1 /* Remote target communications for serial-line targets in custom GDB protocol
3 Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
4 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
5 Free Software Foundation, Inc.
7 This file is part of GDB.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>. */
22 /* See the GDB User Guide for details of the GDB remote protocol. */
25 #include "gdb_string.h"
31 #include "exceptions.h"
33 /*#include "terminal.h" */
36 #include "gdb-stabs.h"
37 #include "gdbthread.h"
41 #include "gdb_assert.h"
44 #include "cli/cli-decode.h"
45 #include "cli/cli-setshow.h"
46 #include "target-descriptions.h"
51 #include "event-loop.h"
52 #include "event-top.h"
58 #include "gdbcore.h" /* for exec_bfd */
60 #include "remote-fileio.h"
61 #include "gdb/fileio.h"
63 #include "memory-map.h"
65 /* The size to align memory write packets, when practical. The protocol
66 does not guarantee any alignment, and gdb will generate short
67 writes and unaligned writes, but even as a best-effort attempt this
68 can improve bulk transfers. For instance, if a write is misaligned
69 relative to the target's data bus, the stub may need to make an extra
70 round trip fetching data from the target. This doesn't make a
71 huge difference, but it's easy to do, so we try to be helpful.
73 The alignment chosen is arbitrary; usually data bus width is
74 important here, not the possibly larger cache line size. */
75 enum { REMOTE_ALIGN_WRITES
= 16 };
77 /* Prototypes for local functions. */
78 static void cleanup_sigint_signal_handler (void *dummy
);
79 static void initialize_sigint_signal_handler (void);
80 static int getpkt_sane (char **buf
, long *sizeof_buf
, int forever
);
82 static void handle_remote_sigint (int);
83 static void handle_remote_sigint_twice (int);
84 static void async_remote_interrupt (gdb_client_data
);
85 void async_remote_interrupt_twice (gdb_client_data
);
87 static void remote_files_info (struct target_ops
*ignore
);
89 static void remote_prepare_to_store (struct regcache
*regcache
);
91 static void remote_fetch_registers (struct regcache
*regcache
, int regno
);
93 static void remote_resume (ptid_t ptid
, int step
,
94 enum target_signal siggnal
);
95 static void remote_async_resume (ptid_t ptid
, int step
,
96 enum target_signal siggnal
);
97 static void remote_open (char *name
, int from_tty
);
98 static void remote_async_open (char *name
, int from_tty
);
100 static void extended_remote_open (char *name
, int from_tty
);
101 static void extended_remote_async_open (char *name
, int from_tty
);
103 static void remote_open_1 (char *, int, struct target_ops
*, int extended_p
,
106 static void remote_close (int quitting
);
108 static void remote_store_registers (struct regcache
*regcache
, int regno
);
110 static void remote_mourn (void);
111 static void remote_async_mourn (void);
113 static void extended_remote_restart (void);
115 static void extended_remote_mourn (void);
117 static void remote_mourn_1 (struct target_ops
*);
119 static void remote_send (char **buf
, long *sizeof_buf_p
);
121 static int readchar (int timeout
);
123 static ptid_t
remote_wait (ptid_t ptid
,
124 struct target_waitstatus
*status
);
125 static ptid_t
remote_async_wait (ptid_t ptid
,
126 struct target_waitstatus
*status
);
128 static void remote_kill (void);
129 static void remote_async_kill (void);
131 static int tohex (int nib
);
133 static void remote_detach (char *args
, int from_tty
);
135 static void remote_interrupt (int signo
);
137 static void remote_interrupt_twice (int signo
);
139 static void interrupt_query (void);
141 static void set_thread (int, int);
143 static int remote_thread_alive (ptid_t
);
145 static void get_offsets (void);
147 static void skip_frame (void);
149 static long read_frame (char **buf_p
, long *sizeof_buf
);
151 static int hexnumlen (ULONGEST num
);
153 static void init_remote_ops (void);
155 static void init_extended_remote_ops (void);
157 static void remote_stop (void);
159 static int ishex (int ch
, int *val
);
161 static int stubhex (int ch
);
163 static int hexnumstr (char *, ULONGEST
);
165 static int hexnumnstr (char *, ULONGEST
, int);
167 static CORE_ADDR
remote_address_masked (CORE_ADDR
);
169 static void print_packet (char *);
171 static unsigned long crc32 (unsigned char *, int, unsigned int);
173 static void compare_sections_command (char *, int);
175 static void packet_command (char *, int);
177 static int stub_unpack_int (char *buff
, int fieldlength
);
179 static ptid_t
remote_current_thread (ptid_t oldptid
);
181 static void remote_find_new_threads (void);
183 static void record_currthread (int currthread
);
185 static int fromhex (int a
);
187 static int hex2bin (const char *hex
, gdb_byte
*bin
, int count
);
189 static int bin2hex (const gdb_byte
*bin
, char *hex
, int count
);
191 static int putpkt_binary (char *buf
, int cnt
);
193 static void check_binary_download (CORE_ADDR addr
);
195 struct packet_config
;
197 static void show_packet_config_cmd (struct packet_config
*config
);
199 static void update_packet_config (struct packet_config
*config
);
201 static void set_remote_protocol_packet_cmd (char *args
, int from_tty
,
202 struct cmd_list_element
*c
);
204 static void show_remote_protocol_packet_cmd (struct ui_file
*file
,
206 struct cmd_list_element
*c
,
209 void _initialize_remote (void);
213 static struct cmd_list_element
*remote_cmdlist
;
215 /* For "set remote" and "show remote". */
217 static struct cmd_list_element
*remote_set_cmdlist
;
218 static struct cmd_list_element
*remote_show_cmdlist
;
220 /* Description of the remote protocol state for the currently
221 connected target. This is per-target state, and independent of the
222 selected architecture. */
226 /* A buffer to use for incoming packets, and its current size. The
227 buffer is grown dynamically for larger incoming packets.
228 Outgoing packets may also be constructed in this buffer.
229 BUF_SIZE is always at least REMOTE_PACKET_SIZE;
230 REMOTE_PACKET_SIZE should be used to limit the length of outgoing
235 /* If we negotiated packet size explicitly (and thus can bypass
236 heuristics for the largest packet size that will not overflow
237 a buffer in the stub), this will be set to that packet size.
238 Otherwise zero, meaning to use the guessed size. */
239 long explicit_packet_size
;
241 /* remote_wait is normally called when the target is running and
242 waits for a stop reply packet. But sometimes we need to call it
243 when the target is already stopped. We can send a "?" packet
244 and have remote_wait read the response. Or, if we already have
245 the response, we can stash it in BUF and tell remote_wait to
246 skip calling getpkt. This flag is set when BUF contains a
247 stop reply packet and the target is not waiting. */
248 int cached_wait_status
;
251 /* This data could be associated with a target, but we do not always
252 have access to the current target when we need it, so for now it is
253 static. This will be fine for as long as only one target is in use
255 static struct remote_state remote_state
;
257 static struct remote_state
*
258 get_remote_state_raw (void)
260 return &remote_state
;
263 /* Description of the remote protocol for a given architecture. */
267 long offset
; /* Offset into G packet. */
268 long regnum
; /* GDB's internal register number. */
269 LONGEST pnum
; /* Remote protocol register number. */
270 int in_g_packet
; /* Always part of G packet. */
271 /* long size in bytes; == register_size (current_gdbarch, regnum);
273 /* char *name; == gdbarch_register_name (current_gdbarch, regnum);
277 struct remote_arch_state
279 /* Description of the remote protocol registers. */
280 long sizeof_g_packet
;
282 /* Description of the remote protocol registers indexed by REGNUM
283 (making an array gdbarch_num_regs in size). */
284 struct packet_reg
*regs
;
286 /* This is the size (in chars) of the first response to the ``g''
287 packet. It is used as a heuristic when determining the maximum
288 size of memory-read and memory-write packets. A target will
289 typically only reserve a buffer large enough to hold the ``g''
290 packet. The size does not include packet overhead (headers and
292 long actual_register_packet_size
;
294 /* This is the maximum size (in chars) of a non read/write packet.
295 It is also used as a cap on the size of read/write packets. */
296 long remote_packet_size
;
300 /* Handle for retreving the remote protocol data from gdbarch. */
301 static struct gdbarch_data
*remote_gdbarch_data_handle
;
303 static struct remote_arch_state
*
304 get_remote_arch_state (void)
306 return gdbarch_data (current_gdbarch
, remote_gdbarch_data_handle
);
309 /* Fetch the global remote target state. */
311 static struct remote_state
*
312 get_remote_state (void)
314 /* Make sure that the remote architecture state has been
315 initialized, because doing so might reallocate rs->buf. Any
316 function which calls getpkt also needs to be mindful of changes
317 to rs->buf, but this call limits the number of places which run
319 get_remote_arch_state ();
321 return get_remote_state_raw ();
325 compare_pnums (const void *lhs_
, const void *rhs_
)
327 const struct packet_reg
* const *lhs
= lhs_
;
328 const struct packet_reg
* const *rhs
= rhs_
;
330 if ((*lhs
)->pnum
< (*rhs
)->pnum
)
332 else if ((*lhs
)->pnum
== (*rhs
)->pnum
)
339 init_remote_state (struct gdbarch
*gdbarch
)
341 int regnum
, num_remote_regs
, offset
;
342 struct remote_state
*rs
= get_remote_state_raw ();
343 struct remote_arch_state
*rsa
;
344 struct packet_reg
**remote_regs
;
346 rsa
= GDBARCH_OBSTACK_ZALLOC (gdbarch
, struct remote_arch_state
);
348 /* Use the architecture to build a regnum<->pnum table, which will be
349 1:1 unless a feature set specifies otherwise. */
350 rsa
->regs
= GDBARCH_OBSTACK_CALLOC (gdbarch
,
351 gdbarch_num_regs (gdbarch
),
353 for (regnum
= 0; regnum
< gdbarch_num_regs (gdbarch
); regnum
++)
355 struct packet_reg
*r
= &rsa
->regs
[regnum
];
357 if (register_size (gdbarch
, regnum
) == 0)
358 /* Do not try to fetch zero-sized (placeholder) registers. */
361 r
->pnum
= gdbarch_remote_register_number (gdbarch
, regnum
);
366 /* Define the g/G packet format as the contents of each register
367 with a remote protocol number, in order of ascending protocol
370 remote_regs
= alloca (gdbarch_num_regs (gdbarch
)
371 * sizeof (struct packet_reg
*));
372 for (num_remote_regs
= 0, regnum
= 0;
373 regnum
< gdbarch_num_regs (gdbarch
);
375 if (rsa
->regs
[regnum
].pnum
!= -1)
376 remote_regs
[num_remote_regs
++] = &rsa
->regs
[regnum
];
378 qsort (remote_regs
, num_remote_regs
, sizeof (struct packet_reg
*),
381 for (regnum
= 0, offset
= 0; regnum
< num_remote_regs
; regnum
++)
383 remote_regs
[regnum
]->in_g_packet
= 1;
384 remote_regs
[regnum
]->offset
= offset
;
385 offset
+= register_size (gdbarch
, remote_regs
[regnum
]->regnum
);
388 /* Record the maximum possible size of the g packet - it may turn out
390 rsa
->sizeof_g_packet
= offset
;
392 /* Default maximum number of characters in a packet body. Many
393 remote stubs have a hardwired buffer size of 400 bytes
394 (c.f. BUFMAX in m68k-stub.c and i386-stub.c). BUFMAX-1 is used
395 as the maximum packet-size to ensure that the packet and an extra
396 NUL character can always fit in the buffer. This stops GDB
397 trashing stubs that try to squeeze an extra NUL into what is
398 already a full buffer (As of 1999-12-04 that was most stubs). */
399 rsa
->remote_packet_size
= 400 - 1;
401 /* This one is filled in when a ``g'' packet is received. */
402 rsa
->actual_register_packet_size
= 0;
404 /* Should rsa->sizeof_g_packet needs more space than the
405 default, adjust the size accordingly. Remember that each byte is
406 encoded as two characters. 32 is the overhead for the packet
407 header / footer. NOTE: cagney/1999-10-26: I suspect that 8
408 (``$NN:G...#NN'') is a better guess, the below has been padded a
410 if (rsa
->sizeof_g_packet
> ((rsa
->remote_packet_size
- 32) / 2))
411 rsa
->remote_packet_size
= (rsa
->sizeof_g_packet
* 2 + 32);
413 /* Make sure that the packet buffer is plenty big enough for
414 this architecture. */
415 if (rs
->buf_size
< rsa
->remote_packet_size
)
417 rs
->buf_size
= 2 * rsa
->remote_packet_size
;
418 rs
->buf
= xrealloc (rs
->buf
, rs
->buf_size
);
424 /* Return the current allowed size of a remote packet. This is
425 inferred from the current architecture, and should be used to
426 limit the length of outgoing packets. */
428 get_remote_packet_size (void)
430 struct remote_state
*rs
= get_remote_state ();
431 struct remote_arch_state
*rsa
= get_remote_arch_state ();
433 if (rs
->explicit_packet_size
)
434 return rs
->explicit_packet_size
;
436 return rsa
->remote_packet_size
;
439 static struct packet_reg
*
440 packet_reg_from_regnum (struct remote_arch_state
*rsa
, long regnum
)
442 if (regnum
< 0 && regnum
>= gdbarch_num_regs (current_gdbarch
))
446 struct packet_reg
*r
= &rsa
->regs
[regnum
];
447 gdb_assert (r
->regnum
== regnum
);
452 static struct packet_reg
*
453 packet_reg_from_pnum (struct remote_arch_state
*rsa
, LONGEST pnum
)
456 for (i
= 0; i
< gdbarch_num_regs (current_gdbarch
); i
++)
458 struct packet_reg
*r
= &rsa
->regs
[i
];
465 /* FIXME: graces/2002-08-08: These variables should eventually be
466 bound to an instance of the target object (as in gdbarch-tdep()),
467 when such a thing exists. */
469 /* This is set to the data address of the access causing the target
470 to stop for a watchpoint. */
471 static CORE_ADDR remote_watch_data_address
;
473 /* This is non-zero if target stopped for a watchpoint. */
474 static int remote_stopped_by_watchpoint_p
;
476 static struct target_ops remote_ops
;
478 static struct target_ops extended_remote_ops
;
480 /* Temporary target ops. Just like the remote_ops and
481 extended_remote_ops, but with asynchronous support. */
482 static struct target_ops remote_async_ops
;
484 static struct target_ops extended_async_remote_ops
;
486 /* FIXME: cagney/1999-09-23: Even though getpkt was called with
487 ``forever'' still use the normal timeout mechanism. This is
488 currently used by the ASYNC code to guarentee that target reads
489 during the initial connect always time-out. Once getpkt has been
490 modified to return a timeout indication and, in turn
491 remote_wait()/wait_for_inferior() have gained a timeout parameter
493 static int wait_forever_enabled_p
= 1;
496 /* This variable chooses whether to send a ^C or a break when the user
497 requests program interruption. Although ^C is usually what remote
498 systems expect, and that is the default here, sometimes a break is
499 preferable instead. */
501 static int remote_break
;
503 /* Descriptor for I/O to remote machine. Initialize it to NULL so that
504 remote_open knows that we don't have a file open when the program
506 static struct serial
*remote_desc
= NULL
;
508 /* This variable sets the number of bits in an address that are to be
509 sent in a memory ("M" or "m") packet. Normally, after stripping
510 leading zeros, the entire address would be sent. This variable
511 restricts the address to REMOTE_ADDRESS_SIZE bits. HISTORY: The
512 initial implementation of remote.c restricted the address sent in
513 memory packets to ``host::sizeof long'' bytes - (typically 32
514 bits). Consequently, for 64 bit targets, the upper 32 bits of an
515 address was never sent. Since fixing this bug may cause a break in
516 some remote targets this variable is principly provided to
517 facilitate backward compatibility. */
519 static int remote_address_size
;
521 /* Tempoary to track who currently owns the terminal. See
522 target_async_terminal_* for more details. */
524 static int remote_async_terminal_ours_p
;
526 /* The executable file to use for "run" on the remote side. */
528 static char *remote_exec_file
= "";
531 /* User configurable variables for the number of characters in a
532 memory read/write packet. MIN (rsa->remote_packet_size,
533 rsa->sizeof_g_packet) is the default. Some targets need smaller
534 values (fifo overruns, et.al.) and some users need larger values
535 (speed up transfers). The variables ``preferred_*'' (the user
536 request), ``current_*'' (what was actually set) and ``forced_*''
537 (Positive - a soft limit, negative - a hard limit). */
539 struct memory_packet_config
546 /* Compute the current size of a read/write packet. Since this makes
547 use of ``actual_register_packet_size'' the computation is dynamic. */
550 get_memory_packet_size (struct memory_packet_config
*config
)
552 struct remote_state
*rs
= get_remote_state ();
553 struct remote_arch_state
*rsa
= get_remote_arch_state ();
555 /* NOTE: The somewhat arbitrary 16k comes from the knowledge (folk
556 law?) that some hosts don't cope very well with large alloca()
557 calls. Eventually the alloca() code will be replaced by calls to
558 xmalloc() and make_cleanups() allowing this restriction to either
559 be lifted or removed. */
560 #ifndef MAX_REMOTE_PACKET_SIZE
561 #define MAX_REMOTE_PACKET_SIZE 16384
563 /* NOTE: 20 ensures we can write at least one byte. */
564 #ifndef MIN_REMOTE_PACKET_SIZE
565 #define MIN_REMOTE_PACKET_SIZE 20
570 if (config
->size
<= 0)
571 what_they_get
= MAX_REMOTE_PACKET_SIZE
;
573 what_they_get
= config
->size
;
577 what_they_get
= get_remote_packet_size ();
578 /* Limit the packet to the size specified by the user. */
580 && what_they_get
> config
->size
)
581 what_they_get
= config
->size
;
583 /* Limit it to the size of the targets ``g'' response unless we have
584 permission from the stub to use a larger packet size. */
585 if (rs
->explicit_packet_size
== 0
586 && rsa
->actual_register_packet_size
> 0
587 && what_they_get
> rsa
->actual_register_packet_size
)
588 what_they_get
= rsa
->actual_register_packet_size
;
590 if (what_they_get
> MAX_REMOTE_PACKET_SIZE
)
591 what_they_get
= MAX_REMOTE_PACKET_SIZE
;
592 if (what_they_get
< MIN_REMOTE_PACKET_SIZE
)
593 what_they_get
= MIN_REMOTE_PACKET_SIZE
;
595 /* Make sure there is room in the global buffer for this packet
596 (including its trailing NUL byte). */
597 if (rs
->buf_size
< what_they_get
+ 1)
599 rs
->buf_size
= 2 * what_they_get
;
600 rs
->buf
= xrealloc (rs
->buf
, 2 * what_they_get
);
603 return what_they_get
;
606 /* Update the size of a read/write packet. If they user wants
607 something really big then do a sanity check. */
610 set_memory_packet_size (char *args
, struct memory_packet_config
*config
)
612 int fixed_p
= config
->fixed_p
;
613 long size
= config
->size
;
615 error (_("Argument required (integer, `fixed' or `limited')."));
616 else if (strcmp (args
, "hard") == 0
617 || strcmp (args
, "fixed") == 0)
619 else if (strcmp (args
, "soft") == 0
620 || strcmp (args
, "limit") == 0)
625 size
= strtoul (args
, &end
, 0);
627 error (_("Invalid %s (bad syntax)."), config
->name
);
629 /* Instead of explicitly capping the size of a packet to
630 MAX_REMOTE_PACKET_SIZE or dissallowing it, the user is
631 instead allowed to set the size to something arbitrarily
633 if (size
> MAX_REMOTE_PACKET_SIZE
)
634 error (_("Invalid %s (too large)."), config
->name
);
638 if (fixed_p
&& !config
->fixed_p
)
640 if (! query (_("The target may not be able to correctly handle a %s\n"
641 "of %ld bytes. Change the packet size? "),
643 error (_("Packet size not changed."));
645 /* Update the config. */
646 config
->fixed_p
= fixed_p
;
651 show_memory_packet_size (struct memory_packet_config
*config
)
653 printf_filtered (_("The %s is %ld. "), config
->name
, config
->size
);
655 printf_filtered (_("Packets are fixed at %ld bytes.\n"),
656 get_memory_packet_size (config
));
658 printf_filtered (_("Packets are limited to %ld bytes.\n"),
659 get_memory_packet_size (config
));
662 static struct memory_packet_config memory_write_packet_config
=
664 "memory-write-packet-size",
668 set_memory_write_packet_size (char *args
, int from_tty
)
670 set_memory_packet_size (args
, &memory_write_packet_config
);
674 show_memory_write_packet_size (char *args
, int from_tty
)
676 show_memory_packet_size (&memory_write_packet_config
);
680 get_memory_write_packet_size (void)
682 return get_memory_packet_size (&memory_write_packet_config
);
685 static struct memory_packet_config memory_read_packet_config
=
687 "memory-read-packet-size",
691 set_memory_read_packet_size (char *args
, int from_tty
)
693 set_memory_packet_size (args
, &memory_read_packet_config
);
697 show_memory_read_packet_size (char *args
, int from_tty
)
699 show_memory_packet_size (&memory_read_packet_config
);
703 get_memory_read_packet_size (void)
705 long size
= get_memory_packet_size (&memory_read_packet_config
);
706 /* FIXME: cagney/1999-11-07: Functions like getpkt() need to get an
707 extra buffer size argument before the memory read size can be
708 increased beyond this. */
709 if (size
> get_remote_packet_size ())
710 size
= get_remote_packet_size ();
715 /* Generic configuration support for packets the stub optionally
716 supports. Allows the user to specify the use of the packet as well
717 as allowing GDB to auto-detect support in the remote stub. */
721 PACKET_SUPPORT_UNKNOWN
= 0,
730 enum auto_boolean detect
;
731 enum packet_support support
;
734 /* Analyze a packet's return value and update the packet config
745 update_packet_config (struct packet_config
*config
)
747 switch (config
->detect
)
749 case AUTO_BOOLEAN_TRUE
:
750 config
->support
= PACKET_ENABLE
;
752 case AUTO_BOOLEAN_FALSE
:
753 config
->support
= PACKET_DISABLE
;
755 case AUTO_BOOLEAN_AUTO
:
756 config
->support
= PACKET_SUPPORT_UNKNOWN
;
762 show_packet_config_cmd (struct packet_config
*config
)
764 char *support
= "internal-error";
765 switch (config
->support
)
771 support
= "disabled";
773 case PACKET_SUPPORT_UNKNOWN
:
777 switch (config
->detect
)
779 case AUTO_BOOLEAN_AUTO
:
780 printf_filtered (_("Support for the `%s' packet is auto-detected, currently %s.\n"),
781 config
->name
, support
);
783 case AUTO_BOOLEAN_TRUE
:
784 case AUTO_BOOLEAN_FALSE
:
785 printf_filtered (_("Support for the `%s' packet is currently %s.\n"),
786 config
->name
, support
);
792 add_packet_config_cmd (struct packet_config
*config
, const char *name
,
793 const char *title
, int legacy
)
800 config
->title
= title
;
801 config
->detect
= AUTO_BOOLEAN_AUTO
;
802 config
->support
= PACKET_SUPPORT_UNKNOWN
;
803 set_doc
= xstrprintf ("Set use of remote protocol `%s' (%s) packet",
805 show_doc
= xstrprintf ("Show current use of remote protocol `%s' (%s) packet",
807 /* set/show TITLE-packet {auto,on,off} */
808 cmd_name
= xstrprintf ("%s-packet", title
);
809 add_setshow_auto_boolean_cmd (cmd_name
, class_obscure
,
810 &config
->detect
, set_doc
, show_doc
, NULL
, /* help_doc */
811 set_remote_protocol_packet_cmd
,
812 show_remote_protocol_packet_cmd
,
813 &remote_set_cmdlist
, &remote_show_cmdlist
);
814 /* set/show remote NAME-packet {auto,on,off} -- legacy. */
818 legacy_name
= xstrprintf ("%s-packet", name
);
819 add_alias_cmd (legacy_name
, cmd_name
, class_obscure
, 0,
820 &remote_set_cmdlist
);
821 add_alias_cmd (legacy_name
, cmd_name
, class_obscure
, 0,
822 &remote_show_cmdlist
);
826 static enum packet_result
827 packet_check_result (const char *buf
)
831 /* The stub recognized the packet request. Check that the
832 operation succeeded. */
834 && isxdigit (buf
[1]) && isxdigit (buf
[2])
836 /* "Enn" - definitly an error. */
839 /* Always treat "E." as an error. This will be used for
840 more verbose error messages, such as E.memtypes. */
841 if (buf
[0] == 'E' && buf
[1] == '.')
844 /* The packet may or may not be OK. Just assume it is. */
848 /* The stub does not support the packet. */
849 return PACKET_UNKNOWN
;
852 static enum packet_result
853 packet_ok (const char *buf
, struct packet_config
*config
)
855 enum packet_result result
;
857 result
= packet_check_result (buf
);
862 /* The stub recognized the packet request. */
863 switch (config
->support
)
865 case PACKET_SUPPORT_UNKNOWN
:
867 fprintf_unfiltered (gdb_stdlog
,
868 "Packet %s (%s) is supported\n",
869 config
->name
, config
->title
);
870 config
->support
= PACKET_ENABLE
;
873 internal_error (__FILE__
, __LINE__
,
874 _("packet_ok: attempt to use a disabled packet"));
881 /* The stub does not support the packet. */
882 switch (config
->support
)
885 if (config
->detect
== AUTO_BOOLEAN_AUTO
)
886 /* If the stub previously indicated that the packet was
887 supported then there is a protocol error.. */
888 error (_("Protocol error: %s (%s) conflicting enabled responses."),
889 config
->name
, config
->title
);
891 /* The user set it wrong. */
892 error (_("Enabled packet %s (%s) not recognized by stub"),
893 config
->name
, config
->title
);
895 case PACKET_SUPPORT_UNKNOWN
:
897 fprintf_unfiltered (gdb_stdlog
,
898 "Packet %s (%s) is NOT supported\n",
899 config
->name
, config
->title
);
900 config
->support
= PACKET_DISABLE
;
928 PACKET_qXfer_features
,
929 PACKET_qXfer_libraries
,
930 PACKET_qXfer_memory_map
,
931 PACKET_qXfer_spu_read
,
932 PACKET_qXfer_spu_write
,
941 static struct packet_config remote_protocol_packets
[PACKET_MAX
];
944 set_remote_protocol_packet_cmd (char *args
, int from_tty
,
945 struct cmd_list_element
*c
)
947 struct packet_config
*packet
;
949 for (packet
= remote_protocol_packets
;
950 packet
< &remote_protocol_packets
[PACKET_MAX
];
953 if (&packet
->detect
== c
->var
)
955 update_packet_config (packet
);
959 internal_error (__FILE__
, __LINE__
, "Could not find config for %s",
964 show_remote_protocol_packet_cmd (struct ui_file
*file
, int from_tty
,
965 struct cmd_list_element
*c
,
968 struct packet_config
*packet
;
970 for (packet
= remote_protocol_packets
;
971 packet
< &remote_protocol_packets
[PACKET_MAX
];
974 if (&packet
->detect
== c
->var
)
976 show_packet_config_cmd (packet
);
980 internal_error (__FILE__
, __LINE__
, "Could not find config for %s",
984 /* Should we try one of the 'Z' requests? */
988 Z_PACKET_SOFTWARE_BP
,
989 Z_PACKET_HARDWARE_BP
,
996 /* For compatibility with older distributions. Provide a ``set remote
997 Z-packet ...'' command that updates all the Z packet types. */
999 static enum auto_boolean remote_Z_packet_detect
;
1002 set_remote_protocol_Z_packet_cmd (char *args
, int from_tty
,
1003 struct cmd_list_element
*c
)
1006 for (i
= 0; i
< NR_Z_PACKET_TYPES
; i
++)
1008 remote_protocol_packets
[PACKET_Z0
+ i
].detect
= remote_Z_packet_detect
;
1009 update_packet_config (&remote_protocol_packets
[PACKET_Z0
+ i
]);
1014 show_remote_protocol_Z_packet_cmd (struct ui_file
*file
, int from_tty
,
1015 struct cmd_list_element
*c
,
1019 for (i
= 0; i
< NR_Z_PACKET_TYPES
; i
++)
1021 show_packet_config_cmd (&remote_protocol_packets
[PACKET_Z0
+ i
]);
1025 /* Should we try the 'ThreadInfo' query packet?
