1 /* Remote target communications for serial-line targets in custom GDB protocol
3 Copyright 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
4 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
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 2 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, write to the Free Software
21 Foundation, Inc., 59 Temple Place - Suite 330,
22 Boston, MA 02111-1307, USA. */
24 /* See the GDB User Guide for details of the GDB remote protocol. */
27 #include "gdb_string.h"
33 #include "exceptions.h"
35 /*#include "terminal.h" */
38 #include "gdb-stabs.h"
39 #include "gdbthread.h"
43 #include "gdb_assert.h"
49 #include "event-loop.h"
50 #include "event-top.h"
56 #include "gdbcore.h" /* for exec_bfd */
58 #include "remote-fileio.h"
60 /* Prototypes for local functions. */
61 static void cleanup_sigint_signal_handler (void *dummy
);
62 static void initialize_sigint_signal_handler (void);
63 static int getpkt_sane (char *buf
, long sizeof_buf
, int forever
);
65 static void handle_remote_sigint (int);
66 static void handle_remote_sigint_twice (int);
67 static void async_remote_interrupt (gdb_client_data
);
68 void async_remote_interrupt_twice (gdb_client_data
);
70 static void build_remote_gdbarch_data (void);
72 static void remote_files_info (struct target_ops
*ignore
);
74 static int remote_xfer_memory (CORE_ADDR memaddr
, char *myaddr
,
75 int len
, int should_write
,
76 struct mem_attrib
*attrib
,
77 struct target_ops
*target
);
79 static void remote_prepare_to_store (void);
81 static void remote_fetch_registers (int regno
);
83 static void remote_resume (ptid_t ptid
, int step
,
84 enum target_signal siggnal
);
85 static void remote_async_resume (ptid_t ptid
, int step
,
86 enum target_signal siggnal
);
87 static void remote_open (char *name
, int from_tty
);
88 static void remote_async_open (char *name
, int from_tty
);
90 static void extended_remote_open (char *name
, int from_tty
);
91 static void extended_remote_async_open (char *name
, int from_tty
);
93 static void remote_open_1 (char *, int, struct target_ops
*, int extended_p
,
96 static void remote_close (int quitting
);
98 static void remote_store_registers (int regno
);
100 static void remote_mourn (void);
101 static void remote_async_mourn (void);
103 static void extended_remote_restart (void);
105 static void extended_remote_mourn (void);
107 static void remote_mourn_1 (struct target_ops
*);
109 static void remote_send (char *buf
, long sizeof_buf
);
111 static int readchar (int timeout
);
113 static ptid_t
remote_wait (ptid_t ptid
,
114 struct target_waitstatus
*status
);
115 static ptid_t
remote_async_wait (ptid_t ptid
,
116 struct target_waitstatus
*status
);
118 static void remote_kill (void);
119 static void remote_async_kill (void);
121 static int tohex (int nib
);
123 static void remote_detach (char *args
, int from_tty
);
125 static void remote_interrupt (int signo
);
127 static void remote_interrupt_twice (int signo
);
129 static void interrupt_query (void);
131 static void set_thread (int, int);
133 static int remote_thread_alive (ptid_t
);
135 static void get_offsets (void);
137 static long read_frame (char *buf
, long sizeof_buf
);
139 static int remote_insert_breakpoint (CORE_ADDR
, char *);
141 static int remote_remove_breakpoint (CORE_ADDR
, char *);
143 static int hexnumlen (ULONGEST num
);
145 static void init_remote_ops (void);
147 static void init_extended_remote_ops (void);
149 static void remote_stop (void);
151 static int ishex (int ch
, int *val
);
153 static int stubhex (int ch
);
155 static int hexnumstr (char *, ULONGEST
);
157 static int hexnumnstr (char *, ULONGEST
, int);
159 static CORE_ADDR
remote_address_masked (CORE_ADDR
);
161 static void print_packet (char *);
163 static unsigned long crc32 (unsigned char *, int, unsigned int);
165 static void compare_sections_command (char *, int);
167 static void packet_command (char *, int);
169 static int stub_unpack_int (char *buff
, int fieldlength
);
171 static ptid_t
remote_current_thread (ptid_t oldptid
);
173 static void remote_find_new_threads (void);
175 static void record_currthread (int currthread
);
177 static int fromhex (int a
);
179 static int hex2bin (const char *hex
, char *bin
, int count
);
181 static int bin2hex (const char *bin
, char *hex
, int count
);
183 static int putpkt_binary (char *buf
, int cnt
);
185 static void check_binary_download (CORE_ADDR addr
);
187 struct packet_config
;
189 static void show_packet_config_cmd (struct packet_config
*config
);
191 static void update_packet_config (struct packet_config
*config
);
193 void _initialize_remote (void);
195 /* Description of the remote protocol. Strictly speaking, when the
196 target is open()ed, remote.c should create a per-target description
197 of the remote protocol using that target's architecture.
198 Unfortunately, the target stack doesn't include local state. For
199 the moment keep the information in the target's architecture
204 long offset
; /* Offset into G packet. */
205 long regnum
; /* GDB's internal register number. */
206 LONGEST pnum
; /* Remote protocol register number. */
207 int in_g_packet
; /* Always part of G packet. */
208 /* long size in bytes; == register_size (current_gdbarch, regnum);
210 /* char *name; == REGISTER_NAME (regnum); at present. */
215 /* Description of the remote protocol registers. */
216 long sizeof_g_packet
;
218 /* Description of the remote protocol registers indexed by REGNUM
219 (making an array of NUM_REGS + NUM_PSEUDO_REGS in size). */
220 struct packet_reg
*regs
;
222 /* This is the size (in chars) of the first response to the ``g''
223 packet. It is used as a heuristic when determining the maximum
224 size of memory-read and memory-write packets. A target will
225 typically only reserve a buffer large enough to hold the ``g''
226 packet. The size does not include packet overhead (headers and
228 long actual_register_packet_size
;
230 /* This is the maximum size (in chars) of a non read/write packet.
231 It is also used as a cap on the size of read/write packets. */
232 long remote_packet_size
;
236 /* Handle for retreving the remote protocol data from gdbarch. */
237 static struct gdbarch_data
*remote_gdbarch_data_handle
;
239 static struct remote_state
*
240 get_remote_state (void)
242 return gdbarch_data (current_gdbarch
, remote_gdbarch_data_handle
);
246 init_remote_state (struct gdbarch
*gdbarch
)
249 struct remote_state
*rs
= GDBARCH_OBSTACK_ZALLOC (gdbarch
, struct remote_state
);
251 if (deprecated_register_bytes () != 0)
252 rs
->sizeof_g_packet
= deprecated_register_bytes ();
254 rs
->sizeof_g_packet
= 0;
256 /* Assume a 1:1 regnum<->pnum table. */
257 rs
->regs
= GDBARCH_OBSTACK_CALLOC (gdbarch
, NUM_REGS
+ NUM_PSEUDO_REGS
,
259 for (regnum
= 0; regnum
< NUM_REGS
+ NUM_PSEUDO_REGS
; regnum
++)
261 struct packet_reg
*r
= &rs
->regs
[regnum
];
264 r
->offset
= DEPRECATED_REGISTER_BYTE (regnum
);
265 r
->in_g_packet
= (regnum
< NUM_REGS
);
266 /* ...name = REGISTER_NAME (regnum); */
268 /* Compute packet size by accumulating the size of all registers. */
269 if (deprecated_register_bytes () == 0)
270 rs
->sizeof_g_packet
+= register_size (current_gdbarch
, regnum
);
273 /* Default maximum number of characters in a packet body. Many
274 remote stubs have a hardwired buffer size of 400 bytes
275 (c.f. BUFMAX in m68k-stub.c and i386-stub.c). BUFMAX-1 is used
276 as the maximum packet-size to ensure that the packet and an extra
277 NUL character can always fit in the buffer. This stops GDB
278 trashing stubs that try to squeeze an extra NUL into what is
279 already a full buffer (As of 1999-12-04 that was most stubs. */
280 rs
->remote_packet_size
= 400 - 1;
282 /* Should rs->sizeof_g_packet needs more space than the
283 default, adjust the size accordingly. Remember that each byte is
284 encoded as two characters. 32 is the overhead for the packet
285 header / footer. NOTE: cagney/1999-10-26: I suspect that 8
286 (``$NN:G...#NN'') is a better guess, the below has been padded a
288 if (rs
->sizeof_g_packet
> ((rs
->remote_packet_size
- 32) / 2))
289 rs
->remote_packet_size
= (rs
->sizeof_g_packet
* 2 + 32);
291 /* This one is filled in when a ``g'' packet is received. */
292 rs
->actual_register_packet_size
= 0;
297 static struct packet_reg
*
298 packet_reg_from_regnum (struct remote_state
*rs
, long regnum
)
300 if (regnum
< 0 && regnum
>= NUM_REGS
+ NUM_PSEUDO_REGS
)
304 struct packet_reg
*r
= &rs
->regs
[regnum
];
305 gdb_assert (r
->regnum
== regnum
);
310 static struct packet_reg
*
311 packet_reg_from_pnum (struct remote_state
*rs
, LONGEST pnum
)
314 for (i
= 0; i
< NUM_REGS
+ NUM_PSEUDO_REGS
; i
++)
316 struct packet_reg
*r
= &rs
->regs
[i
];
323 /* FIXME: graces/2002-08-08: These variables should eventually be
324 bound to an instance of the target object (as in gdbarch-tdep()),
325 when such a thing exists. */
327 /* This is set to the data address of the access causing the target
328 to stop for a watchpoint. */
329 static CORE_ADDR remote_watch_data_address
;
331 /* This is non-zero if taregt stopped for a watchpoint. */
332 static int remote_stopped_by_watchpoint_p
;
335 static struct target_ops remote_ops
;
337 static struct target_ops extended_remote_ops
;
339 /* Temporary target ops. Just like the remote_ops and
340 extended_remote_ops, but with asynchronous support. */
341 static struct target_ops remote_async_ops
;
343 static struct target_ops extended_async_remote_ops
;
345 /* FIXME: cagney/1999-09-23: Even though getpkt was called with
346 ``forever'' still use the normal timeout mechanism. This is
347 currently used by the ASYNC code to guarentee that target reads
348 during the initial connect always time-out. Once getpkt has been
349 modified to return a timeout indication and, in turn
350 remote_wait()/wait_for_inferior() have gained a timeout parameter
352 static int wait_forever_enabled_p
= 1;
355 /* This variable chooses whether to send a ^C or a break when the user
356 requests program interruption. Although ^C is usually what remote
357 systems expect, and that is the default here, sometimes a break is
358 preferable instead. */
360 static int remote_break
;
362 /* Descriptor for I/O to remote machine. Initialize it to NULL so that
363 remote_open knows that we don't have a file open when the program
365 static struct serial
*remote_desc
= NULL
;
367 /* This variable sets the number of bits in an address that are to be
368 sent in a memory ("M" or "m") packet. Normally, after stripping
369 leading zeros, the entire address would be sent. This variable
370 restricts the address to REMOTE_ADDRESS_SIZE bits. HISTORY: The
371 initial implementation of remote.c restricted the address sent in
372 memory packets to ``host::sizeof long'' bytes - (typically 32
373 bits). Consequently, for 64 bit targets, the upper 32 bits of an
374 address was never sent. Since fixing this bug may cause a break in
375 some remote targets this variable is principly provided to
376 facilitate backward compatibility. */
378 static int remote_address_size
;
380 /* Tempoary to track who currently owns the terminal. See
381 target_async_terminal_* for more details. */
383 static int remote_async_terminal_ours_p
;
386 /* User configurable variables for the number of characters in a
387 memory read/write packet. MIN ((rs->remote_packet_size),
388 rs->sizeof_g_packet) is the default. Some targets need smaller
389 values (fifo overruns, et.al.) and some users need larger values
390 (speed up transfers). The variables ``preferred_*'' (the user
391 request), ``current_*'' (what was actually set) and ``forced_*''
392 (Positive - a soft limit, negative - a hard limit). */
394 struct memory_packet_config
401 /* Compute the current size of a read/write packet. Since this makes
402 use of ``actual_register_packet_size'' the computation is dynamic. */
405 get_memory_packet_size (struct memory_packet_config
*config
)
407 struct remote_state
*rs
= get_remote_state ();
408 /* NOTE: The somewhat arbitrary 16k comes from the knowledge (folk
409 law?) that some hosts don't cope very well with large alloca()
410 calls. Eventually the alloca() code will be replaced by calls to
411 xmalloc() and make_cleanups() allowing this restriction to either
412 be lifted or removed. */
413 #ifndef MAX_REMOTE_PACKET_SIZE
414 #define MAX_REMOTE_PACKET_SIZE 16384
416 /* NOTE: 20 ensures we can write at least one byte. */
417 #ifndef MIN_REMOTE_PACKET_SIZE
418 #define MIN_REMOTE_PACKET_SIZE 20
423 if (config
->size
<= 0)
424 what_they_get
= MAX_REMOTE_PACKET_SIZE
;
426 what_they_get
= config
->size
;
430 what_they_get
= (rs
->remote_packet_size
);
431 /* Limit the packet to the size specified by the user. */
433 && what_they_get
> config
->size
)
434 what_they_get
= config
->size
;
435 /* Limit it to the size of the targets ``g'' response. */
436 if ((rs
->actual_register_packet_size
) > 0
437 && what_they_get
> (rs
->actual_register_packet_size
))
438 what_they_get
= (rs
->actual_register_packet_size
);
440 if (what_they_get
> MAX_REMOTE_PACKET_SIZE
)
441 what_they_get
= MAX_REMOTE_PACKET_SIZE
;
442 if (what_they_get
< MIN_REMOTE_PACKET_SIZE
)
443 what_they_get
= MIN_REMOTE_PACKET_SIZE
;
444 return what_they_get
;
447 /* Update the size of a read/write packet. If they user wants
448 something really big then do a sanity check. */
451 set_memory_packet_size (char *args
, struct memory_packet_config
*config
)
453 int fixed_p
= config
->fixed_p
;
454 long size
= config
->size
;
456 error (_("Argument required (integer, `fixed' or `limited')."));
457 else if (strcmp (args
, "hard") == 0
458 || strcmp (args
, "fixed") == 0)
460 else if (strcmp (args
, "soft") == 0
461 || strcmp (args
, "limit") == 0)
466 size
= strtoul (args
, &end
, 0);
468 error (_("Invalid %s (bad syntax)."), config
->name
);
470 /* Instead of explicitly capping the size of a packet to
471 MAX_REMOTE_PACKET_SIZE or dissallowing it, the user is
472 instead allowed to set the size to something arbitrarily
474 if (size
> MAX_REMOTE_PACKET_SIZE
)
475 error (_("Invalid %s (too large)."), config
->name
);
479 if (fixed_p
&& !config
->fixed_p
)
481 if (! query (_("The target may not be able to correctly handle a %s\n"
482 "of %ld bytes. Change the packet size? "),
484 error (_("Packet size not changed."));
486 /* Update the config. */
487 config
->fixed_p
= fixed_p
;
492 show_memory_packet_size (struct memory_packet_config
*config
)
494 printf_filtered (_("The %s is %ld. "), config
->name
, config
->size
);
496 printf_filtered (_("Packets are fixed at %ld bytes.\n"),
497 get_memory_packet_size (config
));
499 printf_filtered (_("Packets are limited to %ld bytes.\n"),
500 get_memory_packet_size (config
));
503 static struct memory_packet_config memory_write_packet_config
=
505 "memory-write-packet-size",
509 set_memory_write_packet_size (char *args
, int from_tty
)
511 set_memory_packet_size (args
, &memory_write_packet_config
);
515 show_memory_write_packet_size (char *args
, int from_tty
)
517 show_memory_packet_size (&memory_write_packet_config
);
521 get_memory_write_packet_size (void)
523 return get_memory_packet_size (&memory_write_packet_config
);
526 static struct memory_packet_config memory_read_packet_config
=
528 "memory-read-packet-size",
532 set_memory_read_packet_size (char *args
, int from_tty
)
534 set_memory_packet_size (args
, &memory_read_packet_config
);
538 show_memory_read_packet_size (char *args
, int from_tty
)
540 show_memory_packet_size (&memory_read_packet_config
);
544 get_memory_read_packet_size (void)
546 struct remote_state
*rs
= get_remote_state ();
547 long size
= get_memory_packet_size (&memory_read_packet_config
);
548 /* FIXME: cagney/1999-11-07: Functions like getpkt() need to get an
549 extra buffer size argument before the memory read size can be
550 increased beyond (rs->remote_packet_size). */
551 if (size
> (rs
->remote_packet_size
))
552 size
= (rs
->remote_packet_size
);
557 /* Generic configuration support for packets the stub optionally
558 supports. Allows the user to specify the use of the packet as well
559 as allowing GDB to auto-detect support in the remote stub. */
563 PACKET_SUPPORT_UNKNOWN
= 0,
572 enum auto_boolean detect
;
573 enum packet_support support
;
576 /* Analyze a packet's return value and update the packet config
587 update_packet_config (struct packet_config
*config
)
589 switch (config
->detect
)
591 case AUTO_BOOLEAN_TRUE
:
592 config
->support
= PACKET_ENABLE
;
594 case AUTO_BOOLEAN_FALSE
:
595 config
->support
= PACKET_DISABLE
;
597 case AUTO_BOOLEAN_AUTO
:
598 config
->support
= PACKET_SUPPORT_UNKNOWN
;
604 show_packet_config_cmd (struct packet_config
*config
)
606 char *support
= "internal-error";
607 switch (config
->support
)
613 support
= "disabled";
615 case PACKET_SUPPORT_UNKNOWN
:
619 switch (config
->detect
)
621 case AUTO_BOOLEAN_AUTO
:
622 printf_filtered (_("Support for remote protocol `%s' (%s) packet is auto-detected, currently %s.\n"),
623 config
->name
, config
->title
, support
);
625 case AUTO_BOOLEAN_TRUE
:
626 case AUTO_BOOLEAN_FALSE
:
627 printf_filtered (_("Support for remote protocol `%s' (%s) packet is currently %s.\n"),
628 config
->name
, config
->title
, support
);
634 add_packet_config_cmd (struct packet_config
*config
,
637 cmd_sfunc_ftype
*set_func
,
638 show_value_ftype
*show_func
,
639 struct cmd_list_element
**set_remote_list
,
640 struct cmd_list_element
**show_remote_list
,
648 config
->title
= title
;
649 config
->detect
= AUTO_BOOLEAN_AUTO
;
650 config
->support
= PACKET_SUPPORT_UNKNOWN
;
651 set_doc
= xstrprintf ("Set use of remote protocol `%s' (%s) packet",
653 show_doc
= xstrprintf ("Show current use of remote protocol `%s' (%s) packet",
655 /* set/show TITLE-packet {auto,on,off} */
656 cmd_name
= xstrprintf ("%s-packet", title
);
657 add_setshow_auto_boolean_cmd (cmd_name
, class_obscure
,
658 &config
->detect
, set_doc
, show_doc
, NULL
, /* help_doc */
660 set_remote_list
, show_remote_list
);
661 /* set/show remote NAME-packet {auto,on,off} -- legacy. */
665 legacy_name
= xstrprintf ("%s-packet", name
);
666 add_alias_cmd (legacy_name
, cmd_name
, class_obscure
, 0,
668 add_alias_cmd (legacy_name
, cmd_name
, class_obscure
, 0,
673 static enum packet_result
674 packet_ok (const char *buf
, struct packet_config
*config
)
678 /* The stub recognized the packet request. Check that the
679 operation succeeded. */
680 switch (config
->support
)
682 case PACKET_SUPPORT_UNKNOWN
:
684 fprintf_unfiltered (gdb_stdlog
,
685 "Packet %s (%s) is supported\n",
686 config
->name
, config
->title
);
687 config
->support
= PACKET_ENABLE
;
690 internal_error (__FILE__
, __LINE__
,
691 _("packet_ok: attempt to use a disabled packet"));
696 if (buf
[0] == 'O' && buf
[1] == 'K' && buf
[2] == '\0')
697 /* "OK" - definitly OK. */
700 && isxdigit (buf
[1]) && isxdigit (buf
[2])
702 /* "Enn" - definitly an error. */
704 /* The packet may or may not be OK. Just assume it is. */
709 /* The stub does not support the packet. */
710 switch (config
->support
)
713 if (config
->detect
== AUTO_BOOLEAN_AUTO
)
714 /* If the stub previously indicated that the packet was
715 supported then there is a protocol error.. */
716 error (_("Protocol error: %s (%s) conflicting enabled responses."),
717 config
->name
, config
->title
);
719 /* The user set it wrong. */
720 error (_("Enabled packet %s (%s) not recognized by stub"),
721 config
->name
, config
->title
);
723 case PACKET_SUPPORT_UNKNOWN
:
725 fprintf_unfiltered (gdb_stdlog
,
726 "Packet %s (%s) is NOT supported\n",
727 config
->name
, config
->title
);
728 config
->support
= PACKET_DISABLE
;
733 return PACKET_UNKNOWN
;
737 /* Should we try the 'vCont' (descriptive resume) request? */
738 static struct packet_config remote_protocol_vcont
;
741 set_remote_protocol_vcont_packet_cmd (char *args
, int from_tty
,
742 struct cmd_list_element
*c
)
744 update_packet_config (&remote_protocol_vcont
);
748 show_remote_protocol_vcont_packet_cmd (struct ui_file
*file
, int from_tty
,
749 struct cmd_list_element
*c
,
752 show_packet_config_cmd (&remote_protocol_vcont
);
755 /* Should we try the 'qSymbol' (target symbol lookup service) request? */
756 static struct packet_config remote_protocol_qSymbol
;
759 set_remote_protocol_qSymbol_packet_cmd (char *args
, int from_tty
,
760 struct cmd_list_element
*c
)
762 update_packet_config (&remote_protocol_qSymbol
);
766 show_remote_protocol_qSymbol_packet_cmd (struct ui_file
*file
, int from_tty
,
767 struct cmd_list_element
*c
,
770 show_packet_config_cmd (&remote_protocol_qSymbol
);
773 /* Should we try the 'P' (set register) request? */
775 static struct packet_config remote_protocol_P
;
778 set_remote_protocol_P_packet_cmd (char *args
, int from_tty
,
779 struct cmd_list_element
*c
)
781 update_packet_config (&remote_protocol_P
);
785 show_remote_protocol_P_packet_cmd (struct ui_file
*file
, int from_tty
,
786 struct cmd_list_element
*c
,
789 show_packet_config_cmd (&remote_protocol_P
);
792 /* Should we try one of the 'Z' requests? */
796 Z_PACKET_SOFTWARE_BP
,
797 Z_PACKET_HARDWARE_BP
,
804 static struct packet_config remote_protocol_Z
[NR_Z_PACKET_TYPES
];
806 /* FIXME: Instead of having all these boiler plate functions, the
807 command callback should include a context argument. */
810 set_remote_protocol_Z_software_bp_packet_cmd (char *args
, int from_tty
,
811 struct cmd_list_element
*c
)
813 update_packet_config (&remote_protocol_Z
[Z_PACKET_SOFTWARE_BP
]);
817 show_remote_protocol_Z_software_bp_packet_cmd (struct ui_file
*file
, int from_tty
,
818 struct cmd_list_element
*c
,
821 show_packet_config_cmd (&remote_protocol_Z
[Z_PACKET_SOFTWARE_BP
]);
825 set_remote_protocol_Z_hardware_bp_packet_cmd (char *args
, int from_tty
,
826 struct cmd_list_element
*c
)
828 update_packet_config (&remote_protocol_Z
[Z_PACKET_HARDWARE_BP
]);
832 show_remote_protocol_Z_hardware_bp_packet_cmd (struct ui_file
*file
, int from_tty
,
833 struct cmd_list_element
*c
,
836 show_packet_config_cmd (&remote_protocol_Z
[Z_PACKET_HARDWARE_BP
]);
840 set_remote_protocol_Z_write_wp_packet_cmd (char *args
, int from_tty
,
841 struct cmd_list_element
*c
)
843 update_packet_config (&remote_protocol_Z
[Z_PACKET_WRITE_WP
]);
847 show_remote_protocol_Z_write_wp_packet_cmd (struct ui_file
*file
, int from_tty
,
848 struct cmd_list_element
*c
,
851 show_packet_config_cmd (&remote_protocol_Z
[Z_PACKET_WRITE_WP
]);
855 set_remote_protocol_Z_read_wp_packet_cmd (char *args
, int from_tty
,
856 struct cmd_list_element
*c
)
858 update_packet_config (&remote_protocol_Z
[Z_PACKET_READ_WP
]);
862 show_remote_protocol_Z_read_wp_packet_cmd (struct ui_file
*file
, int from_tty
,
863 struct cmd_list_element
*c
,
866 show_packet_config_cmd (&remote_protocol_Z
[Z_PACKET_READ_WP
]);
870 set_remote_protocol_Z_access_wp_packet_cmd (char *args
, int from_tty
,
871 struct cmd_list_element
*c
)
873 update_packet_config (&remote_protocol_Z
[Z_PACKET_ACCESS_WP
]);
877 show_remote_protocol_Z_access_wp_packet_cmd (struct ui_file
*file
, int from_tty
,
878 struct cmd_list_element
*c
,
881 show_packet_config_cmd (&remote_protocol_Z
[Z_PACKET_ACCESS_WP
]);
884 /* For compatibility with older distributions. Provide a ``set remote
885 Z-packet ...'' command that updates all the Z packet types. */
887 static enum auto_boolean remote_Z_packet_detect
;
890 set_remote_protocol_Z_packet_cmd (char *args
, int from_tty
,
891 struct cmd_list_element
*c
)
894 for (i
= 0; i
< NR_Z_PACKET_TYPES
; i
++)
896 remote_protocol_Z
[i
].detect
= remote_Z_packet_detect
;
897 update_packet_config (&remote_protocol_Z
[i
]);
902 show_remote_protocol_Z_packet_cmd (struct ui_file
*file
, int from_tty
,
903 struct cmd_list_element
*c
,
907 for (i
= 0; i
< NR_Z_PACKET_TYPES
; i
++)
909 show_packet_config_cmd (&remote_protocol_Z
[i
]);
913 /* Should we try the 'X' (remote binary download) packet?
