/* Interface between GDB and target environments, including files and processes
Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
- 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
+ 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
Contributed by Cygnus Support. Written by John Gilmore.
specific to the communications interface between us and the
target.
- A TARGET is an interface between the debugger and a particular
- kind of file or process. Targets can be STACKED in STRATA,
+ A TARGET is an interface between the debugger and a particular
+ kind of file or process. Targets can be STACKED in STRATA,
so that more than one target can potentially respond to a request.
In particular, memory accesses will walk down the stack of targets
until they find a target that is interested in handling that particular
INF_QUIT_REQ,
/* Process a normal inferior event which will result in target_wait
being called. */
- INF_REG_EVENT,
+ INF_REG_EVENT,
/* Deal with an error on the inferior. */
INF_ERROR,
/* We are called because a timer went off. */
Return the number of bytes actually transfered, zero when no
further transfer is possible, and -1 when the transfer is not
supported.
-
+
NOTE: cagney/2003-10-17: The current interface does not support a
"retry" mechanism. Instead it assumes that at least one byte will
be transfered on each call.
TARGET_OBJECT_MEMORY,
/* Kernel Unwind Table. See "ia64-tdep.c". */
TARGET_OBJECT_UNWIND_TABLE,
- /* Possible future objects: TARGET_OBJECT_FILE, TARGET_OBJECT_PROC,
- TARGET_OBJECT_AUXV, ... */
+ /* Transfer auxilliary vector. */
+ TARGET_OBJECT_AUXV,
+ /* StackGhost cookie. See "sparc-tdep.c". */
+ TARGET_OBJECT_WCOOKIE
+
+ /* Possible future objects: TARGET_OBJECT_FILE, TARGET_OBJECT_PROC, ... */
};
extern LONGEST target_read_partial (struct target_ops *ops,
something at MEMADDR + N. */
int (*to_xfer_memory) (CORE_ADDR memaddr, char *myaddr,
- int len, int write,
+ int len, int write,
struct mem_attrib *attrib,
struct target_ops *target);
void (*to_kill) (void);
void (*to_load) (char *, int);
int (*to_lookup_symbol) (char *, CORE_ADDR *);
- void (*to_create_inferior) (char *, char *, char **);
+ void (*to_create_inferior) (char *, char *, char **, int);
void (*to_post_startup_inferior) (ptid_t);
void (*to_acknowledge_created_inferior) (int);
int (*to_insert_fork_catchpoint) (int);
void (*to_async) (void (*cb) (enum inferior_event_type, void *context),
void *context);
int to_async_mask_value;
- int (*to_find_memory_regions) (int (*) (CORE_ADDR,
- unsigned long,
- int, int, int,
- void *),
+ int (*to_find_memory_regions) (int (*) (CORE_ADDR,
+ unsigned long,
+ int, int, int,
+ void *),
void *);
char * (*to_make_corefile_notes) (bfd *, int *);
only one, of readbuf or writebuf must be non-NULL. */
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
- void *readbuf, const void *writebuf,
+ void *readbuf, const void *writebuf,
ULONGEST offset, LONGEST len);
int to_magic;
/* Attaches to a process on the target side. Arguments are as passed
to the `attach' command by the user. This routine can be called
when the target is not on the target-stack, if the target_can_run
- routine returns 1; in that case, it must push itself onto the stack.
+ routine returns 1; in that case, it must push itself onto the stack.
Upon exit, the target should be ready for normal operations, and
- should be ready to deliver the status of the process immediately
+ should be ready to deliver the status of the process immediately
(without waiting) to an upcoming target_wait call. */
#define target_attach(args, from_tty) \
extern int target_write_memory (CORE_ADDR memaddr, char *myaddr, int len);
-extern int xfer_memory (CORE_ADDR, char *, int, int,
+extern int xfer_memory (CORE_ADDR, char *, int, int,
struct mem_attrib *, struct target_ops *);
-extern int child_xfer_memory (CORE_ADDR, char *, int, int,
+extern int child_xfer_memory (CORE_ADDR, char *, int, int,
struct mem_attrib *, struct target_ops *);
/* Make a single attempt at transfering LEN bytes. On a successful
(*current_target.to_insert_breakpoint) (addr, save)
/* Remove a breakpoint at address ADDR in the target machine.
- SAVE is a pointer to the same save area
- that was previously passed to target_insert_breakpoint.
+ SAVE is a pointer to the same save area
+ that was previously passed to target_insert_breakpoint.
