/* Interface between GDB and target environments, including files and processes
- Copyright 1990-1994, 1999, 2000 Free Software Foundation, Inc.
+
+ Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
+ 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+
Contributed by Cygnus Support. Written by John Gilmore.
This file is part of GDB.
#if !defined (TARGET_H)
#define TARGET_H
+struct objfile;
+struct ui_file;
+struct mem_attrib;
+struct target_ops;
+
/* This include file defines the interface between the main part
of the debugger, and the part which is target-specific, or
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
#include "bfd.h"
#include "symtab.h"
+#include "dcache.h"
+#include "memattr.h"
enum strata
{
inferior. */
TARGET_WAITKIND_SPURIOUS,
- /* This is used for target async and extended-async
- only. Remote_async_wait() returns this when there is an event
+ /* An event has occured, but we should wait again.
+ Remote_async_wait() returns this when there is an event
on the inferior, but the rest of the world is not interested in
it. The inferior has not stopped, but has just sent some output
to the console, for instance. In this case, we want to go back
TARGET_WAITKIND_IGNORE
};
-/* The numbering of these signals is chosen to match traditional unix
- signals (insofar as various unices use the same numbers, anyway).
- It is also the numbering of the GDB remote protocol. Other remote
- protocols, if they use a different numbering, should make sure to
- translate appropriately.
-
- Since these numbers have actually made it out into other software
- (stubs, etc.), you mustn't disturb the assigned numbering. If you
- need to add new signals here, add them to the end of the explicitly
- numbered signals.
-
- This is based strongly on Unix/POSIX signals for several reasons:
- (1) This set of signals represents a widely-accepted attempt to
- represent events of this sort in a portable fashion, (2) we want a
- signal to make it from wait to child_wait to the user intact, (3) many
- remote protocols use a similar encoding. However, it is
- recognized that this set of signals has limitations (such as not
- distinguishing between various kinds of SIGSEGV, or not
- distinguishing hitting a breakpoint from finishing a single step).
- So in the future we may get around this either by adding additional
- signals for breakpoint, single-step, etc., or by adding signal
- codes; the latter seems more in the spirit of what BSD, System V,
- etc. are doing to address these issues. */
-
-/* For an explanation of what each signal means, see
- target_signal_to_string. */
-
-enum target_signal
- {
- /* Used some places (e.g. stop_signal) to record the concept that
- there is no signal. */
- TARGET_SIGNAL_0 = 0,
- TARGET_SIGNAL_FIRST = 0,
- TARGET_SIGNAL_HUP = 1,
- TARGET_SIGNAL_INT = 2,
- TARGET_SIGNAL_QUIT = 3,
- TARGET_SIGNAL_ILL = 4,
- TARGET_SIGNAL_TRAP = 5,
- TARGET_SIGNAL_ABRT = 6,
- TARGET_SIGNAL_EMT = 7,
- TARGET_SIGNAL_FPE = 8,
- TARGET_SIGNAL_KILL = 9,
- TARGET_SIGNAL_BUS = 10,
- TARGET_SIGNAL_SEGV = 11,
- TARGET_SIGNAL_SYS = 12,
- TARGET_SIGNAL_PIPE = 13,
- TARGET_SIGNAL_ALRM = 14,
- TARGET_SIGNAL_TERM = 15,
- TARGET_SIGNAL_URG = 16,
- TARGET_SIGNAL_STOP = 17,
- TARGET_SIGNAL_TSTP = 18,
- TARGET_SIGNAL_CONT = 19,
- TARGET_SIGNAL_CHLD = 20,
- TARGET_SIGNAL_TTIN = 21,
- TARGET_SIGNAL_TTOU = 22,
- TARGET_SIGNAL_IO = 23,
- TARGET_SIGNAL_XCPU = 24,
- TARGET_SIGNAL_XFSZ = 25,
- TARGET_SIGNAL_VTALRM = 26,
- TARGET_SIGNAL_PROF = 27,
- TARGET_SIGNAL_WINCH = 28,
- TARGET_SIGNAL_LOST = 29,
- TARGET_SIGNAL_USR1 = 30,
- TARGET_SIGNAL_USR2 = 31,
- TARGET_SIGNAL_PWR = 32,
- /* Similar to SIGIO. Perhaps they should have the same number. */
- TARGET_SIGNAL_POLL = 33,
- TARGET_SIGNAL_WIND = 34,
- TARGET_SIGNAL_PHONE = 35,
- TARGET_SIGNAL_WAITING = 36,
- TARGET_SIGNAL_LWP = 37,
- TARGET_SIGNAL_DANGER = 38,
- TARGET_SIGNAL_GRANT = 39,
- TARGET_SIGNAL_RETRACT = 40,
- TARGET_SIGNAL_MSG = 41,
- TARGET_SIGNAL_SOUND = 42,
- TARGET_SIGNAL_SAK = 43,
- TARGET_SIGNAL_PRIO = 44,
- TARGET_SIGNAL_REALTIME_33 = 45,
- TARGET_SIGNAL_REALTIME_34 = 46,
- TARGET_SIGNAL_REALTIME_35 = 47,
- TARGET_SIGNAL_REALTIME_36 = 48,
- TARGET_SIGNAL_REALTIME_37 = 49,
- TARGET_SIGNAL_REALTIME_38 = 50,
- TARGET_SIGNAL_REALTIME_39 = 51,
- TARGET_SIGNAL_REALTIME_40 = 52,
- TARGET_SIGNAL_REALTIME_41 = 53,
- TARGET_SIGNAL_REALTIME_42 = 54,
- TARGET_SIGNAL_REALTIME_43 = 55,
- TARGET_SIGNAL_REALTIME_44 = 56,
- TARGET_SIGNAL_REALTIME_45 = 57,
- TARGET_SIGNAL_REALTIME_46 = 58,
- TARGET_SIGNAL_REALTIME_47 = 59,
- TARGET_SIGNAL_REALTIME_48 = 60,
- TARGET_SIGNAL_REALTIME_49 = 61,
- TARGET_SIGNAL_REALTIME_50 = 62,
- TARGET_SIGNAL_REALTIME_51 = 63,
- TARGET_SIGNAL_REALTIME_52 = 64,
- TARGET_SIGNAL_REALTIME_53 = 65,
- TARGET_SIGNAL_REALTIME_54 = 66,
- TARGET_SIGNAL_REALTIME_55 = 67,
- TARGET_SIGNAL_REALTIME_56 = 68,
- TARGET_SIGNAL_REALTIME_57 = 69,
- TARGET_SIGNAL_REALTIME_58 = 70,
- TARGET_SIGNAL_REALTIME_59 = 71,
- TARGET_SIGNAL_REALTIME_60 = 72,
- TARGET_SIGNAL_REALTIME_61 = 73,
- TARGET_SIGNAL_REALTIME_62 = 74,
- TARGET_SIGNAL_REALTIME_63 = 75,
-
- /* Used internally by Solaris threads. See signal(5) on Solaris. */
- TARGET_SIGNAL_CANCEL = 76,
-
- /* Yes, this pains me, too. But LynxOS didn't have SIG32, and now
- Linux does, and we can't disturb the numbering, since it's part
- of the protocol. Note that in some GDB's TARGET_SIGNAL_REALTIME_32
- is number 76. */
- TARGET_SIGNAL_REALTIME_32,
-
-#if defined(MACH) || defined(__MACH__)
- /* Mach exceptions */
- TARGET_EXC_BAD_ACCESS,
- TARGET_EXC_BAD_INSTRUCTION,
- TARGET_EXC_ARITHMETIC,
- TARGET_EXC_EMULATION,
- TARGET_EXC_SOFTWARE,
- TARGET_EXC_BREAKPOINT,
-#endif
- TARGET_SIGNAL_INFO,
