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"
50 #include "event-loop.h"
51 #include "event-top.h"
57 #include "gdbcore.h" /* for exec_bfd */
59 #include "remote-fileio.h"
61 /* Prototypes for local functions. */
62 static void cleanup_sigint_signal_handler (void *dummy
);
63 static void initialize_sigint_signal_handler (void);
64 static int getpkt_sane (char *buf
, long sizeof_buf
, int forever
);
66 static void handle_remote_sigint (int);
67 static void handle_remote_sigint_twice (int);
68 static void async_remote_interrupt (gdb_client_data
);
69 void async_remote_interrupt_twice (gdb_client_data
);
71 static void build_remote_gdbarch_data (void);
73 static void remote_files_info (struct target_ops
*ignore
);
75 static int remote_xfer_memory (CORE_ADDR memaddr
, char *myaddr
,
76 int len
, int should_write
,
77 struct mem_attrib
*attrib
,
78 struct target_ops
*target
);
80 static void remote_prepare_to_store (void);
82 static void remote_fetch_registers (int regno
);
84 static void remote_resume (ptid_t ptid
, int step
,
85 enum target_signal siggnal
);
86 static void remote_async_resume (ptid_t ptid
, int step
,
87 enum target_signal siggnal
);
88 static void remote_open (char *name
, int from_tty
);
89 static void remote_async_open (char *name
, int from_tty
);
91 static void extended_remote_open (char *name
, int from_tty
);
92 static void extended_remote_async_open (char *name
, int from_tty
);
94 static void remote_open_1 (char *, int, struct target_ops
*, int extended_p
,
97 static void remote_close (int quitting
);
99 static void remote_store_registers (int regno
);
101 static void remote_mourn (void);
102 static void remote_async_mourn (void);
104 static void extended_remote_restart (void);
106 static void extended_remote_mourn (void);
108 static void remote_mourn_1 (struct target_ops
*);
110 static void remote_send (char *buf
, long sizeof_buf
);
112 static int readchar (int timeout
);
114 static ptid_t
remote_wait (ptid_t ptid
,
115 struct target_waitstatus
*status
);
116 static ptid_t
remote_async_wait (ptid_t ptid
,
117 struct target_waitstatus
*status
);
119 static void remote_kill (void);
120 static void remote_async_kill (void);
122 static int tohex (int nib
);
124 static void remote_detach (char *args
, int from_tty
);
126 static void remote_interrupt (int signo
);
128 static void remote_interrupt_twice (int signo
);
130 static void interrupt_query (void);
132 static void set_thread (int, int);
134 static int remote_thread_alive (ptid_t
);
136 static void get_offsets (void);
138 static long read_frame (char *buf
, long sizeof_buf
);
140 static int remote_insert_breakpoint (CORE_ADDR
, bfd_byte
*);
142 static int remote_remove_breakpoint (CORE_ADDR
, bfd_byte
*);
144 static int hexnumlen (ULONGEST num
);
146 static void init_remote_ops (void);
148 static void init_extended_remote_ops (void);
150 static void remote_stop (void);
152 static int ishex (int ch
, int *val
);
154 static int stubhex (int ch
);
156 static int hexnumstr (char *, ULONGEST
);
158 static int hexnumnstr (char *, ULONGEST
, int);
160 static CORE_ADDR
remote_address_masked (CORE_ADDR
);
162 static void print_packet (char *);
164 static unsigned long crc32 (unsigned char *, int, unsigned int);
166 static void compare_sections_command (char *, int);
168 static void packet_command (char *, int);
170 static int stub_unpack_int (char *buff
, int fieldlength
);
172 static ptid_t
remote_current_thread (ptid_t oldptid
);
174 static void remote_find_new_threads (void);
176 static void record_currthread (int currthread
);
178 static int fromhex (int a
);
180 static int hex2bin (const char *hex
, char *bin
, int count
);
182 static int bin2hex (const char *bin
, char *hex
, int count
);
184 static int putpkt_binary (char *buf
, int cnt
);
186 static void check_binary_download (CORE_ADDR addr
);
188 struct packet_config
;
190 static void show_packet_config_cmd (struct packet_config
*config
);
192 static void update_packet_config (struct packet_config
*config
);
194 void _initialize_remote (void);
196 /* Description of the remote protocol. Strictly speaking, when the
197 target is open()ed, remote.c should create a per-target description
198 of the remote protocol using that target's architecture.
199 Unfortunately, the target stack doesn't include local state. For
200 the moment keep the information in the target's architecture
205 long offset
; /* Offset into G packet. */
206 long regnum
; /* GDB's internal register number. */
207 LONGEST pnum
; /* Remote protocol register number. */
208 int in_g_packet
; /* Always part of G packet. */
209 /* long size in bytes; == register_size (current_gdbarch, regnum);
211 /* char *name; == REGISTER_NAME (regnum); at present. */
216 /* Description of the remote protocol registers. */
217 long sizeof_g_packet
;
219 /* Description of the remote protocol registers indexed by REGNUM
220 (making an array of NUM_REGS + NUM_PSEUDO_REGS in size). */
221 struct packet_reg
*regs
;
223 /* This is the size (in chars) of the first response to the ``g''
224 packet. It is used as a heuristic when determining the maximum
225 size of memory-read and memory-write packets. A target will
226 typically only reserve a buffer large enough to hold the ``g''
227 packet. The size does not include packet overhead (headers and
229 long actual_register_packet_size
;
231 /* This is the maximum size (in chars) of a non read/write packet.
232 It is also used as a cap on the size of read/write packets. */
233 long remote_packet_size
;
237 /* Handle for retreving the remote protocol data from gdbarch. */
238 static struct gdbarch_data
*remote_gdbarch_data_handle
;
240 static struct remote_state
*
241 get_remote_state (void)
243 return gdbarch_data (current_gdbarch
, remote_gdbarch_data_handle
);
247 init_remote_state (struct gdbarch
*gdbarch
)
250 struct remote_state
*rs
= GDBARCH_OBSTACK_ZALLOC (gdbarch
, struct remote_state
);
252 rs
->sizeof_g_packet
= 0;
254 /* Assume a 1:1 regnum<->pnum table. */
255 rs
->regs
= GDBARCH_OBSTACK_CALLOC (gdbarch
, NUM_REGS
+ NUM_PSEUDO_REGS
,
257 for (regnum
= 0; regnum
< NUM_REGS
+ NUM_PSEUDO_REGS
; regnum
++)
259 struct packet_reg
*r
= &rs
->regs
[regnum
];
262 r
->offset
= DEPRECATED_REGISTER_BYTE (regnum
);
263 r
->in_g_packet
= (regnum
< NUM_REGS
);
264 /* ...name = REGISTER_NAME (regnum); */
266 /* Compute packet size by accumulating the size of all registers. */
267 if (regnum
< NUM_REGS
)
268 rs
->sizeof_g_packet
+= register_size (current_gdbarch
, regnum
);
271 /* Default maximum number of characters in a packet body. Many
272 remote stubs have a hardwired buffer size of 400 bytes
273 (c.f. BUFMAX in m68k-stub.c and i386-stub.c). BUFMAX-1 is used
274 as the maximum packet-size to ensure that the packet and an extra
275 NUL character can always fit in the buffer. This stops GDB
276 trashing stubs that try to squeeze an extra NUL into what is
277 already a full buffer (As of 1999-12-04 that was most stubs. */
278 rs
->remote_packet_size
= 400 - 1;
280 /* Should rs->sizeof_g_packet needs more space than the
281 default, adjust the size accordingly. Remember that each byte is
282 encoded as two characters. 32 is the overhead for the packet
283 header / footer. NOTE: cagney/1999-10-26: I suspect that 8
284 (``$NN:G...#NN'') is a better guess, the below has been padded a
286 if (rs
->sizeof_g_packet
> ((rs
->remote_packet_size
- 32) / 2))
287 rs
->remote_packet_size
= (rs
->sizeof_g_packet
* 2 + 32);
289 /* This one is filled in when a ``g'' packet is received. */
290 rs
->actual_register_packet_size
= 0;
295 static struct packet_reg
*
296 packet_reg_from_regnum (struct remote_state
*rs
, long regnum
)
298 if (regnum
< 0 && regnum
>= NUM_REGS
+ NUM_PSEUDO_REGS
)
302 struct packet_reg
*r
= &rs
->regs
[regnum
];
303 gdb_assert (r
->regnum
== regnum
);
308 static struct packet_reg
*
309 packet_reg_from_pnum (struct remote_state
*rs
, LONGEST pnum
)
312 for (i
= 0; i
< NUM_REGS
+ NUM_PSEUDO_REGS
; i
++)
314 struct packet_reg
*r
= &rs
->regs
[i
];
321 /* FIXME: graces/2002-08-08: These variables should eventually be
322 bound to an instance of the target object (as in gdbarch-tdep()),
323 when such a thing exists. */
325 /* This is set to the data address of the access causing the target
326 to stop for a watchpoint. */
327 static CORE_ADDR remote_watch_data_address
;
329 /* This is non-zero if taregt stopped for a watchpoint. */
330 static int remote_stopped_by_watchpoint_p
;
333 static struct target_ops remote_ops
;
335 static struct target_ops extended_remote_ops
;
337 /* Temporary target ops. Just like the remote_ops and
338 extended_remote_ops, but with asynchronous support. */
339 static struct target_ops remote_async_ops
;
341 static struct target_ops extended_async_remote_ops
;
343 /* FIXME: cagney/1999-09-23: Even though getpkt was called with
344 ``forever'' still use the normal timeout mechanism. This is
345 currently used by the ASYNC code to guarentee that target reads
346 during the initial connect always time-out. Once getpkt has been
347 modified to return a timeout indication and, in turn
348 remote_wait()/wait_for_inferior() have gained a timeout parameter
350 static int wait_forever_enabled_p
= 1;
353 /* This variable chooses whether to send a ^C or a break when the user
354 requests program interruption. Although ^C is usually what remote
355 systems expect, and that is the default here, sometimes a break is
356 preferable instead. */
358 static int remote_break
;
360 /* Descriptor for I/O to remote machine. Initialize it to NULL so that
361 remote_open knows that we don't have a file open when the program
363 static struct serial
*remote_desc
= NULL
;
365 /* This variable sets the number of bits in an address that are to be
366 sent in a memory ("M" or "m") packet. Normally, after stripping
367 leading zeros, the entire address would be sent. This variable
368 restricts the address to REMOTE_ADDRESS_SIZE bits. HISTORY: The
369 initial implementation of remote.c restricted the address sent in
370 memory packets to ``host::sizeof long'' bytes - (typically 32
371 bits). Consequently, for 64 bit targets, the upper 32 bits of an
372 address was never sent. Since fixing this bug may cause a break in
373 some remote targets this variable is principly provided to
374 facilitate backward compatibility. */
376 static int remote_address_size
;
378 /* Tempoary to track who currently owns the terminal. See
379 target_async_terminal_* for more details. */
381 static int remote_async_terminal_ours_p
;
384 /* User configurable variables for the number of characters in a
385 memory read/write packet. MIN ((rs->remote_packet_size),
386 rs->sizeof_g_packet) is the default. Some targets need smaller
387 values (fifo overruns, et.al.) and some users need larger values
388 (speed up transfers). The variables ``preferred_*'' (the user
389 request), ``current_*'' (what was actually set) and ``forced_*''
390 (Positive - a soft limit, negative - a hard limit). */
392 struct memory_packet_config
399 /* Compute the current size of a read/write packet. Since this makes
400 use of ``actual_register_packet_size'' the computation is dynamic. */
403 get_memory_packet_size (struct memory_packet_config
*config
)
405 struct remote_state
*rs
= get_remote_state ();
406 /* NOTE: The somewhat arbitrary 16k comes from the knowledge (folk
407 law?) that some hosts don't cope very well with large alloca()
408 calls. Eventually the alloca() code will be replaced by calls to
409 xmalloc() and make_cleanups() allowing this restriction to either
410 be lifted or removed. */
411 #ifndef MAX_REMOTE_PACKET_SIZE
412 #define MAX_REMOTE_PACKET_SIZE 16384
414 /* NOTE: 20 ensures we can write at least one byte. */
415 #ifndef MIN_REMOTE_PACKET_SIZE
416 #define MIN_REMOTE_PACKET_SIZE 20
421 if (config
->size
<= 0)
422 what_they_get
= MAX_REMOTE_PACKET_SIZE
;
424 what_they_get
= config
->size
;
428 what_they_get
= (rs
->remote_packet_size
);
429 /* Limit the packet to the size specified by the user. */
431 && what_they_get
> config
->size
)
432 what_they_get
= config
->size
;
433 /* Limit it to the size of the targets ``g'' response. */
434 if ((rs
->actual_register_packet_size
) > 0
435 && what_they_get
> (rs
->actual_register_packet_size
))
436 what_they_get
= (rs
->actual_register_packet_size
);
438 if (what_they_get
> MAX_REMOTE_PACKET_SIZE
)
439 what_they_get
= MAX_REMOTE_PACKET_SIZE
;
440 if (what_they_get
< MIN_REMOTE_PACKET_SIZE
)
441 what_they_get
= MIN_REMOTE_PACKET_SIZE
;
442 return what_they_get
;
445 /* Update the size of a read/write packet. If they user wants
446 something really big then do a sanity check. */
449 set_memory_packet_size (char *args
, struct memory_packet_config
*config
)
451 int fixed_p
= config
->fixed_p
;
452 long size
= config
->size
;
454 error (_("Argument required (integer, `fixed' or `limited')."));
455 else if (strcmp (args
, "hard") == 0
456 || strcmp (args
, "fixed") == 0)
458 else if (strcmp (args
, "soft") == 0
459 || strcmp (args
, "limit") == 0)
464 size
= strtoul (args
, &end
, 0);
466 error (_("Invalid %s (bad syntax)."), config
->name
);
468 /* Instead of explicitly capping the size of a packet to
469 MAX_REMOTE_PACKET_SIZE or dissallowing it, the user is
470 instead allowed to set the size to something arbitrarily
472 if (size
> MAX_REMOTE_PACKET_SIZE
)
473 error (_("Invalid %s (too large)."), config
->name
);
477 if (fixed_p
&& !config
->fixed_p
)
479 if (! query (_("The target may not be able to correctly handle a %s\n"
480 "of %ld bytes. Change the packet size? "),
482 error (_("Packet size not changed."));
484 /* Update the config. */
485 config
->fixed_p
= fixed_p
;
490 show_memory_packet_size (struct memory_packet_config
*config
)
492 printf_filtered (_("The %s is %ld. "), config
->name
, config
->size
);
494 printf_filtered (_("Packets are fixed at %ld bytes.\n"),
495 get_memory_packet_size (config
));
497 printf_filtered (_("Packets are limited to %ld bytes.\n"),
498 get_memory_packet_size (config
));
501 static struct memory_packet_config memory_write_packet_config
=
503 "memory-write-packet-size",
507 set_memory_write_packet_size (char *args
, int from_tty
)
509 set_memory_packet_size (args
, &memory_write_packet_config
);
513 show_memory_write_packet_size (char *args
, int from_tty
)
515 show_memory_packet_size (&memory_write_packet_config
);
519 get_memory_write_packet_size (void)
521 return get_memory_packet_size (&memory_write_packet_config
);
524 static struct memory_packet_config memory_read_packet_config
=
526 "memory-read-packet-size",
530 set_memory_read_packet_size (char *args
, int from_tty
)
532 set_memory_packet_size (args
, &memory_read_packet_config
);
536 show_memory_read_packet_size (char *args
, int from_tty
)
538 show_memory_packet_size (&memory_read_packet_config
);
542 get_memory_read_packet_size (void)
544 struct remote_state
*rs
= get_remote_state ();
545 long size
= get_memory_packet_size (&memory_read_packet_config
);
546 /* FIXME: cagney/1999-11-07: Functions like getpkt() need to get an
547 extra buffer size argument before the memory read size can be
548 increased beyond (rs->remote_packet_size). */
549 if (size
> (rs
->remote_packet_size
))
550 size
= (rs
->remote_packet_size
);
555 /* Generic configuration support for packets the stub optionally
556 supports. Allows the user to specify the use of the packet as well
557 as allowing GDB to auto-detect support in the remote stub. */
561 PACKET_SUPPORT_UNKNOWN
= 0,
570 enum auto_boolean detect
;
571 enum packet_support support
;
574 /* Analyze a packet's return value and update the packet config
585 update_packet_config (struct packet_config
*config
)
587 switch (config
->detect
)
589 case AUTO_BOOLEAN_TRUE
:
590 config
->support
= PACKET_ENABLE
;
592 case AUTO_BOOLEAN_FALSE
:
593 config
->support
= PACKET_DISABLE
;
595 case AUTO_BOOLEAN_AUTO
:
596 config
->support
= PACKET_SUPPORT_UNKNOWN
;
602 show_packet_config_cmd (struct packet_config
*config
)
604 char *support
= "internal-error";
605 switch (config
->support
)
611 support
= "disabled";
613 case PACKET_SUPPORT_UNKNOWN
:
617 switch (config
->detect
)
619 case AUTO_BOOLEAN_AUTO
:
620 printf_filtered (_("Support for remote protocol `%s' (%s) packet is auto-detected, currently %s.\n"),
621 config
->name
, config
->title
, support
);
623 case AUTO_BOOLEAN_TRUE
:
624 case AUTO_BOOLEAN_FALSE
:
625 printf_filtered (_("Support for remote protocol `%s' (%s) packet is currently %s.\n"),
626 config
->name
, config
->title
, support
);
632 add_packet_config_cmd (struct packet_config
*config
,
635 cmd_sfunc_ftype
*set_func
,
636 show_value_ftype
*show_func
,
637 struct cmd_list_element
**set_remote_list
,
638 struct cmd_list_element
**show_remote_list
,
646 config
->title
= title
;
647 config
->detect
= AUTO_BOOLEAN_AUTO
;
648 config
->support
= PACKET_SUPPORT_UNKNOWN
;
649 set_doc
= xstrprintf ("Set use of remote protocol `%s' (%s) packet",
651 show_doc
= xstrprintf ("Show current use of remote protocol `%s' (%s) packet",
653 /* set/show TITLE-packet {auto,on,off} */
654 cmd_name
= xstrprintf ("%s-packet", title
);
655 add_setshow_auto_boolean_cmd (cmd_name
, class_obscure
,
656 &config
->detect
, set_doc
, show_doc
, NULL
, /* help_doc */
658 set_remote_list
, show_remote_list
);
659 /* set/show remote NAME-packet {auto,on,off} -- legacy. */
663 legacy_name
= xstrprintf ("%s-packet", name
);
664 add_alias_cmd (legacy_name
, cmd_name
, class_obscure
, 0,
666 add_alias_cmd (legacy_name
, cmd_name
, class_obscure
, 0,
671 static enum packet_result
672 packet_ok (const char *buf
, struct packet_config
*config
)
676 /* The stub recognized the packet request. Check that the
677 operation succeeded. */
678 switch (config
->support
)
680 case PACKET_SUPPORT_UNKNOWN
:
682 fprintf_unfiltered (gdb_stdlog
,
683 "Packet %s (%s) is supported\n",
684 config
->name
, config
->title
);
685 config
->support
= PACKET_ENABLE
;
688 internal_error (__FILE__
, __LINE__
,
689 _("packet_ok: attempt to use a disabled packet"));
694 if (buf
[0] == 'O' && buf
[1] == 'K' && buf
[2] == '\0')
695 /* "OK" - definitly OK. */
698 && isxdigit (buf
[1]) && isxdigit (buf
[2])
700 /* "Enn" - definitly an error. */
702 /* The packet may or may not be OK. Just assume it is. */
707 /* The stub does not support the packet. */
708 switch (config
->support
)
711 if (config
->detect
== AUTO_BOOLEAN_AUTO
)
712 /* If the stub previously indicated that the packet was
713 supported then there is a protocol error.. */
714 error (_("Protocol error: %s (%s) conflicting enabled responses."),
715 config
->name
, config
->title
);
717 /* The user set it wrong. */
718 error (_("Enabled packet %s (%s) not recognized by stub"),
719 config
->name
, config
->title
);
721 case PACKET_SUPPORT_UNKNOWN
:
723 fprintf_unfiltered (gdb_stdlog
,
724 "Packet %s (%s) is NOT supported\n",
725 config
->name
, config
->title
);
726 config
->support
= PACKET_DISABLE
;
731 return PACKET_UNKNOWN
;
735 /* Should we try the 'vCont' (descriptive resume) request? */
736 static struct packet_config remote_protocol_vcont
;
739 set_remote_protocol_vcont_packet_cmd (char *args
, int from_tty
,
740 struct cmd_list_element
*c
)
742 update_packet_config (&remote_protocol_vcont
);
746 show_remote_protocol_vcont_packet_cmd (struct ui_file
*file
, int from_tty
,
747 struct cmd_list_element
*c
,
750 show_packet_config_cmd (&remote_protocol_vcont
);
753 /* Should we try the 'qSymbol' (target symbol lookup service) request? */
754 static struct packet_config remote_protocol_qSymbol
;
757 set_remote_protocol_qSymbol_packet_cmd (char *args
, int from_tty
,
758 struct cmd_list_element
*c
)
760 update_packet_config (&remote_protocol_qSymbol
);
764 show_remote_protocol_qSymbol_packet_cmd (struct ui_file
*file
, int from_tty
,
765 struct cmd_list_element
*c
,
768 show_packet_config_cmd (&remote_protocol_qSymbol
);
771 /* Should we try the 'P' (set register) request? */
773 static struct packet_config remote_protocol_P
;
776 set_remote_protocol_P_packet_cmd (char *args
, int from_tty
,
777 struct cmd_list_element
*c
)
779 update_packet_config (&remote_protocol_P
);
783 show_remote_protocol_P_packet_cmd (struct ui_file
*file
, int from_tty
,
784 struct cmd_list_element
*c
,
787 show_packet_config_cmd (&remote_protocol_P
);
790 /* Should we try one of the 'Z' requests? */
794 Z_PACKET_SOFTWARE_BP
,
795 Z_PACKET_HARDWARE_BP
,
802 static struct packet_config remote_protocol_Z
[NR_Z_PACKET_TYPES
];
804 /* FIXME: Instead of having all these boiler plate functions, the
805 command callback should include a context argument. */
808 set_remote_protocol_Z_software_bp_packet_cmd (char *args
, int from_tty
,
809 struct cmd_list_element
*c
)
811 update_packet_config (&remote_protocol_Z
[Z_PACKET_SOFTWARE_BP
]);
815 show_remote_protocol_Z_software_bp_packet_cmd (struct ui_file
*file
, int from_tty
,
816 struct cmd_list_element
*c
,
819 show_packet_config_cmd (&remote_protocol_Z
[Z_PACKET_SOFTWARE_BP
]);
823 set_remote_protocol_Z_hardware_bp_packet_cmd (char *args
, int from_tty
,
824 struct cmd_list_element
*c
)
826 update_packet_config (&remote_protocol_Z
[Z_PACKET_HARDWARE_BP
]);
830 show_remote_protocol_Z_hardware_bp_packet_cmd (struct ui_file
*file
, int from_tty
,
831 struct cmd_list_element
*c
,
834 show_packet_config_cmd (&remote_protocol_Z
[Z_PACKET_HARDWARE_BP
]);
838 set_remote_protocol_Z_write_wp_packet_cmd (char *args
, int from_tty
,
839 struct cmd_list_element
*c
)
841 update_packet_config (&remote_protocol_Z
[Z_PACKET_WRITE_WP
]);
845 show_remote_protocol_Z_write_wp_packet_cmd (struct ui_file
*file
, int from_tty
,
846 struct cmd_list_element
*c
,
849 show_packet_config_cmd (&remote_protocol_Z
[Z_PACKET_WRITE_WP
]);
853 set_remote_protocol_Z_read_wp_packet_cmd (char *args
, int from_tty
,
854 struct cmd_list_element
*c
)
856 update_packet_config (&remote_protocol_Z
[Z_PACKET_READ_WP
]);
860 show_remote_protocol_Z_read_wp_packet_cmd (struct ui_file
*file
, int from_tty
,
861 struct cmd_list_element
*c
,
864 show_packet_config_cmd (&remote_protocol_Z
[Z_PACKET_READ_WP
]);
868 set_remote_protocol_Z_access_wp_packet_cmd (char *args
, int from_tty
,
869 struct cmd_list_element
*c
)
871 update_packet_config (&remote_protocol_Z
[Z_PACKET_ACCESS_WP
]);
875 show_remote_protocol_Z_access_wp_packet_cmd (struct ui_file
*file
, int from_tty
,
876 struct cmd_list_element
*c
,
879 show_packet_config_cmd (&remote_protocol_Z
[Z_PACKET_ACCESS_WP
]);
882 /* For compatibility with older distributions. Provide a ``set remote
883 Z-packet ...'' command that updates all the Z packet types. */
885 static enum auto_boolean remote_Z_packet_detect
;
888 set_remote_protocol_Z_packet_cmd (char *args
, int from_tty
,
889 struct cmd_list_element
*c
)
892 for (i
= 0; i
< NR_Z_PACKET_TYPES
; i
++)
894 remote_protocol_Z
[i
].detect
= remote_Z_packet_detect
;
895 update_packet_config (&remote_protocol_Z
[i
]);
900 show_remote_protocol_Z_packet_cmd (struct ui_file
*file
, int from_tty
,
901 struct cmd_list_element
*c
,
905 for (i
= 0; i
< NR_Z_PACKET_TYPES
; i
++)
907 show_packet_config_cmd (&remote_protocol_Z
[i
]);
911 /* Should we try the 'X' (remote binary download) packet?
