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
, bfd_byte
*);
141 static int remote_remove_breakpoint (CORE_ADDR
, bfd_byte
*);
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 rs
->sizeof_g_packet
= 0;
253 /* Assume a 1:1 regnum<->pnum table. */
254 rs
->regs
= GDBARCH_OBSTACK_CALLOC (gdbarch
, NUM_REGS
+ NUM_PSEUDO_REGS
,
256 for (regnum
= 0; regnum
< NUM_REGS
+ NUM_PSEUDO_REGS
; regnum
++)
258 struct packet_reg
*r
= &rs
->regs
[regnum
];
261 r
->offset
= DEPRECATED_REGISTER_BYTE (regnum
);
262 r
->in_g_packet
= (regnum
< NUM_REGS
);
263 /* ...name = REGISTER_NAME (regnum); */
265 /* Compute packet size by accumulating the size of all registers. */
266 if (regnum
< NUM_REGS
)
267 rs
->sizeof_g_packet
+= register_size (current_gdbarch
, regnum
);
270 /* Default maximum number of characters in a packet body. Many
271 remote stubs have a hardwired buffer size of 400 bytes
272 (c.f. BUFMAX in m68k-stub.c and i386-stub.c). BUFMAX-1 is used
273 as the maximum packet-size to ensure that the packet and an extra
274 NUL character can always fit in the buffer. This stops GDB
275 trashing stubs that try to squeeze an extra NUL into what is
276 already a full buffer (As of 1999-12-04 that was most stubs. */
277 rs
->remote_packet_size
= 400 - 1;
279 /* Should rs->sizeof_g_packet needs more space than the
280 default, adjust the size accordingly. Remember that each byte is
281 encoded as two characters. 32 is the overhead for the packet
282 header / footer. NOTE: cagney/1999-10-26: I suspect that 8
283 (``$NN:G...#NN'') is a better guess, the below has been padded a
285 if (rs
->sizeof_g_packet
> ((rs
->remote_packet_size
- 32) / 2))
286 rs
->remote_packet_size
= (rs
->sizeof_g_packet
* 2 + 32);
288 /* This one is filled in when a ``g'' packet is received. */
289 rs
->actual_register_packet_size
= 0;
294 static struct packet_reg
*
295 packet_reg_from_regnum (struct remote_state
*rs
, long regnum
)
297 if (regnum
< 0 && regnum
>= NUM_REGS
+ NUM_PSEUDO_REGS
)
301 struct packet_reg
*r
= &rs
->regs
[regnum
];
302 gdb_assert (r
->regnum
== regnum
);
307 static struct packet_reg
*
308 packet_reg_from_pnum (struct remote_state
*rs
, LONGEST pnum
)
311 for (i
= 0; i
< NUM_REGS
+ NUM_PSEUDO_REGS
; i
++)
313 struct packet_reg
*r
= &rs
->regs
[i
];
320 /* FIXME: graces/2002-08-08: These variables should eventually be
321 bound to an instance of the target object (as in gdbarch-tdep()),
322 when such a thing exists. */
324 /* This is set to the data address of the access causing the target
325 to stop for a watchpoint. */
326 static CORE_ADDR remote_watch_data_address
;
328 /* This is non-zero if taregt stopped for a watchpoint. */
329 static int remote_stopped_by_watchpoint_p
;
332 static struct target_ops remote_ops
;
334 static struct target_ops extended_remote_ops
;
336 /* Temporary target ops. Just like the remote_ops and
337 extended_remote_ops, but with asynchronous support. */
338 static struct target_ops remote_async_ops
;
340 static struct target_ops extended_async_remote_ops
;
342 /* FIXME: cagney/1999-09-23: Even though getpkt was called with
343 ``forever'' still use the normal timeout mechanism. This is
344 currently used by the ASYNC code to guarentee that target reads
345 during the initial connect always time-out. Once getpkt has been
346 modified to return a timeout indication and, in turn
347 remote_wait()/wait_for_inferior() have gained a timeout parameter
349 static int wait_forever_enabled_p
= 1;
352 /* This variable chooses whether to send a ^C or a break when the user
353 requests program interruption. Although ^C is usually what remote
354 systems expect, and that is the default here, sometimes a break is
355 preferable instead. */
357 static int remote_break
;
359 /* Descriptor for I/O to remote machine. Initialize it to NULL so that
360 remote_open knows that we don't have a file open when the program
362 static struct serial
*remote_desc
= NULL
;
364 /* This variable sets the number of bits in an address that are to be
365 sent in a memory ("M" or "m") packet. Normally, after stripping
366 leading zeros, the entire address would be sent. This variable
367 restricts the address to REMOTE_ADDRESS_SIZE bits. HISTORY: The
368 initial implementation of remote.c restricted the address sent in
369 memory packets to ``host::sizeof long'' bytes - (typically 32
370 bits). Consequently, for 64 bit targets, the upper 32 bits of an
371 address was never sent. Since fixing this bug may cause a break in
372 some remote targets this variable is principly provided to
373 facilitate backward compatibility. */
375 static int remote_address_size
;
377 /* Tempoary to track who currently owns the terminal. See
378 target_async_terminal_* for more details. */
380 static int remote_async_terminal_ours_p
;
383 /* User configurable variables for the number of characters in a
384 memory read/write packet. MIN ((rs->remote_packet_size),
385 rs->sizeof_g_packet) is the default. Some targets need smaller
386 values (fifo overruns, et.al.) and some users need larger values
387 (speed up transfers). The variables ``preferred_*'' (the user
388 request), ``current_*'' (what was actually set) and ``forced_*''
389 (Positive - a soft limit, negative - a hard limit). */
391 struct memory_packet_config
398 /* Compute the current size of a read/write packet. Since this makes
399 use of ``actual_register_packet_size'' the computation is dynamic. */
402 get_memory_packet_size (struct memory_packet_config
*config
)
404 struct remote_state
*rs
= get_remote_state ();
405 /* NOTE: The somewhat arbitrary 16k comes from the knowledge (folk
406 law?) that some hosts don't cope very well with large alloca()
407 calls. Eventually the alloca() code will be replaced by calls to
408 xmalloc() and make_cleanups() allowing this restriction to either
409 be lifted or removed. */
410 #ifndef MAX_REMOTE_PACKET_SIZE
411 #define MAX_REMOTE_PACKET_SIZE 16384
413 /* NOTE: 20 ensures we can write at least one byte. */
414 #ifndef MIN_REMOTE_PACKET_SIZE
415 #define MIN_REMOTE_PACKET_SIZE 20
420 if (config
->size
<= 0)
421 what_they_get
= MAX_REMOTE_PACKET_SIZE
;
423 what_they_get
= config
->size
;
427 what_they_get
= (rs
->remote_packet_size
);
428 /* Limit the packet to the size specified by the user. */
430 && what_they_get
> config
->size
)
431 what_they_get
= config
->size
;
432 /* Limit it to the size of the targets ``g'' response. */
433 if ((rs
->actual_register_packet_size
) > 0
434 && what_they_get
> (rs
->actual_register_packet_size
))
435 what_they_get
= (rs
->actual_register_packet_size
);
437 if (what_they_get
> MAX_REMOTE_PACKET_SIZE
)
438 what_they_get
= MAX_REMOTE_PACKET_SIZE
;
439 if (what_they_get
< MIN_REMOTE_PACKET_SIZE
)
440 what_they_get
= MIN_REMOTE_PACKET_SIZE
;
441 return what_they_get
;
444 /* Update the size of a read/write packet. If they user wants
445 something really big then do a sanity check. */
448 set_memory_packet_size (char *args
, struct memory_packet_config
*config
)
450 int fixed_p
= config
->fixed_p
;
451 long size
= config
->size
;
453 error (_("Argument required (integer, `fixed' or `limited')."));
454 else if (strcmp (args
, "hard") == 0
455 || strcmp (args
, "fixed") == 0)
457 else if (strcmp (args
, "soft") == 0
458 || strcmp (args
, "limit") == 0)
463 size
= strtoul (args
, &end
, 0);
465 error (_("Invalid %s (bad syntax)."), config
->name
);
467 /* Instead of explicitly capping the size of a packet to
468 MAX_REMOTE_PACKET_SIZE or dissallowing it, the user is
469 instead allowed to set the size to something arbitrarily
471 if (size
> MAX_REMOTE_PACKET_SIZE
)
472 error (_("Invalid %s (too large)."), config
->name
);
476 if (fixed_p
&& !config
->fixed_p
)
478 if (! query (_("The target may not be able to correctly handle a %s\n"
479 "of %ld bytes. Change the packet size? "),
481 error (_("Packet size not changed."));
483 /* Update the config. */
484 config
->fixed_p
= fixed_p
;
489 show_memory_packet_size (struct memory_packet_config
*config
)
491 printf_filtered (_("The %s is %ld. "), config
->name
, config
->size
);
493 printf_filtered (_("Packets are fixed at %ld bytes.\n"),
494 get_memory_packet_size (config
));
496 printf_filtered (_("Packets are limited to %ld bytes.\n"),
497 get_memory_packet_size (config
));
500 static struct memory_packet_config memory_write_packet_config
=
502 "memory-write-packet-size",
506 set_memory_write_packet_size (char *args
, int from_tty
)
508 set_memory_packet_size (args
, &memory_write_packet_config
);
512 show_memory_write_packet_size (char *args
, int from_tty
)
514 show_memory_packet_size (&memory_write_packet_config
);
518 get_memory_write_packet_size (void)
520 return get_memory_packet_size (&memory_write_packet_config
);
523 static struct memory_packet_config memory_read_packet_config
=
525 "memory-read-packet-size",
529 set_memory_read_packet_size (char *args
, int from_tty
)
531 set_memory_packet_size (args
, &memory_read_packet_config
);
535 show_memory_read_packet_size (char *args
, int from_tty
)
537 show_memory_packet_size (&memory_read_packet_config
);
541 get_memory_read_packet_size (void)
543 struct remote_state
*rs
= get_remote_state ();
544 long size
= get_memory_packet_size (&memory_read_packet_config
);
545 /* FIXME: cagney/1999-11-07: Functions like getpkt() need to get an
546 extra buffer size argument before the memory read size can be
547 increased beyond (rs->remote_packet_size). */
548 if (size
> (rs
->remote_packet_size
))
549 size
= (rs
->remote_packet_size
);
554 /* Generic configuration support for packets the stub optionally
555 supports. Allows the user to specify the use of the packet as well
556 as allowing GDB to auto-detect support in the remote stub. */
560 PACKET_SUPPORT_UNKNOWN
= 0,
569 enum auto_boolean detect
;
570 enum packet_support support
;
573 /* Analyze a packet's return value and update the packet config
584 update_packet_config (struct packet_config
*config
)
586 switch (config
->detect
)
588 case AUTO_BOOLEAN_TRUE
:
589 config
->support
= PACKET_ENABLE
;
591 case AUTO_BOOLEAN_FALSE
:
592 config
->support
= PACKET_DISABLE
;
594 case AUTO_BOOLEAN_AUTO
:
595 config
->support
= PACKET_SUPPORT_UNKNOWN
;
601 show_packet_config_cmd (struct packet_config
*config
)
603 char *support
= "internal-error";
604 switch (config
->support
)
610 support
= "disabled";
612 case PACKET_SUPPORT_UNKNOWN
:
616 switch (config
->detect
)
618 case AUTO_BOOLEAN_AUTO
:
619 printf_filtered (_("Support for remote protocol `%s' (%s) packet is auto-detected, currently %s.\n"),
620 config
->name
, config
->title
, support
);
622 case AUTO_BOOLEAN_TRUE
:
623 case AUTO_BOOLEAN_FALSE
:
624 printf_filtered (_("Support for remote protocol `%s' (%s) packet is currently %s.\n"),
625 config
->name
, config
->title
, support
);
631 add_packet_config_cmd (struct packet_config
*config
,
634 cmd_sfunc_ftype
*set_func
,
635 show_value_ftype
*show_func
,
636 struct cmd_list_element
**set_remote_list
,
637 struct cmd_list_element
**show_remote_list
,
645 config
->title
= title
;
646 config
->detect
= AUTO_BOOLEAN_AUTO
;
647 config
->support
= PACKET_SUPPORT_UNKNOWN
;
648 set_doc
= xstrprintf ("Set use of remote protocol `%s' (%s) packet",
650 show_doc
= xstrprintf ("Show current use of remote protocol `%s' (%s) packet",
652 /* set/show TITLE-packet {auto,on,off} */
653 cmd_name
= xstrprintf ("%s-packet", title
);
654 add_setshow_auto_boolean_cmd (cmd_name
, class_obscure
,
655 &config
->detect
, set_doc
, show_doc
, NULL
, /* help_doc */
657 set_remote_list
, show_remote_list
);
658 /* set/show remote NAME-packet {auto,on,off} -- legacy. */
662 legacy_name
= xstrprintf ("%s-packet", name
);
663 add_alias_cmd (legacy_name
, cmd_name
, class_obscure
, 0,
665 add_alias_cmd (legacy_name
, cmd_name
, class_obscure
, 0,
670 static enum packet_result
671 packet_ok (const char *buf
, struct packet_config
*config
)
675 /* The stub recognized the packet request. Check that the
676 operation succeeded. */
677 switch (config
->support
)
679 case PACKET_SUPPORT_UNKNOWN
:
681 fprintf_unfiltered (gdb_stdlog
,
682 "Packet %s (%s) is supported\n",
683 config
->name
, config
->title
);
684 config
->support
= PACKET_ENABLE
;
687 internal_error (__FILE__
, __LINE__
,
688 _("packet_ok: attempt to use a disabled packet"));
693 if (buf
[0] == 'O' && buf
[1] == 'K' && buf
[2] == '\0')
694 /* "OK" - definitly OK. */
697 && isxdigit (buf
[1]) && isxdigit (buf
[2])
699 /* "Enn" - definitly an error. */
701 /* The packet may or may not be OK. Just assume it is. */
706 /* The stub does not support the packet. */
707 switch (config
->support
)
710 if (config
->detect
== AUTO_BOOLEAN_AUTO
)
711 /* If the stub previously indicated that the packet was
712 supported then there is a protocol error.. */
713 error (_("Protocol error: %s (%s) conflicting enabled responses."),
714 config
->name
, config
->title
);
716 /* The user set it wrong. */
717 error (_("Enabled packet %s (%s) not recognized by stub"),
718 config
->name
, config
->title
);
720 case PACKET_SUPPORT_UNKNOWN
:
722 fprintf_unfiltered (gdb_stdlog
,
723 "Packet %s (%s) is NOT supported\n",
724 config
->name
, config
->title
);
725 config
->support
= PACKET_DISABLE
;
730 return PACKET_UNKNOWN
;
734 /* Should we try the 'vCont' (descriptive resume) request? */
735 static struct packet_config remote_protocol_vcont
;
738 set_remote_protocol_vcont_packet_cmd (char *args
, int from_tty
,
739 struct cmd_list_element
*c
)
741 update_packet_config (&remote_protocol_vcont
);
745 show_remote_protocol_vcont_packet_cmd (struct ui_file
*file
, int from_tty
,
746 struct cmd_list_element
*c
,
749 show_packet_config_cmd (&remote_protocol_vcont
);
752 /* Should we try the 'qSymbol' (target symbol lookup service) request? */
753 static struct packet_config remote_protocol_qSymbol
;
756 set_remote_protocol_qSymbol_packet_cmd (char *args
, int from_tty
,
757 struct cmd_list_element
*c
)
759 update_packet_config (&remote_protocol_qSymbol
);
763 show_remote_protocol_qSymbol_packet_cmd (struct ui_file
*file
, int from_tty
,
764 struct cmd_list_element
*c
,
767 show_packet_config_cmd (&remote_protocol_qSymbol
);
770 /* Should we try the 'P' (set register) request? */
772 static struct packet_config remote_protocol_P
;
775 set_remote_protocol_P_packet_cmd (char *args
, int from_tty
,
776 struct cmd_list_element
*c
)
778 update_packet_config (&remote_protocol_P
);
782 show_remote_protocol_P_packet_cmd (struct ui_file
*file
, int from_tty
,
783 struct cmd_list_element
*c
,
786 show_packet_config_cmd (&remote_protocol_P
);
789 /* Should we try one of the 'Z' requests? */
793 Z_PACKET_SOFTWARE_BP
,
794 Z_PACKET_HARDWARE_BP
,
801 static struct packet_config remote_protocol_Z
[NR_Z_PACKET_TYPES
];
803 /* FIXME: Instead of having all these boiler plate functions, the
804 command callback should include a context argument. */
807 set_remote_protocol_Z_software_bp_packet_cmd (char *args
, int from_tty
,
808 struct cmd_list_element
*c
)
810 update_packet_config (&remote_protocol_Z
[Z_PACKET_SOFTWARE_BP
]);
814 show_remote_protocol_Z_software_bp_packet_cmd (struct ui_file
*file
, int from_tty
,
815 struct cmd_list_element
*c
,
818 show_packet_config_cmd (&remote_protocol_Z
[Z_PACKET_SOFTWARE_BP
]);
822 set_remote_protocol_Z_hardware_bp_packet_cmd (char *args
, int from_tty
,
823 struct cmd_list_element
*c
)
825 update_packet_config (&remote_protocol_Z
[Z_PACKET_HARDWARE_BP
]);
829 show_remote_protocol_Z_hardware_bp_packet_cmd (struct ui_file
*file
, int from_tty
,
830 struct cmd_list_element
*c
,
833 show_packet_config_cmd (&remote_protocol_Z
[Z_PACKET_HARDWARE_BP
]);
837 set_remote_protocol_Z_write_wp_packet_cmd (char *args
, int from_tty
,
838 struct cmd_list_element
*c
)
840 update_packet_config (&remote_protocol_Z
[Z_PACKET_WRITE_WP
]);
844 show_remote_protocol_Z_write_wp_packet_cmd (struct ui_file
*file
, int from_tty
,
845 struct cmd_list_element
*c
,
848 show_packet_config_cmd (&remote_protocol_Z
[Z_PACKET_WRITE_WP
]);
852 set_remote_protocol_Z_read_wp_packet_cmd (char *args
, int from_tty
,
853 struct cmd_list_element
*c
)
855 update_packet_config (&remote_protocol_Z
[Z_PACKET_READ_WP
]);
859 show_remote_protocol_Z_read_wp_packet_cmd (struct ui_file
*file
, int from_tty
,
860 struct cmd_list_element
*c
,
863 show_packet_config_cmd (&remote_protocol_Z
[Z_PACKET_READ_WP
]);
867 set_remote_protocol_Z_access_wp_packet_cmd (char *args
, int from_tty
,
868 struct cmd_list_element
*c
)
870 update_packet_config (&remote_protocol_Z
[Z_PACKET_ACCESS_WP
]);
874 show_remote_protocol_Z_access_wp_packet_cmd (struct ui_file
*file
, int from_tty
,
875 struct cmd_list_element
*c
,
878 show_packet_config_cmd (&remote_protocol_Z
[Z_PACKET_ACCESS_WP
]);
881 /* For compatibility with older distributions. Provide a ``set remote
882 Z-packet ...'' command that updates all the Z packet types. */
884 static enum auto_boolean remote_Z_packet_detect
;
887 set_remote_protocol_Z_packet_cmd (char *args
, int from_tty
,
888 struct cmd_list_element
*c
)
891 for (i
= 0; i
< NR_Z_PACKET_TYPES
; i
++)
893 remote_protocol_Z
[i
].detect
= remote_Z_packet_detect
;
894 update_packet_config (&remote_protocol_Z
[i
]);
899 show_remote_protocol_Z_packet_cmd (struct ui_file
*file
, int from_tty
,
900 struct cmd_list_element
*c
,
904 for (i
= 0; i
< NR_Z_PACKET_TYPES
; i
++)
906 show_packet_config_cmd (&remote_protocol_Z
[i
]);
910 /* Should we try the 'X' (remote binary download) packet?
912 This variable (available to the user via "set remote X-packet")
913 dictates whether downloads are sent in binary (via the 'X' packet).
914 We assume that the stub can, and attempt to do it. This will be
915 cleared if the stub does not understand it. This switch is still
916 needed, though in cases when the packet is supported in the stub,
917 but the connection does not allow it (i.e., 7-bit serial connection
920 static struct packet_config remote_protocol_binary_download
;
922 /* Should we try the 'ThreadInfo' query packet?
924 This variable (NOT available to the user: auto-detect only!)
925 determines whether GDB will use the new, simpler "ThreadInfo"
926 query or the older, more complex syntax for thread queries.