915 This variable (available to the user via "set remote X-packet")
916 dictates whether downloads are sent in binary (via the 'X' packet).
917 We assume that the stub can, and attempt to do it. This will be
918 cleared if the stub does not understand it. This switch is still
919 needed, though in cases when the packet is supported in the stub,
920 but the connection does not allow it (i.e., 7-bit serial connection
923 static struct packet_config remote_protocol_binary_download
;
925 /* Should we try the 'ThreadInfo' query packet?
927 This variable (NOT available to the user: auto-detect only!)
928 determines whether GDB will use the new, simpler "ThreadInfo"
929 query or the older, more complex syntax for thread queries.
930 This is an auto-detect variable (set to true at each connect,
931 and set to false when the target fails to recognize it). */
933 static int use_threadinfo_query
;
934 static int use_threadextra_query
;
937 set_remote_protocol_binary_download_cmd (char *args
,
939 struct cmd_list_element
*c
)
941 update_packet_config (&remote_protocol_binary_download
);
945 show_remote_protocol_binary_download_cmd (struct ui_file
*file
, int from_tty
,
946 struct cmd_list_element
*c
,
949 show_packet_config_cmd (&remote_protocol_binary_download
);
952 /* Should we try the 'qPart:auxv' (target auxiliary vector read) request? */
953 static struct packet_config remote_protocol_qPart_auxv
;
956 set_remote_protocol_qPart_auxv_packet_cmd (char *args
, int from_tty
,
957 struct cmd_list_element
*c
)
959 update_packet_config (&remote_protocol_qPart_auxv
);
963 show_remote_protocol_qPart_auxv_packet_cmd (struct ui_file
*file
, int from_tty
,
964 struct cmd_list_element
*c
,
967 show_packet_config_cmd (&remote_protocol_qPart_auxv
);
970 /* Should we try the 'qGetTLSAddr' (Get Thread Local Storage Address) request? */
971 static struct packet_config remote_protocol_qGetTLSAddr
;
974 set_remote_protocol_qGetTLSAddr_packet_cmd (char *args
, int from_tty
,
975 struct cmd_list_element
*c
)
977 update_packet_config (&remote_protocol_qGetTLSAddr
);
981 show_remote_protocol_qGetTLSAddr_packet_cmd (struct ui_file
*file
, int from_tty
,
982 struct cmd_list_element
*c
,
985 show_packet_config_cmd (&remote_protocol_qGetTLSAddr
);
988 static struct packet_config remote_protocol_p
;
991 set_remote_protocol_p_packet_cmd (char *args
, int from_tty
,
992 struct cmd_list_element
*c
)
994 update_packet_config (&remote_protocol_p
);
998 show_remote_protocol_p_packet_cmd (struct ui_file
*file
, int from_tty
,
999 struct cmd_list_element
*c
,
1002 show_packet_config_cmd (&remote_protocol_p
);
1007 /* Tokens for use by the asynchronous signal handlers for SIGINT. */
1008 static void *sigint_remote_twice_token
;
1009 static void *sigint_remote_token
;
1011 /* These are pointers to hook functions that may be set in order to
1012 modify resume/wait behavior for a particular architecture. */
1014 void (*deprecated_target_resume_hook
) (void);
1015 void (*deprecated_target_wait_loop_hook
) (void);
1019 /* These are the threads which we last sent to the remote system.
1020 -1 for all or -2 for not sent yet. */
1021 static int general_thread
;
1022 static int continue_thread
;
1024 /* Call this function as a result of
1025 1) A halt indication (T packet) containing a thread id
1026 2) A direct query of currthread
1027 3) Successful execution of set thread
1031 record_currthread (int currthread
)
1033 general_thread
= currthread
;
1035 /* If this is a new thread, add it to GDB's thread list.
1036 If we leave it up to WFI to do this, bad things will happen. */
1037 if (!in_thread_list (pid_to_ptid (currthread
)))
1039 add_thread (pid_to_ptid (currthread
));
1040 ui_out_text (uiout
, "[New ");
1041 ui_out_text (uiout
, target_pid_to_str (pid_to_ptid (currthread
)));
1042 ui_out_text (uiout
, "]\n");
1046 #define MAGIC_NULL_PID 42000
1049 set_thread (int th
, int gen
)
1051 struct remote_state
*rs
= get_remote_state ();
1052 char *buf
= alloca (rs
->remote_packet_size
);
1053 int state
= gen
? general_thread
: continue_thread
;
1059 buf
[1] = gen
? 'g' : 'c';
1060 if (th
== MAGIC_NULL_PID
)
1066 sprintf (&buf
[2], "-%x", -th
);
1068 sprintf (&buf
[2], "%x", th
);
1070 getpkt (buf
, (rs
->remote_packet_size
), 0);
1072 general_thread
= th
;
1074 continue_thread
= th
;
1077 /* Return nonzero if the thread TH is still alive on the remote system. */
1080 remote_thread_alive (ptid_t ptid
)
1082 int tid
= PIDGET (ptid
);
1086 sprintf (buf
, "T-%08x", -tid
);
1088 sprintf (buf
, "T%08x", tid
);
1090 getpkt (buf
, sizeof (buf
), 0);
1091 return (buf
[0] == 'O' && buf
[1] == 'K');
1094 /* About these extended threadlist and threadinfo packets. They are
1095 variable length packets but, the fields within them are often fixed
1096 length. They are redundent enough to send over UDP as is the
1097 remote protocol in general. There is a matching unit test module
1100 #define OPAQUETHREADBYTES 8
1102 /* a 64 bit opaque identifier */
1103 typedef unsigned char threadref
[OPAQUETHREADBYTES
];
1105 /* WARNING: This threadref data structure comes from the remote O.S.,
1106 libstub protocol encoding, and remote.c. it is not particularly
1109 /* Right now, the internal structure is int. We want it to be bigger.
1113 typedef int gdb_threadref
; /* Internal GDB thread reference. */
1115 /* gdb_ext_thread_info is an internal GDB data structure which is
1116 equivalint to the reply of the remote threadinfo packet. */
1118 struct gdb_ext_thread_info
1120 threadref threadid
; /* External form of thread reference. */
1121 int active
; /* Has state interesting to GDB?
1123 char display
[256]; /* Brief state display, name,
1124 blocked/syspended. */
1125 char shortname
[32]; /* To be used to name threads. */
1126 char more_display
[256]; /* Long info, statistics, queue depth,
1130 /* The volume of remote transfers can be limited by submitting
1131 a mask containing bits specifying the desired information.
1132 Use a union of these values as the 'selection' parameter to
1133 get_thread_info. FIXME: Make these TAG names more thread specific.
1136 #define TAG_THREADID 1
1137 #define TAG_EXISTS 2
1138 #define TAG_DISPLAY 4
1139 #define TAG_THREADNAME 8
1140 #define TAG_MOREDISPLAY 16
1142 #define BUF_THREAD_ID_SIZE (OPAQUETHREADBYTES * 2)
1144 char *unpack_varlen_hex (char *buff
, ULONGEST
*result
);
1146 static char *unpack_nibble (char *buf
, int *val
);
1148 static char *pack_nibble (char *buf
, int nibble
);
1150 static char *pack_hex_byte (char *pkt
, int /* unsigned char */ byte
);
1152 static char *unpack_byte (char *buf
, int *value
);
1154 static char *pack_int (char *buf
, int value
);
1156 static char *unpack_int (char *buf
, int *value
);
1158 static char *unpack_string (char *src
, char *dest
, int length
);
1160 static char *pack_threadid (char *pkt
, threadref
*id
);
1162 static char *unpack_threadid (char *inbuf
, threadref
*id
);
1164 void int_to_threadref (threadref
*id
, int value
);
1166 static int threadref_to_int (threadref
*ref
);
1168 static void copy_threadref (threadref
*dest
, threadref
*src
);
1170 static int threadmatch (threadref
*dest
, threadref
*src
);
1172 static char *pack_threadinfo_request (char *pkt
, int mode
,
1175 static int remote_unpack_thread_info_response (char *pkt
,
1176 threadref
*expectedref
,
1177 struct gdb_ext_thread_info
1181 static int remote_get_threadinfo (threadref
*threadid
,
1182 int fieldset
, /*TAG mask */
1183 struct gdb_ext_thread_info
*info
);
1185 static char *pack_threadlist_request (char *pkt
, int startflag
,
1187 threadref
*nextthread
);
1189 static int parse_threadlist_response (char *pkt
,
1191 threadref
*original_echo
,
1192 threadref
*resultlist
,
1195 static int remote_get_threadlist (int startflag
,
1196 threadref
*nextthread
,
1200 threadref
*threadlist
);
1202 typedef int (*rmt_thread_action
) (threadref
*ref
, void *context
);
1204 static int remote_threadlist_iterator (rmt_thread_action stepfunction
,
1205 void *context
, int looplimit
);
1207 static int remote_newthread_step (threadref
*ref
, void *context
);
1209 /* Encode 64 bits in 16 chars of hex. */
1211 static const char hexchars
[] = "0123456789abcdef";
1214 ishex (int ch
, int *val
)
1216 if ((ch
>= 'a') && (ch
<= 'f'))
1218 *val
= ch
- 'a' + 10;
1221 if ((ch
>= 'A') && (ch
<= 'F'))
1223 *val
= ch
- 'A' + 10;
1226 if ((ch
>= '0') && (ch
<= '9'))
1237 if (ch
>= 'a' && ch
<= 'f')
1238 return ch
- 'a' + 10;
1239 if (ch
>= '0' && ch
<= '9')
1241 if (ch
>= 'A' && ch
<= 'F')
1242 return ch
- 'A' + 10;
1247 stub_unpack_int (char *buff
, int fieldlength
)
1254 nibble
= stubhex (*buff
++);
1258 retval
= retval
<< 4;
1264 unpack_varlen_hex (char *buff
, /* packet to parse */
1270 while (ishex (*buff
, &nibble
))
1273 retval
= retval
<< 4;
1274 retval
|= nibble
& 0x0f;
1281 unpack_nibble (char *buf
, int *val
)
1283 ishex (*buf
++, val
);
1288 pack_nibble (char *buf
, int nibble
)
1290 *buf
++ = hexchars
[(nibble
& 0x0f)];
1295 pack_hex_byte (char *pkt
, int byte
)
1297 *pkt
++ = hexchars
[(byte
>> 4) & 0xf];
1298 *pkt
++ = hexchars
[(byte
& 0xf)];
1303 unpack_byte (char *buf
, int *value
)
1305 *value
= stub_unpack_int (buf
, 2);
1310 pack_int (char *buf
, int value
)
1312 buf
= pack_hex_byte (buf
, (value
>> 24) & 0xff);
1313 buf
= pack_hex_byte (buf
, (value
>> 16) & 0xff);
1314 buf
= pack_hex_byte (buf
, (value
>> 8) & 0x0ff);
1315 buf
= pack_hex_byte (buf
, (value
& 0xff));
1320 unpack_int (char *buf
, int *value
)
1322 *value
= stub_unpack_int (buf
, 8);
1326 #if 0 /* Currently unused, uncomment when needed. */
1327 static char *pack_string (char *pkt
, char *string
);
1330 pack_string (char *pkt
, char *string
)
1335 len
= strlen (string
);
1337 len
= 200; /* Bigger than most GDB packets, junk??? */
1338 pkt
= pack_hex_byte (pkt
, len
);
1342 if ((ch
== '\0') || (ch
== '#'))
1343 ch
= '*'; /* Protect encapsulation. */
1348 #endif /* 0 (unused) */
1351 unpack_string (char *src
, char *dest
, int length
)
1360 pack_threadid (char *pkt
, threadref
*id
)
1363 unsigned char *altid
;
1365 altid
= (unsigned char *) id
;
1366 limit
= pkt
+ BUF_THREAD_ID_SIZE
;
1368 pkt
= pack_hex_byte (pkt
, *altid
++);
1374 unpack_threadid (char *inbuf
, threadref
*id
)
1377 char *limit
= inbuf
+ BUF_THREAD_ID_SIZE
;
1380 altref
= (char *) id
;
1382 while (inbuf
< limit
)
1384 x
= stubhex (*inbuf
++);
1385 y
= stubhex (*inbuf
++);
1386 *altref
++ = (x
<< 4) | y
;
1391 /* Externally, threadrefs are 64 bits but internally, they are still
1392 ints. This is due to a mismatch of specifications. We would like
1393 to use 64bit thread references internally. This is an adapter
1397 int_to_threadref (threadref
*id
, int value
)
1399 unsigned char *scan
;
1401 scan
= (unsigned char *) id
;
1407 *scan
++ = (value
>> 24) & 0xff;
1408 *scan
++ = (value
>> 16) & 0xff;
1409 *scan
++ = (value
>> 8) & 0xff;
1410 *scan
++ = (value
& 0xff);
1414 threadref_to_int (threadref
*ref
)
1417 unsigned char *scan
;
1419 scan
= (char *) ref
;
1423 value
= (value
<< 8) | ((*scan
++) & 0xff);
1428 copy_threadref (threadref
*dest
, threadref
*src
)
1431 unsigned char *csrc
, *cdest
;
1433 csrc
= (unsigned char *) src
;
1434 cdest
= (unsigned char *) dest
;
1441 threadmatch (threadref
*dest
, threadref
*src
)
1443 /* Things are broken right now, so just assume we got a match. */
1445 unsigned char *srcp
, *destp
;
1447 srcp
= (char *) src
;
1448 destp
= (char *) dest
;
1452 result
&= (*srcp
++ == *destp
++) ? 1 : 0;
1459 threadid:1, # always request threadid
1466 /* Encoding: 'Q':8,'P':8,mask:32,threadid:64 */
1469 pack_threadinfo_request (char *pkt
, int mode
, threadref
*id
)
1471 *pkt
++ = 'q'; /* Info Query */
1472 *pkt
++ = 'P'; /* process or thread info */
1473 pkt
= pack_int (pkt
, mode
); /* mode */
1474 pkt
= pack_threadid (pkt
, id
); /* threadid */
1475 *pkt
= '\0'; /* terminate */
1479 /* These values tag the fields in a thread info response packet. */
1480 /* Tagging the fields allows us to request specific fields and to
1481 add more fields as time goes by. */
1483 #define TAG_THREADID 1 /* Echo the thread identifier. */
1484 #define TAG_EXISTS 2 /* Is this process defined enough to
1485 fetch registers and its stack? */
1486 #define TAG_DISPLAY 4 /* A short thing maybe to put on a window */
1487 #define TAG_THREADNAME 8 /* string, maps 1-to-1 with a thread is. */
1488 #define TAG_MOREDISPLAY 16 /* Whatever the kernel wants to say about
1492 remote_unpack_thread_info_response (char *pkt
, threadref
*expectedref
,
1493 struct gdb_ext_thread_info
*info
)
1495 struct remote_state
*rs
= get_remote_state ();
1499 char *limit
= pkt
+ (rs
->remote_packet_size
); /* plausable parsing limit */
1502 /* info->threadid = 0; FIXME: implement zero_threadref. */
1504 info
->display
[0] = '\0';
1505 info
->shortname
[0] = '\0';
1506 info
->more_display
[0] = '\0';
1508 /* Assume the characters indicating the packet type have been
1510 pkt
= unpack_int (pkt
, &mask
); /* arg mask */
1511 pkt
= unpack_threadid (pkt
, &ref
);
1514 warning (_("Incomplete response to threadinfo request."));
1515 if (!threadmatch (&ref
, expectedref
))
1516 { /* This is an answer to a different request. */
1517 warning (_("ERROR RMT Thread info mismatch."));
1520 copy_threadref (&info
->threadid
, &ref
);
1522 /* Loop on tagged fields , try to bail if somthing goes wrong. */
1524 /* Packets are terminated with nulls. */
1525 while ((pkt
< limit
) && mask
&& *pkt
)
1527 pkt
= unpack_int (pkt
, &tag
); /* tag */
1528 pkt
= unpack_byte (pkt
, &length
); /* length */
1529 if (!(tag
& mask
)) /* Tags out of synch with mask. */
1531 warning (_("ERROR RMT: threadinfo tag mismatch."));
1535 if (tag
== TAG_THREADID
)
1539 warning (_("ERROR RMT: length of threadid is not 16."));
1543 pkt
= unpack_threadid (pkt
, &ref
);
1544 mask
= mask
& ~TAG_THREADID
;
1547 if (tag
== TAG_EXISTS
)
1549 info
->active
= stub_unpack_int (pkt
, length
);
1551 mask
= mask
& ~(TAG_EXISTS
);
1554 warning (_("ERROR RMT: 'exists' length too long."));
1560 if (tag
== TAG_THREADNAME
)
1562 pkt
= unpack_string (pkt
, &info
->shortname
[0], length
);
1563 mask
= mask
& ~TAG_THREADNAME
;
1566 if (tag
== TAG_DISPLAY
)
1568 pkt
= unpack_string (pkt
, &info
->display
[0], length
);
1569 mask
= mask
& ~TAG_DISPLAY
;
1572 if (tag
== TAG_MOREDISPLAY
)
1574 pkt
= unpack_string (pkt
, &info
->more_display
[0], length
);
1575 mask
= mask
& ~TAG_MOREDISPLAY
;
1578 warning (_("ERROR RMT: unknown thread info tag."));
1579 break; /* Not a tag we know about. */
1585 remote_get_threadinfo (threadref
*threadid
, int fieldset
, /* TAG mask */
1586 struct gdb_ext_thread_info
*info
)
1588 struct remote_state
*rs
= get_remote_state ();
1590 char *threadinfo_pkt
= alloca (rs
->remote_packet_size
);
1592 pack_threadinfo_request (threadinfo_pkt
, fieldset
, threadid
);
1593 putpkt (threadinfo_pkt
);
1594 getpkt (threadinfo_pkt
, (rs
->remote_packet_size
), 0);
1595 result
= remote_unpack_thread_info_response (threadinfo_pkt
+ 2,
1600 /* Format: i'Q':8,i"L":8,initflag:8,batchsize:16,lastthreadid:32 */
1603 pack_threadlist_request (char *pkt
, int startflag
, int threadcount
,
1604 threadref
*nextthread
)
1606 *pkt
++ = 'q'; /* info query packet */
1607 *pkt
++ = 'L'; /* Process LIST or threadLIST request */
1608 pkt
= pack_nibble (pkt
, startflag
); /* initflag 1 bytes */
1609 pkt
= pack_hex_byte (pkt
, threadcount
); /* threadcount 2 bytes */
1610 pkt
= pack_threadid (pkt
, nextthread
); /* 64 bit thread identifier */
1615 /* Encoding: 'q':8,'M':8,count:16,done:8,argthreadid:64,(threadid:64)* */
1618 parse_threadlist_response (char *pkt
, int result_limit
,
1619 threadref
*original_echo
, threadref
*resultlist
,
1622 struct remote_state
*rs
= get_remote_state ();
1624 int count
, resultcount
, done
;
1627 /* Assume the 'q' and 'M chars have been stripped. */
1628 limit
= pkt
+ ((rs
->remote_packet_size
) - BUF_THREAD_ID_SIZE
);
1629 /* done parse past here */
1630 pkt
= unpack_byte (pkt
, &count
); /* count field */
1631 pkt
= unpack_nibble (pkt
, &done
);
1632 /* The first threadid is the argument threadid. */
1633 pkt
= unpack_threadid (pkt
, original_echo
); /* should match query packet */
1634 while ((count
-- > 0) && (pkt
< limit
))
1636 pkt
= unpack_threadid (pkt
, resultlist
++);
1637 if (resultcount
++ >= result_limit
)
1646 remote_get_threadlist (int startflag
, threadref
*nextthread
, int result_limit
,
1647 int *done
, int *result_count
, threadref
*threadlist
)
1649 struct remote_state
*rs
= get_remote_state ();
1650 static threadref echo_nextthread
;
1651 char *threadlist_packet
= alloca (rs
->remote_packet_size
);
1652 char *t_response
= alloca (rs
->remote_packet_size
);
1655 /* Trancate result limit to be smaller than the packet size. */
1656 if ((((result_limit
+ 1) * BUF_THREAD_ID_SIZE
) + 10) >= (rs
->remote_packet_size
))
1657 result_limit
= ((rs
->remote_packet_size
) / BUF_THREAD_ID_SIZE
) - 2;
1659 pack_threadlist_request (threadlist_packet
,
1660 startflag
, result_limit
, nextthread
);
1661 putpkt (threadlist_packet
);
1662 getpkt (t_response
, (rs
->remote_packet_size
), 0);
1665 parse_threadlist_response (t_response
+ 2, result_limit
, &echo_nextthread
,
1668 if (!threadmatch (&echo_nextthread
, nextthread
))
1670 /* FIXME: This is a good reason to drop the packet. */
1671 /* Possably, there is a duplicate response. */
1673 retransmit immediatly - race conditions
1674 retransmit after timeout - yes
1676 wait for packet, then exit
1678 warning (_("HMM: threadlist did not echo arg thread, dropping it."));
1679 return 0; /* I choose simply exiting. */
1681 if (*result_count
<= 0)
1685 warning (_("RMT ERROR : failed to get remote thread list."));
1688 return result
; /* break; */
1690 if (*result_count
> result_limit
)
1693 warning (_("RMT ERROR: threadlist response longer than requested."));
1699 /* This is the interface between remote and threads, remotes upper
1702 /* remote_find_new_threads retrieves the thread list and for each
1703 thread in the list, looks up the thread in GDB's internal list,
1704 ading the thread if it does not already exist. This involves
1705 getting partial thread lists from the remote target so, polling the
1706 quit_flag is required. */
1709 /* About this many threadisds fit in a packet. */
1711 #define MAXTHREADLISTRESULTS 32
1714 remote_threadlist_iterator (rmt_thread_action stepfunction
, void *context
,
1717 int done
, i
, result_count
;
1721 static threadref nextthread
;
1722 static threadref resultthreadlist
[MAXTHREADLISTRESULTS
];
1727 if (loopcount
++ > looplimit
)
1730 warning (_("Remote fetch threadlist -infinite loop-."));
1733 if (!remote_get_threadlist (startflag
, &nextthread
, MAXTHREADLISTRESULTS
,
1734 &done
, &result_count
, resultthreadlist
))
1739 /* Clear for later iterations. */
1741 /* Setup to resume next batch of thread references, set nextthread. */
1742 if (result_count
>= 1)
1743 copy_threadref (&nextthread
, &resultthreadlist
[result_count
- 1]);
1745 while (result_count
--)
1746 if (!(result
= (*stepfunction
) (&resultthreadlist
[i
++], context
)))
1753 remote_newthread_step (threadref
*ref
, void *context
)
1757 ptid
= pid_to_ptid (threadref_to_int (ref
));
1759 if (!in_thread_list (ptid
))
1761 return 1; /* continue iterator */
1764 #define CRAZY_MAX_THREADS 1000
1767 remote_current_thread (ptid_t oldpid
)
1769 struct remote_state
*rs
= get_remote_state ();
1770 char *buf
= alloca (rs
->remote_packet_size
);
1773 getpkt (buf
, (rs
->remote_packet_size
), 0);
1774 if (buf
[0] == 'Q' && buf
[1] == 'C')
1775 /* Use strtoul here, so we'll correctly parse values whose highest
1776 bit is set. The protocol carries them as a simple series of
1777 hex digits; in the absence of a sign, strtol will see such
1778 values as positive numbers out of range for signed 'long', and
1779 return LONG_MAX to indicate an overflow. */
1780 return pid_to_ptid (strtoul (&buf
[2], NULL
, 16));
1785 /* Find new threads for info threads command.