913 This variable (available to the user via "set remote X-packet")
914 dictates whether downloads are sent in binary (via the 'X' packet).
915 We assume that the stub can, and attempt to do it. This will be
916 cleared if the stub does not understand it. This switch is still
917 needed, though in cases when the packet is supported in the stub,
918 but the connection does not allow it (i.e., 7-bit serial connection
921 static struct packet_config remote_protocol_binary_download
;
923 /* Should we try the 'ThreadInfo' query packet?
925 This variable (NOT available to the user: auto-detect only!)
926 determines whether GDB will use the new, simpler "ThreadInfo"
927 query or the older, more complex syntax for thread queries.
928 This is an auto-detect variable (set to true at each connect,
929 and set to false when the target fails to recognize it). */
931 static int use_threadinfo_query
;
932 static int use_threadextra_query
;
935 set_remote_protocol_binary_download_cmd (char *args
,
937 struct cmd_list_element
*c
)
939 update_packet_config (&remote_protocol_binary_download
);
943 show_remote_protocol_binary_download_cmd (struct ui_file
*file
, int from_tty
,
944 struct cmd_list_element
*c
,
947 show_packet_config_cmd (&remote_protocol_binary_download
);
950 /* Should we try the 'qPart:auxv' (target auxiliary vector read) request? */
951 static struct packet_config remote_protocol_qPart_auxv
;
954 set_remote_protocol_qPart_auxv_packet_cmd (char *args
, int from_tty
,
955 struct cmd_list_element
*c
)
957 update_packet_config (&remote_protocol_qPart_auxv
);
961 show_remote_protocol_qPart_auxv_packet_cmd (struct ui_file
*file
, int from_tty
,
962 struct cmd_list_element
*c
,
965 show_packet_config_cmd (&remote_protocol_qPart_auxv
);
968 /* Should we try the 'qGetTLSAddr' (Get Thread Local Storage Address) request? */
969 static struct packet_config remote_protocol_qGetTLSAddr
;
972 set_remote_protocol_qGetTLSAddr_packet_cmd (char *args
, int from_tty
,
973 struct cmd_list_element
*c
)
975 update_packet_config (&remote_protocol_qGetTLSAddr
);
979 show_remote_protocol_qGetTLSAddr_packet_cmd (struct ui_file
*file
, int from_tty
,
980 struct cmd_list_element
*c
,
983 show_packet_config_cmd (&remote_protocol_qGetTLSAddr
);
986 static struct packet_config remote_protocol_p
;
989 set_remote_protocol_p_packet_cmd (char *args
, int from_tty
,
990 struct cmd_list_element
*c
)
992 update_packet_config (&remote_protocol_p
);
996 show_remote_protocol_p_packet_cmd (struct ui_file
*file
, int from_tty
,
997 struct cmd_list_element
*c
,
1000 show_packet_config_cmd (&remote_protocol_p
);
1005 /* Tokens for use by the asynchronous signal handlers for SIGINT. */
1006 static void *sigint_remote_twice_token
;
1007 static void *sigint_remote_token
;
1009 /* These are pointers to hook functions that may be set in order to
1010 modify resume/wait behavior for a particular architecture. */
1012 void (*deprecated_target_resume_hook
) (void);
1013 void (*deprecated_target_wait_loop_hook
) (void);
1017 /* These are the threads which we last sent to the remote system.
1018 -1 for all or -2 for not sent yet. */
1019 static int general_thread
;
1020 static int continue_thread
;
1022 /* Call this function as a result of
1023 1) A halt indication (T packet) containing a thread id
1024 2) A direct query of currthread
1025 3) Successful execution of set thread
1029 record_currthread (int currthread
)
1031 general_thread
= currthread
;
1033 /* If this is a new thread, add it to GDB's thread list.
1034 If we leave it up to WFI to do this, bad things will happen. */
1035 if (!in_thread_list (pid_to_ptid (currthread
)))
1037 add_thread (pid_to_ptid (currthread
));
1038 ui_out_text (uiout
, "[New ");
1039 ui_out_text (uiout
, target_pid_to_str (pid_to_ptid (currthread
)));
1040 ui_out_text (uiout
, "]\n");
1044 #define MAGIC_NULL_PID 42000
1047 set_thread (int th
, int gen
)
1049 struct remote_state
*rs
= get_remote_state ();
1050 char *buf
= alloca (rs
->remote_packet_size
);
1051 int state
= gen
? general_thread
: continue_thread
;
1057 buf
[1] = gen
? 'g' : 'c';
1058 if (th
== MAGIC_NULL_PID
)
1064 sprintf (&buf
[2], "-%x", -th
);
1066 sprintf (&buf
[2], "%x", th
);
1068 getpkt (buf
, (rs
->remote_packet_size
), 0);
1070 general_thread
= th
;
1072 continue_thread
= th
;
1075 /* Return nonzero if the thread TH is still alive on the remote system. */
1078 remote_thread_alive (ptid_t ptid
)
1080 int tid
= PIDGET (ptid
);
1084 sprintf (buf
, "T-%08x", -tid
);
1086 sprintf (buf
, "T%08x", tid
);
1088 getpkt (buf
, sizeof (buf
), 0);
1089 return (buf
[0] == 'O' && buf
[1] == 'K');
1092 /* About these extended threadlist and threadinfo packets. They are
1093 variable length packets but, the fields within them are often fixed
1094 length. They are redundent enough to send over UDP as is the
1095 remote protocol in general. There is a matching unit test module
1098 #define OPAQUETHREADBYTES 8
1100 /* a 64 bit opaque identifier */
1101 typedef unsigned char threadref
[OPAQUETHREADBYTES
];
1103 /* WARNING: This threadref data structure comes from the remote O.S.,
1104 libstub protocol encoding, and remote.c. it is not particularly
1107 /* Right now, the internal structure is int. We want it to be bigger.
1111 typedef int gdb_threadref
; /* Internal GDB thread reference. */
1113 /* gdb_ext_thread_info is an internal GDB data structure which is
1114 equivalint to the reply of the remote threadinfo packet. */
1116 struct gdb_ext_thread_info
1118 threadref threadid
; /* External form of thread reference. */
1119 int active
; /* Has state interesting to GDB?
1121 char display
[256]; /* Brief state display, name,
1122 blocked/syspended. */
1123 char shortname
[32]; /* To be used to name threads. */
1124 char more_display
[256]; /* Long info, statistics, queue depth,
1128 /* The volume of remote transfers can be limited by submitting
1129 a mask containing bits specifying the desired information.
1130 Use a union of these values as the 'selection' parameter to
1131 get_thread_info. FIXME: Make these TAG names more thread specific.
1134 #define TAG_THREADID 1
1135 #define TAG_EXISTS 2
1136 #define TAG_DISPLAY 4
1137 #define TAG_THREADNAME 8
1138 #define TAG_MOREDISPLAY 16
1140 #define BUF_THREAD_ID_SIZE (OPAQUETHREADBYTES * 2)
1142 char *unpack_varlen_hex (char *buff
, ULONGEST
*result
);
1144 static char *unpack_nibble (char *buf
, int *val
);
1146 static char *pack_nibble (char *buf
, int nibble
);
1148 static char *pack_hex_byte (char *pkt
, int /* unsigned char */ byte
);
1150 static char *unpack_byte (char *buf
, int *value
);
1152 static char *pack_int (char *buf
, int value
);
1154 static char *unpack_int (char *buf
, int *value
);
1156 static char *unpack_string (char *src
, char *dest
, int length
);
1158 static char *pack_threadid (char *pkt
, threadref
*id
);
1160 static char *unpack_threadid (char *inbuf
, threadref
*id
);
1162 void int_to_threadref (threadref
*id
, int value
);
1164 static int threadref_to_int (threadref
*ref
);
1166 static void copy_threadref (threadref
*dest
, threadref
*src
);
1168 static int threadmatch (threadref
*dest
, threadref
*src
);
1170 static char *pack_threadinfo_request (char *pkt
, int mode
,
1173 static int remote_unpack_thread_info_response (char *pkt
,
1174 threadref
*expectedref
,
1175 struct gdb_ext_thread_info
1179 static int remote_get_threadinfo (threadref
*threadid
,
1180 int fieldset
, /*TAG mask */
1181 struct gdb_ext_thread_info
*info
);
1183 static char *pack_threadlist_request (char *pkt
, int startflag
,
1185 threadref
*nextthread
);
1187 static int parse_threadlist_response (char *pkt
,
1189 threadref
*original_echo
,
1190 threadref
*resultlist
,
1193 static int remote_get_threadlist (int startflag
,
1194 threadref
*nextthread
,
1198 threadref
*threadlist
);
1200 typedef int (*rmt_thread_action
) (threadref
*ref
, void *context
);
1202 static int remote_threadlist_iterator (rmt_thread_action stepfunction
,
1203 void *context
, int looplimit
);
1205 static int remote_newthread_step (threadref
*ref
, void *context
);
1207 /* Encode 64 bits in 16 chars of hex. */
1209 static const char hexchars
[] = "0123456789abcdef";
1212 ishex (int ch
, int *val
)
1214 if ((ch
>= 'a') && (ch
<= 'f'))
1216 *val
= ch
- 'a' + 10;
1219 if ((ch
>= 'A') && (ch
<= 'F'))
1221 *val
= ch
- 'A' + 10;
1224 if ((ch
>= '0') && (ch
<= '9'))
1235 if (ch
>= 'a' && ch
<= 'f')
1236 return ch
- 'a' + 10;
1237 if (ch
>= '0' && ch
<= '9')
1239 if (ch
>= 'A' && ch
<= 'F')
1240 return ch
- 'A' + 10;
1245 stub_unpack_int (char *buff
, int fieldlength
)
1252 nibble
= stubhex (*buff
++);
1256 retval
= retval
<< 4;
1262 unpack_varlen_hex (char *buff
, /* packet to parse */
1268 while (ishex (*buff
, &nibble
))
1271 retval
= retval
<< 4;
1272 retval
|= nibble
& 0x0f;
1279 unpack_nibble (char *buf
, int *val
)
1281 ishex (*buf
++, val
);
1286 pack_nibble (char *buf
, int nibble
)
1288 *buf
++ = hexchars
[(nibble
& 0x0f)];
1293 pack_hex_byte (char *pkt
, int byte
)
1295 *pkt
++ = hexchars
[(byte
>> 4) & 0xf];
1296 *pkt
++ = hexchars
[(byte
& 0xf)];
1301 unpack_byte (char *buf
, int *value
)
1303 *value
= stub_unpack_int (buf
, 2);
1308 pack_int (char *buf
, int value
)
1310 buf
= pack_hex_byte (buf
, (value
>> 24) & 0xff);
1311 buf
= pack_hex_byte (buf
, (value
>> 16) & 0xff);
1312 buf
= pack_hex_byte (buf
, (value
>> 8) & 0x0ff);
1313 buf
= pack_hex_byte (buf
, (value
& 0xff));
1318 unpack_int (char *buf
, int *value
)
1320 *value
= stub_unpack_int (buf
, 8);
1324 #if 0 /* Currently unused, uncomment when needed. */
1325 static char *pack_string (char *pkt
, char *string
);
1328 pack_string (char *pkt
, char *string
)
1333 len
= strlen (string
);
1335 len
= 200; /* Bigger than most GDB packets, junk??? */
1336 pkt
= pack_hex_byte (pkt
, len
);
1340 if ((ch
== '\0') || (ch
== '#'))
1341 ch
= '*'; /* Protect encapsulation. */
1346 #endif /* 0 (unused) */
1349 unpack_string (char *src
, char *dest
, int length
)
1358 pack_threadid (char *pkt
, threadref
*id
)
1361 unsigned char *altid
;
1363 altid
= (unsigned char *) id
;
1364 limit
= pkt
+ BUF_THREAD_ID_SIZE
;
1366 pkt
= pack_hex_byte (pkt
, *altid
++);
1372 unpack_threadid (char *inbuf
, threadref
*id
)
1375 char *limit
= inbuf
+ BUF_THREAD_ID_SIZE
;
1378 altref
= (char *) id
;
1380 while (inbuf
< limit
)
1382 x
= stubhex (*inbuf
++);
1383 y
= stubhex (*inbuf
++);
1384 *altref
++ = (x
<< 4) | y
;
1389 /* Externally, threadrefs are 64 bits but internally, they are still
1390 ints. This is due to a mismatch of specifications. We would like
1391 to use 64bit thread references internally. This is an adapter
1395 int_to_threadref (threadref
*id
, int value
)
1397 unsigned char *scan
;
1399 scan
= (unsigned char *) id
;
1405 *scan
++ = (value
>> 24) & 0xff;
1406 *scan
++ = (value
>> 16) & 0xff;
1407 *scan
++ = (value
>> 8) & 0xff;
1408 *scan
++ = (value
& 0xff);
1412 threadref_to_int (threadref
*ref
)
1415 unsigned char *scan
;
1417 scan
= (char *) ref
;
1421 value
= (value
<< 8) | ((*scan
++) & 0xff);
1426 copy_threadref (threadref
*dest
, threadref
*src
)
1429 unsigned char *csrc
, *cdest
;
1431 csrc
= (unsigned char *) src
;
1432 cdest
= (unsigned char *) dest
;
1439 threadmatch (threadref
*dest
, threadref
*src
)
1441 /* Things are broken right now, so just assume we got a match. */
1443 unsigned char *srcp
, *destp
;
1445 srcp
= (char *) src
;
1446 destp
= (char *) dest
;
1450 result
&= (*srcp
++ == *destp
++) ? 1 : 0;
1457 threadid:1, # always request threadid
1464 /* Encoding: 'Q':8,'P':8,mask:32,threadid:64 */
1467 pack_threadinfo_request (char *pkt
, int mode
, threadref
*id
)
1469 *pkt
++ = 'q'; /* Info Query */
1470 *pkt
++ = 'P'; /* process or thread info */
1471 pkt
= pack_int (pkt
, mode
); /* mode */
1472 pkt
= pack_threadid (pkt
, id
); /* threadid */
1473 *pkt
= '\0'; /* terminate */
1477 /* These values tag the fields in a thread info response packet. */
1478 /* Tagging the fields allows us to request specific fields and to
1479 add more fields as time goes by. */
1481 #define TAG_THREADID 1 /* Echo the thread identifier. */
1482 #define TAG_EXISTS 2 /* Is this process defined enough to
1483 fetch registers and its stack? */
1484 #define TAG_DISPLAY 4 /* A short thing maybe to put on a window */
1485 #define TAG_THREADNAME 8 /* string, maps 1-to-1 with a thread is. */
1486 #define TAG_MOREDISPLAY 16 /* Whatever the kernel wants to say about
1490 remote_unpack_thread_info_response (char *pkt
, threadref
*expectedref
,
1491 struct gdb_ext_thread_info
*info
)
1493 struct remote_state
*rs
= get_remote_state ();
1497 char *limit
= pkt
+ (rs
->remote_packet_size
); /* plausable parsing limit */
1500 /* info->threadid = 0; FIXME: implement zero_threadref. */
1502 info
->display
[0] = '\0';
1503 info
->shortname
[0] = '\0';
1504 info
->more_display
[0] = '\0';
1506 /* Assume the characters indicating the packet type have been
1508 pkt
= unpack_int (pkt
, &mask
); /* arg mask */
1509 pkt
= unpack_threadid (pkt
, &ref
);
1512 warning (_("Incomplete response to threadinfo request."));
1513 if (!threadmatch (&ref
, expectedref
))
1514 { /* This is an answer to a different request. */
1515 warning (_("ERROR RMT Thread info mismatch."));
1518 copy_threadref (&info
->threadid
, &ref
);
1520 /* Loop on tagged fields , try to bail if somthing goes wrong. */
1522 /* Packets are terminated with nulls. */
1523 while ((pkt
< limit
) && mask
&& *pkt
)
1525 pkt
= unpack_int (pkt
, &tag
); /* tag */
1526 pkt
= unpack_byte (pkt
, &length
); /* length */
1527 if (!(tag
& mask
)) /* Tags out of synch with mask. */
1529 warning (_("ERROR RMT: threadinfo tag mismatch."));
1533 if (tag
== TAG_THREADID
)
1537 warning (_("ERROR RMT: length of threadid is not 16."));
1541 pkt
= unpack_threadid (pkt
, &ref
);
1542 mask
= mask
& ~TAG_THREADID
;
1545 if (tag
== TAG_EXISTS
)
1547 info
->active
= stub_unpack_int (pkt
, length
);
1549 mask
= mask
& ~(TAG_EXISTS
);
1552 warning (_("ERROR RMT: 'exists' length too long."));
1558 if (tag
== TAG_THREADNAME
)
1560 pkt
= unpack_string (pkt
, &info
->shortname
[0], length
);
1561 mask
= mask
& ~TAG_THREADNAME
;
1564 if (tag
== TAG_DISPLAY
)
1566 pkt
= unpack_string (pkt
, &info
->display
[0], length
);
1567 mask
= mask
& ~TAG_DISPLAY
;
1570 if (tag
== TAG_MOREDISPLAY
)
1572 pkt
= unpack_string (pkt
, &info
->more_display
[0], length
);
1573 mask
= mask
& ~TAG_MOREDISPLAY
;
1576 warning (_("ERROR RMT: unknown thread info tag."));
1577 break; /* Not a tag we know about. */
1583 remote_get_threadinfo (threadref
*threadid
, int fieldset
, /* TAG mask */
1584 struct gdb_ext_thread_info
*info
)
1586 struct remote_state
*rs
= get_remote_state ();
1588 char *threadinfo_pkt
= alloca (rs
->remote_packet_size
);
1590 pack_threadinfo_request (threadinfo_pkt
, fieldset
, threadid
);
1591 putpkt (threadinfo_pkt
);
1592 getpkt (threadinfo_pkt
, (rs
->remote_packet_size
), 0);
1593 result
= remote_unpack_thread_info_response (threadinfo_pkt
+ 2,
1598 /* Format: i'Q':8,i"L":8,initflag:8,batchsize:16,lastthreadid:32 */
1601 pack_threadlist_request (char *pkt
, int startflag
, int threadcount
,
1602 threadref
*nextthread
)
1604 *pkt
++ = 'q'; /* info query packet */
1605 *pkt
++ = 'L'; /* Process LIST or threadLIST request */
1606 pkt
= pack_nibble (pkt
, startflag
); /* initflag 1 bytes */
1607 pkt
= pack_hex_byte (pkt
, threadcount
); /* threadcount 2 bytes */
1608 pkt
= pack_threadid (pkt
, nextthread
); /* 64 bit thread identifier */
1613 /* Encoding: 'q':8,'M':8,count:16,done:8,argthreadid:64,(threadid:64)* */
1616 parse_threadlist_response (char *pkt
, int result_limit
,
1617 threadref
*original_echo
, threadref
*resultlist
,
1620 struct remote_state
*rs
= get_remote_state ();
1622 int count
, resultcount
, done
;
1625 /* Assume the 'q' and 'M chars have been stripped. */
1626 limit
= pkt
+ ((rs
->remote_packet_size
) - BUF_THREAD_ID_SIZE
);
1627 /* done parse past here */
1628 pkt
= unpack_byte (pkt
, &count
); /* count field */
1629 pkt
= unpack_nibble (pkt
, &done
);
1630 /* The first threadid is the argument threadid. */
1631 pkt
= unpack_threadid (pkt
, original_echo
); /* should match query packet */
1632 while ((count
-- > 0) && (pkt
< limit
))
1634 pkt
= unpack_threadid (pkt
, resultlist
++);
1635 if (resultcount
++ >= result_limit
)
1644 remote_get_threadlist (int startflag
, threadref
*nextthread
, int result_limit
,
1645 int *done
, int *result_count
, threadref
*threadlist
)
1647 struct remote_state
*rs
= get_remote_state ();
1648 static threadref echo_nextthread
;
1649 char *threadlist_packet
= alloca (rs
->remote_packet_size
);
1650 char *t_response
= alloca (rs
->remote_packet_size
);
1653 /* Trancate result limit to be smaller than the packet size. */
1654 if ((((result_limit
+ 1) * BUF_THREAD_ID_SIZE
) + 10) >= (rs
->remote_packet_size
))
1655 result_limit
= ((rs
->remote_packet_size
) / BUF_THREAD_ID_SIZE
) - 2;
1657 pack_threadlist_request (threadlist_packet
,
1658 startflag
, result_limit
, nextthread
);
1659 putpkt (threadlist_packet
);
1660 getpkt (t_response
, (rs
->remote_packet_size
), 0);
1663 parse_threadlist_response (t_response
+ 2, result_limit
, &echo_nextthread
,
1666 if (!threadmatch (&echo_nextthread
, nextthread
))
1668 /* FIXME: This is a good reason to drop the packet. */
1669 /* Possably, there is a duplicate response. */
1671 retransmit immediatly - race conditions
1672 retransmit after timeout - yes
1674 wait for packet, then exit
1676 warning (_("HMM: threadlist did not echo arg thread, dropping it."));
1677 return 0; /* I choose simply exiting. */
1679 if (*result_count
<= 0)
1683 warning (_("RMT ERROR : failed to get remote thread list."));
1686 return result
; /* break; */
1688 if (*result_count
> result_limit
)
1691 warning (_("RMT ERROR: threadlist response longer than requested."));
1697 /* This is the interface between remote and threads, remotes upper
1700 /* remote_find_new_threads retrieves the thread list and for each
1701 thread in the list, looks up the thread in GDB's internal list,
1702 ading the thread if it does not already exist. This involves
1703 getting partial thread lists from the remote target so, polling the
1704 quit_flag is required. */
1707 /* About this many threadisds fit in a packet. */
1709 #define MAXTHREADLISTRESULTS 32
1712 remote_threadlist_iterator (rmt_thread_action stepfunction
, void *context
,
1715 int done
, i
, result_count
;
1719 static threadref nextthread
;
1720 static threadref resultthreadlist
[MAXTHREADLISTRESULTS
];
1725 if (loopcount
++ > looplimit
)
1728 warning (_("Remote fetch threadlist -infinite loop-."));
1731 if (!remote_get_threadlist (startflag
, &nextthread
, MAXTHREADLISTRESULTS
,
1732 &done
, &result_count
, resultthreadlist
))
1737 /* Clear for later iterations. */
1739 /* Setup to resume next batch of thread references, set nextthread. */
1740 if (result_count
>= 1)
1741 copy_threadref (&nextthread
, &resultthreadlist
[result_count
- 1]);
1743 while (result_count
--)
1744 if (!(result
= (*stepfunction
) (&resultthreadlist
[i
++], context
)))
1751 remote_newthread_step (threadref
*ref
, void *context
)
1755 ptid
= pid_to_ptid (threadref_to_int (ref
));
1757 if (!in_thread_list (ptid
))
1759 return 1; /* continue iterator */
1762 #define CRAZY_MAX_THREADS 1000
1765 remote_current_thread (ptid_t oldpid
)
1767 struct remote_state
*rs
= get_remote_state ();
1768 char *buf
= alloca (rs
->remote_packet_size
);
1771 getpkt (buf
, (rs
->remote_packet_size
), 0);
1772 if (buf
[0] == 'Q' && buf
[1] == 'C')
1773 /* Use strtoul here, so we'll correctly parse values whose highest
1774 bit is set. The protocol carries them as a simple series of
1775 hex digits; in the absence of a sign, strtol will see such
1776 values as positive numbers out of range for signed 'long', and
1777 return LONG_MAX to indicate an overflow. */
1778 return pid_to_ptid (strtoul (&buf
[2], NULL
, 16));
1783 /* Find new threads for info threads command.