1027 This variable (NOT available to the user: auto-detect only!)
1028 determines whether GDB will use the new, simpler "ThreadInfo"
1029 query or the older, more complex syntax for thread queries.
1030 This is an auto-detect variable (set to true at each connect,
1031 and set to false when the target fails to recognize it). */
1033 static int use_threadinfo_query
;
1034 static int use_threadextra_query
;
1036 /* Tokens for use by the asynchronous signal handlers for SIGINT. */
1037 static struct async_signal_handler
*sigint_remote_twice_token
;
1038 static struct async_signal_handler
*sigint_remote_token
;
1040 /* These are pointers to hook functions that may be set in order to
1041 modify resume/wait behavior for a particular architecture. */
1043 void (*deprecated_target_resume_hook
) (void);
1044 void (*deprecated_target_wait_loop_hook
) (void);
1048 /* These are the threads which we last sent to the remote system.
1049 -1 for all or -2 for not sent yet. */
1050 static int general_thread
;
1051 static int continue_thread
;
1053 /* Call this function as a result of
1054 1) A halt indication (T packet) containing a thread id
1055 2) A direct query of currthread
1056 3) Successful execution of set thread
1060 record_currthread (int currthread
)
1062 general_thread
= currthread
;
1064 /* If this is a new thread, add it to GDB's thread list.
1065 If we leave it up to WFI to do this, bad things will happen. */
1066 if (!in_thread_list (pid_to_ptid (currthread
)))
1067 add_thread (pid_to_ptid (currthread
));
1070 static char *last_pass_packet
;
1072 /* If 'QPassSignals' is supported, tell the remote stub what signals
1073 it can simply pass through to the inferior without reporting. */
1076 remote_pass_signals (void)
1078 if (remote_protocol_packets
[PACKET_QPassSignals
].support
!= PACKET_DISABLE
)
1080 char *pass_packet
, *p
;
1081 int numsigs
= (int) TARGET_SIGNAL_LAST
;
1084 gdb_assert (numsigs
< 256);
1085 for (i
= 0; i
< numsigs
; i
++)
1087 if (signal_stop_state (i
) == 0
1088 && signal_print_state (i
) == 0
1089 && signal_pass_state (i
) == 1)
1092 pass_packet
= xmalloc (count
* 3 + strlen ("QPassSignals:") + 1);
1093 strcpy (pass_packet
, "QPassSignals:");
1094 p
= pass_packet
+ strlen (pass_packet
);
1095 for (i
= 0; i
< numsigs
; i
++)
1097 if (signal_stop_state (i
) == 0
1098 && signal_print_state (i
) == 0
1099 && signal_pass_state (i
) == 1)
1102 *p
++ = tohex (i
>> 4);
1103 *p
++ = tohex (i
& 15);
1112 if (!last_pass_packet
|| strcmp (last_pass_packet
, pass_packet
))
1114 struct remote_state
*rs
= get_remote_state ();
1115 char *buf
= rs
->buf
;
1117 putpkt (pass_packet
);
1118 getpkt (&rs
->buf
, &rs
->buf_size
, 0);
1119 packet_ok (buf
, &remote_protocol_packets
[PACKET_QPassSignals
]);
1120 if (last_pass_packet
)
1121 xfree (last_pass_packet
);
1122 last_pass_packet
= pass_packet
;
1125 xfree (pass_packet
);
1129 #define MAGIC_NULL_PID 42000
1132 set_thread (int th
, int gen
)
1134 struct remote_state
*rs
= get_remote_state ();
1135 char *buf
= rs
->buf
;
1136 int state
= gen
? general_thread
: continue_thread
;
1142 buf
[1] = gen
? 'g' : 'c';
1143 if (th
== MAGIC_NULL_PID
)
1149 xsnprintf (&buf
[2], get_remote_packet_size () - 2, "-%x", -th
);
1151 xsnprintf (&buf
[2], get_remote_packet_size () - 2, "%x", th
);
1153 getpkt (&rs
->buf
, &rs
->buf_size
, 0);
1155 general_thread
= th
;
1157 continue_thread
= th
;
1160 /* Return nonzero if the thread TH is still alive on the remote system. */
1163 remote_thread_alive (ptid_t ptid
)
1165 struct remote_state
*rs
= get_remote_state ();
1166 int tid
= PIDGET (ptid
);
1169 xsnprintf (rs
->buf
, get_remote_packet_size (), "T-%08x", -tid
);
1171 xsnprintf (rs
->buf
, get_remote_packet_size (), "T%08x", tid
);
1173 getpkt (&rs
->buf
, &rs
->buf_size
, 0);
1174 return (rs
->buf
[0] == 'O' && rs
->buf
[1] == 'K');
1177 /* About these extended threadlist and threadinfo packets. They are
1178 variable length packets but, the fields within them are often fixed
1179 length. They are redundent enough to send over UDP as is the
1180 remote protocol in general. There is a matching unit test module
1183 #define OPAQUETHREADBYTES 8
1185 /* a 64 bit opaque identifier */
1186 typedef unsigned char threadref
[OPAQUETHREADBYTES
];
1188 /* WARNING: This threadref data structure comes from the remote O.S.,
1189 libstub protocol encoding, and remote.c. it is not particularly
1192 /* Right now, the internal structure is int. We want it to be bigger.
1196 typedef int gdb_threadref
; /* Internal GDB thread reference. */
1198 /* gdb_ext_thread_info is an internal GDB data structure which is
1199 equivalent to the reply of the remote threadinfo packet. */
1201 struct gdb_ext_thread_info
1203 threadref threadid
; /* External form of thread reference. */
1204 int active
; /* Has state interesting to GDB?
1206 char display
[256]; /* Brief state display, name,
1207 blocked/suspended. */
1208 char shortname
[32]; /* To be used to name threads. */
1209 char more_display
[256]; /* Long info, statistics, queue depth,
1213 /* The volume of remote transfers can be limited by submitting
1214 a mask containing bits specifying the desired information.
1215 Use a union of these values as the 'selection' parameter to
1216 get_thread_info. FIXME: Make these TAG names more thread specific.
1219 #define TAG_THREADID 1
1220 #define TAG_EXISTS 2
1221 #define TAG_DISPLAY 4
1222 #define TAG_THREADNAME 8
1223 #define TAG_MOREDISPLAY 16
1225 #define BUF_THREAD_ID_SIZE (OPAQUETHREADBYTES * 2)
1227 char *unpack_varlen_hex (char *buff
, ULONGEST
*result
);
1229 static char *unpack_nibble (char *buf
, int *val
);
1231 static char *pack_nibble (char *buf
, int nibble
);
1233 static char *pack_hex_byte (char *pkt
, int /* unsigned char */ byte
);
1235 static char *unpack_byte (char *buf
, int *value
);
1237 static char *pack_int (char *buf
, int value
);
1239 static char *unpack_int (char *buf
, int *value
);
1241 static char *unpack_string (char *src
, char *dest
, int length
);
1243 static char *pack_threadid (char *pkt
, threadref
*id
);
1245 static char *unpack_threadid (char *inbuf
, threadref
*id
);
1247 void int_to_threadref (threadref
*id
, int value
);
1249 static int threadref_to_int (threadref
*ref
);
1251 static void copy_threadref (threadref
*dest
, threadref
*src
);
1253 static int threadmatch (threadref
*dest
, threadref
*src
);
1255 static char *pack_threadinfo_request (char *pkt
, int mode
,
1258 static int remote_unpack_thread_info_response (char *pkt
,
1259 threadref
*expectedref
,
1260 struct gdb_ext_thread_info
1264 static int remote_get_threadinfo (threadref
*threadid
,
1265 int fieldset
, /*TAG mask */
1266 struct gdb_ext_thread_info
*info
);
1268 static char *pack_threadlist_request (char *pkt
, int startflag
,
1270 threadref
*nextthread
);
1272 static int parse_threadlist_response (char *pkt
,
1274 threadref
*original_echo
,
1275 threadref
*resultlist
,
1278 static int remote_get_threadlist (int startflag
,
1279 threadref
*nextthread
,
1283 threadref
*threadlist
);
1285 typedef int (*rmt_thread_action
) (threadref
*ref
, void *context
);
1287 static int remote_threadlist_iterator (rmt_thread_action stepfunction
,
1288 void *context
, int looplimit
);
1290 static int remote_newthread_step (threadref
*ref
, void *context
);
1292 /* Encode 64 bits in 16 chars of hex. */
1294 static const char hexchars
[] = "0123456789abcdef";
1297 ishex (int ch
, int *val
)
1299 if ((ch
>= 'a') && (ch
<= 'f'))
1301 *val
= ch
- 'a' + 10;
1304 if ((ch
>= 'A') && (ch
<= 'F'))
1306 *val
= ch
- 'A' + 10;
1309 if ((ch
>= '0') && (ch
<= '9'))
1320 if (ch
>= 'a' && ch
<= 'f')
1321 return ch
- 'a' + 10;
1322 if (ch
>= '0' && ch
<= '9')
1324 if (ch
>= 'A' && ch
<= 'F')
1325 return ch
- 'A' + 10;
1330 stub_unpack_int (char *buff
, int fieldlength
)
1337 nibble
= stubhex (*buff
++);
1341 retval
= retval
<< 4;
1347 unpack_varlen_hex (char *buff
, /* packet to parse */
1351 ULONGEST retval
= 0;
1353 while (ishex (*buff
, &nibble
))
1356 retval
= retval
<< 4;
1357 retval
|= nibble
& 0x0f;
1364 unpack_nibble (char *buf
, int *val
)
1366 *val
= fromhex (*buf
++);
1371 pack_nibble (char *buf
, int nibble
)
1373 *buf
++ = hexchars
[(nibble
& 0x0f)];
1378 pack_hex_byte (char *pkt
, int byte
)
1380 *pkt
++ = hexchars
[(byte
>> 4) & 0xf];
1381 *pkt
++ = hexchars
[(byte
& 0xf)];
1386 unpack_byte (char *buf
, int *value
)
1388 *value
= stub_unpack_int (buf
, 2);
1393 pack_int (char *buf
, int value
)
1395 buf
= pack_hex_byte (buf
, (value
>> 24) & 0xff);
1396 buf
= pack_hex_byte (buf
, (value
>> 16) & 0xff);
1397 buf
= pack_hex_byte (buf
, (value
>> 8) & 0x0ff);
1398 buf
= pack_hex_byte (buf
, (value
& 0xff));
1403 unpack_int (char *buf
, int *value
)
1405 *value
= stub_unpack_int (buf
, 8);
1409 #if 0 /* Currently unused, uncomment when needed. */
1410 static char *pack_string (char *pkt
, char *string
);
1413 pack_string (char *pkt
, char *string
)
1418 len
= strlen (string
);
1420 len
= 200; /* Bigger than most GDB packets, junk??? */
1421 pkt
= pack_hex_byte (pkt
, len
);
1425 if ((ch
== '\0') || (ch
== '#'))
1426 ch
= '*'; /* Protect encapsulation. */
1431 #endif /* 0 (unused) */
1434 unpack_string (char *src
, char *dest
, int length
)
1443 pack_threadid (char *pkt
, threadref
*id
)
1446 unsigned char *altid
;
1448 altid
= (unsigned char *) id
;
1449 limit
= pkt
+ BUF_THREAD_ID_SIZE
;
1451 pkt
= pack_hex_byte (pkt
, *altid
++);
1457 unpack_threadid (char *inbuf
, threadref
*id
)
1460 char *limit
= inbuf
+ BUF_THREAD_ID_SIZE
;
1463 altref
= (char *) id
;
1465 while (inbuf
< limit
)
1467 x
= stubhex (*inbuf
++);
1468 y
= stubhex (*inbuf
++);
1469 *altref
++ = (x
<< 4) | y
;
1474 /* Externally, threadrefs are 64 bits but internally, they are still
1475 ints. This is due to a mismatch of specifications. We would like
1476 to use 64bit thread references internally. This is an adapter
1480 int_to_threadref (threadref
*id
, int value
)
1482 unsigned char *scan
;
1484 scan
= (unsigned char *) id
;
1490 *scan
++ = (value
>> 24) & 0xff;
1491 *scan
++ = (value
>> 16) & 0xff;
1492 *scan
++ = (value
>> 8) & 0xff;
1493 *scan
++ = (value
& 0xff);
1497 threadref_to_int (threadref
*ref
)
1500 unsigned char *scan
;
1506 value
= (value
<< 8) | ((*scan
++) & 0xff);
1511 copy_threadref (threadref
*dest
, threadref
*src
)
1514 unsigned char *csrc
, *cdest
;
1516 csrc
= (unsigned char *) src
;
1517 cdest
= (unsigned char *) dest
;
1524 threadmatch (threadref
*dest
, threadref
*src
)
1526 /* Things are broken right now, so just assume we got a match. */
1528 unsigned char *srcp
, *destp
;
1530 srcp
= (char *) src
;
1531 destp
= (char *) dest
;
1535 result
&= (*srcp
++ == *destp
++) ? 1 : 0;
1542 threadid:1, # always request threadid
1549 /* Encoding: 'Q':8,'P':8,mask:32,threadid:64 */
1552 pack_threadinfo_request (char *pkt
, int mode
, threadref
*id
)
1554 *pkt
++ = 'q'; /* Info Query */
1555 *pkt
++ = 'P'; /* process or thread info */
1556 pkt
= pack_int (pkt
, mode
); /* mode */
1557 pkt
= pack_threadid (pkt
, id
); /* threadid */
1558 *pkt
= '\0'; /* terminate */
1562 /* These values tag the fields in a thread info response packet. */
1563 /* Tagging the fields allows us to request specific fields and to
1564 add more fields as time goes by. */
1566 #define TAG_THREADID 1 /* Echo the thread identifier. */
1567 #define TAG_EXISTS 2 /* Is this process defined enough to
1568 fetch registers and its stack? */
1569 #define TAG_DISPLAY 4 /* A short thing maybe to put on a window */
1570 #define TAG_THREADNAME 8 /* string, maps 1-to-1 with a thread is. */
1571 #define TAG_MOREDISPLAY 16 /* Whatever the kernel wants to say about
1575 remote_unpack_thread_info_response (char *pkt
, threadref
*expectedref
,
1576 struct gdb_ext_thread_info
*info
)
1578 struct remote_state
*rs
= get_remote_state ();
1582 char *limit
= pkt
+ rs
->buf_size
; /* Plausible parsing limit. */
1585 /* info->threadid = 0; FIXME: implement zero_threadref. */
1587 info
->display
[0] = '\0';
1588 info
->shortname
[0] = '\0';
1589 info
->more_display
[0] = '\0';
1591 /* Assume the characters indicating the packet type have been
1593 pkt
= unpack_int (pkt
, &mask
); /* arg mask */
1594 pkt
= unpack_threadid (pkt
, &ref
);
1597 warning (_("Incomplete response to threadinfo request."));
1598 if (!threadmatch (&ref
, expectedref
))
1599 { /* This is an answer to a different request. */
1600 warning (_("ERROR RMT Thread info mismatch."));
1603 copy_threadref (&info
->threadid
, &ref
);
1605 /* Loop on tagged fields , try to bail if somthing goes wrong. */
1607 /* Packets are terminated with nulls. */
1608 while ((pkt
< limit
) && mask
&& *pkt
)
1610 pkt
= unpack_int (pkt
, &tag
); /* tag */
1611 pkt
= unpack_byte (pkt
, &length
); /* length */
1612 if (!(tag
& mask
)) /* Tags out of synch with mask. */
1614 warning (_("ERROR RMT: threadinfo tag mismatch."));
1618 if (tag
== TAG_THREADID
)
1622 warning (_("ERROR RMT: length of threadid is not 16."));
1626 pkt
= unpack_threadid (pkt
, &ref
);
1627 mask
= mask
& ~TAG_THREADID
;
1630 if (tag
== TAG_EXISTS
)
1632 info
->active
= stub_unpack_int (pkt
, length
);
1634 mask
= mask
& ~(TAG_EXISTS
);
1637 warning (_("ERROR RMT: 'exists' length too long."));
1643 if (tag
== TAG_THREADNAME
)
1645 pkt
= unpack_string (pkt
, &info
->shortname
[0], length
);
1646 mask
= mask
& ~TAG_THREADNAME
;
1649 if (tag
== TAG_DISPLAY
)
1651 pkt
= unpack_string (pkt
, &info
->display
[0], length
);
1652 mask
= mask
& ~TAG_DISPLAY
;
1655 if (tag
== TAG_MOREDISPLAY
)
1657 pkt
= unpack_string (pkt
, &info
->more_display
[0], length
);
1658 mask
= mask
& ~TAG_MOREDISPLAY
;
1661 warning (_("ERROR RMT: unknown thread info tag."));
1662 break; /* Not a tag we know about. */
1668 remote_get_threadinfo (threadref
*threadid
, int fieldset
, /* TAG mask */
1669 struct gdb_ext_thread_info
*info
)
1671 struct remote_state
*rs
= get_remote_state ();
1674 pack_threadinfo_request (rs
->buf
, fieldset
, threadid
);
1676 getpkt (&rs
->buf
, &rs
->buf_size
, 0);
1677 result
= remote_unpack_thread_info_response (rs
->buf
+ 2,
1682 /* Format: i'Q':8,i"L":8,initflag:8,batchsize:16,lastthreadid:32 */
1685 pack_threadlist_request (char *pkt
, int startflag
, int threadcount
,
1686 threadref
*nextthread
)
1688 *pkt
++ = 'q'; /* info query packet */
1689 *pkt
++ = 'L'; /* Process LIST or threadLIST request */
1690 pkt
= pack_nibble (pkt
, startflag
); /* initflag 1 bytes */
1691 pkt
= pack_hex_byte (pkt
, threadcount
); /* threadcount 2 bytes */
1692 pkt
= pack_threadid (pkt
, nextthread
); /* 64 bit thread identifier */
1697 /* Encoding: 'q':8,'M':8,count:16,done:8,argthreadid:64,(threadid:64)* */
1700 parse_threadlist_response (char *pkt
, int result_limit
,
1701 threadref
*original_echo
, threadref
*resultlist
,
1704 struct remote_state
*rs
= get_remote_state ();
1706 int count
, resultcount
, done
;
1709 /* Assume the 'q' and 'M chars have been stripped. */
1710 limit
= pkt
+ (rs
->buf_size
- BUF_THREAD_ID_SIZE
);
1711 /* done parse past here */
1712 pkt
= unpack_byte (pkt
, &count
); /* count field */
1713 pkt
= unpack_nibble (pkt
, &done
);
1714 /* The first threadid is the argument threadid. */
1715 pkt
= unpack_threadid (pkt
, original_echo
); /* should match query packet */
1716 while ((count
-- > 0) && (pkt
< limit
))
1718 pkt
= unpack_threadid (pkt
, resultlist
++);
1719 if (resultcount
++ >= result_limit
)
1728 remote_get_threadlist (int startflag
, threadref
*nextthread
, int result_limit
,
1729 int *done
, int *result_count
, threadref
*threadlist
)
1731 struct remote_state
*rs
= get_remote_state ();
1732 static threadref echo_nextthread
;
1735 /* Trancate result limit to be smaller than the packet size. */
1736 if ((((result_limit
+ 1) * BUF_THREAD_ID_SIZE
) + 10) >= get_remote_packet_size ())
1737 result_limit
= (get_remote_packet_size () / BUF_THREAD_ID_SIZE
) - 2;
1739 pack_threadlist_request (rs
->buf
, startflag
, result_limit
, nextthread
);
1741 getpkt (&rs
->buf
, &rs
->buf_size
, 0);
1744 parse_threadlist_response (rs
->buf
+ 2, result_limit
, &echo_nextthread
,
1747 if (!threadmatch (&echo_nextthread
, nextthread
))
1749 /* FIXME: This is a good reason to drop the packet. */
1750 /* Possably, there is a duplicate response. */
1752 retransmit immediatly - race conditions
1753 retransmit after timeout - yes
1755 wait for packet, then exit
1757 warning (_("HMM: threadlist did not echo arg thread, dropping it."));
1758 return 0; /* I choose simply exiting. */
1760 if (*result_count
<= 0)
1764 warning (_("RMT ERROR : failed to get remote thread list."));
1767 return result
; /* break; */
1769 if (*result_count
> result_limit
)
1772 warning (_("RMT ERROR: threadlist response longer than requested."));
1778 /* This is the interface between remote and threads, remotes upper
1781 /* remote_find_new_threads retrieves the thread list and for each
1782 thread in the list, looks up the thread in GDB's internal list,
1783 ading the thread if it does not already exist. This involves
1784 getting partial thread lists from the remote target so, polling the
1785 quit_flag is required. */
1788 /* About this many threadisds fit in a packet. */
1790 #define MAXTHREADLISTRESULTS 32
1793 remote_threadlist_iterator (rmt_thread_action stepfunction
, void *context
,
1796 int done
, i
, result_count
;
1800 static threadref nextthread
;
1801 static threadref resultthreadlist
[MAXTHREADLISTRESULTS
];
1806 if (loopcount
++ > looplimit
)
1809 warning (_("Remote fetch threadlist -infinite loop-."));
1812 if (!remote_get_threadlist (startflag
, &nextthread
, MAXTHREADLISTRESULTS
,
1813 &done
, &result_count
, resultthreadlist
))
1818 /* Clear for later iterations. */
1820 /* Setup to resume next batch of thread references, set nextthread. */
1821 if (result_count
>= 1)
1822 copy_threadref (&nextthread
, &resultthreadlist
[result_count
- 1]);
1824 while (result_count
--)
1825 if (!(result
= (*stepfunction
) (&resultthreadlist
[i
++], context
)))
1832 remote_newthread_step (threadref
*ref
, void *context
)
1836 ptid
= pid_to_ptid (threadref_to_int (ref
));
1838 if (!in_thread_list (ptid
))
1840 return 1; /* continue iterator */
1843 #define CRAZY_MAX_THREADS 1000
1846 remote_current_thread (ptid_t oldpid
)
1848 struct remote_state
*rs
= get_remote_state ();
1851 getpkt (&rs
->buf
, &rs
->buf_size
, 0);
1852 if (rs
->buf
[0] == 'Q' && rs
->buf
[1] == 'C')
1853 /* Use strtoul here, so we'll correctly parse values whose highest
1854 bit is set. The protocol carries them as a simple series of
1855 hex digits; in the absence of a sign, strtol will see such
1856 values as positive numbers out of range for signed 'long', and
1857 return LONG_MAX to indicate an overflow. */
1858 return pid_to_ptid (strtoul (&rs
->buf
[2], NULL
, 16));
1863 /* Find new threads for info threads command.
1864 * Original version, using John Metzler's thread protocol.
1868 remote_find_new_threads (void)
1870 remote_threadlist_iterator (remote_newthread_step
, 0,
1872 if (PIDGET (inferior_ptid
) == MAGIC_NULL_PID
) /* ack ack ack */
1873 inferior_ptid
= remote_current_thread (inferior_ptid
);
1877 * Find all threads for info threads command.
1878 * Uses new thread protocol contributed by Cisco.
1879 * Falls back and attempts to use the older method (above)
1880 * if the target doesn't respond to the new method.
1884 remote_threads_info (void)
1886 struct remote_state
*rs
= get_remote_state ();
1890 if (remote_desc
== 0) /* paranoia */
1891 error (_("Command can only be used when connected to the remote target."));
1893 if (use_threadinfo_query
)
1895 putpkt ("qfThreadInfo");
1896 getpkt (&rs
->buf
, &rs
->buf_size
, 0);
1898 if (bufp
[0] != '\0') /* q packet recognized */
1900 while (*bufp
++ == 'm') /* reply contains one or more TID */
1904 /* Use strtoul here, so we'll correctly parse values
1905 whose highest bit is set. The protocol carries
1906 them as a simple series of hex digits; in the
1907 absence of a sign, strtol will see such values as
1908 positive numbers out of range for signed 'long',
1909 and return LONG_MAX to indicate an overflow. */
1910 tid
= strtoul (bufp
, &bufp
, 16);
1911 if (tid
!= 0 && !in_thread_list (pid_to_ptid (tid
)))
1912 add_thread (pid_to_ptid (tid
));
1914 while (*bufp
++ == ','); /* comma-separated list */
1915 putpkt ("qsThreadInfo");
1916 getpkt (&rs
->buf
, &rs
->buf_size
, 0);
1923 /* Else fall back to old method based on jmetzler protocol. */
1924 use_threadinfo_query
= 0;
1925 remote_find_new_threads ();
1930 * Collect a descriptive string about the given thread.
1931 * The target may say anything it wants to about the thread
1932 * (typically info about its blocked / runnable state, name, etc.).
1933 * This string will appear in the info threads display.
1935 * Optional: targets are not required to implement this function.