1786 * Original version, using John Metzler's thread protocol.
1790 remote_find_new_threads (void)
1792 remote_threadlist_iterator (remote_newthread_step
, 0,
1794 if (PIDGET (inferior_ptid
) == MAGIC_NULL_PID
) /* ack ack ack */
1795 inferior_ptid
= remote_current_thread (inferior_ptid
);
1799 * Find all threads for info threads command.
1800 * Uses new thread protocol contributed by Cisco.
1801 * Falls back and attempts to use the older method (above)
1802 * if the target doesn't respond to the new method.
1806 remote_threads_info (void)
1808 struct remote_state
*rs
= get_remote_state ();
1809 char *buf
= alloca (rs
->remote_packet_size
);
1813 if (remote_desc
== 0) /* paranoia */
1814 error (_("Command can only be used when connected to the remote target."));
1816 if (use_threadinfo_query
)
1818 putpkt ("qfThreadInfo");
1820 getpkt (bufp
, (rs
->remote_packet_size
), 0);
1821 if (bufp
[0] != '\0') /* q packet recognized */
1823 while (*bufp
++ == 'm') /* reply contains one or more TID */
1827 /* Use strtoul here, so we'll correctly parse values
1828 whose highest bit is set. The protocol carries
1829 them as a simple series of hex digits; in the
1830 absence of a sign, strtol will see such values as
1831 positive numbers out of range for signed 'long',
1832 and return LONG_MAX to indicate an overflow. */
1833 tid
= strtoul (bufp
, &bufp
, 16);
1834 if (tid
!= 0 && !in_thread_list (pid_to_ptid (tid
)))
1835 add_thread (pid_to_ptid (tid
));
1837 while (*bufp
++ == ','); /* comma-separated list */
1838 putpkt ("qsThreadInfo");
1840 getpkt (bufp
, (rs
->remote_packet_size
), 0);
1846 /* Else fall back to old method based on jmetzler protocol. */
1847 use_threadinfo_query
= 0;
1848 remote_find_new_threads ();
1853 * Collect a descriptive string about the given thread.
1854 * The target may say anything it wants to about the thread
1855 * (typically info about its blocked / runnable state, name, etc.).
1856 * This string will appear in the info threads display.
1858 * Optional: targets are not required to implement this function.
1862 remote_threads_extra_info (struct thread_info
*tp
)
1864 struct remote_state
*rs
= get_remote_state ();
1868 struct gdb_ext_thread_info threadinfo
;
1869 static char display_buf
[100]; /* arbitrary... */
1870 char *bufp
= alloca (rs
->remote_packet_size
);
1871 int n
= 0; /* position in display_buf */
1873 if (remote_desc
== 0) /* paranoia */
1874 internal_error (__FILE__
, __LINE__
,
1875 _("remote_threads_extra_info"));
1877 if (use_threadextra_query
)
1879 sprintf (bufp
, "qThreadExtraInfo,%x", PIDGET (tp
->ptid
));
1881 getpkt (bufp
, (rs
->remote_packet_size
), 0);
1884 n
= min (strlen (bufp
) / 2, sizeof (display_buf
));
1885 result
= hex2bin (bufp
, display_buf
, n
);
1886 display_buf
[result
] = '\0';
1891 /* If the above query fails, fall back to the old method. */
1892 use_threadextra_query
= 0;
1893 set
= TAG_THREADID
| TAG_EXISTS
| TAG_THREADNAME
1894 | TAG_MOREDISPLAY
| TAG_DISPLAY
;
1895 int_to_threadref (&id
, PIDGET (tp
->ptid
));
1896 if (remote_get_threadinfo (&id
, set
, &threadinfo
))
1897 if (threadinfo
.active
)
1899 if (*threadinfo
.shortname
)
1900 n
+= sprintf(&display_buf
[0], " Name: %s,", threadinfo
.shortname
);
1901 if (*threadinfo
.display
)
1902 n
+= sprintf(&display_buf
[n
], " State: %s,", threadinfo
.display
);
1903 if (*threadinfo
.more_display
)
1904 n
+= sprintf(&display_buf
[n
], " Priority: %s",
1905 threadinfo
.more_display
);
1909 /* For purely cosmetic reasons, clear up trailing commas. */
1910 if (',' == display_buf
[n
-1])
1911 display_buf
[n
-1] = ' ';
1920 /* Restart the remote side; this is an extended protocol operation. */
1923 extended_remote_restart (void)
1925 struct remote_state
*rs
= get_remote_state ();
1926 char *buf
= alloca (rs
->remote_packet_size
);
1928 /* Send the restart command; for reasons I don't understand the
1929 remote side really expects a number after the "R". */
1931 sprintf (&buf
[1], "%x", 0);
1934 /* Now query for status so this looks just like we restarted
1935 gdbserver from scratch. */
1937 getpkt (buf
, (rs
->remote_packet_size
), 0);
1940 /* Clean up connection to a remote debugger. */
1943 remote_close (int quitting
)
1946 serial_close (remote_desc
);
1950 /* Query the remote side for the text, data and bss offsets. */
1955 struct remote_state
*rs
= get_remote_state ();
1956 char *buf
= alloca (rs
->remote_packet_size
);
1959 CORE_ADDR text_addr
, data_addr
, bss_addr
;
1960 struct section_offsets
*offs
;
1962 putpkt ("qOffsets");
1964 getpkt (buf
, (rs
->remote_packet_size
), 0);
1966 if (buf
[0] == '\000')
1967 return; /* Return silently. Stub doesn't support
1971 warning (_("Remote failure reply: %s"), buf
);
1975 /* Pick up each field in turn. This used to be done with scanf, but
1976 scanf will make trouble if CORE_ADDR size doesn't match
1977 conversion directives correctly. The following code will work
1978 with any size of CORE_ADDR. */
1979 text_addr
= data_addr
= bss_addr
= 0;
1983 if (strncmp (ptr
, "Text=", 5) == 0)
1986 /* Don't use strtol, could lose on big values. */
1987 while (*ptr
&& *ptr
!= ';')
1988 text_addr
= (text_addr
<< 4) + fromhex (*ptr
++);
1993 if (!lose
&& strncmp (ptr
, ";Data=", 6) == 0)
1996 while (*ptr
&& *ptr
!= ';')
1997 data_addr
= (data_addr
<< 4) + fromhex (*ptr
++);
2002 if (!lose
&& strncmp (ptr
, ";Bss=", 5) == 0)
2005 while (*ptr
&& *ptr
!= ';')
2006 bss_addr
= (bss_addr
<< 4) + fromhex (*ptr
++);
2012 error (_("Malformed response to offset query, %s"), buf
);
2014 if (symfile_objfile
== NULL
)
2017 offs
= ((struct section_offsets
*)
2018 alloca (SIZEOF_N_SECTION_OFFSETS (symfile_objfile
->num_sections
)));
2019 memcpy (offs
, symfile_objfile
->section_offsets
,
2020 SIZEOF_N_SECTION_OFFSETS (symfile_objfile
->num_sections
));
2022 offs
->offsets
[SECT_OFF_TEXT (symfile_objfile
)] = text_addr
;
2024 /* This is a temporary kludge to force data and bss to use the same offsets
2025 because that's what nlmconv does now. The real solution requires changes
2026 to the stub and remote.c that I don't have time to do right now. */
2028 offs
->offsets
[SECT_OFF_DATA (symfile_objfile
)] = data_addr
;
2029 offs
->offsets
[SECT_OFF_BSS (symfile_objfile
)] = data_addr
;
2031 objfile_relocate (symfile_objfile
, offs
);
2034 /* Stub for catch_errors. */
2037 remote_start_remote_dummy (struct ui_out
*uiout
, void *dummy
)
2039 start_remote (); /* Initialize gdb process mechanisms. */
2040 /* NOTE: Return something >=0. A -ve value is reserved for
2041 catch_exceptions. */
2046 remote_start_remote (struct ui_out
*uiout
, void *dummy
)
2048 immediate_quit
++; /* Allow user to interrupt it. */
2050 /* Ack any packet which the remote side has already sent. */
2051 serial_write (remote_desc
, "+", 1);
2053 /* Let the stub know that we want it to return the thread. */
2056 inferior_ptid
= remote_current_thread (inferior_ptid
);
2058 get_offsets (); /* Get text, data & bss offsets. */
2060 putpkt ("?"); /* Initiate a query from remote machine. */
2063 remote_start_remote_dummy (uiout
, dummy
);
2066 /* Open a connection to a remote debugger.
2067 NAME is the filename used for communication. */
2070 remote_open (char *name
, int from_tty
)
2072 remote_open_1 (name
, from_tty
, &remote_ops
, 0, 0);
2075 /* Just like remote_open, but with asynchronous support. */
2077 remote_async_open (char *name
, int from_tty
)
2079 remote_open_1 (name
, from_tty
, &remote_async_ops
, 0, 1);
2082 /* Open a connection to a remote debugger using the extended
2083 remote gdb protocol. NAME is the filename used for communication. */
2086 extended_remote_open (char *name
, int from_tty
)
2088 remote_open_1 (name
, from_tty
, &extended_remote_ops
, 1 /*extended_p */,
2092 /* Just like extended_remote_open, but with asynchronous support. */
2094 extended_remote_async_open (char *name
, int from_tty
)
2096 remote_open_1 (name
, from_tty
, &extended_async_remote_ops
,
2097 1 /*extended_p */, 1 /* async_p */);
2100 /* Generic code for opening a connection to a remote target. */
2103 init_all_packet_configs (void)
2106 update_packet_config (&remote_protocol_P
);
2107 update_packet_config (&remote_protocol_p
);
2108 update_packet_config (&remote_protocol_qSymbol
);
2109 update_packet_config (&remote_protocol_vcont
);
2110 for (i
= 0; i
< NR_Z_PACKET_TYPES
; i
++)
2111 update_packet_config (&remote_protocol_Z
[i
]);
2112 /* Force remote_write_bytes to check whether target supports binary
2114 update_packet_config (&remote_protocol_binary_download
);
2115 update_packet_config (&remote_protocol_qPart_auxv
);
2116 update_packet_config (&remote_protocol_qGetTLSAddr
);
2119 /* Symbol look-up. */
2122 remote_check_symbols (struct objfile
*objfile
)
2124 struct remote_state
*rs
= get_remote_state ();
2125 char *msg
, *reply
, *tmp
;
2126 struct minimal_symbol
*sym
;
2129 if (remote_protocol_qSymbol
.support
== PACKET_DISABLE
)
2132 msg
= alloca (rs
->remote_packet_size
);
2133 reply
= alloca (rs
->remote_packet_size
);
2135 /* Invite target to request symbol lookups. */
2137 putpkt ("qSymbol::");
2138 getpkt (reply
, (rs
->remote_packet_size
), 0);
2139 packet_ok (reply
, &remote_protocol_qSymbol
);
2141 while (strncmp (reply
, "qSymbol:", 8) == 0)
2144 end
= hex2bin (tmp
, msg
, strlen (tmp
) / 2);
2146 sym
= lookup_minimal_symbol (msg
, NULL
, NULL
);
2148 sprintf (msg
, "qSymbol::%s", &reply
[8]);
2150 sprintf (msg
, "qSymbol:%s:%s",
2151 paddr_nz (SYMBOL_VALUE_ADDRESS (sym
)),
2154 getpkt (reply
, (rs
->remote_packet_size
), 0);
2158 static struct serial
*
2159 remote_serial_open (char *name
)
2161 static int udp_warning
= 0;
2163 /* FIXME: Parsing NAME here is a hack. But we want to warn here instead
2164 of in ser-tcp.c, because it is the remote protocol assuming that the
2165 serial connection is reliable and not the serial connection promising
2167 if (!udp_warning
&& strncmp (name
, "udp:", 4) == 0)
2170 The remote protocol may be unreliable over UDP.\n\
2171 Some events may be lost, rendering further debugging impossible."));
2175 return serial_open (name
);
2179 remote_open_1 (char *name
, int from_tty
, struct target_ops
*target
,
2180 int extended_p
, int async_p
)
2182 struct exception ex
;
2183 struct remote_state
*rs
= get_remote_state ();
2185 error (_("To open a remote debug connection, you need to specify what\n"
2186 "serial device is attached to the remote system\n"
2187 "(e.g. /dev/ttyS0, /dev/ttya, COM1, etc.)."));
2189 /* See FIXME above. */
2191 wait_forever_enabled_p
= 1;
2193 reopen_exec_file ();
2196 target_preopen (from_tty
);
2198 unpush_target (target
);
2200 remote_desc
= remote_serial_open (name
);
2202 perror_with_name (name
);
2204 if (baud_rate
!= -1)
2206 if (serial_setbaudrate (remote_desc
, baud_rate
))
2208 /* The requested speed could not be set. Error out to
2209 top level after closing remote_desc. Take care to
2210 set remote_desc to NULL to avoid closing remote_desc
2212 serial_close (remote_desc
);
2214 perror_with_name (name
);
2218 serial_raw (remote_desc
);
2220 /* If there is something sitting in the buffer we might take it as a
2221 response to a command, which would be bad. */
2222 serial_flush_input (remote_desc
);
2226 puts_filtered ("Remote debugging using ");
2227 puts_filtered (name
);
2228 puts_filtered ("\n");
2230 push_target (target
); /* Switch to using remote target now. */
2232 init_all_packet_configs ();
2234 general_thread
= -2;
2235 continue_thread
= -2;
2237 /* Probe for ability to use "ThreadInfo" query, as required. */
2238 use_threadinfo_query
= 1;
2239 use_threadextra_query
= 1;
2241 /* Without this, some commands which require an active target (such
2242 as kill) won't work. This variable serves (at least) double duty
2243 as both the pid of the target process (if it has such), and as a
2244 flag indicating that a target is active. These functions should
2245 be split out into seperate variables, especially since GDB will
2246 someday have a notion of debugging several processes. */
2248 inferior_ptid
= pid_to_ptid (MAGIC_NULL_PID
);
2252 /* With this target we start out by owning the terminal. */
2253 remote_async_terminal_ours_p
= 1;
2255 /* FIXME: cagney/1999-09-23: During the initial connection it is
2256 assumed that the target is already ready and able to respond to
2257 requests. Unfortunately remote_start_remote() eventually calls
2258 wait_for_inferior() with no timeout. wait_forever_enabled_p gets
2259 around this. Eventually a mechanism that allows
2260 wait_for_inferior() to expect/get timeouts will be
2262 wait_forever_enabled_p
= 0;
2265 #ifdef SOLIB_CREATE_INFERIOR_HOOK
2266 /* First delete any symbols previously loaded from shared libraries. */
2267 no_shared_libraries (NULL
, 0);
2270 /* Start the remote connection. If error() or QUIT, discard this
2271 target (we'd otherwise be in an inconsistent state) and then
2272 propogate the error on up the exception chain. This ensures that
2273 the caller doesn't stumble along blindly assuming that the
2274 function succeeded. The CLI doesn't have this problem but other
2275 UI's, such as MI do.
2277 FIXME: cagney/2002-05-19: Instead of re-throwing the exception,
2278 this function should return an error indication letting the
2279 caller restore the previous state. Unfortunately the command
2280 ``target remote'' is directly wired to this function making that
2281 impossible. On a positive note, the CLI side of this problem has
2282 been fixed - the function set_cmd_context() makes it possible for
2283 all the ``target ....'' commands to share a common callback
2284 function. See cli-dump.c. */
2285 ex
= catch_exception (uiout
, remote_start_remote
, NULL
, RETURN_MASK_ALL
);
2290 wait_forever_enabled_p
= 1;
2291 throw_exception (ex
);
2295 wait_forever_enabled_p
= 1;
2299 /* Tell the remote that we are using the extended protocol. */
2300 char *buf
= alloca (rs
->remote_packet_size
);
2302 getpkt (buf
, (rs
->remote_packet_size
), 0);
2304 #ifdef SOLIB_CREATE_INFERIOR_HOOK
2305 /* FIXME: need a master target_open vector from which all
2306 remote_opens can be called, so that stuff like this can
2307 go there. Failing that, the following code must be copied
2308 to the open function for any remote target that wants to
2309 support svr4 shared libraries. */
2311 /* Set up to detect and load shared libraries. */
2312 if (exec_bfd
) /* No use without an exec file. */
2314 SOLIB_CREATE_INFERIOR_HOOK (PIDGET (inferior_ptid
));
2315 remote_check_symbols (symfile_objfile
);
2319 observer_notify_inferior_created (¤t_target
, from_tty
);
2322 /* This takes a program previously attached to and detaches it. After
2323 this is done, GDB can be used to debug some other program. We
2324 better not have left any breakpoints in the target program or it'll
2325 die when it hits one. */
2328 remote_detach (char *args
, int from_tty
)
2330 struct remote_state
*rs
= get_remote_state ();
2331 char *buf
= alloca (rs
->remote_packet_size
);
2334 error (_("Argument given to \"detach\" when remotely debugging."));
2336 /* Tell the remote target to detach. */
2338 remote_send (buf
, (rs
->remote_packet_size
));
2340 /* Unregister the file descriptor from the event loop. */
2341 if (target_is_async_p ())
2342 serial_async (remote_desc
, NULL
, 0);
2344 target_mourn_inferior ();
2346 puts_filtered ("Ending remote debugging.\n");
2349 /* Same as remote_detach, but don't send the "D" packet; just disconnect. */
2352 remote_disconnect (char *args
, int from_tty
)
2355 error (_("Argument given to \"detach\" when remotely debugging."));
2357 /* Unregister the file descriptor from the event loop. */
2358 if (target_is_async_p ())
2359 serial_async (remote_desc
, NULL
, 0);
2361 target_mourn_inferior ();
2363 puts_filtered ("Ending remote debugging.\n");
2366 /* Convert hex digit A to a number. */
2371 if (a
>= '0' && a
<= '9')
2373 else if (a
>= 'a' && a
<= 'f')
2374 return a
- 'a' + 10;
2375 else if (a
>= 'A' && a
<= 'F')
2376 return a
- 'A' + 10;
2378 error (_("Reply contains invalid hex digit %d"), a
);
2382 hex2bin (const char *hex
, char *bin
, int count
)
2386 for (i
= 0; i
< count
; i
++)
2388 if (hex
[0] == 0 || hex
[1] == 0)
2390 /* Hex string is short, or of uneven length.
