/* Remote target communications for serial-line targets in custom GDB protocol
- Copyright 1988, 91, 92, 93, 94, 95, 96, 97, 1998
- Free Software Foundation, Inc.
-
-This file is part of GDB.
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
-/* Remote communication protocol.
-
- A debug packet whose contents are <data>
- is encapsulated for transmission in the form:
-
- $ <data> # CSUM1 CSUM2
-
- <data> must be ASCII alphanumeric and cannot include characters
- '$' or '#'. If <data> starts with two characters followed by
- ':', then the existing stubs interpret this as a sequence number.
-
- CSUM1 and CSUM2 are ascii hex representation of an 8-bit
- checksum of <data>, the most significant nibble is sent first.
- the hex digits 0-9,a-f are used.
-
- Receiver responds with:
-
- + - if CSUM is correct and ready for next packet
- - - if CSUM is incorrect
-
- <data> is as follows:
- Most values are encoded in ascii hex digits. Signal numbers are according
- to the numbering in target.h.
-
- Request Packet
-
- set thread Hct... Set thread for subsequent operations.
- c = 'c' for thread used in step and
- continue; t... can be -1 for all
- threads.
- c = 'g' for thread used in other
- operations. If zero, pick a thread,
- any thread.
- reply OK for success
- ENN for an error.
-
- read registers g
- reply XX....X Each byte of register data
- is described by two hex digits.
- Registers are in the internal order
- for GDB, and the bytes in a register
- are in the same order the machine uses.
- or ENN for an error.
-
- write regs GXX..XX Each byte of register data
- is described by two hex digits.
- reply OK for success
- ENN for an error
-
- write reg Pn...=r... Write register n... with value r...,
- which contains two hex digits for each
- byte in the register (target byte
- order).
- reply OK for success
- ENN for an error
- (not supported by all stubs).
-
- read mem mAA..AA,LLLL AA..AA is address, LLLL is length.
- reply XX..XX XX..XX is mem contents
- Can be fewer bytes than requested
- if able to read only part of the data.
- or ENN NN is errno
-
- write mem MAA..AA,LLLL:XX..XX
- AA..AA is address,
- LLLL is number of bytes,
- XX..XX is data
- reply OK for success
- ENN for an error (this includes the case
- where only part of the data was
- written).
-
- write mem XAA..AA,LLLL:XX..XX
- (binary) AA..AA is address,
- LLLL is number of bytes,
- XX..XX is binary data
- reply OK for success
- ENN for an error
-
- continue cAA..AA AA..AA is address to resume
- If AA..AA is omitted,
- resume at same address.
-
- step sAA..AA AA..AA is address to resume
- If AA..AA is omitted,
- resume at same address.
-
- continue with Csig;AA..AA Continue with signal sig (hex signal
- signal number). If ;AA..AA is omitted,
- resume at same address.
-
- step with Ssig;AA..AA Like 'C' but step not continue.
- signal
-
- last signal ? Reply the current reason for stopping.
- This is the same reply as is generated
- for step or cont : SAA where AA is the
- signal number.
-
- detach D Reply OK.
-
- There is no immediate reply to step or cont.
- The reply comes when the machine stops.
- It is SAA AA is the signal number.
-
- or... TAAn...:r...;n...:r...;n...:r...;
- AA = signal number
- n... = register number (hex)
- r... = register contents
- n... = `thread'
- r... = thread process ID. This is
- a hex integer.
- n... = other string not starting
- with valid hex digit.
- gdb should ignore this n,r pair
- and go on to the next. This way
- we can extend the protocol.
- or... WAA The process exited, and AA is
- the exit status. This is only
- applicable for certains sorts of
- targets.
- or... XAA The process terminated with signal
- AA.
- or (obsolete) NAA;tttttttt;dddddddd;bbbbbbbb
- AA = signal number
- tttttttt = address of symbol "_start"
- dddddddd = base of data section
- bbbbbbbb = base of bss section.
- Note: only used by Cisco Systems
- targets. The difference between this
- reply and the "qOffsets" query is that
- the 'N' packet may arrive spontaneously
- whereas the 'qOffsets' is a query
- initiated by the host debugger.
- or... OXX..XX XX..XX is hex encoding of ASCII data. This
- can happen at any time while the
- program is running and the debugger
- should continue to wait for
- 'W', 'T', etc.
-
- thread alive TXX Find out if the thread XX is alive.
- reply OK thread is still alive
- ENN thread is dead
-
- remote restart RXX Restart the remote server
-
- extended ops ! Use the extended remote protocol.
- Sticky -- only needs to be set once.
-
- kill request k
-
- toggle debug d toggle debug flag (see 386 & 68k stubs)
- reset r reset -- see sparc stub.
- reserved <other> On other requests, the stub should
- ignore the request and send an empty
- response ($#<checksum>). This way
- we can extend the protocol and GDB
- can tell whether the stub it is
- talking to uses the old or the new.