1939 remote_threads_extra_info (struct thread_info
*tp
)
1941 struct remote_state
*rs
= get_remote_state ();
1945 struct gdb_ext_thread_info threadinfo
;
1946 static char display_buf
[100]; /* arbitrary... */
1947 int n
= 0; /* position in display_buf */
1949 if (remote_desc
== 0) /* paranoia */
1950 internal_error (__FILE__
, __LINE__
,
1951 _("remote_threads_extra_info"));
1953 if (use_threadextra_query
)
1955 xsnprintf (rs
->buf
, get_remote_packet_size (), "qThreadExtraInfo,%x",
1958 getpkt (&rs
->buf
, &rs
->buf_size
, 0);
1959 if (rs
->buf
[0] != 0)
1961 n
= min (strlen (rs
->buf
) / 2, sizeof (display_buf
));
1962 result
= hex2bin (rs
->buf
, (gdb_byte
*) display_buf
, n
);
1963 display_buf
[result
] = '\0';
1968 /* If the above query fails, fall back to the old method. */
1969 use_threadextra_query
= 0;
1970 set
= TAG_THREADID
| TAG_EXISTS
| TAG_THREADNAME
1971 | TAG_MOREDISPLAY
| TAG_DISPLAY
;
1972 int_to_threadref (&id
, PIDGET (tp
->ptid
));
1973 if (remote_get_threadinfo (&id
, set
, &threadinfo
))
1974 if (threadinfo
.active
)
1976 if (*threadinfo
.shortname
)
1977 n
+= xsnprintf (&display_buf
[0], sizeof (display_buf
) - n
,
1978 " Name: %s,", threadinfo
.shortname
);
1979 if (*threadinfo
.display
)
1980 n
+= xsnprintf (&display_buf
[n
], sizeof (display_buf
) - n
,
1981 " State: %s,", threadinfo
.display
);
1982 if (*threadinfo
.more_display
)
1983 n
+= xsnprintf (&display_buf
[n
], sizeof (display_buf
) - n
,
1984 " Priority: %s", threadinfo
.more_display
);
1988 /* For purely cosmetic reasons, clear up trailing commas. */
1989 if (',' == display_buf
[n
-1])
1990 display_buf
[n
-1] = ' ';
1998 /* Restart the remote side; this is an extended protocol operation. */
2001 extended_remote_restart (void)
2003 struct remote_state
*rs
= get_remote_state ();
2005 /* Send the restart command; for reasons I don't understand the
2006 remote side really expects a number after the "R". */
2007 xsnprintf (rs
->buf
, get_remote_packet_size (), "R%x", 0);
2010 remote_fileio_reset ();
2013 /* Clean up connection to a remote debugger. */
2016 remote_close (int quitting
)
2019 serial_close (remote_desc
);
2023 /* Query the remote side for the text, data and bss offsets. */
2028 struct remote_state
*rs
= get_remote_state ();
2031 int lose
, num_segments
= 0, do_sections
, do_segments
;
2032 CORE_ADDR text_addr
, data_addr
, bss_addr
, segments
[2];
2033 struct section_offsets
*offs
;
2034 struct symfile_segment_data
*data
;
2036 if (symfile_objfile
== NULL
)
2039 putpkt ("qOffsets");
2040 getpkt (&rs
->buf
, &rs
->buf_size
, 0);
2043 if (buf
[0] == '\000')
2044 return; /* Return silently. Stub doesn't support
2048 warning (_("Remote failure reply: %s"), buf
);
2052 /* Pick up each field in turn. This used to be done with scanf, but
2053 scanf will make trouble if CORE_ADDR size doesn't match
2054 conversion directives correctly. The following code will work
2055 with any size of CORE_ADDR. */
2056 text_addr
= data_addr
= bss_addr
= 0;
2060 if (strncmp (ptr
, "Text=", 5) == 0)
2063 /* Don't use strtol, could lose on big values. */
2064 while (*ptr
&& *ptr
!= ';')
2065 text_addr
= (text_addr
<< 4) + fromhex (*ptr
++);
2067 if (strncmp (ptr
, ";Data=", 6) == 0)
2070 while (*ptr
&& *ptr
!= ';')
2071 data_addr
= (data_addr
<< 4) + fromhex (*ptr
++);
2076 if (!lose
&& strncmp (ptr
, ";Bss=", 5) == 0)
2079 while (*ptr
&& *ptr
!= ';')
2080 bss_addr
= (bss_addr
<< 4) + fromhex (*ptr
++);
2082 if (bss_addr
!= data_addr
)
2083 warning (_("Target reported unsupported offsets: %s"), buf
);
2088 else if (strncmp (ptr
, "TextSeg=", 8) == 0)
2091 /* Don't use strtol, could lose on big values. */
2092 while (*ptr
&& *ptr
!= ';')
2093 text_addr
= (text_addr
<< 4) + fromhex (*ptr
++);
2096 if (strncmp (ptr
, ";DataSeg=", 9) == 0)
2099 while (*ptr
&& *ptr
!= ';')
2100 data_addr
= (data_addr
<< 4) + fromhex (*ptr
++);
2108 error (_("Malformed response to offset query, %s"), buf
);
2109 else if (*ptr
!= '\0')
2110 warning (_("Target reported unsupported offsets: %s"), buf
);
2112 offs
= ((struct section_offsets
*)
2113 alloca (SIZEOF_N_SECTION_OFFSETS (symfile_objfile
->num_sections
)));
2114 memcpy (offs
, symfile_objfile
->section_offsets
,
2115 SIZEOF_N_SECTION_OFFSETS (symfile_objfile
->num_sections
));
2117 data
= get_symfile_segment_data (symfile_objfile
->obfd
);
2118 do_segments
= (data
!= NULL
);
2119 do_sections
= num_segments
== 0;
2121 if (num_segments
> 0)
2123 segments
[0] = text_addr
;
2124 segments
[1] = data_addr
;
2126 /* If we have two segments, we can still try to relocate everything
2127 by assuming that the .text and .data offsets apply to the whole
2128 text and data segments. Convert the offsets given in the packet
2129 to base addresses for symfile_map_offsets_to_segments. */
2130 else if (data
&& data
->num_segments
== 2)
2132 segments
[0] = data
->segment_bases
[0] + text_addr
;
2133 segments
[1] = data
->segment_bases
[1] + data_addr
;
2136 /* There's no way to relocate by segment. */
2142 int ret
= symfile_map_offsets_to_segments (symfile_objfile
->obfd
, data
,
2143 offs
, num_segments
, segments
);
2145 if (ret
== 0 && !do_sections
)
2146 error (_("Can not handle qOffsets TextSeg response with this symbol file"));
2153 free_symfile_segment_data (data
);
2157 offs
->offsets
[SECT_OFF_TEXT (symfile_objfile
)] = text_addr
;
2159 /* This is a temporary kludge to force data and bss to use the same offsets
2160 because that's what nlmconv does now. The real solution requires changes
2161 to the stub and remote.c that I don't have time to do right now. */
2163 offs
->offsets
[SECT_OFF_DATA (symfile_objfile
)] = data_addr
;
2164 offs
->offsets
[SECT_OFF_BSS (symfile_objfile
)] = data_addr
;
2167 objfile_relocate (symfile_objfile
, offs
);
2170 /* Stub for catch_exception. */
2172 struct start_remote_args
2176 /* The current target. */
2177 struct target_ops
*target
;
2179 /* Non-zero if this is an extended-remote target. */
2184 remote_start_remote (struct ui_out
*uiout
, void *opaque
)
2186 struct remote_state
*rs
= get_remote_state ();
2187 struct start_remote_args
*args
= opaque
;
2188 char *wait_status
= NULL
;
2190 immediate_quit
++; /* Allow user to interrupt it. */
2192 /* Ack any packet which the remote side has already sent. */
2193 serial_write (remote_desc
, "+", 1);
2195 /* Check whether the target is running now. */
2197 getpkt (&rs
->buf
, &rs
->buf_size
, 0);
2199 if (rs
->buf
[0] == 'W' || rs
->buf
[0] == 'X')
2201 if (args
->extended_p
)
2203 /* We're connected, but not running. Drop out before we
2204 call start_remote. */
2205 target_mark_exited (args
->target
);
2209 error (_("The target is not running (try extended-remote?)"));
2213 if (args
->extended_p
)
2214 target_mark_running (args
->target
);
2216 /* Save the reply for later. */
2217 wait_status
= alloca (strlen (rs
->buf
) + 1);
2218 strcpy (wait_status
, rs
->buf
);
2221 /* Let the stub know that we want it to return the thread. */
2224 /* Without this, some commands which require an active target
2225 (such as kill) won't work. This variable serves (at least)
2226 double duty as both the pid of the target process (if it has
2227 such), and as a flag indicating that a target is active.
2228 These functions should be split out into seperate variables,
2229 especially since GDB will someday have a notion of debugging
2230 several processes. */
2231 inferior_ptid
= pid_to_ptid (MAGIC_NULL_PID
);
2233 /* Now, if we have thread information, update inferior_ptid. */
2234 inferior_ptid
= remote_current_thread (inferior_ptid
);
2236 get_offsets (); /* Get text, data & bss offsets. */
2238 /* Use the previously fetched status. */
2239 gdb_assert (wait_status
!= NULL
);
2240 strcpy (rs
->buf
, wait_status
);
2241 rs
->cached_wait_status
= 1;
2244 start_remote (args
->from_tty
); /* Initialize gdb process mechanisms. */
2247 /* Open a connection to a remote debugger.
2248 NAME is the filename used for communication. */
2251 remote_open (char *name
, int from_tty
)
2253 remote_open_1 (name
, from_tty
, &remote_ops
, 0, 0);
2256 /* Just like remote_open, but with asynchronous support. */
2258 remote_async_open (char *name
, int from_tty
)
2260 remote_open_1 (name
, from_tty
, &remote_async_ops
, 0, 1);
2263 /* Open a connection to a remote debugger using the extended
2264 remote gdb protocol. NAME is the filename used for communication. */
2267 extended_remote_open (char *name
, int from_tty
)
2269 remote_open_1 (name
, from_tty
, &extended_remote_ops
, 1 /*extended_p */,
2273 /* Just like extended_remote_open, but with asynchronous support. */
2275 extended_remote_async_open (char *name
, int from_tty
)
2277 remote_open_1 (name
, from_tty
, &extended_async_remote_ops
,
2278 1 /*extended_p */, 1 /* async_p */);
2281 /* Generic code for opening a connection to a remote target. */
2284 init_all_packet_configs (void)
2287 for (i
= 0; i
< PACKET_MAX
; i
++)
2288 update_packet_config (&remote_protocol_packets
[i
]);
2291 /* Symbol look-up. */
2294 remote_check_symbols (struct objfile
*objfile
)
2296 struct remote_state
*rs
= get_remote_state ();
2297 char *msg
, *reply
, *tmp
;
2298 struct minimal_symbol
*sym
;
2301 if (remote_protocol_packets
[PACKET_qSymbol
].support
== PACKET_DISABLE
)
2304 /* Allocate a message buffer. We can't reuse the input buffer in RS,
2305 because we need both at the same time. */
2306 msg
= alloca (get_remote_packet_size ());
2308 /* Invite target to request symbol lookups. */
2310 putpkt ("qSymbol::");
2311 getpkt (&rs
->buf
, &rs
->buf_size
, 0);
2312 packet_ok (rs
->buf
, &remote_protocol_packets
[PACKET_qSymbol
]);
2315 while (strncmp (reply
, "qSymbol:", 8) == 0)
2318 end
= hex2bin (tmp
, (gdb_byte
*) msg
, strlen (tmp
) / 2);
2320 sym
= lookup_minimal_symbol (msg
, NULL
, NULL
);
2322 xsnprintf (msg
, get_remote_packet_size (), "qSymbol::%s", &reply
[8]);
2325 CORE_ADDR sym_addr
= SYMBOL_VALUE_ADDRESS (sym
);
2327 /* If this is a function address, return the start of code
2328 instead of any data function descriptor. */
2329 sym_addr
= gdbarch_convert_from_func_ptr_addr (current_gdbarch
,
2333 xsnprintf (msg
, get_remote_packet_size (), "qSymbol:%s:%s",
2334 paddr_nz (sym_addr
), &reply
[8]);
2338 getpkt (&rs
->buf
, &rs
->buf_size
, 0);
2343 static struct serial
*
2344 remote_serial_open (char *name
)
2346 static int udp_warning
= 0;
2348 /* FIXME: Parsing NAME here is a hack. But we want to warn here instead
2349 of in ser-tcp.c, because it is the remote protocol assuming that the
2350 serial connection is reliable and not the serial connection promising
2352 if (!udp_warning
&& strncmp (name
, "udp:", 4) == 0)
2355 The remote protocol may be unreliable over UDP.\n\
2356 Some events may be lost, rendering further debugging impossible."));
2360 return serial_open (name
);
2363 /* This type describes each known response to the qSupported
2365 struct protocol_feature
2367 /* The name of this protocol feature. */
2370 /* The default for this protocol feature. */
2371 enum packet_support default_support
;
2373 /* The function to call when this feature is reported, or after
2374 qSupported processing if the feature is not supported.
2375 The first argument points to this structure. The second
2376 argument indicates whether the packet requested support be
2377 enabled, disabled, or probed (or the default, if this function
2378 is being called at the end of processing and this feature was
2379 not reported). The third argument may be NULL; if not NULL, it
2380 is a NUL-terminated string taken from the packet following
2381 this feature's name and an equals sign. */
2382 void (*func
) (const struct protocol_feature
*, enum packet_support
,
2385 /* The corresponding packet for this feature. Only used if
2386 FUNC is remote_supported_packet. */
2391 remote_supported_packet (const struct protocol_feature
*feature
,
2392 enum packet_support support
,
2393 const char *argument
)
2397 warning (_("Remote qSupported response supplied an unexpected value for"
2398 " \"%s\"."), feature
->name
);
2402 if (remote_protocol_packets
[feature
->packet
].support
2403 == PACKET_SUPPORT_UNKNOWN
)
2404 remote_protocol_packets
[feature
->packet
].support
= support
;
2408 remote_packet_size (const struct protocol_feature
*feature
,
2409 enum packet_support support
, const char *value
)
2411 struct remote_state
*rs
= get_remote_state ();
2416 if (support
!= PACKET_ENABLE
)
2419 if (value
== NULL
|| *value
== '\0')
2421 warning (_("Remote target reported \"%s\" without a size."),
2427 packet_size
= strtol (value
, &value_end
, 16);
2428 if (errno
!= 0 || *value_end
!= '\0' || packet_size
< 0)
2430 warning (_("Remote target reported \"%s\" with a bad size: \"%s\"."),
2431 feature
->name
, value
);
2435 if (packet_size
> MAX_REMOTE_PACKET_SIZE
)
2437 warning (_("limiting remote suggested packet size (%d bytes) to %d"),
2438 packet_size
, MAX_REMOTE_PACKET_SIZE
);
2439 packet_size
= MAX_REMOTE_PACKET_SIZE
;
2442 /* Record the new maximum packet size. */
2443 rs
->explicit_packet_size
= packet_size
;
2446 static struct protocol_feature remote_protocol_features
[] = {
2447 { "PacketSize", PACKET_DISABLE
, remote_packet_size
, -1 },
2448 { "qXfer:auxv:read", PACKET_DISABLE
, remote_supported_packet
,
2449 PACKET_qXfer_auxv
},
2450 { "qXfer:features:read", PACKET_DISABLE
, remote_supported_packet
,
2451 PACKET_qXfer_features
},
2452 { "qXfer:libraries:read", PACKET_DISABLE
, remote_supported_packet
,
2453 PACKET_qXfer_libraries
},
2454 { "qXfer:memory-map:read", PACKET_DISABLE
, remote_supported_packet
,
2455 PACKET_qXfer_memory_map
},
2456 { "qXfer:spu:read", PACKET_DISABLE
, remote_supported_packet
,
2457 PACKET_qXfer_spu_read
},
2458 { "qXfer:spu:write", PACKET_DISABLE
, remote_supported_packet
,
2459 PACKET_qXfer_spu_write
},
2460 { "QPassSignals", PACKET_DISABLE
, remote_supported_packet
,
2461 PACKET_QPassSignals
},
2465 remote_query_supported (void)
2467 struct remote_state
*rs
= get_remote_state ();
2470 unsigned char seen
[ARRAY_SIZE (remote_protocol_features
)];
2472 /* The packet support flags are handled differently for this packet
2473 than for most others. We treat an error, a disabled packet, and
2474 an empty response identically: any features which must be reported
2475 to be used will be automatically disabled. An empty buffer
2476 accomplishes this, since that is also the representation for a list
2477 containing no features. */
2480 if (remote_protocol_packets
[PACKET_qSupported
].support
!= PACKET_DISABLE
)
2482 putpkt ("qSupported");
2483 getpkt (&rs
->buf
, &rs
->buf_size
, 0);
2485 /* If an error occured, warn, but do not return - just reset the
2486 buffer to empty and go on to disable features. */
2487 if (packet_ok (rs
->buf
, &remote_protocol_packets
[PACKET_qSupported
])
2490 warning (_("Remote failure reply: %s"), rs
->buf
);
2495 memset (seen
, 0, sizeof (seen
));
2500 enum packet_support is_supported
;
2501 char *p
, *end
, *name_end
, *value
;
2503 /* First separate out this item from the rest of the packet. If
2504 there's another item after this, we overwrite the separator
2505 (terminated strings are much easier to work with). */
2507 end
= strchr (p
, ';');
2510 end
= p
+ strlen (p
);
2520 warning (_("empty item in \"qSupported\" response"));
2525 name_end
= strchr (p
, '=');
2528 /* This is a name=value entry. */
2529 is_supported
= PACKET_ENABLE
;
2530 value
= name_end
+ 1;
2539 is_supported
= PACKET_ENABLE
;
2543 is_supported
= PACKET_DISABLE
;
2547 is_supported
= PACKET_SUPPORT_UNKNOWN
;
2551 warning (_("unrecognized item \"%s\" in \"qSupported\" response"), p
);
2557 for (i
= 0; i
< ARRAY_SIZE (remote_protocol_features
); i
++)
2558 if (strcmp (remote_protocol_features
[i
].name
, p
) == 0)
2560 const struct protocol_feature
*feature
;
2563 feature
= &remote_protocol_features
[i
];
2564 feature
->func (feature
, is_supported
, value
);
2569 /* If we increased the packet size, make sure to increase the global
2570 buffer size also. We delay this until after parsing the entire
2571 qSupported packet, because this is the same buffer we were
2573 if (rs
->buf_size
< rs
->explicit_packet_size
)
2575 rs
->buf_size
= rs
->explicit_packet_size
;
2576 rs
->buf
= xrealloc (rs
->buf
, rs
->buf_size
);
2579 /* Handle the defaults for unmentioned features. */
2580 for (i
= 0; i
< ARRAY_SIZE (remote_protocol_features
); i
++)
2583 const struct protocol_feature
*feature
;
2585 feature
= &remote_protocol_features
[i
];
2586 feature
->func (feature
, feature
->default_support
, NULL
);
2592 remote_open_1 (char *name
, int from_tty
, struct target_ops
*target
,
2593 int extended_p
, int async_p
)
2595 struct remote_state
*rs
= get_remote_state ();
2597 error (_("To open a remote debug connection, you need to specify what\n"
2598 "serial device is attached to the remote system\n"
2599 "(e.g. /dev/ttyS0, /dev/ttya, COM1, etc.)."));
2601 /* See FIXME above. */
2603 wait_forever_enabled_p
= 1;
2605 /* If we're connected to a running target, target_preopen will kill it.
2606 But if we're connected to a target system with no running process,
2607 then we will still be connected when it returns. Ask this question
2608 first, before target_preopen has a chance to kill anything. */
2609 if (remote_desc
!= NULL
&& !target_has_execution
)
2612 || query (_("Already connected to a remote target. Disconnect? ")))
2615 error (_("Still connected."));
2618 target_preopen (from_tty
);
2620 unpush_target (target
);
2622 /* This time without a query. If we were connected to an
2623 extended-remote target and target_preopen killed the running
2624 process, we may still be connected. If we are starting "target
2625 remote" now, the extended-remote target will not have been
2626 removed by unpush_target. */
2627 if (remote_desc
!= NULL
&& !target_has_execution
)
2630 /* Make sure we send the passed signals list the next time we resume. */
2631 xfree (last_pass_packet
);
2632 last_pass_packet
= NULL
;
2634 remote_fileio_reset ();
2635 reopen_exec_file ();
2638 remote_desc
= remote_serial_open (name
);
2640 perror_with_name (name
);
2642 if (baud_rate
!= -1)
2644 if (serial_setbaudrate (remote_desc
, baud_rate
))
2646 /* The requested speed could not be set. Error out to
2647 top level after closing remote_desc. Take care to
2648 set remote_desc to NULL to avoid closing remote_desc
2650 serial_close (remote_desc
);
2652 perror_with_name (name
);
2656 serial_raw (remote_desc
);
2658 /* If there is something sitting in the buffer we might take it as a
2659 response to a command, which would be bad. */
2660 serial_flush_input (remote_desc
);
2664 puts_filtered ("Remote debugging using ");
2665 puts_filtered (name
);
2666 puts_filtered ("\n");
2668 push_target (target
); /* Switch to using remote target now. */
2670 /* Assume that the target is running, unless we learn otherwise. */
2671 target_mark_running (target
);
2673 /* Reset the target state; these things will be queried either by
2674 remote_query_supported or as they are needed. */
2675 init_all_packet_configs ();
2676 rs
->explicit_packet_size
= 0;
2678 general_thread
= -2;
2679 continue_thread
= -2;
2681 /* Probe for ability to use "ThreadInfo" query, as required. */
2682 use_threadinfo_query
= 1;
2683 use_threadextra_query
= 1;
2685 /* The first packet we send to the target is the optional "supported
2686 packets" request. If the target can answer this, it will tell us
2687 which later probes to skip. */
2688 remote_query_supported ();
2690 /* Next, if the target can specify a description, read it. We do
2691 this before anything involving memory or registers. */
2692 target_find_description ();
2696 /* With this target we start out by owning the terminal. */
2697 remote_async_terminal_ours_p
= 1;
2699 /* FIXME: cagney/1999-09-23: During the initial connection it is
2700 assumed that the target is already ready and able to respond to
2701 requests. Unfortunately remote_start_remote() eventually calls
2702 wait_for_inferior() with no timeout. wait_forever_enabled_p gets
2703 around this. Eventually a mechanism that allows
2704 wait_for_inferior() to expect/get timeouts will be
2706 wait_forever_enabled_p
= 0;
2709 /* First delete any symbols previously loaded from shared libraries. */
2710 no_shared_libraries (NULL
, 0);
2712 /* Start the remote connection. If error() or QUIT, discard this
2713 target (we'd otherwise be in an inconsistent state) and then
2714 propogate the error on up the exception chain. This ensures that
2715 the caller doesn't stumble along blindly assuming that the
2716 function succeeded. The CLI doesn't have this problem but other
2717 UI's, such as MI do.
2719 FIXME: cagney/2002-05-19: Instead of re-throwing the exception,
2720 this function should return an error indication letting the
2721 caller restore the previous state. Unfortunately the command
2722 ``target remote'' is directly wired to this function making that
2723 impossible. On a positive note, the CLI side of this problem has
2724 been fixed - the function set_cmd_context() makes it possible for
2725 all the ``target ....'' commands to share a common callback
2726 function. See cli-dump.c. */
2728 struct gdb_exception ex
;
2729 struct start_remote_args args
;
2731 args
.from_tty
= from_tty
;
2732 args
.target
= target
;
2733 args
.extended_p
= extended_p
;
2735 ex
= catch_exception (uiout
, remote_start_remote
, &args
, RETURN_MASK_ALL
);
2740 wait_forever_enabled_p
= 1;
2741 throw_exception (ex
);
2746 wait_forever_enabled_p
= 1;
2750 /* Tell the remote that we are using the extended protocol. */
2752 getpkt (&rs
->buf
, &rs
->buf_size
, 0);
2755 /* If we connected to a live target, do some additional setup. */
2756 if (target_has_execution
)
2758 if (exec_bfd
) /* No use without an exec file. */
2759 remote_check_symbols (symfile_objfile
);
2763 /* This takes a program previously attached to and detaches it. After
2764 this is done, GDB can be used to debug some other program. We
2765 better not have left any breakpoints in the target program or it'll
2766 die when it hits one. */
2769 remote_detach_1 (char *args
, int from_tty
, int extended
)
2771 struct remote_state
*rs
= get_remote_state ();
2774 error (_("Argument given to \"detach\" when remotely debugging."));
2776 if (!target_has_execution
)
2777 error (_("No process to detach from."));
2779 /* Tell the remote target to detach. */
2780 strcpy (rs
->buf
, "D");
2782 getpkt (&rs
->buf
, &rs
->buf_size
, 0);
2784 if (rs
->buf
[0] == 'E')
2785 error (_("Can't detach process."));
2787 /* Unregister the file descriptor from the event loop. */
2788 if (target_is_async_p ())
2789 serial_async (remote_desc
, NULL
, 0);
2791 target_mourn_inferior ();
2795 puts_filtered ("Detached from remote process.\n");
2797 puts_filtered ("Ending remote debugging.\n");
2802 remote_detach (char *args
, int from_tty
)
2804 remote_detach_1 (args
, from_tty
, 0);
2808 extended_remote_detach (char *args
, int from_tty
)
2810 remote_detach_1 (args
, from_tty
, 1);
2813 /* Same as remote_detach, but don't send the "D" packet; just disconnect. */
2816 remote_disconnect (struct target_ops
*target
, char *args
, int from_tty
)
2819 error (_("Argument given to \"disconnect\" when remotely debugging."));
2821 /* Unregister the file descriptor from the event loop. */
2822 if (target_is_async_p ())
2823 serial_async (remote_desc
, NULL
, 0);
2825 /* Make sure we unpush even the extended remote targets; mourn
2826 won't do it. So call remote_mourn_1 directly instead of
2827 target_mourn_inferior. */
2828 remote_mourn_1 (target
);
2831 puts_filtered ("Ending remote debugging.\n");
2834 /* Attach to the process specified by ARGS. If FROM_TTY is non-zero,
2835 be chatty about it. */
2838 extended_remote_attach_1 (struct target_ops
*target
, char *args
, int from_tty
)
2840 struct remote_state
*rs
= get_remote_state ();
2845 error_no_arg (_("process-id to attach"));
2848 pid
= strtol (args
, &dummy
, 0);
2849 /* Some targets don't set errno on errors, grrr! */
2850 if (pid
== 0 && args
== dummy
)
2851 error (_("Illegal process-id: %s."), args
);
2853 if (remote_protocol_packets
[PACKET_vAttach
].support
== PACKET_DISABLE
)
2854 error (_("This target does not support attaching to a process"));
2856 sprintf (rs
->buf
, "vAttach;%x", pid
);
2858 getpkt (&rs
->buf
, &rs
->buf_size
, 0);
2860 if (packet_ok (rs
->buf
, &remote_protocol_packets
[PACKET_vAttach
]) == PACKET_OK
)
2863 printf_unfiltered (_("Attached to %s\n"),
2864 target_pid_to_str (pid_to_ptid (pid
)));
2866 /* We have a wait response; reuse it. */
2867 rs
->cached_wait_status
= 1;
2869 else if (remote_protocol_packets
[PACKET_vAttach
].support
== PACKET_DISABLE
)
2870 error (_("This target does not support attaching to a process"));
2872 error (_("Attaching to %s failed"),
2873 target_pid_to_str (pid_to_ptid (pid
)));
2875 target_mark_running (target
);
2876 inferior_ptid
= pid_to_ptid (pid
);
2881 extended_remote_attach (char *args
, int from_tty
)
2883 extended_remote_attach_1 (&extended_remote_ops
, args
, from_tty
);
2887 extended_async_remote_attach (char *args
, int from_tty
)
2889 extended_remote_attach_1 (&extended_async_remote_ops
, args
, from_tty
);
2892 /* Convert hex digit A to a number. */
2897 if (a
>= '0' && a
<= '9')
2899 else if (a
>= 'a' && a
<= 'f')
2900 return a
- 'a' + 10;
2901 else if (a
>= 'A' && a
<= 'F')
2902 return a
- 'A' + 10;
2904 error (_("Reply contains invalid hex digit %d"), a
);
2908 hex2bin (const char *hex
, gdb_byte
*bin
, int count
)
2912 for (i
= 0; i
< count
; i
++)
2914 if (hex
[0] == 0 || hex
[1] == 0)
2916 /* Hex string is short, or of uneven length.
2917 Return the count that has been converted so far. */
2920 *bin
++ = fromhex (hex
[0]) * 16 + fromhex (hex
[1]);
2926 /* Convert number NIB to a hex digit. */
2934 return 'a' + nib
- 10;
2938 bin2hex (const gdb_byte
*bin
, char *hex
, int count
)
2941 /* May use a length, or a nul-terminated string as input. */
2943 count
= strlen ((char *) bin
);
2945 for (i
= 0; i
< count
; i
++)
2947 *hex
++ = tohex ((*bin
>> 4) & 0xf);
2948 *hex
++ = tohex (*bin
++ & 0xf);
2954 /* Check for the availability of vCont. This function should also check
2958 remote_vcont_probe (struct remote_state
*rs
)
2962 strcpy (rs
->buf
, "vCont?");
2964 getpkt (&rs
->buf
, &rs
->buf_size
, 0);
2967 /* Make sure that the features we assume are supported. */
2968 if (strncmp (buf
, "vCont", 5) == 0)
2971 int support_s
, support_S
, support_c
, support_C
;
2977 while (p
&& *p
== ';')
2980 if (*p
== 's' && (*(p
+ 1) == ';' || *(p
+ 1) == 0))
2982 else if (*p
== 'S' && (*(p
+ 1) == ';' || *(p
+ 1) == 0))
2984 else if (*p
== 'c' && (*(p
+ 1) == ';' || *(p
+ 1) == 0))
2986 else if (*p
== 'C' && (*(p
+ 1) == ';' || *(p
+ 1) == 0))
2989 p
= strchr (p
, ';');
2992 /* If s, S, c, and C are not all supported, we can't use vCont. Clearing
2993 BUF will make packet_ok disable the packet. */
2994 if (!support_s
|| !support_S
|| !support_c
|| !support_C
)
2998 packet_ok (buf
, &remote_protocol_packets
[PACKET_vCont
]);
3001 /* Resume the remote inferior by using a "vCont" packet. The thread
3002 to be resumed is PTID; STEP and SIGGNAL indicate whether the
3003 resumed thread should be single-stepped and/or signalled. If PTID's
3004 PID is -1, then all threads are resumed; the thread to be stepped and/or
3005 signalled is given in the global INFERIOR_PTID. This function returns
3006 non-zero iff it resumes the inferior.