1784 * Original version, using John Metzler's thread protocol.
1788 remote_find_new_threads (void)
1790 remote_threadlist_iterator (remote_newthread_step
, 0,
1792 if (PIDGET (inferior_ptid
) == MAGIC_NULL_PID
) /* ack ack ack */
1793 inferior_ptid
= remote_current_thread (inferior_ptid
);
1797 * Find all threads for info threads command.
1798 * Uses new thread protocol contributed by Cisco.
1799 * Falls back and attempts to use the older method (above)
1800 * if the target doesn't respond to the new method.
1804 remote_threads_info (void)
1806 struct remote_state
*rs
= get_remote_state ();
1807 char *buf
= alloca (rs
->remote_packet_size
);
1811 if (remote_desc
== 0) /* paranoia */
1812 error (_("Command can only be used when connected to the remote target."));
1814 if (use_threadinfo_query
)
1816 putpkt ("qfThreadInfo");
1818 getpkt (bufp
, (rs
->remote_packet_size
), 0);
1819 if (bufp
[0] != '\0') /* q packet recognized */
1821 while (*bufp
++ == 'm') /* reply contains one or more TID */
1825 /* Use strtoul here, so we'll correctly parse values
1826 whose highest bit is set. The protocol carries
1827 them as a simple series of hex digits; in the
1828 absence of a sign, strtol will see such values as
1829 positive numbers out of range for signed 'long',
1830 and return LONG_MAX to indicate an overflow. */
1831 tid
= strtoul (bufp
, &bufp
, 16);
1832 if (tid
!= 0 && !in_thread_list (pid_to_ptid (tid
)))
1833 add_thread (pid_to_ptid (tid
));
1835 while (*bufp
++ == ','); /* comma-separated list */
1836 putpkt ("qsThreadInfo");
1838 getpkt (bufp
, (rs
->remote_packet_size
), 0);
1844 /* Else fall back to old method based on jmetzler protocol. */
1845 use_threadinfo_query
= 0;
1846 remote_find_new_threads ();
1851 * Collect a descriptive string about the given thread.
1852 * The target may say anything it wants to about the thread
1853 * (typically info about its blocked / runnable state, name, etc.).
1854 * This string will appear in the info threads display.
1856 * Optional: targets are not required to implement this function.
1860 remote_threads_extra_info (struct thread_info
*tp
)
1862 struct remote_state
*rs
= get_remote_state ();
1866 struct gdb_ext_thread_info threadinfo
;
1867 static char display_buf
[100]; /* arbitrary... */
1868 char *bufp
= alloca (rs
->remote_packet_size
);
1869 int n
= 0; /* position in display_buf */
1871 if (remote_desc
== 0) /* paranoia */
1872 internal_error (__FILE__
, __LINE__
,
1873 _("remote_threads_extra_info"));
1875 if (use_threadextra_query
)
1877 sprintf (bufp
, "qThreadExtraInfo,%x", PIDGET (tp
->ptid
));
1879 getpkt (bufp
, (rs
->remote_packet_size
), 0);
1882 n
= min (strlen (bufp
) / 2, sizeof (display_buf
));
1883 result
= hex2bin (bufp
, display_buf
, n
);
1884 display_buf
[result
] = '\0';
1889 /* If the above query fails, fall back to the old method. */
1890 use_threadextra_query
= 0;
1891 set
= TAG_THREADID
| TAG_EXISTS
| TAG_THREADNAME
1892 | TAG_MOREDISPLAY
| TAG_DISPLAY
;
1893 int_to_threadref (&id
, PIDGET (tp
->ptid
));
1894 if (remote_get_threadinfo (&id
, set
, &threadinfo
))
1895 if (threadinfo
.active
)
1897 if (*threadinfo
.shortname
)
1898 n
+= sprintf(&display_buf
[0], " Name: %s,", threadinfo
.shortname
);
1899 if (*threadinfo
.display
)
1900 n
+= sprintf(&display_buf
[n
], " State: %s,", threadinfo
.display
);
1901 if (*threadinfo
.more_display
)
1902 n
+= sprintf(&display_buf
[n
], " Priority: %s",
1903 threadinfo
.more_display
);
1907 /* For purely cosmetic reasons, clear up trailing commas. */
1908 if (',' == display_buf
[n
-1])
1909 display_buf
[n
-1] = ' ';
1918 /* Restart the remote side; this is an extended protocol operation. */
1921 extended_remote_restart (void)
1923 struct remote_state
*rs
= get_remote_state ();
1924 char *buf
= alloca (rs
->remote_packet_size
);
1926 /* Send the restart command; for reasons I don't understand the
1927 remote side really expects a number after the "R". */
1929 sprintf (&buf
[1], "%x", 0);
1932 /* Now query for status so this looks just like we restarted
1933 gdbserver from scratch. */
1935 getpkt (buf
, (rs
->remote_packet_size
), 0);
1938 /* Clean up connection to a remote debugger. */
1941 remote_close (int quitting
)
1944 serial_close (remote_desc
);
1948 /* Query the remote side for the text, data and bss offsets. */
1953 struct remote_state
*rs
= get_remote_state ();
1954 char *buf
= alloca (rs
->remote_packet_size
);
1957 CORE_ADDR text_addr
, data_addr
, bss_addr
;
1958 struct section_offsets
*offs
;
1960 putpkt ("qOffsets");
1962 getpkt (buf
, (rs
->remote_packet_size
), 0);
1964 if (buf
[0] == '\000')
1965 return; /* Return silently. Stub doesn't support
1969 warning (_("Remote failure reply: %s"), buf
);
1973 /* Pick up each field in turn. This used to be done with scanf, but
1974 scanf will make trouble if CORE_ADDR size doesn't match
1975 conversion directives correctly. The following code will work
1976 with any size of CORE_ADDR. */
1977 text_addr
= data_addr
= bss_addr
= 0;
1981 if (strncmp (ptr
, "Text=", 5) == 0)
1984 /* Don't use strtol, could lose on big values. */
1985 while (*ptr
&& *ptr
!= ';')
1986 text_addr
= (text_addr
<< 4) + fromhex (*ptr
++);
1991 if (!lose
&& strncmp (ptr
, ";Data=", 6) == 0)
1994 while (*ptr
&& *ptr
!= ';')
1995 data_addr
= (data_addr
<< 4) + fromhex (*ptr
++);
2000 if (!lose
&& strncmp (ptr
, ";Bss=", 5) == 0)
2003 while (*ptr
&& *ptr
!= ';')
2004 bss_addr
= (bss_addr
<< 4) + fromhex (*ptr
++);
2010 error (_("Malformed response to offset query, %s"), buf
);
2012 if (symfile_objfile
== NULL
)
2015 offs
= ((struct section_offsets
*)
2016 alloca (SIZEOF_N_SECTION_OFFSETS (symfile_objfile
->num_sections
)));
2017 memcpy (offs
, symfile_objfile
->section_offsets
,
2018 SIZEOF_N_SECTION_OFFSETS (symfile_objfile
->num_sections
));
2020 offs
->offsets
[SECT_OFF_TEXT (symfile_objfile
)] = text_addr
;
2022 /* This is a temporary kludge to force data and bss to use the same offsets
2023 because that's what nlmconv does now. The real solution requires changes
2024 to the stub and remote.c that I don't have time to do right now. */
2026 offs
->offsets
[SECT_OFF_DATA (symfile_objfile
)] = data_addr
;
2027 offs
->offsets
[SECT_OFF_BSS (symfile_objfile
)] = data_addr
;
2029 objfile_relocate (symfile_objfile
, offs
);
2032 /* Stub for catch_errors. */
2035 remote_start_remote_dummy (struct ui_out
*uiout
, void *dummy
)
2037 start_remote (); /* Initialize gdb process mechanisms. */
2038 /* NOTE: Return something >=0. A -ve value is reserved for
2039 catch_exceptions. */
2044 remote_start_remote (struct ui_out
*uiout
, void *dummy
)
2046 immediate_quit
++; /* Allow user to interrupt it. */
2048 /* Ack any packet which the remote side has already sent. */
2049 serial_write (remote_desc
, "+", 1);
2051 /* Let the stub know that we want it to return the thread. */
2054 inferior_ptid
= remote_current_thread (inferior_ptid
);
2056 get_offsets (); /* Get text, data & bss offsets. */
2058 putpkt ("?"); /* Initiate a query from remote machine. */
2061 remote_start_remote_dummy (uiout
, dummy
);
2064 /* Open a connection to a remote debugger.
2065 NAME is the filename used for communication. */
2068 remote_open (char *name
, int from_tty
)
2070 remote_open_1 (name
, from_tty
, &remote_ops
, 0, 0);
2073 /* Just like remote_open, but with asynchronous support. */
2075 remote_async_open (char *name
, int from_tty
)
2077 remote_open_1 (name
, from_tty
, &remote_async_ops
, 0, 1);
2080 /* Open a connection to a remote debugger using the extended
2081 remote gdb protocol. NAME is the filename used for communication. */
2084 extended_remote_open (char *name
, int from_tty
)
2086 remote_open_1 (name
, from_tty
, &extended_remote_ops
, 1 /*extended_p */,
2090 /* Just like extended_remote_open, but with asynchronous support. */
2092 extended_remote_async_open (char *name
, int from_tty
)
2094 remote_open_1 (name
, from_tty
, &extended_async_remote_ops
,
2095 1 /*extended_p */, 1 /* async_p */);
2098 /* Generic code for opening a connection to a remote target. */
2101 init_all_packet_configs (void)
2104 update_packet_config (&remote_protocol_P
);
2105 update_packet_config (&remote_protocol_p
);
2106 update_packet_config (&remote_protocol_qSymbol
);
2107 update_packet_config (&remote_protocol_vcont
);
2108 for (i
= 0; i
< NR_Z_PACKET_TYPES
; i
++)
2109 update_packet_config (&remote_protocol_Z
[i
]);
2110 /* Force remote_write_bytes to check whether target supports binary
2112 update_packet_config (&remote_protocol_binary_download
);
2113 update_packet_config (&remote_protocol_qPart_auxv
);
2114 update_packet_config (&remote_protocol_qGetTLSAddr
);
2117 /* Symbol look-up. */
2120 remote_check_symbols (struct objfile
*objfile
)
2122 struct remote_state
*rs
= get_remote_state ();
2123 char *msg
, *reply
, *tmp
;
2124 struct minimal_symbol
*sym
;
2127 if (remote_protocol_qSymbol
.support
== PACKET_DISABLE
)
2130 msg
= alloca (rs
->remote_packet_size
);
2131 reply
= alloca (rs
->remote_packet_size
);
2133 /* Invite target to request symbol lookups. */
2135 putpkt ("qSymbol::");
2136 getpkt (reply
, (rs
->remote_packet_size
), 0);
2137 packet_ok (reply
, &remote_protocol_qSymbol
);
2139 while (strncmp (reply
, "qSymbol:", 8) == 0)
2142 end
= hex2bin (tmp
, msg
, strlen (tmp
) / 2);
2144 sym
= lookup_minimal_symbol (msg
, NULL
, NULL
);
2146 sprintf (msg
, "qSymbol::%s", &reply
[8]);
2148 sprintf (msg
, "qSymbol:%s:%s",
2149 paddr_nz (SYMBOL_VALUE_ADDRESS (sym
)),
2152 getpkt (reply
, (rs
->remote_packet_size
), 0);
2156 static struct serial
*
2157 remote_serial_open (char *name
)
2159 static int udp_warning
= 0;
2161 /* FIXME: Parsing NAME here is a hack. But we want to warn here instead
2162 of in ser-tcp.c, because it is the remote protocol assuming that the
2163 serial connection is reliable and not the serial connection promising
2165 if (!udp_warning
&& strncmp (name
, "udp:", 4) == 0)
2168 The remote protocol may be unreliable over UDP.\n\
2169 Some events may be lost, rendering further debugging impossible."));
2173 return serial_open (name
);
2177 remote_open_1 (char *name
, int from_tty
, struct target_ops
*target
,
2178 int extended_p
, int async_p
)
2180 struct remote_state
*rs
= get_remote_state ();
2182 error (_("To open a remote debug connection, you need to specify what\n"
2183 "serial device is attached to the remote system\n"
2184 "(e.g. /dev/ttyS0, /dev/ttya, COM1, etc.)."));
2186 /* See FIXME above. */
2188 wait_forever_enabled_p
= 1;
2190 reopen_exec_file ();
2193 target_preopen (from_tty
);
2195 unpush_target (target
);
2197 remote_desc
= remote_serial_open (name
);
2199 perror_with_name (name
);
2201 if (baud_rate
!= -1)
2203 if (serial_setbaudrate (remote_desc
, baud_rate
))
2205 /* The requested speed could not be set. Error out to
2206 top level after closing remote_desc. Take care to
2207 set remote_desc to NULL to avoid closing remote_desc
2209 serial_close (remote_desc
);
2211 perror_with_name (name
);
2215 serial_raw (remote_desc
);
2217 /* If there is something sitting in the buffer we might take it as a
2218 response to a command, which would be bad. */
2219 serial_flush_input (remote_desc
);
2223 puts_filtered ("Remote debugging using ");
2224 puts_filtered (name
);
2225 puts_filtered ("\n");
2227 push_target (target
); /* Switch to using remote target now. */
2229 init_all_packet_configs ();
2231 general_thread
= -2;
2232 continue_thread
= -2;
2234 /* Probe for ability to use "ThreadInfo" query, as required. */
2235 use_threadinfo_query
= 1;
2236 use_threadextra_query
= 1;
2238 /* Without this, some commands which require an active target (such
2239 as kill) won't work. This variable serves (at least) double duty
2240 as both the pid of the target process (if it has such), and as a
2241 flag indicating that a target is active. These functions should
2242 be split out into seperate variables, especially since GDB will
2243 someday have a notion of debugging several processes. */
2245 inferior_ptid
= pid_to_ptid (MAGIC_NULL_PID
);
2249 /* With this target we start out by owning the terminal. */
2250 remote_async_terminal_ours_p
= 1;
2252 /* FIXME: cagney/1999-09-23: During the initial connection it is
2253 assumed that the target is already ready and able to respond to
2254 requests. Unfortunately remote_start_remote() eventually calls
2255 wait_for_inferior() with no timeout. wait_forever_enabled_p gets
2256 around this. Eventually a mechanism that allows
2257 wait_for_inferior() to expect/get timeouts will be
2259 wait_forever_enabled_p
= 0;
2262 /* First delete any symbols previously loaded from shared libraries. */
2263 no_shared_libraries (NULL
, 0);
2265 /* Start the remote connection. If error() or QUIT, discard this
2266 target (we'd otherwise be in an inconsistent state) and then
2267 propogate the error on up the exception chain. This ensures that
2268 the caller doesn't stumble along blindly assuming that the
2269 function succeeded. The CLI doesn't have this problem but other
2270 UI's, such as MI do.
2272 FIXME: cagney/2002-05-19: Instead of re-throwing the exception,
2273 this function should return an error indication letting the
2274 caller restore the previous state. Unfortunately the command
2275 ``target remote'' is directly wired to this function making that
2276 impossible. On a positive note, the CLI side of this problem has
2277 been fixed - the function set_cmd_context() makes it possible for
2278 all the ``target ....'' commands to share a common callback
2279 function. See cli-dump.c. */
2281 struct gdb_exception ex
2282 = catch_exception (uiout
, remote_start_remote
, NULL
, RETURN_MASK_ALL
);
2287 wait_forever_enabled_p
= 1;
2288 throw_exception (ex
);
2293 wait_forever_enabled_p
= 1;
2297 /* Tell the remote that we are using the extended protocol. */
2298 char *buf
= alloca (rs
->remote_packet_size
);
2300 getpkt (buf
, (rs
->remote_packet_size
), 0);
2303 /* FIXME: need a master target_open vector from which all
2304 remote_opens can be called, so that stuff like this can
2305 go there. Failing that, the following code must be copied
2306 to the open function for any remote target that wants to
2307 support svr4 shared libraries. */
2309 /* Set up to detect and load shared libraries. */
2310 if (exec_bfd
) /* No use without an exec file. */
2312 #ifdef SOLIB_CREATE_INFERIOR_HOOK
2313 SOLIB_CREATE_INFERIOR_HOOK (PIDGET (inferior_ptid
));
2315 solib_create_inferior_hook ();
2317 remote_check_symbols (symfile_objfile
);
2320 observer_notify_inferior_created (¤t_target
, from_tty
);
2323 /* This takes a program previously attached to and detaches it. After
2324 this is done, GDB can be used to debug some other program. We
2325 better not have left any breakpoints in the target program or it'll
2326 die when it hits one. */
2329 remote_detach (char *args
, int from_tty
)
2331 struct remote_state
*rs
= get_remote_state ();
2332 char *buf
= alloca (rs
->remote_packet_size
);
2335 error (_("Argument given to \"detach\" when remotely debugging."));
2337 /* Tell the remote target to detach. */
2339 remote_send (buf
, (rs
->remote_packet_size
));
2341 /* Unregister the file descriptor from the event loop. */
2342 if (target_is_async_p ())
2343 serial_async (remote_desc
, NULL
, 0);
2345 target_mourn_inferior ();
2347 puts_filtered ("Ending remote debugging.\n");
2350 /* Same as remote_detach, but don't send the "D" packet; just disconnect. */
2353 remote_disconnect (char *args
, int from_tty
)
2356 error (_("Argument given to \"detach\" when remotely debugging."));
2358 /* Unregister the file descriptor from the event loop. */
2359 if (target_is_async_p ())
2360 serial_async (remote_desc
, NULL
, 0);
2362 target_mourn_inferior ();
2364 puts_filtered ("Ending remote debugging.\n");
2367 /* Convert hex digit A to a number. */
2372 if (a
>= '0' && a
<= '9')
2374 else if (a
>= 'a' && a
<= 'f')
2375 return a
- 'a' + 10;
2376 else if (a
>= 'A' && a
<= 'F')
2377 return a
- 'A' + 10;
2379 error (_("Reply contains invalid hex digit %d"), a
);
2383 hex2bin (const char *hex
, char *bin
, int count
)
2387 for (i
= 0; i
< count
; i
++)
2389 if (hex
[0] == 0 || hex
[1] == 0)
2391 /* Hex string is short, or of uneven length.