927 This is an auto-detect variable (set to true at each connect,
928 and set to false when the target fails to recognize it). */
930 static int use_threadinfo_query
;
931 static int use_threadextra_query
;
934 set_remote_protocol_binary_download_cmd (char *args
,
936 struct cmd_list_element
*c
)
938 update_packet_config (&remote_protocol_binary_download
);
942 show_remote_protocol_binary_download_cmd (struct ui_file
*file
, int from_tty
,
943 struct cmd_list_element
*c
,
946 show_packet_config_cmd (&remote_protocol_binary_download
);
949 /* Should we try the 'qPart:auxv' (target auxiliary vector read) request? */
950 static struct packet_config remote_protocol_qPart_auxv
;
953 set_remote_protocol_qPart_auxv_packet_cmd (char *args
, int from_tty
,
954 struct cmd_list_element
*c
)
956 update_packet_config (&remote_protocol_qPart_auxv
);
960 show_remote_protocol_qPart_auxv_packet_cmd (struct ui_file
*file
, int from_tty
,
961 struct cmd_list_element
*c
,
964 show_packet_config_cmd (&remote_protocol_qPart_auxv
);
967 /* Should we try the 'qGetTLSAddr' (Get Thread Local Storage Address) request? */
968 static struct packet_config remote_protocol_qGetTLSAddr
;
971 set_remote_protocol_qGetTLSAddr_packet_cmd (char *args
, int from_tty
,
972 struct cmd_list_element
*c
)
974 update_packet_config (&remote_protocol_qGetTLSAddr
);
978 show_remote_protocol_qGetTLSAddr_packet_cmd (struct ui_file
*file
, int from_tty
,
979 struct cmd_list_element
*c
,
982 show_packet_config_cmd (&remote_protocol_qGetTLSAddr
);
985 static struct packet_config remote_protocol_p
;
988 set_remote_protocol_p_packet_cmd (char *args
, int from_tty
,
989 struct cmd_list_element
*c
)
991 update_packet_config (&remote_protocol_p
);
995 show_remote_protocol_p_packet_cmd (struct ui_file
*file
, int from_tty
,
996 struct cmd_list_element
*c
,
999 show_packet_config_cmd (&remote_protocol_p
);
1004 /* Tokens for use by the asynchronous signal handlers for SIGINT. */
1005 static void *sigint_remote_twice_token
;
1006 static void *sigint_remote_token
;
1008 /* These are pointers to hook functions that may be set in order to
1009 modify resume/wait behavior for a particular architecture. */
1011 void (*deprecated_target_resume_hook
) (void);
1012 void (*deprecated_target_wait_loop_hook
) (void);
1016 /* These are the threads which we last sent to the remote system.
1017 -1 for all or -2 for not sent yet. */
1018 static int general_thread
;
1019 static int continue_thread
;
1021 /* Call this function as a result of
1022 1) A halt indication (T packet) containing a thread id
1023 2) A direct query of currthread
1024 3) Successful execution of set thread
1028 record_currthread (int currthread
)
1030 general_thread
= currthread
;
1032 /* If this is a new thread, add it to GDB's thread list.
1033 If we leave it up to WFI to do this, bad things will happen. */
1034 if (!in_thread_list (pid_to_ptid (currthread
)))
1036 add_thread (pid_to_ptid (currthread
));
1037 ui_out_text (uiout
, "[New ");
1038 ui_out_text (uiout
, target_pid_to_str (pid_to_ptid (currthread
)));
1039 ui_out_text (uiout
, "]\n");
1043 #define MAGIC_NULL_PID 42000
1046 set_thread (int th
, int gen
)
1048 struct remote_state
*rs
= get_remote_state ();
1049 char *buf
= alloca (rs
->remote_packet_size
);
1050 int state
= gen
? general_thread
: continue_thread
;
1056 buf
[1] = gen
? 'g' : 'c';
1057 if (th
== MAGIC_NULL_PID
)
1063 sprintf (&buf
[2], "-%x", -th
);
1065 sprintf (&buf
[2], "%x", th
);
1067 getpkt (buf
, (rs
->remote_packet_size
), 0);
1069 general_thread
= th
;
1071 continue_thread
= th
;
1074 /* Return nonzero if the thread TH is still alive on the remote system. */
1077 remote_thread_alive (ptid_t ptid
)
1079 int tid
= PIDGET (ptid
);
1083 sprintf (buf
, "T-%08x", -tid
);
1085 sprintf (buf
, "T%08x", tid
);
1087 getpkt (buf
, sizeof (buf
), 0);
1088 return (buf
[0] == 'O' && buf
[1] == 'K');
1091 /* About these extended threadlist and threadinfo packets. They are
1092 variable length packets but, the fields within them are often fixed
1093 length. They are redundent enough to send over UDP as is the
1094 remote protocol in general. There is a matching unit test module
1097 #define OPAQUETHREADBYTES 8
1099 /* a 64 bit opaque identifier */
1100 typedef unsigned char threadref
[OPAQUETHREADBYTES
];
1102 /* WARNING: This threadref data structure comes from the remote O.S.,
1103 libstub protocol encoding, and remote.c. it is not particularly
1106 /* Right now, the internal structure is int. We want it to be bigger.
1110 typedef int gdb_threadref
; /* Internal GDB thread reference. */
1112 /* gdb_ext_thread_info is an internal GDB data structure which is
1113 equivalint to the reply of the remote threadinfo packet. */
1115 struct gdb_ext_thread_info
1117 threadref threadid
; /* External form of thread reference. */
1118 int active
; /* Has state interesting to GDB?
1120 char display
[256]; /* Brief state display, name,
1121 blocked/syspended. */
1122 char shortname
[32]; /* To be used to name threads. */
1123 char more_display
[256]; /* Long info, statistics, queue depth,
1127 /* The volume of remote transfers can be limited by submitting
1128 a mask containing bits specifying the desired information.
1129 Use a union of these values as the 'selection' parameter to
1130 get_thread_info. FIXME: Make these TAG names more thread specific.
1133 #define TAG_THREADID 1
1134 #define TAG_EXISTS 2
1135 #define TAG_DISPLAY 4
1136 #define TAG_THREADNAME 8
1137 #define TAG_MOREDISPLAY 16
1139 #define BUF_THREAD_ID_SIZE (OPAQUETHREADBYTES * 2)
1141 char *unpack_varlen_hex (char *buff
, ULONGEST
*result
);
1143 static char *unpack_nibble (char *buf
, int *val
);
1145 static char *pack_nibble (char *buf
, int nibble
);
1147 static char *pack_hex_byte (char *pkt
, int /* unsigned char */ byte
);
1149 static char *unpack_byte (char *buf
, int *value
);
1151 static char *pack_int (char *buf
, int value
);
1153 static char *unpack_int (char *buf
, int *value
);
1155 static char *unpack_string (char *src
, char *dest
, int length
);
1157 static char *pack_threadid (char *pkt
, threadref
*id
);
1159 static char *unpack_threadid (char *inbuf
, threadref
*id
);
1161 void int_to_threadref (threadref
*id
, int value
);
1163 static int threadref_to_int (threadref
*ref
);
1165 static void copy_threadref (threadref
*dest
, threadref
*src
);
1167 static int threadmatch (threadref
*dest
, threadref
*src
);
1169 static char *pack_threadinfo_request (char *pkt
, int mode
,
1172 static int remote_unpack_thread_info_response (char *pkt
,
1173 threadref
*expectedref
,
1174 struct gdb_ext_thread_info
1178 static int remote_get_threadinfo (threadref
*threadid
,
1179 int fieldset
, /*TAG mask */
1180 struct gdb_ext_thread_info
*info
);
1182 static char *pack_threadlist_request (char *pkt
, int startflag
,
1184 threadref
*nextthread
);
1186 static int parse_threadlist_response (char *pkt
,
1188 threadref
*original_echo
,
1189 threadref
*resultlist
,
1192 static int remote_get_threadlist (int startflag
,
1193 threadref
*nextthread
,
1197 threadref
*threadlist
);
1199 typedef int (*rmt_thread_action
) (threadref
*ref
, void *context
);
1201 static int remote_threadlist_iterator (rmt_thread_action stepfunction
,
1202 void *context
, int looplimit
);
1204 static int remote_newthread_step (threadref
*ref
, void *context
);
1206 /* Encode 64 bits in 16 chars of hex. */
1208 static const char hexchars
[] = "0123456789abcdef";
1211 ishex (int ch
, int *val
)
1213 if ((ch
>= 'a') && (ch
<= 'f'))
1215 *val
= ch
- 'a' + 10;
1218 if ((ch
>= 'A') && (ch
<= 'F'))
1220 *val
= ch
- 'A' + 10;
1223 if ((ch
>= '0') && (ch
<= '9'))
1234 if (ch
>= 'a' && ch
<= 'f')
1235 return ch
- 'a' + 10;
1236 if (ch
>= '0' && ch
<= '9')
1238 if (ch
>= 'A' && ch
<= 'F')
1239 return ch
- 'A' + 10;
1244 stub_unpack_int (char *buff
, int fieldlength
)
1251 nibble
= stubhex (*buff
++);
1255 retval
= retval
<< 4;
1261 unpack_varlen_hex (char *buff
, /* packet to parse */
1267 while (ishex (*buff
, &nibble
))
1270 retval
= retval
<< 4;
1271 retval
|= nibble
& 0x0f;
1278 unpack_nibble (char *buf
, int *val
)
1280 ishex (*buf
++, val
);
1285 pack_nibble (char *buf
, int nibble
)
1287 *buf
++ = hexchars
[(nibble
& 0x0f)];
1292 pack_hex_byte (char *pkt
, int byte
)
1294 *pkt
++ = hexchars
[(byte
>> 4) & 0xf];
1295 *pkt
++ = hexchars
[(byte
& 0xf)];
1300 unpack_byte (char *buf
, int *value
)
1302 *value
= stub_unpack_int (buf
, 2);
1307 pack_int (char *buf
, int value
)
1309 buf
= pack_hex_byte (buf
, (value
>> 24) & 0xff);
1310 buf
= pack_hex_byte (buf
, (value
>> 16) & 0xff);
1311 buf
= pack_hex_byte (buf
, (value
>> 8) & 0x0ff);
1312 buf
= pack_hex_byte (buf
, (value
& 0xff));
1317 unpack_int (char *buf
, int *value
)
1319 *value
= stub_unpack_int (buf
, 8);
1323 #if 0 /* Currently unused, uncomment when needed. */
1324 static char *pack_string (char *pkt
, char *string
);
1327 pack_string (char *pkt
, char *string
)
1332 len
= strlen (string
);
1334 len
= 200; /* Bigger than most GDB packets, junk??? */
1335 pkt
= pack_hex_byte (pkt
, len
);
1339 if ((ch
== '\0') || (ch
== '#'))
1340 ch
= '*'; /* Protect encapsulation. */
1345 #endif /* 0 (unused) */
1348 unpack_string (char *src
, char *dest
, int length
)
1357 pack_threadid (char *pkt
, threadref
*id
)
1360 unsigned char *altid
;
1362 altid
= (unsigned char *) id
;
1363 limit
= pkt
+ BUF_THREAD_ID_SIZE
;
1365 pkt
= pack_hex_byte (pkt
, *altid
++);
1371 unpack_threadid (char *inbuf
, threadref
*id
)
1374 char *limit
= inbuf
+ BUF_THREAD_ID_SIZE
;
1377 altref
= (char *) id
;
1379 while (inbuf
< limit
)
1381 x
= stubhex (*inbuf
++);
1382 y
= stubhex (*inbuf
++);
1383 *altref
++ = (x
<< 4) | y
;
1388 /* Externally, threadrefs are 64 bits but internally, they are still
1389 ints. This is due to a mismatch of specifications. We would like
1390 to use 64bit thread references internally. This is an adapter
1394 int_to_threadref (threadref
*id
, int value
)
1396 unsigned char *scan
;
1398 scan
= (unsigned char *) id
;
1404 *scan
++ = (value
>> 24) & 0xff;
1405 *scan
++ = (value
>> 16) & 0xff;
1406 *scan
++ = (value
>> 8) & 0xff;
1407 *scan
++ = (value
& 0xff);
1411 threadref_to_int (threadref
*ref
)
1414 unsigned char *scan
;
1416 scan
= (char *) ref
;
1420 value
= (value
<< 8) | ((*scan
++) & 0xff);
1425 copy_threadref (threadref
*dest
, threadref
*src
)
1428 unsigned char *csrc
, *cdest
;
1430 csrc
= (unsigned char *) src
;
1431 cdest
= (unsigned char *) dest
;
1438 threadmatch (threadref
*dest
, threadref
*src
)
1440 /* Things are broken right now, so just assume we got a match. */
1442 unsigned char *srcp
, *destp
;
1444 srcp
= (char *) src
;
1445 destp
= (char *) dest
;
1449 result
&= (*srcp
++ == *destp
++) ? 1 : 0;
1456 threadid:1, # always request threadid
1463 /* Encoding: 'Q':8,'P':8,mask:32,threadid:64 */
1466 pack_threadinfo_request (char *pkt
, int mode
, threadref
*id
)
1468 *pkt
++ = 'q'; /* Info Query */
1469 *pkt
++ = 'P'; /* process or thread info */
1470 pkt
= pack_int (pkt
, mode
); /* mode */
1471 pkt
= pack_threadid (pkt
, id
); /* threadid */
1472 *pkt
= '\0'; /* terminate */
1476 /* These values tag the fields in a thread info response packet. */
1477 /* Tagging the fields allows us to request specific fields and to
1478 add more fields as time goes by. */
1480 #define TAG_THREADID 1 /* Echo the thread identifier. */
1481 #define TAG_EXISTS 2 /* Is this process defined enough to
1482 fetch registers and its stack? */
1483 #define TAG_DISPLAY 4 /* A short thing maybe to put on a window */
1484 #define TAG_THREADNAME 8 /* string, maps 1-to-1 with a thread is. */
1485 #define TAG_MOREDISPLAY 16 /* Whatever the kernel wants to say about
1489 remote_unpack_thread_info_response (char *pkt
, threadref
*expectedref
,
1490 struct gdb_ext_thread_info
*info
)
1492 struct remote_state
*rs
= get_remote_state ();
1496 char *limit
= pkt
+ (rs
->remote_packet_size
); /* plausable parsing limit */
1499 /* info->threadid = 0; FIXME: implement zero_threadref. */
1501 info
->display
[0] = '\0';
1502 info
->shortname
[0] = '\0';
1503 info
->more_display
[0] = '\0';
1505 /* Assume the characters indicating the packet type have been
1507 pkt
= unpack_int (pkt
, &mask
); /* arg mask */
1508 pkt
= unpack_threadid (pkt
, &ref
);
1511 warning (_("Incomplete response to threadinfo request."));
1512 if (!threadmatch (&ref
, expectedref
))
1513 { /* This is an answer to a different request. */
1514 warning (_("ERROR RMT Thread info mismatch."));
1517 copy_threadref (&info
->threadid
, &ref
);
1519 /* Loop on tagged fields , try to bail if somthing goes wrong. */
1521 /* Packets are terminated with nulls. */
1522 while ((pkt
< limit
) && mask
&& *pkt
)
1524 pkt
= unpack_int (pkt
, &tag
); /* tag */
1525 pkt
= unpack_byte (pkt
, &length
); /* length */
1526 if (!(tag
& mask
)) /* Tags out of synch with mask. */
1528 warning (_("ERROR RMT: threadinfo tag mismatch."));
1532 if (tag
== TAG_THREADID
)
1536 warning (_("ERROR RMT: length of threadid is not 16."));
1540 pkt
= unpack_threadid (pkt
, &ref
);
1541 mask
= mask
& ~TAG_THREADID
;
1544 if (tag
== TAG_EXISTS
)
1546 info
->active
= stub_unpack_int (pkt
, length
);
1548 mask
= mask
& ~(TAG_EXISTS
);
1551 warning (_("ERROR RMT: 'exists' length too long."));
1557 if (tag
== TAG_THREADNAME
)
1559 pkt
= unpack_string (pkt
, &info
->shortname
[0], length
);
1560 mask
= mask
& ~TAG_THREADNAME
;
1563 if (tag
== TAG_DISPLAY
)
1565 pkt
= unpack_string (pkt
, &info
->display
[0], length
);
1566 mask
= mask
& ~TAG_DISPLAY
;
1569 if (tag
== TAG_MOREDISPLAY
)
1571 pkt
= unpack_string (pkt
, &info
->more_display
[0], length
);
1572 mask
= mask
& ~TAG_MOREDISPLAY
;
1575 warning (_("ERROR RMT: unknown thread info tag."));
1576 break; /* Not a tag we know about. */
1582 remote_get_threadinfo (threadref
*threadid
, int fieldset
, /* TAG mask */
1583 struct gdb_ext_thread_info
*info
)
1585 struct remote_state
*rs
= get_remote_state ();
1587 char *threadinfo_pkt
= alloca (rs
->remote_packet_size
);
1589 pack_threadinfo_request (threadinfo_pkt
, fieldset
, threadid
);
1590 putpkt (threadinfo_pkt
);
1591 getpkt (threadinfo_pkt
, (rs
->remote_packet_size
), 0);
1592 result
= remote_unpack_thread_info_response (threadinfo_pkt
+ 2,
1597 /* Format: i'Q':8,i"L":8,initflag:8,batchsize:16,lastthreadid:32 */
1600 pack_threadlist_request (char *pkt
, int startflag
, int threadcount
,
1601 threadref
*nextthread
)
1603 *pkt
++ = 'q'; /* info query packet */
1604 *pkt
++ = 'L'; /* Process LIST or threadLIST request */
1605 pkt
= pack_nibble (pkt
, startflag
); /* initflag 1 bytes */
1606 pkt
= pack_hex_byte (pkt
, threadcount
); /* threadcount 2 bytes */
1607 pkt
= pack_threadid (pkt
, nextthread
); /* 64 bit thread identifier */
1612 /* Encoding: 'q':8,'M':8,count:16,done:8,argthreadid:64,(threadid:64)* */
1615 parse_threadlist_response (char *pkt
, int result_limit
,
1616 threadref
*original_echo
, threadref
*resultlist
,
1619 struct remote_state
*rs
= get_remote_state ();
1621 int count
, resultcount
, done
;
1624 /* Assume the 'q' and 'M chars have been stripped. */
1625 limit
= pkt
+ ((rs
->remote_packet_size
) - BUF_THREAD_ID_SIZE
);
1626 /* done parse past here */
1627 pkt
= unpack_byte (pkt
, &count
); /* count field */
1628 pkt
= unpack_nibble (pkt
, &done
);
1629 /* The first threadid is the argument threadid. */
1630 pkt
= unpack_threadid (pkt
, original_echo
); /* should match query packet */
1631 while ((count
-- > 0) && (pkt
< limit
))
1633 pkt
= unpack_threadid (pkt
, resultlist
++);
1634 if (resultcount
++ >= result_limit
)
1643 remote_get_threadlist (int startflag
, threadref
*nextthread
, int result_limit
,
1644 int *done
, int *result_count
, threadref
*threadlist
)
1646 struct remote_state
*rs
= get_remote_state ();
1647 static threadref echo_nextthread
;
1648 char *threadlist_packet
= alloca (rs
->remote_packet_size
);
1649 char *t_response
= alloca (rs
->remote_packet_size
);
1652 /* Trancate result limit to be smaller than the packet size. */
1653 if ((((result_limit
+ 1) * BUF_THREAD_ID_SIZE
) + 10) >= (rs
->remote_packet_size
))
1654 result_limit
= ((rs
->remote_packet_size
) / BUF_THREAD_ID_SIZE
) - 2;
1656 pack_threadlist_request (threadlist_packet
,
1657 startflag
, result_limit
, nextthread
);
1658 putpkt (threadlist_packet
);
1659 getpkt (t_response
, (rs
->remote_packet_size
), 0);
1662 parse_threadlist_response (t_response
+ 2, result_limit
, &echo_nextthread
,
1665 if (!threadmatch (&echo_nextthread
, nextthread
))
1667 /* FIXME: This is a good reason to drop the packet. */
1668 /* Possably, there is a duplicate response. */
1670 retransmit immediatly - race conditions
1671 retransmit after timeout - yes
1673 wait for packet, then exit
1675 warning (_("HMM: threadlist did not echo arg thread, dropping it."));
1676 return 0; /* I choose simply exiting. */
1678 if (*result_count
<= 0)
1682 warning (_("RMT ERROR : failed to get remote thread list."));
1685 return result
; /* break; */
1687 if (*result_count
> result_limit
)
1690 warning (_("RMT ERROR: threadlist response longer than requested."));
1696 /* This is the interface between remote and threads, remotes upper
1699 /* remote_find_new_threads retrieves the thread list and for each
1700 thread in the list, looks up the thread in GDB's internal list,
1701 ading the thread if it does not already exist. This involves
1702 getting partial thread lists from the remote target so, polling the
1703 quit_flag is required. */
1706 /* About this many threadisds fit in a packet. */
1708 #define MAXTHREADLISTRESULTS 32
1711 remote_threadlist_iterator (rmt_thread_action stepfunction
, void *context
,
1714 int done
, i
, result_count
;
1718 static threadref nextthread
;
1719 static threadref resultthreadlist
[MAXTHREADLISTRESULTS
];
1724 if (loopcount
++ > looplimit
)
1727 warning (_("Remote fetch threadlist -infinite loop-."));
1730 if (!remote_get_threadlist (startflag
, &nextthread
, MAXTHREADLISTRESULTS
,
1731 &done
, &result_count
, resultthreadlist
))
1736 /* Clear for later iterations. */
1738 /* Setup to resume next batch of thread references, set nextthread. */
1739 if (result_count
>= 1)
1740 copy_threadref (&nextthread
, &resultthreadlist
[result_count
- 1]);
1742 while (result_count
--)
1743 if (!(result
= (*stepfunction
) (&resultthreadlist
[i
++], context
)))
1750 remote_newthread_step (threadref
*ref
, void *context
)
1754 ptid
= pid_to_ptid (threadref_to_int (ref
));
1756 if (!in_thread_list (ptid
))
1758 return 1; /* continue iterator */
1761 #define CRAZY_MAX_THREADS 1000
1764 remote_current_thread (ptid_t oldpid
)
1766 struct remote_state
*rs
= get_remote_state ();
1767 char *buf
= alloca (rs
->remote_packet_size
);
1770 getpkt (buf
, (rs
->remote_packet_size
), 0);
1771 if (buf
[0] == 'Q' && buf
[1] == 'C')
1772 /* Use strtoul here, so we'll correctly parse values whose highest
1773 bit is set. The protocol carries them as a simple series of
1774 hex digits; in the absence of a sign, strtol will see such
1775 values as positive numbers out of range for signed 'long', and
1776 return LONG_MAX to indicate an overflow. */
1777 return pid_to_ptid (strtoul (&buf
[2], NULL
, 16));
1782 /* Find new threads for info threads command.