-
- /* Some signal we don't know about. */
- TARGET_SIGNAL_UNKNOWN,
-
- /* Use whatever signal we use when one is not specifically specified
- (for passing to proceed and so on). */
- TARGET_SIGNAL_DEFAULT,
-
- /* Last and unused enum value, for sizing arrays, etc. */
- TARGET_SIGNAL_LAST
- };
-
struct target_waitstatus
{
enum target_waitkind kind;
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 string for a signal. */
-extern char *target_signal_to_string PARAMS ((enum target_signal));
+extern char *target_signal_to_string (enum target_signal);
/* Return the name (SIGHUP, etc.) for a signal. */
-extern char *target_signal_to_name PARAMS ((enum target_signal));
+extern char *target_signal_to_name (enum target_signal);
/* Given a name (SIGHUP, etc.), return its signal. */
-enum target_signal target_signal_from_name PARAMS ((char *));
+enum target_signal target_signal_from_name (char *);
+\f
+/* Request the transfer of up to LEN 8-bit bytes of the target's
+ OBJECT. The OFFSET, for a seekable object, specifies the starting
+ point. The ANNEX can be used to provide additional data-specific
+ information to the target.
+
+ 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.
+
+ NOTE: cagney/2003-10-17: The current interface can lead to
+ fragmented transfers. Lower target levels should not implement
+ hacks, such as enlarging the transfer, in an attempt to compensate
+ for this. Instead, the target stack should be extended so that it
+ implements supply/collect methods and a look-aside object cache.
+ With that available, the lowest target can safely and freely "push"
+ data up the stack.
+
+ NOTE: cagney/2003-10-17: Unlike the old query and the memory
+ transfer mechanisms, these methods are explicitly parameterized by
+ the target that it should be applied to.
+
+ NOTE: cagney/2003-10-17: Just like the old query and memory xfer
+ methods, these new methods perform partial transfers. The only
+ difference is that these new methods thought to include "partial"
+ in the name. The old code's failure to do this lead to much
+ confusion and duplication of effort as each target object attempted
+ to locally take responsibility for something it didn't have to
+ worry about.
+
+ NOTE: cagney/2003-10-17: With a TARGET_OBJECT_KOD object, for
+ backward compatibility with the "target_query" method that this
+ replaced, when OFFSET and LEN are both zero, return the "minimum"
+ buffer size. See "remote.c" for further information. */
+
+enum target_object
+{
+ /* Kernel Object Display transfer. See "kod.c" and "remote.c". */
+ TARGET_OBJECT_KOD,
+ /* AVR target specific transfer. See "avr-tdep.c" and "remote.c". */
+ TARGET_OBJECT_AVR,
+ /* Transfer up-to LEN bytes of memory starting at OFFSET. */
+ TARGET_OBJECT_MEMORY,
+ /* Kernel Unwind Table. See "ia64-tdep.c". */
+ TARGET_OBJECT_UNWIND_TABLE,
+ /* 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,
+ enum target_object object,
+ const char *annex, void *buf,
+ ULONGEST offset, LONGEST len);
+
+extern LONGEST target_write_partial (struct target_ops *ops,
+ enum target_object object,
+ const char *annex, const void *buf,
+ ULONGEST offset, LONGEST len);
+
+/* Wrappers to perform the full transfer. */
+extern LONGEST target_read (struct target_ops *ops,
+ enum target_object object,
+ const char *annex, void *buf,
+ ULONGEST offset, LONGEST len);
+
+extern LONGEST target_write (struct target_ops *ops,
+ enum target_object object,
+ const char *annex, const void *buf,
+ ULONGEST offset, LONGEST len);
+
+/* Wrappers to target read/write that perform memory transfers. They
+ throw an error if the memory transfer fails.
+
+ NOTE: cagney/2003-10-23: The naming schema is lifted from
+ "frame.h". The parameter order is lifted from get_frame_memory,
+ which in turn lifted it from read_memory. */
+
+extern void get_target_memory (struct target_ops *ops, CORE_ADDR addr,
+ void *buf, LONGEST len);
+extern ULONGEST get_target_memory_unsigned (struct target_ops *ops,
+ CORE_ADDR addr, int len);
\f
/* If certain kinds of activity happen, target_wait should perform
on TARGET_ACTIVITY_FD. */
extern int target_activity_fd;
/* Returns zero to leave the inferior alone, one to interrupt it. */
-extern int (*target_activity_function) PARAMS ((void));
+extern int (*target_activity_function) (void);
\f
struct thread_info; /* fwd decl for parameter list below: */
struct target_ops
{
+ struct target_ops *beneath; /* To the target under this one. */
char *to_shortname; /* Name this target type */
char *to_longname; /* Name for printing */
char *to_doc; /* Documentation. Does not include trailing
newline, and starts with a one-line descrip-
tion (probably similar to to_longname). */
- void (*to_open) PARAMS ((char *, int));
- void (*to_close) PARAMS ((int));
- void (*to_attach) PARAMS ((char *, int));
- void (*to_post_attach) PARAMS ((int));
- void (*to_require_attach) PARAMS ((char *, int));
- void (*to_detach) PARAMS ((char *, int));
- void (*to_require_detach) PARAMS ((int, char *, int));
- void (*to_resume) PARAMS ((int, int, enum target_signal));
- int (*to_wait) PARAMS ((int, struct target_waitstatus *));
- void (*to_post_wait) PARAMS ((int, int));
- void (*to_fetch_registers) PARAMS ((int));
- void (*to_store_registers) PARAMS ((int));
- void (*to_prepare_to_store) PARAMS ((void));
+ /* Per-target scratch pad. */
+ void *to_data;
+ /* The open routine takes the rest of the parameters from the
+ command, and (if successful) pushes a new target onto the
+ stack. Targets should supply this routine, if only to provide
+ an error message. */
+ void (*to_open) (char *, int);
+ /* Old targets with a static target vector provide "to_close".