2392 Return the count that has been converted so far. */
2395 *bin
++ = fromhex (hex
[0]) * 16 + fromhex (hex
[1]);
2401 /* Convert number NIB to a hex digit. */
2409 return 'a' + nib
- 10;
2413 bin2hex (const char *bin
, char *hex
, int count
)
2416 /* May use a length, or a nul-terminated string as input. */
2418 count
= strlen (bin
);
2420 for (i
= 0; i
< count
; i
++)
2422 *hex
++ = tohex ((*bin
>> 4) & 0xf);
2423 *hex
++ = tohex (*bin
++ & 0xf);
2429 /* Check for the availability of vCont. This function should also check
2433 remote_vcont_probe (struct remote_state
*rs
, char *buf
)
2435 strcpy (buf
, "vCont?");
2437 getpkt (buf
, rs
->remote_packet_size
, 0);
2439 /* Make sure that the features we assume are supported. */
2440 if (strncmp (buf
, "vCont", 5) == 0)
2443 int support_s
, support_S
, support_c
, support_C
;
2449 while (p
&& *p
== ';')
2452 if (*p
== 's' && (*(p
+ 1) == ';' || *(p
+ 1) == 0))
2454 else if (*p
== 'S' && (*(p
+ 1) == ';' || *(p
+ 1) == 0))
2456 else if (*p
== 'c' && (*(p
+ 1) == ';' || *(p
+ 1) == 0))
2458 else if (*p
== 'C' && (*(p
+ 1) == ';' || *(p
+ 1) == 0))
2461 p
= strchr (p
, ';');
2464 /* If s, S, c, and C are not all supported, we can't use vCont. Clearing
2465 BUF will make packet_ok disable the packet. */
2466 if (!support_s
|| !support_S
|| !support_c
|| !support_C
)
2470 packet_ok (buf
, &remote_protocol_vcont
);
2473 /* Resume the remote inferior by using a "vCont" packet. The thread
2474 to be resumed is PTID; STEP and SIGGNAL indicate whether the
2475 resumed thread should be single-stepped and/or signalled. If PTID's
2476 PID is -1, then all threads are resumed; the thread to be stepped and/or
2477 signalled is given in the global INFERIOR_PTID. This function returns
2478 non-zero iff it resumes the inferior.
2480 This function issues a strict subset of all possible vCont commands at the
2484 remote_vcont_resume (ptid_t ptid
, int step
, enum target_signal siggnal
)
2486 struct remote_state
*rs
= get_remote_state ();
2487 int pid
= PIDGET (ptid
);
2488 char *buf
= NULL
, *outbuf
;
2489 struct cleanup
*old_cleanup
;
2491 buf
= xmalloc (rs
->remote_packet_size
);
2492 old_cleanup
= make_cleanup (xfree
, buf
);
2494 if (remote_protocol_vcont
.support
== PACKET_SUPPORT_UNKNOWN
)
2495 remote_vcont_probe (rs
, buf
);
2497 if (remote_protocol_vcont
.support
== PACKET_DISABLE
)
2499 do_cleanups (old_cleanup
);
2503 /* If we could generate a wider range of packets, we'd have to worry
2504 about overflowing BUF. Should there be a generic
2505 "multi-part-packet" packet? */
2507 if (PIDGET (inferior_ptid
) == MAGIC_NULL_PID
)
2509 /* MAGIC_NULL_PTID means that we don't have any active threads, so we
2510 don't have any PID numbers the inferior will understand. Make sure
2511 to only send forms that do not specify a PID. */
2512 if (step
&& siggnal
!= TARGET_SIGNAL_0
)
2513 outbuf
= xstrprintf ("vCont;S%02x", siggnal
);
2515 outbuf
= xstrprintf ("vCont;s");
2516 else if (siggnal
!= TARGET_SIGNAL_0
)
2517 outbuf
= xstrprintf ("vCont;C%02x", siggnal
);
2519 outbuf
= xstrprintf ("vCont;c");
2523 /* Resume all threads, with preference for INFERIOR_PTID. */
2524 if (step
&& siggnal
!= TARGET_SIGNAL_0
)
2525 outbuf
= xstrprintf ("vCont;S%02x:%x;c", siggnal
,
2526 PIDGET (inferior_ptid
));
2528 outbuf
= xstrprintf ("vCont;s:%x;c", PIDGET (inferior_ptid
));
2529 else if (siggnal
!= TARGET_SIGNAL_0
)
2530 outbuf
= xstrprintf ("vCont;C%02x:%x;c", siggnal
,
2531 PIDGET (inferior_ptid
));
2533 outbuf
= xstrprintf ("vCont;c");
2537 /* Scheduler locking; resume only PTID. */
2538 if (step
&& siggnal
!= TARGET_SIGNAL_0
)
2539 outbuf
= xstrprintf ("vCont;S%02x:%x", siggnal
, pid
);
2541 outbuf
= xstrprintf ("vCont;s:%x", pid
);
2542 else if (siggnal
!= TARGET_SIGNAL_0
)
2543 outbuf
= xstrprintf ("vCont;C%02x:%x", siggnal
, pid
);
2545 outbuf
= xstrprintf ("vCont;c:%x", pid
);
2548 gdb_assert (outbuf
&& strlen (outbuf
) < rs
->remote_packet_size
);
2549 make_cleanup (xfree
, outbuf
);
2553 do_cleanups (old_cleanup
);
2558 /* Tell the remote machine to resume. */
2560 static enum target_signal last_sent_signal
= TARGET_SIGNAL_0
;
2562 static int last_sent_step
;
2565 remote_resume (ptid_t ptid
, int step
, enum target_signal siggnal
)
2567 struct remote_state
*rs
= get_remote_state ();
2568 char *buf
= alloca (rs
->remote_packet_size
);
2569 int pid
= PIDGET (ptid
);
2571 last_sent_signal
= siggnal
;
2572 last_sent_step
= step
;
2574 /* A hook for when we need to do something at the last moment before
2576 if (deprecated_target_resume_hook
)
2577 (*deprecated_target_resume_hook
) ();
2579 /* The vCont packet doesn't need to specify threads via Hc. */
2580 if (remote_vcont_resume (ptid
, step
, siggnal
))
2583 /* All other supported resume packets do use Hc, so call set_thread. */
2585 set_thread (0, 0); /* Run any thread. */
2587 set_thread (pid
, 0); /* Run this thread. */
2589 if (siggnal
!= TARGET_SIGNAL_0
)
2591 buf
[0] = step
? 'S' : 'C';
2592 buf
[1] = tohex (((int) siggnal
>> 4) & 0xf);
2593 buf
[2] = tohex (((int) siggnal
) & 0xf);
2597 strcpy (buf
, step
? "s" : "c");
2602 /* Same as remote_resume, but with async support. */
2604 remote_async_resume (ptid_t ptid
, int step
, enum target_signal siggnal
)
2606 remote_resume (ptid
, step
, siggnal
);
2608 /* We are about to start executing the inferior, let's register it
2609 with the event loop. NOTE: this is the one place where all the
2610 execution commands end up. We could alternatively do this in each
2611 of the execution commands in infcmd.c. */
2612 /* FIXME: ezannoni 1999-09-28: We may need to move this out of here
2613 into infcmd.c in order to allow inferior function calls to work
2614 NOT asynchronously. */
2615 if (target_can_async_p ())
2616 target_async (inferior_event_handler
, 0);
2617 /* Tell the world that the target is now executing. */
2618 /* FIXME: cagney/1999-09-23: Is it the targets responsibility to set
2619 this? Instead, should the client of target just assume (for
2620 async targets) that the target is going to start executing? Is
2621 this information already found in the continuation block? */
2622 if (target_is_async_p ())
2623 target_executing
= 1;
2627 /* Set up the signal handler for SIGINT, while the target is
2628 executing, ovewriting the 'regular' SIGINT signal handler. */
2630 initialize_sigint_signal_handler (void)
2632 sigint_remote_token
=
2633 create_async_signal_handler (async_remote_interrupt
, NULL
);
2634 signal (SIGINT
, handle_remote_sigint
);
2637 /* Signal handler for SIGINT, while the target is executing. */
2639 handle_remote_sigint (int sig
)
2641 signal (sig
, handle_remote_sigint_twice
);
2642 sigint_remote_twice_token
=
2643 create_async_signal_handler (async_remote_interrupt_twice
, NULL
);
2644 mark_async_signal_handler_wrapper (sigint_remote_token
);
2647 /* Signal handler for SIGINT, installed after SIGINT has already been
2648 sent once. It will take effect the second time that the user sends
2651 handle_remote_sigint_twice (int sig
)
2653 signal (sig
, handle_sigint
);
2654 sigint_remote_twice_token
=
2655 create_async_signal_handler (inferior_event_handler_wrapper
, NULL
);
2656 mark_async_signal_handler_wrapper (sigint_remote_twice_token
);
2659 /* Perform the real interruption of the target execution, in response
2662 async_remote_interrupt (gdb_client_data arg
)
2665 fprintf_unfiltered (gdb_stdlog
, "remote_interrupt called\n");
2670 /* Perform interrupt, if the first attempt did not succeed. Just give
2671 up on the target alltogether. */
2673 async_remote_interrupt_twice (gdb_client_data arg
)
2676 fprintf_unfiltered (gdb_stdlog
, "remote_interrupt_twice called\n");
2677 /* Do something only if the target was not killed by the previous
2679 if (target_executing
)
2682 signal (SIGINT
, handle_remote_sigint
);
2686 /* Reinstall the usual SIGINT handlers, after the target has
2689 cleanup_sigint_signal_handler (void *dummy
)
2691 signal (SIGINT
, handle_sigint
);
2692 if (sigint_remote_twice_token
)
2693 delete_async_signal_handler ((struct async_signal_handler
**)
2694 &sigint_remote_twice_token
);
2695 if (sigint_remote_token
)
2696 delete_async_signal_handler ((struct async_signal_handler
**)
2697 &sigint_remote_token
);
2700 /* Send ^C to target to halt it. Target will respond, and send us a
2702 static void (*ofunc
) (int);
2704 /* The command line interface's stop routine. This function is installed
2705 as a signal handler for SIGINT. The first time a user requests a
2706 stop, we call remote_stop to send a break or ^C. If there is no
2707 response from the target (it didn't stop when the user requested it),
2708 we ask the user if he'd like to detach from the target. */
2710 remote_interrupt (int signo
)
2712 /* If this doesn't work, try more severe steps. */
2713 signal (signo
, remote_interrupt_twice
);
2716 fprintf_unfiltered (gdb_stdlog
, "remote_interrupt called\n");
2721 /* The user typed ^C twice. */
2724 remote_interrupt_twice (int signo
)
2726 signal (signo
, ofunc
);
2728 signal (signo
, remote_interrupt
);
2731 /* This is the generic stop called via the target vector. When a target
2732 interrupt is requested, either by the command line or the GUI, we
2733 will eventually end up here. */
2737 /* Send a break or a ^C, depending on user preference. */
2739 fprintf_unfiltered (gdb_stdlog
, "remote_stop called\n");
2742 serial_send_break (remote_desc
);
2744 serial_write (remote_desc
, "\003", 1);
2747 /* Ask the user what to do when an interrupt is received. */
2750 interrupt_query (void)
2752 target_terminal_ours ();
2754 if (query ("Interrupted while waiting for the program.\n\
2755 Give up (and stop debugging it)? "))
2757 target_mourn_inferior ();
2758 deprecated_throw_reason (RETURN_QUIT
);
2761 target_terminal_inferior ();
2764 /* Enable/disable target terminal ownership. Most targets can use
2765 terminal groups to control terminal ownership. Remote targets are
2766 different in that explicit transfer of ownership to/from GDB/target
2770 remote_async_terminal_inferior (void)
2772 /* FIXME: cagney/1999-09-27: Shouldn't need to test for
2773 sync_execution here. This function should only be called when
2774 GDB is resuming the inferior in the forground. A background
2775 resume (``run&'') should leave GDB in control of the terminal and
2776 consequently should not call this code. */
2777 if (!sync_execution
)
2779 /* FIXME: cagney/1999-09-27: Closely related to the above. Make
2780 calls target_terminal_*() idenpotent. The event-loop GDB talking
2781 to an asynchronous target with a synchronous command calls this
2782 function from both event-top.c and infrun.c/infcmd.c. Once GDB
2783 stops trying to transfer the terminal to the target when it
2784 shouldn't this guard can go away. */
2785 if (!remote_async_terminal_ours_p
)
2787 delete_file_handler (input_fd
);
2788 remote_async_terminal_ours_p
= 0;
2789 initialize_sigint_signal_handler ();
2790 /* NOTE: At this point we could also register our selves as the
2791 recipient of all input. Any characters typed could then be
2792 passed on down to the target. */
2796 remote_async_terminal_ours (void)
2798 /* See FIXME in remote_async_terminal_inferior. */
2799 if (!sync_execution
)
2801 /* See FIXME in remote_async_terminal_inferior. */
2802 if (remote_async_terminal_ours_p
)
2804 cleanup_sigint_signal_handler (NULL
);
2805 add_file_handler (input_fd
, stdin_event_handler
, 0);
2806 remote_async_terminal_ours_p
= 1;
2809 /* If nonzero, ignore the next kill. */
2814 remote_console_output (char *msg
)
2818 for (p
= msg
; p
[0] && p
[1]; p
+= 2)
2821 char c
= fromhex (p
[0]) * 16 + fromhex (p
[1]);
2824 fputs_unfiltered (tb
, gdb_stdtarg
);
2826 gdb_flush (gdb_stdtarg
);
2829 /* Wait until the remote machine stops, then return,
2830 storing status in STATUS just as `wait' would.
2831 Returns "pid", which in the case of a multi-threaded
2832 remote OS, is the thread-id. */
2835 remote_wait (ptid_t ptid
, struct target_waitstatus
*status
)
2837 struct remote_state
*rs
= get_remote_state ();
2838 unsigned char *buf
= alloca (rs
->remote_packet_size
);
2839 ULONGEST thread_num
= -1;
2842 status
->kind
= TARGET_WAITKIND_EXITED
;
2843 status
->value
.integer
= 0;
2849 ofunc
= signal (SIGINT
, remote_interrupt
);
2850 getpkt (buf
, (rs
->remote_packet_size
), 1);
2851 signal (SIGINT
, ofunc
);
2853 /* This is a hook for when we need to do something (perhaps the
2854 collection of trace data) every time the target stops. */
2855 if (deprecated_target_wait_loop_hook
)
2856 (*deprecated_target_wait_loop_hook
) ();
2858 remote_stopped_by_watchpoint_p
= 0;
2862 case 'E': /* Error of some sort. */
2863 warning (_("Remote failure reply: %s"), buf
);
2865 case 'F': /* File-I/O request. */
2866 remote_fileio_request (buf
);
2868 case 'T': /* Status with PC, SP, FP, ... */
2870 char regs
[MAX_REGISTER_SIZE
];
2872 /* Expedited reply, containing Signal, {regno, reg} repeat. */
2873 /* format is: 'Tssn...:r...;n...:r...;n...:r...;#cc', where
2875 n... = register number
2876 r... = register contents
2878 p
= &buf
[3]; /* after Txx */
2887 /* If the packet contains a register number save it in
2888 pnum and set p1 to point to the character following
2889 it. Otherwise p1 points to p. */
2891 /* If this packet is an awatch packet, don't parse the
2892 'a' as a register number. */
2894 if (strncmp (p
, "awatch", strlen("awatch")) != 0)
2896 /* Read the ``P'' register number. */
2897 pnum
= strtol (p
, &p_temp
, 16);
2898 p1
= (unsigned char *) p_temp
;
2903 if (p1
== p
) /* No register number present here. */
2905 p1
= (unsigned char *) strchr (p
, ':');
2907 warning (_("Malformed packet(a) (missing colon): %s\n\
2910 if (strncmp (p
, "thread", p1
- p
) == 0)
2912 p_temp
= unpack_varlen_hex (++p1
, &thread_num
);
2913 record_currthread (thread_num
);
2914 p
= (unsigned char *) p_temp
;
2916 else if ((strncmp (p
, "watch", p1
- p
) == 0)
2917 || (strncmp (p
, "rwatch", p1
- p
) == 0)
2918 || (strncmp (p
, "awatch", p1
- p
) == 0))
2920 remote_stopped_by_watchpoint_p
= 1;
2921 p
= unpack_varlen_hex (++p1
, &addr
);
2922 remote_watch_data_address
= (CORE_ADDR
)addr
;
2926 /* Silently skip unknown optional info. */
2927 p_temp
= strchr (p1
+ 1, ';');
2929 p
= (unsigned char *) p_temp
;
2934 struct packet_reg
*reg
= packet_reg_from_pnum (rs
, pnum
);
2938 error (_("Malformed packet(b) (missing colon): %s\n\
2943 error (_("Remote sent bad register number %s: %s\n\
2945 phex_nz (pnum
, 0), p
, buf
);
2947 fieldsize
= hex2bin (p
, regs
,
2948 register_size (current_gdbarch
,
2951 if (fieldsize
< register_size (current_gdbarch
,
2953 warning (_("Remote reply is too short: %s"), buf
);
2954 regcache_raw_supply (current_regcache
,
2959 error (_("Remote register badly formatted: %s\nhere: %s"),
2964 case 'S': /* Old style status, just signal only. */
2965 status
->kind
= TARGET_WAITKIND_STOPPED
;
2966 status
->value
.sig
= (enum target_signal
)
2967 (((fromhex (buf
[1])) << 4) + (fromhex (buf
[2])));
2971 thread_num
= strtol ((const char *) &buf
[4], NULL
, 16);
2972 record_currthread (thread_num
);
2975 case 'W': /* Target exited. */
2977 /* The remote process exited. */
2978 status
->kind
= TARGET_WAITKIND_EXITED
;
2979 status
->value
.integer
= (fromhex (buf
[1]) << 4) + fromhex (buf
[2]);
2983 status
->kind
= TARGET_WAITKIND_SIGNALLED
;
2984 status
->value
.sig
= (enum target_signal
)
2985 (((fromhex (buf
[1])) << 4) + (fromhex (buf
[2])));
2989 case 'O': /* Console output. */
2990 remote_console_output (buf
+ 1);
2993 if (last_sent_signal
!= TARGET_SIGNAL_0
)
2995 /* Zero length reply means that we tried 'S' or 'C' and
2996 the remote system doesn't support it. */
2997 target_terminal_ours_for_output ();
2999 ("Can't send signals to this remote system. %s not sent.\n",
3000 target_signal_to_name (last_sent_signal
));
3001 last_sent_signal
= TARGET_SIGNAL_0
;
3002 target_terminal_inferior ();
3004 strcpy ((char *) buf
, last_sent_step
? "s" : "c");
3005 putpkt ((char *) buf
);
3008 /* else fallthrough */
3010 warning (_("Invalid remote reply: %s"), buf
);
3015 if (thread_num
!= -1)
3017 return pid_to_ptid (thread_num
);
3019 return inferior_ptid
;
3022 /* Async version of remote_wait. */
3024 remote_async_wait (ptid_t ptid
, struct target_waitstatus
*status
)
3026 struct remote_state
*rs
= get_remote_state ();
3027 unsigned char *buf
= alloca (rs
->remote_packet_size
);
3028 ULONGEST thread_num
= -1;
3031 status
->kind
= TARGET_WAITKIND_EXITED
;
3032 status
->value
.integer
= 0;
3034 remote_stopped_by_watchpoint_p
= 0;
3040 if (!target_is_async_p ())
3041 ofunc
= signal (SIGINT
, remote_interrupt
);
3042 /* FIXME: cagney/1999-09-27: If we're in async mode we should
3043 _never_ wait for ever -> test on target_is_async_p().