- search tAA:PP,MM Search backwards starting at address
- AA for a match with pattern PP and
- mask MM. PP and MM are 4 bytes.
- Not supported by all stubs.
-
- general query qXXXX Request info about XXXX.
- general set QXXXX=yyyy Set value of XXXX to yyyy.
- query sect offs qOffsets Get section offsets. Reply is
- Text=xxx;Data=yyy;Bss=zzz
-
- Responses can be run-length encoded to save space. A '*' means that
- the next character is an ASCII encoding giving a repeat count which
- stands for that many repititions of the character preceding the '*'.
- The encoding is n+29, yielding a printable character where n >=3
- (which is where rle starts to win). Don't use an n > 126.
-
- So
- "0* " means the same as "0000". */
+ Copyright 1988, 1991-2000 Free Software Foundation, Inc.
+
+ This file is part of GDB.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+/* See the GDB User Guide for details of the GDB remote protocol. */
#include "defs.h"
#include "gdb_string.h"
#include "bfd.h"
#include "symfile.h"
#include "target.h"
-#include "wait.h"
-/*#include "terminal.h"*/
+#include "gdb_wait.h"
+/*#include "terminal.h" */
#include "gdbcmd.h"
#include "objfiles.h"
#include "gdb-stabs.h"
#include "gdbthread.h"
+#include "remote.h"
#include "dcache.h"
#include <ctype.h>
+#include <sys/time.h>
#ifdef USG
#include <sys/types.h>
#endif
+#include "event-loop.h"
+#include "event-top.h"
+#include "inf-loop.h"
+
#include <signal.h>
#include "serial.h"
/* Prototypes for local functions */
+static void cleanup_sigint_signal_handler (void *dummy);
+static void initialize_sigint_signal_handler (void);
+static int getpkt_sane (char *buf, long sizeof_buf, int forever);
+
+static void handle_remote_sigint PARAMS ((int));
+static void handle_remote_sigint_twice PARAMS ((int));
+static void async_remote_interrupt PARAMS ((gdb_client_data));
+void async_remote_interrupt_twice PARAMS ((gdb_client_data));
static void build_remote_gdbarch_data PARAMS ((void));
-static int remote_write_bytes PARAMS ((CORE_ADDR memaddr,
- char *myaddr, int len));
+static int remote_write_bytes (CORE_ADDR memaddr, char *myaddr, int len);
static int remote_read_bytes PARAMS ((CORE_ADDR memaddr,
char *myaddr, int len));
-static void remote_files_info PARAMS ((struct target_ops *ignore));
+static void remote_files_info PARAMS ((struct target_ops * ignore));
-static int remote_xfer_memory PARAMS ((CORE_ADDR memaddr, char * myaddr,
+static int remote_xfer_memory PARAMS ((CORE_ADDR memaddr, char *myaddr,
int len, int should_write,
struct target_ops * target));
static void remote_resume PARAMS ((int pid, int step,
enum target_signal siggnal));
-
+static void remote_async_resume PARAMS ((int pid, int step,
+ enum target_signal siggnal));
static int remote_start_remote PARAMS ((PTR));
static void remote_open PARAMS ((char *name, int from_tty));
+static void remote_async_open PARAMS ((char *name, int from_tty));
static void extended_remote_open PARAMS ((char *name, int from_tty));
+static void extended_remote_async_open PARAMS ((char *name, int from_tty));
static void remote_open_1 PARAMS ((char *, int, struct target_ops *,
int extended_p));
+static void remote_async_open_1 PARAMS ((char *, int, struct target_ops *,
+ int extended_p));
static void remote_close PARAMS ((int quitting));
static void remote_store_registers PARAMS ((int regno));
static void remote_mourn PARAMS ((void));
+static void remote_async_mourn PARAMS ((void));
static void extended_remote_restart PARAMS ((void));
static void extended_remote_mourn PARAMS ((void));
static void extended_remote_create_inferior PARAMS ((char *, char *, char **));
+static void extended_remote_async_create_inferior PARAMS ((char *, char *, char **));
static void remote_mourn_1 PARAMS ((struct target_ops *));
-static void remote_send PARAMS ((char *buf));
+static void remote_send (char *buf, long sizeof_buf);
static int readchar PARAMS ((int timeout));
static int remote_wait PARAMS ((int pid, struct target_waitstatus * status));
+static int remote_async_wait PARAMS ((int pid, struct target_waitstatus * status));
static void remote_kill PARAMS ((void));
+static void remote_async_kill PARAMS ((void));
static int tohex PARAMS ((int nib));
static void remote_detach PARAMS ((char *args, int from_tty));
+static void remote_async_detach PARAMS ((char *args, int from_tty));
static void remote_interrupt PARAMS ((int signo));
static void get_offsets PARAMS ((void));
-static int read_frame PARAMS ((char *));
+static long read_frame (char *buf, long sizeof_buf);
static int remote_insert_breakpoint PARAMS ((CORE_ADDR, char *));
static int stubhex PARAMS ((int ch));
-static int remote_query PARAMS ((int/*char*/, char *, char *, int *));
+static int remote_query PARAMS ((int /*char */ , char *, char *, int *));
static int hexnumstr PARAMS ((char *, ULONGEST));
+static int hexnumnstr PARAMS ((char *, ULONGEST, int));
+
static CORE_ADDR remote_address_masked PARAMS ((CORE_ADDR));
static void print_packet PARAMS ((char *));
extern int fromhex PARAMS ((int a));
-extern void getpkt PARAMS ((char *buf, int forever));
+static int putpkt_binary PARAMS ((char *buf, int cnt));
+
+static void check_binary_download PARAMS ((CORE_ADDR addr));
-extern int putpkt PARAMS ((char *buf));
+struct packet_config;
+
+static void show_packet_config_cmd PARAMS ((struct packet_config * config));