1783 * Original version, using John Metzler's thread protocol.
1787 remote_find_new_threads (void)
1789 remote_threadlist_iterator (remote_newthread_step
, 0,
1791 if (PIDGET (inferior_ptid
) == MAGIC_NULL_PID
) /* ack ack ack */
1792 inferior_ptid
= remote_current_thread (inferior_ptid
);
1796 * Find all threads for info threads command.
1797 * Uses new thread protocol contributed by Cisco.
1798 * Falls back and attempts to use the older method (above)
1799 * if the target doesn't respond to the new method.
1803 remote_threads_info (void)
1805 struct remote_state
*rs
= get_remote_state ();
1806 char *buf
= alloca (rs
->remote_packet_size
);
1810 if (remote_desc
== 0) /* paranoia */
1811 error (_("Command can only be used when connected to the remote target."));
1813 if (use_threadinfo_query
)
1815 putpkt ("qfThreadInfo");
1817 getpkt (bufp
, (rs
->remote_packet_size
), 0);
1818 if (bufp
[0] != '\0') /* q packet recognized */
1820 while (*bufp
++ == 'm') /* reply contains one or more TID */
1824 /* Use strtoul here, so we'll correctly parse values
1825 whose highest bit is set. The protocol carries
1826 them as a simple series of hex digits; in the
1827 absence of a sign, strtol will see such values as
1828 positive numbers out of range for signed 'long',
1829 and return LONG_MAX to indicate an overflow. */
1830 tid
= strtoul (bufp
, &bufp
, 16);
1831 if (tid
!= 0 && !in_thread_list (pid_to_ptid (tid
)))
1832 add_thread (pid_to_ptid (tid
));
1834 while (*bufp
++ == ','); /* comma-separated list */
1835 putpkt ("qsThreadInfo");
1837 getpkt (bufp
, (rs
->remote_packet_size
), 0);
1843 /* Else fall back to old method based on jmetzler protocol. */
1844 use_threadinfo_query
= 0;
1845 remote_find_new_threads ();
1850 * Collect a descriptive string about the given thread.
1851 * The target may say anything it wants to about the thread
1852 * (typically info about its blocked / runnable state, name, etc.).
1853 * This string will appear in the info threads display.
1855 * Optional: targets are not required to implement this function.
1859 remote_threads_extra_info (struct thread_info
*tp
)
1861 struct remote_state
*rs
= get_remote_state ();
1865 struct gdb_ext_thread_info threadinfo
;
1866 static char display_buf
[100]; /* arbitrary... */
1867 char *bufp
= alloca (rs
->remote_packet_size
);
1868 int n
= 0; /* position in display_buf */
1870 if (remote_desc
== 0) /* paranoia */
1871 internal_error (__FILE__
, __LINE__
,
1872 _("remote_threads_extra_info"));
1874 if (use_threadextra_query
)
1876 sprintf (bufp
, "qThreadExtraInfo,%x", PIDGET (tp
->ptid
));
1878 getpkt (bufp
, (rs
->remote_packet_size
), 0);
1881 n
= min (strlen (bufp
) / 2, sizeof (display_buf
));
1882 result
= hex2bin (bufp
, display_buf
, n
);
1883 display_buf
[result
] = '\0';
1888 /* If the above query fails, fall back to the old method. */
1889 use_threadextra_query
= 0;
1890 set
= TAG_THREADID
| TAG_EXISTS
| TAG_THREADNAME
1891 | TAG_MOREDISPLAY
| TAG_DISPLAY
;
1892 int_to_threadref (&id
, PIDGET (tp
->ptid
));
1893 if (remote_get_threadinfo (&id
, set
, &threadinfo
))
1894 if (threadinfo
.active
)
1896 if (*threadinfo
.shortname
)
1897 n
+= sprintf(&display_buf
[0], " Name: %s,", threadinfo
.shortname
);
1898 if (*threadinfo
.display
)
1899 n
+= sprintf(&display_buf
[n
], " State: %s,", threadinfo
.display
);
1900 if (*threadinfo
.more_display
)
1901 n
+= sprintf(&display_buf
[n
], " Priority: %s",
1902 threadinfo
.more_display
);
1906 /* For purely cosmetic reasons, clear up trailing commas. */
1907 if (',' == display_buf
[n
-1])
1908 display_buf
[n
-1] = ' ';
1917 /* Restart the remote side; this is an extended protocol operation. */
1920 extended_remote_restart (void)
1922 struct remote_state
*rs
= get_remote_state ();
1923 char *buf
= alloca (rs
->remote_packet_size
);
1925 /* Send the restart command; for reasons I don't understand the
1926 remote side really expects a number after the "R". */
1928 sprintf (&buf
[1], "%x", 0);
1931 /* Now query for status so this looks just like we restarted
1932 gdbserver from scratch. */
1934 getpkt (buf
, (rs
->remote_packet_size
), 0);
1937 /* Clean up connection to a remote debugger. */
1940 remote_close (int quitting
)
1943 serial_close (remote_desc
);
1947 /* Query the remote side for the text, data and bss offsets. */
1952 struct remote_state
*rs
= get_remote_state ();
1953 char *buf
= alloca (rs
->remote_packet_size
);
1956 CORE_ADDR text_addr
, data_addr
, bss_addr
;
1957 struct section_offsets
*offs
;
1959 putpkt ("qOffsets");
1961 getpkt (buf
, (rs
->remote_packet_size
), 0);
1963 if (buf
[0] == '\000')
1964 return; /* Return silently. Stub doesn't support
1968 warning (_("Remote failure reply: %s"), buf
);
1972 /* Pick up each field in turn. This used to be done with scanf, but
1973 scanf will make trouble if CORE_ADDR size doesn't match
1974 conversion directives correctly. The following code will work
1975 with any size of CORE_ADDR. */
1976 text_addr
= data_addr
= bss_addr
= 0;
1980 if (strncmp (ptr
, "Text=", 5) == 0)
1983 /* Don't use strtol, could lose on big values. */
1984 while (*ptr
&& *ptr
!= ';')
1985 text_addr
= (text_addr
<< 4) + fromhex (*ptr
++);
1990 if (!lose
&& strncmp (ptr
, ";Data=", 6) == 0)
1993 while (*ptr
&& *ptr
!= ';')
1994 data_addr
= (data_addr
<< 4) + fromhex (*ptr
++);
1999 if (!lose
&& strncmp (ptr
, ";Bss=", 5) == 0)
2002 while (*ptr
&& *ptr
!= ';')
2003 bss_addr
= (bss_addr
<< 4) + fromhex (*ptr
++);
2009 error (_("Malformed response to offset query, %s"), buf
);
2011 if (symfile_objfile
== NULL
)
2014 offs
= ((struct section_offsets
*)
2015 alloca (SIZEOF_N_SECTION_OFFSETS (symfile_objfile
->num_sections
)));
2016 memcpy (offs
, symfile_objfile
->section_offsets
,
2017 SIZEOF_N_SECTION_OFFSETS (symfile_objfile
->num_sections
));
2019 offs
->offsets
[SECT_OFF_TEXT (symfile_objfile
)] = text_addr
;
2021 /* This is a temporary kludge to force data and bss to use the same offsets
2022 because that's what nlmconv does now. The real solution requires changes
2023 to the stub and remote.c that I don't have time to do right now. */
2025 offs
->offsets
[SECT_OFF_DATA (symfile_objfile
)] = data_addr
;
2026 offs
->offsets
[SECT_OFF_BSS (symfile_objfile
)] = data_addr
;
2028 objfile_relocate (symfile_objfile
, offs
);
2031 /* Stub for catch_errors. */
2034 remote_start_remote_dummy (struct ui_out
*uiout
, void *dummy
)
2036 start_remote (); /* Initialize gdb process mechanisms. */
2037 /* NOTE: Return something >=0. A -ve value is reserved for
2038 catch_exceptions. */
2043 remote_start_remote (struct ui_out
*uiout
, void *dummy
)
2045 immediate_quit
++; /* Allow user to interrupt it. */
2047 /* Ack any packet which the remote side has already sent. */
2048 serial_write (remote_desc
, "+", 1);
2050 /* Let the stub know that we want it to return the thread. */
2053 inferior_ptid
= remote_current_thread (inferior_ptid
);
2055 get_offsets (); /* Get text, data & bss offsets. */
2057 putpkt ("?"); /* Initiate a query from remote machine. */
2060 remote_start_remote_dummy (uiout
, dummy
);
2063 /* Open a connection to a remote debugger.
2064 NAME is the filename used for communication. */
2067 remote_open (char *name
, int from_tty
)
2069 remote_open_1 (name
, from_tty
, &remote_ops
, 0, 0);
2072 /* Just like remote_open, but with asynchronous support. */
2074 remote_async_open (char *name
, int from_tty
)
2076 remote_open_1 (name
, from_tty
, &remote_async_ops
, 0, 1);
2079 /* Open a connection to a remote debugger using the extended
2080 remote gdb protocol. NAME is the filename used for communication. */
2083 extended_remote_open (char *name
, int from_tty
)
2085 remote_open_1 (name
, from_tty
, &extended_remote_ops
, 1 /*extended_p */,
2089 /* Just like extended_remote_open, but with asynchronous support. */
2091 extended_remote_async_open (char *name
, int from_tty
)
2093 remote_open_1 (name
, from_tty
, &extended_async_remote_ops
,
2094 1 /*extended_p */, 1 /* async_p */);
2097 /* Generic code for opening a connection to a remote target. */
2100 init_all_packet_configs (void)
2103 update_packet_config (&remote_protocol_P
);
2104 update_packet_config (&remote_protocol_p
);
2105 update_packet_config (&remote_protocol_qSymbol
);
2106 update_packet_config (&remote_protocol_vcont
);
2107 for (i
= 0; i
< NR_Z_PACKET_TYPES
; i
++)
2108 update_packet_config (&remote_protocol_Z
[i
]);
2109 /* Force remote_write_bytes to check whether target supports binary
2111 update_packet_config (&remote_protocol_binary_download
);
2112 update_packet_config (&remote_protocol_qPart_auxv
);
2113 update_packet_config (&remote_protocol_qGetTLSAddr
);
2116 /* Symbol look-up. */
2119 remote_check_symbols (struct objfile
*objfile
)
2121 struct remote_state
*rs
= get_remote_state ();
2122 char *msg
, *reply
, *tmp
;
2123 struct minimal_symbol
*sym
;
2126 if (remote_protocol_qSymbol
.support
== PACKET_DISABLE
)
2129 msg
= alloca (rs
->remote_packet_size
);
2130 reply
= alloca (rs
->remote_packet_size
);
2132 /* Invite target to request symbol lookups. */
2134 putpkt ("qSymbol::");
2135 getpkt (reply
, (rs
->remote_packet_size
), 0);
2136 packet_ok (reply
, &remote_protocol_qSymbol
);
2138 while (strncmp (reply
, "qSymbol:", 8) == 0)
2141 end
= hex2bin (tmp
, msg
, strlen (tmp
) / 2);
2143 sym
= lookup_minimal_symbol (msg
, NULL
, NULL
);
2145 sprintf (msg
, "qSymbol::%s", &reply
[8]);
2147 sprintf (msg
, "qSymbol:%s:%s",
2148 paddr_nz (SYMBOL_VALUE_ADDRESS (sym
)),
2151 getpkt (reply
, (rs
->remote_packet_size
), 0);
2155 static struct serial
*
2156 remote_serial_open (char *name
)
2158 static int udp_warning
= 0;
2160 /* FIXME: Parsing NAME here is a hack. But we want to warn here instead
2161 of in ser-tcp.c, because it is the remote protocol assuming that the
2162 serial connection is reliable and not the serial connection promising
2164 if (!udp_warning
&& strncmp (name
, "udp:", 4) == 0)
2167 The remote protocol may be unreliable over UDP.\n\
2168 Some events may be lost, rendering further debugging impossible."));
2172 return serial_open (name
);
2176 remote_open_1 (char *name
, int from_tty
, struct target_ops
*target
,
2177 int extended_p
, int async_p
)
2179 struct remote_state
*rs
= get_remote_state ();
2181 error (_("To open a remote debug connection, you need to specify what\n"
2182 "serial device is attached to the remote system\n"
2183 "(e.g. /dev/ttyS0, /dev/ttya, COM1, etc.)."));
2185 /* See FIXME above. */
2187 wait_forever_enabled_p
= 1;
2189 reopen_exec_file ();
2192 target_preopen (from_tty
);
2194 unpush_target (target
);
2196 remote_desc
= remote_serial_open (name
);
2198 perror_with_name (name
);
2200 if (baud_rate
!= -1)
2202 if (serial_setbaudrate (remote_desc
, baud_rate
))
2204 /* The requested speed could not be set. Error out to
2205 top level after closing remote_desc. Take care to
2206 set remote_desc to NULL to avoid closing remote_desc
2208 serial_close (remote_desc
);
2210 perror_with_name (name
);
2214 serial_raw (remote_desc
);
2216 /* If there is something sitting in the buffer we might take it as a
2217 response to a command, which would be bad. */
2218 serial_flush_input (remote_desc
);
2222 puts_filtered ("Remote debugging using ");
2223 puts_filtered (name
);
2224 puts_filtered ("\n");
2226 push_target (target
); /* Switch to using remote target now. */
2228 init_all_packet_configs ();
2230 general_thread
= -2;
2231 continue_thread
= -2;
2233 /* Probe for ability to use "ThreadInfo" query, as required. */
2234 use_threadinfo_query
= 1;
2235 use_threadextra_query
= 1;
2237 /* Without this, some commands which require an active target (such
2238 as kill) won't work. This variable serves (at least) double duty
2239 as both the pid of the target process (if it has such), and as a
2240 flag indicating that a target is active. These functions should
2241 be split out into seperate variables, especially since GDB will
2242 someday have a notion of debugging several processes. */
2244 inferior_ptid
= pid_to_ptid (MAGIC_NULL_PID
);
2248 /* With this target we start out by owning the terminal. */
2249 remote_async_terminal_ours_p
= 1;
2251 /* FIXME: cagney/1999-09-23: During the initial connection it is
2252 assumed that the target is already ready and able to respond to
2253 requests. Unfortunately remote_start_remote() eventually calls
2254 wait_for_inferior() with no timeout. wait_forever_enabled_p gets
2255 around this. Eventually a mechanism that allows
2256 wait_for_inferior() to expect/get timeouts will be
2258 wait_forever_enabled_p
= 0;
2261 #ifdef SOLIB_CREATE_INFERIOR_HOOK
2262 /* First delete any symbols previously loaded from shared libraries. */
2263 no_shared_libraries (NULL
, 0);
2266 /* Start the remote connection. If error() or QUIT, discard this
2267 target (we'd otherwise be in an inconsistent state) and then
2268 propogate the error on up the exception chain. This ensures that
2269 the caller doesn't stumble along blindly assuming that the
2270 function succeeded. The CLI doesn't have this problem but other
2271 UI's, such as MI do.
2273 FIXME: cagney/2002-05-19: Instead of re-throwing the exception,
2274 this function should return an error indication letting the
2275 caller restore the previous state. Unfortunately the command
2276 ``target remote'' is directly wired to this function making that
2277 impossible. On a positive note, the CLI side of this problem has
2278 been fixed - the function set_cmd_context() makes it possible for
2279 all the ``target ....'' commands to share a common callback
2280 function. See cli-dump.c. */
2282 struct gdb_exception ex
2283 = catch_exception (uiout
, remote_start_remote
, NULL
, RETURN_MASK_ALL
);
2288 wait_forever_enabled_p
= 1;
2289 throw_exception (ex
);
2294 wait_forever_enabled_p
= 1;
2298 /* Tell the remote that we are using the extended protocol. */
2299 char *buf
= alloca (rs
->remote_packet_size
);
2301 getpkt (buf
, (rs
->remote_packet_size
), 0);
2303 #ifdef SOLIB_CREATE_INFERIOR_HOOK
2304 /* FIXME: need a master target_open vector from which all
2305 remote_opens can be called, so that stuff like this can
2306 go there. Failing that, the following code must be copied
2307 to the open function for any remote target that wants to
2308 support svr4 shared libraries. */
2310 /* Set up to detect and load shared libraries. */
2311 if (exec_bfd
) /* No use without an exec file. */
2313 SOLIB_CREATE_INFERIOR_HOOK (PIDGET (inferior_ptid
));
2314 remote_check_symbols (symfile_objfile
);
2318 observer_notify_inferior_created (¤t_target
, from_tty
);
2321 /* This takes a program previously attached to and detaches it. After
2322 this is done, GDB can be used to debug some other program. We
2323 better not have left any breakpoints in the target program or it'll
2324 die when it hits one. */
2327 remote_detach (char *args
, int from_tty
)
2329 struct remote_state
*rs
= get_remote_state ();
2330 char *buf
= alloca (rs
->remote_packet_size
);
2333 error (_("Argument given to \"detach\" when remotely debugging."));
2335 /* Tell the remote target to detach. */
2337 remote_send (buf
, (rs
->remote_packet_size
));
2339 /* Unregister the file descriptor from the event loop. */
2340 if (target_is_async_p ())
2341 serial_async (remote_desc
, NULL
, 0);
2343 target_mourn_inferior ();
2345 puts_filtered ("Ending remote debugging.\n");
2348 /* Same as remote_detach, but don't send the "D" packet; just disconnect. */
2351 remote_disconnect (char *args
, int from_tty
)
2354 error (_("Argument given to \"detach\" when remotely debugging."));
2356 /* Unregister the file descriptor from the event loop. */
2357 if (target_is_async_p ())
2358 serial_async (remote_desc
, NULL
, 0);
2360 target_mourn_inferior ();
2362 puts_filtered ("Ending remote debugging.\n");
2365 /* Convert hex digit A to a number. */
2370 if (a
>= '0' && a
<= '9')
2372 else if (a
>= 'a' && a
<= 'f')
2373 return a
- 'a' + 10;
2374 else if (a
>= 'A' && a
<= 'F')
2375 return a
- 'A' + 10;
2377 error (_("Reply contains invalid hex digit %d"), a
);
2381 hex2bin (const char *hex
, char *bin
, int count
)
2385 for (i
= 0; i
< count
; i
++)
2387 if (hex
[0] == 0 || hex
[1] == 0)
2389 /* Hex string is short, or of uneven length.
2390 Return the count that has been converted so far. */
2393 *bin
++ = fromhex (hex
[0]) * 16 + fromhex (hex
[1]);
2399 /* Convert number NIB to a hex digit. */
2407 return 'a' + nib
- 10;
2411 bin2hex (const char *bin
, char *hex
, int count
)
2414 /* May use a length, or a nul-terminated string as input. */
2416 count
= strlen (bin
);
2418 for (i
= 0; i
< count
; i
++)
2420 *hex
++ = tohex ((*bin
>> 4) & 0xf);
2421 *hex
++ = tohex (*bin
++ & 0xf);
2427 /* Check for the availability of vCont. This function should also check
2431 remote_vcont_probe (struct remote_state
*rs
, char *buf
)
2433 strcpy (buf
, "vCont?");
2435 getpkt (buf
, rs
->remote_packet_size
, 0);
2437 /* Make sure that the features we assume are supported. */
2438 if (strncmp (buf
, "vCont", 5) == 0)
2441 int support_s
, support_S
, support_c
, support_C
;
2447 while (p
&& *p
== ';')
2450 if (*p
== 's' && (*(p
+ 1) == ';' || *(p
+ 1) == 0))
2452 else if (*p
== 'S' && (*(p
+ 1) == ';' || *(p
+ 1) == 0))
2454 else if (*p
== 'c' && (*(p
+ 1) == ';' || *(p
+ 1) == 0))
2456 else if (*p
== 'C' && (*(p
+ 1) == ';' || *(p
+ 1) == 0))
2459 p
= strchr (p
, ';');
2462 /* If s, S, c, and C are not all supported, we can't use vCont. Clearing
2463 BUF will make packet_ok disable the packet. */
2464 if (!support_s
|| !support_S
|| !support_c
|| !support_C
)
2468 packet_ok (buf
, &remote_protocol_vcont
);
2471 /* Resume the remote inferior by using a "vCont" packet. The thread
2472 to be resumed is PTID; STEP and SIGGNAL indicate whether the
2473 resumed thread should be single-stepped and/or signalled. If PTID's
2474 PID is -1, then all threads are resumed; the thread to be stepped and/or
2475 signalled is given in the global INFERIOR_PTID. This function returns
2476 non-zero iff it resumes the inferior.