3044 However, before we do that we need to ensure that the caller
3045 knows how to take the target into/out of async mode. */
3046 getpkt (buf
, (rs
->remote_packet_size
), wait_forever_enabled_p
);
3047 if (!target_is_async_p ())
3048 signal (SIGINT
, ofunc
);
3050 /* This is a hook for when we need to do something (perhaps the
3051 collection of trace data) every time the target stops. */
3052 if (deprecated_target_wait_loop_hook
)
3053 (*deprecated_target_wait_loop_hook
) ();
3057 case 'E': /* Error of some sort. */
3058 warning (_("Remote failure reply: %s"), buf
);
3060 case 'F': /* File-I/O request. */
3061 remote_fileio_request (buf
);
3063 case 'T': /* Status with PC, SP, FP, ... */
3065 char regs
[MAX_REGISTER_SIZE
];
3067 /* Expedited reply, containing Signal, {regno, reg} repeat. */
3068 /* format is: 'Tssn...:r...;n...:r...;n...:r...;#cc', where
3070 n... = register number
3071 r... = register contents
3073 p
= &buf
[3]; /* after Txx */
3082 /* If the packet contains a register number, save it
3083 in pnum and set p1 to point to the character
3084 following it. Otherwise p1 points to p. */
3086 /* If this packet is an awatch packet, don't parse the 'a'
3087 as a register number. */
3089 if (!strncmp (p
, "awatch", strlen ("awatch")) != 0)
3091 /* Read the register number. */
3092 pnum
= strtol (p
, &p_temp
, 16);
3093 p1
= (unsigned char *) p_temp
;
3098 if (p1
== p
) /* No register number present here. */
3100 p1
= (unsigned char *) strchr (p
, ':');
3102 error (_("Malformed packet(a) (missing colon): %s\n\
3105 if (strncmp (p
, "thread", p1
- p
) == 0)
3107 p_temp
= unpack_varlen_hex (++p1
, &thread_num
);
3108 record_currthread (thread_num
);
3109 p
= (unsigned char *) p_temp
;
3111 else if ((strncmp (p
, "watch", p1
- p
) == 0)
3112 || (strncmp (p
, "rwatch", p1
- p
) == 0)
3113 || (strncmp (p
, "awatch", p1
- p
) == 0))
3115 remote_stopped_by_watchpoint_p
= 1;
3116 p
= unpack_varlen_hex (++p1
, &addr
);
3117 remote_watch_data_address
= (CORE_ADDR
)addr
;
3121 /* Silently skip unknown optional info. */
3122 p_temp
= (unsigned char *) strchr (p1
+ 1, ';');
3130 struct packet_reg
*reg
= packet_reg_from_pnum (rs
, pnum
);
3133 error (_("Malformed packet(b) (missing colon): %s\n\
3138 error (_("Remote sent bad register number %ld: %s\n\
3142 fieldsize
= hex2bin (p
, regs
,
3143 register_size (current_gdbarch
,
3146 if (fieldsize
< register_size (current_gdbarch
,
3148 warning (_("Remote reply is too short: %s"), buf
);
3149 regcache_raw_supply (current_regcache
, reg
->regnum
, regs
);
3153 error (_("Remote register badly formatted: %s\nhere: %s"),
3158 case 'S': /* Old style status, just signal only. */
3159 status
->kind
= TARGET_WAITKIND_STOPPED
;
3160 status
->value
.sig
= (enum target_signal
)
3161 (((fromhex (buf
[1])) << 4) + (fromhex (buf
[2])));
3165 thread_num
= strtol ((const char *) &buf
[4], NULL
, 16);
3166 record_currthread (thread_num
);
3169 case 'W': /* Target exited. */
3171 /* The remote process exited. */
3172 status
->kind
= TARGET_WAITKIND_EXITED
;
3173 status
->value
.integer
= (fromhex (buf
[1]) << 4) + fromhex (buf
[2]);
3177 status
->kind
= TARGET_WAITKIND_SIGNALLED
;
3178 status
->value
.sig
= (enum target_signal
)
3179 (((fromhex (buf
[1])) << 4) + (fromhex (buf
[2])));
3183 case 'O': /* Console output. */
3184 remote_console_output (buf
+ 1);
3185 /* Return immediately to the event loop. The event loop will
3186 still be waiting on the inferior afterwards. */
3187 status
->kind
= TARGET_WAITKIND_IGNORE
;
3190 if (last_sent_signal
!= TARGET_SIGNAL_0
)
3192 /* Zero length reply means that we tried 'S' or 'C' and
3193 the remote system doesn't support it. */
3194 target_terminal_ours_for_output ();
3196 ("Can't send signals to this remote system. %s not sent.\n",
3197 target_signal_to_name (last_sent_signal
));
3198 last_sent_signal
= TARGET_SIGNAL_0
;
3199 target_terminal_inferior ();
3201 strcpy ((char *) buf
, last_sent_step
? "s" : "c");
3202 putpkt ((char *) buf
);
3205 /* else fallthrough */
3207 warning (_("Invalid remote reply: %s"), buf
);
3212 if (thread_num
!= -1)
3214 return pid_to_ptid (thread_num
);
3216 return inferior_ptid
;
3219 /* Number of bytes of registers this stub implements. */
3221 static int register_bytes_found
;
3223 /* Read the remote registers into the block REGS. */
3224 /* Currently we just read all the registers, so we don't use regnum. */
3227 fetch_register_using_p (int regnum
)
3229 struct remote_state
*rs
= get_remote_state ();
3230 char *buf
= alloca (rs
->remote_packet_size
), *p
;
3231 char regp
[MAX_REGISTER_SIZE
];
3236 p
+= hexnumstr (p
, regnum
);
3238 remote_send (buf
, rs
->remote_packet_size
);
3240 /* If the stub didn't recognize the packet, or if we got an error,
3242 if (buf
[0] == '\0' || buf
[0] == 'E')
3245 /* If this register is unfetchable, tell the regcache. */
3248 regcache_raw_supply (current_regcache
, regnum
, NULL
);
3249 set_register_cached (regnum
, -1);
3253 /* Otherwise, parse and supply the value. */
3260 error (_("fetch_register_using_p: early buf termination"));
3264 regp
[i
++] = fromhex (p
[0]) * 16 + fromhex (p
[1]);
3267 regcache_raw_supply (current_regcache
, regnum
, regp
);
3272 remote_fetch_registers (int regnum
)
3274 struct remote_state
*rs
= get_remote_state ();
3275 char *buf
= alloca (rs
->remote_packet_size
);
3278 char *regs
= alloca (rs
->sizeof_g_packet
);
3280 set_thread (PIDGET (inferior_ptid
), 1);
3284 struct packet_reg
*reg
= packet_reg_from_regnum (rs
, regnum
);
3285 gdb_assert (reg
!= NULL
);
3286 if (!reg
->in_g_packet
)
3287 internal_error (__FILE__
, __LINE__
,
3288 _("Attempt to fetch a non G-packet register when this "
3289 "remote.c does not support the p-packet."));
3291 switch (remote_protocol_p
.support
)
3293 case PACKET_DISABLE
:
3296 if (fetch_register_using_p (regnum
))
3299 error (_("Protocol error: p packet not recognized by stub"));
3300 case PACKET_SUPPORT_UNKNOWN
:
3301 if (fetch_register_using_p (regnum
))
3303 /* The stub recognized the 'p' packet. Remember this. */
3304 remote_protocol_p
.support
= PACKET_ENABLE
;
3309 /* The stub does not support the 'P' packet. Use 'G'
3310 instead, and don't try using 'P' in the future (it
3311 will just waste our time). */
3312 remote_protocol_p
.support
= PACKET_DISABLE
;
3318 remote_send (buf
, (rs
->remote_packet_size
));
3320 /* Save the size of the packet sent to us by the target. Its used
3321 as a heuristic when determining the max size of packets that the
3322 target can safely receive. */
3323 if ((rs
->actual_register_packet_size
) == 0)
3324 (rs
->actual_register_packet_size
) = strlen (buf
);
3326 /* Unimplemented registers read as all bits zero. */
3327 memset (regs
, 0, rs
->sizeof_g_packet
);
3329 /* We can get out of synch in various cases. If the first character
3330 in the buffer is not a hex character, assume that has happened
3331 and try to fetch another packet to read. */
3332 while ((buf
[0] < '0' || buf
[0] > '9')
3333 && (buf
[0] < 'A' || buf
[0] > 'F')
3334 && (buf
[0] < 'a' || buf
[0] > 'f')
3335 && buf
[0] != 'x') /* New: unavailable register value. */
3338 fprintf_unfiltered (gdb_stdlog
,
3339 "Bad register packet; fetching a new packet\n");
3340 getpkt (buf
, (rs
->remote_packet_size
), 0);
3343 /* Reply describes registers byte by byte, each byte encoded as two
3344 hex characters. Suck them all up, then supply them to the
3345 register cacheing/storage mechanism. */
3348 for (i
= 0; i
< rs
->sizeof_g_packet
; i
++)
3354 warning (_("Remote reply is of odd length: %s"), buf
);
3355 /* Don't change register_bytes_found in this case, and don't
3356 print a second warning. */
3359 if (p
[0] == 'x' && p
[1] == 'x')
3360 regs
[i
] = 0; /* 'x' */
3362 regs
[i
] = fromhex (p
[0]) * 16 + fromhex (p
[1]);
3366 if (i
!= register_bytes_found
)
3368 register_bytes_found
= i
;
3369 if (REGISTER_BYTES_OK_P ()
3370 && !REGISTER_BYTES_OK (i
))
3371 warning (_("Remote reply is too short: %s"), buf
);
3377 for (i
= 0; i
< NUM_REGS
+ NUM_PSEUDO_REGS
; i
++)
3379 struct packet_reg
*r
= &rs
->regs
[i
];
3382 if (r
->offset
* 2 >= strlen (buf
))
3383 /* A short packet that didn't include the register's
3384 value, this implies that the register is zero (and
3385 not that the register is unavailable). Supply that
3387 regcache_raw_supply (current_regcache
, r
->regnum
, NULL
);
3388 else if (buf
[r
->offset
* 2] == 'x')
3390 gdb_assert (r
->offset
* 2 < strlen (buf
));
3391 /* The register isn't available, mark it as such (at
3392 the same time setting the value to zero). */
3393 regcache_raw_supply (current_regcache
, r
->regnum
, NULL
);
3394 set_register_cached (i
, -1);
3397 regcache_raw_supply (current_regcache
, r
->regnum
,
3404 /* Prepare to store registers. Since we may send them all (using a
3405 'G' request), we have to read out the ones we don't want to change
3409 remote_prepare_to_store (void)
3411 struct remote_state
*rs
= get_remote_state ();
3413 char buf
[MAX_REGISTER_SIZE
];
3415 /* Make sure the entire registers array is valid. */
3416 switch (remote_protocol_P
.support
)
3418 case PACKET_DISABLE
:
3419 case PACKET_SUPPORT_UNKNOWN
:
3420 /* Make sure all the necessary registers are cached. */
3421 for (i
= 0; i
< NUM_REGS
; i
++)
3422 if (rs
->regs
[i
].in_g_packet
)
3423 regcache_raw_read (current_regcache
, rs
->regs
[i
].regnum
, buf
);
3430 /* Helper: Attempt to store REGNUM using the P packet. Return fail IFF
3431 packet was not recognized. */
3434 store_register_using_P (int regnum
)
3436 struct remote_state
*rs
= get_remote_state ();
3437 struct packet_reg
*reg
= packet_reg_from_regnum (rs
, regnum
);
3438 /* Try storing a single register. */
3439 char *buf
= alloca (rs
->remote_packet_size
);
3440 char regp
[MAX_REGISTER_SIZE
];
3443 sprintf (buf
, "P%s=", phex_nz (reg
->pnum
, 0));
3444 p
= buf
+ strlen (buf
);
3445 regcache_raw_collect (current_regcache
, reg
->regnum
, regp
);
3446 bin2hex (regp
, p
, register_size (current_gdbarch
, reg
->regnum
));
3447 remote_send (buf
, rs
->remote_packet_size
);
3449 return buf
[0] != '\0';
3453 /* Store register REGNUM, or all registers if REGNUM == -1, from the
3454 contents of the register cache buffer. FIXME: ignores errors. */
3457 remote_store_registers (int regnum
)
3459 struct remote_state
*rs
= get_remote_state ();
3464 set_thread (PIDGET (inferior_ptid
), 1);
3468 switch (remote_protocol_P
.support
)
3470 case PACKET_DISABLE
:
3473 if (store_register_using_P (regnum
))
3476 error (_("Protocol error: P packet not recognized by stub"));
3477 case PACKET_SUPPORT_UNKNOWN
:
3478 if (store_register_using_P (regnum
))
3480 /* The stub recognized the 'P' packet. Remember this. */
3481 remote_protocol_P
.support
= PACKET_ENABLE
;
3486 /* The stub does not support the 'P' packet. Use 'G'
3487 instead, and don't try using 'P' in the future (it
3488 will just waste our time). */
3489 remote_protocol_P
.support
= PACKET_DISABLE
;
3495 /* Extract all the registers in the regcache copying them into a
3499 regs
= alloca (rs
->sizeof_g_packet
);
3500 memset (regs
, 0, rs
->sizeof_g_packet
);
3501 for (i
= 0; i
< NUM_REGS
+ NUM_PSEUDO_REGS
; i
++)
3503 struct packet_reg
*r
= &rs
->regs
[i
];
3505 regcache_raw_collect (current_regcache
, r
->regnum
, regs
+ r
->offset
);
3509 /* Command describes registers byte by byte,
3510 each byte encoded as two hex characters. */
3511 buf
= alloca (rs
->remote_packet_size
);
3514 /* remote_prepare_to_store insures that register_bytes_found gets set. */
3515 bin2hex (regs
, p
, register_bytes_found
);
3516 remote_send (buf
, (rs
->remote_packet_size
));
3520 /* Return the number of hex digits in num. */
3523 hexnumlen (ULONGEST num
)
3527 for (i
= 0; num
!= 0; i
++)
3533 /* Set BUF to the minimum number of hex digits representing NUM. */
3536 hexnumstr (char *buf
, ULONGEST num
)
3538 int len
= hexnumlen (num
);
3539 return hexnumnstr (buf
, num
, len
);
3543 /* Set BUF to the hex digits representing NUM, padded to WIDTH characters. */
3546 hexnumnstr (char *buf
, ULONGEST num
, int width
)
3552 for (i
= width
- 1; i
>= 0; i
--)
3554 buf
[i
] = "0123456789abcdef"[(num
& 0xf)];
3561 /* Mask all but the least significant REMOTE_ADDRESS_SIZE bits. */
3564 remote_address_masked (CORE_ADDR addr
)
3566 if (remote_address_size
> 0
3567 && remote_address_size
< (sizeof (ULONGEST
) * 8))
3569 /* Only create a mask when that mask can safely be constructed
3570 in a ULONGEST variable. */
3572 mask
= (mask
<< remote_address_size
) - 1;
3578 /* Determine whether the remote target supports binary downloading.
3579 This is accomplished by sending a no-op memory write of zero length
3580 to the target at the specified address. It does not suffice to send
3581 the whole packet, since many stubs strip the eighth bit and
3582 subsequently compute a wrong checksum, which causes real havoc with
3585 NOTE: This can still lose if the serial line is not eight-bit
3586 clean. In cases like this, the user should clear "remote
3590 check_binary_download (CORE_ADDR addr
)
3592 struct remote_state
*rs
= get_remote_state ();
3593 switch (remote_protocol_binary_download
.support
)
3595 case PACKET_DISABLE
:
3599 case PACKET_SUPPORT_UNKNOWN
:
3601 char *buf
= alloca (rs
->remote_packet_size
);
3606 p
+= hexnumstr (p
, (ULONGEST
) addr
);
3608 p
+= hexnumstr (p
, (ULONGEST
) 0);
3612 putpkt_binary (buf
, (int) (p
- buf
));
3613 getpkt (buf
, (rs
->remote_packet_size
), 0);
3618 fprintf_unfiltered (gdb_stdlog
,
3619 "binary downloading NOT suppported by target\n");
3620 remote_protocol_binary_download
.support
= PACKET_DISABLE
;
3625 fprintf_unfiltered (gdb_stdlog
,
3626 "binary downloading suppported by target\n");
3627 remote_protocol_binary_download
.support
= PACKET_ENABLE
;
3634 /* Write memory data directly to the remote machine.
3635 This does not inform the data cache; the data cache uses this.
3636 MEMADDR is the address in the remote memory space.
3637 MYADDR is the address of the buffer in our space.
3638 LEN is the number of bytes.
3640 Returns number of bytes transferred, or 0 (setting errno) for
3641 error. Only transfer a single packet. */
3644 remote_write_bytes (CORE_ADDR memaddr
, char *myaddr
, int len
)
3648 unsigned char *plen
;
3654 unsigned char *payload_start
;
3656 /* Verify that the target can support a binary download. */
3657 check_binary_download (memaddr
);
3659 payload_size
= get_memory_write_packet_size ();
3661 /* Compute the size, and then allocate space for the largest
3662 possible packet. Include space for an extra trailing NUL. */
3663 sizeof_buf
= payload_size
+ 1;
3664 buf
= alloca (sizeof_buf
);
3666 /* Compute the size of the actual payload by subtracting out the
3667 packet header and footer overhead: "$M<memaddr>,<len>:...#nn".
3669 payload_size
-= strlen ("$M,:#NN");
3670 payload_size
-= hexnumlen (memaddr
);
3672 /* Construct the packet header: "[MX]<memaddr>,<len>:". */
3674 /* Append "[XM]". Compute a best guess of the number of bytes
3675 actually transfered. */
3677 switch (remote_protocol_binary_download
.support
)
3681 /* Best guess at number of bytes that will fit. */
3682 todo
= min (len
, payload_size
);
3683 payload_size
-= hexnumlen (todo
);
3684 todo
= min (todo
, payload_size
);
3686 case PACKET_DISABLE
:
3688 /* Num bytes that will fit. */
3689 todo
= min (len
, payload_size
/ 2);
3690 payload_size
-= hexnumlen (todo
);
3691 todo
= min (todo
, payload_size
/ 2);
3693 case PACKET_SUPPORT_UNKNOWN
:
3694 internal_error (__FILE__
, __LINE__
,
3695 _("remote_write_bytes: bad internal state"));
3697 internal_error (__FILE__
, __LINE__
, _("bad switch"));
3700 internal_error (__FILE__
, __LINE__
,
3701 _("minumum packet size too small to write data"));
3703 /* Append "<memaddr>". */
3704 memaddr
= remote_address_masked (memaddr
);
3705 p
+= hexnumstr (p
, (ULONGEST
) memaddr
);
3710 /* Append <len>. Retain the location/size of <len>. It may need to
3711 be adjusted once the packet body has been created. */
3713 plenlen
= hexnumstr (p
, (ULONGEST
) todo
);
3720 /* Append the packet body. */
3722 switch (remote_protocol_binary_download
.support
)
3725 /* Binary mode. Send target system values byte by byte, in
3726 increasing byte addresses. Only escape certain critical
3729 (nr_bytes
< todo
) && (p
- payload_start
) < payload_size
;
3732 switch (myaddr
[nr_bytes
] & 0xff)
3737 /* These must be escaped. */
3739 *p
++ = (myaddr
[nr_bytes
] & 0xff) ^ 0x20;
3742 *p
++ = myaddr
[nr_bytes
] & 0xff;
3746 if (nr_bytes
< todo
)
3748 /* Escape chars have filled up the buffer prematurely,
3749 and we have actually sent fewer bytes than planned.
3750 Fix-up the length field of the packet. Use the same
3751 number of characters as before. */
3752 plen
+= hexnumnstr (plen
, (ULONGEST
) nr_bytes
, plenlen
);
3753 *plen
= ':'; /* overwrite \0 from hexnumnstr() */
3756 case PACKET_DISABLE
:
3757 /* Normal mode: Send target system values byte by byte, in
3758 increasing byte addresses. Each byte is encoded as a two hex
3760 nr_bytes
= bin2hex (myaddr
, p
, todo
);
3763 case PACKET_SUPPORT_UNKNOWN
:
3764 internal_error (__FILE__
, __LINE__
,
3765 _("remote_write_bytes: bad internal state"));
3767 internal_error (__FILE__
, __LINE__
, _("bad switch"));
3770 putpkt_binary (buf
, (int) (p
- buf
));
3771 getpkt (buf
, sizeof_buf
, 0);
3775 /* There is no correspondance between what the remote protocol
3776 uses for errors and errno codes. We would like a cleaner way
3777 of representing errors (big enough to include errno codes,
3778 bfd_error codes, and others). But for now just return EIO. */
3783 /* Return NR_BYTES, not TODO, in case escape chars caused us to send
3784 fewer bytes than we'd planned. */
3788 /* Read memory data directly from the remote machine.
3789 This does not use the data cache; the data cache uses this.
3790 MEMADDR is the address in the remote memory space.
3791 MYADDR is the address of the buffer in our space.
3792 LEN is the number of bytes.
3794 Returns number of bytes transferred, or 0 for error. */
3796 /* NOTE: cagney/1999-10-18: This function (and its siblings in other
3797 remote targets) shouldn't attempt to read the entire buffer.