+ New re-entrant targets provide "to_xclose" and that is expected
+ to xfree everything (including the "struct target_ops"). */
+ void (*to_xclose) (struct target_ops *targ, int quitting);
+ void (*to_close) (int);
+ void (*to_attach) (char *, int);
+ void (*to_post_attach) (int);
+ void (*to_detach) (char *, int);
+ void (*to_disconnect) (char *, int);
+ void (*to_resume) (ptid_t, int, enum target_signal);
+ ptid_t (*to_wait) (ptid_t, struct target_waitstatus *);
+ void (*to_fetch_registers) (int);
+ void (*to_store_registers) (int);
+ void (*to_prepare_to_store) (void);
/* Transfer LEN bytes of memory between GDB address MYADDR and
target address MEMADDR. If WRITE, transfer them to the target, else
negative (call its absolute value N) means that we cannot
transfer right at MEMADDR, but we could transfer at least
- something at MEMADDR + N. */
+ something at MEMADDR + N.
+
+ NOTE: cagney/2004-10-01: This has been entirely superseeded by
+ to_xfer_partial and inferior inheritance. */
- int (*to_xfer_memory) PARAMS ((CORE_ADDR memaddr, char *myaddr,
+ int (*deprecated_xfer_memory) (CORE_ADDR memaddr, char *myaddr,
int len, int write,
- struct target_ops * target));
-
-#if 0
- /* Enable this after 4.12. */
-
- /* Search target memory. Start at STARTADDR and take LEN bytes of
- target memory, and them with MASK, and compare to DATA. If they
- match, set *ADDR_FOUND to the address we found it at, store the data
- we found at LEN bytes starting at DATA_FOUND, and return. If
- not, add INCREMENT to the search address and keep trying until
- the search address is outside of the range [LORANGE,HIRANGE).
-
- If we don't find anything, set *ADDR_FOUND to (CORE_ADDR)0 and
- return. */
-
- void (*to_search) PARAMS ((int len, char *data, char *mask,
- CORE_ADDR startaddr, int increment,
- CORE_ADDR lorange, CORE_ADDR hirange,
- CORE_ADDR * addr_found, char *data_found));
-
-#define target_search(len, data, mask, startaddr, increment, lorange, hirange, addr_found, data_found) \
- (*current_target.to_search) (len, data, mask, startaddr, increment, \
- lorange, hirange, addr_found, data_found)
-#endif /* 0 */
-
- void (*to_files_info) PARAMS ((struct target_ops *));
- int (*to_insert_breakpoint) PARAMS ((CORE_ADDR, char *));
- int (*to_remove_breakpoint) PARAMS ((CORE_ADDR, char *));
- void (*to_terminal_init) PARAMS ((void));
- void (*to_terminal_inferior) PARAMS ((void));
- void (*to_terminal_ours_for_output) PARAMS ((void));
- void (*to_terminal_ours) PARAMS ((void));
- void (*to_terminal_info) PARAMS ((char *, int));
- void (*to_kill) PARAMS ((void));
- void (*to_load) PARAMS ((char *, int));
- int (*to_lookup_symbol) PARAMS ((char *, CORE_ADDR *));
- void (*to_create_inferior) PARAMS ((char *, char *, char **));
- void (*to_post_startup_inferior) PARAMS ((int));
- void (*to_acknowledge_created_inferior) PARAMS ((int));
- void (*to_clone_and_follow_inferior) PARAMS ((int, int *));
- void (*to_post_follow_inferior_by_clone) PARAMS ((void));
- int (*to_insert_fork_catchpoint) PARAMS ((int));
- int (*to_remove_fork_catchpoint) PARAMS ((int));
- int (*to_insert_vfork_catchpoint) PARAMS ((int));
- int (*to_remove_vfork_catchpoint) PARAMS ((int));
- int (*to_has_forked) PARAMS ((int, int *));
- int (*to_has_vforked) PARAMS ((int, int *));
- int (*to_can_follow_vfork_prior_to_exec) PARAMS ((void));
- void (*to_post_follow_vfork) PARAMS ((int, int, int, int));
- int (*to_insert_exec_catchpoint) PARAMS ((int));
- int (*to_remove_exec_catchpoint) PARAMS ((int));
- int (*to_has_execd) PARAMS ((int, char **));
- int (*to_reported_exec_events_per_exec_call) PARAMS ((void));
- int (*to_has_syscall_event) PARAMS ((int, enum target_waitkind *, int *));
- int (*to_has_exited) PARAMS ((int, int, int *));
- void (*to_mourn_inferior) PARAMS ((void));
- int (*to_can_run) PARAMS ((void));
- void (*to_notice_signals) PARAMS ((int pid));
- int (*to_thread_alive) PARAMS ((int pid));
- void (*to_find_new_threads) PARAMS ((void));
- char *(*to_pid_to_str) PARAMS ((int));
- char *(*to_extra_thread_info) PARAMS ((struct thread_info *));
- void (*to_stop) PARAMS ((void));
- int (*to_query) PARAMS ((int /*char */ , char *, char *, int *));
+ struct mem_attrib *attrib,
+ struct target_ops *target);
+
+ void (*to_files_info) (struct target_ops *);
+ int (*to_insert_breakpoint) (CORE_ADDR, char *);
+ int (*to_remove_breakpoint) (CORE_ADDR, char *);
+ int (*to_can_use_hw_breakpoint) (int, int, int);
+ int (*to_insert_hw_breakpoint) (CORE_ADDR, char *);
+ int (*to_remove_hw_breakpoint) (CORE_ADDR, char *);
+ int (*to_remove_watchpoint) (CORE_ADDR, int, int);
+ int (*to_insert_watchpoint) (CORE_ADDR, int, int);
+ int (*to_stopped_by_watchpoint) (void);
+ int to_have_continuable_watchpoint;
+ int (*to_stopped_data_address) (struct target_ops *, CORE_ADDR *);
+ int (*to_region_size_ok_for_hw_watchpoint) (int);
+ void (*to_terminal_init) (void);
+ void (*to_terminal_inferior) (void);
+ void (*to_terminal_ours_for_output) (void);
+ void (*to_terminal_ours) (void);
+ void (*to_terminal_save_ours) (void);
+ void (*to_terminal_info) (char *, int);
+ void (*to_kill) (void);
+ void (*to_load) (char *, int);
+ int (*to_lookup_symbol) (char *, CORE_ADDR *);
+ void (*to_create_inferior) (char *, char *, char **, int);
+ void (*to_post_startup_inferior) (ptid_t);
+ void (*to_acknowledge_created_inferior) (int);
+ void (*to_insert_fork_catchpoint) (int);
+ int (*to_remove_fork_catchpoint) (int);
+ void (*to_insert_vfork_catchpoint) (int);
+ int (*to_remove_vfork_catchpoint) (int);
+ int (*to_follow_fork) (int);
+ void (*to_insert_exec_catchpoint) (int);
+ int (*to_remove_exec_catchpoint) (int);
+ int (*to_reported_exec_events_per_exec_call) (void);
+ int (*to_has_exited) (int, int, int *);
+ void (*to_mourn_inferior) (void);
+ int (*to_can_run) (void);
+ void (*to_notice_signals) (ptid_t ptid);
+ int (*to_thread_alive) (ptid_t ptid);
+ void (*to_find_new_threads) (void);
+ char *(*to_pid_to_str) (ptid_t);
+ char *(*to_extra_thread_info) (struct thread_info *);
+ void (*to_stop) (void);
void (*to_rcmd) (char *command, struct ui_file *output);
- struct symtab_and_line *(*to_enable_exception_callback) PARAMS ((enum exception_event_kind, int));
- struct exception_event_record *(*to_get_current_exception_event) PARAMS ((void));