2478 This function issues a strict subset of all possible vCont commands at the
2482 remote_vcont_resume (ptid_t ptid
, int step
, enum target_signal siggnal
)
2484 struct remote_state
*rs
= get_remote_state ();
2485 int pid
= PIDGET (ptid
);
2486 char *buf
= NULL
, *outbuf
;
2487 struct cleanup
*old_cleanup
;
2489 buf
= xmalloc (rs
->remote_packet_size
);
2490 old_cleanup
= make_cleanup (xfree
, buf
);
2492 if (remote_protocol_vcont
.support
== PACKET_SUPPORT_UNKNOWN
)
2493 remote_vcont_probe (rs
, buf
);
2495 if (remote_protocol_vcont
.support
== PACKET_DISABLE
)
2497 do_cleanups (old_cleanup
);
2501 /* If we could generate a wider range of packets, we'd have to worry
2502 about overflowing BUF. Should there be a generic
2503 "multi-part-packet" packet? */
2505 if (PIDGET (inferior_ptid
) == MAGIC_NULL_PID
)
2507 /* MAGIC_NULL_PTID means that we don't have any active threads, so we
2508 don't have any PID numbers the inferior will understand. Make sure
2509 to only send forms that do not specify a PID. */
2510 if (step
&& siggnal
!= TARGET_SIGNAL_0
)
2511 outbuf
= xstrprintf ("vCont;S%02x", siggnal
);
2513 outbuf
= xstrprintf ("vCont;s");
2514 else if (siggnal
!= TARGET_SIGNAL_0
)
2515 outbuf
= xstrprintf ("vCont;C%02x", siggnal
);
2517 outbuf
= xstrprintf ("vCont;c");
2521 /* Resume all threads, with preference for INFERIOR_PTID. */
2522 if (step
&& siggnal
!= TARGET_SIGNAL_0
)
2523 outbuf
= xstrprintf ("vCont;S%02x:%x;c", siggnal
,
2524 PIDGET (inferior_ptid
));
2526 outbuf
= xstrprintf ("vCont;s:%x;c", PIDGET (inferior_ptid
));
2527 else if (siggnal
!= TARGET_SIGNAL_0
)
2528 outbuf
= xstrprintf ("vCont;C%02x:%x;c", siggnal
,
2529 PIDGET (inferior_ptid
));
2531 outbuf
= xstrprintf ("vCont;c");
2535 /* Scheduler locking; resume only PTID. */
2536 if (step
&& siggnal
!= TARGET_SIGNAL_0
)
2537 outbuf
= xstrprintf ("vCont;S%02x:%x", siggnal
, pid
);
2539 outbuf
= xstrprintf ("vCont;s:%x", pid
);
2540 else if (siggnal
!= TARGET_SIGNAL_0
)
2541 outbuf
= xstrprintf ("vCont;C%02x:%x", siggnal
, pid
);
2543 outbuf
= xstrprintf ("vCont;c:%x", pid
);
2546 gdb_assert (outbuf
&& strlen (outbuf
) < rs
->remote_packet_size
);
2547 make_cleanup (xfree
, outbuf
);
2551 do_cleanups (old_cleanup
);
2556 /* Tell the remote machine to resume. */
2558 static enum target_signal last_sent_signal
= TARGET_SIGNAL_0
;
2560 static int last_sent_step
;
2563 remote_resume (ptid_t ptid
, int step
, enum target_signal siggnal
)
2565 struct remote_state
*rs
= get_remote_state ();
2566 char *buf
= alloca (rs
->remote_packet_size
);
2567 int pid
= PIDGET (ptid
);
2569 last_sent_signal
= siggnal
;
2570 last_sent_step
= step
;
2572 /* A hook for when we need to do something at the last moment before
2574 if (deprecated_target_resume_hook
)
2575 (*deprecated_target_resume_hook
) ();
2577 /* The vCont packet doesn't need to specify threads via Hc. */
2578 if (remote_vcont_resume (ptid
, step
, siggnal
))
2581 /* All other supported resume packets do use Hc, so call set_thread. */
2583 set_thread (0, 0); /* Run any thread. */
2585 set_thread (pid
, 0); /* Run this thread. */
2587 if (siggnal
!= TARGET_SIGNAL_0
)
2589 buf
[0] = step
? 'S' : 'C';
2590 buf
[1] = tohex (((int) siggnal
>> 4) & 0xf);
2591 buf
[2] = tohex (((int) siggnal
) & 0xf);
2595 strcpy (buf
, step
? "s" : "c");
2600 /* Same as remote_resume, but with async support. */
2602 remote_async_resume (ptid_t ptid
, int step
, enum target_signal siggnal
)
2604 remote_resume (ptid
, step
, siggnal
);
2606 /* We are about to start executing the inferior, let's register it
2607 with the event loop. NOTE: this is the one place where all the
2608 execution commands end up. We could alternatively do this in each
2609 of the execution commands in infcmd.c. */
2610 /* FIXME: ezannoni 1999-09-28: We may need to move this out of here
2611 into infcmd.c in order to allow inferior function calls to work
2612 NOT asynchronously. */
2613 if (target_can_async_p ())
2614 target_async (inferior_event_handler
, 0);
2615 /* Tell the world that the target is now executing. */
2616 /* FIXME: cagney/1999-09-23: Is it the targets responsibility to set
2617 this? Instead, should the client of target just assume (for
2618 async targets) that the target is going to start executing? Is
2619 this information already found in the continuation block? */
2620 if (target_is_async_p ())
2621 target_executing
= 1;
2625 /* Set up the signal handler for SIGINT, while the target is
2626 executing, ovewriting the 'regular' SIGINT signal handler. */
2628 initialize_sigint_signal_handler (void)
2630 sigint_remote_token
=
2631 create_async_signal_handler (async_remote_interrupt
, NULL
);
2632 signal (SIGINT
, handle_remote_sigint
);
2635 /* Signal handler for SIGINT, while the target is executing. */
2637 handle_remote_sigint (int sig
)
2639 signal (sig
, handle_remote_sigint_twice
);
2640 sigint_remote_twice_token
=
2641 create_async_signal_handler (async_remote_interrupt_twice
, NULL
);
2642 mark_async_signal_handler_wrapper (sigint_remote_token
);
2645 /* Signal handler for SIGINT, installed after SIGINT has already been
2646 sent once. It will take effect the second time that the user sends
2649 handle_remote_sigint_twice (int sig
)
2651 signal (sig
, handle_sigint
);
2652 sigint_remote_twice_token
=
2653 create_async_signal_handler (inferior_event_handler_wrapper
, NULL
);
2654 mark_async_signal_handler_wrapper (sigint_remote_twice_token
);
2657 /* Perform the real interruption of the target execution, in response
2660 async_remote_interrupt (gdb_client_data arg
)
2663 fprintf_unfiltered (gdb_stdlog
, "remote_interrupt called\n");
2668 /* Perform interrupt, if the first attempt did not succeed. Just give
2669 up on the target alltogether. */
2671 async_remote_interrupt_twice (gdb_client_data arg
)
2674 fprintf_unfiltered (gdb_stdlog
, "remote_interrupt_twice called\n");
2675 /* Do something only if the target was not killed by the previous
2677 if (target_executing
)
2680 signal (SIGINT
, handle_remote_sigint
);
2684 /* Reinstall the usual SIGINT handlers, after the target has
2687 cleanup_sigint_signal_handler (void *dummy
)
2689 signal (SIGINT
, handle_sigint
);
2690 if (sigint_remote_twice_token
)
2691 delete_async_signal_handler ((struct async_signal_handler
**)
2692 &sigint_remote_twice_token
);
2693 if (sigint_remote_token
)
2694 delete_async_signal_handler ((struct async_signal_handler
**)
2695 &sigint_remote_token
);
2698 /* Send ^C to target to halt it. Target will respond, and send us a
2700 static void (*ofunc
) (int);
2702 /* The command line interface's stop routine. This function is installed
2703 as a signal handler for SIGINT. The first time a user requests a
2704 stop, we call remote_stop to send a break or ^C. If there is no
2705 response from the target (it didn't stop when the user requested it),
2706 we ask the user if he'd like to detach from the target. */
2708 remote_interrupt (int signo
)
2710 /* If this doesn't work, try more severe steps. */
2711 signal (signo
, remote_interrupt_twice
);
2714 fprintf_unfiltered (gdb_stdlog
, "remote_interrupt called\n");
2719 /* The user typed ^C twice. */
2722 remote_interrupt_twice (int signo
)
2724 signal (signo
, ofunc
);
2726 signal (signo
, remote_interrupt
);
2729 /* This is the generic stop called via the target vector. When a target
2730 interrupt is requested, either by the command line or the GUI, we
2731 will eventually end up here. */
2735 /* Send a break or a ^C, depending on user preference. */
2737 fprintf_unfiltered (gdb_stdlog
, "remote_stop called\n");
2740 serial_send_break (remote_desc
);
2742 serial_write (remote_desc
, "\003", 1);
2745 /* Ask the user what to do when an interrupt is received. */
2748 interrupt_query (void)
2750 target_terminal_ours ();
2752 if (query ("Interrupted while waiting for the program.\n\
2753 Give up (and stop debugging it)? "))
2755 target_mourn_inferior ();
2756 deprecated_throw_reason (RETURN_QUIT
);
2759 target_terminal_inferior ();
2762 /* Enable/disable target terminal ownership. Most targets can use
2763 terminal groups to control terminal ownership. Remote targets are
2764 different in that explicit transfer of ownership to/from GDB/target
2768 remote_async_terminal_inferior (void)
2770 /* FIXME: cagney/1999-09-27: Shouldn't need to test for
2771 sync_execution here. This function should only be called when
2772 GDB is resuming the inferior in the forground. A background
2773 resume (``run&'') should leave GDB in control of the terminal and
2774 consequently should not call this code. */
2775 if (!sync_execution
)
2777 /* FIXME: cagney/1999-09-27: Closely related to the above. Make
2778 calls target_terminal_*() idenpotent. The event-loop GDB talking
2779 to an asynchronous target with a synchronous command calls this
2780 function from both event-top.c and infrun.c/infcmd.c. Once GDB
2781 stops trying to transfer the terminal to the target when it
2782 shouldn't this guard can go away. */
2783 if (!remote_async_terminal_ours_p
)
2785 delete_file_handler (input_fd
);
2786 remote_async_terminal_ours_p
= 0;
2787 initialize_sigint_signal_handler ();
2788 /* NOTE: At this point we could also register our selves as the
2789 recipient of all input. Any characters typed could then be
2790 passed on down to the target. */
2794 remote_async_terminal_ours (void)
2796 /* See FIXME in remote_async_terminal_inferior. */
2797 if (!sync_execution
)
2799 /* See FIXME in remote_async_terminal_inferior. */
2800 if (remote_async_terminal_ours_p
)
2802 cleanup_sigint_signal_handler (NULL
);
2803 add_file_handler (input_fd
, stdin_event_handler
, 0);
2804 remote_async_terminal_ours_p
= 1;
2807 /* If nonzero, ignore the next kill. */
2812 remote_console_output (char *msg
)
2816 for (p
= msg
; p
[0] && p
[1]; p
+= 2)
2819 char c
= fromhex (p
[0]) * 16 + fromhex (p
[1]);
2822 fputs_unfiltered (tb
, gdb_stdtarg
);
2824 gdb_flush (gdb_stdtarg
);
2827 /* Wait until the remote machine stops, then return,
2828 storing status in STATUS just as `wait' would.
2829 Returns "pid", which in the case of a multi-threaded
2830 remote OS, is the thread-id. */
2833 remote_wait (ptid_t ptid
, struct target_waitstatus
*status
)
2835 struct remote_state
*rs
= get_remote_state ();
2836 unsigned char *buf
= alloca (rs
->remote_packet_size
);
2837 ULONGEST thread_num
= -1;
2840 status
->kind
= TARGET_WAITKIND_EXITED
;
2841 status
->value
.integer
= 0;
2847 ofunc
= signal (SIGINT
, remote_interrupt
);
2848 getpkt (buf
, (rs
->remote_packet_size
), 1);
2849 signal (SIGINT
, ofunc
);
2851 /* This is a hook for when we need to do something (perhaps the
2852 collection of trace data) every time the target stops. */
2853 if (deprecated_target_wait_loop_hook
)
2854 (*deprecated_target_wait_loop_hook
) ();
2856 remote_stopped_by_watchpoint_p
= 0;
2860 case 'E': /* Error of some sort. */
2861 warning (_("Remote failure reply: %s"), buf
);
2863 case 'F': /* File-I/O request. */
2864 remote_fileio_request (buf
);
2866 case 'T': /* Status with PC, SP, FP, ... */
2868 char regs
[MAX_REGISTER_SIZE
];
2870 /* Expedited reply, containing Signal, {regno, reg} repeat. */
2871 /* format is: 'Tssn...:r...;n...:r...;n...:r...;#cc', where
2873 n... = register number
2874 r... = register contents
2876 p
= &buf
[3]; /* after Txx */
2885 /* If the packet contains a register number save it in
2886 pnum and set p1 to point to the character following
2887 it. Otherwise p1 points to p. */
2889 /* If this packet is an awatch packet, don't parse the
2890 'a' as a register number. */
2892 if (strncmp (p
, "awatch", strlen("awatch")) != 0)
2894 /* Read the ``P'' register number. */
2895 pnum
= strtol (p
, &p_temp
, 16);
2896 p1
= (unsigned char *) p_temp
;
2901 if (p1
== p
) /* No register number present here. */
2903 p1
= (unsigned char *) strchr (p
, ':');
2905 warning (_("Malformed packet(a) (missing colon): %s\n\
2908 if (strncmp (p
, "thread", p1
- p
) == 0)
2910 p_temp
= unpack_varlen_hex (++p1
, &thread_num
);
2911 record_currthread (thread_num
);
2912 p
= (unsigned char *) p_temp
;
2914 else if ((strncmp (p
, "watch", p1
- p
) == 0)
2915 || (strncmp (p
, "rwatch", p1
- p
) == 0)
2916 || (strncmp (p
, "awatch", p1
- p
) == 0))
2918 remote_stopped_by_watchpoint_p
= 1;
2919 p
= unpack_varlen_hex (++p1
, &addr
);
2920 remote_watch_data_address
= (CORE_ADDR
)addr
;
2924 /* Silently skip unknown optional info. */
2925 p_temp
= strchr (p1
+ 1, ';');
2927 p
= (unsigned char *) p_temp
;
2932 struct packet_reg
*reg
= packet_reg_from_pnum (rs
, pnum
);
2936 error (_("Malformed packet(b) (missing colon): %s\n\
2941 error (_("Remote sent bad register number %s: %s\n\
2943 phex_nz (pnum
, 0), p
, buf
);
2945 fieldsize
= hex2bin (p
, regs
,
2946 register_size (current_gdbarch
,
2949 if (fieldsize
< register_size (current_gdbarch
,
2951 warning (_("Remote reply is too short: %s"), buf
);
2952 regcache_raw_supply (current_regcache
,
2957 error (_("Remote register badly formatted: %s\nhere: %s"),
2962 case 'S': /* Old style status, just signal only. */
2963 status
->kind
= TARGET_WAITKIND_STOPPED
;
2964 status
->value
.sig
= (enum target_signal
)
2965 (((fromhex (buf
[1])) << 4) + (fromhex (buf
[2])));
2969 thread_num
= strtol ((const char *) &buf
[4], NULL
, 16);
2970 record_currthread (thread_num
);
2973 case 'W': /* Target exited. */
2975 /* The remote process exited. */
2976 status
->kind
= TARGET_WAITKIND_EXITED
;
2977 status
->value
.integer
= (fromhex (buf
[1]) << 4) + fromhex (buf
[2]);
2981 status
->kind
= TARGET_WAITKIND_SIGNALLED
;
2982 status
->value
.sig
= (enum target_signal
)
2983 (((fromhex (buf
[1])) << 4) + (fromhex (buf
[2])));
2987 case 'O': /* Console output. */
2988 remote_console_output (buf
+ 1);
2991 if (last_sent_signal
!= TARGET_SIGNAL_0
)
2993 /* Zero length reply means that we tried 'S' or 'C' and
2994 the remote system doesn't support it. */
2995 target_terminal_ours_for_output ();
2997 ("Can't send signals to this remote system. %s not sent.\n",
2998 target_signal_to_name (last_sent_signal
));
2999 last_sent_signal
= TARGET_SIGNAL_0
;
3000 target_terminal_inferior ();
3002 strcpy ((char *) buf
, last_sent_step
? "s" : "c");
3003 putpkt ((char *) buf
);
3006 /* else fallthrough */
3008 warning (_("Invalid remote reply: %s"), buf
);
3013 if (thread_num
!= -1)
3015 return pid_to_ptid (thread_num
);
3017 return inferior_ptid
;
3020 /* Async version of remote_wait. */
3022 remote_async_wait (ptid_t ptid
, struct target_waitstatus
*status
)
3024 struct remote_state
*rs
= get_remote_state ();
3025 unsigned char *buf
= alloca (rs
->remote_packet_size
);
3026 ULONGEST thread_num
= -1;
3029 status
->kind
= TARGET_WAITKIND_EXITED
;
3030 status
->value
.integer
= 0;
3032 remote_stopped_by_watchpoint_p
= 0;
3038 if (!target_is_async_p ())
3039 ofunc
= signal (SIGINT
, remote_interrupt
);
3040 /* FIXME: cagney/1999-09-27: If we're in async mode we should
3041 _never_ wait for ever -> test on target_is_async_p().