2391 Return the count that has been converted so far. */
2394 *bin
++ = fromhex (hex
[0]) * 16 + fromhex (hex
[1]);
2400 /* Convert number NIB to a hex digit. */
2408 return 'a' + nib
- 10;
2412 bin2hex (const char *bin
, char *hex
, int count
)
2415 /* May use a length, or a nul-terminated string as input. */
2417 count
= strlen (bin
);
2419 for (i
= 0; i
< count
; i
++)
2421 *hex
++ = tohex ((*bin
>> 4) & 0xf);
2422 *hex
++ = tohex (*bin
++ & 0xf);
2428 /* Check for the availability of vCont. This function should also check
2432 remote_vcont_probe (struct remote_state
*rs
, char *buf
)
2434 strcpy (buf
, "vCont?");
2436 getpkt (buf
, rs
->remote_packet_size
, 0);
2438 /* Make sure that the features we assume are supported. */
2439 if (strncmp (buf
, "vCont", 5) == 0)
2442 int support_s
, support_S
, support_c
, support_C
;
2448 while (p
&& *p
== ';')
2451 if (*p
== 's' && (*(p
+ 1) == ';' || *(p
+ 1) == 0))
2453 else if (*p
== 'S' && (*(p
+ 1) == ';' || *(p
+ 1) == 0))
2455 else if (*p
== 'c' && (*(p
+ 1) == ';' || *(p
+ 1) == 0))
2457 else if (*p
== 'C' && (*(p
+ 1) == ';' || *(p
+ 1) == 0))
2460 p
= strchr (p
, ';');
2463 /* If s, S, c, and C are not all supported, we can't use vCont. Clearing
2464 BUF will make packet_ok disable the packet. */
2465 if (!support_s
|| !support_S
|| !support_c
|| !support_C
)
2469 packet_ok (buf
, &remote_protocol_vcont
);
2472 /* Resume the remote inferior by using a "vCont" packet. The thread
2473 to be resumed is PTID; STEP and SIGGNAL indicate whether the
2474 resumed thread should be single-stepped and/or signalled. If PTID's
2475 PID is -1, then all threads are resumed; the thread to be stepped and/or
2476 signalled is given in the global INFERIOR_PTID. This function returns
2477 non-zero iff it resumes the inferior.
2479 This function issues a strict subset of all possible vCont commands at the
2483 remote_vcont_resume (ptid_t ptid
, int step
, enum target_signal siggnal
)
2485 struct remote_state
*rs
= get_remote_state ();
2486 int pid
= PIDGET (ptid
);
2487 char *buf
= NULL
, *outbuf
;
2488 struct cleanup
*old_cleanup
;
2490 buf
= xmalloc (rs
->remote_packet_size
);
2491 old_cleanup
= make_cleanup (xfree
, buf
);
2493 if (remote_protocol_vcont
.support
== PACKET_SUPPORT_UNKNOWN
)
2494 remote_vcont_probe (rs
, buf
);
2496 if (remote_protocol_vcont
.support
== PACKET_DISABLE
)
2498 do_cleanups (old_cleanup
);
2502 /* If we could generate a wider range of packets, we'd have to worry
2503 about overflowing BUF. Should there be a generic
2504 "multi-part-packet" packet? */
2506 if (PIDGET (inferior_ptid
) == MAGIC_NULL_PID
)
2508 /* MAGIC_NULL_PTID means that we don't have any active threads, so we
2509 don't have any PID numbers the inferior will understand. Make sure
2510 to only send forms that do not specify a PID. */
2511 if (step
&& siggnal
!= TARGET_SIGNAL_0
)
2512 outbuf
= xstrprintf ("vCont;S%02x", siggnal
);
2514 outbuf
= xstrprintf ("vCont;s");
2515 else if (siggnal
!= TARGET_SIGNAL_0
)
2516 outbuf
= xstrprintf ("vCont;C%02x", siggnal
);
2518 outbuf
= xstrprintf ("vCont;c");
2522 /* Resume all threads, with preference for INFERIOR_PTID. */
2523 if (step
&& siggnal
!= TARGET_SIGNAL_0
)
2524 outbuf
= xstrprintf ("vCont;S%02x:%x;c", siggnal
,
2525 PIDGET (inferior_ptid
));
2527 outbuf
= xstrprintf ("vCont;s:%x;c", PIDGET (inferior_ptid
));
2528 else if (siggnal
!= TARGET_SIGNAL_0
)
2529 outbuf
= xstrprintf ("vCont;C%02x:%x;c", siggnal
,
2530 PIDGET (inferior_ptid
));
2532 outbuf
= xstrprintf ("vCont;c");
2536 /* Scheduler locking; resume only PTID. */
2537 if (step
&& siggnal
!= TARGET_SIGNAL_0
)
2538 outbuf
= xstrprintf ("vCont;S%02x:%x", siggnal
, pid
);
2540 outbuf
= xstrprintf ("vCont;s:%x", pid
);
2541 else if (siggnal
!= TARGET_SIGNAL_0
)
2542 outbuf
= xstrprintf ("vCont;C%02x:%x", siggnal
, pid
);
2544 outbuf
= xstrprintf ("vCont;c:%x", pid
);
2547 gdb_assert (outbuf
&& strlen (outbuf
) < rs
->remote_packet_size
);
2548 make_cleanup (xfree
, outbuf
);
2552 do_cleanups (old_cleanup
);
2557 /* Tell the remote machine to resume. */
2559 static enum target_signal last_sent_signal
= TARGET_SIGNAL_0
;
2561 static int last_sent_step
;
2564 remote_resume (ptid_t ptid
, int step
, enum target_signal siggnal
)
2566 struct remote_state
*rs
= get_remote_state ();
2567 char *buf
= alloca (rs
->remote_packet_size
);
2568 int pid
= PIDGET (ptid
);
2570 last_sent_signal
= siggnal
;
2571 last_sent_step
= step
;
2573 /* A hook for when we need to do something at the last moment before
2575 if (deprecated_target_resume_hook
)
2576 (*deprecated_target_resume_hook
) ();
2578 /* The vCont packet doesn't need to specify threads via Hc. */
2579 if (remote_vcont_resume (ptid
, step
, siggnal
))
2582 /* All other supported resume packets do use Hc, so call set_thread. */
2584 set_thread (0, 0); /* Run any thread. */
2586 set_thread (pid
, 0); /* Run this thread. */
2588 if (siggnal
!= TARGET_SIGNAL_0
)
2590 buf
[0] = step
? 'S' : 'C';
2591 buf
[1] = tohex (((int) siggnal
>> 4) & 0xf);
2592 buf
[2] = tohex (((int) siggnal
) & 0xf);
2596 strcpy (buf
, step
? "s" : "c");
2601 /* Same as remote_resume, but with async support. */
2603 remote_async_resume (ptid_t ptid
, int step
, enum target_signal siggnal
)
2605 remote_resume (ptid
, step
, siggnal
);
2607 /* We are about to start executing the inferior, let's register it
2608 with the event loop. NOTE: this is the one place where all the
2609 execution commands end up. We could alternatively do this in each
2610 of the execution commands in infcmd.c. */
2611 /* FIXME: ezannoni 1999-09-28: We may need to move this out of here
2612 into infcmd.c in order to allow inferior function calls to work
2613 NOT asynchronously. */
2614 if (target_can_async_p ())
2615 target_async (inferior_event_handler
, 0);
2616 /* Tell the world that the target is now executing. */
2617 /* FIXME: cagney/1999-09-23: Is it the targets responsibility to set
2618 this? Instead, should the client of target just assume (for
2619 async targets) that the target is going to start executing? Is
2620 this information already found in the continuation block? */
2621 if (target_is_async_p ())
2622 target_executing
= 1;
2626 /* Set up the signal handler for SIGINT, while the target is
2627 executing, ovewriting the 'regular' SIGINT signal handler. */
2629 initialize_sigint_signal_handler (void)
2631 sigint_remote_token
=
2632 create_async_signal_handler (async_remote_interrupt
, NULL
);
2633 signal (SIGINT
, handle_remote_sigint
);
2636 /* Signal handler for SIGINT, while the target is executing. */
2638 handle_remote_sigint (int sig
)
2640 signal (sig
, handle_remote_sigint_twice
);
2641 sigint_remote_twice_token
=
2642 create_async_signal_handler (async_remote_interrupt_twice
, NULL
);
2643 mark_async_signal_handler_wrapper (sigint_remote_token
);
2646 /* Signal handler for SIGINT, installed after SIGINT has already been
2647 sent once. It will take effect the second time that the user sends
2650 handle_remote_sigint_twice (int sig
)
2652 signal (sig
, handle_sigint
);
2653 sigint_remote_twice_token
=
2654 create_async_signal_handler (inferior_event_handler_wrapper
, NULL
);
2655 mark_async_signal_handler_wrapper (sigint_remote_twice_token
);
2658 /* Perform the real interruption of the target execution, in response
2661 async_remote_interrupt (gdb_client_data arg
)
2664 fprintf_unfiltered (gdb_stdlog
, "remote_interrupt called\n");
2669 /* Perform interrupt, if the first attempt did not succeed. Just give
2670 up on the target alltogether. */
2672 async_remote_interrupt_twice (gdb_client_data arg
)
2675 fprintf_unfiltered (gdb_stdlog
, "remote_interrupt_twice called\n");
2676 /* Do something only if the target was not killed by the previous
2678 if (target_executing
)
2681 signal (SIGINT
, handle_remote_sigint
);
2685 /* Reinstall the usual SIGINT handlers, after the target has
2688 cleanup_sigint_signal_handler (void *dummy
)
2690 signal (SIGINT
, handle_sigint
);
2691 if (sigint_remote_twice_token
)
2692 delete_async_signal_handler ((struct async_signal_handler
**)
2693 &sigint_remote_twice_token
);
2694 if (sigint_remote_token
)
2695 delete_async_signal_handler ((struct async_signal_handler
**)
2696 &sigint_remote_token
);
2699 /* Send ^C to target to halt it. Target will respond, and send us a
2701 static void (*ofunc
) (int);
2703 /* The command line interface's stop routine. This function is installed
2704 as a signal handler for SIGINT. The first time a user requests a
2705 stop, we call remote_stop to send a break or ^C. If there is no
2706 response from the target (it didn't stop when the user requested it),
2707 we ask the user if he'd like to detach from the target. */
2709 remote_interrupt (int signo
)
2711 /* If this doesn't work, try more severe steps. */
2712 signal (signo
, remote_interrupt_twice
);
2715 fprintf_unfiltered (gdb_stdlog
, "remote_interrupt called\n");
2720 /* The user typed ^C twice. */
2723 remote_interrupt_twice (int signo
)
2725 signal (signo
, ofunc
);
2727 signal (signo
, remote_interrupt
);
2730 /* This is the generic stop called via the target vector. When a target
2731 interrupt is requested, either by the command line or the GUI, we
2732 will eventually end up here. */
2736 /* Send a break or a ^C, depending on user preference. */
2738 fprintf_unfiltered (gdb_stdlog
, "remote_stop called\n");
2741 serial_send_break (remote_desc
);
2743 serial_write (remote_desc
, "\003", 1);
2746 /* Ask the user what to do when an interrupt is received. */
2749 interrupt_query (void)
2751 target_terminal_ours ();
2753 if (query ("Interrupted while waiting for the program.\n\
2754 Give up (and stop debugging it)? "))
2756 target_mourn_inferior ();
2757 deprecated_throw_reason (RETURN_QUIT
);
2760 target_terminal_inferior ();
2763 /* Enable/disable target terminal ownership. Most targets can use
2764 terminal groups to control terminal ownership. Remote targets are
2765 different in that explicit transfer of ownership to/from GDB/target
2769 remote_async_terminal_inferior (void)
2771 /* FIXME: cagney/1999-09-27: Shouldn't need to test for
2772 sync_execution here. This function should only be called when
2773 GDB is resuming the inferior in the forground. A background
2774 resume (``run&'') should leave GDB in control of the terminal and
2775 consequently should not call this code. */
2776 if (!sync_execution
)
2778 /* FIXME: cagney/1999-09-27: Closely related to the above. Make
2779 calls target_terminal_*() idenpotent. The event-loop GDB talking
2780 to an asynchronous target with a synchronous command calls this
2781 function from both event-top.c and infrun.c/infcmd.c. Once GDB
2782 stops trying to transfer the terminal to the target when it
2783 shouldn't this guard can go away. */
2784 if (!remote_async_terminal_ours_p
)
2786 delete_file_handler (input_fd
);
2787 remote_async_terminal_ours_p
= 0;
2788 initialize_sigint_signal_handler ();
2789 /* NOTE: At this point we could also register our selves as the
2790 recipient of all input. Any characters typed could then be
2791 passed on down to the target. */
2795 remote_async_terminal_ours (void)
2797 /* See FIXME in remote_async_terminal_inferior. */
2798 if (!sync_execution
)
2800 /* See FIXME in remote_async_terminal_inferior. */
2801 if (remote_async_terminal_ours_p
)
2803 cleanup_sigint_signal_handler (NULL
);
2804 add_file_handler (input_fd
, stdin_event_handler
, 0);
2805 remote_async_terminal_ours_p
= 1;
2808 /* If nonzero, ignore the next kill. */
2813 remote_console_output (char *msg
)
2817 for (p
= msg
; p
[0] && p
[1]; p
+= 2)
2820 char c
= fromhex (p
[0]) * 16 + fromhex (p
[1]);
2823 fputs_unfiltered (tb
, gdb_stdtarg
);
2825 gdb_flush (gdb_stdtarg
);
2828 /* Wait until the remote machine stops, then return,
2829 storing status in STATUS just as `wait' would.
2830 Returns "pid", which in the case of a multi-threaded
2831 remote OS, is the thread-id. */
2834 remote_wait (ptid_t ptid
, struct target_waitstatus
*status
)
2836 struct remote_state
*rs
= get_remote_state ();
2837 unsigned char *buf
= alloca (rs
->remote_packet_size
);
2838 ULONGEST thread_num
= -1;
2841 status
->kind
= TARGET_WAITKIND_EXITED
;
2842 status
->value
.integer
= 0;
2848 ofunc
= signal (SIGINT
, remote_interrupt
);
2849 getpkt (buf
, (rs
->remote_packet_size
), 1);
2850 signal (SIGINT
, ofunc
);
2852 /* This is a hook for when we need to do something (perhaps the
2853 collection of trace data) every time the target stops. */
2854 if (deprecated_target_wait_loop_hook
)
2855 (*deprecated_target_wait_loop_hook
) ();
2857 remote_stopped_by_watchpoint_p
= 0;
2861 case 'E': /* Error of some sort. */
2862 warning (_("Remote failure reply: %s"), buf
);
2864 case 'F': /* File-I/O request. */
2865 remote_fileio_request (buf
);
2867 case 'T': /* Status with PC, SP, FP, ... */
2869 char regs
[MAX_REGISTER_SIZE
];
2871 /* Expedited reply, containing Signal, {regno, reg} repeat. */
2872 /* format is: 'Tssn...:r...;n...:r...;n...:r...;#cc', where
2874 n... = register number
2875 r... = register contents
2877 p
= &buf
[3]; /* after Txx */
2886 /* If the packet contains a register number save it in
2887 pnum and set p1 to point to the character following
2888 it. Otherwise p1 points to p. */
2890 /* If this packet is an awatch packet, don't parse the
2891 'a' as a register number. */
2893 if (strncmp (p
, "awatch", strlen("awatch")) != 0)
2895 /* Read the ``P'' register number. */
2896 pnum
= strtol (p
, &p_temp
, 16);
2897 p1
= (unsigned char *) p_temp
;
2902 if (p1
== p
) /* No register number present here. */
2904 p1
= (unsigned char *) strchr (p
, ':');
2906 warning (_("Malformed packet(a) (missing colon): %s\n\
2909 if (strncmp (p
, "thread", p1
- p
) == 0)
2911 p_temp
= unpack_varlen_hex (++p1
, &thread_num
);
2912 record_currthread (thread_num
);
2913 p
= (unsigned char *) p_temp
;
2915 else if ((strncmp (p
, "watch", p1
- p
) == 0)
2916 || (strncmp (p
, "rwatch", p1
- p
) == 0)
2917 || (strncmp (p
, "awatch", p1
- p
) == 0))
2919 remote_stopped_by_watchpoint_p
= 1;
2920 p
= unpack_varlen_hex (++p1
, &addr
);
2921 remote_watch_data_address
= (CORE_ADDR
)addr
;
2925 /* Silently skip unknown optional info. */
2926 p_temp
= strchr (p1
+ 1, ';');
2928 p
= (unsigned char *) p_temp
;
2933 struct packet_reg
*reg
= packet_reg_from_pnum (rs
, pnum
);
2937 error (_("Malformed packet(b) (missing colon): %s\n\
2942 error (_("Remote sent bad register number %s: %s\n\
2944 phex_nz (pnum
, 0), p
, buf
);
2946 fieldsize
= hex2bin (p
, regs
,
2947 register_size (current_gdbarch
,
2950 if (fieldsize
< register_size (current_gdbarch
,
2952 warning (_("Remote reply is too short: %s"), buf
);
2953 regcache_raw_supply (current_regcache
,
2958 error (_("Remote register badly formatted: %s\nhere: %s"),
2963 case 'S': /* Old style status, just signal only. */
2964 status
->kind
= TARGET_WAITKIND_STOPPED
;
2965 status
->value
.sig
= (enum target_signal
)
2966 (((fromhex (buf
[1])) << 4) + (fromhex (buf
[2])));
2970 thread_num
= strtol ((const char *) &buf
[4], NULL
, 16);
2971 record_currthread (thread_num
);
2974 case 'W': /* Target exited. */
2976 /* The remote process exited. */
2977 status
->kind
= TARGET_WAITKIND_EXITED
;
2978 status
->value
.integer
= (fromhex (buf
[1]) << 4) + fromhex (buf
[2]);
2982 status
->kind
= TARGET_WAITKIND_SIGNALLED
;
2983 status
->value
.sig
= (enum target_signal
)
2984 (((fromhex (buf
[1])) << 4) + (fromhex (buf
[2])));
2988 case 'O': /* Console output. */
2989 remote_console_output (buf
+ 1);
2992 if (last_sent_signal
!= TARGET_SIGNAL_0
)
2994 /* Zero length reply means that we tried 'S' or 'C' and
2995 the remote system doesn't support it. */
2996 target_terminal_ours_for_output ();
2998 ("Can't send signals to this remote system. %s not sent.\n",
2999 target_signal_to_name (last_sent_signal
));
3000 last_sent_signal
= TARGET_SIGNAL_0
;
3001 target_terminal_inferior ();
3003 strcpy ((char *) buf
, last_sent_step
? "s" : "c");
3004 putpkt ((char *) buf
);
3007 /* else fallthrough */
3009 warning (_("Invalid remote reply: %s"), buf
);
3014 if (thread_num
!= -1)
3016 return pid_to_ptid (thread_num
);
3018 return inferior_ptid
;
3021 /* Async version of remote_wait. */
3023 remote_async_wait (ptid_t ptid
, struct target_waitstatus
*status
)
3025 struct remote_state
*rs
= get_remote_state ();
3026 unsigned char *buf
= alloca (rs
->remote_packet_size
);
3027 ULONGEST thread_num
= -1;
3030 status
->kind
= TARGET_WAITKIND_EXITED
;
3031 status
->value
.integer
= 0;
3033 remote_stopped_by_watchpoint_p
= 0;
3039 if (!target_is_async_p ())
3040 ofunc
= signal (SIGINT
, remote_interrupt
);
3041 /* FIXME: cagney/1999-09-27: If we're in async mode we should
3042 _never_ wait for ever -> test on target_is_async_p().