3798 Instead it should read a single packet worth of data and then
3799 return the byte size of that packet to the caller. The caller (its
3800 caller and its callers caller ;-) already contains code for
3801 handling partial reads. */
3804 remote_read_bytes (CORE_ADDR memaddr
, char *myaddr
, int len
)
3807 int max_buf_size
; /* Max size of packet output buffer. */
3811 /* Create a buffer big enough for this packet. */
3812 max_buf_size
= get_memory_read_packet_size ();
3813 sizeof_buf
= max_buf_size
+ 1; /* Space for trailing NULL. */
3814 buf
= alloca (sizeof_buf
);
3823 todo
= min (len
, max_buf_size
/ 2); /* num bytes that will fit */
3825 /* construct "m"<memaddr>","<len>" */
3826 /* sprintf (buf, "m%lx,%x", (unsigned long) memaddr, todo); */
3827 memaddr
= remote_address_masked (memaddr
);
3830 p
+= hexnumstr (p
, (ULONGEST
) memaddr
);
3832 p
+= hexnumstr (p
, (ULONGEST
) todo
);
3836 getpkt (buf
, sizeof_buf
, 0);
3839 && isxdigit (buf
[1]) && isxdigit (buf
[2])
3842 /* There is no correspondance between what the remote
3843 protocol uses for errors and errno codes. We would like
3844 a cleaner way of representing errors (big enough to
3845 include errno codes, bfd_error codes, and others). But
3846 for now just return EIO. */
3851 /* Reply describes memory byte by byte,
3852 each byte encoded as two hex characters. */
3855 if ((i
= hex2bin (p
, myaddr
, todo
)) < todo
)
3857 /* Reply is short. This means that we were able to read
3858 only part of what we wanted to. */
3859 return i
+ (origlen
- len
);
3868 /* Read or write LEN bytes from inferior memory at MEMADDR,
3869 transferring to or from debugger address BUFFER. Write to inferior
3870 if SHOULD_WRITE is nonzero. Returns length of data written or
3871 read; 0 for error. TARGET is unused. */
3874 remote_xfer_memory (CORE_ADDR mem_addr
, char *buffer
, int mem_len
,
3875 int should_write
, struct mem_attrib
*attrib
,
3876 struct target_ops
*target
)
3878 CORE_ADDR targ_addr
;
3882 /* Should this be the selected frame? */
3883 gdbarch_remote_translate_xfer_address (current_gdbarch
,
3886 &targ_addr
, &targ_len
);
3891 res
= remote_write_bytes (targ_addr
, buffer
, targ_len
);
3893 res
= remote_read_bytes (targ_addr
, buffer
, targ_len
);
3899 remote_files_info (struct target_ops
*ignore
)
3901 puts_filtered ("Debugging a target over a serial line.\n");
3904 /* Stuff for dealing with the packets which are part of this protocol.
3905 See comment at top of file for details. */
3907 /* Read a single character from the remote end, masking it down to 7
3911 readchar (int timeout
)
3915 ch
= serial_readchar (remote_desc
, timeout
);
3920 switch ((enum serial_rc
) ch
)
3923 target_mourn_inferior ();
3924 error (_("Remote connection closed"));
3927 perror_with_name (_("Remote communication error"));
3929 case SERIAL_TIMEOUT
:
3935 /* Send the command in BUF to the remote machine, and read the reply
3936 into BUF. Report an error if we get an error reply. */
3939 remote_send (char *buf
,
3943 getpkt (buf
, sizeof_buf
, 0);
3946 error (_("Remote failure reply: %s"), buf
);
3949 /* Display a null-terminated packet on stdout, for debugging, using C
3953 print_packet (char *buf
)
3955 puts_filtered ("\"");
3956 fputstr_filtered (buf
, '"', gdb_stdout
);
3957 puts_filtered ("\"");
3963 return putpkt_binary (buf
, strlen (buf
));
3966 /* Send a packet to the remote machine, with error checking. The data
3967 of the packet is in BUF. The string in BUF can be at most
3968 (rs->remote_packet_size) - 5 to account for the $, # and checksum,
3969 and for a possible /0 if we are debugging (remote_debug) and want
3970 to print the sent packet as a string. */
3973 putpkt_binary (char *buf
, int cnt
)
3975 struct remote_state
*rs
= get_remote_state ();
3977 unsigned char csum
= 0;
3978 char *buf2
= alloca (cnt
+ 6);
3979 long sizeof_junkbuf
= (rs
->remote_packet_size
);
3980 char *junkbuf
= alloca (sizeof_junkbuf
);
3986 /* Copy the packet into buffer BUF2, encapsulating it
3987 and giving it a checksum. */
3992 for (i
= 0; i
< cnt
; i
++)
3998 *p
++ = tohex ((csum
>> 4) & 0xf);
3999 *p
++ = tohex (csum
& 0xf);
4001 /* Send it over and over until we get a positive ack. */
4005 int started_error_output
= 0;
4010 fprintf_unfiltered (gdb_stdlog
, "Sending packet: ");
4011 fputstrn_unfiltered (buf2
, p
- buf2
, 0, gdb_stdlog
);
4012 fprintf_unfiltered (gdb_stdlog
, "...");
4013 gdb_flush (gdb_stdlog
);
4015 if (serial_write (remote_desc
, buf2
, p
- buf2
))
4016 perror_with_name (_("putpkt: write failed"));
4018 /* Read until either a timeout occurs (-2) or '+' is read. */
4021 ch
= readchar (remote_timeout
);
4029 case SERIAL_TIMEOUT
:
4031 if (started_error_output
)
4033 putchar_unfiltered ('\n');
4034 started_error_output
= 0;
4043 fprintf_unfiltered (gdb_stdlog
, "Ack\n");
4047 fprintf_unfiltered (gdb_stdlog
, "Nak\n");
4048 case SERIAL_TIMEOUT
:
4052 break; /* Retransmit buffer. */
4056 fprintf_unfiltered (gdb_stdlog
,
4057 "Packet instead of Ack, ignoring it\n");
4058 /* It's probably an old response sent because an ACK
4059 was lost. Gobble up the packet and ack it so it
4060 doesn't get retransmitted when we resend this
4062 read_frame (junkbuf
, sizeof_junkbuf
);
4063 serial_write (remote_desc
, "+", 1);
4064 continue; /* Now, go look for +. */
4069 if (!started_error_output
)
4071 started_error_output
= 1;
4072 fprintf_unfiltered (gdb_stdlog
, "putpkt: Junk: ");
4074 fputc_unfiltered (ch
& 0177, gdb_stdlog
);
4078 break; /* Here to retransmit. */
4082 /* This is wrong. If doing a long backtrace, the user should be
4083 able to get out next time we call QUIT, without anything as
4084 violent as interrupt_query. If we want to provide a way out of
4085 here without getting to the next QUIT, it should be based on
4086 hitting ^C twice as in remote_wait. */
4096 /* Come here after finding the start of the frame. Collect the rest
4097 into BUF, verifying the checksum, length, and handling run-length
4098 compression. No more than sizeof_buf-1 characters are read so that
4099 the buffer can be NUL terminated.
4101 Returns -1 on error, number of characters in buffer (ignoring the
4102 trailing NULL) on success. (could be extended to return one of the
4103 SERIAL status indications). */
4106 read_frame (char *buf
,
4118 /* ASSERT (bc < sizeof_buf - 1) - space for trailing NULL. */
4119 c
= readchar (remote_timeout
);
4122 case SERIAL_TIMEOUT
:
4124 fputs_filtered ("Timeout in mid-packet, retrying\n", gdb_stdlog
);
4128 fputs_filtered ("Saw new packet start in middle of old one\n",
4130 return -1; /* Start a new packet, count retries. */
4133 unsigned char pktcsum
;
4139 check_0
= readchar (remote_timeout
);
4141 check_1
= readchar (remote_timeout
);
4143 if (check_0
== SERIAL_TIMEOUT
|| check_1
== SERIAL_TIMEOUT
)
4146 fputs_filtered ("Timeout in checksum, retrying\n",
4150 else if (check_0
< 0 || check_1
< 0)
4153 fputs_filtered ("Communication error in checksum\n",
4158 pktcsum
= (fromhex (check_0
) << 4) | fromhex (check_1
);
4159 if (csum
== pktcsum
)
4164 fprintf_filtered (gdb_stdlog
,
4165 "Bad checksum, sentsum=0x%x, csum=0x%x, buf=",
4167 fputs_filtered (buf
, gdb_stdlog
);
4168 fputs_filtered ("\n", gdb_stdlog
);
4170 /* Number of characters in buffer ignoring trailing
4174 case '*': /* Run length encoding. */
4179 c
= readchar (remote_timeout
);
4181 repeat
= c
- ' ' + 3; /* Compute repeat count. */
4183 /* The character before ``*'' is repeated. */
4185 if (repeat
> 0 && repeat
<= 255
4187 && bc
+ repeat
- 1 < sizeof_buf
- 1)
4189 memset (&buf
[bc
], buf
[bc
- 1], repeat
);
4195 printf_filtered (_("Repeat count %d too large for buffer: "),
4197 puts_filtered (buf
);
4198 puts_filtered ("\n");
4202 if (bc
< sizeof_buf
- 1)
4210 puts_filtered ("Remote packet too long: ");
4211 puts_filtered (buf
);
4212 puts_filtered ("\n");
4219 /* Read a packet from the remote machine, with error checking, and
4220 store it in BUF. If FOREVER, wait forever rather than timing out;
4221 this is used (in synchronous mode) to wait for a target that is is
4222 executing user code to stop. */
4223 /* FIXME: ezannoni 2000-02-01 this wrapper is necessary so that we
4224 don't have to change all the calls to getpkt to deal with the
4225 return value, because at the moment I don't know what the right
4226 thing to do it for those. */
4234 timed_out
= getpkt_sane (buf
, sizeof_buf
, forever
);
4238 /* Read a packet from the remote machine, with error checking, and
4239 store it in BUF. If FOREVER, wait forever rather than timing out;
4240 this is used (in synchronous mode) to wait for a target that is is
4241 executing user code to stop. If FOREVER == 0, this function is
4242 allowed to time out gracefully and return an indication of this to
4245 getpkt_sane (char *buf
,
4254 strcpy (buf
, "timeout");
4258 timeout
= watchdog
> 0 ? watchdog
: -1;
4262 timeout
= remote_timeout
;
4266 for (tries
= 1; tries
<= MAX_TRIES
; tries
++)
4268 /* This can loop forever if the remote side sends us characters
4269 continuously, but if it pauses, we'll get a zero from
4270 readchar because of timeout. Then we'll count that as a
4273 /* Note that we will only wait forever prior to the start of a
4274 packet. After that, we expect characters to arrive at a
4275 brisk pace. They should show up within remote_timeout
4280 c
= readchar (timeout
);
4282 if (c
== SERIAL_TIMEOUT
)
4284 if (forever
) /* Watchdog went off? Kill the target. */
4287 target_mourn_inferior ();
4288 error (_("Watchdog has expired. Target detached."));
4291 fputs_filtered ("Timed out.\n", gdb_stdlog
);
4297 /* We've found the start of a packet, now collect the data. */
4299 val
= read_frame (buf
, sizeof_buf
);
4305 fprintf_unfiltered (gdb_stdlog
, "Packet received: ");
4306 fputstr_unfiltered (buf
, 0, gdb_stdlog
);
4307 fprintf_unfiltered (gdb_stdlog
, "\n");
4309 serial_write (remote_desc
, "+", 1);
4313 /* Try the whole thing again. */
4315 serial_write (remote_desc
, "-", 1);
4318 /* We have tried hard enough, and just can't receive the packet.
4321 printf_unfiltered (_("Ignoring packet error, continuing...\n"));
4322 serial_write (remote_desc
, "+", 1);
4329 /* For some mysterious reason, wait_for_inferior calls kill instead of
4330 mourn after it gets TARGET_WAITKIND_SIGNALLED. Work around it. */
4334 target_mourn_inferior ();
4338 /* Use catch_errors so the user can quit from gdb even when we aren't on
4339 speaking terms with the remote system. */
4340 catch_errors ((catch_errors_ftype
*) putpkt
, "k", "", RETURN_MASK_ERROR
);
4342 /* Don't wait for it to die. I'm not really sure it matters whether
4343 we do or not. For the existing stubs, kill is a noop. */
4344 target_mourn_inferior ();
4347 /* Async version of remote_kill. */
4349 remote_async_kill (void)
4351 /* Unregister the file descriptor from the event loop. */
4352 if (target_is_async_p ())
4353 serial_async (remote_desc
, NULL
, 0);
4355 /* For some mysterious reason, wait_for_inferior calls kill instead of
4356 mourn after it gets TARGET_WAITKIND_SIGNALLED. Work around it. */
4360 target_mourn_inferior ();
4364 /* Use catch_errors so the user can quit from gdb even when we
4365 aren't on speaking terms with the remote system. */
4366 catch_errors ((catch_errors_ftype
*) putpkt
, "k", "", RETURN_MASK_ERROR
);
4368 /* Don't wait for it to die. I'm not really sure it matters whether
4369 we do or not. For the existing stubs, kill is a noop. */
4370 target_mourn_inferior ();
4376 remote_mourn_1 (&remote_ops
);
4380 remote_async_mourn (void)
4382 remote_mourn_1 (&remote_async_ops
);
4386 extended_remote_mourn (void)
4388 /* We do _not_ want to mourn the target like this; this will
4389 remove the extended remote target from the target stack,
4390 and the next time the user says "run" it'll fail.
4392 FIXME: What is the right thing to do here? */
4394 remote_mourn_1 (&extended_remote_ops
);
4398 /* Worker function for remote_mourn. */
4400 remote_mourn_1 (struct target_ops
*target
)
4402 unpush_target (target
);
4403 generic_mourn_inferior ();
4406 /* In the extended protocol we want to be able to do things like
4407 "run" and have them basically work as expected. So we need
4408 a special create_inferior function.
4410 FIXME: One day add support for changing the exec file
4411 we're debugging, arguments and an environment. */
4414 extended_remote_create_inferior (char *exec_file
, char *args
,
4415 char **env
, int from_tty
)
4417 /* Rip out the breakpoints; we'll reinsert them after restarting
4418 the remote server. */
4419 remove_breakpoints ();
4421 /* Now restart the remote server. */
4422 extended_remote_restart ();
4424 /* Now put the breakpoints back in. This way we're safe if the
4425 restart function works via a unix fork on the remote side. */
4426 insert_breakpoints ();
4428 /* Clean up from the last time we were running. */
4429 clear_proceed_status ();
4431 /* Let the remote process run. */
4432 proceed (-1, TARGET_SIGNAL_0
, 0);
4435 /* Async version of extended_remote_create_inferior. */
4437 extended_remote_async_create_inferior (char *exec_file
, char *args
,
4438 char **env
, int from_tty
)
4440 /* Rip out the breakpoints; we'll reinsert them after restarting
4441 the remote server. */
4442 remove_breakpoints ();
4444 /* If running asynchronously, register the target file descriptor
4445 with the event loop. */
4446 if (target_can_async_p ())
4447 target_async (inferior_event_handler
, 0);
4449 /* Now restart the remote server. */
4450 extended_remote_restart ();
4452 /* Now put the breakpoints back in. This way we're safe if the
4453 restart function works via a unix fork on the remote side. */
4454 insert_breakpoints ();
4456 /* Clean up from the last time we were running. */
4457 clear_proceed_status ();
4459 /* Let the remote process run. */
4460 proceed (-1, TARGET_SIGNAL_0
, 0);
4464 /* On some machines, e.g. 68k, we may use a different breakpoint
4465 instruction than other targets; in those use
4466 DEPRECATED_REMOTE_BREAKPOINT instead of just BREAKPOINT_FROM_PC.
4467 Also, bi-endian targets may define
4468 DEPRECATED_LITTLE_REMOTE_BREAKPOINT and
4469 DEPRECATED_BIG_REMOTE_BREAKPOINT. If none of these are defined, we
4470 just call the standard routines that are in mem-break.c. */
4472 /* NOTE: cagney/2003-06-08: This is silly. A remote and simulator
4473 target should use an identical BREAKPOINT_FROM_PC. As for native,
4474 the ARCH-OS-tdep.c code can override the default. */
4476 #if defined (DEPRECATED_LITTLE_REMOTE_BREAKPOINT) && defined (DEPRECATED_BIG_REMOTE_BREAKPOINT) && !defined(DEPRECATED_REMOTE_BREAKPOINT)
4477 #define DEPRECATED_REMOTE_BREAKPOINT
4480 #ifdef DEPRECATED_REMOTE_BREAKPOINT
4482 /* If the target isn't bi-endian, just pretend it is. */
4483 #if !defined (DEPRECATED_LITTLE_REMOTE_BREAKPOINT) && !defined (DEPRECATED_BIG_REMOTE_BREAKPOINT)
4484 #define DEPRECATED_LITTLE_REMOTE_BREAKPOINT DEPRECATED_REMOTE_BREAKPOINT
4485 #define DEPRECATED_BIG_REMOTE_BREAKPOINT DEPRECATED_REMOTE_BREAKPOINT
4488 static unsigned char big_break_insn
[] = DEPRECATED_BIG_REMOTE_BREAKPOINT
;
4489 static unsigned char little_break_insn
[] = DEPRECATED_LITTLE_REMOTE_BREAKPOINT
;
4491 #endif /* DEPRECATED_REMOTE_BREAKPOINT */
4493 /* Insert a breakpoint on targets that don't have any better
4494 breakpoint support. We read the contents of the target location
4495 and stash it, then overwrite it with a breakpoint instruction.
4496 ADDR is the target location in the target machine. CONTENTS_CACHE
4497 is a pointer to memory allocated for saving the target contents.
4498 It is guaranteed by the caller to be long enough to save the number
4499 of bytes returned by BREAKPOINT_FROM_PC. */
4502 remote_insert_breakpoint (CORE_ADDR addr
, bfd_byte
*contents_cache
)
4504 struct remote_state
*rs
= get_remote_state ();
4505 #ifdef DEPRECATED_REMOTE_BREAKPOINT
4510 /* Try the "Z" s/w breakpoint packet if it is not already disabled.
4511 If it succeeds, then set the support to PACKET_ENABLE. If it
4512 fails, and the user has explicitly requested the Z support then
4513 report an error, otherwise, mark it disabled and go on. */
4515 if (remote_protocol_Z
[Z_PACKET_SOFTWARE_BP
].support
!= PACKET_DISABLE
)
4517 char *buf
= alloca (rs
->remote_packet_size
);
4520 addr
= remote_address_masked (addr
);
4524 p
+= hexnumstr (p
, (ULONGEST
) addr
);
4525 BREAKPOINT_FROM_PC (&addr
, &bp_size
);
4526 sprintf (p
, ",%d", bp_size
);
4529 getpkt (buf
, (rs
->remote_packet_size
), 0);
4531 switch (packet_ok (buf
, &remote_protocol_Z
[Z_PACKET_SOFTWARE_BP
]))
4537 case PACKET_UNKNOWN
:
4542 #ifdef DEPRECATED_REMOTE_BREAKPOINT
4543 val
= target_read_memory (addr
, contents_cache
, sizeof big_break_insn
);
4547 if (TARGET_BYTE_ORDER
== BFD_ENDIAN_BIG
)
4548 val
= target_write_memory (addr
, (char *) big_break_insn
,
4549 sizeof big_break_insn
);
4551 val
= target_write_memory (addr
, (char *) little_break_insn
,
4552 sizeof little_break_insn
);
4557 return memory_insert_breakpoint (addr
, contents_cache
);
4558 #endif /* DEPRECATED_REMOTE_BREAKPOINT */
4562 remote_remove_breakpoint (CORE_ADDR addr
, bfd_byte
*contents_cache
)
4564 struct remote_state
*rs
= get_remote_state ();
4567 if (remote_protocol_Z
[Z_PACKET_SOFTWARE_BP
].support
!= PACKET_DISABLE
)
4569 char *buf
= alloca (rs
->remote_packet_size
);
4576 addr
= remote_address_masked (addr
);
4577 p
+= hexnumstr (p
, (ULONGEST
) addr
);
4578 BREAKPOINT_FROM_PC (&addr
, &bp_size
);
4579 sprintf (p
, ",%d", bp_size
);
4582 getpkt (buf
, (rs
->remote_packet_size
), 0);
4584 return (buf
[0] == 'E');
4587 #ifdef DEPRECATED_REMOTE_BREAKPOINT
4588 return target_write_memory (addr
, contents_cache
, sizeof big_break_insn
);
4590 return memory_remove_breakpoint (addr
, contents_cache
);
4591 #endif /* DEPRECATED_REMOTE_BREAKPOINT */
4595 watchpoint_to_Z_packet (int type
)
4609 internal_error (__FILE__
, __LINE__
,
4610 _("hw_bp_to_z: bad watchpoint type %d"), type
);
4615 remote_insert_watchpoint (CORE_ADDR addr
, int len
, int type
)
4617 struct remote_state
*rs
= get_remote_state ();
4618 char *buf
= alloca (rs
->remote_packet_size
);
4620 enum Z_packet_type packet
= watchpoint_to_Z_packet (type
);
4622 if (remote_protocol_Z
[packet
].support
== PACKET_DISABLE
)
4623 error (_("Can't set hardware watchpoints without the '%s' (%s) packet."),
4624 remote_protocol_Z
[packet
].name
,
4625 remote_protocol_Z
[packet
].title
);
4627 sprintf (buf
, "Z%x,", packet
);
4628 p
= strchr (buf
, '\0');
4629 addr
= remote_address_masked (addr
);
4630 p
+= hexnumstr (p
, (ULONGEST
) addr
);
4631 sprintf (p
, ",%x", len
);
4634 getpkt (buf
, (rs
->remote_packet_size
), 0);
4636 switch (packet_ok (buf
, &remote_protocol_Z
[packet
]))
4639 case PACKET_UNKNOWN
:
4644 internal_error (__FILE__
, __LINE__
,
4645 _("remote_insert_watchpoint: reached end of function"));
4650 remote_remove_watchpoint (CORE_ADDR addr
, int len
, int type
)
4652 struct remote_state
*rs
= get_remote_state ();
4653 char *buf
= alloca (rs
->remote_packet_size
);
4655 enum Z_packet_type packet
= watchpoint_to_Z_packet (type
);
4657 if (remote_protocol_Z
[packet
].support
== PACKET_DISABLE
)
4658 error (_("Can't clear hardware watchpoints without the '%s' (%s) packet."),
4659 remote_protocol_Z
[packet
].name
,
4660 remote_protocol_Z
[packet
].title
);
4662 sprintf (buf
, "z%x,", packet
);
4663 p
= strchr (buf
, '\0');
4664 addr
= remote_address_masked (addr
);
4665 p
+= hexnumstr (p
, (ULONGEST
) addr
);
4666 sprintf (p
, ",%x", len
);
4668 getpkt (buf
, (rs
->remote_packet_size
), 0);
4670 switch (packet_ok (buf
, &remote_protocol_Z
[packet
]))
4673 case PACKET_UNKNOWN
:
4678 internal_error (__FILE__
, __LINE__
,
4679 _("remote_remove_watchpoint: reached end of function"));
4683 int remote_hw_watchpoint_limit
= -1;
4684 int remote_hw_breakpoint_limit
= -1;
4687 remote_check_watch_resources (int type
, int cnt
, int ot
)
4689 if (type
== bp_hardware_breakpoint
)
4691 if (remote_hw_breakpoint_limit
== 0)
4693 else if (remote_hw_breakpoint_limit
< 0)
4695 else if (cnt
<= remote_hw_breakpoint_limit
)
4700 if (remote_hw_watchpoint_limit
== 0)
4702 else if (remote_hw_watchpoint_limit
< 0)
4706 else if (cnt
<= remote_hw_watchpoint_limit
)
4713 remote_stopped_by_watchpoint (void)
4715 return remote_stopped_by_watchpoint_p
;
4718 extern int stepped_after_stopped_by_watchpoint
;
4721 remote_stopped_data_address (struct target_ops
*target
, CORE_ADDR
*addr_p
)
4724 if (remote_stopped_by_watchpoint ()
4725 || stepped_after_stopped_by_watchpoint
)
4727 *addr_p
= remote_watch_data_address
;
4736 remote_insert_hw_breakpoint (CORE_ADDR addr
, char *shadow
)
4739 struct remote_state
*rs
= get_remote_state ();
4740 char *buf
= alloca (rs
->remote_packet_size
);
4743 /* The length field should be set to the size of a breakpoint
4746 BREAKPOINT_FROM_PC (&addr
, &len
);
4748 if (remote_protocol_Z
[Z_PACKET_HARDWARE_BP
].support
== PACKET_DISABLE
)
4749 error (_("Can't set hardware breakpoint without the '%s' (%s) packet."),
4750 remote_protocol_Z
[Z_PACKET_HARDWARE_BP
].name
,
4751 remote_protocol_Z
[Z_PACKET_HARDWARE_BP
].title
);
4757 addr
= remote_address_masked (addr
);
4758 p
+= hexnumstr (p
, (ULONGEST
) addr
);
4759 sprintf (p
, ",%x", len
);
4762 getpkt (buf
, (rs
->remote_packet_size
), 0);
4764 switch (packet_ok (buf
, &remote_protocol_Z
[Z_PACKET_HARDWARE_BP
]))
4767 case PACKET_UNKNOWN
:
4772 internal_error (__FILE__
, __LINE__
,
4773 _("remote_insert_hw_breakpoint: reached end of function"));
4778 remote_remove_hw_breakpoint (CORE_ADDR addr
, char *shadow
)
4781 struct remote_state
*rs
= get_remote_state ();
4782 char *buf
= alloca (rs
->remote_packet_size
);
4785 /* The length field should be set to the size of a breakpoint
4788 BREAKPOINT_FROM_PC (&addr
, &len
);
4790 if (remote_protocol_Z
[Z_PACKET_HARDWARE_BP
].support
== PACKET_DISABLE
)
4791 error (_("Can't clear hardware breakpoint without the '%s' (%s) packet."),
4792 remote_protocol_Z
[Z_PACKET_HARDWARE_BP
].name
,
4793 remote_protocol_Z
[Z_PACKET_HARDWARE_BP
].title
);
4799 addr
= remote_address_masked (addr
);
4800 p
+= hexnumstr (p
, (ULONGEST
) addr
);
4801 sprintf (p
, ",%x", len
);
4804 getpkt (buf
, (rs
->remote_packet_size
), 0);
4806 switch (packet_ok (buf
, &remote_protocol_Z
[Z_PACKET_HARDWARE_BP
]))
4809 case PACKET_UNKNOWN
:
4814 internal_error (__FILE__
, __LINE__
,
4815 _("remote_remove_hw_breakpoint: reached end of function"));
4818 /* Some targets are only capable of doing downloads, and afterwards
4819 they switch to the remote serial protocol. This function provides
4820 a clean way to get from the download target to the remote target.