3042 However, before we do that we need to ensure that the caller
3043 knows how to take the target into/out of async mode. */
3044 getpkt (buf
, (rs
->remote_packet_size
), wait_forever_enabled_p
);
3045 if (!target_is_async_p ())
3046 signal (SIGINT
, ofunc
);
3048 /* This is a hook for when we need to do something (perhaps the
3049 collection of trace data) every time the target stops. */
3050 if (deprecated_target_wait_loop_hook
)
3051 (*deprecated_target_wait_loop_hook
) ();
3055 case 'E': /* Error of some sort. */
3056 warning (_("Remote failure reply: %s"), buf
);
3058 case 'F': /* File-I/O request. */
3059 remote_fileio_request (buf
);
3061 case 'T': /* Status with PC, SP, FP, ... */
3063 char regs
[MAX_REGISTER_SIZE
];
3065 /* Expedited reply, containing Signal, {regno, reg} repeat. */
3066 /* format is: 'Tssn...:r...;n...:r...;n...:r...;#cc', where
3068 n... = register number
3069 r... = register contents
3071 p
= &buf
[3]; /* after Txx */
3080 /* If the packet contains a register number, save it
3081 in pnum and set p1 to point to the character
3082 following it. Otherwise p1 points to p. */
3084 /* If this packet is an awatch packet, don't parse the 'a'
3085 as a register number. */
3087 if (!strncmp (p
, "awatch", strlen ("awatch")) != 0)
3089 /* Read the register number. */
3090 pnum
= strtol (p
, &p_temp
, 16);
3091 p1
= (unsigned char *) p_temp
;
3096 if (p1
== p
) /* No register number present here. */
3098 p1
= (unsigned char *) strchr (p
, ':');
3100 error (_("Malformed packet(a) (missing colon): %s\n\
3103 if (strncmp (p
, "thread", p1
- p
) == 0)
3105 p_temp
= unpack_varlen_hex (++p1
, &thread_num
);
3106 record_currthread (thread_num
);
3107 p
= (unsigned char *) p_temp
;
3109 else if ((strncmp (p
, "watch", p1
- p
) == 0)
3110 || (strncmp (p
, "rwatch", p1
- p
) == 0)
3111 || (strncmp (p
, "awatch", p1
- p
) == 0))
3113 remote_stopped_by_watchpoint_p
= 1;
3114 p
= unpack_varlen_hex (++p1
, &addr
);
3115 remote_watch_data_address
= (CORE_ADDR
)addr
;
3119 /* Silently skip unknown optional info. */
3120 p_temp
= (unsigned char *) strchr (p1
+ 1, ';');
3128 struct packet_reg
*reg
= packet_reg_from_pnum (rs
, pnum
);
3131 error (_("Malformed packet(b) (missing colon): %s\n\
3136 error (_("Remote sent bad register number %ld: %s\n\
3140 fieldsize
= hex2bin (p
, regs
,
3141 register_size (current_gdbarch
,
3144 if (fieldsize
< register_size (current_gdbarch
,
3146 warning (_("Remote reply is too short: %s"), buf
);
3147 regcache_raw_supply (current_regcache
, reg
->regnum
, regs
);
3151 error (_("Remote register badly formatted: %s\nhere: %s"),
3156 case 'S': /* Old style status, just signal only. */
3157 status
->kind
= TARGET_WAITKIND_STOPPED
;
3158 status
->value
.sig
= (enum target_signal
)
3159 (((fromhex (buf
[1])) << 4) + (fromhex (buf
[2])));
3163 thread_num
= strtol ((const char *) &buf
[4], NULL
, 16);
3164 record_currthread (thread_num
);
3167 case 'W': /* Target exited. */
3169 /* The remote process exited. */
3170 status
->kind
= TARGET_WAITKIND_EXITED
;
3171 status
->value
.integer
= (fromhex (buf
[1]) << 4) + fromhex (buf
[2]);
3175 status
->kind
= TARGET_WAITKIND_SIGNALLED
;
3176 status
->value
.sig
= (enum target_signal
)
3177 (((fromhex (buf
[1])) << 4) + (fromhex (buf
[2])));
3181 case 'O': /* Console output. */
3182 remote_console_output (buf
+ 1);
3183 /* Return immediately to the event loop. The event loop will
3184 still be waiting on the inferior afterwards. */
3185 status
->kind
= TARGET_WAITKIND_IGNORE
;
3188 if (last_sent_signal
!= TARGET_SIGNAL_0
)
3190 /* Zero length reply means that we tried 'S' or 'C' and
3191 the remote system doesn't support it. */
3192 target_terminal_ours_for_output ();
3194 ("Can't send signals to this remote system. %s not sent.\n",
3195 target_signal_to_name (last_sent_signal
));
3196 last_sent_signal
= TARGET_SIGNAL_0
;
3197 target_terminal_inferior ();
3199 strcpy ((char *) buf
, last_sent_step
? "s" : "c");
3200 putpkt ((char *) buf
);
3203 /* else fallthrough */
3205 warning (_("Invalid remote reply: %s"), buf
);
3210 if (thread_num
!= -1)
3212 return pid_to_ptid (thread_num
);
3214 return inferior_ptid
;
3217 /* Number of bytes of registers this stub implements. */
3219 static int register_bytes_found
;
3221 /* Read the remote registers into the block REGS. */
3222 /* Currently we just read all the registers, so we don't use regnum. */
3225 fetch_register_using_p (int regnum
)
3227 struct remote_state
*rs
= get_remote_state ();
3228 char *buf
= alloca (rs
->remote_packet_size
), *p
;
3229 char regp
[MAX_REGISTER_SIZE
];
3234 p
+= hexnumstr (p
, regnum
);
3236 remote_send (buf
, rs
->remote_packet_size
);
3238 /* If the stub didn't recognize the packet, or if we got an error,
3240 if (buf
[0] == '\0' || buf
[0] == 'E')
3243 /* If this register is unfetchable, tell the regcache. */
3246 regcache_raw_supply (current_regcache
, regnum
, NULL
);
3247 set_register_cached (regnum
, -1);
3251 /* Otherwise, parse and supply the value. */
3258 error (_("fetch_register_using_p: early buf termination"));
3262 regp
[i
++] = fromhex (p
[0]) * 16 + fromhex (p
[1]);
3265 regcache_raw_supply (current_regcache
, regnum
, regp
);
3270 remote_fetch_registers (int regnum
)
3272 struct remote_state
*rs
= get_remote_state ();
3273 char *buf
= alloca (rs
->remote_packet_size
);
3276 char *regs
= alloca (rs
->sizeof_g_packet
);
3278 set_thread (PIDGET (inferior_ptid
), 1);
3282 struct packet_reg
*reg
= packet_reg_from_regnum (rs
, regnum
);
3283 gdb_assert (reg
!= NULL
);
3284 if (!reg
->in_g_packet
)
3285 internal_error (__FILE__
, __LINE__
,
3286 _("Attempt to fetch a non G-packet register when this "
3287 "remote.c does not support the p-packet."));
3289 switch (remote_protocol_p
.support
)
3291 case PACKET_DISABLE
:
3294 if (fetch_register_using_p (regnum
))
3297 error (_("Protocol error: p packet not recognized by stub"));
3298 case PACKET_SUPPORT_UNKNOWN
:
3299 if (fetch_register_using_p (regnum
))
3301 /* The stub recognized the 'p' packet. Remember this. */
3302 remote_protocol_p
.support
= PACKET_ENABLE
;
3307 /* The stub does not support the 'P' packet. Use 'G'
3308 instead, and don't try using 'P' in the future (it
3309 will just waste our time). */
3310 remote_protocol_p
.support
= PACKET_DISABLE
;
3316 remote_send (buf
, (rs
->remote_packet_size
));
3318 /* Save the size of the packet sent to us by the target. Its used
3319 as a heuristic when determining the max size of packets that the
3320 target can safely receive. */
3321 if ((rs
->actual_register_packet_size
) == 0)
3322 (rs
->actual_register_packet_size
) = strlen (buf
);
3324 /* Unimplemented registers read as all bits zero. */
3325 memset (regs
, 0, rs
->sizeof_g_packet
);
3327 /* We can get out of synch in various cases. If the first character
3328 in the buffer is not a hex character, assume that has happened
3329 and try to fetch another packet to read. */
3330 while ((buf
[0] < '0' || buf
[0] > '9')
3331 && (buf
[0] < 'A' || buf
[0] > 'F')
3332 && (buf
[0] < 'a' || buf
[0] > 'f')
3333 && buf
[0] != 'x') /* New: unavailable register value. */
3336 fprintf_unfiltered (gdb_stdlog
,
3337 "Bad register packet; fetching a new packet\n");
3338 getpkt (buf
, (rs
->remote_packet_size
), 0);
3341 /* Reply describes registers byte by byte, each byte encoded as two
3342 hex characters. Suck them all up, then supply them to the
3343 register cacheing/storage mechanism. */
3346 for (i
= 0; i
< rs
->sizeof_g_packet
; i
++)
3352 warning (_("Remote reply is of odd length: %s"), buf
);
3353 /* Don't change register_bytes_found in this case, and don't
3354 print a second warning. */
3357 if (p
[0] == 'x' && p
[1] == 'x')
3358 regs
[i
] = 0; /* 'x' */
3360 regs
[i
] = fromhex (p
[0]) * 16 + fromhex (p
[1]);
3364 if (i
!= register_bytes_found
)
3366 register_bytes_found
= i
;
3367 if (REGISTER_BYTES_OK_P ()
3368 && !REGISTER_BYTES_OK (i
))
3369 warning (_("Remote reply is too short: %s"), buf
);
3375 for (i
= 0; i
< NUM_REGS
+ NUM_PSEUDO_REGS
; i
++)
3377 struct packet_reg
*r
= &rs
->regs
[i
];
3380 if (r
->offset
* 2 >= strlen (buf
))
3381 /* A short packet that didn't include the register's
3382 value, this implies that the register is zero (and
3383 not that the register is unavailable). Supply that
3385 regcache_raw_supply (current_regcache
, r
->regnum
, NULL
);
3386 else if (buf
[r
->offset
* 2] == 'x')
3388 gdb_assert (r
->offset
* 2 < strlen (buf
));
3389 /* The register isn't available, mark it as such (at
3390 the same time setting the value to zero). */
3391 regcache_raw_supply (current_regcache
, r
->regnum
, NULL
);
3392 set_register_cached (i
, -1);
3395 regcache_raw_supply (current_regcache
, r
->regnum
,
3402 /* Prepare to store registers. Since we may send them all (using a
3403 'G' request), we have to read out the ones we don't want to change
3407 remote_prepare_to_store (void)
3409 struct remote_state
*rs
= get_remote_state ();
3411 char buf
[MAX_REGISTER_SIZE
];
3413 /* Make sure the entire registers array is valid. */
3414 switch (remote_protocol_P
.support
)
3416 case PACKET_DISABLE
:
3417 case PACKET_SUPPORT_UNKNOWN
:
3418 /* Make sure all the necessary registers are cached. */
3419 for (i
= 0; i
< NUM_REGS
; i
++)
3420 if (rs
->regs
[i
].in_g_packet
)
3421 regcache_raw_read (current_regcache
, rs
->regs
[i
].regnum
, buf
);
3428 /* Helper: Attempt to store REGNUM using the P packet. Return fail IFF
3429 packet was not recognized. */
3432 store_register_using_P (int regnum
)
3434 struct remote_state
*rs
= get_remote_state ();
3435 struct packet_reg
*reg
= packet_reg_from_regnum (rs
, regnum
);
3436 /* Try storing a single register. */
3437 char *buf
= alloca (rs
->remote_packet_size
);
3438 char regp
[MAX_REGISTER_SIZE
];
3441 sprintf (buf
, "P%s=", phex_nz (reg
->pnum
, 0));
3442 p
= buf
+ strlen (buf
);
3443 regcache_raw_collect (current_regcache
, reg
->regnum
, regp
);
3444 bin2hex (regp
, p
, register_size (current_gdbarch
, reg
->regnum
));
3445 remote_send (buf
, rs
->remote_packet_size
);
3447 return buf
[0] != '\0';
3451 /* Store register REGNUM, or all registers if REGNUM == -1, from the
3452 contents of the register cache buffer. FIXME: ignores errors. */
3455 remote_store_registers (int regnum
)
3457 struct remote_state
*rs
= get_remote_state ();
3462 set_thread (PIDGET (inferior_ptid
), 1);
3466 switch (remote_protocol_P
.support
)
3468 case PACKET_DISABLE
:
3471 if (store_register_using_P (regnum
))
3474 error (_("Protocol error: P packet not recognized by stub"));
3475 case PACKET_SUPPORT_UNKNOWN
:
3476 if (store_register_using_P (regnum
))
3478 /* The stub recognized the 'P' packet. Remember this. */
3479 remote_protocol_P
.support
= PACKET_ENABLE
;
3484 /* The stub does not support the 'P' packet. Use 'G'
3485 instead, and don't try using 'P' in the future (it
3486 will just waste our time). */
3487 remote_protocol_P
.support
= PACKET_DISABLE
;
3493 /* Extract all the registers in the regcache copying them into a
3497 regs
= alloca (rs
->sizeof_g_packet
);
3498 memset (regs
, 0, rs
->sizeof_g_packet
);
3499 for (i
= 0; i
< NUM_REGS
+ NUM_PSEUDO_REGS
; i
++)
3501 struct packet_reg
*r
= &rs
->regs
[i
];
3503 regcache_raw_collect (current_regcache
, r
->regnum
, regs
+ r
->offset
);
3507 /* Command describes registers byte by byte,
3508 each byte encoded as two hex characters. */
3509 buf
= alloca (rs
->remote_packet_size
);
3512 /* remote_prepare_to_store insures that register_bytes_found gets set. */
3513 bin2hex (regs
, p
, register_bytes_found
);
3514 remote_send (buf
, (rs
->remote_packet_size
));
3518 /* Return the number of hex digits in num. */
3521 hexnumlen (ULONGEST num
)
3525 for (i
= 0; num
!= 0; i
++)
3531 /* Set BUF to the minimum number of hex digits representing NUM. */
3534 hexnumstr (char *buf
, ULONGEST num
)
3536 int len
= hexnumlen (num
);
3537 return hexnumnstr (buf
, num
, len
);
3541 /* Set BUF to the hex digits representing NUM, padded to WIDTH characters. */
3544 hexnumnstr (char *buf
, ULONGEST num
, int width
)
3550 for (i
= width
- 1; i
>= 0; i
--)
3552 buf
[i
] = "0123456789abcdef"[(num
& 0xf)];
3559 /* Mask all but the least significant REMOTE_ADDRESS_SIZE bits. */
3562 remote_address_masked (CORE_ADDR addr
)
3564 if (remote_address_size
> 0
3565 && remote_address_size
< (sizeof (ULONGEST
) * 8))
3567 /* Only create a mask when that mask can safely be constructed
3568 in a ULONGEST variable. */
3570 mask
= (mask
<< remote_address_size
) - 1;
3576 /* Determine whether the remote target supports binary downloading.
3577 This is accomplished by sending a no-op memory write of zero length
3578 to the target at the specified address. It does not suffice to send
3579 the whole packet, since many stubs strip the eighth bit and
3580 subsequently compute a wrong checksum, which causes real havoc with
3583 NOTE: This can still lose if the serial line is not eight-bit
3584 clean. In cases like this, the user should clear "remote
3588 check_binary_download (CORE_ADDR addr
)
3590 struct remote_state
*rs
= get_remote_state ();
3591 switch (remote_protocol_binary_download
.support
)
3593 case PACKET_DISABLE
:
3597 case PACKET_SUPPORT_UNKNOWN
:
3599 char *buf
= alloca (rs
->remote_packet_size
);
3604 p
+= hexnumstr (p
, (ULONGEST
) addr
);
3606 p
+= hexnumstr (p
, (ULONGEST
) 0);
3610 putpkt_binary (buf
, (int) (p
- buf
));
3611 getpkt (buf
, (rs
->remote_packet_size
), 0);
3616 fprintf_unfiltered (gdb_stdlog
,
3617 "binary downloading NOT suppported by target\n");
3618 remote_protocol_binary_download
.support
= PACKET_DISABLE
;
3623 fprintf_unfiltered (gdb_stdlog
,
3624 "binary downloading suppported by target\n");
3625 remote_protocol_binary_download
.support
= PACKET_ENABLE
;
3632 /* Write memory data directly to the remote machine.
3633 This does not inform the data cache; the data cache uses this.
3634 MEMADDR is the address in the remote memory space.
3635 MYADDR is the address of the buffer in our space.
3636 LEN is the number of bytes.
3638 Returns number of bytes transferred, or 0 (setting errno) for
3639 error. Only transfer a single packet. */
3642 remote_write_bytes (CORE_ADDR memaddr
, char *myaddr
, int len
)
3646 unsigned char *plen
;
3652 unsigned char *payload_start
;
3654 /* Verify that the target can support a binary download. */
3655 check_binary_download (memaddr
);
3657 payload_size
= get_memory_write_packet_size ();
3659 /* Compute the size, and then allocate space for the largest
3660 possible packet. Include space for an extra trailing NUL. */
3661 sizeof_buf
= payload_size
+ 1;
3662 buf
= alloca (sizeof_buf
);
3664 /* Compute the size of the actual payload by subtracting out the
3665 packet header and footer overhead: "$M<memaddr>,<len>:...#nn".
3667 payload_size
-= strlen ("$M,:#NN");
3668 payload_size
-= hexnumlen (memaddr
);
3670 /* Construct the packet header: "[MX]<memaddr>,<len>:". */
3672 /* Append "[XM]". Compute a best guess of the number of bytes
3673 actually transfered. */
3675 switch (remote_protocol_binary_download
.support
)
3679 /* Best guess at number of bytes that will fit. */
3680 todo
= min (len
, payload_size
);
3681 payload_size
-= hexnumlen (todo
);
3682 todo
= min (todo
, payload_size
);
3684 case PACKET_DISABLE
:
3686 /* Num bytes that will fit. */
3687 todo
= min (len
, payload_size
/ 2);
3688 payload_size
-= hexnumlen (todo
);
3689 todo
= min (todo
, payload_size
/ 2);
3691 case PACKET_SUPPORT_UNKNOWN
:
3692 internal_error (__FILE__
, __LINE__
,
3693 _("remote_write_bytes: bad internal state"));
3695 internal_error (__FILE__
, __LINE__
, _("bad switch"));
3698 internal_error (__FILE__
, __LINE__
,
3699 _("minumum packet size too small to write data"));
3701 /* Append "<memaddr>". */
3702 memaddr
= remote_address_masked (memaddr
);
3703 p
+= hexnumstr (p
, (ULONGEST
) memaddr
);
3708 /* Append <len>. Retain the location/size of <len>. It may need to
3709 be adjusted once the packet body has been created. */
3711 plenlen
= hexnumstr (p
, (ULONGEST
) todo
);
3718 /* Append the packet body. */
3720 switch (remote_protocol_binary_download
.support
)
3723 /* Binary mode. Send target system values byte by byte, in
3724 increasing byte addresses. Only escape certain critical
3727 (nr_bytes
< todo
) && (p
- payload_start
) < payload_size
;
3730 switch (myaddr
[nr_bytes
] & 0xff)
3735 /* These must be escaped. */
3737 *p
++ = (myaddr
[nr_bytes
] & 0xff) ^ 0x20;
3740 *p
++ = myaddr
[nr_bytes
] & 0xff;
3744 if (nr_bytes
< todo
)
3746 /* Escape chars have filled up the buffer prematurely,
3747 and we have actually sent fewer bytes than planned.
3748 Fix-up the length field of the packet. Use the same
3749 number of characters as before. */
3750 plen
+= hexnumnstr (plen
, (ULONGEST
) nr_bytes
, plenlen
);
3751 *plen
= ':'; /* overwrite \0 from hexnumnstr() */
3754 case PACKET_DISABLE
:
3755 /* Normal mode: Send target system values byte by byte, in
3756 increasing byte addresses. Each byte is encoded as a two hex
3758 nr_bytes
= bin2hex (myaddr
, p
, todo
);
3761 case PACKET_SUPPORT_UNKNOWN
:
3762 internal_error (__FILE__
, __LINE__
,
3763 _("remote_write_bytes: bad internal state"));
3765 internal_error (__FILE__
, __LINE__
, _("bad switch"));
3768 putpkt_binary (buf
, (int) (p
- buf
));
3769 getpkt (buf
, sizeof_buf
, 0);
3773 /* There is no correspondance between what the remote protocol
3774 uses for errors and errno codes. We would like a cleaner way
3775 of representing errors (big enough to include errno codes,
3776 bfd_error codes, and others). But for now just return EIO. */
3781 /* Return NR_BYTES, not TODO, in case escape chars caused us to send
3782 fewer bytes than we'd planned. */
3786 /* Read memory data directly from the remote machine.
3787 This does not use the data cache; the data cache uses this.
3788 MEMADDR is the address in the remote memory space.
3789 MYADDR is the address of the buffer in our space.
3790 LEN is the number of bytes.
3792 Returns number of bytes transferred, or 0 for error. */
3794 /* NOTE: cagney/1999-10-18: This function (and its siblings in other
3795 remote targets) shouldn't attempt to read the entire buffer.
3796 Instead it should read a single packet worth of data and then
3797 return the byte size of that packet to the caller. The caller (its
3798 caller and its callers caller ;-) already contains code for
3799 handling partial reads. */
3802 remote_read_bytes (CORE_ADDR memaddr
, char *myaddr
, int len
)
3805 int max_buf_size
; /* Max size of packet output buffer. */
3809 /* Create a buffer big enough for this packet. */
3810 max_buf_size
= get_memory_read_packet_size ();
3811 sizeof_buf
= max_buf_size
+ 1; /* Space for trailing NULL. */
3812 buf
= alloca (sizeof_buf
);
3821 todo
= min (len
, max_buf_size
/ 2); /* num bytes that will fit */
3823 /* construct "m"<memaddr>","<len>" */
3824 /* sprintf (buf, "m%lx,%x", (unsigned long) memaddr, todo); */
3825 memaddr
= remote_address_masked (memaddr
);
3828 p
+= hexnumstr (p
, (ULONGEST
) memaddr
);
3830 p
+= hexnumstr (p
, (ULONGEST
) todo
);
3834 getpkt (buf
, sizeof_buf
, 0);
3837 && isxdigit (buf
[1]) && isxdigit (buf
[2])
3840 /* There is no correspondance between what the remote
3841 protocol uses for errors and errno codes. We would like
3842 a cleaner way of representing errors (big enough to
3843 include errno codes, bfd_error codes, and others). But
3844 for now just return EIO. */
3849 /* Reply describes memory byte by byte,
3850 each byte encoded as two hex characters. */
3853 if ((i
= hex2bin (p
, myaddr
, todo
)) < todo
)
3855 /* Reply is short. This means that we were able to read
3856 only part of what we wanted to. */
3857 return i
+ (origlen
- len
);
3866 /* Read or write LEN bytes from inferior memory at MEMADDR,
3867 transferring to or from debugger address BUFFER. Write to inferior
3868 if SHOULD_WRITE is nonzero. Returns length of data written or
3869 read; 0 for error. TARGET is unused. */
3872 remote_xfer_memory (CORE_ADDR mem_addr
, char *buffer
, int mem_len
,
3873 int should_write
, struct mem_attrib
*attrib
,
3874 struct target_ops
*target
)
3876 CORE_ADDR targ_addr
;
3880 /* Should this be the selected frame? */
3881 gdbarch_remote_translate_xfer_address (current_gdbarch
,
3884 &targ_addr
, &targ_len
);
3889 res
= remote_write_bytes (targ_addr
, buffer
, targ_len
);
3891 res
= remote_read_bytes (targ_addr
, buffer
, targ_len
);
3897 remote_files_info (struct target_ops
*ignore
)
3899 puts_filtered ("Debugging a target over a serial line.\n");
3902 /* Stuff for dealing with the packets which are part of this protocol.