- char *(*to_pid_to_exec_file) PARAMS ((int pid));
- char *(*to_core_file_to_sym_file) PARAMS ((char *));
+ struct symtab_and_line *(*to_enable_exception_callback) (enum
+ exception_event_kind,
+ int);
+ struct exception_event_record *(*to_get_current_exception_event) (void);
+ char *(*to_pid_to_exec_file) (int pid);
enum strata to_stratum;
- struct target_ops
- *DONT_USE; /* formerly to_next */
int to_has_all_memory;
int to_has_memory;
int to_has_stack;
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 *),
+ void *);
+ char * (*to_make_corefile_notes) (bfd *, int *);
+
+ /* Return the thread-local address at OFFSET in the
+ thread-local storage for the thread PTID and the shared library
+ or executable file given by OBJFILE. If that block of
+ thread-local storage hasn't been allocated yet, this function
+ may return an error. */
+ CORE_ADDR (*to_get_thread_local_address) (ptid_t ptid,
+ struct objfile *objfile,
+ CORE_ADDR offset);
+
+ /* Perform partial transfers on OBJECT. See target_read_partial
+ and target_write_partial for details of each variant. One, and
+ 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,
+ ULONGEST offset, LONGEST len);
+
int to_magic;
/* Need sub-structure for target machine related rather than comm related?
*/
extern struct target_ops current_target;
-/* An item on the target stack. */
-
-struct target_stack_item
- {
- struct target_stack_item *next;
- struct target_ops *target_ops;
- };
-
-/* The target stack. */
-
-extern struct target_stack_item *target_stack;
-
/* Define easy words for doing these operations on our current target. */
#define target_shortname (current_target.to_shortname)
#define target_longname (current_target.to_longname)
-/* The open routine takes the rest of the parameters from the command,
- and (if successful) pushes a new target onto the stack.
- Targets should supply this routine, if only to provide an error message. */
-
-#define target_open(name, from_tty) \
- (*current_target.to_open) (name, from_tty)
-
-/* Does whatever cleanup is required for a target that we are no longer
- going to be calling. Argument says whether we are quitting gdb and
- should not get hung in case of errors, or whether we want a clean
- termination even if it takes a while. This routine is automatically
- always called just before a routine is popped off the target stack.
- Closing file descriptors and freeing memory are typical things it should
- do. */
+/* Does whatever cleanup is required for a target that we are no
+ longer going to be calling. QUITTING indicates that GDB is exiting
+ and should not get hung on an error (otherwise it is important to
+ perform clean termination, even if it takes a while). This routine
+ is automatically always called when popping the target off the
+ target stack (to_beneath is undefined). Closing file descriptors
+ and freeing all memory allocated memory are typical things it
+ should do. */
-#define target_close(quitting) \
- (*current_target.to_close) (quitting)
+void target_close (struct target_ops *targ, int quitting);
/* 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) \
#define target_post_attach(pid) \
(*current_target.to_post_attach) (pid)
-/* Attaches to a process on the target side, if not already attached.
- (If already attached, takes no action.)
-
- This operation can be used to follow the child process of a fork.
- On some targets, such child processes of an original inferior process
- are automatically under debugger control, and thus do not require an
- actual attach operation. */
-
-#define target_require_attach(args, from_tty) \
- (*current_target.to_require_attach) (args, from_tty)
-
/* Takes a program previously attached to and detaches it.
The program may resume execution (some targets do, some don't) and will
no longer stop on signals, etc. We better not have left any breakpoints
typed by the user (e.g. a signal to send the process). FROM_TTY
says whether to be verbose or not. */
-extern void
-target_detach PARAMS ((char *, int));
+extern void target_detach (char *, int);
-/* Detaches from a process on the target side, if not already dettached.
- (If already detached, takes no action.)
+/* Disconnect from the current target without resuming it (leaving it
+ waiting for a debugger). */
- This operation can be used to follow the parent process of a fork.
- On some targets, such child processes of an original inferior process
- are automatically under debugger control, and thus do require an actual
- detach operation.
+extern void target_disconnect (char *, int);
- PID is the process id of the child to detach from.
- ARGS is arguments typed by the user (e.g. a signal to send the process).
- FROM_TTY says whether to be verbose or not. */
-
-#define target_require_detach(pid, args, from_tty) \
- (*current_target.to_require_detach) (pid, args, from_tty)
-
-/* Resume execution of the target process PID. STEP says whether to
+/* Resume execution of the target process PTID. STEP says whether to
single-step or to run free; SIGGNAL is the signal to be given to
the target, or TARGET_SIGNAL_0 for no signal. The caller may not
pass TARGET_SIGNAL_DEFAULT. */
-#define target_resume(pid, step, siggnal) \
- (*current_target.to_resume) (pid, step, siggnal)
+#define target_resume(ptid, step, siggnal) \
+ do { \
+ dcache_invalidate(target_dcache); \
+ (*current_target.to_resume) (ptid, step, siggnal); \
+ } while (0)
-/* Wait for process pid to do something. Pid = -1 to wait for any pid
- to do something. Return pid of child, or -1 in case of error;
+/* Wait for process pid to do something. PTID = -1 to wait for any
+ pid to do something. Return pid of child, or -1 in case of error;
store status through argument pointer STATUS. Note that it is
- *not* OK to return_to_top_level out of target_wait without popping
+ _NOT_ OK to throw_exception() out of target_wait() without popping
the debugging target from the stack; GDB isn't prepared to get back
to the prompt with a debugging target but without the frame cache,
stop_pc, etc., set up. */
-#define target_wait(pid, status) \
- (*current_target.to_wait) (pid, status)
-
-/* The target_wait operation waits for a process event to occur, and
- thereby stop the process.