+
+static void set_packet_config_cmd PARAMS ((struct packet_config * config,
+ struct cmd_list_element * c));
+
+static void add_packet_config_cmd PARAMS ((struct packet_config * config,
+ char *name,
+ char *title,
+ void (*set_func) (char *args, int from_tty, struct cmd_list_element * c),
+ void (*show_func) (char *name, int from_tty),
+ struct cmd_list_element **setlist,
+ struct cmd_list_element **showlist));
+
+static void init_packet_config PARAMS ((struct packet_config * config));
+
+static void set_remote_protocol_P_packet_cmd PARAMS ((char *args,
+ int from_tty,
+ struct cmd_list_element * c));
+
+static void show_remote_protocol_P_packet_cmd PARAMS ((char *args,
+ int from_tty));
+
+static void set_remote_protocol_Z_packet_cmd PARAMS ((char *args,
+ int from_tty,
+ struct cmd_list_element * c));
+
+static void show_remote_protocol_Z_packet_cmd PARAMS ((char *args,
+ int from_tty));
-static int putpkt_binary PARAMS ((char *buf, int cnt));
-void remote_console_output PARAMS ((char *));
-static void check_binary_download PARAMS ((CORE_ADDR addr));
/* Define the target subroutine names */
static struct target_ops extended_remote_ops;
-/* This was 5 seconds, which is a long time to sit and wait.
- Unless this is going though some terminal server or multiplexer or
- other form of hairy serial connection, I would think 2 seconds would
- be plenty. */
+/* Temporary target ops. Just like the remote_ops and
+ extended_remote_ops, but with asynchronous support. */
+static struct target_ops remote_async_ops;
+
+static struct target_ops extended_async_remote_ops;
+
+/* FIXME: cagney/1999-09-23: Even though getpkt was called with
+ ``forever'' still use the normal timeout mechanism. This is
+ currently used by the ASYNC code to guarentee that target reads
+ during the initial connect always time-out. Once getpkt has been
+ modified to return a timeout indication and, in turn
+ remote_wait()/wait_for_inferior() have gained a timeout parameter
+ this can go away. */
+static int wait_forever_enabled_p = 1;
-/* Changed to allow option to set timeout value.
- was static int remote_timeout = 2; */
-extern int remote_timeout;
/* This variable chooses whether to send a ^C or a break when the user
requests program interruption. Although ^C is usually what remote
to denote that the target is in kernel mode. */
static int cisco_kernel_mode = 0;
-/* This variable (available to the user via "set remotebinarydownload")
- dictates whether downloads are sent in binary (via the 'X' packet).
- We assume that the stub can, and attempt to do it. This will be cleared if
- the stub does not understand it. This switch is still needed, though
- in cases when the packet is supported in the stub, but the connection
- does not allow it (i.e., 7-bit serial connection only). */
-static int remote_binary_download = 1;
-
-/* Have we already checked whether binary downloads work? */
-static int remote_binary_checked;
-
-/* Maximum number of bytes to read/write at once. The value here
- is chosen to fill up a packet (the headers account for the 32). */
-#define MAXBUFBYTES(N) (((N)-32)/2)
-
-/* Having this larger than 400 causes us to be incompatible with m68k-stub.c
- and i386-stub.c. Normally, no one would notice because it only matters
- for writing large chunks of memory (e.g. in downloads). Also, this needs
- to be more than 400 if required to hold the registers (see below, where
- we round it up based on REGISTER_BYTES). */
-/* Round up PBUFSIZ to hold all the registers, at least. */
-#define PBUFSIZ ((REGISTER_BYTES > MAXBUFBYTES (400)) \
- ? (REGISTER_BYTES * 2 + 32) \
- : 400)
-
-
-/* This variable sets the number of bytes to be written to the target
- in a single packet. Normally PBUFSIZ is satisfactory, but some
- targets need smaller values (perhaps because the receiving end
- is slow). */
-
-static int remote_write_size;
-
/* This variable sets the number of bits in an address that are to be
sent in a memory ("M" or "m") packet. Normally, after stripping
leading zeros, the entire address would be sent. This variable
static int remote_address_size;
-/* This is the size (in chars) of the first response to the `g' command. This
- is used to limit the size of the memory read and write commands to prevent
- stub buffers from overflowing. The size does not include headers and
- trailers, it is only the payload size. */
+/* Tempoary to track who currently owns the terminal. See
+ target_async_terminal_* for more details. */
+
+static int remote_async_terminal_ours_p;
+
+\f
+/* This is the size (in chars) of the first response to the ``g''
+ packet. It is used as a heuristic when determining the maximum
+ size of memory-read and memory-write packets. A target will
+ typically only reserve a buffer large enough to hold the ``g''
+ packet. The size does not include packet overhead (headers and
+ trailers). */
+
+static long actual_register_packet_size;
+
+/* This is the maximum size (in chars) of a non read/write packet. It
+ is also used as a cap on the size of read/write packets. */
+
+static long remote_packet_size;
+/* compatibility. */
+#define PBUFSIZ (remote_packet_size)
+
+/* User configurable variables for the number of characters in a
+ memory read/write packet. MIN (PBUFSIZ, g-packet-size) is the
+ default. Some targets need smaller values (fifo overruns, et.al.)