3903 See comment at top of file for details. */
3905 /* Read a single character from the remote end, masking it down to 7
3909 readchar (int timeout
)
3913 ch
= serial_readchar (remote_desc
, timeout
);
3918 switch ((enum serial_rc
) ch
)
3921 target_mourn_inferior ();
3922 error (_("Remote connection closed"));
3925 perror_with_name (_("Remote communication error"));
3927 case SERIAL_TIMEOUT
:
3933 /* Send the command in BUF to the remote machine, and read the reply
3934 into BUF. Report an error if we get an error reply. */
3937 remote_send (char *buf
,
3941 getpkt (buf
, sizeof_buf
, 0);
3944 error (_("Remote failure reply: %s"), buf
);
3947 /* Display a null-terminated packet on stdout, for debugging, using C
3951 print_packet (char *buf
)
3953 puts_filtered ("\"");
3954 fputstr_filtered (buf
, '"', gdb_stdout
);
3955 puts_filtered ("\"");
3961 return putpkt_binary (buf
, strlen (buf
));
3964 /* Send a packet to the remote machine, with error checking. The data
3965 of the packet is in BUF. The string in BUF can be at most
3966 (rs->remote_packet_size) - 5 to account for the $, # and checksum,
3967 and for a possible /0 if we are debugging (remote_debug) and want
3968 to print the sent packet as a string. */
3971 putpkt_binary (char *buf
, int cnt
)
3973 struct remote_state
*rs
= get_remote_state ();
3975 unsigned char csum
= 0;
3976 char *buf2
= alloca (cnt
+ 6);
3977 long sizeof_junkbuf
= (rs
->remote_packet_size
);
3978 char *junkbuf
= alloca (sizeof_junkbuf
);
3984 /* Copy the packet into buffer BUF2, encapsulating it
3985 and giving it a checksum. */
3990 for (i
= 0; i
< cnt
; i
++)
3996 *p
++ = tohex ((csum
>> 4) & 0xf);
3997 *p
++ = tohex (csum
& 0xf);
3999 /* Send it over and over until we get a positive ack. */
4003 int started_error_output
= 0;
4008 fprintf_unfiltered (gdb_stdlog
, "Sending packet: ");
4009 fputstrn_unfiltered (buf2
, p
- buf2
, 0, gdb_stdlog
);
4010 fprintf_unfiltered (gdb_stdlog
, "...");
4011 gdb_flush (gdb_stdlog
);
4013 if (serial_write (remote_desc
, buf2
, p
- buf2
))
4014 perror_with_name (_("putpkt: write failed"));
4016 /* Read until either a timeout occurs (-2) or '+' is read. */
4019 ch
= readchar (remote_timeout
);
4027 case SERIAL_TIMEOUT
:
4029 if (started_error_output
)
4031 putchar_unfiltered ('\n');
4032 started_error_output
= 0;
4041 fprintf_unfiltered (gdb_stdlog
, "Ack\n");
4045 fprintf_unfiltered (gdb_stdlog
, "Nak\n");
4046 case SERIAL_TIMEOUT
:
4050 break; /* Retransmit buffer. */
4054 fprintf_unfiltered (gdb_stdlog
,
4055 "Packet instead of Ack, ignoring it\n");
4056 /* It's probably an old response sent because an ACK
4057 was lost. Gobble up the packet and ack it so it
4058 doesn't get retransmitted when we resend this
4060 read_frame (junkbuf
, sizeof_junkbuf
);
4061 serial_write (remote_desc
, "+", 1);
4062 continue; /* Now, go look for +. */
4067 if (!started_error_output
)
4069 started_error_output
= 1;
4070 fprintf_unfiltered (gdb_stdlog
, "putpkt: Junk: ");
4072 fputc_unfiltered (ch
& 0177, gdb_stdlog
);
4076 break; /* Here to retransmit. */
4080 /* This is wrong. If doing a long backtrace, the user should be
4081 able to get out next time we call QUIT, without anything as
4082 violent as interrupt_query. If we want to provide a way out of
4083 here without getting to the next QUIT, it should be based on
4084 hitting ^C twice as in remote_wait. */
4094 /* Come here after finding the start of the frame. Collect the rest
4095 into BUF, verifying the checksum, length, and handling run-length
4096 compression. No more than sizeof_buf-1 characters are read so that
4097 the buffer can be NUL terminated.
4099 Returns -1 on error, number of characters in buffer (ignoring the
4100 trailing NULL) on success. (could be extended to return one of the
4101 SERIAL status indications). */
4104 read_frame (char *buf
,
4116 /* ASSERT (bc < sizeof_buf - 1) - space for trailing NULL. */
4117 c
= readchar (remote_timeout
);
4120 case SERIAL_TIMEOUT
:
4122 fputs_filtered ("Timeout in mid-packet, retrying\n", gdb_stdlog
);
4126 fputs_filtered ("Saw new packet start in middle of old one\n",
4128 return -1; /* Start a new packet, count retries. */
4131 unsigned char pktcsum
;
4137 check_0
= readchar (remote_timeout
);
4139 check_1
= readchar (remote_timeout
);
4141 if (check_0
== SERIAL_TIMEOUT
|| check_1
== SERIAL_TIMEOUT
)
4144 fputs_filtered ("Timeout in checksum, retrying\n",
4148 else if (check_0
< 0 || check_1
< 0)
4151 fputs_filtered ("Communication error in checksum\n",
4156 pktcsum
= (fromhex (check_0
) << 4) | fromhex (check_1
);
4157 if (csum
== pktcsum
)
4162 fprintf_filtered (gdb_stdlog
,
4163 "Bad checksum, sentsum=0x%x, csum=0x%x, buf=",
4165 fputs_filtered (buf
, gdb_stdlog
);
4166 fputs_filtered ("\n", gdb_stdlog
);
4168 /* Number of characters in buffer ignoring trailing
4172 case '*': /* Run length encoding. */
4177 c
= readchar (remote_timeout
);
4179 repeat
= c
- ' ' + 3; /* Compute repeat count. */
4181 /* The character before ``*'' is repeated. */
4183 if (repeat
> 0 && repeat
<= 255
4185 && bc
+ repeat
- 1 < sizeof_buf
- 1)
4187 memset (&buf
[bc
], buf
[bc
- 1], repeat
);
4193 printf_filtered (_("Repeat count %d too large for buffer: "),
4195 puts_filtered (buf
);
4196 puts_filtered ("\n");
4200 if (bc
< sizeof_buf
- 1)
4208 puts_filtered ("Remote packet too long: ");
4209 puts_filtered (buf
);
4210 puts_filtered ("\n");
4217 /* Read a packet from the remote machine, with error checking, and
4218 store it in BUF. If FOREVER, wait forever rather than timing out;
4219 this is used (in synchronous mode) to wait for a target that is is
4220 executing user code to stop. */
4221 /* FIXME: ezannoni 2000-02-01 this wrapper is necessary so that we
4222 don't have to change all the calls to getpkt to deal with the
4223 return value, because at the moment I don't know what the right
4224 thing to do it for those. */
4232 timed_out
= getpkt_sane (buf
, sizeof_buf
, forever
);
4236 /* Read a packet from the remote machine, with error checking, and
4237 store it in BUF. If FOREVER, wait forever rather than timing out;
4238 this is used (in synchronous mode) to wait for a target that is is
4239 executing user code to stop. If FOREVER == 0, this function is
4240 allowed to time out gracefully and return an indication of this to
4243 getpkt_sane (char *buf
,
4252 strcpy (buf
, "timeout");
4256 timeout
= watchdog
> 0 ? watchdog
: -1;
4260 timeout
= remote_timeout
;
4264 for (tries
= 1; tries
<= MAX_TRIES
; tries
++)
4266 /* This can loop forever if the remote side sends us characters
4267 continuously, but if it pauses, we'll get a zero from
4268 readchar because of timeout. Then we'll count that as a
4271 /* Note that we will only wait forever prior to the start of a
4272 packet. After that, we expect characters to arrive at a
4273 brisk pace. They should show up within remote_timeout
4278 c
= readchar (timeout
);
4280 if (c
== SERIAL_TIMEOUT
)
4282 if (forever
) /* Watchdog went off? Kill the target. */
4285 target_mourn_inferior ();
4286 error (_("Watchdog has expired. Target detached."));
4289 fputs_filtered ("Timed out.\n", gdb_stdlog
);
4295 /* We've found the start of a packet, now collect the data. */
4297 val
= read_frame (buf
, sizeof_buf
);
4303 fprintf_unfiltered (gdb_stdlog
, "Packet received: ");
4304 fputstr_unfiltered (buf
, 0, gdb_stdlog
);
4305 fprintf_unfiltered (gdb_stdlog
, "\n");
4307 serial_write (remote_desc
, "+", 1);
4311 /* Try the whole thing again. */
4313 serial_write (remote_desc
, "-", 1);
4316 /* We have tried hard enough, and just can't receive the packet.
4319 printf_unfiltered (_("Ignoring packet error, continuing...\n"));
4320 serial_write (remote_desc
, "+", 1);
4327 /* For some mysterious reason, wait_for_inferior calls kill instead of
4328 mourn after it gets TARGET_WAITKIND_SIGNALLED. Work around it. */
4332 target_mourn_inferior ();
4336 /* Use catch_errors so the user can quit from gdb even when we aren't on
4337 speaking terms with the remote system. */
4338 catch_errors ((catch_errors_ftype
*) putpkt
, "k", "", RETURN_MASK_ERROR
);
4340 /* Don't wait for it to die. I'm not really sure it matters whether
4341 we do or not. For the existing stubs, kill is a noop. */
4342 target_mourn_inferior ();
4345 /* Async version of remote_kill. */
4347 remote_async_kill (void)
4349 /* Unregister the file descriptor from the event loop. */
4350 if (target_is_async_p ())
4351 serial_async (remote_desc
, NULL
, 0);
4353 /* For some mysterious reason, wait_for_inferior calls kill instead of
4354 mourn after it gets TARGET_WAITKIND_SIGNALLED. Work around it. */
4358 target_mourn_inferior ();
4362 /* Use catch_errors so the user can quit from gdb even when we
4363 aren't on speaking terms with the remote system. */
4364 catch_errors ((catch_errors_ftype
*) putpkt
, "k", "", RETURN_MASK_ERROR
);
4366 /* Don't wait for it to die. I'm not really sure it matters whether
4367 we do or not. For the existing stubs, kill is a noop. */
4368 target_mourn_inferior ();
4374 remote_mourn_1 (&remote_ops
);
4378 remote_async_mourn (void)
4380 remote_mourn_1 (&remote_async_ops
);
4384 extended_remote_mourn (void)
4386 /* We do _not_ want to mourn the target like this; this will
4387 remove the extended remote target from the target stack,
4388 and the next time the user says "run" it'll fail.
4390 FIXME: What is the right thing to do here? */
4392 remote_mourn_1 (&extended_remote_ops
);
4396 /* Worker function for remote_mourn. */
4398 remote_mourn_1 (struct target_ops
*target
)
4400 unpush_target (target
);
4401 generic_mourn_inferior ();
4404 /* In the extended protocol we want to be able to do things like
4405 "run" and have them basically work as expected. So we need
4406 a special create_inferior function.
4408 FIXME: One day add support for changing the exec file
4409 we're debugging, arguments and an environment. */
4412 extended_remote_create_inferior (char *exec_file
, char *args
,
4413 char **env
, int from_tty
)
4415 /* Rip out the breakpoints; we'll reinsert them after restarting
4416 the remote server. */
4417 remove_breakpoints ();
4419 /* Now restart the remote server. */
4420 extended_remote_restart ();
4422 /* Now put the breakpoints back in. This way we're safe if the
4423 restart function works via a unix fork on the remote side. */
4424 insert_breakpoints ();
4426 /* Clean up from the last time we were running. */
4427 clear_proceed_status ();
4429 /* Let the remote process run. */
4430 proceed (-1, TARGET_SIGNAL_0
, 0);
4433 /* Async version of extended_remote_create_inferior. */
4435 extended_remote_async_create_inferior (char *exec_file
, char *args
,
4436 char **env
, int from_tty
)
4438 /* Rip out the breakpoints; we'll reinsert them after restarting
4439 the remote server. */
4440 remove_breakpoints ();
4442 /* If running asynchronously, register the target file descriptor
4443 with the event loop. */
4444 if (target_can_async_p ())
4445 target_async (inferior_event_handler
, 0);
4447 /* Now restart the remote server. */
4448 extended_remote_restart ();
4450 /* Now put the breakpoints back in. This way we're safe if the
4451 restart function works via a unix fork on the remote side. */
4452 insert_breakpoints ();
4454 /* Clean up from the last time we were running. */
4455 clear_proceed_status ();
4457 /* Let the remote process run. */
4458 proceed (-1, TARGET_SIGNAL_0
, 0);
4462 /* On some machines, e.g. 68k, we may use a different breakpoint
4463 instruction than other targets; in those use
4464 DEPRECATED_REMOTE_BREAKPOINT instead of just BREAKPOINT_FROM_PC.
4465 Also, bi-endian targets may define
4466 DEPRECATED_LITTLE_REMOTE_BREAKPOINT and
4467 DEPRECATED_BIG_REMOTE_BREAKPOINT. If none of these are defined, we
4468 just call the standard routines that are in mem-break.c. */
4470 /* NOTE: cagney/2003-06-08: This is silly. A remote and simulator
4471 target should use an identical BREAKPOINT_FROM_PC. As for native,
4472 the ARCH-OS-tdep.c code can override the default. */
4474 #if defined (DEPRECATED_LITTLE_REMOTE_BREAKPOINT) && defined (DEPRECATED_BIG_REMOTE_BREAKPOINT) && !defined(DEPRECATED_REMOTE_BREAKPOINT)
4475 #define DEPRECATED_REMOTE_BREAKPOINT
4478 #ifdef DEPRECATED_REMOTE_BREAKPOINT
4480 /* If the target isn't bi-endian, just pretend it is. */
4481 #if !defined (DEPRECATED_LITTLE_REMOTE_BREAKPOINT) && !defined (DEPRECATED_BIG_REMOTE_BREAKPOINT)
4482 #define DEPRECATED_LITTLE_REMOTE_BREAKPOINT DEPRECATED_REMOTE_BREAKPOINT
4483 #define DEPRECATED_BIG_REMOTE_BREAKPOINT DEPRECATED_REMOTE_BREAKPOINT
4486 static unsigned char big_break_insn
[] = DEPRECATED_BIG_REMOTE_BREAKPOINT
;
4487 static unsigned char little_break_insn
[] = DEPRECATED_LITTLE_REMOTE_BREAKPOINT
;
4489 #endif /* DEPRECATED_REMOTE_BREAKPOINT */
4491 /* Insert a breakpoint on targets that don't have any better
4492 breakpoint support. We read the contents of the target location
4493 and stash it, then overwrite it with a breakpoint instruction.
4494 ADDR is the target location in the target machine. CONTENTS_CACHE
4495 is a pointer to memory allocated for saving the target contents.
4496 It is guaranteed by the caller to be long enough to save the number
4497 of bytes returned by BREAKPOINT_FROM_PC. */
4500 remote_insert_breakpoint (CORE_ADDR addr
, bfd_byte
*contents_cache
)
4502 struct remote_state
*rs
= get_remote_state ();
4503 #ifdef DEPRECATED_REMOTE_BREAKPOINT
4508 /* Try the "Z" s/w breakpoint packet if it is not already disabled.
4509 If it succeeds, then set the support to PACKET_ENABLE. If it
4510 fails, and the user has explicitly requested the Z support then
4511 report an error, otherwise, mark it disabled and go on. */
4513 if (remote_protocol_Z
[Z_PACKET_SOFTWARE_BP
].support
!= PACKET_DISABLE
)
4515 char *buf
= alloca (rs
->remote_packet_size
);
4518 addr
= remote_address_masked (addr
);
4522 p
+= hexnumstr (p
, (ULONGEST
) addr
);
4523 BREAKPOINT_FROM_PC (&addr
, &bp_size
);
4524 sprintf (p
, ",%d", bp_size
);
4527 getpkt (buf
, (rs
->remote_packet_size
), 0);
4529 switch (packet_ok (buf
, &remote_protocol_Z
[Z_PACKET_SOFTWARE_BP
]))
4535 case PACKET_UNKNOWN
:
4540 #ifdef DEPRECATED_REMOTE_BREAKPOINT
4541 val
= target_read_memory (addr
, contents_cache
, sizeof big_break_insn
);
4545 if (TARGET_BYTE_ORDER
== BFD_ENDIAN_BIG
)
4546 val
= target_write_memory (addr
, (char *) big_break_insn
,
4547 sizeof big_break_insn
);
4549 val
= target_write_memory (addr
, (char *) little_break_insn
,
4550 sizeof little_break_insn
);
4555 return memory_insert_breakpoint (addr
, contents_cache
);
4556 #endif /* DEPRECATED_REMOTE_BREAKPOINT */
4560 remote_remove_breakpoint (CORE_ADDR addr
, bfd_byte
*contents_cache
)
4562 struct remote_state
*rs
= get_remote_state ();
4565 if (remote_protocol_Z
[Z_PACKET_SOFTWARE_BP
].support
!= PACKET_DISABLE
)
4567 char *buf
= alloca (rs
->remote_packet_size
);
4574 addr
= remote_address_masked (addr
);
4575 p
+= hexnumstr (p
, (ULONGEST
) addr
);
4576 BREAKPOINT_FROM_PC (&addr
, &bp_size
);
4577 sprintf (p
, ",%d", bp_size
);
4580 getpkt (buf
, (rs
->remote_packet_size
), 0);
4582 return (buf
[0] == 'E');
4585 #ifdef DEPRECATED_REMOTE_BREAKPOINT
4586 return target_write_memory (addr
, contents_cache
, sizeof big_break_insn
);
4588 return memory_remove_breakpoint (addr
, contents_cache
);
4589 #endif /* DEPRECATED_REMOTE_BREAKPOINT */
4593 watchpoint_to_Z_packet (int type
)
4607 internal_error (__FILE__
, __LINE__
,
4608 _("hw_bp_to_z: bad watchpoint type %d"), type
);
4613 remote_insert_watchpoint (CORE_ADDR addr
, int len
, int type
)
4615 struct remote_state
*rs
= get_remote_state ();
4616 char *buf
= alloca (rs
->remote_packet_size
);
4618 enum Z_packet_type packet
= watchpoint_to_Z_packet (type
);
4620 if (remote_protocol_Z
[packet
].support
== PACKET_DISABLE
)
4621 error (_("Can't set hardware watchpoints without the '%s' (%s) packet."),
4622 remote_protocol_Z
[packet
].name
,
4623 remote_protocol_Z
[packet
].title
);
4625 sprintf (buf
, "Z%x,", packet
);
4626 p
= strchr (buf
, '\0');
4627 addr
= remote_address_masked (addr
);
4628 p
+= hexnumstr (p
, (ULONGEST
) addr
);
4629 sprintf (p
, ",%x", len
);
4632 getpkt (buf
, (rs
->remote_packet_size
), 0);
4634 switch (packet_ok (buf
, &remote_protocol_Z
[packet
]))
4637 case PACKET_UNKNOWN
:
4642 internal_error (__FILE__
, __LINE__
,
4643 _("remote_insert_watchpoint: reached end of function"));
4648 remote_remove_watchpoint (CORE_ADDR addr
, int len
, int type
)
4650 struct remote_state
*rs
= get_remote_state ();
4651 char *buf
= alloca (rs
->remote_packet_size
);
4653 enum Z_packet_type packet
= watchpoint_to_Z_packet (type
);
4655 if (remote_protocol_Z
[packet
].support
== PACKET_DISABLE
)
4656 error (_("Can't clear hardware watchpoints without the '%s' (%s) packet."),
4657 remote_protocol_Z
[packet
].name
,
4658 remote_protocol_Z
[packet
].title
);
4660 sprintf (buf
, "z%x,", packet
);
4661 p
= strchr (buf
, '\0');
4662 addr
= remote_address_masked (addr
);
4663 p
+= hexnumstr (p
, (ULONGEST
) addr
);
4664 sprintf (p
, ",%x", len
);
4666 getpkt (buf
, (rs
->remote_packet_size
), 0);
4668 switch (packet_ok (buf
, &remote_protocol_Z
[packet
]))
4671 case PACKET_UNKNOWN
:
4676 internal_error (__FILE__
, __LINE__
,
4677 _("remote_remove_watchpoint: reached end of function"));
4681 int remote_hw_watchpoint_limit
= -1;
4682 int remote_hw_breakpoint_limit
= -1;
4685 remote_check_watch_resources (int type
, int cnt
, int ot
)
4687 if (type
== bp_hardware_breakpoint
)
4689 if (remote_hw_breakpoint_limit
== 0)
4691 else if (remote_hw_breakpoint_limit
< 0)
4693 else if (cnt
<= remote_hw_breakpoint_limit
)
4698 if (remote_hw_watchpoint_limit
== 0)
4700 else if (remote_hw_watchpoint_limit
< 0)
4704 else if (cnt
<= remote_hw_watchpoint_limit
)
4711 remote_stopped_by_watchpoint (void)
4713 return remote_stopped_by_watchpoint_p
;
4716 extern int stepped_after_stopped_by_watchpoint
;
4719 remote_stopped_data_address (struct target_ops
*target
, CORE_ADDR
*addr_p
)
4722 if (remote_stopped_by_watchpoint ()
4723 || stepped_after_stopped_by_watchpoint
)
4725 *addr_p
= remote_watch_data_address
;
4734 remote_insert_hw_breakpoint (CORE_ADDR addr
, char *shadow
)
4737 struct remote_state
*rs
= get_remote_state ();
4738 char *buf
= alloca (rs
->remote_packet_size
);
4741 /* The length field should be set to the size of a breakpoint
4744 BREAKPOINT_FROM_PC (&addr
, &len
);
4746 if (remote_protocol_Z
[Z_PACKET_HARDWARE_BP
].support
== PACKET_DISABLE
)
4747 error (_("Can't set hardware breakpoint without the '%s' (%s) packet."),
4748 remote_protocol_Z
[Z_PACKET_HARDWARE_BP
].name
,
4749 remote_protocol_Z
[Z_PACKET_HARDWARE_BP
].title
);
4755 addr
= remote_address_masked (addr
);
4756 p
+= hexnumstr (p
, (ULONGEST
) addr
);
4757 sprintf (p
, ",%x", len
);
4760 getpkt (buf
, (rs
->remote_packet_size
), 0);
4762 switch (packet_ok (buf
, &remote_protocol_Z
[Z_PACKET_HARDWARE_BP
]))
4765 case PACKET_UNKNOWN
:
4770 internal_error (__FILE__
, __LINE__
,
4771 _("remote_insert_hw_breakpoint: reached end of function"));
4776 remote_remove_hw_breakpoint (CORE_ADDR addr
, char *shadow
)
4779 struct remote_state
*rs
= get_remote_state ();
4780 char *buf
= alloca (rs
->remote_packet_size
);
4783 /* The length field should be set to the size of a breakpoint
4786 BREAKPOINT_FROM_PC (&addr
, &len
);
4788 if (remote_protocol_Z
[Z_PACKET_HARDWARE_BP
].support
== PACKET_DISABLE
)
4789 error (_("Can't clear hardware breakpoint without the '%s' (%s) packet."),
4790 remote_protocol_Z
[Z_PACKET_HARDWARE_BP
].name
,
4791 remote_protocol_Z
[Z_PACKET_HARDWARE_BP
].title
);
4797 addr
= remote_address_masked (addr
);
4798 p
+= hexnumstr (p
, (ULONGEST
) addr
);
4799 sprintf (p
, ",%x", len
);
4802 getpkt (buf
, (rs
->remote_packet_size
), 0);
4804 switch (packet_ok (buf
, &remote_protocol_Z
[Z_PACKET_HARDWARE_BP
]))
4807 case PACKET_UNKNOWN
:
4812 internal_error (__FILE__
, __LINE__
,
4813 _("remote_remove_hw_breakpoint: reached end of function"));
4816 /* Some targets are only capable of doing downloads, and afterwards
4817 they switch to the remote serial protocol. This function provides
4818 a clean way to get from the download target to the remote target.