4821 It's basically just a wrapper so that we don't have to expose any
4822 of the internal workings of remote.c.
4824 Prior to calling this routine, you should shutdown the current
4825 target code, else you will get the "A program is being debugged
4826 already..." message. Usually a call to pop_target() suffices. */
4829 push_remote_target (char *name
, int from_tty
)
4831 printf_filtered (_("Switching to remote protocol\n"));
4832 remote_open (name
, from_tty
);
4835 /* Table used by the crc32 function to calcuate the checksum. */
4837 static unsigned long crc32_table
[256] =
4840 static unsigned long
4841 crc32 (unsigned char *buf
, int len
, unsigned int crc
)
4843 if (!crc32_table
[1])
4845 /* Initialize the CRC table and the decoding table. */
4849 for (i
= 0; i
< 256; i
++)
4851 for (c
= i
<< 24, j
= 8; j
> 0; --j
)
4852 c
= c
& 0x80000000 ? (c
<< 1) ^ 0x04c11db7 : (c
<< 1);
4859 crc
= (crc
<< 8) ^ crc32_table
[((crc
>> 24) ^ *buf
) & 255];
4865 /* compare-sections command
4867 With no arguments, compares each loadable section in the exec bfd
4868 with the same memory range on the target, and reports mismatches.
4869 Useful for verifying the image on the target against the exec file.
4870 Depends on the target understanding the new "qCRC:" request. */
4872 /* FIXME: cagney/1999-10-26: This command should be broken down into a
4873 target method (target verify memory) and generic version of the
4874 actual command. This will allow other high-level code (especially
4875 generic_load()) to make use of this target functionality. */
4878 compare_sections_command (char *args
, int from_tty
)
4880 struct remote_state
*rs
= get_remote_state ();
4882 unsigned long host_crc
, target_crc
;
4883 extern bfd
*exec_bfd
;
4884 struct cleanup
*old_chain
;
4887 const char *sectname
;
4888 char *buf
= alloca (rs
->remote_packet_size
);
4895 error (_("command cannot be used without an exec file"));
4896 if (!current_target
.to_shortname
||
4897 strcmp (current_target
.to_shortname
, "remote") != 0)
4898 error (_("command can only be used with remote target"));
4900 for (s
= exec_bfd
->sections
; s
; s
= s
->next
)
4902 if (!(s
->flags
& SEC_LOAD
))
4903 continue; /* skip non-loadable section */
4905 size
= bfd_get_section_size (s
);
4907 continue; /* skip zero-length section */
4909 sectname
= bfd_get_section_name (exec_bfd
, s
);
4910 if (args
&& strcmp (args
, sectname
) != 0)
4911 continue; /* not the section selected by user */
4913 matched
= 1; /* do this section */
4915 /* FIXME: assumes lma can fit into long. */
4916 sprintf (buf
, "qCRC:%lx,%lx", (long) lma
, (long) size
);
4919 /* Be clever; compute the host_crc before waiting for target
4921 sectdata
= xmalloc (size
);
4922 old_chain
= make_cleanup (xfree
, sectdata
);
4923 bfd_get_section_contents (exec_bfd
, s
, sectdata
, 0, size
);
4924 host_crc
= crc32 ((unsigned char *) sectdata
, size
, 0xffffffff);
4926 getpkt (buf
, (rs
->remote_packet_size
), 0);
4928 error (_("target memory fault, section %s, range 0x%s -- 0x%s"),
4929 sectname
, paddr (lma
), paddr (lma
+ size
));
4931 error (_("remote target does not support this operation"));
4933 for (target_crc
= 0, tmp
= &buf
[1]; *tmp
; tmp
++)
4934 target_crc
= target_crc
* 16 + fromhex (*tmp
);
4936 printf_filtered ("Section %s, range 0x%s -- 0x%s: ",
4937 sectname
, paddr (lma
), paddr (lma
+ size
));
4938 if (host_crc
== target_crc
)
4939 printf_filtered ("matched.\n");
4942 printf_filtered ("MIS-MATCHED!\n");
4946 do_cleanups (old_chain
);
4949 warning (_("One or more sections of the remote executable does not match\n\
4950 the loaded file\n"));
4951 if (args
&& !matched
)
4952 printf_filtered (_("No loaded section named '%s'.\n"), args
);
4956 remote_xfer_partial (struct target_ops
*ops
, enum target_object object
,
4957 const char *annex
, void *readbuf
, const void *writebuf
,
4958 ULONGEST offset
, LONGEST len
)
4960 struct remote_state
*rs
= get_remote_state ();
4962 char *buf2
= alloca (rs
->remote_packet_size
);
4963 char *p2
= &buf2
[0];
4966 /* Handle memory using remote_xfer_memory. */
4967 if (object
== TARGET_OBJECT_MEMORY
)
4972 if (writebuf
!= NULL
)
4974 void *buffer
= xmalloc (len
);
4975 struct cleanup
*cleanup
= make_cleanup (xfree
, buffer
);
4976 memcpy (buffer
, writebuf
, len
);
4977 xfered
= remote_xfer_memory (offset
, buffer
, len
, 1, NULL
, ops
);
4978 do_cleanups (cleanup
);
4981 xfered
= remote_xfer_memory (offset
, readbuf
, len
, 0, NULL
, ops
);
4985 else if (xfered
== 0 && errno
== 0)
4991 /* Only handle reads. */
4992 if (writebuf
!= NULL
|| readbuf
== NULL
)
4995 /* Map pre-existing objects onto letters. DO NOT do this for new
4996 objects!!! Instead specify new query packets. */
4999 case TARGET_OBJECT_KOD
:
5002 case TARGET_OBJECT_AVR
:
5006 case TARGET_OBJECT_AUXV
:
5007 if (remote_protocol_qPart_auxv
.support
!= PACKET_DISABLE
)
5009 unsigned int total
= 0;
5012 LONGEST n
= min ((rs
->remote_packet_size
- 2) / 2, len
);
5013 snprintf (buf2
, rs
->remote_packet_size
,
5014 "qPart:auxv:read::%s,%s",
5015 phex_nz (offset
, sizeof offset
),
5016 phex_nz (n
, sizeof n
));
5019 return total
> 0 ? total
: i
;
5021 getpkt (buf2
, rs
->remote_packet_size
, 0);
5022 if (packet_ok (buf2
, &remote_protocol_qPart_auxv
) != PACKET_OK
)
5023 return total
> 0 ? total
: -1;
5024 if (buf2
[0] == 'O' && buf2
[1] == 'K' && buf2
[2] == '\0')
5025 break; /* Got EOF indicator. */
5026 /* Got some data. */
5027 i
= hex2bin (buf2
, readbuf
, len
);
5030 readbuf
= (void *) ((char *) readbuf
+ i
);
5044 /* Note: a zero OFFSET and LEN can be used to query the minimum
5046 if (offset
== 0 && len
== 0)
5047 return (rs
->remote_packet_size
);
5048 /* Minimum outbuf size is (rs->remote_packet_size) - if bufsiz is
5049 not large enough let the caller. */
5050 if (len
< (rs
->remote_packet_size
))
5052 len
= rs
->remote_packet_size
;
5054 /* Except for querying the minimum buffer size, target must be open. */
5056 error (_("remote query is only available after target open"));
5058 gdb_assert (annex
!= NULL
);
5059 gdb_assert (readbuf
!= NULL
);
5064 /* We used one buffer char for the remote protocol q command and
5065 another for the query type. As the remote protocol encapsulation
5066 uses 4 chars plus one extra in case we are debugging
5067 (remote_debug), we have PBUFZIZ - 7 left to pack the query
5070 while (annex
[i
] && (i
< ((rs
->remote_packet_size
) - 8)))
5072 /* Bad caller may have sent forbidden characters. */
5073 gdb_assert (isprint (annex
[i
]) && annex
[i
] != '$' && annex
[i
] != '#');
5078 gdb_assert (annex
[i
] == '\0');
5084 getpkt (readbuf
, len
, 0);
5086 return strlen (readbuf
);
5090 remote_rcmd (char *command
,
5091 struct ui_file
*outbuf
)
5093 struct remote_state
*rs
= get_remote_state ();
5094 char *buf
= alloca (rs
->remote_packet_size
);
5098 error (_("remote rcmd is only available after target open"));
5100 /* Send a NULL command across as an empty command. */
5101 if (command
== NULL
)
5104 /* The query prefix. */
5105 strcpy (buf
, "qRcmd,");
5106 p
= strchr (buf
, '\0');
5108 if ((strlen (buf
) + strlen (command
) * 2 + 8/*misc*/) > (rs
->remote_packet_size
))
5109 error (_("\"monitor\" command ``%s'' is too long."), command
);
5111 /* Encode the actual command. */
5112 bin2hex (command
, p
, 0);
5114 if (putpkt (buf
) < 0)
5115 error (_("Communication problem with target."));
5117 /* get/display the response */
5120 /* XXX - see also tracepoint.c:remote_get_noisy_reply(). */
5122 getpkt (buf
, (rs
->remote_packet_size
), 0);
5124 error (_("Target does not support this command."));
5125 if (buf
[0] == 'O' && buf
[1] != 'K')
5127 remote_console_output (buf
+ 1); /* 'O' message from stub. */
5130 if (strcmp (buf
, "OK") == 0)
5132 if (strlen (buf
) == 3 && buf
[0] == 'E'
5133 && isdigit (buf
[1]) && isdigit (buf
[2]))
5135 error (_("Protocol error with Rcmd"));
5137 for (p
= buf
; p
[0] != '\0' && p
[1] != '\0'; p
+= 2)
5139 char c
= (fromhex (p
[0]) << 4) + fromhex (p
[1]);
5140 fputc_unfiltered (c
, outbuf
);
5147 packet_command (char *args
, int from_tty
)
5149 struct remote_state
*rs
= get_remote_state ();
5150 char *buf
= alloca (rs
->remote_packet_size
);
5153 error (_("command can only be used with remote target"));
5156 error (_("remote-packet command requires packet text as argument"));
5158 puts_filtered ("sending: ");
5159 print_packet (args
);
5160 puts_filtered ("\n");
5163 getpkt (buf
, (rs
->remote_packet_size
), 0);
5164 puts_filtered ("received: ");
5166 puts_filtered ("\n");
5170 /* --------- UNIT_TEST for THREAD oriented PACKETS ------------------- */
5172 static void display_thread_info (struct gdb_ext_thread_info
*info
);
5174 static void threadset_test_cmd (char *cmd
, int tty
);
5176 static void threadalive_test (char *cmd
, int tty
);
5178 static void threadlist_test_cmd (char *cmd
, int tty
);
5180 int get_and_display_threadinfo (threadref
*ref
);
5182 static void threadinfo_test_cmd (char *cmd
, int tty
);
5184 static int thread_display_step (threadref
*ref
, void *context
);
5186 static void threadlist_update_test_cmd (char *cmd
, int tty
);
5188 static void init_remote_threadtests (void);
5190 #define SAMPLE_THREAD 0x05060708 /* Truncated 64 bit threadid. */
5193 threadset_test_cmd (char *cmd
, int tty
)
5195 int sample_thread
= SAMPLE_THREAD
;
5197 printf_filtered (_("Remote threadset test\n"));
5198 set_thread (sample_thread
, 1);
5203 threadalive_test (char *cmd
, int tty
)
5205 int sample_thread
= SAMPLE_THREAD
;
5207 if (remote_thread_alive (pid_to_ptid (sample_thread
)))
5208 printf_filtered ("PASS: Thread alive test\n");
5210 printf_filtered ("FAIL: Thread alive test\n");
5213 void output_threadid (char *title
, threadref
*ref
);
5216 output_threadid (char *title
, threadref
*ref
)
5220 pack_threadid (&hexid
[0], ref
); /* Convert threead id into hex. */
5222 printf_filtered ("%s %s\n", title
, (&hexid
[0]));
5226 threadlist_test_cmd (char *cmd
, int tty
)
5229 threadref nextthread
;
5230 int done
, result_count
;
5231 threadref threadlist
[3];
5233 printf_filtered ("Remote Threadlist test\n");
5234 if (!remote_get_threadlist (startflag
, &nextthread
, 3, &done
,
5235 &result_count
, &threadlist
[0]))
5236 printf_filtered ("FAIL: threadlist test\n");
5239 threadref
*scan
= threadlist
;
5240 threadref
*limit
= scan
+ result_count
;
5242 while (scan
< limit
)
5243 output_threadid (" thread ", scan
++);
5248 display_thread_info (struct gdb_ext_thread_info
*info
)
5250 output_threadid ("Threadid: ", &info
->threadid
);
5251 printf_filtered ("Name: %s\n ", info
->shortname
);
5252 printf_filtered ("State: %s\n", info
->display
);
5253 printf_filtered ("other: %s\n\n", info
->more_display
);
5257 get_and_display_threadinfo (threadref
*ref
)
5261 struct gdb_ext_thread_info threadinfo
;
5263 set
= TAG_THREADID
| TAG_EXISTS
| TAG_THREADNAME
5264 | TAG_MOREDISPLAY
| TAG_DISPLAY
;
5265 if (0 != (result
= remote_get_threadinfo (ref
, set
, &threadinfo
)))
5266 display_thread_info (&threadinfo
);
5271 threadinfo_test_cmd (char *cmd
, int tty
)
5273 int athread
= SAMPLE_THREAD
;
5277 int_to_threadref (&thread
, athread
);
5278 printf_filtered ("Remote Threadinfo test\n");
5279 if (!get_and_display_threadinfo (&thread
))
5280 printf_filtered ("FAIL cannot get thread info\n");
5284 thread_display_step (threadref
*ref
, void *context
)
5286 /* output_threadid(" threadstep ",ref); *//* simple test */
5287 return get_and_display_threadinfo (ref
);
5291 threadlist_update_test_cmd (char *cmd
, int tty
)
5293 printf_filtered ("Remote Threadlist update test\n");
5294 remote_threadlist_iterator (thread_display_step
, 0, CRAZY_MAX_THREADS
);
5298 init_remote_threadtests (void)
5300 add_com ("tlist", class_obscure
, threadlist_test_cmd
, _("\
5301 Fetch and print the remote list of thread identifiers, one pkt only"));
5302 add_com ("tinfo", class_obscure
, threadinfo_test_cmd
,
5303 _("Fetch and display info about one thread"));
5304 add_com ("tset", class_obscure
, threadset_test_cmd
,
5305 _("Test setting to a different thread"));
5306 add_com ("tupd", class_obscure
, threadlist_update_test_cmd
,
5307 _("Iterate through updating all remote thread info"));
5308 add_com ("talive", class_obscure
, threadalive_test
,
5309 _(" Remote thread alive test "));
5314 /* Convert a thread ID to a string. Returns the string in a static
5318 remote_pid_to_str (ptid_t ptid
)
5320 static char buf
[32];
5323 size
= snprintf (buf
, sizeof buf
, "thread %d", ptid_get_pid (ptid
));
5324 gdb_assert (size
< sizeof buf
);
5328 /* Get the address of the thread local variable in OBJFILE which is
5329 stored at OFFSET within the thread local storage for thread PTID. */
5332 remote_get_thread_local_address (ptid_t ptid
, CORE_ADDR lm
, CORE_ADDR offset
)
5334 if (remote_protocol_qGetTLSAddr
.support
!= PACKET_DISABLE
)
5336 struct remote_state
*rs
= get_remote_state ();
5337 char *buf
= alloca (rs
->remote_packet_size
);
5339 enum packet_result result
;
5341 strcpy (p
, "qGetTLSAddr:");
5343 p
+= hexnumstr (p
, PIDGET (ptid
));
5345 p
+= hexnumstr (p
, offset
);
5347 p
+= hexnumstr (p
, lm
);
5351 getpkt (buf
, rs
->remote_packet_size
, 0);
5352 result
= packet_ok (buf
, &remote_protocol_qGetTLSAddr
);
5353 if (result
== PACKET_OK
)
5357 unpack_varlen_hex (buf
, &result
);
5360 else if (result
== PACKET_UNKNOWN
)
5361 throw_error (TLS_GENERIC_ERROR
,
5362 _("Remote target doesn't support qGetTLSAddr packet"));
5364 throw_error (TLS_GENERIC_ERROR
,
5365 _("Remote target failed to process qGetTLSAddr request"));
5368 throw_error (TLS_GENERIC_ERROR
,
5369 _("TLS not supported or disabled on this target"));
5375 init_remote_ops (void)
5377 remote_ops
.to_shortname
= "remote";
5378 remote_ops
.to_longname
= "Remote serial target in gdb-specific protocol";
5380 "Use a remote computer via a serial line, using a gdb-specific protocol.\n\
5381 Specify the serial device it is connected to\n\
5382 (e.g. /dev/ttyS0, /dev/ttya, COM1, etc.).";
5383 remote_ops
.to_open
= remote_open
;
5384 remote_ops
.to_close
= remote_close
;
5385 remote_ops
.to_detach
= remote_detach
;
5386 remote_ops
.to_disconnect
= remote_disconnect
;
5387 remote_ops
.to_resume
= remote_resume
;
5388 remote_ops
.to_wait
= remote_wait
;
5389 remote_ops
.to_fetch_registers
= remote_fetch_registers
;
5390 remote_ops
.to_store_registers
= remote_store_registers
;
5391 remote_ops
.to_prepare_to_store
= remote_prepare_to_store
;
5392 remote_ops
.deprecated_xfer_memory
= remote_xfer_memory
;
5393 remote_ops
.to_files_info
= remote_files_info
;
5394 remote_ops
.to_insert_breakpoint
= remote_insert_breakpoint
;
5395 remote_ops
.to_remove_breakpoint
= remote_remove_breakpoint
;
5396 remote_ops
.to_stopped_by_watchpoint
= remote_stopped_by_watchpoint
;
5397 remote_ops
.to_stopped_data_address
= remote_stopped_data_address
;
5398 remote_ops
.to_can_use_hw_breakpoint
= remote_check_watch_resources
;
5399 remote_ops
.to_insert_hw_breakpoint
= remote_insert_hw_breakpoint
;
5400 remote_ops
.to_remove_hw_breakpoint
= remote_remove_hw_breakpoint
;
5401 remote_ops
.to_insert_watchpoint
= remote_insert_watchpoint
;
5402 remote_ops
.to_remove_watchpoint
= remote_remove_watchpoint
;
5403 remote_ops
.to_kill
= remote_kill
;
5404 remote_ops
.to_load
= generic_load
;
5405 remote_ops
.to_mourn_inferior
= remote_mourn
;
5406 remote_ops
.to_thread_alive
= remote_thread_alive
;
5407 remote_ops
.to_find_new_threads
= remote_threads_info
;
5408 remote_ops
.to_pid_to_str
= remote_pid_to_str
;
5409 remote_ops
.to_extra_thread_info
= remote_threads_extra_info
;
5410 remote_ops
.to_stop
= remote_stop
;
5411 remote_ops
.to_xfer_partial
= remote_xfer_partial
;
5412 remote_ops
.to_rcmd
= remote_rcmd
;
5413 remote_ops
.to_get_thread_local_address
= remote_get_thread_local_address
;
5414 remote_ops
.to_stratum
= process_stratum
;
5415 remote_ops
.to_has_all_memory
= 1;
5416 remote_ops
.to_has_memory
= 1;
5417 remote_ops
.to_has_stack
= 1;
5418 remote_ops
.to_has_registers
= 1;
5419 remote_ops
.to_has_execution
= 1;
5420 remote_ops
.to_has_thread_control
= tc_schedlock
; /* can lock scheduler */
5421 remote_ops
.to_magic
= OPS_MAGIC
;
5424 /* Set up the extended remote vector by making a copy of the standard
5425 remote vector and adding to it. */
5428 init_extended_remote_ops (void)
5430 extended_remote_ops
= remote_ops
;
5432 extended_remote_ops
.to_shortname
= "extended-remote";
5433 extended_remote_ops
.to_longname
=
5434 "Extended remote serial target in gdb-specific protocol";
5435 extended_remote_ops
.to_doc
=
5436 "Use a remote computer via a serial line, using a gdb-specific protocol.\n\
5437 Specify the serial device it is connected to (e.g. /dev/ttya).",
5438 extended_remote_ops
.to_open
= extended_remote_open
;
5439 extended_remote_ops
.to_create_inferior
= extended_remote_create_inferior
;
5440 extended_remote_ops
.to_mourn_inferior
= extended_remote_mourn
;
5444 remote_can_async_p (void)
5446 /* We're async whenever the serial device is. */
5447 return (current_target
.to_async_mask_value
) && serial_can_async_p (remote_desc
);
5451 remote_is_async_p (void)
5453 /* We're async whenever the serial device is. */
5454 return (current_target
.to_async_mask_value
) && serial_is_async_p (remote_desc
);
5457 /* Pass the SERIAL event on and up to the client. One day this code
5458 will be able to delay notifying the client of an event until the
5459 point where an entire packet has been received. */
5461 static void (*async_client_callback
) (enum inferior_event_type event_type
,
5463 static void *async_client_context
;
5464 static serial_event_ftype remote_async_serial_handler
;
5467 remote_async_serial_handler (struct serial
*scb
, void *context
)
5469 /* Don't propogate error information up to the client. Instead let
5470 the client find out about the error by querying the target. */
5471 async_client_callback (INF_REG_EVENT
, async_client_context
);
5475 remote_async (void (*callback
) (enum inferior_event_type event_type
,
5476 void *context
), void *context
)
5478 if (current_target
.to_async_mask_value
== 0)
5479 internal_error (__FILE__
, __LINE__
,
5480 _("Calling remote_async when async is masked"));
5482 if (callback
!= NULL
)
5484 serial_async (remote_desc
, remote_async_serial_handler
, NULL
);
5485 async_client_callback
= callback
;
5486 async_client_context
= context
;
5489 serial_async (remote_desc
, NULL
, NULL
);
5492 /* Target async and target extended-async.