+ and some users need larger values (speed up transfers). The
+ variables ``preferred_*'' (the user request), ``current_*'' (what
+ was actually set) and ``forced_*'' (Positive - a soft limit,
+ negative - a hard limit). */
+
+struct memory_packet_config
+{
+ char *name;
+ long size;
+ int fixed_p;
+};
+
+/* Compute the current size of a read/write packet. Since this makes
+ use of ``actual_register_packet_size'' the computation is dynamic. */
+
+static long
+get_memory_packet_size (struct memory_packet_config *config)
+{
+ /* NOTE: The somewhat arbitrary 16k comes from the knowledge (folk
+ law?) that some hosts don't cope very well with large alloca()
+ calls. Eventually the alloca() code will be replaced by calls to
+ xmalloc() and make_cleanups() allowing this restriction to either
+ be lifted or removed. */
+#ifndef MAX_REMOTE_PACKET_SIZE
+#define MAX_REMOTE_PACKET_SIZE 16384
+#endif
+ /* NOTE: 16 is just chosen at random. */
+#ifndef MIN_REMOTE_PACKET_SIZE
+#define MIN_REMOTE_PACKET_SIZE 16
+#endif
+ long what_they_get;
+ if (config->fixed_p)
+ {
+ if (config->size <= 0)
+ what_they_get = MAX_REMOTE_PACKET_SIZE;
+ else
+ what_they_get = config->size;
+ }
+ else
+ {
+ what_they_get = remote_packet_size;
+ /* Limit the packet to the size specified by the user. */
+ if (config->size > 0
+ && what_they_get > config->size)
+ what_they_get = config->size;
+ /* Limit it to the size of the targets ``g'' response. */
+ if (actual_register_packet_size > 0
+ && what_they_get > actual_register_packet_size)
+ what_they_get = actual_register_packet_size;
+ }
+ if (what_they_get > MAX_REMOTE_PACKET_SIZE)
+ what_they_get = MAX_REMOTE_PACKET_SIZE;
+ if (what_they_get < MIN_REMOTE_PACKET_SIZE)
+ what_they_get = MIN_REMOTE_PACKET_SIZE;
+ return what_they_get;
+}
+
+/* Update the size of a read/write packet. If they user wants
+ something really big then do a sanity check. */
+
+static void
+set_memory_packet_size (char *args, struct memory_packet_config *config)
+{
+ int fixed_p = config->fixed_p;
+ long size = config->size;
+ if (args == NULL)
+ error ("Argument required (integer, `fixed' or `limited').");
+ else if (strcmp (args, "hard") == 0
+ || strcmp (args, "fixed") == 0)
+ fixed_p = 1;
+ else if (strcmp (args, "soft") == 0
+ || strcmp (args, "limit") == 0)
+ fixed_p = 0;
+ else
+ {
+ char *end;
+ size = strtoul (args, &end, 0);
+ if (args == end)
+ error ("Invalid %s (bad syntax).", config->name);
+#if 0
+ /* Instead of explicitly capping the size of a packet to
+ MAX_REMOTE_PACKET_SIZE or dissallowing it, the user is
+ instead allowed to set the size to something arbitrarily
+ large. */
+ if (size > MAX_REMOTE_PACKET_SIZE)
+ error ("Invalid %s (too large).", config->name);
+#endif
+ }
+ /* Extra checks? */
+ if (fixed_p && !config->fixed_p)
+ {
+ if (! query ("The target may not be able to correctly handle a %s\n"
+ "of %ld bytes. Change the packet size? ",
+ config->name, size))
+ error ("Packet size not changed.");
+ }
+ /* Update the config. */
+ config->fixed_p = fixed_p;
+ config->size = size;
+}
+
+static void
+show_memory_packet_size (struct memory_packet_config *config)
+{
+ printf_filtered ("The %s is %ld. ", config->name, config->size);
+ if (config->fixed_p)
+ printf_filtered ("Packets are fixed at %ld bytes.\n",
+ get_memory_packet_size (config));
+ else
+ printf_filtered ("Packets are limited to %ld bytes.\n",
+ get_memory_packet_size (config));
+}
+
+static struct memory_packet_config memory_write_packet_config =
+{
+ "memory-write-packet-size",
+};
+
+static void
+set_memory_write_packet_size (char *args, int from_tty)
+{
+ set_memory_packet_size (args, &memory_write_packet_config);
+}
+
+static void
+show_memory_write_packet_size (char *args, int from_tty)
+{
+ show_memory_packet_size (&memory_write_packet_config);
+}
+
+static long
+get_memory_write_packet_size (void)
+{
+ return get_memory_packet_size (&memory_write_packet_config);
