1 /* Common definitions for remote server for GDB.
2 Copyright (C) 1993, 1995, 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2005,
3 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
26 #include "wincecompat.h"
44 /* On some systems such as MinGW, alloca is declared in malloc.h
45 (there is no alloca.h). */
50 #if !HAVE_DECL_STRERROR
52 extern char *strerror (int); /* X3.159-1989 4.11.6.2 */
58 extern void perror (const char *);
63 extern void *memmem (const void *, size_t , const void *, size_t);
66 #if !HAVE_DECL_VASPRINTF
67 extern int vasprintf(char **strp
, const char *fmt
, va_list ap
);
69 #if !HAVE_DECL_VSNPRINTF
70 int vsnprintf(char *str
, size_t size
, const char *format
, va_list ap
);
74 #if defined(__GNUC__) && (__GNUC__ > 2 \
75 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7))
76 #define ATTR_NORETURN __attribute__ ((noreturn))
78 #define ATTR_NORETURN /* nothing */
83 #if defined(__GNUC__) && (__GNUC__ > 2 \
84 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 4))
85 #define ATTR_FORMAT(type, x, y) __attribute__ ((format(type, x, y)))
87 #define ATTR_FORMAT(type, x, y) /* nothing */
92 #if defined(__GNUC__) && (__GNUC__ >= 3)
93 #define ATTR_MALLOC __attribute__ ((__malloc__))
95 #define ATTR_MALLOC /* nothing */
99 /* Define underscore macro, if not available, to be able to use it inside
100 code shared with gdb in common directory. */
102 #define _(String) (String)
105 /* A type used for binary buffers. */
106 typedef unsigned char gdb_byte
;
110 #include "xml-utils.h"
111 #include "gdb_locale.h"
113 /* FIXME: This should probably be autoconf'd for. It's an integer type at
114 least the size of a (void *). */
115 typedef long long CORE_ADDR
;
117 typedef long long LONGEST
;
118 typedef unsigned long long ULONGEST
;
120 /* Generic information for tracking a list of ``inferiors'' - threads,
124 struct inferior_list_entry
*head
;
125 struct inferior_list_entry
*tail
;
127 struct inferior_list_entry
130 struct inferior_list_entry
*next
;
137 #include "regcache.h"
138 #include "gdb/signals.h"
139 #include "gdb_signals.h"
141 #include "mem-break.h"
145 struct inferior_list_entry entry
;
149 /* The last resume GDB requested on this thread. */
150 enum resume_kind last_resume_kind
;
152 /* The last wait status reported for this thread. */
153 struct target_waitstatus last_status
;
155 /* Given `while-stepping', a thread may be collecting data for more
156 than one tracepoint simultaneously. E.g.:
158 ff0001 INSN1 <-- TP1, while-stepping 10 collect $regs
160 ff0003 INSN3 <-- TP2, collect $regs
161 ff0004 INSN4 <-- TP3, while-stepping 10 collect $regs
164 Notice that when instruction INSN5 is reached, the while-stepping
165 actions of both TP1 and TP3 are still being collected, and that TP2
166 had been collected meanwhile. The whole range of ff0001-ff0005
167 should be single-stepped, due to at least TP1's while-stepping
168 action covering the whole range.
170 On the other hand, the same tracepoint with a while-stepping action
171 may be hit by more than one thread simultaneously, hence we can't
172 keep the current step count in the tracepoint itself.
174 This is the head of the list of the states of `while-stepping'
175 tracepoint actions this thread is now collecting; NULL if empty.