5494 This are temporary targets, until it is all tested. Eventually
5495 async support will be incorporated int the usual 'remote'
5499 init_remote_async_ops (void)
5501 remote_async_ops
.to_shortname
= "async";
5502 remote_async_ops
.to_longname
=
5503 "Remote serial target in async version of the gdb-specific protocol";
5504 remote_async_ops
.to_doc
=
5505 "Use a remote computer via a serial line, using a gdb-specific protocol.\n\
5506 Specify the serial device it is connected to (e.g. /dev/ttya).";
5507 remote_async_ops
.to_open
= remote_async_open
;
5508 remote_async_ops
.to_close
= remote_close
;
5509 remote_async_ops
.to_detach
= remote_detach
;
5510 remote_async_ops
.to_disconnect
= remote_disconnect
;
5511 remote_async_ops
.to_resume
= remote_async_resume
;
5512 remote_async_ops
.to_wait
= remote_async_wait
;
5513 remote_async_ops
.to_fetch_registers
= remote_fetch_registers
;
5514 remote_async_ops
.to_store_registers
= remote_store_registers
;
5515 remote_async_ops
.to_prepare_to_store
= remote_prepare_to_store
;
5516 remote_async_ops
.deprecated_xfer_memory
= remote_xfer_memory
;
5517 remote_async_ops
.to_files_info
= remote_files_info
;
5518 remote_async_ops
.to_insert_breakpoint
= remote_insert_breakpoint
;
5519 remote_async_ops
.to_remove_breakpoint
= remote_remove_breakpoint
;
5520 remote_async_ops
.to_can_use_hw_breakpoint
= remote_check_watch_resources
;
5521 remote_async_ops
.to_insert_hw_breakpoint
= remote_insert_hw_breakpoint
;
5522 remote_async_ops
.to_remove_hw_breakpoint
= remote_remove_hw_breakpoint
;
5523 remote_async_ops
.to_insert_watchpoint
= remote_insert_watchpoint
;
5524 remote_async_ops
.to_remove_watchpoint
= remote_remove_watchpoint
;
5525 remote_async_ops
.to_stopped_by_watchpoint
= remote_stopped_by_watchpoint
;
5526 remote_async_ops
.to_stopped_data_address
= remote_stopped_data_address
;
5527 remote_async_ops
.to_terminal_inferior
= remote_async_terminal_inferior
;
5528 remote_async_ops
.to_terminal_ours
= remote_async_terminal_ours
;
5529 remote_async_ops
.to_kill
= remote_async_kill
;
5530 remote_async_ops
.to_load
= generic_load
;
5531 remote_async_ops
.to_mourn_inferior
= remote_async_mourn
;
5532 remote_async_ops
.to_thread_alive
= remote_thread_alive
;
5533 remote_async_ops
.to_find_new_threads
= remote_threads_info
;
5534 remote_async_ops
.to_pid_to_str
= remote_pid_to_str
;
5535 remote_async_ops
.to_extra_thread_info
= remote_threads_extra_info
;
5536 remote_async_ops
.to_stop
= remote_stop
;
5537 remote_async_ops
.to_xfer_partial
= remote_xfer_partial
;
5538 remote_async_ops
.to_rcmd
= remote_rcmd
;
5539 remote_async_ops
.to_stratum
= process_stratum
;
5540 remote_async_ops
.to_has_all_memory
= 1;
5541 remote_async_ops
.to_has_memory
= 1;
5542 remote_async_ops
.to_has_stack
= 1;
5543 remote_async_ops
.to_has_registers
= 1;
5544 remote_async_ops
.to_has_execution
= 1;
5545 remote_async_ops
.to_has_thread_control
= tc_schedlock
; /* can lock scheduler */
5546 remote_async_ops
.to_can_async_p
= remote_can_async_p
;
5547 remote_async_ops
.to_is_async_p
= remote_is_async_p
;
5548 remote_async_ops
.to_async
= remote_async
;
5549 remote_async_ops
.to_async_mask_value
= 1;
5550 remote_async_ops
.to_magic
= OPS_MAGIC
;
5553 /* Set up the async extended remote vector by making a copy of the standard
5554 remote vector and adding to it. */
5557 init_extended_async_remote_ops (void)
5559 extended_async_remote_ops
= remote_async_ops
;
5561 extended_async_remote_ops
.to_shortname
= "extended-async";
5562 extended_async_remote_ops
.to_longname
=
5563 "Extended remote serial target in async gdb-specific protocol";
5564 extended_async_remote_ops
.to_doc
=
5565 "Use a remote computer via a serial line, using an async gdb-specific protocol.\n\
5566 Specify the serial device it is connected to (e.g. /dev/ttya).",
5567 extended_async_remote_ops
.to_open
= extended_remote_async_open
;
5568 extended_async_remote_ops
.to_create_inferior
= extended_remote_async_create_inferior
;
5569 extended_async_remote_ops
.to_mourn_inferior
= extended_remote_mourn
;
5573 set_remote_cmd (char *args
, int from_tty
)
5578 show_remote_cmd (char *args
, int from_tty
)
5580 /* FIXME: cagney/2002-06-15: This function should iterate over
5581 remote_show_cmdlist for a list of sub commands to show. */
5582 show_remote_protocol_Z_packet_cmd (gdb_stdout
, from_tty
, NULL
, NULL
);
5583 show_remote_protocol_P_packet_cmd (gdb_stdout
, from_tty
, NULL
, NULL
);
5584 show_remote_protocol_p_packet_cmd (gdb_stdout
, from_tty
, NULL
, NULL
);
5585 show_remote_protocol_qSymbol_packet_cmd (gdb_stdout
, from_tty
, NULL
, NULL
);
5586 show_remote_protocol_vcont_packet_cmd (gdb_stdout
, from_tty
, NULL
, NULL
);
5587 show_remote_protocol_binary_download_cmd (gdb_stdout
, from_tty
, NULL
, NULL
);
5588 show_remote_protocol_qPart_auxv_packet_cmd (gdb_stdout
, from_tty
, NULL
, NULL
);
5589 show_remote_protocol_qGetTLSAddr_packet_cmd (gdb_stdout
, from_tty
, NULL
, NULL
);
5593 build_remote_gdbarch_data (void)
5595 remote_address_size
= TARGET_ADDR_BIT
;
5598 /* Saved pointer to previous owner of the new_objfile event. */
5599 static void (*remote_new_objfile_chain
) (struct objfile
*);
5601 /* Function to be called whenever a new objfile (shlib) is detected. */
5603 remote_new_objfile (struct objfile
*objfile
)
5605 if (remote_desc
!= 0) /* Have a remote connection. */
5607 remote_check_symbols (objfile
);
5609 /* Call predecessor on chain, if any. */
5610 if (remote_new_objfile_chain
!= 0 &&
5612 remote_new_objfile_chain (objfile
);
5616 _initialize_remote (void)
5618 static struct cmd_list_element
*remote_set_cmdlist
;
5619 static struct cmd_list_element
*remote_show_cmdlist
;
5621 /* architecture specific data */
5622 remote_gdbarch_data_handle
=
5623 gdbarch_data_register_post_init (init_remote_state
);
5625 /* Old tacky stuff. NOTE: This comes after the remote protocol so
5626 that the remote protocol has been initialized. */
5627 DEPRECATED_REGISTER_GDBARCH_SWAP (remote_address_size
);
5628 deprecated_register_gdbarch_swap (NULL
, 0, build_remote_gdbarch_data
);
5631 add_target (&remote_ops
);
5633 init_extended_remote_ops ();
5634 add_target (&extended_remote_ops
);
5636 init_remote_async_ops ();
5637 add_target (&remote_async_ops
);
5639 init_extended_async_remote_ops ();
5640 add_target (&extended_async_remote_ops
);
5642 /* Hook into new objfile notification. */
5643 remote_new_objfile_chain
= deprecated_target_new_objfile_hook
;
5644 deprecated_target_new_objfile_hook
= remote_new_objfile
;
5647 init_remote_threadtests ();
5650 /* set/show remote ... */
5652 add_prefix_cmd ("remote", class_maintenance
, set_remote_cmd
, _("\
5653 Remote protocol specific variables\n\
5654 Configure various remote-protocol specific variables such as\n\
5655 the packets being used"),
5656 &remote_set_cmdlist
, "set remote ",
5657 0 /* allow-unknown */, &setlist
);
5658 add_prefix_cmd ("remote", class_maintenance
, show_remote_cmd
, _("\
5659 Remote protocol specific variables\n\
5660 Configure various remote-protocol specific variables such as\n\
5661 the packets being used"),
5662 &remote_show_cmdlist
, "show remote ",
5663 0 /* allow-unknown */, &showlist
);
5665 add_cmd ("compare-sections", class_obscure
, compare_sections_command
, _("\
5666 Compare section data on target to the exec file.\n\
5667 Argument is a single section name (default: all loaded sections)."),
5670 add_cmd ("packet", class_maintenance
, packet_command
, _("\
5671 Send an arbitrary packet to a remote target.\n\
5672 maintenance packet TEXT\n\
5673 If GDB is talking to an inferior via the GDB serial protocol, then\n\
5674 this command sends the string TEXT to the inferior, and displays the\n\
5675 response packet. GDB supplies the initial `$' character, and the\n\
5676 terminating `#' character and checksum."),
5679 add_setshow_boolean_cmd ("remotebreak", no_class
, &remote_break
, _("\
5680 Set whether to send break if interrupted."), _("\
5681 Show whether to send break if interrupted."), _("\
5682 If set, a break, instead of a cntrl-c, is sent to the remote target."),
5683 NULL
, NULL
, /* FIXME: i18n: Whether to send break if interrupted is %s. */
5684 &setlist
, &showlist
);
5686 /* Install commands for configuring memory read/write packets. */
5688 add_cmd ("remotewritesize", no_class
, set_memory_write_packet_size
, _("\
5689 Set the maximum number of bytes per memory write packet (deprecated)."),
5691 add_cmd ("remotewritesize", no_class
, show_memory_write_packet_size
, _("\
5692 Show the maximum number of bytes per memory write packet (deprecated)."),
5694 add_cmd ("memory-write-packet-size", no_class
,
5695 set_memory_write_packet_size
, _("\
5696 Set the maximum number of bytes per memory-write packet.\n\
5697 Specify the number of bytes in a packet or 0 (zero) for the\n\
5698 default packet size. The actual limit is further reduced\n\
5699 dependent on the target. Specify ``fixed'' to disable the\n\
5700 further restriction and ``limit'' to enable that restriction."),
5701 &remote_set_cmdlist
);
5702 add_cmd ("memory-read-packet-size", no_class
,
5703 set_memory_read_packet_size
, _("\
5704 Set the maximum number of bytes per memory-read packet.\n\
5705 Specify the number of bytes in a packet or 0 (zero) for the\n\
5706 default packet size. The actual limit is further reduced\n\
5707 dependent on the target. Specify ``fixed'' to disable the\n\
5708 further restriction and ``limit'' to enable that restriction."),
5709 &remote_set_cmdlist
);
5710 add_cmd ("memory-write-packet-size", no_class
,
5711 show_memory_write_packet_size
,
5712 _("Show the maximum number of bytes per memory-write packet."),
5713 &remote_show_cmdlist
);
5714 add_cmd ("memory-read-packet-size", no_class
,
5715 show_memory_read_packet_size
,
5716 _("Show the maximum number of bytes per memory-read packet."),
5717 &remote_show_cmdlist
);
5719 add_setshow_zinteger_cmd ("hardware-watchpoint-limit", no_class
,
5720 &remote_hw_watchpoint_limit
, _("\
5721 Set the maximum number of target hardware watchpoints."), _("\
5722 Show the maximum number of target hardware watchpoints."), _("\
5723 Specify a negative limit for unlimited."),
5724 NULL
, NULL
, /* FIXME: i18n: The maximum number of target hardware watchpoints is %s. */
5725 &remote_set_cmdlist
, &remote_show_cmdlist
);
5726 add_setshow_zinteger_cmd ("hardware-breakpoint-limit", no_class
,
5727 &remote_hw_breakpoint_limit
, _("\
5728 Set the maximum number of target hardware breakpoints."), _("\
5729 Show the maximum number of target hardware breakpoints."), _("\
5730 Specify a negative limit for unlimited."),
5731 NULL
, NULL
, /* FIXME: i18n: The maximum number of target hardware breakpoints is %s. */
5732 &remote_set_cmdlist
, &remote_show_cmdlist
);
5734 add_setshow_integer_cmd ("remoteaddresssize", class_obscure
,
5735 &remote_address_size
, _("\
5736 Set the maximum size of the address (in bits) in a memory packet."), _("\
5737 Show the maximum size of the address (in bits) in a memory packet."), NULL
,
5739 NULL
, /* FIXME: i18n: */
5740 &setlist
, &showlist
);
5742 add_packet_config_cmd (&remote_protocol_binary_download
,
5743 "X", "binary-download",
5744 set_remote_protocol_binary_download_cmd
,
5745 show_remote_protocol_binary_download_cmd
,
5746 &remote_set_cmdlist
, &remote_show_cmdlist
,
5749 add_packet_config_cmd (&remote_protocol_vcont
,
5750 "vCont", "verbose-resume",
5751 set_remote_protocol_vcont_packet_cmd
,
5752 show_remote_protocol_vcont_packet_cmd
,
5753 &remote_set_cmdlist
, &remote_show_cmdlist
,
5756 add_packet_config_cmd (&remote_protocol_qSymbol
,
5757 "qSymbol", "symbol-lookup",
5758 set_remote_protocol_qSymbol_packet_cmd
,
5759 show_remote_protocol_qSymbol_packet_cmd
,
5760 &remote_set_cmdlist
, &remote_show_cmdlist
,
5763 add_packet_config_cmd (&remote_protocol_P
,
5764 "P", "set-register",
5765 set_remote_protocol_P_packet_cmd
,
5766 show_remote_protocol_P_packet_cmd
,
5767 &remote_set_cmdlist
, &remote_show_cmdlist
,
5770 add_packet_config_cmd (&remote_protocol_p
,
5771 "p", "fetch-register",
5772 set_remote_protocol_p_packet_cmd
,
5773 show_remote_protocol_p_packet_cmd
,
5774 &remote_set_cmdlist
, &remote_show_cmdlist
,
5777 add_packet_config_cmd (&remote_protocol_Z
[Z_PACKET_SOFTWARE_BP
],
5778 "Z0", "software-breakpoint",
5779 set_remote_protocol_Z_software_bp_packet_cmd
,
5780 show_remote_protocol_Z_software_bp_packet_cmd
,
5781 &remote_set_cmdlist
, &remote_show_cmdlist
,
5784 add_packet_config_cmd (&remote_protocol_Z
[Z_PACKET_HARDWARE_BP
],
5785 "Z1", "hardware-breakpoint",
5786 set_remote_protocol_Z_hardware_bp_packet_cmd
,
5787 show_remote_protocol_Z_hardware_bp_packet_cmd
,
5788 &remote_set_cmdlist
, &remote_show_cmdlist
,
5791 add_packet_config_cmd (&remote_protocol_Z
[Z_PACKET_WRITE_WP
],
5792 "Z2", "write-watchpoint",
5793 set_remote_protocol_Z_write_wp_packet_cmd
,
5794 show_remote_protocol_Z_write_wp_packet_cmd
,
5795 &remote_set_cmdlist
, &remote_show_cmdlist
,
5798 add_packet_config_cmd (&remote_protocol_Z
[Z_PACKET_READ_WP
],
5799 "Z3", "read-watchpoint",
5800 set_remote_protocol_Z_read_wp_packet_cmd
,
5801 show_remote_protocol_Z_read_wp_packet_cmd
,
5802 &remote_set_cmdlist
, &remote_show_cmdlist
,
5805 add_packet_config_cmd (&remote_protocol_Z
[Z_PACKET_ACCESS_WP
],
5806 "Z4", "access-watchpoint",
5807 set_remote_protocol_Z_access_wp_packet_cmd
,
5808 show_remote_protocol_Z_access_wp_packet_cmd
,
5809 &remote_set_cmdlist
, &remote_show_cmdlist
,
5812 add_packet_config_cmd (&remote_protocol_qPart_auxv
,
5813 "qPart_auxv", "read-aux-vector",
5814 set_remote_protocol_qPart_auxv_packet_cmd
,
5815 show_remote_protocol_qPart_auxv_packet_cmd
,
5816 &remote_set_cmdlist
, &remote_show_cmdlist
,
5819 add_packet_config_cmd (&remote_protocol_qGetTLSAddr
,
5820 "qGetTLSAddr", "get-thread-local-storage-address",
5821 set_remote_protocol_qGetTLSAddr_packet_cmd
,
5822 show_remote_protocol_qGetTLSAddr_packet_cmd
,
5823 &remote_set_cmdlist
, &remote_show_cmdlist
,
5826 /* Keep the old ``set remote Z-packet ...'' working. */
5827 add_setshow_auto_boolean_cmd ("Z-packet", class_obscure
,
5828 &remote_Z_packet_detect
, _("\
5829 Set use of remote protocol `Z' packets"), _("\
5830 Show use of remote protocol `Z' packets "), _("\
5831 When set, GDB will attempt to use the remote breakpoint and watchpoint\n\
5833 set_remote_protocol_Z_packet_cmd
,
5834 show_remote_protocol_Z_packet_cmd
, /* FIXME: i18n: Use of remote protocol `Z' packets is %s. */
5835 &remote_set_cmdlist
, &remote_show_cmdlist
);
5837 /* Eventually initialize fileio. See fileio.c */
5838 initialize_remote_fileio (remote_set_cmdlist
, remote_show_cmdlist
);