+}
+
+static struct memory_packet_config memory_read_packet_config =
+{
+ "memory-read-packet-size",
+};
+
+static void
+set_memory_read_packet_size (char *args, int from_tty)
+{
+ set_memory_packet_size (args, &memory_read_packet_config);
+}
+
+static void
+show_memory_read_packet_size (char *args, int from_tty)
+{
+ show_memory_packet_size (&memory_read_packet_config);
+}
+
+static long
+get_memory_read_packet_size (void)
+{
+ long size = get_memory_packet_size (&memory_read_packet_config);
+ /* FIXME: cagney/1999-11-07: Functions like getpkt() need to get an
+ extra buffer size argument before the memory read size can be
+ increased beyond PBUFSIZ. */
+ if (size > PBUFSIZ)
+ size = PBUFSIZ;
+ return size;
+}
+
+/* Register packet size initialization. Since the bounds change when
+ the architecture changes (namely REGISTER_BYTES) this all needs to
+ be multi-arched. */
+
+static void
+register_remote_packet_sizes (void)
+{
+ REGISTER_GDBARCH_SWAP (remote_packet_size);
+ REGISTER_GDBARCH_SWAP (actual_register_packet_size);
+}
+
+static void
+build_remote_packet_sizes (void)
+{
+ /* Default maximum number of characters in a packet body. Many
+ remote stubs have a hardwired buffer size of 400 bytes
+ (c.f. BUFMAX in m68k-stub.c and i386-stub.c). BUFMAX-1 is used
+ as the maximum packet-size to ensure that the packet and an extra
+ NUL character can always fit in the buffer. This stops GDB
+ trashing stubs that try to squeeze an extra NUL into what is
+ already a full buffer (As of 1999-12-04 that was most stubs. */
+ remote_packet_size = 400 - 1;
+ /* Should REGISTER_BYTES needs more space than the default, adjust
+ the size accordingly. Remember that each byte is encoded as two
+ characters. 32 is the overhead for the packet header /
+ footer. NOTE: cagney/1999-10-26: I suspect that 8
+ (``$NN:G...#NN'') is a better guess, the below has been padded a
+ little. */
+ if (REGISTER_BYTES > ((remote_packet_size - 32) / 2))
+ remote_packet_size = (REGISTER_BYTES * 2 + 32);
+
+ /* This one is filled in when a ``g'' packet is received. */
+ actual_register_packet_size = 0;
+}
+\f
+/* Generic configuration support for packets the stub optionally
+ supports. Allows the user to specify the use of the packet as well
+ as allowing GDB to auto-detect support in the remote stub. */
+
+enum packet_support
+ {
+ PACKET_SUPPORT_UNKNOWN = 0,
+ PACKET_ENABLE,
+ PACKET_DISABLE
+ };
+
+enum packet_detect
+ {
+ PACKET_AUTO_DETECT = 0,
+ PACKET_MANUAL_DETECT
+ };
+
+struct packet_config
+ {
+ char *state;
+ char *name;
+ char *title;
+ enum packet_detect detect;
+ enum packet_support support;
+ };
+
+static char packet_support_auto[] = "auto";
+static char packet_enable[] = "enable";
+static char packet_disable[] = "disable";
+static char *packet_support_enums[] =
+{
+ packet_support_auto,
+ packet_enable,
+ packet_disable,
+ 0,
+};
+
+static void
+set_packet_config_cmd (config, c)
+ struct packet_config *config;
+ struct cmd_list_element *c;
+{
+ if (config->state == packet_enable)
+ {
+ config->detect = PACKET_MANUAL_DETECT;
+ config->support = PACKET_ENABLE;
+ }
+ else if (config->state == packet_disable)
+ {
+ config->detect = PACKET_MANUAL_DETECT;
+ config->support = PACKET_DISABLE;
+ }
+ else if (config->state == packet_support_auto)
+ {
+ config->detect = PACKET_AUTO_DETECT;
+ config->support = PACKET_SUPPORT_UNKNOWN;
+ }
+ else
+ internal_error ("Bad enum value");
+}
+
+static void
+show_packet_config_cmd (config)
+ struct packet_config *config;
+{
+ char *support = "internal-error";
+ switch (config->support)
+ {
+ case PACKET_ENABLE:
+ support = "enabled";
+ break;
+ case PACKET_DISABLE:
+ support = "disabled";
+ break;
+ case PACKET_SUPPORT_UNKNOWN:
+ support = "unknown";
+ break;
+ }
+ switch (config->detect)
+ {
+ case PACKET_AUTO_DETECT:
+ printf_filtered ("Support for remote protocol `%s' (%s) packet is auto-detected, currently %s.\n",