176 Each item in the list holds the current step of the while-stepping
178 struct wstep_state
*while_stepping
;
183 struct inferior_list_entry entry
;
190 struct raw_breakpoint
;
191 struct fast_tracepoint_jump
;
192 struct process_info_private
;
196 struct inferior_list_entry head
;
198 /* Nonzero if this child process was attached rather than
202 /* True if GDB asked us to detach from this process, but we remained
206 /* The symbol cache. */
207 struct sym_cache
*symbol_cache
;
209 /* The list of memory breakpoints. */
210 struct breakpoint
*breakpoints
;
212 /* The list of raw memory breakpoints. */
213 struct raw_breakpoint
*raw_breakpoints
;
215 /* The list of installed fast tracepoints. */
216 struct fast_tracepoint_jump
*fast_tracepoint_jumps
;
218 /* Private target data. */
219 struct process_info_private
*private;
222 /* Return a pointer to the process that corresponds to the current
223 thread (current_inferior). It is an error to call this if there is
224 no current thread selected. */
226 struct process_info
*current_process (void);
227 struct process_info
*get_thread_process (struct thread_info
*);
229 /* Target-specific functions */
231 void initialize_low ();
233 /* From inferiors.c. */
235 extern struct inferior_list all_processes
;
236 extern struct inferior_list all_threads
;
237 extern struct inferior_list all_dlls
;
238 extern int dlls_changed
;
240 void add_inferior_to_list (struct inferior_list
*list
,
241 struct inferior_list_entry
*new_inferior
);
242 void for_each_inferior (struct inferior_list
*list
,
243 void (*action
) (struct inferior_list_entry
*));
245 extern struct thread_info
*current_inferior
;
246 void remove_inferior (struct inferior_list
*list
,
247 struct inferior_list_entry
*entry
);
248 void remove_thread (struct thread_info
*thread
);
249 void add_thread (ptid_t ptid
, void *target_data
);
251 struct process_info
*add_process (int pid
, int attached
);
252 void remove_process (struct process_info
*process
);
253 struct process_info
*find_process_pid (int pid
);
254 int have_started_inferiors_p (void);
255 int have_attached_inferiors_p (void);
257 struct thread_info
*find_thread_ptid (ptid_t ptid
);
259 ptid_t
thread_id_to_gdb_id (ptid_t
);
260 ptid_t
thread_to_gdb_id (struct thread_info
*);
261 ptid_t
gdb_id_to_thread_id (ptid_t
);
262 struct thread_info
*gdb_id_to_thread (unsigned int);
263 void clear_inferiors (void);
264 struct inferior_list_entry
*find_inferior
265 (struct inferior_list
*,
266 int (*func
) (struct inferior_list_entry
*,
269 struct inferior_list_entry
*find_inferior_id (struct inferior_list
*list
,
271 void *inferior_target_data (struct thread_info
*);
272 void set_inferior_target_data (struct thread_info
*, void *);
273 void *inferior_regcache_data (struct thread_info
*);
274 void set_inferior_regcache_data (struct thread_info
*, void *);
275 void add_pid_to_list (struct inferior_list
*list
, unsigned long pid
);
276 int pull_pid_from_list (struct inferior_list
*list
, unsigned long pid
);
278 void loaded_dll (const char *name
, CORE_ADDR base_addr
);
279 void unloaded_dll (const char *name
, CORE_ADDR base_addr
);
281 /* Public variables in server.c */
283 extern ptid_t cont_thread
;
284 extern ptid_t general_thread
;
285 extern ptid_t step_thread
;
287 extern int server_waiting
;
288 extern int debug_threads
;
289 extern int debug_hw_points
;
290 extern int pass_signals
[];
292 extern jmp_buf toplevel
;
294 extern int disable_packet_vCont
;
295 extern int disable_packet_Tthread
;
296 extern int disable_packet_qC
;
297 extern int disable_packet_qfThreadInfo
;
300 extern int multi_process
;
304 #include <winsock2.h>
305 typedef SOCKET gdb_fildes_t
;
307 typedef int gdb_fildes_t
;
310 /* Functions from event-loop.c. */
311 typedef void *gdb_client_data
;
312 typedef int (handler_func
) (int, gdb_client_data
);
313 typedef int (callback_handler_func
) (gdb_client_data
);
315 extern void delete_file_handler (gdb_fildes_t fd
);
316 extern void add_file_handler (gdb_fildes_t fd
, handler_func
*proc
,
317 gdb_client_data client_data
);
318 extern int append_callback_event (callback_handler_func