3043 However, before we do that we need to ensure that the caller
3044 knows how to take the target into/out of async mode. */
3045 getpkt (buf
, (rs
->remote_packet_size
), wait_forever_enabled_p
);
3046 if (!target_is_async_p ())
3047 signal (SIGINT
, ofunc
);
3049 /* This is a hook for when we need to do something (perhaps the
3050 collection of trace data) every time the target stops. */
3051 if (deprecated_target_wait_loop_hook
)
3052 (*deprecated_target_wait_loop_hook
) ();
3056 case 'E': /* Error of some sort. */
3057 warning (_("Remote failure reply: %s"), buf
);
3059 case 'F': /* File-I/O request. */
3060 remote_fileio_request (buf
);
3062 case 'T': /* Status with PC, SP, FP, ... */
3064 char regs
[MAX_REGISTER_SIZE
];
3066 /* Expedited reply, containing Signal, {regno, reg} repeat. */
3067 /* format is: 'Tssn...:r...;n...:r...;n...:r...;#cc', where
3069 n... = register number
3070 r... = register contents
3072 p
= &buf
[3]; /* after Txx */
3081 /* If the packet contains a register number, save it
3082 in pnum and set p1 to point to the character
3083 following it. Otherwise p1 points to p. */
3085 /* If this packet is an awatch packet, don't parse the 'a'
3086 as a register number. */
3088 if (!strncmp (p
, "awatch", strlen ("awatch")) != 0)
3090 /* Read the register number. */
3091 pnum
= strtol (p
, &p_temp
, 16);
3092 p1
= (unsigned char *) p_temp
;
3097 if (p1
== p
) /* No register number present here. */
3099 p1
= (unsigned char *) strchr (p
, ':');
3101 error (_("Malformed packet(a) (missing colon): %s\n\
3104 if (strncmp (p
, "thread", p1
- p
) == 0)
3106 p_temp
= unpack_varlen_hex (++p1
, &thread_num
);
3107 record_currthread (thread_num
);
3108 p
= (unsigned char *) p_temp
;
3110 else if ((strncmp (p
, "watch", p1
- p
) == 0)
3111 || (strncmp (p
, "rwatch", p1
- p
) == 0)
3112 || (strncmp (p
, "awatch", p1
- p
) == 0))
3114 remote_stopped_by_watchpoint_p
= 1;
3115 p
= unpack_varlen_hex (++p1
, &addr
);
3116 remote_watch_data_address
= (CORE_ADDR
)addr
;
3120 /* Silently skip unknown optional info. */
3121 p_temp
= (unsigned char *) strchr (p1
+ 1, ';');
3129 struct packet_reg
*reg
= packet_reg_from_pnum (rs
, pnum
);
3132 error (_("Malformed packet(b) (missing colon): %s\n\
3137 error (_("Remote sent bad register number %ld: %s\n\
3141 fieldsize
= hex2bin (p
, regs
,
3142 register_size (current_gdbarch
,
3145 if (fieldsize
< register_size (current_gdbarch
,
3147 warning (_("Remote reply is too short: %s"), buf
);
3148 regcache_raw_supply (current_regcache
, reg
->regnum
, regs
);
3152 error (_("Remote register badly formatted: %s\nhere: %s"),
3157 case 'S': /* Old style status, just signal only. */
3158 status
->kind
= TARGET_WAITKIND_STOPPED
;
3159 status
->value
.sig
= (enum target_signal
)
3160 (((fromhex (buf
[1])) << 4) + (fromhex (buf
[2])));
3164 thread_num
= strtol ((const char *) &buf
[4], NULL
, 16);
3165 record_currthread (thread_num
);
3168 case 'W': /* Target exited. */
3170 /* The remote process exited. */
3171 status
->kind
= TARGET_WAITKIND_EXITED
;
3172 status
->value
.integer
= (fromhex (buf
[1]) << 4) + fromhex (buf
[2]);
3176 status
->kind
= TARGET_WAITKIND_SIGNALLED
;
3177 status
->value
.sig
= (enum target_signal
)
3178 (((fromhex (buf
[1])) << 4) + (fromhex (buf
[2])));
3182 case 'O': /* Console output. */
3183 remote_console_output (buf
+ 1);
3184 /* Return immediately to the event loop. The event loop will
3185 still be waiting on the inferior afterwards. */
3186 status
->kind
= TARGET_WAITKIND_IGNORE
;
3189 if (last_sent_signal
!= TARGET_SIGNAL_0
)
3191 /* Zero length reply means that we tried 'S' or 'C' and
3192 the remote system doesn't support it. */
3193 target_terminal_ours_for_output ();
3195 ("Can't send signals to this remote system. %s not sent.\n",
3196 target_signal_to_name (last_sent_signal
));
3197 last_sent_signal
= TARGET_SIGNAL_0
;
3198 target_terminal_inferior ();
3200 strcpy ((char *) buf
, last_sent_step
? "s" : "c");
3201 putpkt ((char *) buf
);
3204 /* else fallthrough */
3206 warning (_("Invalid remote reply: %s"), buf
);
3211 if (thread_num
!= -1)
3213 return pid_to_ptid (thread_num
);
3215 return inferior_ptid
;
3218 /* Number of bytes of registers this stub implements. */
3220 static int register_bytes_found
;
3222 /* Read the remote registers into the block REGS. */
3223 /* Currently we just read all the registers, so we don't use regnum. */
3226 fetch_register_using_p (int regnum
)
3228 struct remote_state
*rs
= get_remote_state ();
3229 char *buf
= alloca (rs
->remote_packet_size
), *p
;
3230 char regp
[MAX_REGISTER_SIZE
];
3235 p
+= hexnumstr (p
, regnum
);
3237 remote_send (buf
, rs
->remote_packet_size
);
3239 /* If the stub didn't recognize the packet, or if we got an error,
3241 if (buf
[0] == '\0' || buf
[0] == 'E')
3244 /* If this register is unfetchable, tell the regcache. */
3247 regcache_raw_supply (current_regcache
, regnum
, NULL
);
3248 set_register_cached (regnum
, -1);
3252 /* Otherwise, parse and supply the value. */
3259 error (_("fetch_register_using_p: early buf termination"));
3263 regp
[i
++] = fromhex (p
[0]) * 16 + fromhex (p
[1]);
3266 regcache_raw_supply (current_regcache
, regnum
, regp
);
3271 remote_fetch_registers (int regnum
)
3273 struct remote_state
*rs
= get_remote_state ();
3274 char *buf
= alloca (rs
->remote_packet_size
);
3277 char *regs
= alloca (rs
->sizeof_g_packet
);
3279 set_thread (PIDGET (inferior_ptid
), 1);
3283 struct packet_reg
*reg
= packet_reg_from_regnum (rs
, regnum
);
3284 gdb_assert (reg
!= NULL
);
3285 if (!reg
->in_g_packet
)
3286 internal_error (__FILE__
, __LINE__
,
3287 _("Attempt to fetch a non G-packet register when this "
3288 "remote.c does not support the p-packet."));
3290 switch (remote_protocol_p
.support
)
3292 case PACKET_DISABLE
:
3295 if (fetch_register_using_p (regnum
))
3298 error (_("Protocol error: p packet not recognized by stub"));
3299 case PACKET_SUPPORT_UNKNOWN
:
3300 if (fetch_register_using_p (regnum
))
3302 /* The stub recognized the 'p' packet. Remember this. */
3303 remote_protocol_p
.support
= PACKET_ENABLE
;
3308 /* The stub does not support the 'P' packet. Use 'G'
3309 instead, and don't try using 'P' in the future (it
3310 will just waste our time). */
3311 remote_protocol_p
.support
= PACKET_DISABLE
;
3317 remote_send (buf
, (rs
->remote_packet_size
));
3319 /* Save the size of the packet sent to us by the target. Its used
3320 as a heuristic when determining the max size of packets that the
3321 target can safely receive. */
3322 if ((rs
->actual_register_packet_size
) == 0)
3323 (rs
->actual_register_packet_size
) = strlen (buf
);
3325 /* Unimplemented registers read as all bits zero. */
3326 memset (regs
, 0, rs
->sizeof_g_packet
);
3328 /* We can get out of synch in various cases. If the first character
3329 in the buffer is not a hex character, assume that has happened
3330 and try to fetch another packet to read. */
3331 while ((buf
[0] < '0' || buf
[0] > '9')
3332 && (buf
[0] < 'A' || buf
[0] > 'F')
3333 && (buf
[0] < 'a' || buf
[0] > 'f')
3334 && buf
[0] != 'x') /* New: unavailable register value. */
3337 fprintf_unfiltered (gdb_stdlog
,
3338 "Bad register packet; fetching a new packet\n");
3339 getpkt (buf
, (rs
->remote_packet_size
), 0);
3342 /* Reply describes registers byte by byte, each byte encoded as two
3343 hex characters. Suck them all up, then supply them to the
3344 register cacheing/storage mechanism. */
3347 for (i
= 0; i
< rs
->sizeof_g_packet
; i
++)
3353 warning (_("Remote reply is of odd length: %s"), buf
);
3354 /* Don't change register_bytes_found in this case, and don't
3355 print a second warning. */
3358 if (p
[0] == 'x' && p
[1] == 'x')
3359 regs
[i
] = 0; /* 'x' */
3361 regs
[i
] = fromhex (p
[0]) * 16 + fromhex (p
[1]);
3365 if (i
!= register_bytes_found
)
3367 register_bytes_found
= i
;
3368 if (REGISTER_BYTES_OK_P ()
3369 && !REGISTER_BYTES_OK (i
))
3370 warning (_("Remote reply is too short: %s"), buf
);
3376 for (i
= 0; i
< NUM_REGS
+ NUM_PSEUDO_REGS
; i
++)
3378 struct packet_reg
*r
= &rs
->regs
[i
];
3381 if (r
->offset
* 2 >= strlen (buf
))
3382 /* A short packet that didn't include the register's
3383 value, this implies that the register is zero (and
3384 not that the register is unavailable). Supply that
3386 regcache_raw_supply (current_regcache
, r
->regnum
, NULL
);
3387 else if (buf
[r
->offset
* 2] == 'x')
3389 gdb_assert (r
->offset
* 2 < strlen (buf
));
3390 /* The register isn't available, mark it as such (at
3391 the same time setting the value to zero). */
3392 regcache_raw_supply (current_regcache
, r
->regnum
, NULL
);
3393 set_register_cached (i
, -1);
3396 regcache_raw_supply (current_regcache
, r
->regnum
,
3403 /* Prepare to store registers. Since we may send them all (using a
3404 'G' request), we have to read out the ones we don't want to change
3408 remote_prepare_to_store (void)
3410 struct remote_state
*rs
= get_remote_state ();
3412 char buf
[MAX_REGISTER_SIZE
];
3414 /* Make sure the entire registers array is valid. */
3415 switch (remote_protocol_P
.support
)
3417 case PACKET_DISABLE
:
3418 case PACKET_SUPPORT_UNKNOWN
:
3419 /* Make sure all the necessary registers are cached. */
3420 for (i
= 0; i
< NUM_REGS
; i
++)
3421 if (rs
->regs
[i
].in_g_packet
)
3422 regcache_raw_read (current_regcache
, rs
->regs
[i
].regnum
, buf
);
3429 /* Helper: Attempt to store REGNUM using the P packet. Return fail IFF
3430 packet was not recognized. */
3433 store_register_using_P (int regnum
)
3435 struct remote_state
*rs
= get_remote_state ();
3436 struct packet_reg
*reg
= packet_reg_from_regnum (rs
, regnum
);
3437 /* Try storing a single register. */
3438 char *buf
= alloca (rs
->remote_packet_size
);
3439 char regp
[MAX_REGISTER_SIZE
];
3442 sprintf (buf
, "P%s=", phex_nz (reg
->pnum
, 0));
3443 p
= buf
+ strlen (buf
);
3444 regcache_raw_collect (current_regcache
, reg
->regnum
, regp
);
3445 bin2hex (regp
, p
, register_size (current_gdbarch
, reg
->regnum
));
3446 remote_send (buf
, rs
->remote_packet_size
);
3448 return buf
[0] != '\0';
3452 /* Store register REGNUM, or all registers if REGNUM == -1, from the
3453 contents of the register cache buffer. FIXME: ignores errors. */
3456 remote_store_registers (int regnum
)
3458 struct remote_state
*rs
= get_remote_state ();
3463 set_thread (PIDGET (inferior_ptid
), 1);
3467 switch (remote_protocol_P
.support
)
3469 case PACKET_DISABLE
:
3472 if (store_register_using_P (regnum
))
3475 error (_("Protocol error: P packet not recognized by stub"));
3476 case PACKET_SUPPORT_UNKNOWN
:
3477 if (store_register_using_P (regnum
))
3479 /* The stub recognized the 'P' packet. Remember this. */
3480 remote_protocol_P
.support
= PACKET_ENABLE
;
3485 /* The stub does not support the 'P' packet. Use 'G'
3486 instead, and don't try using 'P' in the future (it
3487 will just waste our time). */
3488 remote_protocol_P
.support
= PACKET_DISABLE
;
3494 /* Extract all the registers in the regcache copying them into a
3498 regs
= alloca (rs
->sizeof_g_packet
);
3499 memset (regs
, 0, rs
->sizeof_g_packet
);
3500 for (i
= 0; i
< NUM_REGS
+ NUM_PSEUDO_REGS
; i
++)
3502 struct packet_reg
*r
= &rs
->regs
[i
];
3504 regcache_raw_collect (current_regcache
, r
->regnum
, regs
+ r
->offset
);
3508 /* Command describes registers byte by byte,
3509 each byte encoded as two hex characters. */
3510 buf
= alloca (rs
->remote_packet_size
);
3513 /* remote_prepare_to_store insures that register_bytes_found gets set. */
3514 bin2hex (regs
, p
, register_bytes_found
);
3515 remote_send (buf
, (rs
->remote_packet_size
));
3519 /* Return the number of hex digits in num. */
3522 hexnumlen (ULONGEST num
)
3526 for (i
= 0; num
!= 0; i
++)
3532 /* Set BUF to the minimum number of hex digits representing NUM. */
3535 hexnumstr (char *buf
, ULONGEST num
)
3537 int len
= hexnumlen (num
);
3538 return hexnumnstr (buf
, num
, len
);
3542 /* Set BUF to the hex digits representing NUM, padded to WIDTH characters. */
3545 hexnumnstr (char *buf
, ULONGEST num
, int width
)
3551 for (i
= width
- 1; i
>= 0; i
--)
3553 buf
[i
] = "0123456789abcdef"[(num
& 0xf)];
3560 /* Mask all but the least significant REMOTE_ADDRESS_SIZE bits. */
3563 remote_address_masked (CORE_ADDR addr
)
3565 if (remote_address_size
> 0
3566 && remote_address_size
< (sizeof (ULONGEST
) * 8))
3568 /* Only create a mask when that mask can safely be constructed
3569 in a ULONGEST variable. */
3571 mask
= (mask
<< remote_address_size
) - 1;
3577 /* Determine whether the remote target supports binary downloading.
3578 This is accomplished by sending a no-op memory write of zero length
3579 to the target at the specified address. It does not suffice to send
3580 the whole packet, since many stubs strip the eighth bit and
3581 subsequently compute a wrong checksum, which causes real havoc with
3584 NOTE: This can still lose if the serial line is not eight-bit
3585 clean. In cases like this, the user should clear "remote
3589 check_binary_download (CORE_ADDR addr
)
3591 struct remote_state
*rs
= get_remote_state ();
3592 switch (remote_protocol_binary_download
.support
)
3594 case PACKET_DISABLE
:
3598 case PACKET_SUPPORT_UNKNOWN
:
3600 char *buf
= alloca (rs
->remote_packet_size
);
3605 p
+= hexnumstr (p
, (ULONGEST
) addr
);
3607 p
+= hexnumstr (p
, (ULONGEST
) 0);
3611 putpkt_binary (buf
, (int) (p
- buf
));
3612 getpkt (buf
, (rs
->remote_packet_size
), 0);
3617 fprintf_unfiltered (gdb_stdlog
,
3618 "binary downloading NOT suppported by target\n");
3619 remote_protocol_binary_download
.support
= PACKET_DISABLE
;
3624 fprintf_unfiltered (gdb_stdlog
,
3625 "binary downloading suppported by target\n");
3626 remote_protocol_binary_download
.support
= PACKET_ENABLE
;
3633 /* Write memory data directly to the remote machine.
3634 This does not inform the data cache; the data cache uses this.
3635 MEMADDR is the address in the remote memory space.
3636 MYADDR is the address of the buffer in our space.
3637 LEN is the number of bytes.
3639 Returns number of bytes transferred, or 0 (setting errno) for
3640 error. Only transfer a single packet. */
3643 remote_write_bytes (CORE_ADDR memaddr
, char *myaddr
, int len
)
3647 unsigned char *plen
;
3653 unsigned char *payload_start
;
3655 /* Verify that the target can support a binary download. */
3656 check_binary_download (memaddr
);
3658 payload_size
= get_memory_write_packet_size ();
3660 /* Compute the size, and then allocate space for the largest
3661 possible packet. Include space for an extra trailing NUL. */
3662 sizeof_buf
= payload_size
+ 1;
3663 buf
= alloca (sizeof_buf
);
3665 /* Compute the size of the actual payload by subtracting out the
3666 packet header and footer overhead: "$M<memaddr>,<len>:...#nn".
3668 payload_size
-= strlen ("$M,:#NN");
3669 payload_size
-= hexnumlen (memaddr
);
3671 /* Construct the packet header: "[MX]<memaddr>,<len>:". */
3673 /* Append "[XM]". Compute a best guess of the number of bytes
3674 actually transfered. */
3676 switch (remote_protocol_binary_download
.support
)
3680 /* Best guess at number of bytes that will fit. */
3681 todo
= min (len
, payload_size
);
3682 payload_size
-= hexnumlen (todo
);
3683 todo
= min (todo
, payload_size
);
3685 case PACKET_DISABLE
:
3687 /* Num bytes that will fit. */
3688 todo
= min (len
, payload_size
/ 2);
3689 payload_size
-= hexnumlen (todo
);
3690 todo
= min (todo
, payload_size
/ 2);
3692 case PACKET_SUPPORT_UNKNOWN
:
3693 internal_error (__FILE__
, __LINE__
,
3694 _("remote_write_bytes: bad internal state"));
3696 internal_error (__FILE__
, __LINE__
, _("bad switch"));
3699 internal_error (__FILE__
, __LINE__
,
3700 _("minumum packet size too small to write data"));
3702 /* Append "<memaddr>". */
3703 memaddr
= remote_address_masked (memaddr
);
3704 p
+= hexnumstr (p
, (ULONGEST
) memaddr
);
3709 /* Append <len>. Retain the location/size of <len>. It may need to
3710 be adjusted once the packet body has been created. */
3712 plenlen
= hexnumstr (p
, (ULONGEST
) todo
);
3719 /* Append the packet body. */
3721 switch (remote_protocol_binary_download
.support
)
3724 /* Binary mode. Send target system values byte by byte, in
3725 increasing byte addresses. Only escape certain critical
3728 (nr_bytes
< todo
) && (p
- payload_start
) < payload_size
;
3731 switch (myaddr
[nr_bytes
] & 0xff)
3736 /* These must be escaped. */
3738 *p
++ = (myaddr
[nr_bytes
] & 0xff) ^ 0x20;
3741 *p
++ = myaddr
[nr_bytes
] & 0xff;
3745 if (nr_bytes
< todo
)
3747 /* Escape chars have filled up the buffer prematurely,
3748 and we have actually sent fewer bytes than planned.
3749 Fix-up the length field of the packet. Use the same
3750 number of characters as before. */
3751 plen
+= hexnumnstr (plen
, (ULONGEST
) nr_bytes
, plenlen
);
3752 *plen
= ':'; /* overwrite \0 from hexnumnstr() */
3755 case PACKET_DISABLE
:
3756 /* Normal mode: Send target system values byte by byte, in
3757 increasing byte addresses. Each byte is encoded as a two hex
3759 nr_bytes
= bin2hex (myaddr
, p
, todo
);
3762 case PACKET_SUPPORT_UNKNOWN
:
3763 internal_error (__FILE__
, __LINE__
,
3764 _("remote_write_bytes: bad internal state"));
3766 internal_error (__FILE__
, __LINE__
, _("bad switch"));
3769 putpkt_binary (buf
, (int) (p
- buf
));
3770 getpkt (buf
, sizeof_buf
, 0);
3774 /* There is no correspondance between what the remote protocol
3775 uses for errors and errno codes. We would like a cleaner way
3776 of representing errors (big enough to include errno codes,
3777 bfd_error codes, and others). But for now just return EIO. */
3782 /* Return NR_BYTES, not TODO, in case escape chars caused us to send
3783 fewer bytes than we'd planned. */
3787 /* Read memory data directly from the remote machine.
3788 This does not use the data cache; the data cache uses this.
3789 MEMADDR is the address in the remote memory space.
3790 MYADDR is the address of the buffer in our space.
3791 LEN is the number of bytes.
3793 Returns number of bytes transferred, or 0 for error. */
3795 /* NOTE: cagney/1999-10-18: This function (and its siblings in other
3796 remote targets) shouldn't attempt to read the entire buffer.