+ config->name, config->title, support);
+ break;
+ case PACKET_MANUAL_DETECT:
+ printf_filtered ("Support for remote protocol `%s' (%s) is currently %s.\n",
+ config->name, config->title, support);
+ }
+}
+
+static void
+add_packet_config_cmd (config, name, title, set_func, show_func,
+ setlist, showlist)
+ struct packet_config *config;
+ char *name;
+ char *title;
+ void (*set_func) PARAMS ((char *args, int from_tty,
+ struct cmd_list_element * c));
+ void (*show_func) PARAMS ((char *name, int from_tty));
+ struct cmd_list_element **setlist;
+ struct cmd_list_element **showlist;
+{
+ struct cmd_list_element *c;
+ char *set_doc;
+ char *show_doc;
+ char *full_name;
+ config->name = name;
+ config->title = title;
+ asprintf (&set_doc, "Set use of remote protocol `%s' (%s) packet",
+ name, title);
+ asprintf (&show_doc, "Show current use of remote protocol `%s' (%s) packet",
+ name, title);
+ asprintf (&full_name, "%s-packet", name);
+ c = add_set_enum_cmd (full_name,
+ class_obscure, packet_support_enums,
+ (char *) &config->state,
+ set_doc, setlist);
+ c->function.sfunc = set_func;
+ add_cmd (full_name, class_obscure, show_func, show_doc, showlist);
+}
+
+static void
+init_packet_config (config)
+ struct packet_config *config;
+{
+ switch (config->detect)
+ {
+ case PACKET_AUTO_DETECT:
+ config->support = PACKET_SUPPORT_UNKNOWN;
+ break;
+ case PACKET_MANUAL_DETECT:
+ /* let the user beware */
+ break;
+ }
+}
+
+/* Should we try the 'P' (set register) request? */
+
+static struct packet_config remote_protocol_P;
+
+static void
+set_remote_protocol_P_packet_cmd (args, from_tty, c)
+ char *args;
+ int from_tty;
+ struct cmd_list_element *c;
+{
+ set_packet_config_cmd (&remote_protocol_P, c);
+}
+
+static void
+show_remote_protocol_P_packet_cmd (args, from_tty)
+ char *args;
+ int from_tty;
+{
+ show_packet_config_cmd (&remote_protocol_P);
+}
+
+/* Should we try the 'Z' (set breakpoint) request? */
+
+static struct packet_config remote_protocol_Z;
+
+static void
+set_remote_protocol_Z_packet_cmd (args, from_tty, c)
+ char *args;
+ int from_tty;
+ struct cmd_list_element *c;
+{
+ set_packet_config_cmd (&remote_protocol_Z, c);
+}
+
+static void
+show_remote_protocol_Z_packet_cmd (args, from_tty)
+ char *args;
+ int from_tty;
+{
+ show_packet_config_cmd (&remote_protocol_Z);
+}
+
+/* Should we try the 'X' (remote binary download) packet?
+
+ This variable (available to the user via "set remote X-packet")
+ dictates whether downloads are sent in binary (via the 'X' packet).
+ We assume that the stub can, and attempt to do it. This will be
+ cleared if the stub does not understand it. This switch is still
+ needed, though in cases when the packet is supported in the stub,
+ but the connection does not allow it (i.e., 7-bit serial connection
+ only). */
+
+static struct packet_config remote_protocol_binary_download;
+
+static void
+set_remote_protocol_binary_download_cmd (char *args,
+ int from_tty,
+ struct cmd_list_element *c)
+{
+ set_packet_config_cmd (&remote_protocol_binary_download, c);
+}
+
+static void
+show_remote_protocol_binary_download_cmd (char *args,
+ int from_tty)
+{
+ show_packet_config_cmd (&remote_protocol_binary_download);
+}
-static int remote_register_buf_size = 0;
-/* Should we try the 'P' request? If this is set to one when the stub
- doesn't support 'P', the only consequence is some unnecessary traffic. */
-static int stub_supports_P = 1;
+/* Tokens for use by the asynchronous signal handlers for SIGINT */
+PTR sigint_remote_twice_token;
+PTR sigint_remote_token;
/* These are pointers to hook functions that may be set in order to
modify resume/wait behavior for a particular architecture. */
void (*target_resume_hook) PARAMS ((void));
void (*target_wait_loop_hook) PARAMS ((void));
-
\f
+
/* These are the threads which we last sent to the remote system.