-
- On some targets, certain events may happen in sequences. gdb's
- correct response to any single event of such a sequence may require
- knowledge of what earlier events in the sequence have been seen.
-
- This operation provides a target-specific hook that allows the
- necessary bookkeeping to be performed to track such sequences. */
-
-#define target_post_wait(pid, status) \
- (*current_target.to_post_wait) (pid, status)
+#define target_wait(ptid, status) \
+ (*current_target.to_wait) (ptid, status)
-/* Fetch register REGNO, or all regs if regno == -1. No result. */
+/* Fetch at least register REGNO, or all regs if regno == -1. No result. */
#define target_fetch_registers(regno) \
(*current_target.to_fetch_registers) (regno)
#define target_prepare_to_store() \
(*current_target.to_prepare_to_store) ()
-extern int
-target_read_string PARAMS ((CORE_ADDR, char **, int, int *));
+extern DCACHE *target_dcache;
+
+extern int do_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write,
+ struct mem_attrib *attrib);
-extern int
-target_read_memory PARAMS ((CORE_ADDR memaddr, char *myaddr, int len));
+extern int target_read_string (CORE_ADDR, char **, int, int *);
-extern int
-target_read_memory_section PARAMS ((CORE_ADDR memaddr, char *myaddr, int len,
- asection * bfd_section));
+extern int target_read_memory (CORE_ADDR memaddr, bfd_byte *myaddr, int len);
-extern int
-target_write_memory PARAMS ((CORE_ADDR, char *, int));
+extern int target_write_memory (CORE_ADDR memaddr, const bfd_byte *myaddr,
+ int len);
-extern int
-xfer_memory PARAMS ((CORE_ADDR, char *, int, int, struct target_ops *));
+extern int xfer_memory (CORE_ADDR, char *, int, int,
+ struct mem_attrib *, struct target_ops *);
-extern int
-child_xfer_memory PARAMS ((CORE_ADDR, char *, int, int, struct target_ops *));
+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
transfer, the number of bytes actually transfered is returned and
of bytes actually transfered is not defined) and ERR is set to a
non-zero error indication. */
-extern int
-target_read_memory_partial (CORE_ADDR addr, char *buf, int len, int *err);
+extern int target_read_memory_partial (CORE_ADDR addr, char *buf, int len,
+ int *err);
-extern int
-target_write_memory_partial (CORE_ADDR addr, char *buf, int len, int *err);
+extern int target_write_memory_partial (CORE_ADDR addr, char *buf, int len,
+ int *err);
-extern char *
-child_pid_to_exec_file PARAMS ((int));
+extern char *child_pid_to_exec_file (int);
-extern char *
-child_core_file_to_sym_file PARAMS ((char *));
+extern char *child_core_file_to_sym_file (char *);
#if defined(CHILD_POST_ATTACH)
-extern void
-child_post_attach PARAMS ((int));
+extern void child_post_attach (int);
#endif
-extern void
-child_post_wait PARAMS ((int, int));
-
-extern void
-child_post_startup_inferior PARAMS ((int));
-
-extern void
-child_acknowledge_created_inferior PARAMS ((int));
-
-extern void
-child_clone_and_follow_inferior PARAMS ((int, int *));
-
-extern void
-child_post_follow_inferior_by_clone PARAMS ((void));
+extern void child_post_startup_inferior (ptid_t);
-extern int
-child_insert_fork_catchpoint PARAMS ((int));
+extern void child_acknowledge_created_inferior (int);
-extern int
-child_remove_fork_catchpoint PARAMS ((int));
+extern void child_insert_fork_catchpoint (int);
-extern int
-child_insert_vfork_catchpoint PARAMS ((int));
+extern int child_remove_fork_catchpoint (int);
-extern int
-child_remove_vfork_catchpoint PARAMS ((int));
+extern void child_insert_vfork_catchpoint (int);
-extern int
-child_has_forked PARAMS ((int, int *));
+extern int child_remove_vfork_catchpoint (int);
-extern int
-child_has_vforked PARAMS ((int, int *));
+extern void child_acknowledge_created_inferior (int);
-extern void
-child_acknowledge_created_inferior PARAMS ((int));
+extern int child_follow_fork (int);
-extern int
-child_can_follow_vfork_prior_to_exec PARAMS ((void));
+extern void child_insert_exec_catchpoint (int);
-extern void
-child_post_follow_vfork PARAMS ((int, int, int, int));
+extern int child_remove_exec_catchpoint (int);
-extern int
-child_insert_exec_catchpoint PARAMS ((int));
+extern int child_reported_exec_events_per_exec_call (void);
-extern int
-child_remove_exec_catchpoint PARAMS ((int));
+extern int child_has_exited (int, int, int *);
-extern int
-child_has_execd PARAMS ((int, char **));
+extern int child_thread_alive (ptid_t);
-extern int
-child_reported_exec_events_per_exec_call PARAMS ((void));
+/* From infrun.c. */
-extern int
-child_has_syscall_event PARAMS ((int, enum target_waitkind *, int *));
+extern int inferior_has_forked (int pid, int *child_pid);
-extern int
-child_has_exited PARAMS ((int, int, int *));
+extern int inferior_has_vforked (int pid, int *child_pid);
-extern int
-child_thread_alive PARAMS ((int));
+extern int inferior_has_execd (int pid, char **execd_pathname);
/* From exec.c */
-extern void
-print_section_info PARAMS ((struct target_ops *, bfd *));
+extern void print_section_info (struct target_ops *, bfd *);
/* Print a line about the current target. */
#define target_files_info() \
(*current_target.to_files_info) (¤t_target)
-/* Insert a breakpoint at address ADDR in the target machine.
- SAVE is a pointer to memory allocated for saving the
- target contents. It is guaranteed by the caller to be long enough
- to save "sizeof BREAKPOINT" bytes. Result is 0 for success, or
- an errno value. */
+/* Insert a breakpoint at address ADDR in the target machine. SAVE is
+ a pointer to memory allocated for saving the target contents. It
+ is guaranteed by the caller to be long enough to save the number of
+ breakpoint bytes indicated by BREAKPOINT_FROM_PC. Result is 0 for
+ success, or an errno value. */
#define target_insert_breakpoint(addr, save) \
(*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) \
#define target_terminal_ours() \
(*current_target.to_terminal_ours) ()
+/* Save our terminal settings.