3797 Instead it should read a single packet worth of data and then
3798 return the byte size of that packet to the caller. The caller (its
3799 caller and its callers caller ;-) already contains code for
3800 handling partial reads. */
3803 remote_read_bytes (CORE_ADDR memaddr
, char *myaddr
, int len
)
3806 int max_buf_size
; /* Max size of packet output buffer. */
3810 /* Create a buffer big enough for this packet. */
3811 max_buf_size
= get_memory_read_packet_size ();
3812 sizeof_buf
= max_buf_size
+ 1; /* Space for trailing NULL. */
3813 buf
= alloca (sizeof_buf
);
3822 todo
= min (len
, max_buf_size
/ 2); /* num bytes that will fit */
3824 /* construct "m"<memaddr>","<len>" */
3825 /* sprintf (buf, "m%lx,%x", (unsigned long) memaddr, todo); */
3826 memaddr
= remote_address_masked (memaddr
);
3829 p
+= hexnumstr (p
, (ULONGEST
) memaddr
);
3831 p
+= hexnumstr (p
, (ULONGEST
) todo
);
3835 getpkt (buf
, sizeof_buf
, 0);
3838 && isxdigit (buf
[1]) && isxdigit (buf
[2])
3841 /* There is no correspondance between what the remote
3842 protocol uses for errors and errno codes. We would like
3843 a cleaner way of representing errors (big enough to
3844 include errno codes, bfd_error codes, and others). But
3845 for now just return EIO. */
3850 /* Reply describes memory byte by byte,
3851 each byte encoded as two hex characters. */
3854 if ((i
= hex2bin (p
, myaddr
, todo
)) < todo
)
3856 /* Reply is short. This means that we were able to read
3857 only part of what we wanted to. */
3858 return i
+ (origlen
- len
);
3867 /* Read or write LEN bytes from inferior memory at MEMADDR,
3868 transferring to or from debugger address BUFFER. Write to inferior
3869 if SHOULD_WRITE is nonzero. Returns length of data written or
3870 read; 0 for error. TARGET is unused. */
3873 remote_xfer_memory (CORE_ADDR mem_addr
, char *buffer
, int mem_len
,
3874 int should_write
, struct mem_attrib
*attrib
,
3875 struct target_ops
*target
)
3877 CORE_ADDR targ_addr
;
3881 /* Should this be the selected frame? */
3882 gdbarch_remote_translate_xfer_address (current_gdbarch
,
3885 &targ_addr
, &targ_len
);
3890 res
= remote_write_bytes (targ_addr
, buffer
, targ_len
);
3892 res
= remote_read_bytes (targ_addr
, buffer
, targ_len
);
3898 remote_files_info (struct target_ops
*ignore
)
3900 puts_filtered ("Debugging a target over a serial line.\n");
3903 /* Stuff for dealing with the packets which are part of this protocol.
3904 See comment at top of file for details. */
3906 /* Read a single character from the remote end, masking it down to 7
3910 readchar (int timeout
)
3914 ch
= serial_readchar (remote_desc
, timeout
);
3919 switch ((enum serial_rc
) ch
)
3922 target_mourn_inferior ();
3923 error (_("Remote connection closed"));
3926 perror_with_name (_("Remote communication error"));
3928 case SERIAL_TIMEOUT
:
3934 /* Send the command in BUF to the remote machine, and read the reply
3935 into BUF. Report an error if we get an error reply. */
3938 remote_send (char *buf
,
3942 getpkt (buf
, sizeof_buf
, 0);
3945 error (_("Remote failure reply: %s"), buf
);
3948 /* Display a null-terminated packet on stdout, for debugging, using C
3952 print_packet (char *buf
)
3954 puts_filtered ("\"");
3955 fputstr_filtered (buf
, '"', gdb_stdout
);
3956 puts_filtered ("\"");
3962 return putpkt_binary (buf
, strlen (buf
));
3965 /* Send a packet to the remote machine, with error checking. The data
3966 of the packet is in BUF. The string in BUF can be at most
3967 (rs->remote_packet_size) - 5 to account for the $, # and checksum,
3968 and for a possible /0 if we are debugging (remote_debug) and want
3969 to print the sent packet as a string. */
3972 putpkt_binary (char *buf
, int cnt
)
3974 struct remote_state
*rs
= get_remote_state ();
3976 unsigned char csum
= 0;
3977 char *buf2
= alloca (cnt
+ 6);
3978 long sizeof_junkbuf
= (rs
->remote_packet_size
);
3979 char *junkbuf
= alloca (sizeof_junkbuf
);
3985 /* Copy the packet into buffer BUF2, encapsulating it
3986 and giving it a checksum. */
3991 for (i
= 0; i
< cnt
; i
++)
3997 *p
++ = tohex ((csum
>> 4) & 0xf);
3998 *p
++ = tohex (csum
& 0xf);
4000 /* Send it over and over until we get a positive ack. */
4004 int started_error_output
= 0;
4009 fprintf_unfiltered (gdb_stdlog
, "Sending packet: ");
4010 fputstrn_unfiltered (buf2
, p
- buf2
, 0, gdb_stdlog
);
4011 fprintf_unfiltered (gdb_stdlog
, "...");
4012 gdb_flush (gdb_stdlog
);
4014 if (serial_write (remote_desc
, buf2
, p
- buf2
))
4015 perror_with_name (_("putpkt: write failed"));
4017 /* Read until either a timeout occurs (-2) or '+' is read. */
4020 ch
= readchar (remote_timeout
);
4028 case SERIAL_TIMEOUT
:
4030 if (started_error_output
)
4032 putchar_unfiltered ('\n');
4033 started_error_output
= 0;
4042 fprintf_unfiltered (gdb_stdlog
, "Ack\n");
4046 fprintf_unfiltered (gdb_stdlog
, "Nak\n");
4047 case SERIAL_TIMEOUT
:
4051 break; /* Retransmit buffer. */
4055 fprintf_unfiltered (gdb_stdlog
,
4056 "Packet instead of Ack, ignoring it\n");
4057 /* It's probably an old response sent because an ACK
4058 was lost. Gobble up the packet and ack it so it
4059 doesn't get retransmitted when we resend this
4061 read_frame (junkbuf
, sizeof_junkbuf
);
4062 serial_write (remote_desc
, "+", 1);
4063 continue; /* Now, go look for +. */
4068 if (!started_error_output
)
4070 started_error_output
= 1;
4071 fprintf_unfiltered (gdb_stdlog
, "putpkt: Junk: ");
4073 fputc_unfiltered (ch
& 0177, gdb_stdlog
);
4077 break; /* Here to retransmit. */
4081 /* This is wrong. If doing a long backtrace, the user should be
4082 able to get out next time we call QUIT, without anything as
4083 violent as interrupt_query. If we want to provide a way out of
4084 here without getting to the next QUIT, it should be based on
4085 hitting ^C twice as in remote_wait. */
4095 /* Come here after finding the start of the frame. Collect the rest
4096 into BUF, verifying the checksum, length, and handling run-length
4097 compression. No more than sizeof_buf-1 characters are read so that
4098 the buffer can be NUL terminated.
4100 Returns -1 on error, number of characters in buffer (ignoring the
4101 trailing NULL) on success. (could be extended to return one of the
4102 SERIAL status indications). */
4105 read_frame (char *buf
,
4117 /* ASSERT (bc < sizeof_buf - 1) - space for trailing NULL. */
4118 c
= readchar (remote_timeout
);
4121 case SERIAL_TIMEOUT
:
4123 fputs_filtered ("Timeout in mid-packet, retrying\n", gdb_stdlog
);
4127 fputs_filtered ("Saw new packet start in middle of old one\n",
4129 return -1; /* Start a new packet, count retries. */
4132 unsigned char pktcsum
;
4138 check_0
= readchar (remote_timeout
);
4140 check_1
= readchar (remote_timeout
);
4142 if (check_0
== SERIAL_TIMEOUT
|| check_1
== SERIAL_TIMEOUT
)
4145 fputs_filtered ("Timeout in checksum, retrying\n",
4149 else if (check_0
< 0 || check_1
< 0)
4152 fputs_filtered ("Communication error in checksum\n",
4157 pktcsum
= (fromhex (check_0
) << 4) | fromhex (check_1
);
4158 if (csum
== pktcsum
)
4163 fprintf_filtered (gdb_stdlog
,
4164 "Bad checksum, sentsum=0x%x, csum=0x%x, buf=",
4166 fputs_filtered (buf
, gdb_stdlog
);
4167 fputs_filtered ("\n", gdb_stdlog
);
4169 /* Number of characters in buffer ignoring trailing
4173 case '*': /* Run length encoding. */
4178 c
= readchar (remote_timeout
);
4180 repeat
= c
- ' ' + 3; /* Compute repeat count. */
4182 /* The character before ``*'' is repeated. */
4184 if (repeat
> 0 && repeat
<= 255
4186 && bc
+ repeat
- 1 < sizeof_buf
- 1)
4188 memset (&buf
[bc
], buf
[bc
- 1], repeat
);
4194 printf_filtered (_("Repeat count %d too large for buffer: "),
4196 puts_filtered (buf
);
4197 puts_filtered ("\n");
4201 if (bc
< sizeof_buf
- 1)
4209 puts_filtered ("Remote packet too long: ");
4210 puts_filtered (buf
);
4211 puts_filtered ("\n");
4218 /* Read a packet from the remote machine, with error checking, and
4219 store it in BUF. If FOREVER, wait forever rather than timing out;
4220 this is used (in synchronous mode) to wait for a target that is is
4221 executing user code to stop. */
4222 /* FIXME: ezannoni 2000-02-01 this wrapper is necessary so that we
4223 don't have to change all the calls to getpkt to deal with the
4224 return value, because at the moment I don't know what the right
4225 thing to do it for those. */
4233 timed_out
= getpkt_sane (buf
, sizeof_buf
, forever
);
4237 /* Read a packet from the remote machine, with error checking, and
4238 store it in BUF. If FOREVER, wait forever rather than timing out;
4239 this is used (in synchronous mode) to wait for a target that is is
4240 executing user code to stop. If FOREVER == 0, this function is
4241 allowed to time out gracefully and return an indication of this to
4244 getpkt_sane (char *buf
,
4253 strcpy (buf
, "timeout");
4257 timeout
= watchdog
> 0 ? watchdog
: -1;
4261 timeout
= remote_timeout
;
4265 for (tries
= 1; tries
<= MAX_TRIES
; tries
++)
4267 /* This can loop forever if the remote side sends us characters
4268 continuously, but if it pauses, we'll get a zero from
4269 readchar because of timeout. Then we'll count that as a
4272 /* Note that we will only wait forever prior to the start of a
4273 packet. After that, we expect characters to arrive at a
4274 brisk pace. They should show up within remote_timeout
4279 c
= readchar (timeout
);
4281 if (c
== SERIAL_TIMEOUT
)
4283 if (forever
) /* Watchdog went off? Kill the target. */
4286 target_mourn_inferior ();
4287 error (_("Watchdog has expired. Target detached."));
4290 fputs_filtered ("Timed out.\n", gdb_stdlog
);
4296 /* We've found the start of a packet, now collect the data. */
4298 val
= read_frame (buf
, sizeof_buf
);
4304 fprintf_unfiltered (gdb_stdlog
, "Packet received: ");
4305 fputstr_unfiltered (buf
, 0, gdb_stdlog
);
4306 fprintf_unfiltered (gdb_stdlog
, "\n");
4308 serial_write (remote_desc
, "+", 1);
4312 /* Try the whole thing again. */
4314 serial_write (remote_desc
, "-", 1);
4317 /* We have tried hard enough, and just can't receive the packet.
4320 printf_unfiltered (_("Ignoring packet error, continuing...\n"));
4321 serial_write (remote_desc
, "+", 1);
4328 /* For some mysterious reason, wait_for_inferior calls kill instead of
4329 mourn after it gets TARGET_WAITKIND_SIGNALLED. Work around it. */
4333 target_mourn_inferior ();
4337 /* Use catch_errors so the user can quit from gdb even when we aren't on
4338 speaking terms with the remote system. */
4339 catch_errors ((catch_errors_ftype
*) putpkt
, "k", "", RETURN_MASK_ERROR
);
4341 /* Don't wait for it to die. I'm not really sure it matters whether
4342 we do or not. For the existing stubs, kill is a noop. */
4343 target_mourn_inferior ();
4346 /* Async version of remote_kill. */
4348 remote_async_kill (void)
4350 /* Unregister the file descriptor from the event loop. */
4351 if (target_is_async_p ())
4352 serial_async (remote_desc
, NULL
, 0);
4354 /* For some mysterious reason, wait_for_inferior calls kill instead of
4355 mourn after it gets TARGET_WAITKIND_SIGNALLED. Work around it. */
4359 target_mourn_inferior ();
4363 /* Use catch_errors so the user can quit from gdb even when we
4364 aren't on speaking terms with the remote system. */
4365 catch_errors ((catch_errors_ftype
*) putpkt
, "k", "", RETURN_MASK_ERROR
);
4367 /* Don't wait for it to die. I'm not really sure it matters whether
4368 we do or not. For the existing stubs, kill is a noop. */
4369 target_mourn_inferior ();
4375 remote_mourn_1 (&remote_ops
);
4379 remote_async_mourn (void)
4381 remote_mourn_1 (&remote_async_ops
);
4385 extended_remote_mourn (void)
4387 /* We do _not_ want to mourn the target like this; this will
4388 remove the extended remote target from the target stack,
4389 and the next time the user says "run" it'll fail.
4391 FIXME: What is the right thing to do here? */
4393 remote_mourn_1 (&extended_remote_ops
);
4397 /* Worker function for remote_mourn. */
4399 remote_mourn_1 (struct target_ops
*target
)
4401 unpush_target (target
);
4402 generic_mourn_inferior ();
4405 /* In the extended protocol we want to be able to do things like
4406 "run" and have them basically work as expected. So we need
4407 a special create_inferior function.
4409 FIXME: One day add support for changing the exec file
4410 we're debugging, arguments and an environment. */
4413 extended_remote_create_inferior (char *exec_file
, char *args
,
4414 char **env
, int from_tty
)
4416 /* Rip out the breakpoints; we'll reinsert them after restarting
4417 the remote server. */
4418 remove_breakpoints ();
4420 /* Now restart the remote server. */
4421 extended_remote_restart ();
4423 /* Now put the breakpoints back in. This way we're safe if the
4424 restart function works via a unix fork on the remote side. */
4425 insert_breakpoints ();
4427 /* Clean up from the last time we were running. */
4428 clear_proceed_status ();
4430 /* Let the remote process run. */
4431 proceed (-1, TARGET_SIGNAL_0
, 0);
4434 /* Async version of extended_remote_create_inferior. */
4436 extended_remote_async_create_inferior (char *exec_file
, char *args
,
4437 char **env
, int from_tty
)
4439 /* Rip out the breakpoints; we'll reinsert them after restarting
4440 the remote server. */
4441 remove_breakpoints ();
4443 /* If running asynchronously, register the target file descriptor
4444 with the event loop. */
4445 if (target_can_async_p ())
4446 target_async (inferior_event_handler
, 0);
4448 /* Now restart the remote server. */
4449 extended_remote_restart ();
4451 /* Now put the breakpoints back in. This way we're safe if the
4452 restart function works via a unix fork on the remote side. */
4453 insert_breakpoints ();
4455 /* Clean up from the last time we were running. */
4456 clear_proceed_status ();
4458 /* Let the remote process run. */
4459 proceed (-1, TARGET_SIGNAL_0
, 0);
4463 /* On some machines, e.g. 68k, we may use a different breakpoint
4464 instruction than other targets; in those use
4465 DEPRECATED_REMOTE_BREAKPOINT instead of just BREAKPOINT_FROM_PC.
4466 Also, bi-endian targets may define
4467 DEPRECATED_LITTLE_REMOTE_BREAKPOINT and
4468 DEPRECATED_BIG_REMOTE_BREAKPOINT. If none of these are defined, we
4469 just call the standard routines that are in mem-break.c. */
4471 /* NOTE: cagney/2003-06-08: This is silly. A remote and simulator
4472 target should use an identical BREAKPOINT_FROM_PC. As for native,
4473 the ARCH-OS-tdep.c code can override the default. */
4475 #if defined (DEPRECATED_LITTLE_REMOTE_BREAKPOINT) && defined (DEPRECATED_BIG_REMOTE_BREAKPOINT) && !defined(DEPRECATED_REMOTE_BREAKPOINT)
4476 #define DEPRECATED_REMOTE_BREAKPOINT
4479 #ifdef DEPRECATED_REMOTE_BREAKPOINT
4481 /* If the target isn't bi-endian, just pretend it is. */
4482 #if !defined (DEPRECATED_LITTLE_REMOTE_BREAKPOINT) && !defined (DEPRECATED_BIG_REMOTE_BREAKPOINT)
4483 #define DEPRECATED_LITTLE_REMOTE_BREAKPOINT DEPRECATED_REMOTE_BREAKPOINT
4484 #define DEPRECATED_BIG_REMOTE_BREAKPOINT DEPRECATED_REMOTE_BREAKPOINT
4487 static unsigned char big_break_insn
[] = DEPRECATED_BIG_REMOTE_BREAKPOINT
;
4488 static unsigned char little_break_insn
[] = DEPRECATED_LITTLE_REMOTE_BREAKPOINT
;
4490 #endif /* DEPRECATED_REMOTE_BREAKPOINT */
4492 /* Insert a breakpoint on targets that don't have any better
4493 breakpoint support. We read the contents of the target location
4494 and stash it, then overwrite it with a breakpoint instruction.
4495 ADDR is the target location in the target machine. CONTENTS_CACHE
4496 is a pointer to memory allocated for saving the target contents.
4497 It is guaranteed by the caller to be long enough to save the number
4498 of bytes returned by BREAKPOINT_FROM_PC. */
4501 remote_insert_breakpoint (CORE_ADDR addr
, char *contents_cache
)
4503 struct remote_state
*rs
= get_remote_state ();
4504 #ifdef DEPRECATED_REMOTE_BREAKPOINT
4509 /* Try the "Z" s/w breakpoint packet if it is not already disabled.
4510 If it succeeds, then set the support to PACKET_ENABLE. If it
4511 fails, and the user has explicitly requested the Z support then
4512 report an error, otherwise, mark it disabled and go on. */
4514 if (remote_protocol_Z
[Z_PACKET_SOFTWARE_BP
].support
!= PACKET_DISABLE
)
4516 char *buf
= alloca (rs
->remote_packet_size
);
4519 addr
= remote_address_masked (addr
);
4523 p
+= hexnumstr (p
, (ULONGEST
) addr
);
4524 BREAKPOINT_FROM_PC (&addr
, &bp_size
);
4525 sprintf (p
, ",%d", bp_size
);
4528 getpkt (buf
, (rs
->remote_packet_size
), 0);
4530 switch (packet_ok (buf
, &remote_protocol_Z
[Z_PACKET_SOFTWARE_BP
]))
4536 case PACKET_UNKNOWN
:
4541 #ifdef DEPRECATED_REMOTE_BREAKPOINT
4542 val
= target_read_memory (addr
, contents_cache
, sizeof big_break_insn
);
4546 if (TARGET_BYTE_ORDER
== BFD_ENDIAN_BIG
)
4547 val
= target_write_memory (addr
, (char *) big_break_insn
,
4548 sizeof big_break_insn
);
4550 val
= target_write_memory (addr
, (char *) little_break_insn
,
4551 sizeof little_break_insn
);
4556 return memory_insert_breakpoint (addr
, contents_cache
);
4557 #endif /* DEPRECATED_REMOTE_BREAKPOINT */
4561 remote_remove_breakpoint (CORE_ADDR addr
, char *contents_cache
)
4563 struct remote_state
*rs
= get_remote_state ();
4566 if (remote_protocol_Z
[Z_PACKET_SOFTWARE_BP
].support
!= PACKET_DISABLE
)
4568 char *buf
= alloca (rs
->remote_packet_size
);
4575 addr
= remote_address_masked (addr
);
4576 p
+= hexnumstr (p
, (ULONGEST
) addr
);
4577 BREAKPOINT_FROM_PC (&addr
, &bp_size
);
4578 sprintf (p
, ",%d", bp_size
);
4581 getpkt (buf
, (rs
->remote_packet_size
), 0);
4583 return (buf
[0] == 'E');
4586 #ifdef DEPRECATED_REMOTE_BREAKPOINT
4587 return target_write_memory (addr
, contents_cache
, sizeof big_break_insn
);
4589 return memory_remove_breakpoint (addr
, contents_cache
);
4590 #endif /* DEPRECATED_REMOTE_BREAKPOINT */
4594 watchpoint_to_Z_packet (int type
)
4608 internal_error (__FILE__
, __LINE__
,
4609 _("hw_bp_to_z: bad watchpoint type %d"), type
);
4614 remote_insert_watchpoint (CORE_ADDR addr
, int len
, int type
)
4616 struct remote_state
*rs
= get_remote_state ();
4617 char *buf
= alloca (rs
->remote_packet_size
);
4619 enum Z_packet_type packet
= watchpoint_to_Z_packet (type
);
4621 if (remote_protocol_Z
[packet
].support
== PACKET_DISABLE
)
4622 error (_("Can't set hardware watchpoints without the '%s' (%s) packet."),
4623 remote_protocol_Z
[packet
].name
,
4624 remote_protocol_Z
[packet
].title
);
4626 sprintf (buf
, "Z%x,", packet
);
4627 p
= strchr (buf
, '\0');
4628 addr
= remote_address_masked (addr
);
4629 p
+= hexnumstr (p
, (ULONGEST
) addr
);
4630 sprintf (p
, ",%x", len
);
4633 getpkt (buf
, (rs
->remote_packet_size
), 0);
4635 switch (packet_ok (buf
, &remote_protocol_Z
[packet
]))
4638 case PACKET_UNKNOWN
:
4643 internal_error (__FILE__
, __LINE__
,
4644 _("remote_insert_watchpoint: reached end of function"));
4649 remote_remove_watchpoint (CORE_ADDR addr
, int len
, int type
)
4651 struct remote_state
*rs
= get_remote_state ();
4652 char *buf
= alloca (rs
->remote_packet_size
);
4654 enum Z_packet_type packet
= watchpoint_to_Z_packet (type
);
4656 if (remote_protocol_Z
[packet
].support
== PACKET_DISABLE
)
4657 error (_("Can't clear hardware watchpoints without the '%s' (%s) packet."),
4658 remote_protocol_Z
[packet
].name
,
4659 remote_protocol_Z
[packet
].title
);
4661 sprintf (buf
, "z%x,", packet
);
4662 p
= strchr (buf
, '\0');
4663 addr
= remote_address_masked (addr
);
4664 p
+= hexnumstr (p
, (ULONGEST
) addr
);
4665 sprintf (p
, ",%x", len
);
4667 getpkt (buf
, (rs
->remote_packet_size
), 0);
4669 switch (packet_ok (buf
, &remote_protocol_Z
[packet
]))
4672 case PACKET_UNKNOWN
:
4677 internal_error (__FILE__
, __LINE__
,
4678 _("remote_remove_watchpoint: reached end of function"));
4682 int remote_hw_watchpoint_limit
= -1;
4683 int remote_hw_breakpoint_limit
= -1;
4686 remote_check_watch_resources (int type
, int cnt
, int ot
)
4688 if (type
== bp_hardware_breakpoint
)
4690 if (remote_hw_breakpoint_limit
== 0)
4692 else if (remote_hw_breakpoint_limit
< 0)
4694 else if (cnt
<= remote_hw_breakpoint_limit
)
4699 if (remote_hw_watchpoint_limit
== 0)
4701 else if (remote_hw_watchpoint_limit
< 0)
4705 else if (cnt
<= remote_hw_watchpoint_limit
)
4712 remote_stopped_by_watchpoint (void)
4714 return remote_stopped_by_watchpoint_p
;
4717 extern int stepped_after_stopped_by_watchpoint
;
4720 remote_stopped_data_address (struct target_ops
*target
, CORE_ADDR
*addr_p
)
4723 if (remote_stopped_by_watchpoint ()
4724 || stepped_after_stopped_by_watchpoint
)
4726 *addr_p
= remote_watch_data_address
;
4735 remote_insert_hw_breakpoint (CORE_ADDR addr
, char *shadow
)
4738 struct remote_state
*rs
= get_remote_state ();
4739 char *buf
= alloca (rs
->remote_packet_size
);
4742 /* The length field should be set to the size of a breakpoint
4745 BREAKPOINT_FROM_PC (&addr
, &len
);
4747 if (remote_protocol_Z
[Z_PACKET_HARDWARE_BP
].support
== PACKET_DISABLE
)
4748 error (_("Can't set hardware breakpoint without the '%s' (%s) packet."),
4749 remote_protocol_Z
[Z_PACKET_HARDWARE_BP
].name
,
4750 remote_protocol_Z
[Z_PACKET_HARDWARE_BP
].title
);
4756 addr
= remote_address_masked (addr
);
4757 p
+= hexnumstr (p
, (ULONGEST
) addr
);
4758 sprintf (p
, ",%x", len
);
4761 getpkt (buf
, (rs
->remote_packet_size
), 0);
4763 switch (packet_ok (buf
, &remote_protocol_Z
[Z_PACKET_HARDWARE_BP
]))
4766 case PACKET_UNKNOWN
:
4771 internal_error (__FILE__
, __LINE__
,
4772 _("remote_insert_hw_breakpoint: reached end of function"));
4777 remote_remove_hw_breakpoint (CORE_ADDR addr
, char *shadow
)
4780 struct remote_state
*rs
= get_remote_state ();
4781 char *buf
= alloca (rs
->remote_packet_size
);
4784 /* The length field should be set to the size of a breakpoint
4787 BREAKPOINT_FROM_PC (&addr
, &len
);
4789 if (remote_protocol_Z
[Z_PACKET_HARDWARE_BP
].support
== PACKET_DISABLE
)
4790 error (_("Can't clear hardware breakpoint without the '%s' (%s) packet."),
4791 remote_protocol_Z
[Z_PACKET_HARDWARE_BP
].name
,
4792 remote_protocol_Z
[Z_PACKET_HARDWARE_BP
].title
);
4798 addr
= remote_address_masked (addr
);
4799 p
+= hexnumstr (p
, (ULONGEST
) addr
);
4800 sprintf (p
, ",%x", len
);
4803 getpkt (buf
, (rs
->remote_packet_size
), 0);
4805 switch (packet_ok (buf
, &remote_protocol_Z
[Z_PACKET_HARDWARE_BP
]))
4808 case PACKET_UNKNOWN
:
4813 internal_error (__FILE__
, __LINE__
,
4814 _("remote_remove_hw_breakpoint: reached end of function"));
4817 /* Some targets are only capable of doing downloads, and afterwards
4818 they switch to the remote serial protocol. This function provides
4819 a clean way to get from the download target to the remote target.