-1 for all or -2 for not sent yet. */
static int general_thread;
if (!in_thread_list (currthread))
{
add_thread (currthread);
+#ifdef UI_OUT
+ ui_out_text (uiout, "[New ");
+ ui_out_text (uiout, target_pid_to_str (currthread));
+ ui_out_text (uiout, "]\n");
+#else
printf_filtered ("[New %s]\n", target_pid_to_str (currthread));
+#endif
}
}
int th;
int gen;
{
- char buf[PBUFSIZ];
+ char *buf = alloca (PBUFSIZ);
int state = gen ? general_thread : continue_thread;
if (state == th)
else
sprintf (&buf[2], "%x", th);
putpkt (buf);
- getpkt (buf, 0);
+ getpkt (buf, PBUFSIZ, 0);
if (gen)
- general_thread = th;
+ general_thread = th;
else
continue_thread = th;
}
else
sprintf (buf, "T%08x", tid);
putpkt (buf);
- getpkt (buf, 0);
+ getpkt (buf, sizeof (buf), 0);
return (buf[0] == 'O' && buf[1] == 'K');
}
/* Right now, the internal structure is int. We want it to be bigger.
Plan to fix this.
- */
+ */
-typedef int gdb_threadref; /* internal GDB thread reference */
+typedef int gdb_threadref; /* internal GDB thread reference */
/* gdb_ext_thread_info is an internal GDB data structure which is
equivalint to the reply of the remote threadinfo packet */
struct gdb_ext_thread_info
-{
- threadref threadid; /* External form of thread reference */
- int active; /* Has state interesting to GDB? , regs, stack */
- char display[256]; /* Brief state display, name, blocked/syspended */
- char shortname[32]; /* To be used to name threads */
- char more_display[256]; /* Long info, statistics, queue depth, whatever */
-};
+ {
+ threadref threadid; /* External form of thread reference */
+ int active; /* Has state interesting to GDB? , regs, stack */
+ char display[256]; /* Brief state display, name, blocked/syspended */
+ char shortname[32]; /* To be used to name threads */
+ char more_display[256]; /* Long info, statistics, queue depth, whatever */
+ };
/* The volume of remote transfers can be limited by submitting
a mask containing bits specifying the desired information.
Use a union of these values as the 'selection' parameter to
get_thread_info. FIXME: Make these TAG names more thread specific.
- */
+ */
#define TAG_THREADID 1
#define TAG_EXISTS 2
#define TAG_DISPLAY 4
#define TAG_THREADNAME 8
-#define TAG_MOREDISPLAY 16
+#define TAG_MOREDISPLAY 16
#define BUF_THREAD_ID_SIZE (OPAQUETHREADBYTES*2)
static char *pack_nibble PARAMS ((char *buf, int nibble));
-static char *pack_hex_byte PARAMS ((char *pkt, int/*unsigned char*/ byte));
+static char *pack_hex_byte PARAMS ((char *pkt, int /*unsigned char */ byte));
static char *unpack_byte PARAMS ((char *buf, int *value));
static char *unpack_string PARAMS ((char *src, char *dest, int length));
-static char *pack_threadid PARAMS ((char *pkt, threadref *id));
+static char *pack_threadid PARAMS ((char *pkt, threadref * id));
-static char *unpack_threadid PARAMS ((char *inbuf, threadref *id));
+static char *unpack_threadid PARAMS ((char *inbuf, threadref * id));
-void int_to_threadref PARAMS ((threadref *id, int value));
+void int_to_threadref PARAMS ((threadref * id, int value));
-static int threadref_to_int PARAMS ((threadref *ref));
+static int threadref_to_int PARAMS ((threadref * ref));
-static void copy_threadref PARAMS ((threadref *dest, threadref *src));
+static void copy_threadref PARAMS ((threadref * dest, threadref * src));
-static int threadmatch PARAMS ((threadref *dest, threadref *src));
+static int threadmatch PARAMS ((threadref * dest, threadref * src));
static char *pack_threadinfo_request PARAMS ((char *pkt, int mode,
- threadref *id));
+ threadref * id));
static int remote_unpack_thread_info_response PARAMS ((char *pkt,
- threadref *expectedref,
- struct gdb_ext_thread_info *info));
+ threadref * expectedref,
+ struct gdb_ext_thread_info * info));
-static int remote_get_threadinfo PARAMS ((threadref *threadid,
- int fieldset, /*TAG mask */
- struct gdb_ext_thread_info *info));
+static int remote_get_threadinfo PARAMS ((threadref * threadid,
+ int fieldset, /*TAG mask */
+ struct gdb_ext_thread_info * info));
-static int adapt_remote_get_threadinfo PARAMS ((gdb_threadref *ref,
+static int adapt_remote_get_threadinfo PARAMS ((gdb_threadref * ref,
int selection,
- struct gdb_ext_thread_info *info));
