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 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"
41 #if !HAVE_DECL_STRERROR
43 extern char *strerror (int); /* X3.159-1989 4.11.6.2 */
49 extern void perror (const char *);
54 extern void *memmem (const void *, size_t , const void *, size_t);
58 #if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7))
59 #define ATTR_NORETURN __attribute__ ((noreturn))
61 #define ATTR_NORETURN /* nothing */
66 #if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 4))
67 #define ATTR_FORMAT(type, x, y) __attribute__ ((format(type, x, y)))
69 #define ATTR_FORMAT(type, x, y) /* nothing */
74 #if defined(__GNUC__) && (__GNUC__ >= 3)
75 #define ATTR_MALLOC __attribute__ ((__malloc__))
77 #define ATTR_MALLOC /* nothing */
81 /* A type used for binary buffers. */
82 typedef unsigned char gdb_byte;
84 /* FIXME: This should probably be autoconf'd for. It's an integer type at
85 least the size of a (void *). */
86 typedef long long CORE_ADDR;
88 typedef unsigned long long ULONGEST;
90 /* The ptid struct is a collection of the various "ids" necessary
91 for identifying the inferior. This consists of the process id
92 (pid), thread id (tid), and other fields necessary for uniquely
93 identifying the inferior process/thread being debugged. When
94 manipulating ptids, the constructors, accessors, and predicate
95 declared in server.h should be used. These are as follows:
97 ptid_build - Make a new ptid from a pid, lwp, and tid.
98 pid_to_ptid - Make a new ptid from just a pid.
99 ptid_get_pid - Fetch the pid component of a ptid.
100 ptid_get_lwp - Fetch the lwp component of a ptid.
101 ptid_get_tid - Fetch the tid component of a ptid.
102 ptid_equal - Test to see if two ptids are equal.
104 Please do NOT access the struct ptid members directly (except, of
105 course, in the implementation of the above ptid manipulation
113 /* Lightweight process id */
120 typedef struct ptid ptid_t;
122 /* The -1 ptid, often used to indicate either an error condition or a
123 "don't care" condition, i.e, "run all threads". */
124 extern ptid_t minus_one_ptid;
126 /* The null or zero ptid, often used to indicate no process. */
127 extern ptid_t null_ptid;
129 /* Attempt to find and return an existing ptid with the given PID,
130 LWP, and TID components. If none exists, create a new one and
132 ptid_t ptid_build (int pid, long lwp, long tid);
134 /* Create a ptid from just a pid. */
135 ptid_t pid_to_ptid (int pid);
137 /* Fetch the pid (process id) component from a ptid. */
138 int ptid_get_pid (ptid_t ptid);
140 /* Fetch the lwp (lightweight process) component from a ptid. */
141 long ptid_get_lwp (ptid_t ptid);
143 /* Fetch the tid (thread id) component from a ptid. */
144 long ptid_get_tid (ptid_t ptid);
146 /* Compare two ptids to see if they are equal. */
147 extern int ptid_equal (ptid_t p1, ptid_t p2);
149 /* Return true if this ptid represents a process id. */
150 extern int ptid_is_pid (ptid_t ptid);
152 /* Generic information for tracking a list of ``inferiors'' - threads,
156 struct inferior_list_entry *head;
157 struct inferior_list_entry *tail;
159 struct inferior_list_entry
162 struct inferior_list_entry *next;
165 /* Opaque type for user-visible threads. */
170 struct inferior_list_entry entry;
177 struct process_info_private;
181 struct inferior_list_entry head;
185 /* The symbol cache. */
186 struct sym_cache *symbol_cache;
188 /* If this flag has been set, assume symbol cache misses are
190 int all_symbols_looked_up;
192 /* The list of memory breakpoints. */
193 struct breakpoint *breakpoints;
195 /* Private target data. */
196 struct process_info_private *private;
199 /* Return a pointer to the process that corresponds to the current
200 thread (current_inferior). It is an error to call this if there is