4819 It's basically just a wrapper so that we don't have to expose any
4820 of the internal workings of remote.c.
4822 Prior to calling this routine, you should shutdown the current
4823 target code, else you will get the "A program is being debugged
4824 already..." message. Usually a call to pop_target() suffices. */
4827 push_remote_target (char *name
, int from_tty
)
4829 printf_filtered (_("Switching to remote protocol\n"));
4830 remote_open (name
, from_tty
);
4833 /* Table used by the crc32 function to calcuate the checksum. */
4835 static unsigned long crc32_table
[256] =
4838 static unsigned long
4839 crc32 (unsigned char *buf
, int len
, unsigned int crc
)
4841 if (!crc32_table
[1])
4843 /* Initialize the CRC table and the decoding table. */
4847 for (i
= 0; i
< 256; i
++)
4849 for (c
= i
<< 24, j
= 8; j
> 0; --j
)
4850 c
= c
& 0x80000000 ? (c
<< 1) ^ 0x04c11db7 : (c
<< 1);
4857 crc
= (crc
<< 8) ^ crc32_table
[((crc
>> 24) ^ *buf
) & 255];
4863 /* compare-sections command
4865 With no arguments, compares each loadable section in the exec bfd
4866 with the same memory range on the target, and reports mismatches.
4867 Useful for verifying the image on the target against the exec file.
4868 Depends on the target understanding the new "qCRC:" request. */
4870 /* FIXME: cagney/1999-10-26: This command should be broken down into a
4871 target method (target verify memory) and generic version of the
4872 actual command. This will allow other high-level code (especially
4873 generic_load()) to make use of this target functionality. */
4876 compare_sections_command (char *args
, int from_tty
)
4878 struct remote_state
*rs
= get_remote_state ();
4880 unsigned long host_crc
, target_crc
;
4881 extern bfd
*exec_bfd
;
4882 struct cleanup
*old_chain
;
4885 const char *sectname
;
4886 char *buf
= alloca (rs
->remote_packet_size
);
4893 error (_("command cannot be used without an exec file"));
4894 if (!current_target
.to_shortname
||
4895 strcmp (current_target
.to_shortname
, "remote") != 0)
4896 error (_("command can only be used with remote target"));
4898 for (s
= exec_bfd
->sections
; s
; s
= s
->next
)
4900 if (!(s
->flags
& SEC_LOAD
))
4901 continue; /* skip non-loadable section */
4903 size
= bfd_get_section_size (s
);
4905 continue; /* skip zero-length section */
4907 sectname
= bfd_get_section_name (exec_bfd
, s
);
4908 if (args
&& strcmp (args
, sectname
) != 0)
4909 continue; /* not the section selected by user */
4911 matched
= 1; /* do this section */
4913 /* FIXME: assumes lma can fit into long. */
4914 sprintf (buf
, "qCRC:%lx,%lx", (long) lma
, (long) size
);
4917 /* Be clever; compute the host_crc before waiting for target
4919 sectdata
= xmalloc (size
);
4920 old_chain
= make_cleanup (xfree
, sectdata
);
4921 bfd_get_section_contents (exec_bfd
, s
, sectdata
, 0, size
);
4922 host_crc
= crc32 ((unsigned char *) sectdata
, size
, 0xffffffff);
4924 getpkt (buf
, (rs
->remote_packet_size
), 0);
4926 error (_("target memory fault, section %s, range 0x%s -- 0x%s"),
4927 sectname
, paddr (lma
), paddr (lma
+ size
));
4929 error (_("remote target does not support this operation"));
4931 for (target_crc
= 0, tmp
= &buf
[1]; *tmp
; tmp
++)
4932 target_crc
= target_crc
* 16 + fromhex (*tmp
);
4934 printf_filtered ("Section %s, range 0x%s -- 0x%s: ",
4935 sectname
, paddr (lma
), paddr (lma
+ size
));
4936 if (host_crc
== target_crc
)
4937 printf_filtered ("matched.\n");
4940 printf_filtered ("MIS-MATCHED!\n");
4944 do_cleanups (old_chain
);
4947 warning (_("One or more sections of the remote executable does not match\n\
4948 the loaded file\n"));
4949 if (args
&& !matched
)
4950 printf_filtered (_("No loaded section named '%s'.\n"), args
);
4954 remote_xfer_partial (struct target_ops
*ops
, enum target_object object
,
4955 const char *annex
, void *readbuf
, const void *writebuf
,
4956 ULONGEST offset
, LONGEST len
)
4958 struct remote_state
*rs
= get_remote_state ();
4960 char *buf2
= alloca (rs
->remote_packet_size
);
4961 char *p2
= &buf2
[0];
4964 /* Handle memory using remote_xfer_memory. */
4965 if (object
== TARGET_OBJECT_MEMORY
)
4970 if (writebuf
!= NULL
)
4972 void *buffer
= xmalloc (len
);
4973 struct cleanup
*cleanup
= make_cleanup (xfree
, buffer
);
4974 memcpy (buffer
, writebuf
, len
);
4975 xfered
= remote_xfer_memory (offset
, buffer
, len
, 1, NULL
, ops
);
4976 do_cleanups (cleanup
);
4979 xfered
= remote_xfer_memory (offset
, readbuf
, len
, 0, NULL
, ops
);
4983 else if (xfered
== 0 && errno
== 0)
4989 /* Only handle reads. */
4990 if (writebuf
!= NULL
|| readbuf
== NULL
)
4993 /* Map pre-existing objects onto letters. DO NOT do this for new
4994 objects!!! Instead specify new query packets. */
4997 case TARGET_OBJECT_KOD
:
5000 case TARGET_OBJECT_AVR
:
5004 case TARGET_OBJECT_AUXV
:
5005 if (remote_protocol_qPart_auxv
.support
!= PACKET_DISABLE
)
5007 unsigned int total
= 0;
5010 LONGEST n
= min ((rs
->remote_packet_size
- 2) / 2, len
);
5011 snprintf (buf2
, rs
->remote_packet_size
,
5012 "qPart:auxv:read::%s,%s",
5013 phex_nz (offset
, sizeof offset
),
5014 phex_nz (n
, sizeof n
));
5017 return total
> 0 ? total
: i
;
5019 getpkt (buf2
, rs
->remote_packet_size
, 0);
5020 if (packet_ok (buf2
, &remote_protocol_qPart_auxv
) != PACKET_OK
)
5021 return total
> 0 ? total
: -1;
5022 if (buf2
[0] == 'O' && buf2
[1] == 'K' && buf2
[2] == '\0')
5023 break; /* Got EOF indicator. */
5024 /* Got some data. */
5025 i
= hex2bin (buf2
, readbuf
, len
);
5028 readbuf
= (void *) ((char *) readbuf
+ i
);
5042 /* Note: a zero OFFSET and LEN can be used to query the minimum
5044 if (offset
== 0 && len
== 0)
5045 return (rs
->remote_packet_size
);
5046 /* Minimum outbuf size is (rs->remote_packet_size) - if bufsiz is
5047 not large enough let the caller. */
5048 if (len
< (rs
->remote_packet_size
))
5050 len
= rs
->remote_packet_size
;
5052 /* Except for querying the minimum buffer size, target must be open. */
5054 error (_("remote query is only available after target open"));
5056 gdb_assert (annex
!= NULL
);
5057 gdb_assert (readbuf
!= NULL
);
5062 /* We used one buffer char for the remote protocol q command and
5063 another for the query type. As the remote protocol encapsulation
5064 uses 4 chars plus one extra in case we are debugging
5065 (remote_debug), we have PBUFZIZ - 7 left to pack the query
5068 while (annex
[i
] && (i
< ((rs
->remote_packet_size
) - 8)))
5070 /* Bad caller may have sent forbidden characters. */
5071 gdb_assert (isprint (annex
[i
]) && annex
[i
] != '$' && annex
[i
] != '#');
5076 gdb_assert (annex
[i
] == '\0');
5082 getpkt (readbuf
, len
, 0);
5084 return strlen (readbuf
);
5088 remote_rcmd (char *command
,
5089 struct ui_file
*outbuf
)
5091 struct remote_state
*rs
= get_remote_state ();
5092 char *buf
= alloca (rs
->remote_packet_size
);
5096 error (_("remote rcmd is only available after target open"));
5098 /* Send a NULL command across as an empty command. */
5099 if (command
== NULL
)
5102 /* The query prefix. */
5103 strcpy (buf
, "qRcmd,");
5104 p
= strchr (buf
, '\0');
5106 if ((strlen (buf
) + strlen (command
) * 2 + 8/*misc*/) > (rs
->remote_packet_size
))
5107 error (_("\"monitor\" command ``%s'' is too long."), command
);
5109 /* Encode the actual command. */
5110 bin2hex (command
, p
, 0);
5112 if (putpkt (buf
) < 0)
5113 error (_("Communication problem with target."));
5115 /* get/display the response */
5118 /* XXX - see also tracepoint.c:remote_get_noisy_reply(). */
5120 getpkt (buf
, (rs
->remote_packet_size
), 0);
5122 error (_("Target does not support this command."));
5123 if (buf
[0] == 'O' && buf
[1] != 'K')
5125 remote_console_output (buf
+ 1); /* 'O' message from stub. */
5128 if (strcmp (buf
, "OK") == 0)
5130 if (strlen (buf
) == 3 && buf
[0] == 'E'
5131 && isdigit (buf
[1]) && isdigit (buf
[2]))
5133 error (_("Protocol error with Rcmd"));
5135 for (p
= buf
; p
[0] != '\0' && p
[1] != '\0'; p
+= 2)
5137 char c
= (fromhex (p
[0]) << 4) + fromhex (p
[1]);
5138 fputc_unfiltered (c
, outbuf
);
5145 packet_command (char *args
, int from_tty
)
5147 struct remote_state
*rs
= get_remote_state ();
5148 char *buf
= alloca (rs
->remote_packet_size
);
5151 error (_("command can only be used with remote target"));
5154 error (_("remote-packet command requires packet text as argument"));
5156 puts_filtered ("sending: ");
5157 print_packet (args
);
5158 puts_filtered ("\n");
5161 getpkt (buf
, (rs
->remote_packet_size
), 0);
5162 puts_filtered ("received: ");
5164 puts_filtered ("\n");
5168 /* --------- UNIT_TEST for THREAD oriented PACKETS ------------------- */
5170 static void display_thread_info (struct gdb_ext_thread_info
*info
);
5172 static void threadset_test_cmd (char *cmd
, int tty
);
5174 static void threadalive_test (char *cmd
, int tty
);
5176 static void threadlist_test_cmd (char *cmd
, int tty
);
5178 int get_and_display_threadinfo (threadref
*ref
);
5180 static void threadinfo_test_cmd (char *cmd
, int tty
);
5182 static int thread_display_step (threadref
*ref
, void *context
);
5184 static void threadlist_update_test_cmd (char *cmd
, int tty
);
5186 static void init_remote_threadtests (void);
5188 #define SAMPLE_THREAD 0x05060708 /* Truncated 64 bit threadid. */
5191 threadset_test_cmd (char *cmd
, int tty
)
5193 int sample_thread
= SAMPLE_THREAD
;
5195 printf_filtered (_("Remote threadset test\n"));
5196 set_thread (sample_thread
, 1);
5201 threadalive_test (char *cmd
, int tty
)
5203 int sample_thread
= SAMPLE_THREAD
;
5205 if (remote_thread_alive (pid_to_ptid (sample_thread
)))
5206 printf_filtered ("PASS: Thread alive test\n");
5208 printf_filtered ("FAIL: Thread alive test\n");
5211 void output_threadid (char *title
, threadref
*ref
);
5214 output_threadid (char *title
, threadref
*ref
)
5218 pack_threadid (&hexid
[0], ref
); /* Convert threead id into hex. */
5220 printf_filtered ("%s %s\n", title
, (&hexid
[0]));
5224 threadlist_test_cmd (char *cmd
, int tty
)
5227 threadref nextthread
;
5228 int done
, result_count
;
5229 threadref threadlist
[3];
5231 printf_filtered ("Remote Threadlist test\n");
5232 if (!remote_get_threadlist (startflag
, &nextthread
, 3, &done
,
5233 &result_count
, &threadlist
[0]))
5234 printf_filtered ("FAIL: threadlist test\n");
5237 threadref
*scan
= threadlist
;
5238 threadref
*limit
= scan
+ result_count
;
5240 while (scan
< limit
)
5241 output_threadid (" thread ", scan
++);
5246 display_thread_info (struct gdb_ext_thread_info
*info
)
5248 output_threadid ("Threadid: ", &info
->threadid
);
5249 printf_filtered ("Name: %s\n ", info
->shortname
);
5250 printf_filtered ("State: %s\n", info
->display
);
5251 printf_filtered ("other: %s\n\n", info
->more_display
);
5255 get_and_display_threadinfo (threadref
*ref
)
5259 struct gdb_ext_thread_info threadinfo
;
5261 set
= TAG_THREADID
| TAG_EXISTS
| TAG_THREADNAME
5262 | TAG_MOREDISPLAY
| TAG_DISPLAY
;
5263 if (0 != (result
= remote_get_threadinfo (ref
, set
, &threadinfo
)))
5264 display_thread_info (&threadinfo
);
5269 threadinfo_test_cmd (char *cmd
, int tty
)
5271 int athread
= SAMPLE_THREAD
;
5275 int_to_threadref (&thread
, athread
);
5276 printf_filtered ("Remote Threadinfo test\n");
5277 if (!get_and_display_threadinfo (&thread
))
5278 printf_filtered ("FAIL cannot get thread info\n");
5282 thread_display_step (threadref
*ref
, void *context
)
5284 /* output_threadid(" threadstep ",ref); *//* simple test */
5285 return get_and_display_threadinfo (ref
);
5289 threadlist_update_test_cmd (char *cmd
, int tty
)
5291 printf_filtered ("Remote Threadlist update test\n");
5292 remote_threadlist_iterator (thread_display_step
, 0, CRAZY_MAX_THREADS
);
5296 init_remote_threadtests (void)
5298 add_com ("tlist", class_obscure
, threadlist_test_cmd
, _("\
5299 Fetch and print the remote list of thread identifiers, one pkt only"));
5300 add_com ("tinfo", class_obscure
, threadinfo_test_cmd
,
5301 _("Fetch and display info about one thread"));
5302 add_com ("tset", class_obscure
, threadset_test_cmd
,
5303 _("Test setting to a different thread"));
5304 add_com ("tupd", class_obscure
, threadlist_update_test_cmd
,
5305 _("Iterate through updating all remote thread info"));
5306 add_com ("talive", class_obscure
, threadalive_test
,
5307 _(" Remote thread alive test "));
5312 /* Convert a thread ID to a string. Returns the string in a static
5316 remote_pid_to_str (ptid_t ptid
)
5318 static char buf
[32];
5321 size
= snprintf (buf
, sizeof buf
, "thread %d", ptid_get_pid (ptid
));
5322 gdb_assert (size
< sizeof buf
);
5326 /* Get the address of the thread local variable in OBJFILE which is
5327 stored at OFFSET within the thread local storage for thread PTID. */
5330 remote_get_thread_local_address (ptid_t ptid
, CORE_ADDR lm
, CORE_ADDR offset
)
5332 if (remote_protocol_qGetTLSAddr
.support
!= PACKET_DISABLE
)
5334 struct remote_state
*rs
= get_remote_state ();
5335 char *buf
= alloca (rs
->remote_packet_size
);
5337 enum packet_result result
;
5339 strcpy (p
, "qGetTLSAddr:");
5341 p
+= hexnumstr (p
, PIDGET (ptid
));
5343 p
+= hexnumstr (p
, offset
);
5345 p
+= hexnumstr (p
, lm
);
5349 getpkt (buf
, rs
->remote_packet_size
, 0);
5350 result
= packet_ok (buf
, &remote_protocol_qGetTLSAddr
);
5351 if (result
== PACKET_OK
)
5355 unpack_varlen_hex (buf
, &result
);
5358 else if (result
== PACKET_UNKNOWN
)
5359 throw_error (TLS_GENERIC_ERROR
,
5360 _("Remote target doesn't support qGetTLSAddr packet"));
5362 throw_error (TLS_GENERIC_ERROR
,
5363 _("Remote target failed to process qGetTLSAddr request"));
5366 throw_error (TLS_GENERIC_ERROR
,
5367 _("TLS not supported or disabled on this target"));
5373 init_remote_ops (void)
5375 remote_ops
.to_shortname
= "remote";
5376 remote_ops
.to_longname
= "Remote serial target in gdb-specific protocol";
5378 "Use a remote computer via a serial line, using a gdb-specific protocol.\n\
5379 Specify the serial device it is connected to\n\
5380 (e.g. /dev/ttyS0, /dev/ttya, COM1, etc.).";
5381 remote_ops
.to_open
= remote_open
;
5382 remote_ops
.to_close
= remote_close
;
5383 remote_ops
.to_detach
= remote_detach
;
5384 remote_ops
.to_disconnect
= remote_disconnect
;
5385 remote_ops
.to_resume
= remote_resume
;
5386 remote_ops
.to_wait
= remote_wait
;
5387 remote_ops
.to_fetch_registers
= remote_fetch_registers
;
5388 remote_ops
.to_store_registers
= remote_store_registers
;
5389 remote_ops
.to_prepare_to_store
= remote_prepare_to_store
;
5390 remote_ops
.deprecated_xfer_memory
= remote_xfer_memory
;
5391 remote_ops
.to_files_info
= remote_files_info
;
5392 remote_ops
.to_insert_breakpoint
= remote_insert_breakpoint
;
5393 remote_ops
.to_remove_breakpoint
= remote_remove_breakpoint
;
5394 remote_ops
.to_stopped_by_watchpoint
= remote_stopped_by_watchpoint
;
5395 remote_ops
.to_stopped_data_address
= remote_stopped_data_address
;
5396 remote_ops
.to_can_use_hw_breakpoint
= remote_check_watch_resources
;
5397 remote_ops
.to_insert_hw_breakpoint
= remote_insert_hw_breakpoint
;
5398 remote_ops
.to_remove_hw_breakpoint
= remote_remove_hw_breakpoint
;
5399 remote_ops
.to_insert_watchpoint
= remote_insert_watchpoint
;
5400 remote_ops
.to_remove_watchpoint
= remote_remove_watchpoint
;
5401 remote_ops
.to_kill
= remote_kill
;
5402 remote_ops
.to_load
= generic_load
;
5403 remote_ops
.to_mourn_inferior
= remote_mourn
;
5404 remote_ops
.to_thread_alive
= remote_thread_alive
;
5405 remote_ops
.to_find_new_threads
= remote_threads_info
;
5406 remote_ops
.to_pid_to_str
= remote_pid_to_str
;
5407 remote_ops
.to_extra_thread_info
= remote_threads_extra_info
;
5408 remote_ops
.to_stop
= remote_stop
;
5409 remote_ops
.to_xfer_partial
= remote_xfer_partial
;
5410 remote_ops
.to_rcmd
= remote_rcmd
;
5411 remote_ops
.to_get_thread_local_address
= remote_get_thread_local_address
;
5412 remote_ops
.to_stratum
= process_stratum
;
5413 remote_ops
.to_has_all_memory
= 1;
5414 remote_ops
.to_has_memory
= 1;
5415 remote_ops
.to_has_stack
= 1;
5416 remote_ops
.to_has_registers
= 1;
5417 remote_ops
.to_has_execution
= 1;
5418 remote_ops
.to_has_thread_control
= tc_schedlock
; /* can lock scheduler */
5419 remote_ops
.to_magic
= OPS_MAGIC
;
5422 /* Set up the extended remote vector by making a copy of the standard
5423 remote vector and adding to it. */
5426 init_extended_remote_ops (void)
5428 extended_remote_ops
= remote_ops
;
5430 extended_remote_ops
.to_shortname
= "extended-remote";
5431 extended_remote_ops
.to_longname
=
5432 "Extended remote serial target in gdb-specific protocol";
5433 extended_remote_ops
.to_doc
=
5434 "Use a remote computer via a serial line, using a gdb-specific protocol.\n\
5435 Specify the serial device it is connected to (e.g. /dev/ttya).",
5436 extended_remote_ops
.to_open
= extended_remote_open
;
5437 extended_remote_ops
.to_create_inferior
= extended_remote_create_inferior
;
5438 extended_remote_ops
.to_mourn_inferior
= extended_remote_mourn
;
5442 remote_can_async_p (void)
5444 /* We're async whenever the serial device is. */
5445 return (current_target
.to_async_mask_value
) && serial_can_async_p (remote_desc
);
5449 remote_is_async_p (void)
5451 /* We're async whenever the serial device is. */
5452 return (current_target
.to_async_mask_value
) && serial_is_async_p (remote_desc
);
5455 /* Pass the SERIAL event on and up to the client. One day this code
5456 will be able to delay notifying the client of an event until the
5457 point where an entire packet has been received. */
5459 static void (*async_client_callback
) (enum inferior_event_type event_type
,
5461 static void *async_client_context
;
5462 static serial_event_ftype remote_async_serial_handler
;
5465 remote_async_serial_handler (struct serial
*scb
, void *context
)
5467 /* Don't propogate error information up to the client. Instead let
5468 the client find out about the error by querying the target. */
5469 async_client_callback (INF_REG_EVENT
, async_client_context
);
5473 remote_async (void (*callback
) (enum inferior_event_type event_type
,
5474 void *context
), void *context
)
5476 if (current_target
.to_async_mask_value
== 0)
5477 internal_error (__FILE__
, __LINE__
,
5478 _("Calling remote_async when async is masked"));
5480 if (callback
!= NULL
)
5482 serial_async (remote_desc
, remote_async_serial_handler
, NULL
);
5483 async_client_callback
= callback
;
5484 async_client_context
= context
;
5487 serial_async (remote_desc
, NULL
, NULL
);
5490 /* Target async and target extended-async.