3008 This function issues a strict subset of all possible vCont commands at the
3012 remote_vcont_resume (ptid_t ptid
, int step
, enum target_signal siggnal
)
3014 struct remote_state
*rs
= get_remote_state ();
3015 int pid
= PIDGET (ptid
);
3017 struct cleanup
*old_cleanup
;
3019 if (remote_protocol_packets
[PACKET_vCont
].support
== PACKET_SUPPORT_UNKNOWN
)
3020 remote_vcont_probe (rs
);
3022 if (remote_protocol_packets
[PACKET_vCont
].support
== PACKET_DISABLE
)
3025 /* If we could generate a wider range of packets, we'd have to worry
3026 about overflowing BUF. Should there be a generic
3027 "multi-part-packet" packet? */
3029 if (PIDGET (inferior_ptid
) == MAGIC_NULL_PID
)
3031 /* MAGIC_NULL_PTID means that we don't have any active threads, so we
3032 don't have any PID numbers the inferior will understand. Make sure
3033 to only send forms that do not specify a PID. */
3034 if (step
&& siggnal
!= TARGET_SIGNAL_0
)
3035 outbuf
= xstrprintf ("vCont;S%02x", siggnal
);
3037 outbuf
= xstrprintf ("vCont;s");
3038 else if (siggnal
!= TARGET_SIGNAL_0
)
3039 outbuf
= xstrprintf ("vCont;C%02x", siggnal
);
3041 outbuf
= xstrprintf ("vCont;c");
3045 /* Resume all threads, with preference for INFERIOR_PTID. */
3046 if (step
&& siggnal
!= TARGET_SIGNAL_0
)
3047 outbuf
= xstrprintf ("vCont;S%02x:%x;c", siggnal
,
3048 PIDGET (inferior_ptid
));
3050 outbuf
= xstrprintf ("vCont;s:%x;c", PIDGET (inferior_ptid
));
3051 else if (siggnal
!= TARGET_SIGNAL_0
)
3052 outbuf
= xstrprintf ("vCont;C%02x:%x;c", siggnal
,
3053 PIDGET (inferior_ptid
));
3055 outbuf
= xstrprintf ("vCont;c");
3059 /* Scheduler locking; resume only PTID. */
3060 if (step
&& siggnal
!= TARGET_SIGNAL_0
)
3061 outbuf
= xstrprintf ("vCont;S%02x:%x", siggnal
, pid
);
3063 outbuf
= xstrprintf ("vCont;s:%x", pid
);
3064 else if (siggnal
!= TARGET_SIGNAL_0
)
3065 outbuf
= xstrprintf ("vCont;C%02x:%x", siggnal
, pid
);
3067 outbuf
= xstrprintf ("vCont;c:%x", pid
);
3070 gdb_assert (outbuf
&& strlen (outbuf
) < get_remote_packet_size ());
3071 old_cleanup
= make_cleanup (xfree
, outbuf
);
3075 do_cleanups (old_cleanup
);
3080 /* Tell the remote machine to resume. */
3082 static enum target_signal last_sent_signal
= TARGET_SIGNAL_0
;
3084 static int last_sent_step
;
3087 remote_resume (ptid_t ptid
, int step
, enum target_signal siggnal
)
3089 struct remote_state
*rs
= get_remote_state ();
3091 int pid
= PIDGET (ptid
);
3093 last_sent_signal
= siggnal
;
3094 last_sent_step
= step
;
3096 /* A hook for when we need to do something at the last moment before
3098 if (deprecated_target_resume_hook
)
3099 (*deprecated_target_resume_hook
) ();
3101 /* Update the inferior on signals to silently pass, if they've changed. */
3102 remote_pass_signals ();
3104 /* The vCont packet doesn't need to specify threads via Hc. */
3105 if (remote_vcont_resume (ptid
, step
, siggnal
))
3108 /* All other supported resume packets do use Hc, so call set_thread. */
3110 set_thread (0, 0); /* Run any thread. */
3112 set_thread (pid
, 0); /* Run this thread. */
3115 if (siggnal
!= TARGET_SIGNAL_0
)
3117 buf
[0] = step
? 'S' : 'C';
3118 buf
[1] = tohex (((int) siggnal
>> 4) & 0xf);
3119 buf
[2] = tohex (((int) siggnal
) & 0xf);
3123 strcpy (buf
, step
? "s" : "c");
3128 /* Same as remote_resume, but with async support. */
3130 remote_async_resume (ptid_t ptid
, int step
, enum target_signal siggnal
)
3132 remote_resume (ptid
, step
, siggnal
);
3134 /* We are about to start executing the inferior, let's register it
3135 with the event loop. NOTE: this is the one place where all the
3136 execution commands end up. We could alternatively do this in each
3137 of the execution commands in infcmd.c. */
3138 /* FIXME: ezannoni 1999-09-28: We may need to move this out of here
3139 into infcmd.c in order to allow inferior function calls to work
3140 NOT asynchronously. */
3141 if (target_can_async_p ())
3142 target_async (inferior_event_handler
, 0);
3143 /* Tell the world that the target is now executing. */
3144 /* FIXME: cagney/1999-09-23: Is it the targets responsibility to set
3145 this? Instead, should the client of target just assume (for
3146 async targets) that the target is going to start executing? Is
3147 this information already found in the continuation block? */
3148 if (target_is_async_p ())
3149 target_executing
= 1;
3153 /* Set up the signal handler for SIGINT, while the target is
3154 executing, ovewriting the 'regular' SIGINT signal handler. */
3156 initialize_sigint_signal_handler (void)
3158 sigint_remote_token
=
3159 create_async_signal_handler (async_remote_interrupt
, NULL
);
3160 signal (SIGINT
, handle_remote_sigint
);
3163 /* Signal handler for SIGINT, while the target is executing. */
3165 handle_remote_sigint (int sig
)
3167 signal (sig
, handle_remote_sigint_twice
);
3168 sigint_remote_twice_token
=
3169 create_async_signal_handler (async_remote_interrupt_twice
, NULL
);
3170 mark_async_signal_handler_wrapper (sigint_remote_token
);
3173 /* Signal handler for SIGINT, installed after SIGINT has already been
3174 sent once. It will take effect the second time that the user sends
3177 handle_remote_sigint_twice (int sig
)
3179 signal (sig
, handle_sigint
);
3180 sigint_remote_twice_token
=
3181 create_async_signal_handler (inferior_event_handler_wrapper
, NULL
);
3182 mark_async_signal_handler_wrapper (sigint_remote_twice_token
);
3185 /* Perform the real interruption of the target execution, in response
3188 async_remote_interrupt (gdb_client_data arg
)
3191 fprintf_unfiltered (gdb_stdlog
, "remote_interrupt called\n");
3196 /* Perform interrupt, if the first attempt did not succeed. Just give
3197 up on the target alltogether. */
3199 async_remote_interrupt_twice (gdb_client_data arg
)
3202 fprintf_unfiltered (gdb_stdlog
, "remote_interrupt_twice called\n");
3203 /* Do something only if the target was not killed by the previous
3205 if (target_executing
)
3208 signal (SIGINT
, handle_remote_sigint
);
3212 /* Reinstall the usual SIGINT handlers, after the target has
3215 cleanup_sigint_signal_handler (void *dummy
)
3217 signal (SIGINT
, handle_sigint
);
3218 if (sigint_remote_twice_token
)
3219 delete_async_signal_handler (&sigint_remote_twice_token
);
3220 if (sigint_remote_token
)
3221 delete_async_signal_handler (&sigint_remote_token
);
3224 /* Send ^C to target to halt it. Target will respond, and send us a
3226 static void (*ofunc
) (int);
3228 /* The command line interface's stop routine. This function is installed
3229 as a signal handler for SIGINT. The first time a user requests a
3230 stop, we call remote_stop to send a break or ^C. If there is no
3231 response from the target (it didn't stop when the user requested it),
3232 we ask the user if he'd like to detach from the target. */
3234 remote_interrupt (int signo
)
3236 /* If this doesn't work, try more severe steps. */
3237 signal (signo
, remote_interrupt_twice
);
3240 fprintf_unfiltered (gdb_stdlog
, "remote_interrupt called\n");
3245 /* The user typed ^C twice. */
3248 remote_interrupt_twice (int signo
)
3250 signal (signo
, ofunc
);
3252 signal (signo
, remote_interrupt
);
3255 /* This is the generic stop called via the target vector. When a target
3256 interrupt is requested, either by the command line or the GUI, we
3257 will eventually end up here. */
3261 /* Send a break or a ^C, depending on user preference. */
3263 fprintf_unfiltered (gdb_stdlog
, "remote_stop called\n");
3266 serial_send_break (remote_desc
);
3268 serial_write (remote_desc
, "\003", 1);
3271 /* Ask the user what to do when an interrupt is received. */
3274 interrupt_query (void)
3276 target_terminal_ours ();
3278 if (query ("Interrupted while waiting for the program.\n\
3279 Give up (and stop debugging it)? "))
3281 target_mourn_inferior ();
3282 deprecated_throw_reason (RETURN_QUIT
);
3285 target_terminal_inferior ();
3288 /* Enable/disable target terminal ownership. Most targets can use
3289 terminal groups to control terminal ownership. Remote targets are
3290 different in that explicit transfer of ownership to/from GDB/target
3294 remote_async_terminal_inferior (void)
3296 /* FIXME: cagney/1999-09-27: Shouldn't need to test for
3297 sync_execution here. This function should only be called when
3298 GDB is resuming the inferior in the forground. A background
3299 resume (``run&'') should leave GDB in control of the terminal and
3300 consequently should not call this code. */
3301 if (!sync_execution
)
3303 /* FIXME: cagney/1999-09-27: Closely related to the above. Make
3304 calls target_terminal_*() idenpotent. The event-loop GDB talking
3305 to an asynchronous target with a synchronous command calls this
3306 function from both event-top.c and infrun.c/infcmd.c. Once GDB
3307 stops trying to transfer the terminal to the target when it
3308 shouldn't this guard can go away. */
3309 if (!remote_async_terminal_ours_p
)
3311 delete_file_handler (input_fd
);
3312 remote_async_terminal_ours_p
= 0;
3313 initialize_sigint_signal_handler ();
3314 /* NOTE: At this point we could also register our selves as the
3315 recipient of all input. Any characters typed could then be
3316 passed on down to the target. */
3320 remote_async_terminal_ours (void)
3322 /* See FIXME in remote_async_terminal_inferior. */
3323 if (!sync_execution
)
3325 /* See FIXME in remote_async_terminal_inferior. */
3326 if (remote_async_terminal_ours_p
)
3328 cleanup_sigint_signal_handler (NULL
);
3329 add_file_handler (input_fd
, stdin_event_handler
, 0);
3330 remote_async_terminal_ours_p
= 1;
3333 /* If nonzero, ignore the next kill. */
3338 remote_console_output (char *msg
)
3342 for (p
= msg
; p
[0] && p
[1]; p
+= 2)
3345 char c
= fromhex (p
[0]) * 16 + fromhex (p
[1]);
3348 fputs_unfiltered (tb
, gdb_stdtarg
);
3350 gdb_flush (gdb_stdtarg
);
3353 /* Wait until the remote machine stops, then return,
3354 storing status in STATUS just as `wait' would.
3355 Returns "pid", which in the case of a multi-threaded
3356 remote OS, is the thread-id. */
3359 remote_wait (ptid_t ptid
, struct target_waitstatus
*status
)
3361 struct remote_state
*rs
= get_remote_state ();
3362 struct remote_arch_state
*rsa
= get_remote_arch_state ();
3363 ULONGEST thread_num
= -1;
3365 int solibs_changed
= 0;
3367 status
->kind
= TARGET_WAITKIND_EXITED
;
3368 status
->value
.integer
= 0;
3374 if (rs
->cached_wait_status
)
3375 /* Use the cached wait status, but only once. */
3376 rs
->cached_wait_status
= 0;
3379 ofunc
= signal (SIGINT
, remote_interrupt
);
3380 /* If the user hit C-c before this packet, or between packets,
3381 pretend that it was hit right here. */
3385 remote_interrupt (SIGINT
);
3387 getpkt (&rs
->buf
, &rs
->buf_size
, 1);
3388 signal (SIGINT
, ofunc
);
3393 /* This is a hook for when we need to do something (perhaps the
3394 collection of trace data) every time the target stops. */
3395 if (deprecated_target_wait_loop_hook
)
3396 (*deprecated_target_wait_loop_hook
) ();
3398 remote_stopped_by_watchpoint_p
= 0;
3402 case 'E': /* Error of some sort. */
3403 warning (_("Remote failure reply: %s"), buf
);
3405 case 'F': /* File-I/O request. */
3406 remote_fileio_request (buf
);
3408 case 'T': /* Status with PC, SP, FP, ... */
3410 gdb_byte regs
[MAX_REGISTER_SIZE
];
3412 /* Expedited reply, containing Signal, {regno, reg} repeat. */
3413 /* format is: 'Tssn...:r...;n...:r...;n...:r...;#cc', where
3415 n... = register number
3416 r... = register contents
3418 p
= &buf
[3]; /* after Txx */
3427 /* If the packet contains a register number save it in
3428 pnum and set p1 to point to the character following
3429 it. Otherwise p1 points to p. */
3431 /* If this packet is an awatch packet, don't parse the
3432 'a' as a register number. */
3434 if (strncmp (p
, "awatch", strlen("awatch")) != 0)
3436 /* Read the ``P'' register number. */
3437 pnum
= strtol (p
, &p_temp
, 16);
3443 if (p1
== p
) /* No register number present here. */
3445 p1
= strchr (p
, ':');
3447 error (_("Malformed packet(a) (missing colon): %s\n\
3450 if (strncmp (p
, "thread", p1
- p
) == 0)
3452 p_temp
= unpack_varlen_hex (++p1
, &thread_num
);
3453 record_currthread (thread_num
);
3456 else if ((strncmp (p
, "watch", p1
- p
) == 0)
3457 || (strncmp (p
, "rwatch", p1
- p
) == 0)
3458 || (strncmp (p
, "awatch", p1
- p
) == 0))
3460 remote_stopped_by_watchpoint_p
= 1;
3461 p
= unpack_varlen_hex (++p1
, &addr
);
3462 remote_watch_data_address
= (CORE_ADDR
)addr
;
3464 else if (strncmp (p
, "library", p1
- p
) == 0)
3468 while (*p_temp
&& *p_temp
!= ';')
3476 /* Silently skip unknown optional info. */
3477 p_temp
= strchr (p1
+ 1, ';');
3484 struct packet_reg
*reg
= packet_reg_from_pnum (rsa
, pnum
);
3488 error (_("Malformed packet(b) (missing colon): %s\n\
3493 error (_("Remote sent bad register number %s: %s\n\
3495 phex_nz (pnum
, 0), p
, buf
);
3497 fieldsize
= hex2bin (p
, regs
,
3498 register_size (current_gdbarch
,
3501 if (fieldsize
< register_size (current_gdbarch
,
3503 warning (_("Remote reply is too short: %s"), buf
);
3504 regcache_raw_supply (get_current_regcache (),
3509 error (_("Remote register badly formatted: %s\nhere: %s"),
3514 case 'S': /* Old style status, just signal only. */
3516 status
->kind
= TARGET_WAITKIND_LOADED
;
3519 status
->kind
= TARGET_WAITKIND_STOPPED
;
3520 status
->value
.sig
= (enum target_signal
)
3521 (((fromhex (buf
[1])) << 4) + (fromhex (buf
[2])));
3526 thread_num
= strtol ((const char *) &buf
[4], NULL
, 16);
3527 record_currthread (thread_num
);
3530 case 'W': /* Target exited. */
3532 /* The remote process exited. */
3533 status
->kind
= TARGET_WAITKIND_EXITED
;
3534 status
->value
.integer
= (fromhex (buf
[1]) << 4) + fromhex (buf
[2]);
3538 status
->kind
= TARGET_WAITKIND_SIGNALLED
;
3539 status
->value
.sig
= (enum target_signal
)
3540 (((fromhex (buf
[1])) << 4) + (fromhex (buf
[2])));
3544 case 'O': /* Console output. */
3545 remote_console_output (buf
+ 1);
3548 if (last_sent_signal
!= TARGET_SIGNAL_0
)
3550 /* Zero length reply means that we tried 'S' or 'C' and
3551 the remote system doesn't support it. */
3552 target_terminal_ours_for_output ();
3554 ("Can't send signals to this remote system. %s not sent.\n",
3555 target_signal_to_name (last_sent_signal
));
3556 last_sent_signal
= TARGET_SIGNAL_0
;
3557 target_terminal_inferior ();
3559 strcpy ((char *) buf
, last_sent_step
? "s" : "c");
3560 putpkt ((char *) buf
);
3563 /* else fallthrough */
3565 warning (_("Invalid remote reply: %s"), buf
);
3570 if (thread_num
!= -1)
3572 return pid_to_ptid (thread_num
);
3574 return inferior_ptid
;
3577 /* Async version of remote_wait. */
3579 remote_async_wait (ptid_t ptid
, struct target_waitstatus
*status
)
3581 struct remote_state
*rs
= get_remote_state ();
3582 struct remote_arch_state
*rsa
= get_remote_arch_state ();
3583 ULONGEST thread_num
= -1;
3585 int solibs_changed
= 0;
3587 status
->kind
= TARGET_WAITKIND_EXITED
;
3588 status
->value
.integer
= 0;
3590 remote_stopped_by_watchpoint_p
= 0;
3596 if (rs
->cached_wait_status
)
3597 /* Use the cached wait status, but only once. */
3598 rs
->cached_wait_status
= 0;
3601 if (!target_is_async_p ())
3603 ofunc
= signal (SIGINT
, remote_interrupt
);
3604 /* If the user hit C-c before this packet, or between packets,
3605 pretend that it was hit right here. */
3609 remote_interrupt (SIGINT
);
3612 /* FIXME: cagney/1999-09-27: If we're in async mode we should
3613 _never_ wait for ever -> test on target_is_async_p().
3614 However, before we do that we need to ensure that the caller
3615 knows how to take the target into/out of async mode. */
3616 getpkt (&rs
->buf
, &rs
->buf_size
, wait_forever_enabled_p
);
3617 if (!target_is_async_p ())
3618 signal (SIGINT
, ofunc
);
3623 /* This is a hook for when we need to do something (perhaps the
3624 collection of trace data) every time the target stops. */
3625 if (deprecated_target_wait_loop_hook
)
3626 (*deprecated_target_wait_loop_hook
) ();
3630 case 'E': /* Error of some sort. */
3631 warning (_("Remote failure reply: %s"), buf
);
3633 case 'F': /* File-I/O request. */
3634 remote_fileio_request (buf
);
3636 case 'T': /* Status with PC, SP, FP, ... */
3638 gdb_byte regs
[MAX_REGISTER_SIZE
];
3640 /* Expedited reply, containing Signal, {regno, reg} repeat. */
3641 /* format is: 'Tssn...:r...;n...:r...;n...:r...;#cc', where
3643 n... = register number
3644 r... = register contents
3646 p
= &buf
[3]; /* after Txx */
3655 /* If the packet contains a register number, save it
3656 in pnum and set p1 to point to the character
3657 following it. Otherwise p1 points to p. */
3659 /* If this packet is an awatch packet, don't parse the 'a'
3660 as a register number. */
3662 if (strncmp (p
, "awatch", strlen("awatch")) != 0)
3664 /* Read the register number. */
3665 pnum
= strtol (p
, &p_temp
, 16);
3671 if (p1
== p
) /* No register number present here. */
3673 p1
= strchr (p
, ':');
3675 error (_("Malformed packet(a) (missing colon): %s\n\
3678 if (strncmp (p
, "thread", p1
- p
) == 0)
3680 p_temp
= unpack_varlen_hex (++p1
, &thread_num
);
3681 record_currthread (thread_num
);
3684 else if ((strncmp (p
, "watch", p1
- p
) == 0)
3685 || (strncmp (p
, "rwatch", p1
- p
) == 0)
3686 || (strncmp (p
, "awatch", p1
- p
) == 0))
3688 remote_stopped_by_watchpoint_p
= 1;
3689 p
= unpack_varlen_hex (++p1
, &addr
);
3690 remote_watch_data_address
= (CORE_ADDR
)addr
;
3692 else if (strncmp (p
, "library", p1
- p
) == 0)
3696 while (*p_temp
&& *p_temp
!= ';')
3704 /* Silently skip unknown optional info. */
3705 p_temp
= strchr (p1
+ 1, ';');
3713 struct packet_reg
*reg
= packet_reg_from_pnum (rsa
, pnum
);
3716 error (_("Malformed packet(b) (missing colon): %s\n\
3721 error (_("Remote sent bad register number %ld: %s\n\
3725 fieldsize
= hex2bin (p
, regs
,
3726 register_size (current_gdbarch
,
3729 if (fieldsize
< register_size (current_gdbarch
,
3731 warning (_("Remote reply is too short: %s"), buf
);
3732 regcache_raw_supply (get_current_regcache (),
3737 error (_("Remote register badly formatted: %s\nhere: %s"),
3742 case 'S': /* Old style status, just signal only. */
3744 status
->kind
= TARGET_WAITKIND_LOADED
;
3747 status
->kind
= TARGET_WAITKIND_STOPPED
;
3748 status
->value
.sig
= (enum target_signal
)
3749 (((fromhex (buf
[1])) << 4) + (fromhex (buf
[2])));
3754 thread_num
= strtol ((const char *) &buf
[4], NULL
, 16);
3755 record_currthread (thread_num
);
3758 case 'W': /* Target exited. */
3760 /* The remote process exited. */
3761 status
->kind
= TARGET_WAITKIND_EXITED
;
3762 status
->value
.integer
= (fromhex (buf
[1]) << 4) + fromhex (buf
[2]);
3766 status
->kind
= TARGET_WAITKIND_SIGNALLED
;
3767 status
->value
.sig
= (enum target_signal
)
3768 (((fromhex (buf
[1])) << 4) + (fromhex (buf
[2])));
3772 case 'O': /* Console output. */
3773 remote_console_output (buf
+ 1);
3774 /* Return immediately to the event loop. The event loop will
3775 still be waiting on the inferior afterwards. */
3776 status
->kind
= TARGET_WAITKIND_IGNORE
;
3779 if (last_sent_signal
!= TARGET_SIGNAL_0
)
3781 /* Zero length reply means that we tried 'S' or 'C' and
3782 the remote system doesn't support it. */
3783 target_terminal_ours_for_output ();
3785 ("Can't send signals to this remote system. %s not sent.\n",
3786 target_signal_to_name (last_sent_signal
));
3787 last_sent_signal
= TARGET_SIGNAL_0
;
3788 target_terminal_inferior ();
3790 strcpy ((char *) buf
, last_sent_step
? "s" : "c");
3791 putpkt ((char *) buf
);
3794 /* else fallthrough */
3796 warning (_("Invalid remote reply: %s"), buf
);
3801 if (thread_num
!= -1)
3803 return pid_to_ptid (thread_num
);
3805 return inferior_ptid
;
3808 /* Fetch a single register using a 'p' packet. */
3811 fetch_register_using_p (struct regcache
*regcache
, struct packet_reg
*reg
)
3813 struct remote_state
*rs
= get_remote_state ();
3815 char regp
[MAX_REGISTER_SIZE
];
3818 if (remote_protocol_packets
[PACKET_p
].support
== PACKET_DISABLE
)
3821 if (reg
->pnum
== -1)
3826 p
+= hexnumstr (p
, reg
->pnum
);
3828 remote_send (&rs
->buf
, &rs
->buf_size
);
3832 switch (packet_ok (buf
, &remote_protocol_packets
[PACKET_p
]))
3836 case PACKET_UNKNOWN
:
3839 error (_("Could not fetch register \"%s\""),
3840 gdbarch_register_name (get_regcache_arch (regcache
), reg
->regnum
));
3843 /* If this register is unfetchable, tell the regcache. */
3846 regcache_raw_supply (regcache
, reg
->regnum
, NULL
);
3850 /* Otherwise, parse and supply the value. */
3856 error (_("fetch_register_using_p: early buf termination"));
3858 regp
[i
++] = fromhex (p
[0]) * 16 + fromhex (p
[1]);
3861 regcache_raw_supply (regcache
, reg
->regnum
, regp
);
3865 /* Fetch the registers included in the target's 'g' packet. */
3868 send_g_packet (void)
3870 struct remote_state
*rs
= get_remote_state ();
3875 sprintf (rs
->buf
, "g");
3876 remote_send (&rs
->buf
, &rs
->buf_size
);
3878 /* We can get out of synch in various cases. If the first character
3879 in the buffer is not a hex character, assume that has happened
3880 and try to fetch another packet to read. */
3881 while ((rs
->buf
[0] < '0' || rs
->buf
[0] > '9')
3882 && (rs
->buf
[0] < 'A' || rs
->buf
[0] > 'F')
3883 && (rs
->buf
[0] < 'a' || rs
->buf
[0] > 'f')
3884 && rs
->buf
[0] != 'x') /* New: unavailable register value. */
3887 fprintf_unfiltered (gdb_stdlog
,
3888 "Bad register packet; fetching a new packet\n");
3889 getpkt (&rs
->buf
, &rs
->buf_size
, 0);
3892 buf_len
= strlen (rs
->buf
);
3894 /* Sanity check the received packet. */
3895 if (buf_len
% 2 != 0)
3896 error (_("Remote 'g' packet reply is of odd length: %s"), rs
->buf
);
3902 process_g_packet (struct regcache
*regcache
)
3904 struct gdbarch
*gdbarch
= get_regcache_arch (regcache
);
3905 struct remote_state
*rs
= get_remote_state ();
3906 struct remote_arch_state
*rsa
= get_remote_arch_state ();
3911 buf_len
= strlen (rs
->buf
);
3913 /* Further sanity checks, with knowledge of the architecture. */
3914 if (buf_len
> 2 * rsa
->sizeof_g_packet
)
3915 error (_("Remote 'g' packet reply is too long: %s"), rs
->buf
);
3917 /* Save the size of the packet sent to us by the target. It is used
3918 as a heuristic when determining the max size of packets that the
3919 target can safely receive. */
3920 if (rsa
->actual_register_packet_size
== 0)
3921 rsa
->actual_register_packet_size
= buf_len
;
3923 /* If this is smaller than we guessed the 'g' packet would be,
3924 update our records. A 'g' reply that doesn't include a register's
3925 value implies either that the register is not available, or that
3926 the 'p' packet must be used. */
3927 if (buf_len
< 2 * rsa
->sizeof_g_packet
)
3929 rsa
->sizeof_g_packet
= buf_len
/ 2;
3931 for (i
= 0; i
< gdbarch_num_regs (gdbarch
); i
++)
3933 if (rsa
->regs
[i
].pnum
== -1)
3936 if (rsa
->regs
[i
].offset
>= rsa
->sizeof_g_packet
)
3937 rsa
->regs
[i
].in_g_packet
= 0;
3939 rsa
->regs
[i
].in_g_packet
= 1;
3943 regs
= alloca (rsa
->sizeof_g_packet
);
3945 /* Unimplemented registers read as all bits zero. */
3946 memset (regs
, 0, rsa
->sizeof_g_packet
);
3948 /* Reply describes registers byte by byte, each byte encoded as two
3949 hex characters. Suck them all up, then supply them to the
3950 register cacheing/storage mechanism. */
3953 for (i
= 0; i
< rsa
->sizeof_g_packet
; i
++)
3955 if (p
[0] == 0 || p
[1] == 0)
3956 /* This shouldn't happen - we adjusted sizeof_g_packet above. */
3957 internal_error (__FILE__
, __LINE__
,
3958 "unexpected end of 'g' packet reply");
3960 if (p
[0] == 'x' && p
[1] == 'x')
3961 regs
[i
] = 0; /* 'x' */
3963 regs
[i
] = fromhex (p
[0]) * 16 + fromhex (p
[1]);
3969 for (i
= 0; i
< gdbarch_num_regs (gdbarch
); i
++)
3971 struct packet_reg
*r
= &rsa
->regs
[i
];
3974 if (r
->offset
* 2 >= strlen (rs
->buf
))
3975 /* This shouldn't happen - we adjusted in_g_packet above. */
3976 internal_error (__FILE__
, __LINE__
,
3977 "unexpected end of 'g' packet reply");
3978 else if (rs
->buf
[r
->offset
* 2] == 'x')
3980 gdb_assert (r
->offset
* 2 < strlen (rs
->buf
));
3981 /* The register isn't available, mark it as such (at
3982 the same time setting the value to zero). */
3983 regcache_raw_supply (regcache
, r
->regnum
, NULL
);
3986 regcache_raw_supply (regcache
, r
->regnum
,
3994 fetch_registers_using_g (struct regcache
*regcache
)
3997 process_g_packet (regcache
);
4001 remote_fetch_registers (struct regcache
*regcache
, int regnum
)
4003 struct remote_state
*rs
= get_remote_state ();
4004 struct remote_arch_state
*rsa
= get_remote_arch_state ();
4007 set_thread (PIDGET (inferior_ptid
), 1);
4011 struct packet_reg
*reg
= packet_reg_from_regnum (rsa
, regnum
);
4012 gdb_assert (reg
!= NULL
);
4014 /* If this register might be in the 'g' packet, try that first -
4015 we are likely to read more than one register. If this is the
4016 first 'g' packet, we might be overly optimistic about its
4017 contents, so fall back to 'p'. */
4018 if (reg
->in_g_packet
)
4020 fetch_registers_using_g (regcache
);
4021 if (reg
->in_g_packet
)
4025 if (fetch_register_using_p (regcache
, reg
))
4028 /* This register is not available. */
4029 regcache_raw_supply (regcache
, reg
->regnum
, NULL
);
4034 fetch_registers_using_g (regcache
);
4036 for (i
= 0; i
< gdbarch_num_regs (get_regcache_arch (regcache
)); i
++)
4037 if (!rsa
->regs
[i
].in_g_packet
)
4038 if (!fetch_register_using_p (regcache
, &rsa
->regs
[i
]))
4040 /* This register is not available. */
4041 regcache_raw_supply (regcache
, i
, NULL
);
4045 /* Prepare to store registers. Since we may send them all (using a
4046 'G' request), we have to read out the ones we don't want to change
4050 remote_prepare_to_store (struct regcache
*regcache
)
4052 struct remote_arch_state
*rsa
= get_remote_arch_state ();
4054 gdb_byte buf
[MAX_REGISTER_SIZE
];
4056 /* Make sure the entire registers array is valid. */
4057 switch (remote_protocol_packets
[PACKET_P
].support
)
4059 case PACKET_DISABLE
:
4060 case PACKET_SUPPORT_UNKNOWN
:
4061 /* Make sure all the necessary registers are cached. */
4062 for (i
= 0; i
< gdbarch_num_regs (get_regcache_arch (regcache
)); i
++)
4063 if (rsa
->regs
[i
].in_g_packet
)
4064 regcache_raw_read (regcache
, rsa
->regs
[i
].regnum
, buf
);
4071 /* Helper: Attempt to store REGNUM using the P packet. Return fail IFF
4072 packet was not recognized. */
4075 store_register_using_P (const struct regcache
*regcache
, struct packet_reg
*reg
)
4077 struct gdbarch
*gdbarch
= get_regcache_arch (regcache
);
4078 struct remote_state
*rs
= get_remote_state ();
4079 struct remote_arch_state
*rsa
= get_remote_arch_state ();
4080 /* Try storing a single register. */
4081 char *buf
= rs
->buf
;
4082 gdb_byte regp
[MAX_REGISTER_SIZE
];
4085 if (remote_protocol_packets
[PACKET_P
].support
== PACKET_DISABLE
)
4088 if (reg
->pnum
== -1)
4091 xsnprintf (buf
, get_remote_packet_size (), "P%s=", phex_nz (reg
->pnum
, 0));
4092 p
= buf
+ strlen (buf
);
4093 regcache_raw_collect (regcache
, reg
->regnum
, regp
);
4094 bin2hex (regp
, p
, register_size (gdbarch
, reg
->regnum
));
4095 remote_send (&rs
->buf
, &rs
->buf_size
);
4097 switch (packet_ok (rs
->buf
, &remote_protocol_packets
[PACKET_P
]))
4102 error (_("Could not write register \"%s\""),
4103 gdbarch_register_name (gdbarch
, reg
->regnum
));
4104 case PACKET_UNKNOWN
:
4107 internal_error (__FILE__
, __LINE__
, _("Bad result from packet_ok"));
4111 /* Store register REGNUM, or all registers if REGNUM == -1, from the
4112 contents of the register cache buffer. FIXME: ignores errors. */
4115 store_registers_using_G (const struct regcache
*regcache
)
4117 struct remote_state
*rs
= get_remote_state ();
4118 struct remote_arch_state
*rsa
= get_remote_arch_state ();
4122 /* Extract all the registers in the regcache copying them into a
4126 regs
= alloca (rsa
->sizeof_g_packet
);
4127 memset (regs
, 0, rsa
->sizeof_g_packet
);
4128 for (i
= 0; i
< gdbarch_num_regs (get_regcache_arch (regcache
)); i
++)
4130 struct packet_reg
*r
= &rsa
->regs
[i
];
4132 regcache_raw_collect (regcache
, r
->regnum
, regs
+ r
->offset
);
4136 /* Command describes registers byte by byte,
4137 each byte encoded as two hex characters. */
4140 /* remote_prepare_to_store insures that rsa->sizeof_g_packet gets
4142 bin2hex (regs
, p
, rsa
->sizeof_g_packet
);
4143 remote_send (&rs
->buf
, &rs
->buf_size
);
4146 /* Store register REGNUM, or all registers if REGNUM == -1, from the contents
4147 of the register cache buffer. FIXME: ignores errors. */
4150 remote_store_registers (struct regcache
*regcache
, int regnum
)
4152 struct remote_state
*rs
= get_remote_state ();
4153 struct remote_arch_state
*rsa
= get_remote_arch_state ();
4156 set_thread (PIDGET (inferior_ptid
), 1);
4160 struct packet_reg
*reg
= packet_reg_from_regnum (rsa
, regnum
);
4161 gdb_assert (reg
!= NULL
);
4163 /* Always prefer to store registers using the 'P' packet if
4164 possible; we often change only a small number of registers.