201 no current thread selected. */
203 struct process_info *current_process (void);
205 #include "regcache.h"
206 #include "gdb/signals.h"
207 #include "gdb_signals.h"
209 #include "mem-break.h"
211 /* Target-specific functions */
213 void initialize_low ();
215 /* From inferiors.c. */
217 extern struct inferior_list all_processes;
218 extern struct inferior_list all_threads;
219 extern struct inferior_list all_dlls;
220 extern int dlls_changed;
222 void initialize_inferiors (void);
224 void add_inferior_to_list (struct inferior_list *list,
225 struct inferior_list_entry *new_inferior);
226 void for_each_inferior (struct inferior_list *list,
227 void (*action) (struct inferior_list_entry *));
229 extern struct thread_info *current_inferior;
230 void remove_inferior (struct inferior_list *list,
231 struct inferior_list_entry *entry);
232 void remove_thread (struct thread_info *thread);
233 void add_thread (ptid_t ptid, void *target_data);
235 struct process_info *add_process (int pid, int attached);
236 void remove_process (struct process_info *process);
237 struct process_info *find_process_pid (int pid);
239 struct thread_info *find_thread_pid (ptid_t ptid);
241 ptid_t thread_id_to_gdb_id (ptid_t);
242 ptid_t thread_to_gdb_id (struct thread_info *);
243 ptid_t gdb_id_to_thread_id (ptid_t);
244 struct thread_info *gdb_id_to_thread (unsigned int);
245 void clear_inferiors (void);
246 struct inferior_list_entry *find_inferior
247 (struct inferior_list *,
248 int (*func) (struct inferior_list_entry *,
251 struct inferior_list_entry *find_inferior_id (struct inferior_list *list,
253 void *inferior_target_data (struct thread_info *);
254 void set_inferior_target_data (struct thread_info *, void *);
255 void *inferior_regcache_data (struct thread_info *);
256 void set_inferior_regcache_data (struct thread_info *, void *);
257 void add_pid_to_list (struct inferior_list *list, unsigned long pid);
258 int pull_pid_from_list (struct inferior_list *list, unsigned long pid);
260 void loaded_dll (const char *name, CORE_ADDR base_addr);
261 void unloaded_dll (const char *name, CORE_ADDR base_addr);
263 /* Public variables in server.c */
265 extern ptid_t cont_thread;
266 extern ptid_t general_thread;
267 extern ptid_t step_thread;
269 extern int server_waiting;
270 extern int debug_threads;
271 extern int pass_signals[];
273 extern jmp_buf toplevel;
275 extern int disable_packet_vCont;
276 extern int disable_packet_Tthread;
277 extern int disable_packet_qC;
278 extern int disable_packet_qfThreadInfo;
280 extern int multi_process;
283 /* Functions from event-loop.c. */
284 typedef void *gdb_client_data;
285 typedef void (handler_func) (int, gdb_client_data);
287 extern void delete_file_handler (int fd);
288 extern void add_file_handler (int fd, handler_func *proc,
289 gdb_client_data client_data);
291 extern void start_event_loop (void);
293 /* Functions from server.c. */
294 extern void handle_serial_event (int err, gdb_client_data client_data);
295 extern void handle_target_event (int err, gdb_client_data client_data);
297 extern void push_event (ptid_t ptid, struct target_waitstatus *status);
299 /* Functions from hostio.c. */
300 extern int handle_vFile (char *, int, int *);
302 /* Functions from hostio-errno.c. */
303 extern void hostio_last_error_from_errno (char *own_buf);
305 /* From remote-utils.c */
307 extern int remote_debug;
308 extern int all_symbols_looked_up;
309 extern int noack_mode;
310 extern int transport_is_reliable;
312 ptid_t read_ptid (char *buf, char **obuf);
313 char *write_ptid (char *buf, ptid_t ptid);
315 int putpkt (char *buf);
316 int putpkt_binary (char *buf, int len);
317 int putpkt_notif (char *buf);
318 int getpkt (char *buf);
319 void remote_open (char *name);
320 void remote_close (void);