+ This is called from TUI after entering or leaving the curses
+ mode. Since curses modifies our terminal this call is here
+ to take this change into account. */
+
+#define target_terminal_save_ours() \
+ (*current_target.to_terminal_save_ours) ()
+
/* Print useful information about our terminal status, if such a thing
exists. */
#define target_lookup_symbol(name, addrp) \
(*current_target.to_lookup_symbol) (name, addrp)
-/* Start an inferior process and set inferior_pid to its pid.
+/* Start an inferior process and set inferior_ptid to its pid.
EXEC_FILE is the file to run.
ALLARGS is a string containing the arguments to the program.
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
Such targets will supply an appropriate definition for this function. */
-#define target_post_startup_inferior(pid) \
- (*current_target.to_post_startup_inferior) (pid)
+#define target_post_startup_inferior(ptid) \
+ (*current_target.to_post_startup_inferior) (ptid)
/* On some targets, the sequence of starting up an inferior requires
some synchronization between gdb and the new inferior process, PID. */
#define target_acknowledge_created_inferior(pid) \
(*current_target.to_acknowledge_created_inferior) (pid)
-/* An inferior process has been created via a fork() or similar
- system call. This function will clone the debugger, then ensure
- that CHILD_PID is attached to by that debugger.
-
- FOLLOWED_CHILD is set TRUE on return *for the clone debugger only*,
- and FALSE otherwise. (The original and clone debuggers can use this
- to determine which they are, if need be.)
-
- (This is not a terribly useful feature without a GUI to prevent
- the two debuggers from competing for shell input.) */
-
-#define target_clone_and_follow_inferior(child_pid,followed_child) \
- (*current_target.to_clone_and_follow_inferior) (child_pid, followed_child)
-
-/* This operation is intended to be used as the last in a sequence of
- steps taken when following both parent and child of a fork. This
- is used by a clone of the debugger, which will follow the child.
-
- The original debugger has detached from this process, and the
- clone has attached to it.
-
- On some targets, this requires a bit of cleanup to make it work
- correctly. */
-
-#define target_post_follow_inferior_by_clone() \
- (*current_target.to_post_follow_inferior_by_clone) ()
-
/* On some targets, we can catch an inferior fork or vfork event when
it occurs. These functions insert/remove an already-created
catchpoint for such events. */
#define target_remove_vfork_catchpoint(pid) \
(*current_target.to_remove_vfork_catchpoint) (pid)
-/* Returns TRUE if PID has invoked the fork() system call. And,
- also sets CHILD_PID to the process id of the other ("child")
- inferior process that was created by that call. */
-
-#define target_has_forked(pid,child_pid) \
- (*current_target.to_has_forked) (pid,child_pid)
+/* If the inferior forks or vforks, this function will be called at
+ the next resume in order to perform any bookkeeping and fiddling
+ necessary to continue debugging either the parent or child, as
+ requested, and releasing the other. Information about the fork
+ or vfork event is available via get_last_target_status ().
+ This function returns 1 if the inferior should not be resumed
+ (i.e. there is another event pending). */
-/* Returns TRUE if PID has invoked the vfork() system call. And,
- also sets CHILD_PID to the process id of the other ("child")
- inferior process that was created by that call. */
-
-#define target_has_vforked(pid,child_pid) \
- (*current_target.to_has_vforked) (pid,child_pid)
-
-/* Some platforms (such as pre-10.20 HP-UX) don't allow us to do
- anything to a vforked child before it subsequently calls exec().
- On such platforms, we say that the debugger cannot "follow" the
- child until it has vforked.
-
- This function should be defined to return 1 by those targets
- which can allow the debugger to immediately follow a vforked
- child, and 0 if they cannot. */
-
-#define target_can_follow_vfork_prior_to_exec() \
- (*current_target.to_can_follow_vfork_prior_to_exec) ()
-
-/* An inferior process has been created via a vfork() system call.
- The debugger has followed the parent, the child, or both. The
- process of setting up for that follow may have required some
- target-specific trickery to track the sequence of reported events.
- If so, this function should be defined by those targets that
- require the debugger to perform cleanup or initialization after
- the vfork follow. */
-
-#define target_post_follow_vfork(parent_pid,followed_parent,child_pid,followed_child) \
- (*current_target.to_post_follow_vfork) (parent_pid,followed_parent,child_pid,followed_child)
+#define target_follow_fork(follow_child) \
+ (*current_target.to_follow_fork) (follow_child)
/* On some targets, we can catch an inferior exec event when it
occurs. These functions insert/remove an already-created
#define target_remove_exec_catchpoint(pid) \
(*current_target.to_remove_exec_catchpoint) (pid)
-/* Returns TRUE if PID has invoked a flavor of the exec() system call.
- And, also sets EXECD_PATHNAME to the pathname of the executable
- file that was passed to exec(), and is now being executed. */
-
-#define target_has_execd(pid,execd_pathname) \
- (*current_target.to_has_execd) (pid,execd_pathname)
-
/* Returns the number of exec events that are reported when a process
invokes a flavor of the exec() system call on this target, if exec
events are being reported. */
#define target_reported_exec_events_per_exec_call() \
(*current_target.to_reported_exec_events_per_exec_call) ()
-/* Returns TRUE if PID has reported a syscall event. And, also sets
- KIND to the appropriate TARGET_WAITKIND_, and sets SYSCALL_ID to
- the unique integer ID of the syscall. */
-
-#define target_has_syscall_event(pid,kind,syscall_id) \
- (*current_target.to_has_syscall_event) (pid,kind,syscall_id)
-
/* Returns TRUE if PID has exited. And, also sets EXIT_STATUS to the
exit code of PID, if any. */
(*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. */
/* post process changes to signal handling in the inferior. */
-#define target_notice_signals(pid) \
- (*current_target.to_notice_signals) (pid)
+#define target_notice_signals(ptid) \
+ (*current_target.to_notice_signals) (ptid)
/* Check to see if a thread is still alive. */
-#define target_thread_alive(pid) \
- (*current_target.to_thread_alive) (pid)
+#define target_thread_alive(ptid) \
+ (*current_target.to_thread_alive) (ptid)
/* Query for new threads and add them to the thread list. */
#define target_stop current_target.to_stop
-/* Queries the target side for some information. The first argument is a
- letter specifying the type of the query, which is used to determine who
- should process it. The second argument is a string that specifies which
- information is desired and the third is a buffer that carries back the
- response from the target side. The fourth parameter is the size of the
- output buffer supplied. */
-
-#define target_query(query_type, query, resp_buffer, bufffer_size) \
- (*current_target.to_query) (query_type, query, resp_buffer, bufffer_size)
-
/* Send the specified COMMAND to the target's monitor
(shell,interpreter) for execution. The result of the query is
placed in OUTBUF. */
/* 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_get_current_exception_event() \
(*current_target.to_get_current_exception_event) ()
-/* Pointer to next target in the chain, e.g. a core file and an exec file. */
-
-#define target_next \
- (current_target.to_next)
-
/* Does the target include all of memory, or only part of it? This
determines whether we look up the target chain for other parts of
memory if this target can't satisfy a request. */
#define target_async(CALLBACK,CONTEXT) \
(current_target.to_async((CALLBACK), (CONTEXT)))
-/* This is to be used ONLY within run_stack_dummy(). It
- provides a workaround, to have inferior function calls done in
- sychronous mode, even though the target is asynchronous. After
+/* This is to be used ONLY within call_function_by_hand(). It provides
+ a workaround, to have inferior function calls done in sychronous
+ mode, even though the target is asynchronous. After
target_async_mask(0) is called, calls to target_can_async_p() will
return FALSE , so that target_resume() will not try to start the
target asynchronously. After the inferior stops, we IMMEDIATELY
restore the previous nature of the target, by calling
target_async_mask(1). After that, target_can_async_p() will return
- TRUE. ANY OTHER USE OF THIS FEATURE IS DEPRECATED.
