1 /* Common definitions for remote server for GDB.
2 Copyright (C) 1993, 1995, 1997-2000, 2002-2012 Free Software
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/>. */
24 #include "build-gnulib-gdbserver/config.h"
27 #include "wincecompat.h"
45 /* On some systems such as MinGW, alloca is declared in malloc.h
46 (there is no alloca.h). */
51 #if !HAVE_DECL_STRERROR
53 extern char *strerror (int); /* X3.159-1989 4.11.6.2 */
59 extern void perror (const char *);
63 #if !HAVE_DECL_VASPRINTF
64 extern int vasprintf(char **strp
, const char *fmt
, va_list ap
);
66 #if !HAVE_DECL_VSNPRINTF
67 int vsnprintf(char *str
, size_t size
, const char *format
, va_list ap
);
71 #if defined(__GNUC__) && (__GNUC__ > 2 \
72 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7))
73 #define ATTR_NORETURN __attribute__ ((noreturn))
75 #define ATTR_NORETURN /* nothing */
80 #if defined(__GNUC__) && (__GNUC__ > 2 \
81 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 4))
82 #define ATTR_FORMAT(type, x, y) __attribute__ ((format(type, x, y)))
84 #define ATTR_FORMAT(type, x, y) /* nothing */
89 #if defined(__GNUC__) && (__GNUC__ >= 3)
90 #define ATTR_MALLOC __attribute__ ((__malloc__))
92 #define ATTR_MALLOC /* nothing */
96 /* Define underscore macro, if not available, to be able to use it inside
97 code shared with gdb in common directory. */
99 #define _(String) (String)
102 #ifdef IN_PROCESS_AGENT
105 # define PROG "gdbserver"
108 /* A type used for binary buffers. */
109 typedef unsigned char gdb_byte
;
113 #include "xml-utils.h"
114 #include "gdb_locale.h"
116 /* FIXME: This should probably be autoconf'd for. It's an integer type at
117 least the size of a (void *). */
118 typedef long long CORE_ADDR
;
120 typedef long long LONGEST
;
121 typedef unsigned long long ULONGEST
;
123 /* Generic information for tracking a list of ``inferiors'' - threads,
127 struct inferior_list_entry
*head
;
128 struct inferior_list_entry
*tail
;
130 struct inferior_list_entry
133 struct inferior_list_entry
*next
;
140 #include "regcache.h"
141 #include "gdb/signals.h"
142 #include "gdb_signals.h"
144 #include "mem-break.h"
145 #include "gdbthread.h"
149 struct inferior_list_entry entry
;
156 struct raw_breakpoint
;
157 struct fast_tracepoint_jump
;
158 struct process_info_private
;
162 struct inferior_list_entry head
;
164 /* Nonzero if this child process was attached rather than
168 /* True if GDB asked us to detach from this process, but we remained
172 /* The symbol cache. */
173 struct sym_cache
*symbol_cache
;
175 /* The list of memory breakpoints. */
176 struct breakpoint
*breakpoints
;
178 /* The list of raw memory breakpoints. */
179 struct raw_breakpoint
*raw_breakpoints
;
181 /* The list of installed fast tracepoints. */
182 struct fast_tracepoint_jump
*fast_tracepoint_jumps
;
184 /* Private target data. */
185 struct process_info_private
*private;
188 /* Return a pointer to the process that corresponds to the current
189 thread (current_inferior). It is an error to call this if there is
190 no current thread selected. */
192 struct process_info
*current_process (void);
193 struct process_info
*get_thread_process (struct thread_info
*);
195 /* Target-specific functions */
197 void initialize_low ();
199 /* From inferiors.c. */
201 extern struct inferior_list all_processes
;
202 extern struct inferior_list all_dlls
;
203 extern int dlls_changed
;
204 extern void clear_dlls (void);
206 void add_inferior_to_list (struct inferior_list
*list
,
207 struct inferior_list_entry
*new_inferior
);
208 void for_each_inferior (struct inferior_list
*list
,
209 void (*action
) (struct inferior_list_entry
*));
211 extern struct thread_info
*current_inferior
;
212 void remove_inferior (struct inferior_list
*list
,
213 struct inferior_list_entry
*entry
);
215 struct process_info
*add_process (int pid
, int attached
);
216 void remove_process (struct process_info
*process
);