4165 Sometimes we change a larger number; we'd need help from a
4166 higher layer to know to use 'G'. */
4167 if (store_register_using_P (regcache
, reg
))
4170 /* For now, don't complain if we have no way to write the
4171 register. GDB loses track of unavailable registers too
4172 easily. Some day, this may be an error. We don't have
4173 any way to read the register, either... */
4174 if (!reg
->in_g_packet
)
4177 store_registers_using_G (regcache
);
4181 store_registers_using_G (regcache
);
4183 for (i
= 0; i
< gdbarch_num_regs (get_regcache_arch (regcache
)); i
++)
4184 if (!rsa
->regs
[i
].in_g_packet
)
4185 if (!store_register_using_P (regcache
, &rsa
->regs
[i
]))
4186 /* See above for why we do not issue an error here. */
4191 /* Return the number of hex digits in num. */
4194 hexnumlen (ULONGEST num
)
4198 for (i
= 0; num
!= 0; i
++)
4204 /* Set BUF to the minimum number of hex digits representing NUM. */
4207 hexnumstr (char *buf
, ULONGEST num
)
4209 int len
= hexnumlen (num
);
4210 return hexnumnstr (buf
, num
, len
);
4214 /* Set BUF to the hex digits representing NUM, padded to WIDTH characters. */
4217 hexnumnstr (char *buf
, ULONGEST num
, int width
)
4223 for (i
= width
- 1; i
>= 0; i
--)
4225 buf
[i
] = "0123456789abcdef"[(num
& 0xf)];
4232 /* Mask all but the least significant REMOTE_ADDRESS_SIZE bits. */
4235 remote_address_masked (CORE_ADDR addr
)
4237 int address_size
= remote_address_size
;
4238 /* If "remoteaddresssize" was not set, default to target address size. */
4240 address_size
= gdbarch_addr_bit (current_gdbarch
);
4242 if (address_size
> 0
4243 && address_size
< (sizeof (ULONGEST
) * 8))
4245 /* Only create a mask when that mask can safely be constructed
4246 in a ULONGEST variable. */
4248 mask
= (mask
<< address_size
) - 1;
4254 /* Convert BUFFER, binary data at least LEN bytes long, into escaped
4255 binary data in OUT_BUF. Set *OUT_LEN to the length of the data
4256 encoded in OUT_BUF, and return the number of bytes in OUT_BUF
4257 (which may be more than *OUT_LEN due to escape characters). The
4258 total number of bytes in the output buffer will be at most
4262 remote_escape_output (const gdb_byte
*buffer
, int len
,
4263 gdb_byte
*out_buf
, int *out_len
,
4266 int input_index
, output_index
;
4269 for (input_index
= 0; input_index
< len
; input_index
++)
4271 gdb_byte b
= buffer
[input_index
];
4273 if (b
== '$' || b
== '#' || b
== '}')
4275 /* These must be escaped. */
4276 if (output_index
+ 2 > out_maxlen
)
4278 out_buf
[output_index
++] = '}';
4279 out_buf
[output_index
++] = b
^ 0x20;
4283 if (output_index
+ 1 > out_maxlen
)
4285 out_buf
[output_index
++] = b
;
4289 *out_len
= input_index
;
4290 return output_index
;
4293 /* Convert BUFFER, escaped data LEN bytes long, into binary data
4294 in OUT_BUF. Return the number of bytes written to OUT_BUF.
4295 Raise an error if the total number of bytes exceeds OUT_MAXLEN.
4297 This function reverses remote_escape_output. It allows more
4298 escaped characters than that function does, in particular because
4299 '*' must be escaped to avoid the run-length encoding processing
4300 in reading packets. */
4303 remote_unescape_input (const gdb_byte
*buffer
, int len
,
4304 gdb_byte
*out_buf
, int out_maxlen
)
4306 int input_index
, output_index
;
4311 for (input_index
= 0; input_index
< len
; input_index
++)
4313 gdb_byte b
= buffer
[input_index
];
4315 if (output_index
+ 1 > out_maxlen
)
4317 warning (_("Received too much data from remote target;"
4318 " ignoring overflow."));
4319 return output_index
;
4324 out_buf
[output_index
++] = b
^ 0x20;
4330 out_buf
[output_index
++] = b
;
4334 error (_("Unmatched escape character in target response."));
4336 return output_index
;
4339 /* Determine whether the remote target supports binary downloading.
4340 This is accomplished by sending a no-op memory write of zero length
4341 to the target at the specified address. It does not suffice to send
4342 the whole packet, since many stubs strip the eighth bit and
4343 subsequently compute a wrong checksum, which causes real havoc with
4346 NOTE: This can still lose if the serial line is not eight-bit
4347 clean. In cases like this, the user should clear "remote
4351 check_binary_download (CORE_ADDR addr
)
4353 struct remote_state
*rs
= get_remote_state ();
4355 switch (remote_protocol_packets
[PACKET_X
].support
)
4357 case PACKET_DISABLE
:
4361 case PACKET_SUPPORT_UNKNOWN
:
4367 p
+= hexnumstr (p
, (ULONGEST
) addr
);
4369 p
+= hexnumstr (p
, (ULONGEST
) 0);
4373 putpkt_binary (rs
->buf
, (int) (p
- rs
->buf
));
4374 getpkt (&rs
->buf
, &rs
->buf_size
, 0);
4376 if (rs
->buf
[0] == '\0')
4379 fprintf_unfiltered (gdb_stdlog
,
4380 "binary downloading NOT suppported by target\n");
4381 remote_protocol_packets
[PACKET_X
].support
= PACKET_DISABLE
;
4386 fprintf_unfiltered (gdb_stdlog
,
4387 "binary downloading suppported by target\n");
4388 remote_protocol_packets
[PACKET_X
].support
= PACKET_ENABLE
;
4395 /* Write memory data directly to the remote machine.
4396 This does not inform the data cache; the data cache uses this.
4397 HEADER is the starting part of the packet.
4398 MEMADDR is the address in the remote memory space.
4399 MYADDR is the address of the buffer in our space.
4400 LEN is the number of bytes.
4401 PACKET_FORMAT should be either 'X' or 'M', and indicates if we
4402 should send data as binary ('X'), or hex-encoded ('M').
4404 The function creates packet of the form
4405 <HEADER><ADDRESS>,<LENGTH>:<DATA>
4407 where encoding of <DATA> is termined by PACKET_FORMAT.
4409 If USE_LENGTH is 0, then the <LENGTH> field and the preceding comma
4412 Returns the number of bytes transferred, or 0 (setting errno) for
4413 error. Only transfer a single packet. */
4416 remote_write_bytes_aux (const char *header
, CORE_ADDR memaddr
,
4417 const gdb_byte
*myaddr
, int len
,
4418 char packet_format
, int use_length
)
4420 struct remote_state
*rs
= get_remote_state ();
4430 if (packet_format
!= 'X' && packet_format
!= 'M')
4431 internal_error (__FILE__
, __LINE__
,
4432 "remote_write_bytes_aux: bad packet format");
4437 payload_size
= get_memory_write_packet_size ();
4439 /* The packet buffer will be large enough for the payload;
4440 get_memory_packet_size ensures this. */
4443 /* Compute the size of the actual payload by subtracting out the
4444 packet header and footer overhead: "$M<memaddr>,<len>:...#nn".
4446 payload_size
-= strlen ("$,:#NN");
4448 /* The comma won't be used. */
4450 header_length
= strlen (header
);
4451 payload_size
-= header_length
;
4452 payload_size
-= hexnumlen (memaddr
);
4454 /* Construct the packet excluding the data: "<header><memaddr>,<len>:". */
4456 strcat (rs
->buf
, header
);
4457 p
= rs
->buf
+ strlen (header
);
4459 /* Compute a best guess of the number of bytes actually transfered. */
4460 if (packet_format
== 'X')
4462 /* Best guess at number of bytes that will fit. */
4463 todo
= min (len
, payload_size
);
4465 payload_size
-= hexnumlen (todo
);
4466 todo
= min (todo
, payload_size
);
4470 /* Num bytes that will fit. */
4471 todo
= min (len
, payload_size
/ 2);
4473 payload_size
-= hexnumlen (todo
);
4474 todo
= min (todo
, payload_size
/ 2);
4478 internal_error (__FILE__
, __LINE__
,
4479 _("minumum packet size too small to write data"));
4481 /* If we already need another packet, then try to align the end
4482 of this packet to a useful boundary. */
4483 if (todo
> 2 * REMOTE_ALIGN_WRITES
&& todo
< len
)
4484 todo
= ((memaddr
+ todo
) & ~(REMOTE_ALIGN_WRITES
- 1)) - memaddr
;
4486 /* Append "<memaddr>". */
4487 memaddr
= remote_address_masked (memaddr
);
4488 p
+= hexnumstr (p
, (ULONGEST
) memaddr
);
4495 /* Append <len>. Retain the location/size of <len>. It may need to
4496 be adjusted once the packet body has been created. */
4498 plenlen
= hexnumstr (p
, (ULONGEST
) todo
);
4506 /* Append the packet body. */
4507 if (packet_format
== 'X')
4509 /* Binary mode. Send target system values byte by byte, in
4510 increasing byte addresses. Only escape certain critical
4512 payload_length
= remote_escape_output (myaddr
, todo
, p
, &nr_bytes
,
4515 /* If not all TODO bytes fit, then we'll need another packet. Make
4516 a second try to keep the end of the packet aligned. Don't do
4517 this if the packet is tiny. */
4518 if (nr_bytes
< todo
&& nr_bytes
> 2 * REMOTE_ALIGN_WRITES
)
4522 new_nr_bytes
= (((memaddr
+ nr_bytes
) & ~(REMOTE_ALIGN_WRITES
- 1))
4524 if (new_nr_bytes
!= nr_bytes
)
4525 payload_length
= remote_escape_output (myaddr
, new_nr_bytes
,
4530 p
+= payload_length
;
4531 if (use_length
&& nr_bytes
< todo
)
4533 /* Escape chars have filled up the buffer prematurely,
4534 and we have actually sent fewer bytes than planned.
4535 Fix-up the length field of the packet. Use the same
4536 number of characters as before. */
4537 plen
+= hexnumnstr (plen
, (ULONGEST
) nr_bytes
, plenlen
);
4538 *plen
= ':'; /* overwrite \0 from hexnumnstr() */
4543 /* Normal mode: Send target system values byte by byte, in
4544 increasing byte addresses. Each byte is encoded as a two hex
4546 nr_bytes
= bin2hex (myaddr
, p
, todo
);
4550 putpkt_binary (rs
->buf
, (int) (p
- rs
->buf
));
4551 getpkt (&rs
->buf
, &rs
->buf_size
, 0);
4553 if (rs
->buf
[0] == 'E')
4555 /* There is no correspondance between what the remote protocol
4556 uses for errors and errno codes. We would like a cleaner way
4557 of representing errors (big enough to include errno codes,
4558 bfd_error codes, and others). But for now just return EIO. */
4563 /* Return NR_BYTES, not TODO, in case escape chars caused us to send
4564 fewer bytes than we'd planned. */
4568 /* Write memory data directly to the remote machine.
4569 This does not inform the data cache; the data cache uses this.
4570 MEMADDR is the address in the remote memory space.
4571 MYADDR is the address of the buffer in our space.
4572 LEN is the number of bytes.
4574 Returns number of bytes transferred, or 0 (setting errno) for
4575 error. Only transfer a single packet. */
4578 remote_write_bytes (CORE_ADDR memaddr
, const gdb_byte
*myaddr
, int len
)
4580 char *packet_format
= 0;
4582 /* Check whether the target supports binary download. */
4583 check_binary_download (memaddr
);
4585 switch (remote_protocol_packets
[PACKET_X
].support
)
4588 packet_format
= "X";
4590 case PACKET_DISABLE
:
4591 packet_format
= "M";
4593 case PACKET_SUPPORT_UNKNOWN
:
4594 internal_error (__FILE__
, __LINE__
,
4595 _("remote_write_bytes: bad internal state"));
4597 internal_error (__FILE__
, __LINE__
, _("bad switch"));
4600 return remote_write_bytes_aux (packet_format
,
4601 memaddr
, myaddr
, len
, packet_format
[0], 1);
4604 /* Read memory data directly from the remote machine.
4605 This does not use the data cache; the data cache uses this.
4606 MEMADDR is the address in the remote memory space.
4607 MYADDR is the address of the buffer in our space.
4608 LEN is the number of bytes.
4610 Returns number of bytes transferred, or 0 for error. */
4612 /* NOTE: cagney/1999-10-18: This function (and its siblings in other
4613 remote targets) shouldn't attempt to read the entire buffer.
4614 Instead it should read a single packet worth of data and then
4615 return the byte size of that packet to the caller. The caller (its
4616 caller and its callers caller ;-) already contains code for
4617 handling partial reads. */
4620 remote_read_bytes (CORE_ADDR memaddr
, gdb_byte
*myaddr
, int len
)
4622 struct remote_state
*rs
= get_remote_state ();
4623 int max_buf_size
; /* Max size of packet output buffer. */
4629 max_buf_size
= get_memory_read_packet_size ();
4630 /* The packet buffer will be large enough for the payload;
4631 get_memory_packet_size ensures this. */
4640 todo
= min (len
, max_buf_size
/ 2); /* num bytes that will fit */
4642 /* construct "m"<memaddr>","<len>" */
4643 /* sprintf (rs->buf, "m%lx,%x", (unsigned long) memaddr, todo); */
4644 memaddr
= remote_address_masked (memaddr
);
4647 p
+= hexnumstr (p
, (ULONGEST
) memaddr
);
4649 p
+= hexnumstr (p
, (ULONGEST
) todo
);
4653 getpkt (&rs
->buf
, &rs
->buf_size
, 0);
4655 if (rs
->buf
[0] == 'E'
4656 && isxdigit (rs
->buf
[1]) && isxdigit (rs
->buf
[2])
4657 && rs
->buf
[3] == '\0')
4659 /* There is no correspondance between what the remote
4660 protocol uses for errors and errno codes. We would like
4661 a cleaner way of representing errors (big enough to
4662 include errno codes, bfd_error codes, and others). But
4663 for now just return EIO. */
4668 /* Reply describes memory byte by byte,
4669 each byte encoded as two hex characters. */
4672 if ((i
= hex2bin (p
, myaddr
, todo
)) < todo
)
4674 /* Reply is short. This means that we were able to read
4675 only part of what we wanted to. */
4676 return i
+ (origlen
- len
);
4685 /* Read or write LEN bytes from inferior memory at MEMADDR,
4686 transferring to or from debugger address BUFFER. Write to inferior
4687 if SHOULD_WRITE is nonzero. Returns length of data written or
4688 read; 0 for error. TARGET is unused. */
4691 remote_xfer_memory (CORE_ADDR mem_addr
, gdb_byte
*buffer
, int mem_len
,
4692 int should_write
, struct mem_attrib
*attrib
,
4693 struct target_ops
*target
)
4698 res
= remote_write_bytes (mem_addr
, buffer
, mem_len
);
4700 res
= remote_read_bytes (mem_addr
, buffer
, mem_len
);
4705 /* Sends a packet with content determined by the printf format string
4706 FORMAT and the remaining arguments, then gets the reply. Returns
4707 whether the packet was a success, a failure, or unknown. */
4710 remote_send_printf (const char *format
, ...)
4712 struct remote_state
*rs
= get_remote_state ();
4713 int max_size
= get_remote_packet_size ();
4716 va_start (ap
, format
);
4719 if (vsnprintf (rs
->buf
, max_size
, format
, ap
) >= max_size
)
4720 internal_error (__FILE__
, __LINE__
, "Too long remote packet.");
4722 if (putpkt (rs
->buf
) < 0)
4723 error (_("Communication problem with target."));
4726 getpkt (&rs
->buf
, &rs
->buf_size
, 0);
4728 return packet_check_result (rs
->buf
);
4732 restore_remote_timeout (void *p
)
4734 int value
= *(int *)p
;
4735 remote_timeout
= value
;
4738 /* Flash writing can take quite some time. We'll set
4739 effectively infinite timeout for flash operations.
4740 In future, we'll need to decide on a better approach. */
4741 static const int remote_flash_timeout
= 1000;
4744 remote_flash_erase (struct target_ops
*ops
,
4745 ULONGEST address
, LONGEST length
)
4747 int saved_remote_timeout
= remote_timeout
;
4748 enum packet_result ret
;
4750 struct cleanup
*back_to
= make_cleanup (restore_remote_timeout
,
4751 &saved_remote_timeout
);
4752 remote_timeout
= remote_flash_timeout
;
4754 ret
= remote_send_printf ("vFlashErase:%s,%s",
4759 case PACKET_UNKNOWN
:
4760 error (_("Remote target does not support flash erase"));
4762 error (_("Error erasing flash with vFlashErase packet"));
4767 do_cleanups (back_to
);
4771 remote_flash_write (struct target_ops
*ops
,
4772 ULONGEST address
, LONGEST length
,
4773 const gdb_byte
*data
)
4775 int saved_remote_timeout
= remote_timeout
;
4777 struct cleanup
*back_to
= make_cleanup (restore_remote_timeout
,
4778 &saved_remote_timeout
);
4780 remote_timeout
= remote_flash_timeout
;
4781 ret
= remote_write_bytes_aux ("vFlashWrite:", address
, data
, length
, 'X', 0);
4782 do_cleanups (back_to
);
4788 remote_flash_done (struct target_ops
*ops
)
4790 int saved_remote_timeout
= remote_timeout
;
4792 struct cleanup
*back_to
= make_cleanup (restore_remote_timeout
,
4793 &saved_remote_timeout
);
4795 remote_timeout
= remote_flash_timeout
;
4796 ret
= remote_send_printf ("vFlashDone");
4797 do_cleanups (back_to
);
4801 case PACKET_UNKNOWN
:
4802 error (_("Remote target does not support vFlashDone"));
4804 error (_("Error finishing flash operation"));
4811 remote_files_info (struct target_ops
*ignore
)
4813 puts_filtered ("Debugging a target over a serial line.\n");
4816 /* Stuff for dealing with the packets which are part of this protocol.
4817 See comment at top of file for details. */
4819 /* Read a single character from the remote end. */
4822 readchar (int timeout
)
4826 ch
= serial_readchar (remote_desc
, timeout
);
4831 switch ((enum serial_rc
) ch
)
4834 target_mourn_inferior ();
4835 error (_("Remote connection closed"));
4838 perror_with_name (_("Remote communication error"));
4840 case SERIAL_TIMEOUT
:
4846 /* Send the command in *BUF to the remote machine, and read the reply
4847 into *BUF. Report an error if we get an error reply. Resize
4848 *BUF using xrealloc if necessary to hold the result, and update
4852 remote_send (char **buf
,
4856 getpkt (buf
, sizeof_buf
, 0);
4858 if ((*buf
)[0] == 'E')
4859 error (_("Remote failure reply: %s"), *buf
);
4862 /* Display a null-terminated packet on stdout, for debugging, using C
4866 print_packet (char *buf
)
4868 puts_filtered ("\"");
4869 fputstr_filtered (buf
, '"', gdb_stdout
);
4870 puts_filtered ("\"");
4876 return putpkt_binary (buf
, strlen (buf
));
4879 /* Send a packet to the remote machine, with error checking. The data
4880 of the packet is in BUF. The string in BUF can be at most
4881 get_remote_packet_size () - 5 to account for the $, # and checksum,
4882 and for a possible /0 if we are debugging (remote_debug) and want
4883 to print the sent packet as a string. */
4886 putpkt_binary (char *buf
, int cnt
)
4888 struct remote_state
*rs
= get_remote_state ();
4890 unsigned char csum
= 0;
4891 char *buf2
= alloca (cnt
+ 6);
4897 /* We're sending out a new packet. Make sure we don't look at a
4898 stale cached response. */
4899 rs
->cached_wait_status
= 0;
4901 /* Copy the packet into buffer BUF2, encapsulating it
4902 and giving it a checksum. */
4907 for (i
= 0; i
< cnt
; i
++)
4913 *p
++ = tohex ((csum
>> 4) & 0xf);
4914 *p
++ = tohex (csum
& 0xf);
4916 /* Send it over and over until we get a positive ack. */
4920 int started_error_output
= 0;
4925 fprintf_unfiltered (gdb_stdlog
, "Sending packet: ");
4926 fputstrn_unfiltered (buf2
, p
- buf2
, 0, gdb_stdlog
);
4927 fprintf_unfiltered (gdb_stdlog
, "...");
4928 gdb_flush (gdb_stdlog
);
4930 if (serial_write (remote_desc
, buf2
, p
- buf2
))
4931 perror_with_name (_("putpkt: write failed"));
4933 /* Read until either a timeout occurs (-2) or '+' is read. */
4936 ch
= readchar (remote_timeout
);
4944 case SERIAL_TIMEOUT
:
4946 if (started_error_output
)
4948 putchar_unfiltered ('\n');
4949 started_error_output
= 0;
4958 fprintf_unfiltered (gdb_stdlog
, "Ack\n");
4962 fprintf_unfiltered (gdb_stdlog
, "Nak\n");
4963 case SERIAL_TIMEOUT
:
4967 break; /* Retransmit buffer. */
4971 fprintf_unfiltered (gdb_stdlog
,
4972 "Packet instead of Ack, ignoring it\n");
4973 /* It's probably an old response sent because an ACK
4974 was lost. Gobble up the packet and ack it so it
4975 doesn't get retransmitted when we resend this
4978 serial_write (remote_desc
, "+", 1);
4979 continue; /* Now, go look for +. */
4984 if (!started_error_output
)
4986 started_error_output
= 1;
4987 fprintf_unfiltered (gdb_stdlog
, "putpkt: Junk: ");
4989 fputc_unfiltered (ch
& 0177, gdb_stdlog
);
4993 break; /* Here to retransmit. */
4997 /* This is wrong. If doing a long backtrace, the user should be
4998 able to get out next time we call QUIT, without anything as
4999 violent as interrupt_query. If we want to provide a way out of
5000 here without getting to the next QUIT, it should be based on
5001 hitting ^C twice as in remote_wait. */
5011 /* Come here after finding the start of a frame when we expected an
5012 ack. Do our best to discard the rest of this packet. */
5021 c
= readchar (remote_timeout
);
5024 case SERIAL_TIMEOUT
:
5025 /* Nothing we can do. */
5028 /* Discard the two bytes of checksum and stop. */
5029 c
= readchar (remote_timeout
);
5031 c
= readchar (remote_timeout
);
5034 case '*': /* Run length encoding. */
5035 /* Discard the repeat count. */
5036 c
= readchar (remote_timeout
);
5041 /* A regular character. */
5047 /* Come here after finding the start of the frame. Collect the rest
5048 into *BUF, verifying the checksum, length, and handling run-length
5049 compression. NUL terminate the buffer. If there is not enough room,
5050 expand *BUF using xrealloc.