+ TRUE. ANY OTHER USE OF THIS FEATURE IS DEPRECATED.
FIXME ezannoni 1999-12-13: we won't need this once we move
the turning async on and off to the single execution commands,
#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 PARAMS ((char *, CORE_ADDR *));
+extern void target_link (char *, CORE_ADDR *);
/* Converts a process id to a string. Usually, the string just contains
`process xyz', but on some systems it may contain
#ifndef target_tid_to_str
#define target_tid_to_str(PID) \
target_pid_to_str (PID)
-extern char *normal_pid_to_str PARAMS ((int pid));
+extern char *normal_pid_to_str (ptid_t ptid);
#endif
/* Return a short string describing extra information about PID,
* 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) PARAMS ((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) \
#define target_pid_to_exec_file(pid) \
(current_target.to_pid_to_exec_file) (pid)
-/* Hook to call target-dependant code after reading in a new symbol table. */
+/*
+ * 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.
+ */
-#ifndef TARGET_SYMFILE_POSTREAD
-#define TARGET_SYMFILE_POSTREAD(OBJFILE)
-#endif
+#define target_find_memory_regions(FUNC, DATA) \
+ (current_target.to_find_memory_regions) (FUNC, DATA)
-/* Hook to call target dependant code just after inferior target process has
+/*
+ * Compose corefile .note section.
+ */
+
+#define target_make_corefile_notes(BFD, SIZE_P) \
+ (current_target.to_make_corefile_notes) (BFD, SIZE_P)
+
+/* Thread-local values. */
+#define target_get_thread_local_address \
+ (current_target.to_get_thread_local_address)
+#define target_get_thread_local_address_p() \
+ (target_get_thread_local_address != NULL)
+
+/* Hook to call target dependent code just after inferior target process has
started. */
#ifndef TARGET_CREATE_INFERIOR_HOOK
write). */
#ifndef STOPPED_BY_WATCHPOINT
-#define STOPPED_BY_WATCHPOINT(w) 0
+#define STOPPED_BY_WATCHPOINT(w) \
+ (*current_target.to_stopped_by_watchpoint) ()
#endif
-/* HP-UX supplies these operations, which respectively disable and enable
- the memory page-protections that are used to implement hardware watchpoints
- on that platform. See wait_for_inferior's use of these. */
-
-#if !defined(TARGET_DISABLE_HW_WATCHPOINTS)
-#define TARGET_DISABLE_HW_WATCHPOINTS(pid)
-#endif
+/* Non-zero if we have continuable watchpoints */
-#if !defined(TARGET_ENABLE_HW_WATCHPOINTS)
-#define TARGET_ENABLE_HW_WATCHPOINTS(pid)
+#ifndef HAVE_CONTINUABLE_WATCHPOINT
+#define HAVE_CONTINUABLE_WATCHPOINT \
+ (current_target.to_have_continuable_watchpoint)
#endif
-/* Provide defaults for systems that don't support hardware watchpoints. */
+/* Provide defaults for hardware watchpoint functions. */
-#ifndef TARGET_HAS_HARDWARE_WATCHPOINTS
+/* 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
one of bp_hardware_watchpoint, bp_read_watchpoint, bp_write_watchpoint, or
bp_hardware_breakpoint. CNT is the number of such watchpoints used so far
(including this one?). OTHERTYPE is who knows what... */
-#define TARGET_CAN_USE_HARDWARE_WATCHPOINT(TYPE,CNT,OTHERTYPE) 0
+#ifndef TARGET_CAN_USE_HARDWARE_WATCHPOINT
+#define TARGET_CAN_USE_HARDWARE_WATCHPOINT(TYPE,CNT,OTHERTYPE) \
+ (*current_target.to_can_use_hw_breakpoint) (TYPE, CNT, OTHERTYPE);
+#endif
#if !defined(TARGET_REGION_SIZE_OK_FOR_HW_WATCHPOINT)
#define TARGET_REGION_SIZE_OK_FOR_HW_WATCHPOINT(byte_count) \
- (LONGEST)(byte_count) <= REGISTER_SIZE
-#endif
-
-/* However, some addresses may not be profitable to use hardware to watch,
- or may be difficult to understand when the addressed object is out of
- scope, and hence should be unwatched. On some targets, this may have
- severe performance penalties, such that we might as well use regular
- watchpoints, and save (possibly precious) hardware watchpoints for other
- locations. */
-
-#if !defined(TARGET_RANGE_PROFITABLE_FOR_HW_WATCHPOINT)
-#define TARGET_RANGE_PROFITABLE_FOR_HW_WATCHPOINT(pid,start,len) 0
+ (*current_target.to_region_size_ok_for_hw_watchpoint) (byte_count)
#endif
for write, 1 for read, and 2 for read/write accesses. Returns 0 for
success, non-zero for failure. */
-#define target_remove_watchpoint(ADDR,LEN,TYPE) -1
-#define target_insert_watchpoint(ADDR,LEN,TYPE) -1
-
-#endif /* TARGET_HAS_HARDWARE_WATCHPOINTS */
+#ifndef target_insert_watchpoint
+#define target_insert_watchpoint(addr, len, type) \
+ (*current_target.to_insert_watchpoint) (addr, len, type)
-#ifndef target_insert_hw_breakpoint
-#define target_remove_hw_breakpoint(ADDR,SHADOW) -1
-#define target_insert_hw_breakpoint(ADDR,SHADOW) -1
+#define target_remove_watchpoint(addr, len, type) \
+ (*current_target.to_remove_watchpoint) (addr, len, type)
#endif
-#ifndef target_stopped_data_address
-#define target_stopped_data_address() 0
-#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 target_insert_hw_breakpoint
+#define target_insert_hw_breakpoint(addr, save) \
+ (*current_target.to_insert_hw_breakpoint) (addr, save)
-#ifndef DECR_PC_AFTER_HW_BREAK
-#define DECR_PC_AFTER_HW_BREAK 0
+#define target_remove_hw_breakpoint(addr, save) \
+ (*current_target.to_remove_hw_breakpoint) (addr, save)
#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." */
+extern int target_stopped_data_address_p (struct target_ops *);
-#if !defined(PC_REQUIRES_RUN_BEFORE_USE)
-#define PC_REQUIRES_RUN_BEFORE_USE(pc) (0)
+#ifndef target_stopped_data_address
+#define target_stopped_data_address(target, x) \
+ (*target.to_stopped_data_address) (target, x)
+#else
+/* Horrible hack to get around existing macros :-(. */
+#define target_stopped_data_address_p(CURRENT_TARGET) (1)
#endif
/* This will only be defined by a target that supports catching vfork events,
pop_target: Remove the top thing on the stack of current targets. */
-extern void
-add_target PARAMS ((struct target_ops *));
+extern void add_target (struct target_ops *);
-extern int
-push_target PARAMS ((struct target_ops *));
+extern int push_target (struct target_ops *);
-extern int
-unpush_target PARAMS ((struct target_ops *));
+extern int unpush_target (struct target_ops *);
-extern void
-target_preopen PARAMS ((int));
+extern void target_preopen (int);
-extern void
-pop_target PARAMS ((void));
+extern void pop_target (void);
/* Struct section_table maps address ranges to file sections. It is
mostly used with BFD files, but can be used without (e.g. for handling
CORE_ADDR addr; /* Lowest address in section */
CORE_ADDR endaddr; /* 1+highest address in section */
- sec_ptr the_bfd_section;
+ struct bfd_section *the_bfd_section;
bfd *bfd; /* BFD file pointer */
};
-/* Builds a section table, given args BFD, SECTABLE_PTR, SECEND_PTR.