217 struct process_info
*find_process_pid (int pid
);
218 int have_started_inferiors_p (void);
219 int have_attached_inferiors_p (void);
221 ptid_t
thread_id_to_gdb_id (ptid_t
);
222 ptid_t
thread_to_gdb_id (struct thread_info
*);
223 ptid_t
gdb_id_to_thread_id (ptid_t
);
225 void clear_inferiors (void);
226 struct inferior_list_entry
*find_inferior
227 (struct inferior_list
*,
228 int (*func
) (struct inferior_list_entry
*,
231 struct inferior_list_entry
*find_inferior_id (struct inferior_list
*list
,
233 void *inferior_target_data (struct thread_info
*);
234 void set_inferior_target_data (struct thread_info
*, void *);
235 void *inferior_regcache_data (struct thread_info
*);
236 void set_inferior_regcache_data (struct thread_info
*, void *);
238 void loaded_dll (const char *name
, CORE_ADDR base_addr
);
239 void unloaded_dll (const char *name
, CORE_ADDR base_addr
);
241 /* Public variables in server.c */
243 extern ptid_t cont_thread
;
244 extern ptid_t general_thread
;
246 extern int server_waiting
;
247 extern int debug_threads
;
248 extern int debug_hw_points
;
249 extern int pass_signals
[];
250 extern int program_signals
[];
251 extern int program_signals_p
;
253 extern jmp_buf toplevel
;
255 extern int disable_packet_vCont
;
256 extern int disable_packet_Tthread
;
257 extern int disable_packet_qC
;
258 extern int disable_packet_qfThreadInfo
;
261 extern int multi_process
;
264 extern int disable_randomization
;
267 #include <winsock2.h>
268 typedef SOCKET gdb_fildes_t
;
270 typedef int gdb_fildes_t
;
273 /* Functions from event-loop.c. */
274 typedef void *gdb_client_data
;
275 typedef int (handler_func
) (int, gdb_client_data
);
276 typedef int (callback_handler_func
) (gdb_client_data
);
278 extern void delete_file_handler (gdb_fildes_t fd
);
279 extern void add_file_handler (gdb_fildes_t fd
, handler_func
*proc
,
280 gdb_client_data client_data
);
281 extern int append_callback_event (callback_handler_func
*proc
,
282 gdb_client_data client_data
);
283 extern void delete_callback_event (int id
);
285 extern void start_event_loop (void);
287 /* Functions from server.c. */
288 extern int handle_serial_event (int err
, gdb_client_data client_data
);
289 extern int handle_target_event (int err
, gdb_client_data client_data
);
291 extern void push_event (ptid_t ptid
, struct target_waitstatus
*status
);
293 /* Functions from hostio.c. */
294 extern int handle_vFile (char *, int, int *);
296 /* Functions from hostio-errno.c. */
297 extern void hostio_last_error_from_errno (char *own_buf
);
299 /* From remote-utils.c */
301 extern int remote_debug
;
302 extern int noack_mode
;
303 extern int transport_is_reliable
;
305 int gdb_connected (void);
307 #define STDIO_CONNECTION_NAME "stdio"
308 int remote_connection_is_stdio (void);
310 ptid_t
read_ptid (char *buf
, char **obuf
);
311 char *write_ptid (char *buf
, ptid_t ptid
);
313 int putpkt (char *buf
);
314 int putpkt_binary (char *buf
, int len
);
315 int putpkt_notif (char *buf
);
316 int getpkt (char *buf
);
317 void remote_prepare (char *name
);
318 void remote_open (char *name
);
319 void remote_close (void);
320 void write_ok (char *buf
);
321 void write_enn (char *buf
);
322 void initialize_async_io (void);
323 void enable_async_io (void);
324 void disable_async_io (void);
325 void check_remote_input_interrupt_request (void);
326 void convert_ascii_to_int (const char *from
, unsigned char *to
, int n
);
327 void convert_int_to_ascii (const unsigned char *from
, char *to
, int n
);
328 void new_thread_notify (int id
);
329 void dead_thread_notify (int id
);
330 void prepare_resume_reply (char *buf
, ptid_t ptid
,
331 struct target_waitstatus
*status
);
333 const char *decode_address_to_semicolon (CORE_ADDR
*addrp
, const char *start
);
334 void decode_address (CORE_ADDR
*addrp
, const char *start
, int len
);
335 void decode_m_packet (char *from
, CORE_ADDR
* mem_addr_ptr
,
336 unsigned int *len_ptr