5052 Returns -1 on error, number of characters in buffer (ignoring the
5053 trailing NULL) on success. (could be extended to return one of the
5054 SERIAL status indications). */
5057 read_frame (char **buf_p
,
5070 c
= readchar (remote_timeout
);
5073 case SERIAL_TIMEOUT
:
5075 fputs_filtered ("Timeout in mid-packet, retrying\n", gdb_stdlog
);
5079 fputs_filtered ("Saw new packet start in middle of old one\n",
5081 return -1; /* Start a new packet, count retries. */
5084 unsigned char pktcsum
;
5090 check_0
= readchar (remote_timeout
);
5092 check_1
= readchar (remote_timeout
);
5094 if (check_0
== SERIAL_TIMEOUT
|| check_1
== SERIAL_TIMEOUT
)
5097 fputs_filtered ("Timeout in checksum, retrying\n",
5101 else if (check_0
< 0 || check_1
< 0)
5104 fputs_filtered ("Communication error in checksum\n",
5109 pktcsum
= (fromhex (check_0
) << 4) | fromhex (check_1
);
5110 if (csum
== pktcsum
)
5115 fprintf_filtered (gdb_stdlog
,
5116 "Bad checksum, sentsum=0x%x, csum=0x%x, buf=",
5118 fputstrn_filtered (buf
, bc
, 0, gdb_stdlog
);
5119 fputs_filtered ("\n", gdb_stdlog
);
5121 /* Number of characters in buffer ignoring trailing
5125 case '*': /* Run length encoding. */
5130 c
= readchar (remote_timeout
);
5132 repeat
= c
- ' ' + 3; /* Compute repeat count. */
5134 /* The character before ``*'' is repeated. */
5136 if (repeat
> 0 && repeat
<= 255 && bc
> 0)
5138 if (bc
+ repeat
- 1 >= *sizeof_buf
- 1)
5140 /* Make some more room in the buffer. */
5141 *sizeof_buf
+= repeat
;
5142 *buf_p
= xrealloc (*buf_p
, *sizeof_buf
);
5146 memset (&buf
[bc
], buf
[bc
- 1], repeat
);
5152 printf_filtered (_("Invalid run length encoding: %s\n"), buf
);
5156 if (bc
>= *sizeof_buf
- 1)
5158 /* Make some more room in the buffer. */
5160 *buf_p
= xrealloc (*buf_p
, *sizeof_buf
);
5171 /* Read a packet from the remote machine, with error checking, and
5172 store it in *BUF. Resize *BUF using xrealloc if necessary to hold
5173 the result, and update *SIZEOF_BUF. If FOREVER, wait forever
5174 rather than timing out; this is used (in synchronous mode) to wait
5175 for a target that is is executing user code to stop. */
5176 /* FIXME: ezannoni 2000-02-01 this wrapper is necessary so that we
5177 don't have to change all the calls to getpkt to deal with the
5178 return value, because at the moment I don't know what the right
5179 thing to do it for those. */
5187 timed_out
= getpkt_sane (buf
, sizeof_buf
, forever
);
5191 /* Read a packet from the remote machine, with error checking, and
5192 store it in *BUF. Resize *BUF using xrealloc if necessary to hold
5193 the result, and update *SIZEOF_BUF. If FOREVER, wait forever
5194 rather than timing out; this is used (in synchronous mode) to wait
5195 for a target that is is executing user code to stop. If FOREVER ==
5196 0, this function is allowed to time out gracefully and return an
5197 indication of this to the caller. Otherwise return the number
5200 getpkt_sane (char **buf
, long *sizeof_buf
, int forever
)
5202 struct remote_state
*rs
= get_remote_state ();
5208 /* We're reading a new response. Make sure we don't look at a
5209 previously cached response. */
5210 rs
->cached_wait_status
= 0;
5212 strcpy (*buf
, "timeout");
5216 timeout
= watchdog
> 0 ? watchdog
: -1;
5220 timeout
= remote_timeout
;
5224 for (tries
= 1; tries
<= MAX_TRIES
; tries
++)
5226 /* This can loop forever if the remote side sends us characters
5227 continuously, but if it pauses, we'll get a zero from
5228 readchar because of timeout. Then we'll count that as a
5231 /* Note that we will only wait forever prior to the start of a
5232 packet. After that, we expect characters to arrive at a
5233 brisk pace. They should show up within remote_timeout
5238 c
= readchar (timeout
);
5240 if (c
== SERIAL_TIMEOUT
)
5242 if (forever
) /* Watchdog went off? Kill the target. */
5245 target_mourn_inferior ();
5246 error (_("Watchdog timeout has expired. Target detached."));
5249 fputs_filtered ("Timed out.\n", gdb_stdlog
);
5255 /* We've found the start of a packet, now collect the data. */
5257 val
= read_frame (buf
, sizeof_buf
);
5263 fprintf_unfiltered (gdb_stdlog
, "Packet received: ");
5264 fputstrn_unfiltered (*buf
, val
, 0, gdb_stdlog
);
5265 fprintf_unfiltered (gdb_stdlog
, "\n");
5267 serial_write (remote_desc
, "+", 1);
5271 /* Try the whole thing again. */
5273 serial_write (remote_desc
, "-", 1);
5276 /* We have tried hard enough, and just can't receive the packet.
5279 printf_unfiltered (_("Ignoring packet error, continuing...\n"));
5280 serial_write (remote_desc
, "+", 1);
5287 /* For some mysterious reason, wait_for_inferior calls kill instead of
5288 mourn after it gets TARGET_WAITKIND_SIGNALLED. Work around it. */
5292 target_mourn_inferior ();
5296 /* Use catch_errors so the user can quit from gdb even when we aren't on
5297 speaking terms with the remote system. */
5298 catch_errors ((catch_errors_ftype
*) putpkt
, "k", "", RETURN_MASK_ERROR
);
5300 /* Don't wait for it to die. I'm not really sure it matters whether
5301 we do or not. For the existing stubs, kill is a noop. */
5302 target_mourn_inferior ();
5305 /* Async version of remote_kill. */
5307 remote_async_kill (void)
5309 /* Unregister the file descriptor from the event loop. */
5310 if (target_is_async_p ())
5311 serial_async (remote_desc
, NULL
, 0);
5313 /* For some mysterious reason, wait_for_inferior calls kill instead of
5314 mourn after it gets TARGET_WAITKIND_SIGNALLED. Work around it. */
5318 target_mourn_inferior ();
5322 /* Use catch_errors so the user can quit from gdb even when we
5323 aren't on speaking terms with the remote system. */
5324 catch_errors ((catch_errors_ftype
*) putpkt
, "k", "", RETURN_MASK_ERROR
);
5326 /* Don't wait for it to die. I'm not really sure it matters whether
5327 we do or not. For the existing stubs, kill is a noop. */
5328 target_mourn_inferior ();
5334 remote_mourn_1 (&remote_ops
);
5338 remote_async_mourn (void)
5340 remote_mourn_1 (&remote_async_ops
);
5343 /* Worker function for remote_mourn. */
5345 remote_mourn_1 (struct target_ops
*target
)
5347 unpush_target (target
);
5348 generic_mourn_inferior ();
5352 extended_remote_mourn_1 (struct target_ops
*target
)
5354 struct remote_state
*rs
= get_remote_state ();
5356 /* Unlike "target remote", we do not want to unpush the target; then
5357 the next time the user says "run", we won't be connected. */
5359 /* Call common code to mark the inferior as not running. */
5360 generic_mourn_inferior ();
5362 /* Check whether the target is running now - some remote stubs
5363 automatically restart after kill. */
5365 getpkt (&rs
->buf
, &rs
->buf_size
, 0);
5367 if (rs
->buf
[0] == 'S' || rs
->buf
[0] == 'T')
5369 /* Assume that the target has been restarted. Set inferior_ptid
5370 so that bits of core GDB realizes there's something here, e.g.,
5371 so that the user can say "kill" again. */
5372 inferior_ptid
= pid_to_ptid (MAGIC_NULL_PID
);
5376 /* Mark this (still pushed) target as not executable until we
5378 target_mark_exited (target
);
5383 extended_remote_mourn (void)
5385 extended_remote_mourn_1 (&extended_remote_ops
);
5389 extended_async_remote_mourn (void)
5391 extended_remote_mourn_1 (&extended_async_remote_ops
);
5395 extended_remote_run (char *args
)
5397 struct remote_state
*rs
= get_remote_state ();
5401 /* If the user has disabled vRun support, or we have detected that
5402 support is not available, do not try it. */
5403 if (remote_protocol_packets
[PACKET_vRun
].support
== PACKET_DISABLE
)
5406 strcpy (rs
->buf
, "vRun;");
5407 len
= strlen (rs
->buf
);
5409 if (strlen (remote_exec_file
) * 2 + len
>= get_remote_packet_size ())
5410 error (_("Remote file name too long for run packet"));
5411 len
+= 2 * bin2hex ((gdb_byte
*) remote_exec_file
, rs
->buf
+ len
, 0);
5415 struct cleanup
*back_to
;
5419 argv
= buildargv (args
);
5420 back_to
= make_cleanup ((void (*) (void *)) freeargv
, argv
);
5421 for (i
= 0; argv
[i
] != NULL
; i
++)
5423 if (strlen (argv
[i
]) * 2 + 1 + len
>= get_remote_packet_size ())
5424 error (_("Argument list too long for run packet"));
5425 rs
->buf
[len
++] = ';';
5426 len
+= 2 * bin2hex ((gdb_byte
*) argv
[i
], rs
->buf
+ len
, 0);
5428 do_cleanups (back_to
);
5431 rs
->buf
[len
++] = '\0';
5434 getpkt (&rs
->buf
, &rs
->buf_size
, 0);
5436 if (packet_ok (rs
->buf
, &remote_protocol_packets
[PACKET_vRun
]) == PACKET_OK
)
5438 /* We have a wait response; we don't need it, though. All is well. */
5441 else if (remote_protocol_packets
[PACKET_vRun
].support
== PACKET_DISABLE
)
5442 /* It wasn't disabled before, but it is now. */
5446 if (remote_exec_file
[0] == '\0')
5447 error (_("Running the default executable on the remote target failed; "
5448 "try \"set remote exec-file\"?"));
5450 error (_("Running \"%s\" on the remote target failed"),
5455 /* In the extended protocol we want to be able to do things like
5456 "run" and have them basically work as expected. So we need
5457 a special create_inferior function. We support changing the
5458 executable file and the command line arguments, but not the
5462 extended_remote_create_inferior_1 (char *exec_file
, char *args
,
5463 char **env
, int from_tty
,
5466 /* If running asynchronously, register the target file descriptor
5467 with the event loop. */
5468 if (async_p
&& target_can_async_p ())
5469 target_async (inferior_event_handler
, 0);
5471 /* Now restart the remote server. */
5472 if (extended_remote_run (args
) == -1)
5474 /* vRun was not supported. Fail if we need it to do what the
5476 if (remote_exec_file
[0])
5477 error (_("Remote target does not support \"set remote exec-file\""));
5479 error (_("Remote target does not support \"set args\" or run <ARGS>"));
5481 /* Fall back to "R". */
5482 extended_remote_restart ();
5485 /* Now mark the inferior as running before we do anything else. */
5487 inferior_ptid
= pid_to_ptid (MAGIC_NULL_PID
);
5489 target_mark_running (&extended_async_remote_ops
);
5491 target_mark_running (&extended_remote_ops
);
5493 /* Get updated offsets, if the stub uses qOffsets. */
5496 /* Clean up from the last time we were running. */
5497 init_thread_list ();
5498 init_wait_for_inferior ();
5502 extended_remote_create_inferior (char *exec_file
, char *args
,
5503 char **env
, int from_tty
)
5505 extended_remote_create_inferior_1 (exec_file
, args
, env
, from_tty
, 0);
5509 extended_remote_async_create_inferior (char *exec_file
, char *args
,
5510 char **env
, int from_tty
)
5512 extended_remote_create_inferior_1 (exec_file
, args
, env
, from_tty
, 1);
5516 /* Insert a breakpoint. On targets that have software breakpoint
5517 support, we ask the remote target to do the work; on targets
5518 which don't, we insert a traditional memory breakpoint. */
5521 remote_insert_breakpoint (struct bp_target_info
*bp_tgt
)
5523 CORE_ADDR addr
= bp_tgt
->placed_address
;
5524 struct remote_state
*rs
= get_remote_state ();
5526 /* Try the "Z" s/w breakpoint packet if it is not already disabled.
5527 If it succeeds, then set the support to PACKET_ENABLE. If it
5528 fails, and the user has explicitly requested the Z support then
5529 report an error, otherwise, mark it disabled and go on. */
5531 if (remote_protocol_packets
[PACKET_Z0
].support
!= PACKET_DISABLE
)
5538 gdbarch_breakpoint_from_pc
5539 (current_gdbarch
, &bp_tgt
->placed_address
, &bp_tgt
->placed_size
);
5540 addr
= (ULONGEST
) remote_address_masked (bp_tgt
->placed_address
);
5541 p
+= hexnumstr (p
, addr
);
5542 sprintf (p
, ",%d", bp_tgt
->placed_size
);
5545 getpkt (&rs
->buf
, &rs
->buf_size
, 0);
5547 switch (packet_ok (rs
->buf
, &remote_protocol_packets
[PACKET_Z0
]))
5553 case PACKET_UNKNOWN
:
5558 return memory_insert_breakpoint (bp_tgt
);
5562 remote_remove_breakpoint (struct bp_target_info
*bp_tgt
)
5564 CORE_ADDR addr
= bp_tgt
->placed_address
;
5565 struct remote_state
*rs
= get_remote_state ();
5568 if (remote_protocol_packets
[PACKET_Z0
].support
!= PACKET_DISABLE
)
5576 addr
= (ULONGEST
) remote_address_masked (bp_tgt
->placed_address
);
5577 p
+= hexnumstr (p
, addr
);
5578 sprintf (p
, ",%d", bp_tgt
->placed_size
);
5581 getpkt (&rs
->buf
, &rs
->buf_size
, 0);
5583 return (rs
->buf
[0] == 'E');
5586 return memory_remove_breakpoint (bp_tgt
);
5590 watchpoint_to_Z_packet (int type
)
5595 return Z_PACKET_WRITE_WP
;
5598 return Z_PACKET_READ_WP
;
5601 return Z_PACKET_ACCESS_WP
;
5604 internal_error (__FILE__
, __LINE__
,
5605 _("hw_bp_to_z: bad watchpoint type %d"), type
);
5610 remote_insert_watchpoint (CORE_ADDR addr
, int len
, int type
)
5612 struct remote_state
*rs
= get_remote_state ();
5614 enum Z_packet_type packet
= watchpoint_to_Z_packet (type
);
5616 if (remote_protocol_packets
[PACKET_Z0
+ packet
].support
== PACKET_DISABLE
)
5619 sprintf (rs
->buf
, "Z%x,", packet
);
5620 p
= strchr (rs
->buf
, '\0');
5621 addr
= remote_address_masked (addr
);
5622 p
+= hexnumstr (p
, (ULONGEST
) addr
);
5623 sprintf (p
, ",%x", len
);
5626 getpkt (&rs
->buf
, &rs
->buf_size
, 0);
5628 switch (packet_ok (rs
->buf
, &remote_protocol_packets
[PACKET_Z0
+ packet
]))
5631 case PACKET_UNKNOWN
:
5636 internal_error (__FILE__
, __LINE__
,
5637 _("remote_insert_watchpoint: reached end of function"));
5642 remote_remove_watchpoint (CORE_ADDR addr
, int len
, int type
)
5644 struct remote_state
*rs
= get_remote_state ();
5646 enum Z_packet_type packet
= watchpoint_to_Z_packet (type
);
5648 if (remote_protocol_packets
[PACKET_Z0
+ packet
].support
== PACKET_DISABLE
)
5651 sprintf (rs
->buf
, "z%x,", packet
);
5652 p
= strchr (rs
->buf
, '\0');
5653 addr
= remote_address_masked (addr
);
5654 p
+= hexnumstr (p
, (ULONGEST
) addr
);
5655 sprintf (p
, ",%x", len
);
5657 getpkt (&rs
->buf
, &rs
->buf_size
, 0);
5659 switch (packet_ok (rs
->buf
, &remote_protocol_packets
[PACKET_Z0
+ packet
]))
5662 case PACKET_UNKNOWN
:
5667 internal_error (__FILE__
, __LINE__
,
5668 _("remote_remove_watchpoint: reached end of function"));
5672 int remote_hw_watchpoint_limit
= -1;
5673 int remote_hw_breakpoint_limit
= -1;
5676 remote_check_watch_resources (int type
, int cnt
, int ot
)
5678 if (type
== bp_hardware_breakpoint
)
5680 if (remote_hw_breakpoint_limit
== 0)
5682 else if (remote_hw_breakpoint_limit
< 0)
5684 else if (cnt
<= remote_hw_breakpoint_limit
)
5689 if (remote_hw_watchpoint_limit
== 0)
5691 else if (remote_hw_watchpoint_limit
< 0)
5695 else if (cnt
<= remote_hw_watchpoint_limit
)
5702 remote_stopped_by_watchpoint (void)
5704 return remote_stopped_by_watchpoint_p
;
5708 remote_stopped_data_address (struct target_ops
*target
, CORE_ADDR
*addr_p
)
5711 if (remote_stopped_by_watchpoint ())
5713 *addr_p
= remote_watch_data_address
;
5722 remote_insert_hw_breakpoint (struct bp_target_info
*bp_tgt
)
5725 struct remote_state
*rs
= get_remote_state ();
5728 /* The length field should be set to the size of a breakpoint
5729 instruction, even though we aren't inserting one ourselves. */
5731 gdbarch_breakpoint_from_pc
5732 (current_gdbarch
, &bp_tgt
->placed_address
, &bp_tgt
->placed_size
);
5734 if (remote_protocol_packets
[PACKET_Z1
].support
== PACKET_DISABLE
)
5741 addr
= remote_address_masked (bp_tgt
->placed_address
);
5742 p
+= hexnumstr (p
, (ULONGEST
) addr
);
5743 sprintf (p
, ",%x", bp_tgt
->placed_size
);
5746 getpkt (&rs
->buf
, &rs
->buf_size
, 0);
5748 switch (packet_ok (rs
->buf
, &remote_protocol_packets
[PACKET_Z1
]))
5751 case PACKET_UNKNOWN
:
5756 internal_error (__FILE__
, __LINE__
,
5757 _("remote_insert_hw_breakpoint: reached end of function"));
5762 remote_remove_hw_breakpoint (struct bp_target_info
*bp_tgt
)
5765 struct remote_state
*rs
= get_remote_state ();
5768 if (remote_protocol_packets
[PACKET_Z1
].support
== PACKET_DISABLE
)
5775 addr
= remote_address_masked (bp_tgt
->placed_address
);
5776 p
+= hexnumstr (p
, (ULONGEST
) addr
);
5777 sprintf (p
, ",%x", bp_tgt
->placed_size
);
5780 getpkt (&rs
->buf
, &rs
->buf_size
, 0);
5782 switch (packet_ok (rs
->buf
, &remote_protocol_packets
[PACKET_Z1
]))
5785 case PACKET_UNKNOWN
:
5790 internal_error (__FILE__
, __LINE__
,
5791 _("remote_remove_hw_breakpoint: reached end of function"));
5794 /* Some targets are only capable of doing downloads, and afterwards
5795 they switch to the remote serial protocol. This function provides
5796 a clean way to get from the download target to the remote target.
5797 It's basically just a wrapper so that we don't have to expose any
5798 of the internal workings of remote.c.
5800 Prior to calling this routine, you should shutdown the current
5801 target code, else you will get the "A program is being debugged
5802 already..." message. Usually a call to pop_target() suffices. */
5805 push_remote_target (char *name
, int from_tty
)
5807 printf_filtered (_("Switching to remote protocol\n"));
5808 remote_open (name
, from_tty
);
5811 /* Table used by the crc32 function to calcuate the checksum. */
5813 static unsigned long crc32_table
[256] =
5816 static unsigned long
5817 crc32 (unsigned char *buf
, int len
, unsigned int crc
)
5819 if (!crc32_table
[1])
5821 /* Initialize the CRC table and the decoding table. */
5825 for (i
= 0; i
< 256; i
++)
5827 for (c
= i
<< 24, j
= 8; j
> 0; --j
)
5828 c
= c
& 0x80000000 ? (c
<< 1) ^ 0x04c11db7 : (c
<< 1);
5835 crc
= (crc
<< 8) ^ crc32_table
[((crc
>> 24) ^ *buf
) & 255];
5841 /* compare-sections command
5843 With no arguments, compares each loadable section in the exec bfd
5844 with the same memory range on the target, and reports mismatches.
5845 Useful for verifying the image on the target against the exec file.
5846 Depends on the target understanding the new "qCRC:" request. */
5848 /* FIXME: cagney/1999-10-26: This command should be broken down into a
5849 target method (target verify memory) and generic version of the
5850 actual command. This will allow other high-level code (especially
5851 generic_load()) to make use of this target functionality. */
5854 compare_sections_command (char *args
, int from_tty
)
5856 struct remote_state
*rs
= get_remote_state ();
5858 unsigned long host_crc
, target_crc
;
5859 extern bfd
*exec_bfd
;
5860 struct cleanup
*old_chain
;
5863 const char *sectname
;
5870 error (_("command cannot be used without an exec file"));
5871 if (!current_target
.to_shortname
||
5872 strcmp (current_target
.to_shortname
, "remote") != 0)
5873 error (_("command can only be used with remote target"));
5875 for (s
= exec_bfd
->sections
; s
; s
= s
->next
)
5877 if (!(s
->flags
& SEC_LOAD
))
5878 continue; /* skip non-loadable section */
5880 size
= bfd_get_section_size (s
);
5882 continue; /* skip zero-length section */
5884 sectname
= bfd_get_section_name (exec_bfd
, s
);
5885 if (args
&& strcmp (args
, sectname
) != 0)
5886 continue; /* not the section selected by user */
5888 matched
= 1; /* do this section */
5890 /* FIXME: assumes lma can fit into long. */
5891 xsnprintf (rs
->buf
, get_remote_packet_size (), "qCRC:%lx,%lx",
5892 (long) lma
, (long) size
);
5895 /* Be clever; compute the host_crc before waiting for target
5897 sectdata
= xmalloc (size
);
5898 old_chain
= make_cleanup (xfree
, sectdata
);
5899 bfd_get_section_contents (exec_bfd
, s
, sectdata
, 0, size
);
5900 host_crc
= crc32 ((unsigned char *) sectdata
, size
, 0xffffffff);
5902 getpkt (&rs
->buf
, &rs
->buf_size
, 0);
5903 if (rs
->buf
[0] == 'E')
5904 error (_("target memory fault, section %s, range 0x%s -- 0x%s"),
5905 sectname
, paddr (lma
), paddr (lma
+ size
));
5906 if (rs
->buf
[0] != 'C')
5907 error (_("remote target does not support this operation"));
5909 for (target_crc
= 0, tmp
= &rs
->buf
[1]; *tmp
; tmp
++)
5910 target_crc
= target_crc
* 16 + fromhex (*tmp
);
5912 printf_filtered ("Section %s, range 0x%s -- 0x%s: ",
5913 sectname
, paddr (lma
), paddr (lma
+ size
));
5914 if (host_crc
== target_crc
)
5915 printf_filtered ("matched.\n");
5918 printf_filtered ("MIS-MATCHED!\n");
5922 do_cleanups (old_chain
);
5925 warning (_("One or more sections of the remote executable does not match\n\
5926 the loaded file\n"));
5927 if (args
&& !matched
)
5928 printf_filtered (_("No loaded section named '%s'.\n"), args
);
5931 /* Write LEN bytes from WRITEBUF into OBJECT_NAME/ANNEX at OFFSET
5932 into remote target. The number of bytes written to the remote
5933 target is returned, or -1 for error. */
5936 remote_write_qxfer (struct target_ops
*ops
, const char *object_name
,
5937 const char *annex
, const gdb_byte
*writebuf
,
5938 ULONGEST offset
, LONGEST len
,
5939 struct packet_config
*packet
)
5944 struct remote_state
*rs
= get_remote_state ();
5945 int max_size
= get_memory_write_packet_size ();
5947 if (packet
->support
== PACKET_DISABLE
)
5950 /* Insert header. */
5951 i
= snprintf (rs
->buf
, max_size
,
5952 "qXfer:%s:write:%s:%s:",
5953 object_name
, annex
? annex
: "",
5954 phex_nz (offset
, sizeof offset
));
5955 max_size
-= (i
+ 1);
5957 /* Escape as much data as fits into rs->buf. */
5958 buf_len
= remote_escape_output
5959 (writebuf
, len
, (rs
->buf
+ i
), &max_size
, max_size
);
5961 if (putpkt_binary (rs
->buf
, i
+ buf_len
) < 0
5962 || getpkt_sane (&rs
->buf
, &rs
->buf_size
, 0) < 0
5963 || packet_ok (rs
->buf
, packet
) != PACKET_OK
)
5966 unpack_varlen_hex (rs
->buf
, &n
);
5970 /* Read OBJECT_NAME/ANNEX from the remote target using a qXfer packet.
5971 Data at OFFSET, of up to LEN bytes, is read into READBUF; the
5972 number of bytes read is returned, or 0 for EOF, or -1 for error.