4820 It's basically just a wrapper so that we don't have to expose any
4821 of the internal workings of remote.c.
4823 Prior to calling this routine, you should shutdown the current
4824 target code, else you will get the "A program is being debugged
4825 already..." message. Usually a call to pop_target() suffices. */
4828 push_remote_target (char *name
, int from_tty
)
4830 printf_filtered (_("Switching to remote protocol\n"));
4831 remote_open (name
, from_tty
);
4834 /* Table used by the crc32 function to calcuate the checksum. */
4836 static unsigned long crc32_table
[256] =
4839 static unsigned long
4840 crc32 (unsigned char *buf
, int len
, unsigned int crc
)
4842 if (!crc32_table
[1])
4844 /* Initialize the CRC table and the decoding table. */
4848 for (i
= 0; i
< 256; i
++)
4850 for (c
= i
<< 24, j
= 8; j
> 0; --j
)
4851 c
= c
& 0x80000000 ? (c
<< 1) ^ 0x04c11db7 : (c
<< 1);
4858 crc
= (crc
<< 8) ^ crc32_table
[((crc
>> 24) ^ *buf
) & 255];
4864 /* compare-sections command
4866 With no arguments, compares each loadable section in the exec bfd
4867 with the same memory range on the target, and reports mismatches.
4868 Useful for verifying the image on the target against the exec file.
4869 Depends on the target understanding the new "qCRC:" request. */
4871 /* FIXME: cagney/1999-10-26: This command should be broken down into a
4872 target method (target verify memory) and generic version of the
4873 actual command. This will allow other high-level code (especially
4874 generic_load()) to make use of this target functionality. */
4877 compare_sections_command (char *args
, int from_tty
)
4879 struct remote_state
*rs
= get_remote_state ();
4881 unsigned long host_crc
, target_crc
;
4882 extern bfd
*exec_bfd
;
4883 struct cleanup
*old_chain
;
4886 const char *sectname
;
4887 char *buf
= alloca (rs
->remote_packet_size
);
4894 error (_("command cannot be used without an exec file"));
4895 if (!current_target
.to_shortname
||
4896 strcmp (current_target
.to_shortname
, "remote") != 0)
4897 error (_("command can only be used with remote target"));
4899 for (s
= exec_bfd
->sections
; s
; s
= s
->next
)
4901 if (!(s
->flags
& SEC_LOAD
))
4902 continue; /* skip non-loadable section */
4904 size
= bfd_get_section_size (s
);
4906 continue; /* skip zero-length section */
4908 sectname
= bfd_get_section_name (exec_bfd
, s
);
4909 if (args
&& strcmp (args
, sectname
) != 0)
4910 continue; /* not the section selected by user */
4912 matched
= 1; /* do this section */
4914 /* FIXME: assumes lma can fit into long. */
4915 sprintf (buf
, "qCRC:%lx,%lx", (long) lma
, (long) size
);
4918 /* Be clever; compute the host_crc before waiting for target
4920 sectdata
= xmalloc (size
);
4921 old_chain
= make_cleanup (xfree
, sectdata
);
4922 bfd_get_section_contents (exec_bfd
, s
, sectdata
, 0, size
);
4923 host_crc
= crc32 ((unsigned char *) sectdata
, size
, 0xffffffff);
4925 getpkt (buf
, (rs
->remote_packet_size
), 0);
4927 error (_("target memory fault, section %s, range 0x%s -- 0x%s"),
4928 sectname
, paddr (lma
), paddr (lma
+ size
));
4930 error (_("remote target does not support this operation"));
4932 for (target_crc
= 0, tmp
= &buf
[1]; *tmp
; tmp
++)
4933 target_crc
= target_crc
* 16 + fromhex (*tmp
);
4935 printf_filtered ("Section %s, range 0x%s -- 0x%s: ",
4936 sectname
, paddr (lma
), paddr (lma
+ size
));
4937 if (host_crc
== target_crc
)
4938 printf_filtered ("matched.\n");
4941 printf_filtered ("MIS-MATCHED!\n");
4945 do_cleanups (old_chain
);
4948 warning (_("One or more sections of the remote executable does not match\n\
4949 the loaded file\n"));
4950 if (args
&& !matched
)
4951 printf_filtered (_("No loaded section named '%s'.\n"), args
);
4955 remote_xfer_partial (struct target_ops
*ops
, enum target_object object
,
4956 const char *annex
, void *readbuf
, const void *writebuf
,
4957 ULONGEST offset
, LONGEST len
)
4959 struct remote_state
*rs
= get_remote_state ();
4961 char *buf2
= alloca (rs
->remote_packet_size
);
4962 char *p2
= &buf2
[0];
4965 /* Handle memory using remote_xfer_memory. */
4966 if (object
== TARGET_OBJECT_MEMORY
)
4971 if (writebuf
!= NULL
)
4973 void *buffer
= xmalloc (len
);
4974 struct cleanup
*cleanup
= make_cleanup (xfree
, buffer
);
4975 memcpy (buffer
, writebuf
, len
);
4976 xfered
= remote_xfer_memory (offset
, buffer
, len
, 1, NULL
, ops
);
4977 do_cleanups (cleanup
);
4980 xfered
= remote_xfer_memory (offset
, readbuf
, len
, 0, NULL
, ops
);
4984 else if (xfered
== 0 && errno
== 0)
4990 /* Only handle reads. */
4991 if (writebuf
!= NULL
|| readbuf
== NULL
)
4994 /* Map pre-existing objects onto letters. DO NOT do this for new
4995 objects!!! Instead specify new query packets. */
4998 case TARGET_OBJECT_KOD
:
5001 case TARGET_OBJECT_AVR
:
5005 case TARGET_OBJECT_AUXV
:
5006 if (remote_protocol_qPart_auxv
.support
!= PACKET_DISABLE
)
5008 unsigned int total
= 0;
5011 LONGEST n
= min ((rs
->remote_packet_size
- 2) / 2, len
);
5012 snprintf (buf2
, rs
->remote_packet_size
,
5013 "qPart:auxv:read::%s,%s",
5014 phex_nz (offset
, sizeof offset
),
5015 phex_nz (n
, sizeof n
));
5018 return total
> 0 ? total
: i
;
5020 getpkt (buf2
, rs
->remote_packet_size
, 0);
5021 if (packet_ok (buf2
, &remote_protocol_qPart_auxv
) != PACKET_OK
)
5022 return total
> 0 ? total
: -1;
5023 if (buf2
[0] == 'O' && buf2
[1] == 'K' && buf2
[2] == '\0')
5024 break; /* Got EOF indicator. */
5025 /* Got some data. */
5026 i
= hex2bin (buf2
, readbuf
, len
);
5029 readbuf
= (void *) ((char *) readbuf
+ i
);
5043 /* Note: a zero OFFSET and LEN can be used to query the minimum
5045 if (offset
== 0 && len
== 0)
5046 return (rs
->remote_packet_size
);
5047 /* Minimum outbuf size is (rs->remote_packet_size) - if bufsiz is
5048 not large enough let the caller. */
5049 if (len
< (rs
->remote_packet_size
))
5051 len
= rs
->remote_packet_size
;
5053 /* Except for querying the minimum buffer size, target must be open. */
5055 error (_("remote query is only available after target open"));
5057 gdb_assert (annex
!= NULL
);
5058 gdb_assert (readbuf
!= NULL
);
5063 /* We used one buffer char for the remote protocol q command and
5064 another for the query type. As the remote protocol encapsulation
5065 uses 4 chars plus one extra in case we are debugging
5066 (remote_debug), we have PBUFZIZ - 7 left to pack the query
5069 while (annex
[i
] && (i
< ((rs
->remote_packet_size
) - 8)))
5071 /* Bad caller may have sent forbidden characters. */
5072 gdb_assert (isprint (annex
[i
]) && annex
[i
] != '$' && annex
[i
] != '#');
5077 gdb_assert (annex
[i
] == '\0');
5083 getpkt (readbuf
, len
, 0);
5085 return strlen (readbuf
);
5089 remote_rcmd (char *command
,
5090 struct ui_file
*outbuf
)
5092 struct remote_state
*rs
= get_remote_state ();
5093 char *buf
= alloca (rs
->remote_packet_size
);
5097 error (_("remote rcmd is only available after target open"));
5099 /* Send a NULL command across as an empty command. */
5100 if (command
== NULL
)
5103 /* The query prefix. */
5104 strcpy (buf
, "qRcmd,");
5105 p
= strchr (buf
, '\0');
5107 if ((strlen (buf
) + strlen (command
) * 2 + 8/*misc*/) > (rs
->remote_packet_size
))
5108 error (_("\"monitor\" command ``%s'' is too long."), command
);
5110 /* Encode the actual command. */
5111 bin2hex (command
, p
, 0);
5113 if (putpkt (buf
) < 0)
5114 error (_("Communication problem with target."));
5116 /* get/display the response */
5119 /* XXX - see also tracepoint.c:remote_get_noisy_reply(). */
5121 getpkt (buf
, (rs
->remote_packet_size
), 0);
5123 error (_("Target does not support this command."));
5124 if (buf
[0] == 'O' && buf
[1] != 'K')
5126 remote_console_output (buf
+ 1); /* 'O' message from stub. */
5129 if (strcmp (buf
, "OK") == 0)
5131 if (strlen (buf
) == 3 && buf
[0] == 'E'
5132 && isdigit (buf
[1]) && isdigit (buf
[2]))
5134 error (_("Protocol error with Rcmd"));
5136 for (p
= buf
; p
[0] != '\0' && p
[1] != '\0'; p
+= 2)
5138 char c
= (fromhex (p
[0]) << 4) + fromhex (p
[1]);
5139 fputc_unfiltered (c
, outbuf
);
5146 packet_command (char *args
, int from_tty
)
5148 struct remote_state
*rs
= get_remote_state ();
5149 char *buf
= alloca (rs
->remote_packet_size
);
5152 error (_("command can only be used with remote target"));
5155 error (_("remote-packet command requires packet text as argument"));
5157 puts_filtered ("sending: ");
5158 print_packet (args
);
5159 puts_filtered ("\n");
5162 getpkt (buf
, (rs
->remote_packet_size
), 0);
5163 puts_filtered ("received: ");
5165 puts_filtered ("\n");
5169 /* --------- UNIT_TEST for THREAD oriented PACKETS ------------------- */
5171 static void display_thread_info (struct gdb_ext_thread_info
*info
);
5173 static void threadset_test_cmd (char *cmd
, int tty
);
5175 static void threadalive_test (char *cmd
, int tty
);
5177 static void threadlist_test_cmd (char *cmd
, int tty
);
5179 int get_and_display_threadinfo (threadref
*ref
);
5181 static void threadinfo_test_cmd (char *cmd
, int tty
);
5183 static int thread_display_step (threadref
*ref
, void *context
);
5185 static void threadlist_update_test_cmd (char *cmd
, int tty
);
5187 static void init_remote_threadtests (void);
5189 #define SAMPLE_THREAD 0x05060708 /* Truncated 64 bit threadid. */
5192 threadset_test_cmd (char *cmd
, int tty
)
5194 int sample_thread
= SAMPLE_THREAD
;
5196 printf_filtered (_("Remote threadset test\n"));
5197 set_thread (sample_thread
, 1);
5202 threadalive_test (char *cmd
, int tty
)
5204 int sample_thread
= SAMPLE_THREAD
;
5206 if (remote_thread_alive (pid_to_ptid (sample_thread
)))
5207 printf_filtered ("PASS: Thread alive test\n");
5209 printf_filtered ("FAIL: Thread alive test\n");
5212 void output_threadid (char *title
, threadref
*ref
);
5215 output_threadid (char *title
, threadref
*ref
)
5219 pack_threadid (&hexid
[0], ref
); /* Convert threead id into hex. */
5221 printf_filtered ("%s %s\n", title
, (&hexid
[0]));
5225 threadlist_test_cmd (char *cmd
, int tty
)
5228 threadref nextthread
;
5229 int done
, result_count
;
5230 threadref threadlist
[3];
5232 printf_filtered ("Remote Threadlist test\n");
5233 if (!remote_get_threadlist (startflag
, &nextthread
, 3, &done
,
5234 &result_count
, &threadlist
[0]))
5235 printf_filtered ("FAIL: threadlist test\n");
5238 threadref
*scan
= threadlist
;
5239 threadref
*limit
= scan
+ result_count
;
5241 while (scan
< limit
)
5242 output_threadid (" thread ", scan
++);
5247 display_thread_info (struct gdb_ext_thread_info
*info
)
5249 output_threadid ("Threadid: ", &info
->threadid
);
5250 printf_filtered ("Name: %s\n ", info
->shortname
);
5251 printf_filtered ("State: %s\n", info
->display
);
5252 printf_filtered ("other: %s\n\n", info
->more_display
);
5256 get_and_display_threadinfo (threadref
*ref
)
5260 struct gdb_ext_thread_info threadinfo
;
5262 set
= TAG_THREADID
| TAG_EXISTS
| TAG_THREADNAME
5263 | TAG_MOREDISPLAY
| TAG_DISPLAY
;
5264 if (0 != (result
= remote_get_threadinfo (ref
, set
, &threadinfo
)))
5265 display_thread_info (&threadinfo
);
5270 threadinfo_test_cmd (char *cmd
, int tty
)
5272 int athread
= SAMPLE_THREAD
;
5276 int_to_threadref (&thread
, athread
);
5277 printf_filtered ("Remote Threadinfo test\n");
5278 if (!get_and_display_threadinfo (&thread
))
5279 printf_filtered ("FAIL cannot get thread info\n");
5283 thread_display_step (threadref
*ref
, void *context
)
5285 /* output_threadid(" threadstep ",ref); *//* simple test */
5286 return get_and_display_threadinfo (ref
);
5290 threadlist_update_test_cmd (char *cmd
, int tty
)
5292 printf_filtered ("Remote Threadlist update test\n");
5293 remote_threadlist_iterator (thread_display_step
, 0, CRAZY_MAX_THREADS
);
5297 init_remote_threadtests (void)
5299 add_com ("tlist", class_obscure
, threadlist_test_cmd
, _("\
5300 Fetch and print the remote list of thread identifiers, one pkt only"));
5301 add_com ("tinfo", class_obscure
, threadinfo_test_cmd
,
5302 _("Fetch and display info about one thread"));
5303 add_com ("tset", class_obscure
, threadset_test_cmd
,
5304 _("Test setting to a different thread"));
5305 add_com ("tupd", class_obscure
, threadlist_update_test_cmd
,
5306 _("Iterate through updating all remote thread info"));
5307 add_com ("talive", class_obscure
, threadalive_test
,
5308 _(" Remote thread alive test "));
5313 /* Convert a thread ID to a string. Returns the string in a static
5317 remote_pid_to_str (ptid_t ptid
)
5319 static char buf
[32];
5322 size
= snprintf (buf
, sizeof buf
, "thread %d", ptid_get_pid (ptid
));
5323 gdb_assert (size
< sizeof buf
);
5327 /* Get the address of the thread local variable in OBJFILE which is
5328 stored at OFFSET within the thread local storage for thread PTID. */
5331 remote_get_thread_local_address (ptid_t ptid
, CORE_ADDR lm
, CORE_ADDR offset
)
5333 if (remote_protocol_qGetTLSAddr
.support
!= PACKET_DISABLE
)
5335 struct remote_state
*rs
= get_remote_state ();
5336 char *buf
= alloca (rs
->remote_packet_size
);
5338 enum packet_result result
;
5340 strcpy (p
, "qGetTLSAddr:");
5342 p
+= hexnumstr (p
, PIDGET (ptid
));
5344 p
+= hexnumstr (p
, offset
);
5346 p
+= hexnumstr (p
, lm
);
5350 getpkt (buf
, rs
->remote_packet_size
, 0);
5351 result
= packet_ok (buf
, &remote_protocol_qGetTLSAddr
);
5352 if (result
== PACKET_OK
)
5356 unpack_varlen_hex (buf
, &result
);
5359 else if (result
== PACKET_UNKNOWN
)
5362 = { RETURN_ERROR
, TLS_GENERIC_ERROR
,
5363 "Remote target doesn't support qGetTLSAddr packet" };
5364 throw_exception (e
);
5369 = { RETURN_ERROR
, TLS_GENERIC_ERROR
,
5370 "Remote target failed to process qGetTLSAddr request" };
5371 throw_exception (e
);
5378 = { RETURN_ERROR
, TLS_GENERIC_ERROR
,
5379 "TLS not supported or disabled on this target" };
5380 throw_exception (e
);
5387 init_remote_ops (void)
5389 remote_ops
.to_shortname
= "remote";
5390 remote_ops
.to_longname
= "Remote serial target in gdb-specific protocol";
5392 "Use a remote computer via a serial line, using a gdb-specific protocol.\n\
5393 Specify the serial device it is connected to\n\
5394 (e.g. /dev/ttyS0, /dev/ttya, COM1, etc.).";
5395 remote_ops
.to_open
= remote_open
;
5396 remote_ops
.to_close
= remote_close
;
5397 remote_ops
.to_detach
= remote_detach
;
5398 remote_ops
.to_disconnect
= remote_disconnect
;
5399 remote_ops
.to_resume
= remote_resume
;
5400 remote_ops
.to_wait
= remote_wait
;
5401 remote_ops
.to_fetch_registers
= remote_fetch_registers
;
5402 remote_ops
.to_store_registers
= remote_store_registers
;
5403 remote_ops
.to_prepare_to_store
= remote_prepare_to_store
;
5404 remote_ops
.deprecated_xfer_memory
= remote_xfer_memory
;
5405 remote_ops
.to_files_info
= remote_files_info
;
5406 remote_ops
.to_insert_breakpoint
= remote_insert_breakpoint
;
5407 remote_ops
.to_remove_breakpoint
= remote_remove_breakpoint
;
5408 remote_ops
.to_stopped_by_watchpoint
= remote_stopped_by_watchpoint
;
5409 remote_ops
.to_stopped_data_address
= remote_stopped_data_address
;
5410 remote_ops
.to_can_use_hw_breakpoint
= remote_check_watch_resources
;
5411 remote_ops
.to_insert_hw_breakpoint
= remote_insert_hw_breakpoint
;
5412 remote_ops
.to_remove_hw_breakpoint
= remote_remove_hw_breakpoint
;
5413 remote_ops
.to_insert_watchpoint
= remote_insert_watchpoint
;
5414 remote_ops
.to_remove_watchpoint
= remote_remove_watchpoint
;
5415 remote_ops
.to_kill
= remote_kill
;
5416 remote_ops
.to_load
= generic_load
;
5417 remote_ops
.to_mourn_inferior
= remote_mourn
;
5418 remote_ops
.to_thread_alive
= remote_thread_alive
;
5419 remote_ops
.to_find_new_threads
= remote_threads_info
;
5420 remote_ops
.to_pid_to_str
= remote_pid_to_str
;
5421 remote_ops
.to_extra_thread_info
= remote_threads_extra_info
;
5422 remote_ops
.to_stop
= remote_stop
;
5423 remote_ops
.to_xfer_partial
= remote_xfer_partial
;
5424 remote_ops
.to_rcmd
= remote_rcmd
;
5425 remote_ops
.to_get_thread_local_address
= remote_get_thread_local_address
;
5426 remote_ops
.to_stratum
= process_stratum
;
5427 remote_ops
.to_has_all_memory
= 1;
5428 remote_ops
.to_has_memory
= 1;
5429 remote_ops
.to_has_stack
= 1;
5430 remote_ops
.to_has_registers
= 1;
5431 remote_ops
.to_has_execution
= 1;
5432 remote_ops
.to_has_thread_control
= tc_schedlock
; /* can lock scheduler */
5433 remote_ops
.to_magic
= OPS_MAGIC
;
5436 /* Set up the extended remote vector by making a copy of the standard
5437 remote vector and adding to it. */
5440 init_extended_remote_ops (void)
5442 extended_remote_ops
= remote_ops
;
5444 extended_remote_ops
.to_shortname
= "extended-remote";
5445 extended_remote_ops
.to_longname
=
5446 "Extended remote serial target in gdb-specific protocol";
5447 extended_remote_ops
.to_doc
=
5448 "Use a remote computer via a serial line, using a gdb-specific protocol.\n\
5449 Specify the serial device it is connected to (e.g. /dev/ttya).",
5450 extended_remote_ops
.to_open
= extended_remote_open
;
5451 extended_remote_ops
.to_create_inferior
= extended_remote_create_inferior
;
5452 extended_remote_ops
.to_mourn_inferior
= extended_remote_mourn
;
5456 remote_can_async_p (void)
5458 /* We're async whenever the serial device is. */
5459 return (current_target
.to_async_mask_value
) && serial_can_async_p (remote_desc
);
5463 remote_is_async_p (void)
5465 /* We're async whenever the serial device is. */
5466 return (current_target
.to_async_mask_value
) && serial_is_async_p (remote_desc
);
5469 /* Pass the SERIAL event on and up to the client. One day this code
5470 will be able to delay notifying the client of an event until the
5471 point where an entire packet has been received. */
5473 static void (*async_client_callback
) (enum inferior_event_type event_type
,
5475 static void *async_client_context
;
5476 static serial_event_ftype remote_async_serial_handler
;
5479 remote_async_serial_handler (struct serial
*scb
, void *context
)
5481 /* Don't propogate error information up to the client. Instead let
5482 the client find out about the error by querying the target. */
5483 async_client_callback (INF_REG_EVENT
, async_client_context
);
5487 remote_async (void (*callback
) (enum inferior_event_type event_type
,
5488 void *context
), void *context
)
5490 if (current_target
.to_async_mask_value
== 0)
5491 internal_error (__FILE__
, __LINE__
,
5492 _("Calling remote_async when async is masked"));
5494 if (callback
!= NULL
)
5496 serial_async (remote_desc
, remote_async_serial_handler
, NULL
);
5497 async_client_callback
= callback
;
5498 async_client_context
= context
;
5501 serial_async (remote_desc
, NULL
, NULL
);
5504 /* Target async and target extended-async.