- Returns 0 if OK, 1 on error. */
+/* Return the "section" containing the specified address. */
+struct section_table *target_section_by_addr (struct target_ops *target,
+ CORE_ADDR addr);
-extern int
-build_section_table PARAMS ((bfd *, struct section_table **,
- struct section_table **));
/* From mem-break.c */
-extern int memory_remove_breakpoint PARAMS ((CORE_ADDR, char *));
-
-extern int memory_insert_breakpoint PARAMS ((CORE_ADDR, char *));
+extern int memory_remove_breakpoint (CORE_ADDR, char *);
-extern int default_memory_remove_breakpoint PARAMS ((CORE_ADDR, char *));
+extern int memory_insert_breakpoint (CORE_ADDR, char *);
-extern int default_memory_insert_breakpoint PARAMS ((CORE_ADDR, char *));
+extern int default_memory_remove_breakpoint (CORE_ADDR, char *);
-extern breakpoint_from_pc_fn memory_breakpoint_from_pc;
+extern int default_memory_insert_breakpoint (CORE_ADDR, char *);
/* From target.c */
-extern void
-initialize_targets PARAMS ((void));
+extern void initialize_targets (void);
-extern void
-noprocess PARAMS ((void));
+extern void noprocess (void);
-extern void
-find_default_attach PARAMS ((char *, int));
+extern void find_default_attach (char *, int);
-extern void
-find_default_require_attach PARAMS ((char *, int));
+extern void find_default_create_inferior (char *, char *, char **, int);
-extern void
-find_default_require_detach PARAMS ((int, char *, int));
+extern struct target_ops *find_run_target (void);
-extern void
-find_default_create_inferior PARAMS ((char *, char *, char **));
+extern struct target_ops *find_core_target (void);
-extern void
-find_default_clone_and_follow_inferior PARAMS ((int, int *));
+extern struct target_ops *find_target_beneath (struct target_ops *);
-extern struct target_ops *
-find_run_target PARAMS ((void));
-
-extern struct target_ops *
-find_core_target PARAMS ((void));
-
-extern struct target_ops *
-find_target_beneath PARAMS ((struct target_ops *));
-
-extern int
-target_resize_to_sections PARAMS ((struct target_ops *target, int num_added));
+extern int target_resize_to_sections (struct target_ops *target,
+ int num_added);
extern void remove_target_sections (bfd *abfd);
/* Timeout limit for response from target. */
extern int remote_timeout;
-extern asection *target_memory_bfd_section;
\f
/* Functions for helping to write a native target. */
/* This is for native targets which use a unix/POSIX-style waitstatus. */
-extern void store_waitstatus PARAMS ((struct target_waitstatus *, int));
+extern void store_waitstatus (struct target_waitstatus *, int);
/* Predicate to target_signal_to_host(). Return non-zero if the enum
targ_signal SIGNO has an equivalent ``host'' representation. */
gdb_signal'' would probably be better as it is refering to GDB's
internal representation of a target operating system's signal. */
-extern enum target_signal target_signal_from_host PARAMS ((int));
-extern int target_signal_to_host PARAMS ((enum target_signal));
+extern enum target_signal target_signal_from_host (int);
+extern int target_signal_to_host (enum target_signal);
/* Convert from a number used in a GDB command to an enum target_signal. */
-extern enum target_signal target_signal_from_command PARAMS ((int));
+extern enum target_signal target_signal_from_command (int);
/* Any target can call this to switch to remote protocol (in remote.c). */
-extern void push_remote_target PARAMS ((char *name, int from_tty));
+extern void push_remote_target (char *name, int from_tty);
\f
/* Imported from machine dependent code */
-#ifndef SOFTWARE_SINGLE_STEP_P
-#define SOFTWARE_SINGLE_STEP_P 0
-#define SOFTWARE_SINGLE_STEP(sig,bp_p) \
- (internal_error ("SOFTWARE_SINGLE_STEP"), 0)
-#endif /* SOFTWARE_SINGLE_STEP_P */
-
/* Blank target vector entries are initialized to target_ignore. */
-void target_ignore PARAMS ((void));
-
-/* Macro for getting target's idea of a frame pointer.
- FIXME: GDB's whole scheme for dealing with "frames" and
- "frame pointers" needs a serious shakedown. */
-#ifndef TARGET_VIRTUAL_FRAME_POINTER
-#define TARGET_VIRTUAL_FRAME_POINTER(ADDR, REGP, OFFP) \
- do { *(REGP) = FP_REGNUM; *(OFFP) = 0; } while (0)
-#endif /* TARGET_VIRTUAL_FRAME_POINTER */
+void target_ignore (void);
+
+extern struct target_ops deprecated_child_ops;
#endif /* !defined (TARGET_H) */
projects / deliverable / binutils-gdb.git / blobdiff