*proc
,
319 gdb_client_data client_data
);
320 extern void delete_callback_event (int id
);
322 extern void start_event_loop (void);
324 /* Functions from server.c. */
325 extern int handle_serial_event (int err
, gdb_client_data client_data
);
326 extern int handle_target_event (int err
, gdb_client_data client_data
);
328 extern void push_event (ptid_t ptid
, struct target_waitstatus
*status
);
330 /* Functions from hostio.c. */
331 extern int handle_vFile (char *, int, int *);
333 /* Functions from hostio-errno.c. */
334 extern void hostio_last_error_from_errno (char *own_buf
);
336 /* From remote-utils.c */
338 extern int remote_debug
;
339 extern int noack_mode
;
340 extern int transport_is_reliable
;
342 int gdb_connected (void);
344 ptid_t
read_ptid (char *buf
, char **obuf
);
345 char *write_ptid (char *buf
, ptid_t ptid
);
347 int putpkt (char *buf
);
348 int putpkt_binary (char *buf
, int len
);
349 int putpkt_notif (char *buf
);
350 int getpkt (char *buf
);
351 void remote_prepare (char *name
);
352 void remote_open (char *name
);
353 void remote_close (void);
354 void write_ok (char *buf
);
355 void write_enn (char *buf
);
356 void initialize_async_io (void);
357 void enable_async_io (void);
358 void disable_async_io (void);
359 void check_remote_input_interrupt_request (void);
360 void convert_ascii_to_int (const char *from
, unsigned char *to
, int n
);
361 void convert_int_to_ascii (const unsigned char *from
, char *to
, int n
);
362 void new_thread_notify (int id
);
363 void dead_thread_notify (int id
);
364 void prepare_resume_reply (char *buf
, ptid_t ptid
,
365 struct target_waitstatus
*status
);
367 const char *decode_address_to_semicolon (CORE_ADDR
*addrp
, const char *start
);
368 void decode_address (CORE_ADDR
*addrp
, const char *start
, int len
);
369 void decode_m_packet (char *from
, CORE_ADDR
* mem_addr_ptr
,
370 unsigned int *len_ptr
);
371 void decode_M_packet (char *from
, CORE_ADDR
* mem_addr_ptr
,
372 unsigned int *len_ptr
, unsigned char **to_p
);
373 int decode_X_packet (char *from
, int packet_len
, CORE_ADDR
* mem_addr_ptr
,
374 unsigned int *len_ptr
, unsigned char **to_p
);
375 int decode_xfer_write (char *buf
, int packet_len
,
376 CORE_ADDR
*offset
, unsigned int *len
,
377 unsigned char *data
);
378 int decode_search_memory_packet (const char *buf
, int packet_len
,
379 CORE_ADDR
*start_addrp
,
380 CORE_ADDR
*search_space_lenp
,
382 unsigned int *pattern_lenp
);
384 int unhexify (char *bin
, const char *hex
, int count
);
385 int hexify (char *hex
, const char *bin
, int count
);
386 int remote_escape_output (const gdb_byte
*buffer
, int len
,
387 gdb_byte
*out_buf
, int *out_len
,
389 char *unpack_varlen_hex (char *buff
, ULONGEST
*result
);
391 void clear_symbol_cache (struct sym_cache
**symcache_p
);
392 int look_up_one_symbol (const char *name
, CORE_ADDR
*addrp
, int may_ask_gdb
);
394 int relocate_instruction (CORE_ADDR
*to
, CORE_ADDR oldloc
);
396 void monitor_output (const char *msg
);
398 /* Functions from utils.c */
399 #include "common-utils.h"
401 void *xmalloc (size_t) ATTR_MALLOC
;
402 void *xrealloc (void *, size_t);
403 void *xcalloc (size_t, size_t) ATTR_MALLOC
;
404 char *xstrdup (const char *) ATTR_MALLOC
;
405 int xsnprintf (char *str
, size_t size
, const char *format
, ...)
406 ATTR_FORMAT (printf
, 3, 4);;
407 void freeargv (char **argv
);
408 void perror_with_name (const char *string
);
409 void error (const char *string
,...) ATTR_NORETURN
ATTR_FORMAT (printf
, 1, 2);
410 void fatal (const char *string
,...) ATTR_NORETURN
ATTR_FORMAT (printf
, 1, 2);
411 void warning (const char *string
,...) ATTR_FORMAT (printf
, 1, 2);
412 char *paddress (CORE_ADDR addr
);
413 char *pulongest (ULONGEST u
);
414 char *plongest (LONGEST l
);
415 char *phex_nz (ULONGEST l
, int sizeof_l
);
416 char *pfildes (gdb_fildes_t fd
);
418 #include "gdb_assert.h"
420 /* Maximum number of bytes to read/write at once. The value here
421 is chosen to fill up a packet (the headers account for the 32). */
422 #define MAXBUFBYTES(N) (((N)-32)/2)