);
337 void decode_M_packet (char *from
, CORE_ADDR
* mem_addr_ptr
,
338 unsigned int *len_ptr
, unsigned char **to_p
);
339 int decode_X_packet (char *from
, int packet_len
, CORE_ADDR
* mem_addr_ptr
,
340 unsigned int *len_ptr
, unsigned char **to_p
);
341 int decode_xfer_write (char *buf
, int packet_len
,
342 CORE_ADDR
*offset
, unsigned int *len
,
343 unsigned char *data
);
344 int decode_search_memory_packet (const char *buf
, int packet_len
,
345 CORE_ADDR
*start_addrp
,
346 CORE_ADDR
*search_space_lenp
,
348 unsigned int *pattern_lenp
);
350 int unhexify (char *bin
, const char *hex
, int count
);
351 int hexify (char *hex
, const char *bin
, int count
);
352 int remote_escape_output (const gdb_byte
*buffer
, int len
,
353 gdb_byte
*out_buf
, int *out_len
,
355 char *unpack_varlen_hex (char *buff
, ULONGEST
*result
);
357 void clear_symbol_cache (struct sym_cache
**symcache_p
);
358 int look_up_one_symbol (const char *name
, CORE_ADDR
*addrp
, int may_ask_gdb
);
360 int relocate_instruction (CORE_ADDR
*to
, CORE_ADDR oldloc
);
362 void monitor_output (const char *msg
);
364 /* Functions from utils.c */
365 #include "common-utils.h"
367 void *xmalloc (size_t) ATTR_MALLOC
;
368 void *xrealloc (void *, size_t);
369 void *xcalloc (size_t, size_t) ATTR_MALLOC
;
370 char *xstrdup (const char *) ATTR_MALLOC
;
371 int xsnprintf (char *str
, size_t size
, const char *format
, ...)
372 ATTR_FORMAT (printf
, 3, 4);;
373 void freeargv (char **argv
);
374 void perror_with_name (const char *string
);
375 void error (const char *string
,...) ATTR_NORETURN
ATTR_FORMAT (printf
, 1, 2);
376 void fatal (const char *string
,...) ATTR_NORETURN
ATTR_FORMAT (printf
, 1, 2);
377 void warning (const char *string
,...) ATTR_FORMAT (printf
, 1, 2);
378 char *paddress (CORE_ADDR addr
);
379 char *pulongest (ULONGEST u
);
380 char *plongest (LONGEST l
);
381 char *phex_nz (ULONGEST l
, int sizeof_l
);
382 char *pfildes (gdb_fildes_t fd
);
384 #include "gdb_assert.h"
386 /* Maximum number of bytes to read/write at once. The value here
387 is chosen to fill up a packet (the headers account for the 32). */
388 #define MAXBUFBYTES(N) (((N)-32)/2)
390 /* Buffer sizes for transferring memory, registers, etc. Set to a constant
391 value to accomodate multiple register formats. This value must be at least
392 as large as the largest register set supported by gdbserver. */
393 #define PBUFSIZ 16384
395 /* Functions from tracepoint.c */
397 /* Size for a small buffer to report problems from the in-process
398 agent back to GDBserver. */
399 #define IPA_BUFSIZ 100
401 void initialize_tracepoint (void);
404 extern int disconnected_tracing
;
406 void tracepoint_look_up_symbols (void);
408 void stop_tracing (void);
410 int handle_tracepoint_general_set (char *own_buf
);
411 int handle_tracepoint_query (char *own_buf
);
413 int tracepoint_finished_step (struct thread_info
*tinfo
, CORE_ADDR stop_pc
);
414 int tracepoint_was_hit (struct thread_info
*tinfo
, CORE_ADDR stop_pc
);
416 void release_while_stepping_state_list (struct thread_info
*tinfo
);
418 extern int current_traceframe
;
420 int in_readonly_region (CORE_ADDR addr
, ULONGEST length
);
421 int traceframe_read_mem (int tfnum
, CORE_ADDR addr
,
422 unsigned char *buf
, ULONGEST length
,
424 int fetch_traceframe_registers (int tfnum
,
425 struct regcache
*regcache
,
428 int traceframe_read_sdata (int tfnum
, ULONGEST offset
,
429 unsigned char *buf
, ULONGEST length
,
432 int traceframe_read_info (int tfnum
, struct buffer
*buffer
);
434 /* If a thread is determined to be collecting a fast tracepoint, this
435 structure holds the collect status. */
437 struct fast_tpoint_collect_status
439 /* The tracepoint that is presently being collected. */
441 CORE_ADDR tpoint_addr
;
443 /* The address range in the jump pad of where the original
444 instruction the tracepoint jump was inserted was relocated
446 CORE_ADDR adjusted_insn_addr