5506 This are temporary targets, until it is all tested. Eventually
5507 async support will be incorporated int the usual 'remote'
5511 init_remote_async_ops (void)
5513 remote_async_ops
.to_shortname
= "async";
5514 remote_async_ops
.to_longname
=
5515 "Remote serial target in async version of the gdb-specific protocol";
5516 remote_async_ops
.to_doc
=
5517 "Use a remote computer via a serial line, using a gdb-specific protocol.\n\
5518 Specify the serial device it is connected to (e.g. /dev/ttya).";
5519 remote_async_ops
.to_open
= remote_async_open
;
5520 remote_async_ops
.to_close
= remote_close
;
5521 remote_async_ops
.to_detach
= remote_detach
;
5522 remote_async_ops
.to_disconnect
= remote_disconnect
;
5523 remote_async_ops
.to_resume
= remote_async_resume
;
5524 remote_async_ops
.to_wait
= remote_async_wait
;
5525 remote_async_ops
.to_fetch_registers
= remote_fetch_registers
;
5526 remote_async_ops
.to_store_registers
= remote_store_registers
;
5527 remote_async_ops
.to_prepare_to_store
= remote_prepare_to_store
;
5528 remote_async_ops
.deprecated_xfer_memory
= remote_xfer_memory
;
5529 remote_async_ops
.to_files_info
= remote_files_info
;
5530 remote_async_ops
.to_insert_breakpoint
= remote_insert_breakpoint
;
5531 remote_async_ops
.to_remove_breakpoint
= remote_remove_breakpoint
;
5532 remote_async_ops
.to_can_use_hw_breakpoint
= remote_check_watch_resources
;
5533 remote_async_ops
.to_insert_hw_breakpoint
= remote_insert_hw_breakpoint
;
5534 remote_async_ops
.to_remove_hw_breakpoint
= remote_remove_hw_breakpoint
;
5535 remote_async_ops
.to_insert_watchpoint
= remote_insert_watchpoint
;
5536 remote_async_ops
.to_remove_watchpoint
= remote_remove_watchpoint
;
5537 remote_async_ops
.to_stopped_by_watchpoint
= remote_stopped_by_watchpoint
;
5538 remote_async_ops
.to_stopped_data_address
= remote_stopped_data_address
;
5539 remote_async_ops
.to_terminal_inferior
= remote_async_terminal_inferior
;
5540 remote_async_ops
.to_terminal_ours
= remote_async_terminal_ours
;
5541 remote_async_ops
.to_kill
= remote_async_kill
;
5542 remote_async_ops
.to_load
= generic_load
;
5543 remote_async_ops
.to_mourn_inferior
= remote_async_mourn
;
5544 remote_async_ops
.to_thread_alive
= remote_thread_alive
;
5545 remote_async_ops
.to_find_new_threads
= remote_threads_info
;
5546 remote_async_ops
.to_pid_to_str
= remote_pid_to_str
;
5547 remote_async_ops
.to_extra_thread_info
= remote_threads_extra_info
;
5548 remote_async_ops
.to_stop
= remote_stop
;
5549 remote_async_ops
.to_xfer_partial
= remote_xfer_partial
;
5550 remote_async_ops
.to_rcmd
= remote_rcmd
;
5551 remote_async_ops
.to_stratum
= process_stratum
;
5552 remote_async_ops
.to_has_all_memory
= 1;
5553 remote_async_ops
.to_has_memory
= 1;
5554 remote_async_ops
.to_has_stack
= 1;
5555 remote_async_ops
.to_has_registers
= 1;
5556 remote_async_ops
.to_has_execution
= 1;
5557 remote_async_ops
.to_has_thread_control
= tc_schedlock
; /* can lock scheduler */
5558 remote_async_ops
.to_can_async_p
= remote_can_async_p
;
5559 remote_async_ops
.to_is_async_p
= remote_is_async_p
;
5560 remote_async_ops
.to_async
= remote_async
;
5561 remote_async_ops
.to_async_mask_value
= 1;
5562 remote_async_ops
.to_magic
= OPS_MAGIC
;
5565 /* Set up the async extended remote vector by making a copy of the standard
5566 remote vector and adding to it. */
5569 init_extended_async_remote_ops (void)
5571 extended_async_remote_ops
= remote_async_ops
;
5573 extended_async_remote_ops
.to_shortname
= "extended-async";
5574 extended_async_remote_ops
.to_longname
=
5575 "Extended remote serial target in async gdb-specific protocol";
5576 extended_async_remote_ops
.to_doc
=
5577 "Use a remote computer via a serial line, using an async gdb-specific protocol.\n\
5578 Specify the serial device it is connected to (e.g. /dev/ttya).",
5579 extended_async_remote_ops
.to_open
= extended_remote_async_open
;
5580 extended_async_remote_ops
.to_create_inferior
= extended_remote_async_create_inferior
;
5581 extended_async_remote_ops
.to_mourn_inferior
= extended_remote_mourn
;
5585 set_remote_cmd (char *args
, int from_tty
)
5590 show_remote_cmd (char *args
, int from_tty
)
5592 /* FIXME: cagney/2002-06-15: This function should iterate over
5593 remote_show_cmdlist for a list of sub commands to show. */
5594 show_remote_protocol_Z_packet_cmd (gdb_stdout
, from_tty
, NULL
, NULL
);
5595 show_remote_protocol_P_packet_cmd (gdb_stdout
, from_tty
, NULL
, NULL
);
5596 show_remote_protocol_p_packet_cmd (gdb_stdout
, from_tty
, NULL
, NULL
);
5597 show_remote_protocol_qSymbol_packet_cmd (gdb_stdout
, from_tty
, NULL
, NULL
);
5598 show_remote_protocol_vcont_packet_cmd (gdb_stdout
, from_tty
, NULL
, NULL
);
5599 show_remote_protocol_binary_download_cmd (gdb_stdout
, from_tty
, NULL
, NULL
);
5600 show_remote_protocol_qPart_auxv_packet_cmd (gdb_stdout
, from_tty
, NULL
, NULL
);
5601 show_remote_protocol_qGetTLSAddr_packet_cmd (gdb_stdout
, from_tty
, NULL
, NULL
);
5605 build_remote_gdbarch_data (void)
5607 remote_address_size
= TARGET_ADDR_BIT
;
5610 /* Saved pointer to previous owner of the new_objfile event. */
5611 static void (*remote_new_objfile_chain
) (struct objfile
*);
5613 /* Function to be called whenever a new objfile (shlib) is detected. */
5615 remote_new_objfile (struct objfile
*objfile
)
5617 if (remote_desc
!= 0) /* Have a remote connection. */
5619 remote_check_symbols (objfile
);
5621 /* Call predecessor on chain, if any. */
5622 if (remote_new_objfile_chain
!= 0 &&
5624 remote_new_objfile_chain (objfile
);
5628 _initialize_remote (void)
5630 static struct cmd_list_element
*remote_set_cmdlist
;
5631 static struct cmd_list_element
*remote_show_cmdlist
;
5633 /* architecture specific data */
5634 remote_gdbarch_data_handle
=
5635 gdbarch_data_register_post_init (init_remote_state
);
5637 /* Old tacky stuff. NOTE: This comes after the remote protocol so
5638 that the remote protocol has been initialized. */
5639 DEPRECATED_REGISTER_GDBARCH_SWAP (remote_address_size
);
5640 deprecated_register_gdbarch_swap (NULL
, 0, build_remote_gdbarch_data
);
5643 add_target (&remote_ops
);
5645 init_extended_remote_ops ();
5646 add_target (&extended_remote_ops
);
5648 init_remote_async_ops ();
5649 add_target (&remote_async_ops
);
5651 init_extended_async_remote_ops ();
5652 add_target (&extended_async_remote_ops
);
5654 /* Hook into new objfile notification. */
5655 remote_new_objfile_chain
= deprecated_target_new_objfile_hook
;
5656 deprecated_target_new_objfile_hook
= remote_new_objfile
;
5659 init_remote_threadtests ();
5662 /* set/show remote ... */
5664 add_prefix_cmd ("remote", class_maintenance
, set_remote_cmd
, _("\
5665 Remote protocol specific variables\n\
5666 Configure various remote-protocol specific variables such as\n\
5667 the packets being used"),
5668 &remote_set_cmdlist
, "set remote ",
5669 0 /* allow-unknown */, &setlist
);
5670 add_prefix_cmd ("remote", class_maintenance
, show_remote_cmd
, _("\
5671 Remote protocol specific variables\n\
5672 Configure various remote-protocol specific variables such as\n\
5673 the packets being used"),
5674 &remote_show_cmdlist
, "show remote ",
5675 0 /* allow-unknown */, &showlist
);
5677 add_cmd ("compare-sections", class_obscure
, compare_sections_command
, _("\
5678 Compare section data on target to the exec file.\n\
5679 Argument is a single section name (default: all loaded sections)."),
5682 add_cmd ("packet", class_maintenance
, packet_command
, _("\
5683 Send an arbitrary packet to a remote target.\n\
5684 maintenance packet TEXT\n\
5685 If GDB is talking to an inferior via the GDB serial protocol, then\n\
5686 this command sends the string TEXT to the inferior, and displays the\n\
5687 response packet. GDB supplies the initial `$' character, and the\n\
5688 terminating `#' character and checksum."),
5691 add_setshow_boolean_cmd ("remotebreak", no_class
, &remote_break
, _("\
5692 Set whether to send break if interrupted."), _("\
5693 Show whether to send break if interrupted."), _("\
5694 If set, a break, instead of a cntrl-c, is sent to the remote target."),
5695 NULL
, NULL
, /* FIXME: i18n: Whether to send break if interrupted is %s. */
5696 &setlist
, &showlist
);
5698 /* Install commands for configuring memory read/write packets. */
5700 add_cmd ("remotewritesize", no_class
, set_memory_write_packet_size
, _("\
5701 Set the maximum number of bytes per memory write packet (deprecated)."),
5703 add_cmd ("remotewritesize", no_class
, show_memory_write_packet_size
, _("\
5704 Show the maximum number of bytes per memory write packet (deprecated)."),
5706 add_cmd ("memory-write-packet-size", no_class
,
5707 set_memory_write_packet_size
, _("\
5708 Set the maximum number of bytes per memory-write packet.\n\
5709 Specify the number of bytes in a packet or 0 (zero) for the\n\
5710 default packet size. The actual limit is further reduced\n\
5711 dependent on the target. Specify ``fixed'' to disable the\n\
5712 further restriction and ``limit'' to enable that restriction."),
5713 &remote_set_cmdlist
);
5714 add_cmd ("memory-read-packet-size", no_class
,
5715 set_memory_read_packet_size
, _("\
5716 Set the maximum number of bytes per memory-read packet.\n\
5717 Specify the number of bytes in a packet or 0 (zero) for the\n\
5718 default packet size. The actual limit is further reduced\n\
5719 dependent on the target. Specify ``fixed'' to disable the\n\
5720 further restriction and ``limit'' to enable that restriction."),
5721 &remote_set_cmdlist
);
5722 add_cmd ("memory-write-packet-size", no_class
,
5723 show_memory_write_packet_size
,
5724 _("Show the maximum number of bytes per memory-write packet."),
5725 &remote_show_cmdlist
);
5726 add_cmd ("memory-read-packet-size", no_class
,
5727 show_memory_read_packet_size
,
5728 _("Show the maximum number of bytes per memory-read packet."),
5729 &remote_show_cmdlist
);
5731 add_setshow_zinteger_cmd ("hardware-watchpoint-limit", no_class
,
5732 &remote_hw_watchpoint_limit
, _("\
5733 Set the maximum number of target hardware watchpoints."), _("\
5734 Show the maximum number of target hardware watchpoints."), _("\
5735 Specify a negative limit for unlimited."),
5736 NULL
, NULL
, /* FIXME: i18n: The maximum number of target hardware watchpoints is %s. */
5737 &remote_set_cmdlist
, &remote_show_cmdlist
);
5738 add_setshow_zinteger_cmd ("hardware-breakpoint-limit", no_class
,
5739 &remote_hw_breakpoint_limit
, _("\
5740 Set the maximum number of target hardware breakpoints."), _("\
5741 Show the maximum number of target hardware breakpoints."), _("\
5742 Specify a negative limit for unlimited."),
5743 NULL
, NULL
, /* FIXME: i18n: The maximum number of target hardware breakpoints is %s. */
5744 &remote_set_cmdlist
, &remote_show_cmdlist
);
5746 add_setshow_integer_cmd ("remoteaddresssize", class_obscure
,
5747 &remote_address_size
, _("\
5748 Set the maximum size of the address (in bits) in a memory packet."), _("\
5749 Show the maximum size of the address (in bits) in a memory packet."), NULL
,
5751 NULL
, /* FIXME: i18n: */
5752 &setlist
, &showlist
);
5754 add_packet_config_cmd (&remote_protocol_binary_download
,
5755 "X", "binary-download",
5756 set_remote_protocol_binary_download_cmd
,
5757 show_remote_protocol_binary_download_cmd
,
5758 &remote_set_cmdlist
, &remote_show_cmdlist
,
5761 add_packet_config_cmd (&remote_protocol_vcont
,
5762 "vCont", "verbose-resume",
5763 set_remote_protocol_vcont_packet_cmd
,
5764 show_remote_protocol_vcont_packet_cmd
,
5765 &remote_set_cmdlist
, &remote_show_cmdlist
,
5768 add_packet_config_cmd (&remote_protocol_qSymbol
,
5769 "qSymbol", "symbol-lookup",
5770 set_remote_protocol_qSymbol_packet_cmd
,
5771 show_remote_protocol_qSymbol_packet_cmd
,
5772 &remote_set_cmdlist
, &remote_show_cmdlist
,
5775 add_packet_config_cmd (&remote_protocol_P
,
5776 "P", "set-register",
5777 set_remote_protocol_P_packet_cmd
,
5778 show_remote_protocol_P_packet_cmd
,
5779 &remote_set_cmdlist
, &remote_show_cmdlist
,
5782 add_packet_config_cmd (&remote_protocol_p
,
5783 "p", "fetch-register",
5784 set_remote_protocol_p_packet_cmd
,
5785 show_remote_protocol_p_packet_cmd
,
5786 &remote_set_cmdlist
, &remote_show_cmdlist
,
5789 add_packet_config_cmd (&remote_protocol_Z
[Z_PACKET_SOFTWARE_BP
],
5790 "Z0", "software-breakpoint",
5791 set_remote_protocol_Z_software_bp_packet_cmd
,
5792 show_remote_protocol_Z_software_bp_packet_cmd
,
5793 &remote_set_cmdlist
, &remote_show_cmdlist
,
5796 add_packet_config_cmd (&remote_protocol_Z
[Z_PACKET_HARDWARE_BP
],
5797 "Z1", "hardware-breakpoint",
5798 set_remote_protocol_Z_hardware_bp_packet_cmd
,
5799 show_remote_protocol_Z_hardware_bp_packet_cmd
,
5800 &remote_set_cmdlist
, &remote_show_cmdlist
,
5803 add_packet_config_cmd (&remote_protocol_Z
[Z_PACKET_WRITE_WP
],
5804 "Z2", "write-watchpoint",
5805 set_remote_protocol_Z_write_wp_packet_cmd
,
5806 show_remote_protocol_Z_write_wp_packet_cmd
,
5807 &remote_set_cmdlist
, &remote_show_cmdlist
,
5810 add_packet_config_cmd (&remote_protocol_Z
[Z_PACKET_READ_WP
],
5811 "Z3", "read-watchpoint",
5812 set_remote_protocol_Z_read_wp_packet_cmd
,
5813 show_remote_protocol_Z_read_wp_packet_cmd
,
5814 &remote_set_cmdlist
, &remote_show_cmdlist
,
5817 add_packet_config_cmd (&remote_protocol_Z
[Z_PACKET_ACCESS_WP
],
5818 "Z4", "access-watchpoint",
5819 set_remote_protocol_Z_access_wp_packet_cmd
,
5820 show_remote_protocol_Z_access_wp_packet_cmd
,
5821 &remote_set_cmdlist
, &remote_show_cmdlist
,
5824 add_packet_config_cmd (&remote_protocol_qPart_auxv
,
5825 "qPart_auxv", "read-aux-vector",
5826 set_remote_protocol_qPart_auxv_packet_cmd
,
5827 show_remote_protocol_qPart_auxv_packet_cmd
,
5828 &remote_set_cmdlist
, &remote_show_cmdlist
,
5831 add_packet_config_cmd (&remote_protocol_qGetTLSAddr
,
5832 "qGetTLSAddr", "get-thread-local-storage-address",
5833 set_remote_protocol_qGetTLSAddr_packet_cmd
,
5834 show_remote_protocol_qGetTLSAddr_packet_cmd
,
5835 &remote_set_cmdlist
, &remote_show_cmdlist
,
5838 /* Keep the old ``set remote Z-packet ...'' working. */
5839 add_setshow_auto_boolean_cmd ("Z-packet", class_obscure
,
5840 &remote_Z_packet_detect
, _("\
5841 Set use of remote protocol `Z' packets"), _("\
5842 Show use of remote protocol `Z' packets "), _("\
5843 When set, GDB will attempt to use the remote breakpoint and watchpoint\n\
5845 set_remote_protocol_Z_packet_cmd
,
5846 show_remote_protocol_Z_packet_cmd
, /* FIXME: i18n: Use of remote protocol `Z' packets is %s. */
5847 &remote_set_cmdlist
, &remote_show_cmdlist
);
5849 /* Eventually initialize fileio. See fileio.c */
5850 initialize_remote_fileio (remote_set_cmdlist
, remote_show_cmdlist
);