
- A step-resume breakpoint, if any, is explicitly removed from the
breakpoint list.
- All eventpoints without a symbolic address are removed from the
- breakpoint list. */
+ breakpoint list. */
extern void update_breakpoints_after_exec (void);
/* This function can be used to physically remove hardware breakpoints
inferior_ptid. */
extern int detach_breakpoints (int);
-extern void set_longjmp_breakpoint (int thread);
+/* This function is called when program space PSPACE is about to be
+ deleted. It takes care of updating breakpoints to not reference
+ this PSPACE anymore. */
+extern void breakpoint_program_space_exit (struct program_space *pspace);
+
+extern void set_longjmp_breakpoint (struct thread_info *tp,
+ 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 set_std_terminate_breakpoint (void);
+extern void delete_std_terminate_breakpoint (void);
+
/* These functions respectively disable or reenable all currently
enabled watchpoints. When disabled, the watchpoints are marked
- call_disabled. When reenabled, they are marked enabled.
+ call_disabled. When re-enabled, they are marked enabled.
The intended client of these functions is call_function_by_hand.
and that can cause execution control to become very confused.
Note that if a user sets breakpoints in an interactively called
- function, the call_disabled watchpoints will have been reenabled
+ function, the call_disabled watchpoints will have been re-enabled
when the first such breakpoint is reached. However, on targets
that are unable to unwind through the call dummy frame, watches
of stack-based storage may then be deleted, because gdb will
extern void enable_breakpoints_after_startup (void);
/* For script interpreters that need to define breakpoint commands
- after they've already read the commands into a struct command_line. */
+ after they've already read the commands into a struct
+ command_line. */
extern enum command_control_type commands_from_control_command
(char *arg, struct command_line *cmd);
extern void clear_breakpoint_hit_counts (void);
-extern int get_number (char **);
+extern struct breakpoint *get_breakpoint (int num);
-extern int get_number_or_range (char **);
-
-/* The following are for displays, which aren't really breakpoints, but
- here is as good a place as any for them. */
+/* The following are for displays, which aren't really breakpoints,
+ but here is as good a place as any for them. */
extern void disable_current_display (void);
extern void enable_breakpoint (struct breakpoint *);
+extern void breakpoint_set_commands (struct breakpoint *b,
+ struct command_line *commands);
+
+extern void breakpoint_set_silent (struct breakpoint *b, int silent);
+
+extern void breakpoint_set_thread (struct breakpoint *b, int thread);
+
+extern void breakpoint_set_task (struct breakpoint *b, int task);
+
/* Clear the "inserted" flag in all breakpoints. */
extern void mark_breakpoints_out (void);
extern void make_breakpoint_permanent (struct breakpoint *);
+extern struct breakpoint *create_jit_event_breakpoint (struct gdbarch *,
+ CORE_ADDR);
+
extern struct breakpoint *create_solib_event_breakpoint (struct gdbarch *,
CORE_ADDR);
extern struct breakpoint *create_thread_event_breakpoint (struct gdbarch *,
CORE_ADDR);
+extern void remove_jit_event_breakpoints (void);
+
extern void remove_solib_event_breakpoints (void);
extern void remove_thread_event_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 *);
+/* This function returns TRUE if ep is a catchpoint. */
+extern int is_catchpoint (struct breakpoint *);
/* Enable breakpoints and delete when hit. Called with ARG == NULL
- deletes all breakpoints. */
+ deletes all breakpoints. */
extern void delete_command (char *arg, int from_tty);
-/* Pull all H/W watchpoints from the target. Return non-zero if the
- remove fails. */
-extern int remove_hw_watchpoints (void);
-
-/* Manage a software single step breakpoint (or two). Insert may be called
- twice before remove is called. */
-extern void insert_single_step_breakpoint (struct gdbarch *, CORE_ADDR);
+/* Manage a software single step breakpoint (or two). Insert may be
+ called twice before remove is called. */
+extern void insert_single_step_breakpoint (struct gdbarch *,
+ struct address_space *,
+ CORE_ADDR);
+extern int single_step_breakpoints_inserted (void);
extern void remove_single_step_breakpoints (void);
+extern void cancel_single_step_breakpoints (void);
/* Manage manual breakpoints, separate from the normal chain of
breakpoints. These functions are used in murky target-specific
ways. Please do not add more uses! */
-extern void *deprecated_insert_raw_breakpoint (struct gdbarch *, CORE_ADDR);
+extern void *deprecated_insert_raw_breakpoint (struct gdbarch *,
+ struct address_space *,
+ CORE_ADDR);
extern int deprecated_remove_raw_breakpoint (struct gdbarch *, void *);
/* Check if any hardware watchpoints have triggered, according to the
target. */
int watchpoints_triggered (struct target_waitstatus *);
-/* Update BUF, which is LEN bytes read from the target address MEMADDR,
- by replacing any memory breakpoints with their shadowed contents. */
-void breakpoint_restore_shadows (gdb_byte *buf, ULONGEST memaddr,
- LONGEST len);
+/* Helper for transparent breakpoint hiding for memory read and write
+ routines.
+
+ Update one of READBUF or WRITEBUF with either the shadows
+ (READBUF), or the breakpoint instructions (WRITEBUF) of inserted
+ breakpoints at the memory range defined by MEMADDR and extending
+ for LEN bytes. If writing, then WRITEBUF is a copy of WRITEBUF_ORG
+ on entry.*/
+extern void breakpoint_xfer_memory (gdb_byte *readbuf, gdb_byte *writebuf,
+ const gdb_byte *writebuf_org,
+ ULONGEST memaddr, LONGEST len);
extern int breakpoints_always_inserted_mode (void);
in our opinion won't ever trigger. */
extern void breakpoint_retire_moribund (void);
-/* Tell a breakpoint to be quiet. */
-extern void make_breakpoint_silent (struct breakpoint *);
+/* Set break condition of breakpoint B to EXP. */
+extern void set_breakpoint_condition (struct breakpoint *b, char *exp,
+ int from_tty);
+
+/* Checks if we are catching syscalls or not.
+ Returns 0 if not, greater than 0 if we are. */
+extern int catch_syscall_enabled (void);
+
+/* Checks if we are catching syscalls with the specific
+ syscall_number. Used for "filtering" the catchpoints.
+ Returns 0 if not, greater than 0 if we are. */
+extern int catching_syscall_number (int syscall_number);
/* Return a tracepoint with the given number if found. */
-extern struct breakpoint *get_tracepoint (int num);
+extern struct tracepoint *get_tracepoint (int num);
+
+extern struct tracepoint *get_tracepoint_by_number_on_target (int num);
/* Find a tracepoint by parsing a number in the supplied string. */
-extern struct breakpoint *get_tracepoint_by_number (char **arg, int multi_p,
- int optional_p);
+extern struct tracepoint *
+ get_tracepoint_by_number (char **arg,
+ struct get_number_or_range_state *state,
+ int optional_p);
/* 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);
+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);
+
+/* 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);
+
+/* 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);
+
+/* Breakpoint iterator function.
+
+ Calls a callback function once for each breakpoint, so long as the
+ callback function returns false. If the callback function returns
+ true, the iteration will end and the current breakpoint will be
+ 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 *);
+
+/* Nonzero if the specified PC cannot be a location where functions
+ have been inlined. */
+
+extern int pc_at_non_inline_function (struct address_space *aspace,
+ 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) */
projects / binutils.git / blobdiff