;
447 CORE_ADDR adjusted_insn_addr_end
;
450 int fast_tracepoint_collecting (CORE_ADDR thread_area
,
452 struct fast_tpoint_collect_status
*status
);
453 void force_unlock_trace_buffer (void);
455 int handle_tracepoint_bkpts (struct thread_info
*tinfo
, CORE_ADDR stop_pc
);
457 #ifdef IN_PROCESS_AGENT
458 void initialize_low_tracepoint (void);
459 void supply_fast_tracepoint_registers (struct regcache
*regcache
,
460 const unsigned char *regs
);
461 void supply_static_tracepoint_registers (struct regcache
*regcache
,
462 const unsigned char *regs
,
464 void set_trampoline_buffer_space (CORE_ADDR begin
, CORE_ADDR end
,
467 void stop_tracing (void);
469 int claim_trampoline_space (ULONGEST used
, CORE_ADDR
*trampoline
);
470 int have_fast_tracepoint_trampoline_buffer (char *msgbuf
);
471 void gdb_agent_about_to_close (int pid
);
476 /* Do memory copies for bytecodes. */
477 /* Do the recording of memory blocks for actions and bytecodes. */
479 int agent_mem_read (struct traceframe
*tframe
,
480 unsigned char *to
, CORE_ADDR from
,
483 LONGEST
agent_get_trace_state_variable_value (int num
);
484 void agent_set_trace_state_variable_value (int num
, LONGEST val
);
486 /* Record the value of a trace state variable. */
488 int agent_tsv_read (struct traceframe
*tframe
, int n
);
489 int agent_mem_read_string (struct traceframe
*tframe
,
494 /* Bytecode compilation function vector. */
498 void (*emit_prologue
) (void);
499 void (*emit_epilogue
) (void);
500 void (*emit_add
) (void);
501 void (*emit_sub
) (void);
502 void (*emit_mul
) (void);
503 void (*emit_lsh
) (void);
504 void (*emit_rsh_signed
) (void);
505 void (*emit_rsh_unsigned
) (void);
506 void (*emit_ext
) (int arg
);
507 void (*emit_log_not
) (void);
508 void (*emit_bit_and
) (void);
509 void (*emit_bit_or
) (void);
510 void (*emit_bit_xor
) (void);
511 void (*emit_bit_not
) (void);
512 void (*emit_equal
) (void);
513 void (*emit_less_signed
) (void);
514 void (*emit_less_unsigned
) (void);
515 void (*emit_ref
) (int size
);
516 void (*emit_if_goto
) (int *offset_p
, int *size_p
);
517 void (*emit_goto
) (int *offset_p
, int *size_p
);
518 void (*write_goto_address
) (CORE_ADDR from
, CORE_ADDR to
, int size
);
519 void (*emit_const
) (LONGEST num
);
520 void (*emit_call
) (CORE_ADDR fn
);
521 void (*emit_reg
) (int reg
);
522 void (*emit_pop
) (void);
523 void (*emit_stack_flush
) (void);
524 void (*emit_zero_ext
) (int arg
);
525 void (*emit_swap
) (void);
526 void (*emit_stack_adjust
) (int n
);
528 /* Emit code for a generic function that takes one fixed integer
529 argument and returns a 64-bit int (for instance, tsv getter). */
530 void (*emit_int_call_1
) (CORE_ADDR fn
, int arg1
);
532 /* Emit code for a generic function that takes one fixed integer
533 argument and a 64-bit int from the top of the stack, and returns
534 nothing (for instance, tsv setter). */
535 void (*emit_void_call_2
) (CORE_ADDR fn
, int arg1
);
537 /* Emit code specialized for common combinations of compare followed
539 void (*emit_eq_goto
) (int *offset_p
, int *size_p
);
540 void (*emit_ne_goto
) (int *offset_p
, int *size_p
);
541 void (*emit_lt_goto
) (int *offset_p
, int *size_p
);
542 void (*emit_le_goto
) (int *offset_p
, int *size_p
);
543 void (*emit_gt_goto
) (int *offset_p
, int *size_p
);
544 void (*emit_ge_goto
) (int *offset_p
, int *size_p
);
547 /* Returns the address of the get_raw_reg function in the IPA. */
548 CORE_ADDR
get_raw_reg_func_addr (void);
549 /* Returns the address of the get_trace_state_variable_value
550 function in the IPA. */
551 CORE_ADDR
get_get_tsv_func_addr (void);
552 /* Returns the address of the set_trace_state_variable_value
553 function in the IPA. */
554 CORE_ADDR
get_set_tsv_func_addr (void);
556 CORE_ADDR current_insn_ptr
;
559 /* Version information, from version.c. */
560 extern const char version
[];
561 extern const char host_name
[];
563 #endif /* SERVER_H */