/* Data structures associated with breakpoints in GDB.
- Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
+ Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
2002, 2003, 2004
Free Software Foundation, Inc.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
#if !defined (BREAKPOINT_H)
#define BREAKPOINT_H 1
hw_execute = 3 /* Execute HW breakpoint */
};
+
+/* Information used by targets to insert and remove breakpoints. */
+
+struct bp_target_info
+{
+ /* Address at which the breakpoint was placed. This is normally the
+ same as ADDRESS from the bp_location, except when adjustment
+ happens in BREAKPOINT_FROM_PC. The most common form of
+ adjustment is stripping an alternate ISA marker from the PC which
+ is used to determine the type of breakpoint to insert. */
+ CORE_ADDR placed_address;
+
+ /* 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
+ this buffer are valid, and only when the breakpoint is inserted. */
+ gdb_byte shadow_contents[BREAKPOINT_MAX];
+
+ /* The length of the data cached in SHADOW_CONTENTS. */
+ int shadow_len;
+
+ /* The size of the placed breakpoint, according to
+ 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. */
+ int placed_size;
+};
+
/* GDB maintains two types of information about each breakpoint (or
watchpoint, or other related event). The first type corresponds
to struct breakpoint; this is a relatively high-level structure
associated with the address. Used primarily for overlay debugging. */
asection *section;
- /* "Real" contents of byte where breakpoint has been inserted.
- Valid only when breakpoints are in the program. Under the complete
- control of the target insert_breakpoint and remove_breakpoint routines.
- No other code should assume anything about the value(s) here.
- Valid only for bp_loc_software_breakpoint. */
- char shadow_contents[BREAKPOINT_MAX];
-
/* Address at which breakpoint was requested, either by the user or
by GDB for internal breakpoints. This will usually be the same
as ``address'' (above) except for cases in which
which to place the breakpoint in order to comply with a
processor's architectual constraints. */
CORE_ADDR requested_address;
+
+ /* Details of the placed breakpoint, when inserted. */
+ struct bp_target_info target_info;
+
+ /* Similarly, for the breakpoint at an overlay's LMA, if necessary. */
+ struct bp_target_info overlay_target_info;
};
/* This structure is a collection of function pointers that, if available,
/* Methods associated with this breakpoint. */
struct breakpoint_ops *ops;
+
+ /* Was breakpoint issued from a tty? Saved for the use of pending breakpoints. */
+ int from_tty;
+
+ /* Flag value for pending breakpoint.
+ first bit : 0 non-temporary, 1 temporary.
+ second bit : 0 normal breakpoint, 1 hardware breakpoint. */
+ int flag;
+
+ /* Is breakpoint pending on shlib loads? */
+ int pending;
};
\f
/* The following stuff is an abstract data type "bpstat" ("breakpoint
is part of the bpstat is copied as well. */
extern bpstat bpstat_copy (bpstat);
-extern bpstat bpstat_stop_status (CORE_ADDR *pc, int not_a_sw_breakpoint);
+extern bpstat bpstat_stop_status (CORE_ADDR pc, ptid_t ptid,
+ int stopped_by_watchpoint);
\f
/* This bpstat_what stuff tells wait_for_inferior what to do with a
breakpoint (a challenging task). */
extern int software_breakpoint_inserted_here_p (CORE_ADDR);
-/* FIXME: cagney/2002-11-10: The current [generic] dummy-frame code
- implements a functional superset of this function. The only reason
- it hasn't been removed is because some architectures still don't
- use the new framework. Once they have been fixed, this can go. */
-struct frame_info;
-extern int deprecated_frame_in_dummy (struct frame_info *);
-
extern int breakpoint_thread_match (CORE_ADDR, ptid_t);
extern void until_break_command (char *, int, int);
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 (CORE_ADDR);
+extern void remove_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 (CORE_ADDR);
+extern int deprecated_remove_raw_breakpoint (void *);
+
+/* Indicator of whether exception catchpoints should be nuked between
+ runs of a program. */
+extern int deprecated_exception_catchpoints_are_fragile;
+
+/* Indicator of when exception catchpoints set-up should be
+ reinitialized -- e.g. when program is re-run. */
+extern int deprecated_exception_support_initialized;
+
#endif /* !defined (BREAKPOINT_H) */
projects / binutils.git / blobdiff