5973 The number of bytes read may be less than LEN without indicating an
5974 EOF. PACKET is checked and updated to indicate whether the remote
5975 target supports this object. */
5978 remote_read_qxfer (struct target_ops
*ops
, const char *object_name
,
5980 gdb_byte
*readbuf
, ULONGEST offset
, LONGEST len
,
5981 struct packet_config
*packet
)
5983 static char *finished_object
;
5984 static char *finished_annex
;
5985 static ULONGEST finished_offset
;
5987 struct remote_state
*rs
= get_remote_state ();
5988 unsigned int total
= 0;
5989 LONGEST i
, n
, packet_len
;
5991 if (packet
->support
== PACKET_DISABLE
)
5994 /* Check whether we've cached an end-of-object packet that matches
5996 if (finished_object
)
5998 if (strcmp (object_name
, finished_object
) == 0
5999 && strcmp (annex
? annex
: "", finished_annex
) == 0
6000 && offset
== finished_offset
)
6003 /* Otherwise, we're now reading something different. Discard
6005 xfree (finished_object
);
6006 xfree (finished_annex
);
6007 finished_object
= NULL
;
6008 finished_annex
= NULL
;
6011 /* Request only enough to fit in a single packet. The actual data
6012 may not, since we don't know how much of it will need to be escaped;
6013 the target is free to respond with slightly less data. We subtract
6014 five to account for the response type and the protocol frame. */
6015 n
= min (get_remote_packet_size () - 5, len
);
6016 snprintf (rs
->buf
, get_remote_packet_size () - 4, "qXfer:%s:read:%s:%s,%s",
6017 object_name
, annex
? annex
: "",
6018 phex_nz (offset
, sizeof offset
),
6019 phex_nz (n
, sizeof n
));
6020 i
= putpkt (rs
->buf
);
6025 packet_len
= getpkt_sane (&rs
->buf
, &rs
->buf_size
, 0);
6026 if (packet_len
< 0 || packet_ok (rs
->buf
, packet
) != PACKET_OK
)
6029 if (rs
->buf
[0] != 'l' && rs
->buf
[0] != 'm')
6030 error (_("Unknown remote qXfer reply: %s"), rs
->buf
);
6032 /* 'm' means there is (or at least might be) more data after this
6033 batch. That does not make sense unless there's at least one byte
6034 of data in this reply. */
6035 if (rs
->buf
[0] == 'm' && packet_len
== 1)
6036 error (_("Remote qXfer reply contained no data."));
6038 /* Got some data. */
6039 i
= remote_unescape_input (rs
->buf
+ 1, packet_len
- 1, readbuf
, n
);
6041 /* 'l' is an EOF marker, possibly including a final block of data,
6042 or possibly empty. If we have the final block of a non-empty
6043 object, record this fact to bypass a subsequent partial read. */
6044 if (rs
->buf
[0] == 'l' && offset
+ i
> 0)
6046 finished_object
= xstrdup (object_name
);
6047 finished_annex
= xstrdup (annex
? annex
: "");
6048 finished_offset
= offset
+ i
;
6055 remote_xfer_partial (struct target_ops
*ops
, enum target_object object
,
6056 const char *annex
, gdb_byte
*readbuf
,
6057 const gdb_byte
*writebuf
, ULONGEST offset
, LONGEST len
)
6059 struct remote_state
*rs
= get_remote_state ();
6064 /* Handle memory using the standard memory routines. */
6065 if (object
== TARGET_OBJECT_MEMORY
)
6070 /* If the remote target is connected but not running, we should
6071 pass this request down to a lower stratum (e.g. the executable
6073 if (!target_has_execution
)
6076 if (writebuf
!= NULL
)
6077 xfered
= remote_write_bytes (offset
, writebuf
, len
);
6079 xfered
= remote_read_bytes (offset
, readbuf
, len
);
6083 else if (xfered
== 0 && errno
== 0)
6089 /* Handle SPU memory using qxfer packets. */
6090 if (object
== TARGET_OBJECT_SPU
)
6093 return remote_read_qxfer (ops
, "spu", annex
, readbuf
, offset
, len
,
6094 &remote_protocol_packets
6095 [PACKET_qXfer_spu_read
]);
6097 return remote_write_qxfer (ops
, "spu", annex
, writebuf
, offset
, len
,
6098 &remote_protocol_packets
6099 [PACKET_qXfer_spu_write
]);
6102 /* Only handle flash writes. */
6103 if (writebuf
!= NULL
)
6109 case TARGET_OBJECT_FLASH
:
6110 xfered
= remote_flash_write (ops
, offset
, len
, writebuf
);
6114 else if (xfered
== 0 && errno
== 0)
6124 /* Map pre-existing objects onto letters. DO NOT do this for new
6125 objects!!! Instead specify new query packets. */
6128 case TARGET_OBJECT_AVR
:
6132 case TARGET_OBJECT_AUXV
:
6133 gdb_assert (annex
== NULL
);
6134 return remote_read_qxfer (ops
, "auxv", annex
, readbuf
, offset
, len
,
6135 &remote_protocol_packets
[PACKET_qXfer_auxv
]);
6137 case TARGET_OBJECT_AVAILABLE_FEATURES
:
6138 return remote_read_qxfer
6139 (ops
, "features", annex
, readbuf
, offset
, len
,
6140 &remote_protocol_packets
[PACKET_qXfer_features
]);
6142 case TARGET_OBJECT_LIBRARIES
:
6143 return remote_read_qxfer
6144 (ops
, "libraries", annex
, readbuf
, offset
, len
,
6145 &remote_protocol_packets
[PACKET_qXfer_libraries
]);
6147 case TARGET_OBJECT_MEMORY_MAP
:
6148 gdb_assert (annex
== NULL
);
6149 return remote_read_qxfer (ops
, "memory-map", annex
, readbuf
, offset
, len
,
6150 &remote_protocol_packets
[PACKET_qXfer_memory_map
]);
6156 /* Note: a zero OFFSET and LEN can be used to query the minimum
6158 if (offset
== 0 && len
== 0)
6159 return (get_remote_packet_size ());
6160 /* Minimum outbuf size is get_remote_packet_size (). If LEN is not
6161 large enough let the caller deal with it. */
6162 if (len
< get_remote_packet_size ())
6164 len
= get_remote_packet_size ();
6166 /* Except for querying the minimum buffer size, target must be open. */
6168 error (_("remote query is only available after target open"));
6170 gdb_assert (annex
!= NULL
);
6171 gdb_assert (readbuf
!= NULL
);
6177 /* We used one buffer char for the remote protocol q command and
6178 another for the query type. As the remote protocol encapsulation
6179 uses 4 chars plus one extra in case we are debugging
6180 (remote_debug), we have PBUFZIZ - 7 left to pack the query
6183 while (annex
[i
] && (i
< (get_remote_packet_size () - 8)))
6185 /* Bad caller may have sent forbidden characters. */
6186 gdb_assert (isprint (annex
[i
]) && annex
[i
] != '$' && annex
[i
] != '#');
6191 gdb_assert (annex
[i
] == '\0');
6193 i
= putpkt (rs
->buf
);
6197 getpkt (&rs
->buf
, &rs
->buf_size
, 0);
6198 strcpy ((char *) readbuf
, rs
->buf
);
6200 return strlen ((char *) readbuf
);
6204 remote_rcmd (char *command
,
6205 struct ui_file
*outbuf
)
6207 struct remote_state
*rs
= get_remote_state ();
6211 error (_("remote rcmd is only available after target open"));
6213 /* Send a NULL command across as an empty command. */
6214 if (command
== NULL
)
6217 /* The query prefix. */
6218 strcpy (rs
->buf
, "qRcmd,");
6219 p
= strchr (rs
->buf
, '\0');
6221 if ((strlen (rs
->buf
) + strlen (command
) * 2 + 8/*misc*/) > get_remote_packet_size ())
6222 error (_("\"monitor\" command ``%s'' is too long."), command
);
6224 /* Encode the actual command. */
6225 bin2hex ((gdb_byte
*) command
, p
, 0);
6227 if (putpkt (rs
->buf
) < 0)
6228 error (_("Communication problem with target."));
6230 /* get/display the response */
6235 /* XXX - see also tracepoint.c:remote_get_noisy_reply(). */
6237 getpkt (&rs
->buf
, &rs
->buf_size
, 0);
6240 error (_("Target does not support this command."));
6241 if (buf
[0] == 'O' && buf
[1] != 'K')
6243 remote_console_output (buf
+ 1); /* 'O' message from stub. */
6246 if (strcmp (buf
, "OK") == 0)
6248 if (strlen (buf
) == 3 && buf
[0] == 'E'
6249 && isdigit (buf
[1]) && isdigit (buf
[2]))
6251 error (_("Protocol error with Rcmd"));
6253 for (p
= buf
; p
[0] != '\0' && p
[1] != '\0'; p
+= 2)
6255 char c
= (fromhex (p
[0]) << 4) + fromhex (p
[1]);
6256 fputc_unfiltered (c
, outbuf
);
6262 static VEC(mem_region_s
) *
6263 remote_memory_map (struct target_ops
*ops
)
6265 VEC(mem_region_s
) *result
= NULL
;
6266 char *text
= target_read_stralloc (¤t_target
,
6267 TARGET_OBJECT_MEMORY_MAP
, NULL
);
6271 struct cleanup
*back_to
= make_cleanup (xfree
, text
);
6272 result
= parse_memory_map (text
);
6273 do_cleanups (back_to
);
6280 packet_command (char *args
, int from_tty
)
6282 struct remote_state
*rs
= get_remote_state ();
6285 error (_("command can only be used with remote target"));
6288 error (_("remote-packet command requires packet text as argument"));
6290 puts_filtered ("sending: ");
6291 print_packet (args
);
6292 puts_filtered ("\n");
6295 getpkt (&rs
->buf
, &rs
->buf_size
, 0);
6296 puts_filtered ("received: ");
6297 print_packet (rs
->buf
);
6298 puts_filtered ("\n");
6302 /* --------- UNIT_TEST for THREAD oriented PACKETS ------------------- */
6304 static void display_thread_info (struct gdb_ext_thread_info
*info
);
6306 static void threadset_test_cmd (char *cmd
, int tty
);
6308 static void threadalive_test (char *cmd
, int tty
);
6310 static void threadlist_test_cmd (char *cmd
, int tty
);
6312 int get_and_display_threadinfo (threadref
*ref
);
6314 static void threadinfo_test_cmd (char *cmd
, int tty
);
6316 static int thread_display_step (threadref
*ref
, void *context
);
6318 static void threadlist_update_test_cmd (char *cmd
, int tty
);
6320 static void init_remote_threadtests (void);
6322 #define SAMPLE_THREAD 0x05060708 /* Truncated 64 bit threadid. */
6325 threadset_test_cmd (char *cmd
, int tty
)
6327 int sample_thread
= SAMPLE_THREAD
;
6329 printf_filtered (_("Remote threadset test\n"));
6330 set_thread (sample_thread
, 1);
6335 threadalive_test (char *cmd
, int tty
)
6337 int sample_thread
= SAMPLE_THREAD
;
6339 if (remote_thread_alive (pid_to_ptid (sample_thread
)))
6340 printf_filtered ("PASS: Thread alive test\n");
6342 printf_filtered ("FAIL: Thread alive test\n");
6345 void output_threadid (char *title
, threadref
*ref
);
6348 output_threadid (char *title
, threadref
*ref
)
6352 pack_threadid (&hexid
[0], ref
); /* Convert threead id into hex. */
6354 printf_filtered ("%s %s\n", title
, (&hexid
[0]));
6358 threadlist_test_cmd (char *cmd
, int tty
)
6361 threadref nextthread
;
6362 int done
, result_count
;
6363 threadref threadlist
[3];
6365 printf_filtered ("Remote Threadlist test\n");
6366 if (!remote_get_threadlist (startflag
, &nextthread
, 3, &done
,
6367 &result_count
, &threadlist
[0]))
6368 printf_filtered ("FAIL: threadlist test\n");
6371 threadref
*scan
= threadlist
;
6372 threadref
*limit
= scan
+ result_count
;
6374 while (scan
< limit
)
6375 output_threadid (" thread ", scan
++);
6380 display_thread_info (struct gdb_ext_thread_info
*info
)
6382 output_threadid ("Threadid: ", &info
->threadid
);
6383 printf_filtered ("Name: %s\n ", info
->shortname
);
6384 printf_filtered ("State: %s\n", info
->display
);
6385 printf_filtered ("other: %s\n\n", info
->more_display
);
6389 get_and_display_threadinfo (threadref
*ref
)
6393 struct gdb_ext_thread_info threadinfo
;
6395 set
= TAG_THREADID
| TAG_EXISTS
| TAG_THREADNAME
6396 | TAG_MOREDISPLAY
| TAG_DISPLAY
;
6397 if (0 != (result
= remote_get_threadinfo (ref
, set
, &threadinfo
)))
6398 display_thread_info (&threadinfo
);
6403 threadinfo_test_cmd (char *cmd
, int tty
)
6405 int athread
= SAMPLE_THREAD
;
6409 int_to_threadref (&thread
, athread
);
6410 printf_filtered ("Remote Threadinfo test\n");
6411 if (!get_and_display_threadinfo (&thread
))
6412 printf_filtered ("FAIL cannot get thread info\n");
6416 thread_display_step (threadref
*ref
, void *context
)
6418 /* output_threadid(" threadstep ",ref); *//* simple test */
6419 return get_and_display_threadinfo (ref
);
6423 threadlist_update_test_cmd (char *cmd
, int tty
)
6425 printf_filtered ("Remote Threadlist update test\n");
6426 remote_threadlist_iterator (thread_display_step
, 0, CRAZY_MAX_THREADS
);
6430 init_remote_threadtests (void)
6432 add_com ("tlist", class_obscure
, threadlist_test_cmd
, _("\
6433 Fetch and print the remote list of thread identifiers, one pkt only"));
6434 add_com ("tinfo", class_obscure
, threadinfo_test_cmd
,
6435 _("Fetch and display info about one thread"));
6436 add_com ("tset", class_obscure
, threadset_test_cmd
,
6437 _("Test setting to a different thread"));
6438 add_com ("tupd", class_obscure
, threadlist_update_test_cmd
,
6439 _("Iterate through updating all remote thread info"));
6440 add_com ("talive", class_obscure
, threadalive_test
,
6441 _(" Remote thread alive test "));
6446 /* Convert a thread ID to a string. Returns the string in a static
6450 remote_pid_to_str (ptid_t ptid
)
6452 static char buf
[32];
6454 xsnprintf (buf
, sizeof buf
, "Thread %d", ptid_get_pid (ptid
));
6458 /* Get the address of the thread local variable in OBJFILE which is
6459 stored at OFFSET within the thread local storage for thread PTID. */
6462 remote_get_thread_local_address (ptid_t ptid
, CORE_ADDR lm
, CORE_ADDR offset
)
6464 if (remote_protocol_packets
[PACKET_qGetTLSAddr
].support
!= PACKET_DISABLE
)
6466 struct remote_state
*rs
= get_remote_state ();
6468 enum packet_result result
;
6470 strcpy (p
, "qGetTLSAddr:");
6472 p
+= hexnumstr (p
, PIDGET (ptid
));
6474 p
+= hexnumstr (p
, offset
);
6476 p
+= hexnumstr (p
, lm
);
6480 getpkt (&rs
->buf
, &rs
->buf_size
, 0);
6481 result
= packet_ok (rs
->buf
, &remote_protocol_packets
[PACKET_qGetTLSAddr
]);
6482 if (result
== PACKET_OK
)
6486 unpack_varlen_hex (rs
->buf
, &result
);
6489 else if (result
== PACKET_UNKNOWN
)
6490 throw_error (TLS_GENERIC_ERROR
,
6491 _("Remote target doesn't support qGetTLSAddr packet"));
6493 throw_error (TLS_GENERIC_ERROR
,
6494 _("Remote target failed to process qGetTLSAddr request"));
6497 throw_error (TLS_GENERIC_ERROR
,
6498 _("TLS not supported or disabled on this target"));
6503 /* Support for inferring a target description based on the current
6504 architecture and the size of a 'g' packet. While the 'g' packet
6505 can have any size (since optional registers can be left off the
6506 end), some sizes are easily recognizable given knowledge of the
6507 approximate architecture. */
6509 struct remote_g_packet_guess
6512 const struct target_desc
*tdesc
;
6514 typedef struct remote_g_packet_guess remote_g_packet_guess_s
;
6515 DEF_VEC_O(remote_g_packet_guess_s
);
6517 struct remote_g_packet_data
6519 VEC(remote_g_packet_guess_s
) *guesses
;
6522 static struct gdbarch_data
*remote_g_packet_data_handle
;
6525 remote_g_packet_data_init (struct obstack
*obstack
)
6527 return OBSTACK_ZALLOC (obstack
, struct remote_g_packet_data
);
6531 register_remote_g_packet_guess (struct gdbarch
*gdbarch
, int bytes
,
6532 const struct target_desc
*tdesc
)
6534 struct remote_g_packet_data
*data
6535 = gdbarch_data (gdbarch
, remote_g_packet_data_handle
);
6536 struct remote_g_packet_guess new_guess
, *guess
;
6539 gdb_assert (tdesc
!= NULL
);
6542 VEC_iterate (remote_g_packet_guess_s
, data
->guesses
, ix
, guess
);
6544 if (guess
->bytes
== bytes
)
6545 internal_error (__FILE__
, __LINE__
,
6546 "Duplicate g packet description added for size %d",
6549 new_guess
.bytes
= bytes
;
6550 new_guess
.tdesc
= tdesc
;
6551 VEC_safe_push (remote_g_packet_guess_s
, data
->guesses
, &new_guess
);
6554 static const struct target_desc
*
6555 remote_read_description (struct target_ops
*target
)
6557 struct remote_g_packet_data
*data
6558 = gdbarch_data (current_gdbarch
, remote_g_packet_data_handle
);
6560 if (!VEC_empty (remote_g_packet_guess_s
, data
->guesses
))
6562 struct remote_g_packet_guess
*guess
;
6564 int bytes
= send_g_packet ();
6567 VEC_iterate (remote_g_packet_guess_s
, data
->guesses
, ix
, guess
);
6569 if (guess
->bytes
== bytes
)
6570 return guess
->tdesc
;
6572 /* We discard the g packet. A minor optimization would be to
6573 hold on to it, and fill the register cache once we have selected
6574 an architecture, but it's too tricky to do safely. */
6580 /* Remote file transfer support. This is host-initiated I/O, not
6581 target-initiated; for target-initiated, see remote-fileio.c. */
6583 /* If *LEFT is at least the length of STRING, copy STRING to
6584 *BUFFER, update *BUFFER to point to the new end of the buffer, and
6585 decrease *LEFT. Otherwise raise an error. */
6588 remote_buffer_add_string (char **buffer
, int *left
, char *string
)
6590 int len
= strlen (string
);
6593 error (_("Packet too long for target."));
6595 memcpy (*buffer
, string
, len
);
6599 /* NUL-terminate the buffer as a convenience, if there is
6605 /* If *LEFT is large enough, hex encode LEN bytes from BYTES into
6606 *BUFFER, update *BUFFER to point to the new end of the buffer, and
6607 decrease *LEFT. Otherwise raise an error. */
6610 remote_buffer_add_bytes (char **buffer
, int *left
, const gdb_byte
*bytes
,
6613 if (2 * len
> *left
)
6614 error (_("Packet too long for target."));
6616 bin2hex (bytes
, *buffer
, len
);
6620 /* NUL-terminate the buffer as a convenience, if there is
6626 /* If *LEFT is large enough, convert VALUE to hex and add it to
6627 *BUFFER, update *BUFFER to point to the new end of the buffer, and
6628 decrease *LEFT. Otherwise raise an error. */
6631 remote_buffer_add_int (char **buffer
, int *left
, ULONGEST value
)
6633 int len
= hexnumlen (value
);
6636 error (_("Packet too long for target."));
6638 hexnumstr (*buffer
, value
);
6642 /* NUL-terminate the buffer as a convenience, if there is
6648 /* Parse an I/O result packet from BUFFER. Set RETCODE to the return
6649 value, *REMOTE_ERRNO to the remote error number or zero if none
6650 was included, and *ATTACHMENT to point to the start of the annex
6651 if any. The length of the packet isn't needed here; there may
6652 be NUL bytes in BUFFER, but they will be after *ATTACHMENT.
6654 Return 0 if the packet could be parsed, -1 if it could not. If
6655 -1 is returned, the other variables may not be initialized. */
6658 remote_hostio_parse_result (char *buffer
, int *retcode
,
6659 int *remote_errno
, char **attachment
)
6666 if (buffer
[0] != 'F')
6670 *retcode
= strtol (&buffer
[1], &p
, 16);
6671 if (errno
!= 0 || p
== &buffer
[1])
6674 /* Check for ",errno". */
6678 *remote_errno
= strtol (p
+ 1, &p2
, 16);
6679 if (errno
!= 0 || p
+ 1 == p2
)
6684 /* Check for ";attachment". If there is no attachment, the
6685 packet should end here. */
6688 *attachment
= p
+ 1;
6691 else if (*p
== '\0')
6697 /* Send a prepared I/O packet to the target and read its response.
6698 The prepared packet is in the global RS->BUF before this function
6699 is called, and the answer is there when we return.
6701 COMMAND_BYTES is the length of the request to send, which may include
6702 binary data. WHICH_PACKET is the packet configuration to check
6703 before attempting a packet. If an error occurs, *REMOTE_ERRNO
6704 is set to the error number and -1 is returned. Otherwise the value
6705 returned by the function is returned.
6707 ATTACHMENT and ATTACHMENT_LEN should be non-NULL if and only if an
6708 attachment is expected; an error will be reported if there's a
6709 mismatch. If one is found, *ATTACHMENT will be set to point into
6710 the packet buffer and *ATTACHMENT_LEN will be set to the
6711 attachment's length. */
6714 remote_hostio_send_command (int command_bytes
, int which_packet
,
6715 int *remote_errno
, char **attachment
,
6716 int *attachment_len
)
6718 struct remote_state
*rs
= get_remote_state ();
6719 int ret
, bytes_read
;
6720 char *attachment_tmp
;
6722 if (remote_protocol_packets
[which_packet
].support
== PACKET_DISABLE
)
6724 *remote_errno
= FILEIO_ENOSYS
;
6728 putpkt_binary (rs
->buf
, command_bytes
);
6729 bytes_read
= getpkt_sane (&rs
->buf
, &rs
->buf_size
, 0);
6731 /* If it timed out, something is wrong. Don't try to parse the
6735 *remote_errno
= FILEIO_EINVAL
;
6739 switch (packet_ok (rs
->buf
, &remote_protocol_packets
[which_packet
]))
6742 *remote_errno
= FILEIO_EINVAL
;
6744 case PACKET_UNKNOWN
:
6745 *remote_errno
= FILEIO_ENOSYS
;
6751 if (remote_hostio_parse_result (rs
->buf
, &ret
, remote_errno
,
6754 *remote_errno
= FILEIO_EINVAL
;
6758 /* Make sure we saw an attachment if and only if we expected one. */
6759 if ((attachment_tmp
== NULL
&& attachment
!= NULL
)
6760 || (attachment_tmp
!= NULL
&& attachment
== NULL
))
6762 *remote_errno
= FILEIO_EINVAL
;
6766 /* If an attachment was found, it must point into the packet buffer;
6767 work out how many bytes there were. */
6768 if (attachment_tmp
!= NULL
)
6770 *attachment
= attachment_tmp
;
6771 *attachment_len
= bytes_read
- (*attachment
- rs
->buf
);
6777 /* Open FILENAME on the remote target, using FLAGS and MODE. Return a
6778 remote file descriptor, or -1 if an error occurs (and set
6782 remote_hostio_open (const char *filename
, int flags
, int mode
,
6785 struct remote_state
*rs
= get_remote_state ();
6787 int left
= get_remote_packet_size () - 1;
6789 remote_buffer_add_string (&p
, &left
, "vFile:open:");
6791 remote_buffer_add_bytes (&p
, &left
, (const gdb_byte
*) filename
,
6793 remote_buffer_add_string (&p
, &left
, ",");
6795 remote_buffer_add_int (&p
, &left
, flags
);
6796 remote_buffer_add_string (&p
, &left
, ",");
6798 remote_buffer_add_int (&p
, &left
, mode
);
6800 return remote_hostio_send_command (p
- rs
->buf
, PACKET_vFile_open
,
6801 remote_errno
, NULL
, NULL
);
6804 /* Write up to LEN bytes from WRITE_BUF to FD on the remote target.