321 void write_ok (char *buf);
322 void write_enn (char *buf);
323 void initialize_async_io (void);
324 void enable_async_io (void);
325 void disable_async_io (void);
326 void check_remote_input_interrupt_request (void);
327 void convert_ascii_to_int (char *from, unsigned char *to, int n);
328 void convert_int_to_ascii (unsigned char *from, char *to, int n);
329 void new_thread_notify (int id);
330 void dead_thread_notify (int id);
331 void prepare_resume_reply (char *buf, ptid_t ptid,
332 struct target_waitstatus *status);
334 const char *decode_address_to_semicolon (CORE_ADDR *addrp, const char *start);
335 void decode_address (CORE_ADDR *addrp, const char *start, int len);
336 void decode_m_packet (char *from, CORE_ADDR * mem_addr_ptr,
337 unsigned int *len_ptr);
338 void decode_M_packet (char *from, CORE_ADDR * mem_addr_ptr,
339 unsigned int *len_ptr, unsigned char *to);
340 int decode_X_packet (char *from, int packet_len, CORE_ADDR * mem_addr_ptr,
341 unsigned int *len_ptr, unsigned char *to);
342 int decode_xfer_write (char *buf, int packet_len, char **annex,
343 CORE_ADDR *offset, unsigned int *len,
344 unsigned char *data);
345 int decode_search_memory_packet (const char *buf, int packet_len,
346 CORE_ADDR *start_addrp,
347 CORE_ADDR *search_space_lenp,
348 gdb_byte *pattern, 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,
356 void clear_symbol_cache (struct sym_cache **symcache_p);
357 int look_up_one_symbol (const char *name, CORE_ADDR *addrp);
359 void monitor_output (const char *msg);
361 char *xml_escape_text (const char *text);
363 /* Simple growing buffer. */
368 size_t buffer_size; /* allocated size */
369 size_t used_size; /* actually used size */
372 /* Append DATA of size SIZE to the end of BUFFER. Grows the buffer to
373 accommodate the new data. */
374 void buffer_grow (struct buffer *buffer, const char *data, size_t size);
376 /* Release any memory held by BUFFER. */
377 void buffer_free (struct buffer *buffer);
379 /* Initialize BUFFER. BUFFER holds no memory afterwards. */
380 void buffer_init (struct buffer *buffer);
382 /* Return a pointer into BUFFER data, effectivelly transfering
383 ownership of the buffer memory to the caller. Calling buffer_free
384 afterwards has no effect on the returned data. */
385 char* buffer_finish (struct buffer *buffer);
387 /* Simple printf to BUFFER function. Current implemented formatters:
388 %s - grow an xml escaped text in OBSTACK. */
389 void buffer_xml_printf (struct buffer *buffer, const char *format, ...)
390 ATTR_FORMAT (printf, 2, 3);;
392 #define buffer_grow_str(BUFFER,STRING) \
393 buffer_grow (BUFFER, STRING, strlen (STRING))
394 #define buffer_grow_str0(BUFFER,STRING) \
395 buffer_grow (BUFFER, STRING, strlen (STRING) + 1)
397 /* Functions from utils.c */
399 void *xmalloc (size_t) ATTR_MALLOC;
400 void *xcalloc (size_t, size_t) ATTR_MALLOC;
401 char *xstrdup (const char *) ATTR_MALLOC;
402 void freeargv (char **argv);
403 void perror_with_name (const char *string);
404 void error (const char *string,...) ATTR_NORETURN ATTR_FORMAT (printf, 1, 2);
405 void fatal (const char *string,...) ATTR_NORETURN ATTR_FORMAT (printf, 1, 2);
406 void warning (const char *string,...) ATTR_FORMAT (printf, 1, 2);
408 /* Maximum number of bytes to read/write at once. The value here
409 is chosen to fill up a packet (the headers account for the 32). */
410 #define MAXBUFBYTES(N) (((N)-32)/2)
412 /* Buffer sizes for transferring memory, registers, etc. Set to a constant
413 value to accomodate multiple register formats. This value must be at least
414 as large as the largest register set supported by gdbserver. */
415 #define PBUFSIZ 16384
417 /* Version information, from version.c. */
418 extern const char version[];
419 extern const char host_name[];
421 #endif /* SERVER_H */