424 /* Buffer sizes for transferring memory, registers, etc. Set to a constant
425 value to accomodate multiple register formats. This value must be at least
426 as large as the largest register set supported by gdbserver. */
427 #define PBUFSIZ 16384
429 /* Functions from tracepoint.c */
431 int in_process_agent_loaded (void);
433 void initialize_tracepoint (void);
436 extern int disconnected_tracing
;
438 void tracepoint_look_up_symbols (void);
440 void stop_tracing (void);
442 int handle_tracepoint_general_set (char *own_buf
);
443 int handle_tracepoint_query (char *own_buf
);
445 int tracepoint_finished_step (struct thread_info
*tinfo
, CORE_ADDR stop_pc
);
446 int tracepoint_was_hit (struct thread_info
*tinfo
, CORE_ADDR stop_pc
);
448 void release_while_stepping_state_list (struct thread_info
*tinfo
);
450 extern int current_traceframe
;
452 int in_readonly_region (CORE_ADDR addr
, ULONGEST length
);
453 int traceframe_read_mem (int tfnum
, CORE_ADDR addr
,
454 unsigned char *buf
, ULONGEST length
,
456 int fetch_traceframe_registers (int tfnum
,
457 struct regcache
*regcache
,
460 int traceframe_read_sdata (int tfnum
, ULONGEST offset
,
461 unsigned char *buf
, ULONGEST length
,
464 int traceframe_read_info (int tfnum
, struct buffer
*buffer
);
466 /* If a thread is determined to be collecting a fast tracepoint, this
467 structure holds the collect status. */
469 struct fast_tpoint_collect_status
471 /* The tracepoint that is presently being collected. */
473 CORE_ADDR tpoint_addr
;
475 /* The address range in the jump pad of where the original
476 instruction the tracepoint jump was inserted was relocated
478 CORE_ADDR adjusted_insn_addr
;
479 CORE_ADDR adjusted_insn_addr_end
;
482 int fast_tracepoint_collecting (CORE_ADDR thread_area
,
484 struct fast_tpoint_collect_status
*status
);
485 void force_unlock_trace_buffer (void);
487 int handle_tracepoint_bkpts (struct thread_info
*tinfo
, CORE_ADDR stop_pc
);
489 #ifdef IN_PROCESS_AGENT
490 void initialize_low_tracepoint (void);
491 void supply_fast_tracepoint_registers (struct regcache
*regcache
,
492 const unsigned char *regs
);
493 void supply_static_tracepoint_registers (struct regcache
*regcache
,
494 const unsigned char *regs
,
497 void stop_tracing (void);
500 /* Bytecode compilation function vector. */
504 void (*emit_prologue
) (void);
505 void (*emit_epilogue
) (void);
506 void (*emit_add
) (void);
507 void (*emit_sub
) (void);
508 void (*emit_mul
) (void);
509 void (*emit_lsh
) (void);
510 void (*emit_rsh_signed
) (void);
511 void (*emit_rsh_unsigned
) (void);
512 void (*emit_ext
) (int arg
);
513 void (*emit_log_not
) (void);
514 void (*emit_bit_and
) (void);
515 void (*emit_bit_or
) (void);
516 void (*emit_bit_xor
) (void);
517 void (*emit_bit_not
) (void);
518 void (*emit_equal
) (void);
519 void (*emit_less_signed
) (void);
520 void (*emit_less_unsigned
) (void);
521 void (*emit_ref
) (int size
);
522 void (*emit_if_goto
) (int *offset_p
, int *size_p
);
523 void (*emit_goto
) (int *offset_p
, int *size_p
);
524 void (*write_goto_address
) (CORE_ADDR from
, CORE_ADDR to
, int size
);
525 void (*emit_const
) (LONGEST num
);
526 void (*emit_call
) (CORE_ADDR fn
);
527 void (*emit_reg
) (int reg
);
528 void (*emit_pop
) (void);
529 void (*emit_stack_flush
) (void);
530 void (*emit_zero_ext
) (int arg
);
531 void (*emit_swap
) (void);
532 void (*emit_stack_adjust
) (int n
);
534 /* Emit code for a generic function that takes one fixed integer
535 argument and returns a 64-bit int (for instance, tsv getter). */
536 void (*emit_int_call_1
) (CORE_ADDR fn
, int arg1
);
538 /* Emit code for a generic function that takes one fixed integer
539 argument and a 64-bit int from the top of the stack, and returns
540 nothing (for instance, tsv setter). */
541 void (*emit_void_call_2
) (CORE_ADDR fn
, int arg1
);
544 /* Returns the address of the get_raw_reg function in the IPA. */
545 CORE_ADDR
get_raw_reg_func_addr (void);
547 CORE_ADDR current_insn_ptr
;
550 /* Version information, from version.c. */
551 extern const char version
[];
552 extern const char host_name
[];
554 #endif /* SERVER_H */