6805 Return the number of bytes written, or -1 if an error occurs (and
6806 set *REMOTE_ERRNO). */
6809 remote_hostio_pwrite (int fd
, const gdb_byte
*write_buf
, int len
,
6810 ULONGEST offset
, int *remote_errno
)
6812 struct remote_state
*rs
= get_remote_state ();
6814 int left
= get_remote_packet_size ();
6817 remote_buffer_add_string (&p
, &left
, "vFile:pwrite:");
6819 remote_buffer_add_int (&p
, &left
, fd
);
6820 remote_buffer_add_string (&p
, &left
, ",");
6822 remote_buffer_add_int (&p
, &left
, offset
);
6823 remote_buffer_add_string (&p
, &left
, ",");
6825 p
+= remote_escape_output (write_buf
, len
, p
, &out_len
,
6826 get_remote_packet_size () - (p
- rs
->buf
));
6828 return remote_hostio_send_command (p
- rs
->buf
, PACKET_vFile_pwrite
,
6829 remote_errno
, NULL
, NULL
);
6832 /* Read up to LEN bytes FD on the remote target into READ_BUF
6833 Return the number of bytes read, or -1 if an error occurs (and
6834 set *REMOTE_ERRNO). */
6837 remote_hostio_pread (int fd
, gdb_byte
*read_buf
, int len
,
6838 ULONGEST offset
, int *remote_errno
)
6840 struct remote_state
*rs
= get_remote_state ();
6843 int left
= get_remote_packet_size ();
6844 int ret
, attachment_len
;
6847 remote_buffer_add_string (&p
, &left
, "vFile:pread:");
6849 remote_buffer_add_int (&p
, &left
, fd
);
6850 remote_buffer_add_string (&p
, &left
, ",");
6852 remote_buffer_add_int (&p
, &left
, len
);
6853 remote_buffer_add_string (&p
, &left
, ",");
6855 remote_buffer_add_int (&p
, &left
, offset
);
6857 ret
= remote_hostio_send_command (p
- rs
->buf
, PACKET_vFile_pread
,
6858 remote_errno
, &attachment
,
6864 read_len
= remote_unescape_input (attachment
, attachment_len
,
6866 if (read_len
!= ret
)
6867 error (_("Read returned %d, but %d bytes."), ret
, (int) read_len
);
6872 /* Close FD on the remote target. Return 0, or -1 if an error occurs
6873 (and set *REMOTE_ERRNO). */
6876 remote_hostio_close (int fd
, int *remote_errno
)
6878 struct remote_state
*rs
= get_remote_state ();
6880 int left
= get_remote_packet_size () - 1;
6882 remote_buffer_add_string (&p
, &left
, "vFile:close:");
6884 remote_buffer_add_int (&p
, &left
, fd
);
6886 return remote_hostio_send_command (p
- rs
->buf
, PACKET_vFile_close
,
6887 remote_errno
, NULL
, NULL
);
6890 /* Unlink FILENAME on the remote target. Return 0, or -1 if an error
6891 occurs (and set *REMOTE_ERRNO). */
6894 remote_hostio_unlink (const char *filename
, int *remote_errno
)
6896 struct remote_state
*rs
= get_remote_state ();
6898 int left
= get_remote_packet_size () - 1;
6900 remote_buffer_add_string (&p
, &left
, "vFile:unlink:");
6902 remote_buffer_add_bytes (&p
, &left
, (const gdb_byte
*) filename
,
6905 return remote_hostio_send_command (p
- rs
->buf
, PACKET_vFile_unlink
,
6906 remote_errno
, NULL
, NULL
);
6910 remote_fileio_errno_to_host (int errnum
)
6934 case FILEIO_ENOTDIR
:
6954 case FILEIO_ENAMETOOLONG
:
6955 return ENAMETOOLONG
;
6961 remote_hostio_error (int errnum
)
6963 int host_error
= remote_fileio_errno_to_host (errnum
);
6965 if (host_error
== -1)
6966 error (_("Unknown remote I/O error %d"), errnum
);
6968 error (_("Remote I/O error: %s"), safe_strerror (host_error
));
6972 fclose_cleanup (void *file
)
6978 remote_hostio_close_cleanup (void *opaque
)
6980 int fd
= *(int *) opaque
;
6983 remote_hostio_close (fd
, &remote_errno
);
6987 remote_file_put (const char *local_file
, const char *remote_file
, int from_tty
)
6989 struct cleanup
*back_to
, *close_cleanup
;
6990 int retcode
, fd
, remote_errno
, bytes
, io_size
;
6993 int bytes_in_buffer
;
6998 error (_("command can only be used with remote target"));
7000 file
= fopen (local_file
, "rb");
7002 perror_with_name (local_file
);
7003 back_to
= make_cleanup (fclose_cleanup
, file
);
7005 fd
= remote_hostio_open (remote_file
, (FILEIO_O_WRONLY
| FILEIO_O_CREAT
7007 0700, &remote_errno
);
7009 remote_hostio_error (remote_errno
);
7011 /* Send up to this many bytes at once. They won't all fit in the
7012 remote packet limit, so we'll transfer slightly fewer. */
7013 io_size
= get_remote_packet_size ();
7014 buffer
= xmalloc (io_size
);
7015 make_cleanup (xfree
, buffer
);
7017 close_cleanup
= make_cleanup (remote_hostio_close_cleanup
, &fd
);
7019 bytes_in_buffer
= 0;
7022 while (bytes_in_buffer
|| !saw_eof
)
7026 bytes
= fread (buffer
+ bytes_in_buffer
, 1, io_size
- bytes_in_buffer
,
7031 error (_("Error reading %s."), local_file
);
7034 /* EOF. Unless there is something still in the
7035 buffer from the last iteration, we are done. */
7037 if (bytes_in_buffer
== 0)
7045 bytes
+= bytes_in_buffer
;
7046 bytes_in_buffer
= 0;
7048 retcode
= remote_hostio_pwrite (fd
, buffer
, bytes
, offset
, &remote_errno
);
7051 remote_hostio_error (remote_errno
);
7052 else if (retcode
== 0)
7053 error (_("Remote write of %d bytes returned 0!"), bytes
);
7054 else if (retcode
< bytes
)
7056 /* Short write. Save the rest of the read data for the next
7058 bytes_in_buffer
= bytes
- retcode
;
7059 memmove (buffer
, buffer
+ retcode
, bytes_in_buffer
);
7065 discard_cleanups (close_cleanup
);
7066 if (remote_hostio_close (fd
, &remote_errno
))
7067 remote_hostio_error (remote_errno
);
7070 printf_filtered (_("Successfully sent file \"%s\".\n"), local_file
);
7071 do_cleanups (back_to
);
7075 remote_file_get (const char *remote_file
, const char *local_file
, int from_tty
)
7077 struct cleanup
*back_to
, *close_cleanup
;
7078 int retcode
, fd
, remote_errno
, bytes
, io_size
;
7084 error (_("command can only be used with remote target"));
7086 fd
= remote_hostio_open (remote_file
, FILEIO_O_RDONLY
, 0, &remote_errno
);
7088 remote_hostio_error (remote_errno
);
7090 file
= fopen (local_file
, "wb");
7092 perror_with_name (local_file
);
7093 back_to
= make_cleanup (fclose_cleanup
, file
);
7095 /* Send up to this many bytes at once. They won't all fit in the
7096 remote packet limit, so we'll transfer slightly fewer. */
7097 io_size
= get_remote_packet_size ();
7098 buffer
= xmalloc (io_size
);
7099 make_cleanup (xfree
, buffer
);
7101 close_cleanup
= make_cleanup (remote_hostio_close_cleanup
, &fd
);
7106 bytes
= remote_hostio_pread (fd
, buffer
, io_size
, offset
, &remote_errno
);
7108 /* Success, but no bytes, means end-of-file. */
7111 remote_hostio_error (remote_errno
);
7115 bytes
= fwrite (buffer
, 1, bytes
, file
);
7117 perror_with_name (local_file
);
7120 discard_cleanups (close_cleanup
);
7121 if (remote_hostio_close (fd
, &remote_errno
))
7122 remote_hostio_error (remote_errno
);
7125 printf_filtered (_("Successfully fetched file \"%s\".\n"), remote_file
);
7126 do_cleanups (back_to
);
7130 remote_file_delete (const char *remote_file
, int from_tty
)
7132 int retcode
, remote_errno
;
7135 error (_("command can only be used with remote target"));
7137 retcode
= remote_hostio_unlink (remote_file
, &remote_errno
);
7139 remote_hostio_error (remote_errno
);
7142 printf_filtered (_("Successfully deleted file \"%s\".\n"), remote_file
);
7146 remote_put_command (char *args
, int from_tty
)
7148 struct cleanup
*back_to
;
7151 argv
= buildargv (args
);
7154 back_to
= make_cleanup_freeargv (argv
);
7155 if (argv
[0] == NULL
|| argv
[1] == NULL
|| argv
[2] != NULL
)
7156 error (_("Invalid parameters to remote put"));
7158 remote_file_put (argv
[0], argv
[1], from_tty
);
7160 do_cleanups (back_to
);
7164 remote_get_command (char *args
, int from_tty
)
7166 struct cleanup
*back_to
;
7169 argv
= buildargv (args
);
7172 back_to
= make_cleanup_freeargv (argv
);
7173 if (argv
[0] == NULL
|| argv
[1] == NULL
|| argv
[2] != NULL
)
7174 error (_("Invalid parameters to remote get"));
7176 remote_file_get (argv
[0], argv
[1], from_tty
);
7178 do_cleanups (back_to
);
7182 remote_delete_command (char *args
, int from_tty
)
7184 struct cleanup
*back_to
;
7187 argv
= buildargv (args
);
7190 back_to
= make_cleanup_freeargv (argv
);
7191 if (argv
[0] == NULL
|| argv
[1] != NULL
)
7192 error (_("Invalid parameters to remote delete"));
7194 remote_file_delete (argv
[0], from_tty
);
7196 do_cleanups (back_to
);
7200 remote_command (char *args
, int from_tty
)
7202 help_list (remote_cmdlist
, "remote ", -1, gdb_stdout
);
7206 init_remote_ops (void)
7208 remote_ops
.to_shortname
= "remote";
7209 remote_ops
.to_longname
= "Remote serial target in gdb-specific protocol";
7211 "Use a remote computer via a serial line, using a gdb-specific protocol.\n\
7212 Specify the serial device it is connected to\n\
7213 (e.g. /dev/ttyS0, /dev/ttya, COM1, etc.).";
7214 remote_ops
.to_open
= remote_open
;
7215 remote_ops
.to_close
= remote_close
;
7216 remote_ops
.to_detach
= remote_detach
;
7217 remote_ops
.to_disconnect
= remote_disconnect
;
7218 remote_ops
.to_resume
= remote_resume
;
7219 remote_ops
.to_wait
= remote_wait
;
7220 remote_ops
.to_fetch_registers
= remote_fetch_registers
;
7221 remote_ops
.to_store_registers
= remote_store_registers
;
7222 remote_ops
.to_prepare_to_store
= remote_prepare_to_store
;
7223 remote_ops
.deprecated_xfer_memory
= remote_xfer_memory
;
7224 remote_ops
.to_files_info
= remote_files_info
;
7225 remote_ops
.to_insert_breakpoint
= remote_insert_breakpoint
;
7226 remote_ops
.to_remove_breakpoint
= remote_remove_breakpoint
;
7227 remote_ops
.to_stopped_by_watchpoint
= remote_stopped_by_watchpoint
;
7228 remote_ops
.to_stopped_data_address
= remote_stopped_data_address
;
7229 remote_ops
.to_can_use_hw_breakpoint
= remote_check_watch_resources
;
7230 remote_ops
.to_insert_hw_breakpoint
= remote_insert_hw_breakpoint
;
7231 remote_ops
.to_remove_hw_breakpoint
= remote_remove_hw_breakpoint
;
7232 remote_ops
.to_insert_watchpoint
= remote_insert_watchpoint
;
7233 remote_ops
.to_remove_watchpoint
= remote_remove_watchpoint
;
7234 remote_ops
.to_kill
= remote_kill
;
7235 remote_ops
.to_load
= generic_load
;
7236 remote_ops
.to_mourn_inferior
= remote_mourn
;
7237 remote_ops
.to_thread_alive
= remote_thread_alive
;
7238 remote_ops
.to_find_new_threads
= remote_threads_info
;
7239 remote_ops
.to_pid_to_str
= remote_pid_to_str
;
7240 remote_ops
.to_extra_thread_info
= remote_threads_extra_info
;
7241 remote_ops
.to_stop
= remote_stop
;
7242 remote_ops
.to_xfer_partial
= remote_xfer_partial
;
7243 remote_ops
.to_rcmd
= remote_rcmd
;
7244 remote_ops
.to_log_command
= serial_log_command
;
7245 remote_ops
.to_get_thread_local_address
= remote_get_thread_local_address
;
7246 remote_ops
.to_stratum
= process_stratum
;
7247 remote_ops
.to_has_all_memory
= 1;
7248 remote_ops
.to_has_memory
= 1;
7249 remote_ops
.to_has_stack
= 1;
7250 remote_ops
.to_has_registers
= 1;
7251 remote_ops
.to_has_execution
= 1;
7252 remote_ops
.to_has_thread_control
= tc_schedlock
; /* can lock scheduler */
7253 remote_ops
.to_magic
= OPS_MAGIC
;
7254 remote_ops
.to_memory_map
= remote_memory_map
;
7255 remote_ops
.to_flash_erase
= remote_flash_erase
;
7256 remote_ops
.to_flash_done
= remote_flash_done
;
7257 remote_ops
.to_read_description
= remote_read_description
;
7260 /* Set up the extended remote vector by making a copy of the standard
7261 remote vector and adding to it. */
7264 init_extended_remote_ops (void)
7266 extended_remote_ops
= remote_ops
;
7268 extended_remote_ops
.to_shortname
= "extended-remote";
7269 extended_remote_ops
.to_longname
=
7270 "Extended remote serial target in gdb-specific protocol";
7271 extended_remote_ops
.to_doc
=
7272 "Use a remote computer via a serial line, using a gdb-specific protocol.\n\
7273 Specify the serial device it is connected to (e.g. /dev/ttya).",
7274 extended_remote_ops
.to_open
= extended_remote_open
;
7275 extended_remote_ops
.to_create_inferior
= extended_remote_create_inferior
;
7276 extended_remote_ops
.to_mourn_inferior
= extended_remote_mourn
;
7277 extended_remote_ops
.to_detach
= extended_remote_detach
;
7278 extended_remote_ops
.to_attach
= extended_remote_attach
;
7282 remote_can_async_p (void)
7284 /* We're async whenever the serial device is. */
7285 return (current_target
.to_async_mask_value
) && serial_can_async_p (remote_desc
);
7289 remote_is_async_p (void)
7291 /* We're async whenever the serial device is. */
7292 return (current_target
.to_async_mask_value
) && serial_is_async_p (remote_desc
);
7295 /* Pass the SERIAL event on and up to the client. One day this code
7296 will be able to delay notifying the client of an event until the
7297 point where an entire packet has been received. */
7299 static void (*async_client_callback
) (enum inferior_event_type event_type
,
7301 static void *async_client_context
;
7302 static serial_event_ftype remote_async_serial_handler
;
7305 remote_async_serial_handler (struct serial
*scb
, void *context
)
7307 /* Don't propogate error information up to the client. Instead let
7308 the client find out about the error by querying the target. */
7309 async_client_callback (INF_REG_EVENT
, async_client_context
);
7313 remote_async (void (*callback
) (enum inferior_event_type event_type
,
7314 void *context
), void *context
)
7316 if (current_target
.to_async_mask_value
== 0)
7317 internal_error (__FILE__
, __LINE__
,
7318 _("Calling remote_async when async is masked"));
7320 if (callback
!= NULL
)
7322 serial_async (remote_desc
, remote_async_serial_handler
, NULL
);
7323 async_client_callback
= callback
;
7324 async_client_context
= context
;
7327 serial_async (remote_desc
, NULL
, NULL
);
7330 /* Target async and target extended-async.
7332 This are temporary targets, until it is all tested. Eventually
7333 async support will be incorporated int the usual 'remote'
7337 init_remote_async_ops (void)
7339 remote_async_ops
.to_shortname
= "async";
7340 remote_async_ops
.to_longname
=
7341 "Remote serial target in async version of the gdb-specific protocol";
7342 remote_async_ops
.to_doc
=
7343 "Use a remote computer via a serial line, using a gdb-specific protocol.\n\
7344 Specify the serial device it is connected to (e.g. /dev/ttya).";
7345 remote_async_ops
.to_open
= remote_async_open
;
7346 remote_async_ops
.to_close
= remote_close
;
7347 remote_async_ops
.to_detach
= remote_detach
;
7348 remote_async_ops
.to_disconnect
= remote_disconnect
;
7349 remote_async_ops
.to_resume
= remote_async_resume
;
7350 remote_async_ops
.to_wait
= remote_async_wait
;
7351 remote_async_ops
.to_fetch_registers
= remote_fetch_registers
;
7352 remote_async_ops
.to_store_registers
= remote_store_registers
;
7353 remote_async_ops
.to_prepare_to_store
= remote_prepare_to_store
;
7354 remote_async_ops
.deprecated_xfer_memory
= remote_xfer_memory
;
7355 remote_async_ops
.to_files_info
= remote_files_info
;
7356 remote_async_ops
.to_insert_breakpoint
= remote_insert_breakpoint
;
7357 remote_async_ops
.to_remove_breakpoint
= remote_remove_breakpoint
;
7358 remote_async_ops
.to_can_use_hw_breakpoint
= remote_check_watch_resources
;
7359 remote_async_ops
.to_insert_hw_breakpoint
= remote_insert_hw_breakpoint
;
7360 remote_async_ops
.to_remove_hw_breakpoint
= remote_remove_hw_breakpoint
;
7361 remote_async_ops
.to_insert_watchpoint
= remote_insert_watchpoint
;
7362 remote_async_ops
.to_remove_watchpoint
= remote_remove_watchpoint
;
7363 remote_async_ops
.to_stopped_by_watchpoint
= remote_stopped_by_watchpoint
;
7364 remote_async_ops
.to_stopped_data_address
= remote_stopped_data_address
;
7365 remote_async_ops
.to_terminal_inferior
= remote_async_terminal_inferior
;
7366 remote_async_ops
.to_terminal_ours
= remote_async_terminal_ours
;
7367 remote_async_ops
.to_kill
= remote_async_kill
;
7368 remote_async_ops
.to_load
= generic_load
;
7369 remote_async_ops
.to_mourn_inferior
= remote_async_mourn
;
7370 remote_async_ops
.to_thread_alive
= remote_thread_alive
;
7371 remote_async_ops
.to_find_new_threads
= remote_threads_info
;
7372 remote_async_ops
.to_pid_to_str
= remote_pid_to_str
;
7373 remote_async_ops
.to_extra_thread_info
= remote_threads_extra_info
;
7374 remote_async_ops
.to_stop
= remote_stop
;
7375 remote_async_ops
.to_xfer_partial
= remote_xfer_partial
;
7376 remote_async_ops
.to_rcmd
= remote_rcmd
;
7377 remote_async_ops
.to_stratum
= process_stratum
;
7378 remote_async_ops
.to_has_all_memory
= 1;
7379 remote_async_ops
.to_has_memory
= 1;
7380 remote_async_ops
.to_has_stack
= 1;
7381 remote_async_ops
.to_has_registers
= 1;
7382 remote_async_ops
.to_has_execution
= 1;
7383 remote_async_ops
.to_has_thread_control
= tc_schedlock
; /* can lock scheduler */
7384 remote_async_ops
.to_can_async_p
= remote_can_async_p
;
7385 remote_async_ops
.to_is_async_p
= remote_is_async_p
;
7386 remote_async_ops
.to_async
= remote_async
;
7387 remote_async_ops
.to_async_mask_value
= 1;
7388 remote_async_ops
.to_magic
= OPS_MAGIC
;
7389 remote_async_ops
.to_memory_map
= remote_memory_map
;
7390 remote_async_ops
.to_flash_erase
= remote_flash_erase
;
7391 remote_async_ops
.to_flash_done
= remote_flash_done
;
7392 remote_async_ops
.to_read_description
= remote_read_description
;
7395 /* Set up the async extended remote vector by making a copy of the standard
7396 remote vector and adding to it. */
7399 init_extended_async_remote_ops (void)
7401 extended_async_remote_ops
= remote_async_ops
;
7403 extended_async_remote_ops
.to_shortname
= "extended-async";
7404 extended_async_remote_ops
.to_longname
=
7405 "Extended remote serial target in async gdb-specific protocol";
7406 extended_async_remote_ops
.to_doc
=
7407 "Use a remote computer via a serial line, using an async gdb-specific protocol.\n\
7408 Specify the serial device it is connected to (e.g. /dev/ttya).",
7409 extended_async_remote_ops
.to_open
= extended_remote_async_open
;
7410 extended_async_remote_ops
.to_create_inferior
= extended_remote_async_create_inferior
;
7411 extended_async_remote_ops
.to_mourn_inferior
= extended_async_remote_mourn
;
7412 extended_async_remote_ops
.to_detach
= extended_remote_detach
;
7413 extended_async_remote_ops
.to_attach
= extended_async_remote_attach
;
7417 set_remote_cmd (char *args
, int from_tty
)
7419 help_list (remote_set_cmdlist
, "set remote ", -1, gdb_stdout
);
7423 show_remote_cmd (char *args
, int from_tty
)
7425 /* We can't just use cmd_show_list here, because we want to skip
7426 the redundant "show remote Z-packet" and the legacy aliases. */
7427 struct cleanup
*showlist_chain
;
7428 struct cmd_list_element
*list
= remote_show_cmdlist
;
7430 showlist_chain
= make_cleanup_ui_out_tuple_begin_end (uiout
, "showlist");
7431 for (; list
!= NULL
; list
= list
->next
)
7432 if (strcmp (list
->name
, "Z-packet") == 0)
7434 else if (list
->type
== not_set_cmd
)
7435 /* Alias commands are exactly like the original, except they
7436 don't have the normal type. */
7440 struct cleanup
*option_chain
7441 = make_cleanup_ui_out_tuple_begin_end (uiout
, "option");
7442 ui_out_field_string (uiout
, "name", list
->name
);
7443 ui_out_text (uiout
, ": ");
7444 if (list
->type
== show_cmd
)
7445 do_setshow_command ((char *) NULL
, from_tty
, list
);
7447 cmd_func (list
, NULL
, from_tty
);
7448 /* Close the tuple. */
7449 do_cleanups (option_chain
);
7452 /* Close the tuple. */
7453 do_cleanups (showlist_chain
);
7457 /* Function to be called whenever a new objfile (shlib) is detected. */
7459 remote_new_objfile (struct objfile
*objfile
)
7461 if (remote_desc
!= 0) /* Have a remote connection. */
7462 remote_check_symbols (objfile
);
7466 _initialize_remote (void)
7468 struct remote_state
*rs
;
7470 /* architecture specific data */
7471 remote_gdbarch_data_handle
=
7472 gdbarch_data_register_post_init (init_remote_state
);
7473 remote_g_packet_data_handle
=
7474 gdbarch_data_register_pre_init (remote_g_packet_data_init
);
7476 /* Initialize the per-target state. At the moment there is only one
7477 of these, not one per target. Only one target is active at a
7478 time. The default buffer size is unimportant; it will be expanded
7479 whenever a larger buffer is needed. */
7480 rs
= get_remote_state_raw ();
7482 rs
->buf
= xmalloc (rs
->buf_size
);
7485 add_target (&remote_ops
);
7487 init_extended_remote_ops ();
7488 add_target (&extended_remote_ops
);
7490 init_remote_async_ops ();
7491 add_target (&remote_async_ops
);
7493 init_extended_async_remote_ops ();
7494 add_target (&extended_async_remote_ops
);
7496 /* Hook into new objfile notification. */
7497 observer_attach_new_objfile (remote_new_objfile
);
7500 init_remote_threadtests ();
7503 /* set/show remote ... */
7505 add_prefix_cmd ("remote", class_maintenance
, set_remote_cmd
, _("\
7506 Remote protocol specific variables\n\
7507 Configure various remote-protocol specific variables such as\n\
7508 the packets being used"),
7509 &remote_set_cmdlist
, "set remote ",
7510 0 /* allow-unknown */, &setlist
);
7511 add_prefix_cmd ("remote", class_maintenance
, show_remote_cmd
, _("\
7512 Remote protocol specific variables\n\
7513 Configure various remote-protocol specific variables such as\n\
7514 the packets being used"),
7515 &remote_show_cmdlist
, "show remote ",
7516 0 /* allow-unknown */, &showlist
);
7518 add_cmd ("compare-sections", class_obscure
, compare_sections_command
, _("\
7519 Compare section data on target to the exec file.\n\
7520 Argument is a single section name (default: all loaded sections)."),
7523 add_cmd ("packet", class_maintenance
, packet_command
, _("\
7524 Send an arbitrary packet to a remote target.\n\
7525 maintenance packet TEXT\n\
7526 If GDB is talking to an inferior via the GDB serial protocol, then\n\
7527 this command sends the string TEXT to the inferior, and displays the\n\
7528 response packet. GDB supplies the initial `$' character, and the\n\
7529 terminating `#' character and checksum."),
7532 add_setshow_boolean_cmd ("remotebreak", no_class
, &remote_break
, _("\
7533 Set whether to send break if interrupted."), _("\
7534 Show whether to send break if interrupted."), _("\
7535 If set, a break, instead of a cntrl-c, is sent to the remote target."),
7536 NULL
, NULL
, /* FIXME: i18n: Whether to send break if interrupted is %s. */
7537 &setlist
, &showlist
);
7539 /* Install commands for configuring memory read/write packets. */
7541 add_cmd ("remotewritesize", no_class
, set_memory_write_packet_size
, _("\
7542 Set the maximum number of bytes per memory write packet (deprecated)."),
7544 add_cmd ("remotewritesize", no_class
, show_memory_write_packet_size
, _("\
7545 Show the maximum number of bytes per memory write packet (deprecated)."),
7547 add_cmd ("memory-write-packet-size", no_class
,
7548 set_memory_write_packet_size
, _("\
7549 Set the maximum number of bytes per memory-write packet.\n\
7550 Specify the number of bytes in a packet or 0 (zero) for the\n\
7551 default packet size. The actual limit is further reduced\n\
7552 dependent on the target. Specify ``fixed'' to disable the\n\
7553 further restriction and ``limit'' to enable that restriction."),
7554 &remote_set_cmdlist
);
7555 add_cmd ("memory-read-packet-size", no_class
,
7556 set_memory_read_packet_size
, _("\
7557 Set the maximum number of bytes per memory-read packet.\n\
7558 Specify the number of bytes in a packet or 0 (zero) for the\n\
7559 default packet size. The actual limit is further reduced\n\
7560 dependent on the target. Specify ``fixed'' to disable the\n\
7561 further restriction and ``limit'' to enable that restriction."),
7562 &remote_set_cmdlist
);
7563 add_cmd ("memory-write-packet-size", no_class
,
7564 show_memory_write_packet_size
,
7565 _("Show the maximum number of bytes per memory-write packet."),
7566 &remote_show_cmdlist
);
7567 add_cmd ("memory-read-packet-size", no_class
,
7568 show_memory_read_packet_size
,
7569 _("Show the maximum number of bytes per memory-read packet."),
7570 &remote_show_cmdlist
);
7572 add_setshow_zinteger_cmd ("hardware-watchpoint-limit", no_class
,
7573 &remote_hw_watchpoint_limit
, _("\
7574 Set the maximum number of target hardware watchpoints."), _("\
7575 Show the maximum number of target hardware watchpoints."), _("\
7576 Specify a negative limit for unlimited."),
7577 NULL
, NULL
, /* FIXME: i18n: The maximum number of target hardware watchpoints is %s. */
7578 &remote_set_cmdlist
, &remote_show_cmdlist
);
7579 add_setshow_zinteger_cmd ("hardware-breakpoint-limit", no_class
,
7580 &remote_hw_breakpoint_limit
, _("\
7581 Set the maximum number of target hardware breakpoints."), _("\
7582 Show the maximum number of target hardware breakpoints."), _("\
7583 Specify a negative limit for unlimited."),
7584 NULL
, NULL
, /* FIXME: i18n: The maximum number of target hardware breakpoints is %s. */
7585 &remote_set_cmdlist
, &remote_show_cmdlist
);
7587 add_setshow_integer_cmd ("remoteaddresssize", class_obscure
,
7588 &remote_address_size
, _("\
7589 Set the maximum size of the address (in bits) in a memory packet."), _("\
7590 Show the maximum size of the address (in bits) in a memory packet."), NULL
,
7592 NULL
, /* FIXME: i18n: */
7593 &setlist
, &showlist
);
7595 add_packet_config_cmd (&remote_protocol_packets
[PACKET_X
],
7596 "X", "binary-download", 1);
7598 add_packet_config_cmd (&remote_protocol_packets
[PACKET_vCont
],
7599 "vCont", "verbose-resume", 0);
7601 add_packet_config_cmd (&remote_protocol_packets
[PACKET_QPassSignals
],
7602 "QPassSignals", "pass-signals", 0);
7604 add_packet_config_cmd (&remote_protocol_packets
[PACKET_qSymbol
],
7605 "qSymbol", "symbol-lookup", 0);
7607 add_packet_config_cmd (&remote_protocol_packets
[PACKET_P
],
7608 "P", "set-register", 1);
7610 add_packet_config_cmd (&remote_protocol_packets
[PACKET_p
],
7611 "p", "fetch-register", 1);
7613 add_packet_config_cmd (&remote_protocol_packets
[PACKET_Z0
],
7614 "Z0", "software-breakpoint", 0);
7616 add_packet_config_cmd (&remote_protocol_packets
[PACKET_Z1
],
7617 "Z1", "hardware-breakpoint", 0);
7619 add_packet_config_cmd (&remote_protocol_packets
[PACKET_Z2
],
7620 "Z2", "write-watchpoint", 0);
7622 add_packet_config_cmd (&remote_protocol_packets
[PACKET_Z3
],
7623 "Z3", "read-watchpoint", 0);
7625 add_packet_config_cmd (&remote_protocol_packets
[PACKET_Z4
],
7626 "Z4", "access-watchpoint", 0);
7628 add_packet_config_cmd (&remote_protocol_packets
[PACKET_qXfer_auxv
],
7629 "qXfer:auxv:read", "read-aux-vector", 0);
7631 add_packet_config_cmd (&remote_protocol_packets
[PACKET_qXfer_features
],
7632 "qXfer:features:read", "target-features", 0);
7634 add_packet_config_cmd (&remote_protocol_packets
[PACKET_qXfer_libraries
],
7635 "qXfer:libraries:read", "library-info", 0);
7637 add_packet_config_cmd (&remote_protocol_packets
[PACKET_qXfer_memory_map
],
7638 "qXfer:memory-map:read", "memory-map", 0);
7640 add_packet_config_cmd (&remote_protocol_packets
[PACKET_qXfer_spu_read
],
7641 "qXfer:spu:read", "read-spu-object", 0);
7643 add_packet_config_cmd (&remote_protocol_packets
[PACKET_qXfer_spu_write
],
7644 "qXfer:spu:write", "write-spu-object", 0);
7646 add_packet_config_cmd (&remote_protocol_packets
[PACKET_qGetTLSAddr
],
7647 "qGetTLSAddr", "get-thread-local-storage-address",
7650 add_packet_config_cmd (&remote_protocol_packets
[PACKET_qSupported
],
7651 "qSupported", "supported-packets", 0);
7653 add_packet_config_cmd (&remote_protocol_packets
[PACKET_vFile_open
],
7654 "vFile:open", "hostio-open", 0);
7656 add_packet_config_cmd (&remote_protocol_packets
[PACKET_vFile_pread
],
7657 "vFile:pread", "hostio-pread", 0);
7659 add_packet_config_cmd (&remote_protocol_packets
[PACKET_vFile_pwrite
],
7660 "vFile:pwrite", "hostio-pwrite", 0);
7662 add_packet_config_cmd (&remote_protocol_packets
[PACKET_vFile_close
],
7663 "vFile:close", "hostio-close", 0);
7665 add_packet_config_cmd (&remote_protocol_packets
[PACKET_vFile_unlink
],
7666 "vFile:unlink", "hostio-unlink", 0);
7668 add_packet_config_cmd (&remote_protocol_packets
[PACKET_vAttach
],
7669 "vAttach", "attach", 0);
7671 add_packet_config_cmd (&remote_protocol_packets
[PACKET_vRun
],
7674 /* Keep the old ``set remote Z-packet ...'' working. Each individual
7675 Z sub-packet has its own set and show commands, but users may
7676 have sets to this variable in their .gdbinit files (or in their
7678 add_setshow_auto_boolean_cmd ("Z-packet", class_obscure
,
7679 &remote_Z_packet_detect
, _("\
7680 Set use of remote protocol `Z' packets"), _("\
7681 Show use of remote protocol `Z' packets "), _("\
7682 When set, GDB will attempt to use the remote breakpoint and watchpoint\n\
7684 set_remote_protocol_Z_packet_cmd
,
7685 show_remote_protocol_Z_packet_cmd
, /* FIXME: i18n: Use of remote protocol `Z' packets is %s. */
7686 &remote_set_cmdlist
, &remote_show_cmdlist
);
7688 add_prefix_cmd ("remote", class_files
, remote_command
, _("\
7689 Manipulate files on the remote system\n\
7690 Transfer files to and from the remote target system."),
7691 &remote_cmdlist
, "remote ",
7692 0 /* allow-unknown */, &cmdlist
);
7694 add_cmd ("put", class_files
, remote_put_command
,
7695 _("Copy a local file to the remote system."),
7698 add_cmd ("get", class_files
, remote_get_command
,
7699 _("Copy a remote file to the local system."),
7702 add_cmd ("delete", class_files
, remote_delete_command
,
7703 _("Delete a remote file."),
7706 remote_exec_file
= xstrdup ("");
7707 add_setshow_string_noescape_cmd ("exec-file", class_files
,
7708 &remote_exec_file
, _("\
7709 Set the remote pathname for \"run\""), _("\
7710 Show the remote pathname for \"run\""), NULL
, NULL
, NULL
,
7711 &remote_set_cmdlist
, &remote_show_cmdlist
);
7713 /* Eventually initialize fileio. See fileio.c */
7714 initialize_remote_fileio (remote_set_cmdlist
, remote_show_cmdlist
);