Result is 0 for success, or an errno value. */
#define target_remove_breakpoint(addr, save) \
ENV is the environment vector to pass. Errors reported with error().
On VxWorks and various standalone systems, we ignore exec_file. */
-#define target_create_inferior(exec_file, args, env) \
- (*current_target.to_create_inferior) (exec_file, args, env)
+#define target_create_inferior(exec_file, args, env, FROM_TTY) \
+ (*current_target.to_create_inferior) (exec_file, args, env, (FROM_TTY))
/* Some targets (such as ttrace-based HPUX) don't allow us to request
(*current_target.to_has_exited) (pid,wait_status,exit_status)
/* The debugger has completed a blocking wait() call. There is now
- some process event that must be processed. This function should
+ some process event that must be processed. This function should
be defined by those targets that require the debugger to perform
cleanup or internal state changes in response to the process event. */
/* Get the symbol information for a breakpointable routine called when
- an exception event occurs.
+ an exception event occurs.
Intended mainly for C++, and for those
platforms/implementations where such a callback mechanism is available,
e.g. HP-UX with ANSI C++ (aCC). Some compilers (e.g. g++) support
#define target_async_mask_value \
(current_target.to_async_mask_value)
-extern int target_async_mask (int mask);
+extern int target_async_mask (int mask);
extern void target_link (char *, CORE_ADDR *);
* New Objfile Event Hook:
*
* Sometimes a GDB component wants to get notified whenever a new
- * objfile is loaded. Mainly this is used by thread-debugging
+ * objfile is loaded. Mainly this is used by thread-debugging
* implementations that need to know when symbols for the target
* thread implemenation are available.
*
* The old way of doing this is to define a macro 'target_new_objfile'
* that points to the function that you want to be called on every
* objfile/shlib load.
- *
- * The new way is to grab the function pointer, 'target_new_objfile_hook',
- * and point it to the function that you want to be called on every
- * objfile/shlib load.
- *
- * If multiple clients are willing to be cooperative, they can each
- * save a pointer to the previous value of target_new_objfile_hook
- * before modifying it, and arrange for their function to call the
- * previous function in the chain. In that way, multiple clients
- * can receive this notification (something like with signal handlers).
- */
-extern void (*target_new_objfile_hook) (struct objfile *);
+ The new way is to grab the function pointer,
+ 'deprecated_target_new_objfile_hook', and point it to the function
+ that you want to be called on every objfile/shlib load.
+
+ If multiple clients are willing to be cooperative, they can each
+ save a pointer to the previous value of
+ deprecated_target_new_objfile_hook before modifying it, and arrange
+ for their function to call the previous function in the chain. In
+ that way, multiple clients can receive this notification (something
+ like with signal handlers). */
+
+extern void (*deprecated_target_new_objfile_hook) (struct objfile *);
#ifndef target_pid_or_tid_to_str
#define target_pid_or_tid_to_str(ID) \
* Iterator function for target memory regions.
* Calls a callback function once for each memory region 'mapped'
* in the child process. Defined as a simple macro rather than
- * as a function macro so that it can be tested for nullity.
+ * as a function macro so that it can be tested for nullity.
*/
#define target_find_memory_regions(FUNC, DATA) \
/* Provide defaults for hardware watchpoint functions. */
-/* If the *_hw_beakpoint functions have not been defined
+/* If the *_hw_beakpoint functions have not been defined
elsewhere use the definitions in the target vector. */
/* Returns non-zero if we can set a hardware watchpoint of type TYPE. TYPE is
(*current_target.to_stopped_data_address) ()
#endif
-/* If defined, then we need to decr pc by this much after a hardware break-
- point. Presumably this overrides DECR_PC_AFTER_BREAK... */
-
-#ifndef DECR_PC_AFTER_HW_BREAK
-#define DECR_PC_AFTER_HW_BREAK 0
-#endif
-
-/* Sometimes gdb may pick up what appears to be a valid target address
- from a minimal symbol, but the value really means, essentially,
- "This is an index into a table which is populated when the inferior
- is run. Therefore, do not attempt to use this as a PC." */
-
-#if !defined(PC_REQUIRES_RUN_BEFORE_USE)
-#define PC_REQUIRES_RUN_BEFORE_USE(pc) (0)
-#endif
-
/* This will only be defined by a target that supports catching vfork events,
such as HP-UX.
extern void find_default_attach (char *, int);
-extern void find_default_create_inferior (char *, char *, char **);
+extern void find_default_create_inferior (char *, char *, char **, int);
extern struct target_ops *find_run_target (void);
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