5492 This are temporary targets, until it is all tested. Eventually
5493 async support will be incorporated int the usual 'remote'
5497 init_remote_async_ops (void)
5499 remote_async_ops
.to_shortname
= "async";
5500 remote_async_ops
.to_longname
=
5501 "Remote serial target in async version of the gdb-specific protocol";
5502 remote_async_ops
.to_doc
=
5503 "Use a remote computer via a serial line, using a gdb-specific protocol.\n\
5504 Specify the serial device it is connected to (e.g. /dev/ttya).";
5505 remote_async_ops
.to_open
= remote_async_open
;
5506 remote_async_ops
.to_close
= remote_close
;
5507 remote_async_ops
.to_detach
= remote_detach
;
5508 remote_async_ops
.to_disconnect
= remote_disconnect
;
5509 remote_async_ops
.to_resume
= remote_async_resume
;
5510 remote_async_ops
.to_wait
= remote_async_wait
;
5511 remote_async_ops
.to_fetch_registers
= remote_fetch_registers
;
5512 remote_async_ops
.to_store_registers
= remote_store_registers
;
5513 remote_async_ops
.to_prepare_to_store
= remote_prepare_to_store
;
5514 remote_async_ops
.deprecated_xfer_memory
= remote_xfer_memory
;
5515 remote_async_ops
.to_files_info
= remote_files_info
;
5516 remote_async_ops
.to_insert_breakpoint
= remote_insert_breakpoint
;
5517 remote_async_ops
.to_remove_breakpoint
= remote_remove_breakpoint
;
5518 remote_async_ops
.to_can_use_hw_breakpoint
= remote_check_watch_resources
;
5519 remote_async_ops
.to_insert_hw_breakpoint
= remote_insert_hw_breakpoint
;
5520 remote_async_ops
.to_remove_hw_breakpoint
= remote_remove_hw_breakpoint
;
5521 remote_async_ops
.to_insert_watchpoint
= remote_insert_watchpoint
;
5522 remote_async_ops
.to_remove_watchpoint
= remote_remove_watchpoint
;
5523 remote_async_ops
.to_stopped_by_watchpoint
= remote_stopped_by_watchpoint
;
5524 remote_async_ops
.to_stopped_data_address
= remote_stopped_data_address
;
5525 remote_async_ops
.to_terminal_inferior
= remote_async_terminal_inferior
;
5526 remote_async_ops
.to_terminal_ours
= remote_async_terminal_ours
;
5527 remote_async_ops
.to_kill
= remote_async_kill
;
5528 remote_async_ops
.to_load
= generic_load
;
5529 remote_async_ops
.to_mourn_inferior
= remote_async_mourn
;
5530 remote_async_ops
.to_thread_alive
= remote_thread_alive
;
5531 remote_async_ops
.to_find_new_threads
= remote_threads_info
;
5532 remote_async_ops
.to_pid_to_str
= remote_pid_to_str
;
5533 remote_async_ops
.to_extra_thread_info
= remote_threads_extra_info
;
5534 remote_async_ops
.to_stop
= remote_stop
;
5535 remote_async_ops
.to_xfer_partial
= remote_xfer_partial
;
5536 remote_async_ops
.to_rcmd
= remote_rcmd
;
5537 remote_async_ops
.to_stratum
= process_stratum
;
5538 remote_async_ops
.to_has_all_memory
= 1;
5539 remote_async_ops
.to_has_memory
= 1;
5540 remote_async_ops
.to_has_stack
= 1;
5541 remote_async_ops
.to_has_registers
= 1;
5542 remote_async_ops
.to_has_execution
= 1;
5543 remote_async_ops
.to_has_thread_control
= tc_schedlock
; /* can lock scheduler */
5544 remote_async_ops
.to_can_async_p
= remote_can_async_p
;
5545 remote_async_ops
.to_is_async_p
= remote_is_async_p
;
5546 remote_async_ops
.to_async
= remote_async
;
5547 remote_async_ops
.to_async_mask_value
= 1;
5548 remote_async_ops
.to_magic
= OPS_MAGIC
;
5551 /* Set up the async extended remote vector by making a copy of the standard
5552 remote vector and adding to it. */
5555 init_extended_async_remote_ops (void)
5557 extended_async_remote_ops
= remote_async_ops
;
5559 extended_async_remote_ops
.to_shortname
= "extended-async";
5560 extended_async_remote_ops
.to_longname
=
5561 "Extended remote serial target in async gdb-specific protocol";
5562 extended_async_remote_ops
.to_doc
=
5563 "Use a remote computer via a serial line, using an async gdb-specific protocol.\n\
5564 Specify the serial device it is connected to (e.g. /dev/ttya).",
5565 extended_async_remote_ops
.to_open
= extended_remote_async_open
;
5566 extended_async_remote_ops
.to_create_inferior
= extended_remote_async_create_inferior
;
5567 extended_async_remote_ops
.to_mourn_inferior
= extended_remote_mourn
;
5571 set_remote_cmd (char *args
, int from_tty
)
5576 show_remote_cmd (char *args
, int from_tty
)
5578 /* FIXME: cagney/2002-06-15: This function should iterate over
5579 remote_show_cmdlist for a list of sub commands to show. */
5580 show_remote_protocol_Z_packet_cmd (gdb_stdout
, from_tty
, NULL
, NULL
);
5581 show_remote_protocol_P_packet_cmd (gdb_stdout
, from_tty
, NULL
, NULL
);
5582 show_remote_protocol_p_packet_cmd (gdb_stdout
, from_tty
, NULL
, NULL
);
5583 show_remote_protocol_qSymbol_packet_cmd (gdb_stdout
, from_tty
, NULL
, NULL
);
5584 show_remote_protocol_vcont_packet_cmd (gdb_stdout
, from_tty
, NULL
, NULL
);
5585 show_remote_protocol_binary_download_cmd (gdb_stdout
, from_tty
, NULL
, NULL
);
5586 show_remote_protocol_qPart_auxv_packet_cmd (gdb_stdout
, from_tty
, NULL
, NULL
);
5587 show_remote_protocol_qGetTLSAddr_packet_cmd (gdb_stdout
, from_tty
, NULL
, NULL
);
5591 build_remote_gdbarch_data (void)
5593 remote_address_size
= TARGET_ADDR_BIT
;
5596 /* Saved pointer to previous owner of the new_objfile event. */
5597 static void (*remote_new_objfile_chain
) (struct objfile
*);
5599 /* Function to be called whenever a new objfile (shlib) is detected. */
5601 remote_new_objfile (struct objfile
*objfile
)
5603 if (remote_desc
!= 0) /* Have a remote connection. */
5605 remote_check_symbols (objfile
);
5607 /* Call predecessor on chain, if any. */
5608 if (remote_new_objfile_chain
!= 0 &&
5610 remote_new_objfile_chain (objfile
);
5614 _initialize_remote (void)
5616 static struct cmd_list_element
*remote_set_cmdlist
;
5617 static struct cmd_list_element
*remote_show_cmdlist
;
5619 /* architecture specific data */
5620 remote_gdbarch_data_handle
=
5621 gdbarch_data_register_post_init (init_remote_state
);
5623 /* Old tacky stuff. NOTE: This comes after the remote protocol so
5624 that the remote protocol has been initialized. */
5625 DEPRECATED_REGISTER_GDBARCH_SWAP (remote_address_size
);
5626 deprecated_register_gdbarch_swap (NULL
, 0, build_remote_gdbarch_data
);
5629 add_target (&remote_ops
);
5631 init_extended_remote_ops ();
5632 add_target (&extended_remote_ops
);
5634 init_remote_async_ops ();
5635 add_target (&remote_async_ops
);
5637 init_extended_async_remote_ops ();
5638 add_target (&extended_async_remote_ops
);
5640 /* Hook into new objfile notification. */
5641 remote_new_objfile_chain
= deprecated_target_new_objfile_hook
;
5642 deprecated_target_new_objfile_hook
= remote_new_objfile
;
5645 init_remote_threadtests ();
5648 /* set/show remote ... */
5650 add_prefix_cmd ("remote", class_maintenance
, set_remote_cmd
, _("\
5651 Remote protocol specific variables\n\
5652 Configure various remote-protocol specific variables such as\n\
5653 the packets being used"),
5654 &remote_set_cmdlist
, "set remote ",
5655 0 /* allow-unknown */, &setlist
);
5656 add_prefix_cmd ("remote", class_maintenance
, show_remote_cmd
, _("\
5657 Remote protocol specific variables\n\
5658 Configure various remote-protocol specific variables such as\n\
5659 the packets being used"),
5660 &remote_show_cmdlist
, "show remote ",
5661 0 /* allow-unknown */, &showlist
);
5663 add_cmd ("compare-sections", class_obscure
, compare_sections_command
, _("\
5664 Compare section data on target to the exec file.\n\
5665 Argument is a single section name (default: all loaded sections)."),
5668 add_cmd ("packet", class_maintenance
, packet_command
, _("\
5669 Send an arbitrary packet to a remote target.\n\
5670 maintenance packet TEXT\n\
5671 If GDB is talking to an inferior via the GDB serial protocol, then\n\
5672 this command sends the string TEXT to the inferior, and displays the\n\
5673 response packet. GDB supplies the initial `$' character, and the\n\
5674 terminating `#' character and checksum."),
5677 add_setshow_boolean_cmd ("remotebreak", no_class
, &remote_break
, _("\
5678 Set whether to send break if interrupted."), _("\
5679 Show whether to send break if interrupted."), _("\
5680 If set, a break, instead of a cntrl-c, is sent to the remote target."),
5681 NULL
, NULL
, /* FIXME: i18n: Whether to send break if interrupted is %s. */
5682 &setlist
, &showlist
);
5684 /* Install commands for configuring memory read/write packets. */
5686 add_cmd ("remotewritesize", no_class
, set_memory_write_packet_size
, _("\
5687 Set the maximum number of bytes per memory write packet (deprecated)."),
5689 add_cmd ("remotewritesize", no_class
, show_memory_write_packet_size
, _("\
5690 Show the maximum number of bytes per memory write packet (deprecated)."),
5692 add_cmd ("memory-write-packet-size", no_class
,
5693 set_memory_write_packet_size
, _("\
5694 Set the maximum number of bytes per memory-write packet.\n\
5695 Specify the number of bytes in a packet or 0 (zero) for the\n\
5696 default packet size. The actual limit is further reduced\n\
5697 dependent on the target. Specify ``fixed'' to disable the\n\
5698 further restriction and ``limit'' to enable that restriction."),
5699 &remote_set_cmdlist
);
5700 add_cmd ("memory-read-packet-size", no_class
,
5701 set_memory_read_packet_size
, _("\
5702 Set the maximum number of bytes per memory-read packet.\n\
5703 Specify the number of bytes in a packet or 0 (zero) for the\n\
5704 default packet size. The actual limit is further reduced\n\
5705 dependent on the target. Specify ``fixed'' to disable the\n\
5706 further restriction and ``limit'' to enable that restriction."),
5707 &remote_set_cmdlist
);
5708 add_cmd ("memory-write-packet-size", no_class
,
5709 show_memory_write_packet_size
,
5710 _("Show the maximum number of bytes per memory-write packet."),
5711 &remote_show_cmdlist
);
5712 add_cmd ("memory-read-packet-size", no_class
,
5713 show_memory_read_packet_size
,
5714 _("Show the maximum number of bytes per memory-read packet."),
5715 &remote_show_cmdlist
);
5717 add_setshow_zinteger_cmd ("hardware-watchpoint-limit", no_class
,
5718 &remote_hw_watchpoint_limit
, _("\
5719 Set the maximum number of target hardware watchpoints."), _("\
5720 Show the maximum number of target hardware watchpoints."), _("\
5721 Specify a negative limit for unlimited."),
5722 NULL
, NULL
, /* FIXME: i18n: The maximum number of target hardware watchpoints is %s. */
5723 &remote_set_cmdlist
, &remote_show_cmdlist
);
5724 add_setshow_zinteger_cmd ("hardware-breakpoint-limit", no_class
,
5725 &remote_hw_breakpoint_limit
, _("\
5726 Set the maximum number of target hardware breakpoints."), _("\
5727 Show the maximum number of target hardware breakpoints."), _("\
5728 Specify a negative limit for unlimited."),
5729 NULL
, NULL
, /* FIXME: i18n: The maximum number of target hardware breakpoints is %s. */
5730 &remote_set_cmdlist
, &remote_show_cmdlist
);
5732 add_setshow_integer_cmd ("remoteaddresssize", class_obscure
,
5733 &remote_address_size
, _("\
5734 Set the maximum size of the address (in bits) in a memory packet."), _("\
5735 Show the maximum size of the address (in bits) in a memory packet."), NULL
,
5737 NULL
, /* FIXME: i18n: */
5738 &setlist
, &showlist
);
5740 add_packet_config_cmd (&remote_protocol_binary_download
,
5741 "X", "binary-download",
5742 set_remote_protocol_binary_download_cmd
,
5743 show_remote_protocol_binary_download_cmd
,
5744 &remote_set_cmdlist
, &remote_show_cmdlist
,
5747 add_packet_config_cmd (&remote_protocol_vcont
,
5748 "vCont", "verbose-resume",
5749 set_remote_protocol_vcont_packet_cmd
,
5750 show_remote_protocol_vcont_packet_cmd
,
5751 &remote_set_cmdlist
, &remote_show_cmdlist
,
5754 add_packet_config_cmd (&remote_protocol_qSymbol
,
5755 "qSymbol", "symbol-lookup",
5756 set_remote_protocol_qSymbol_packet_cmd
,
5757 show_remote_protocol_qSymbol_packet_cmd
,
5758 &remote_set_cmdlist
, &remote_show_cmdlist
,
5761 add_packet_config_cmd (&remote_protocol_P
,
5762 "P", "set-register",
5763 set_remote_protocol_P_packet_cmd
,
5764 show_remote_protocol_P_packet_cmd
,
5765 &remote_set_cmdlist
, &remote_show_cmdlist
,
5768 add_packet_config_cmd (&remote_protocol_p
,
5769 "p", "fetch-register",
5770 set_remote_protocol_p_packet_cmd
,
5771 show_remote_protocol_p_packet_cmd
,
5772 &remote_set_cmdlist
, &remote_show_cmdlist
,
5775 add_packet_config_cmd (&remote_protocol_Z
[Z_PACKET_SOFTWARE_BP
],
5776 "Z0", "software-breakpoint",
5777 set_remote_protocol_Z_software_bp_packet_cmd
,
5778 show_remote_protocol_Z_software_bp_packet_cmd
,
5779 &remote_set_cmdlist
, &remote_show_cmdlist
,
5782 add_packet_config_cmd (&remote_protocol_Z
[Z_PACKET_HARDWARE_BP
],
5783 "Z1", "hardware-breakpoint",
5784 set_remote_protocol_Z_hardware_bp_packet_cmd
,
5785 show_remote_protocol_Z_hardware_bp_packet_cmd
,
5786 &remote_set_cmdlist
, &remote_show_cmdlist
,
5789 add_packet_config_cmd (&remote_protocol_Z
[Z_PACKET_WRITE_WP
],
5790 "Z2", "write-watchpoint",
5791 set_remote_protocol_Z_write_wp_packet_cmd
,
5792 show_remote_protocol_Z_write_wp_packet_cmd
,
5793 &remote_set_cmdlist
, &remote_show_cmdlist
,
5796 add_packet_config_cmd (&remote_protocol_Z
[Z_PACKET_READ_WP
],
5797 "Z3", "read-watchpoint",
5798 set_remote_protocol_Z_read_wp_packet_cmd
,
5799 show_remote_protocol_Z_read_wp_packet_cmd
,
5800 &remote_set_cmdlist
, &remote_show_cmdlist
,
5803 add_packet_config_cmd (&remote_protocol_Z
[Z_PACKET_ACCESS_WP
],
5804 "Z4", "access-watchpoint",
5805 set_remote_protocol_Z_access_wp_packet_cmd
,
5806 show_remote_protocol_Z_access_wp_packet_cmd
,
5807 &remote_set_cmdlist
, &remote_show_cmdlist
,
5810 add_packet_config_cmd (&remote_protocol_qPart_auxv
,
5811 "qPart_auxv", "read-aux-vector",
5812 set_remote_protocol_qPart_auxv_packet_cmd
,
5813 show_remote_protocol_qPart_auxv_packet_cmd
,
5814 &remote_set_cmdlist
, &remote_show_cmdlist
,
5817 add_packet_config_cmd (&remote_protocol_qGetTLSAddr
,
5818 "qGetTLSAddr", "get-thread-local-storage-address",
5819 set_remote_protocol_qGetTLSAddr_packet_cmd
,
5820 show_remote_protocol_qGetTLSAddr_packet_cmd
,
5821 &remote_set_cmdlist
, &remote_show_cmdlist
,
5824 /* Keep the old ``set remote Z-packet ...'' working. */
5825 add_setshow_auto_boolean_cmd ("Z-packet", class_obscure
,
5826 &remote_Z_packet_detect
, _("\
5827 Set use of remote protocol `Z' packets"), _("\
5828 Show use of remote protocol `Z' packets "), _("\
5829 When set, GDB will attempt to use the remote breakpoint and watchpoint\n\
5831 set_remote_protocol_Z_packet_cmd
,
5832 show_remote_protocol_Z_packet_cmd
, /* FIXME: i18n: Use of remote protocol `Z' packets is %s. */
5833 &remote_set_cmdlist
, &remote_show_cmdlist
);
5835 /* Eventually initialize fileio. See fileio.c */
5836 initialize_remote_fileio (remote_set_cmdlist
, remote_show_cmdlist
);