+ struct gdb_ext_thread_info * info));
static char *pack_threadlist_request PARAMS ((char *pkt, int startflag,
int threadcount,
- threadref *nextthread));
+ threadref * nextthread));
static int parse_threadlist_response PARAMS ((char *pkt,
int result_limit,
- threadref *original_echo,
- threadref *resultlist,
+ threadref * original_echo,
+ threadref * resultlist,
int *doneflag));
static int remote_get_threadlist PARAMS ((int startflag,
- threadref *nextthread,
+ threadref * nextthread,
int result_limit,
int *done,
int *result_count,
- threadref *threadlist));
+ threadref * threadlist));
-typedef int (*rmt_thread_action) (threadref *ref, void *context);
+typedef int (*rmt_thread_action) (threadref * ref, void *context);
static int remote_threadlist_iterator PARAMS ((rmt_thread_action stepfunction,
- void *context, int looplimit));
+ void *context, int looplimit));
-static int remote_newthread_step PARAMS ((threadref *ref, void *context));
+static int remote_newthread_step PARAMS ((threadref * ref, void *context));
/* encode 64 bits in 16 chars of hex */
return buf + 8;
}
-#if 0 /* currently unused, uncomment when needed */
+#if 0 /* currently unused, uncomment when needed */
static char *pack_string PARAMS ((char *pkt, char *string));
static char *
}
/*
- threadid:1, # always request threadid
- context_exists:2,
- display:4,
- unique_name:8,
- more_display:16
-*/
+ threadid:1, # always request threadid
+ context_exists:2,
+ display:4,
+ unique_name:8,
+ more_display:16
+ */
/* Encoding: 'Q':8,'P':8,mask:32,threadid:64 */
/* Tagging the fields allows us to request specific fields and to
add more fields as time goes by */
-#define TAG_THREADID 1 /* Echo the thread identifier */
-#define TAG_EXISTS 2 /* Is this process defined enough to
- fetch registers and its stack */
-#define TAG_DISPLAY 4 /* A short thing maybe to put on a window */
-#define TAG_THREADNAME 8 /* string, maps 1-to-1 with a thread is */
-#define TAG_MOREDISPLAY 16 /* Whatever the kernel wants to say about
- the process*/
+#define TAG_THREADID 1 /* Echo the thread identifier */
+#define TAG_EXISTS 2 /* Is this process defined enough to
+ fetch registers and its stack */
+#define TAG_DISPLAY 4 /* A short thing maybe to put on a window */
+#define TAG_THREADNAME 8 /* string, maps 1-to-1 with a thread is */
+#define TAG_MOREDISPLAY 16 /* Whatever the kernel wants to say about
+ the process */
static int
remote_unpack_thread_info_response (pkt, expectedref, info)
int mask, length;
unsigned int tag;
threadref ref;
- char *limit = pkt + PBUFSIZ; /* plausable parsing limit */
+ char *limit = pkt + PBUFSIZ; /* plausable parsing limit */
int retval = 1;
/* info->threadid = 0; FIXME: implement zero_threadref */
/* Loop on tagged fields , try to bail if somthing goes wrong */
- while ((pkt < limit) && mask && *pkt) /* packets are terminated with nulls */
+ while ((pkt < limit) && mask && *pkt) /* packets are terminated with nulls */
{
pkt = unpack_int (pkt, &tag); /* tag */
pkt = unpack_byte (pkt, &length); /* length */
struct gdb_ext_thread_info *info;
{
int result;
- char threadinfo_pkt[PBUFSIZ];
+ char *threadinfo_pkt = alloca (PBUFSIZ);
pack_threadinfo_request (threadinfo_pkt, fieldset, threadid);
putpkt (threadinfo_pkt);
- getpkt (threadinfo_pkt, 0);
+ getpkt (threadinfo_pkt, PBUFSIZ, 0);
result = remote_unpack_thread_info_response (threadinfo_pkt + 2, threadid,
info);
return result;
resultcount = 0;
/* Assume the 'q' and 'M chars have been stripped. */
- limit = pkt + (PBUFSIZ - BUF_THREAD_ID_SIZE); /* done parse past here */
+ limit = pkt + (PBUFSIZ - BUF_THREAD_ID_SIZE); /* done parse past here */
pkt = unpack_byte (pkt, &count); /* count field */
pkt = unpack_nibble (pkt, &done);
/* The first threadid is the argument threadid. */
{
static threadref echo_nextthread;
- char threadlist_packet[PBUFSIZ];
- char t_response[PBUFSIZ];
+ char *threadlist_packet = alloca (PBUFSIZ);
+ char *t_response = alloca (PBUFSIZ);
int result = 1;
/* Trancate result limit to be smaller than the packet size */
pack_threadlist_request (threadlist_packet,
startflag, result_limit, nextthread);
putpkt (threadlist_packet);
- getpkt (t_response, 0);
+ getpkt (t_response, PBUFSIZ, 0);
*result_count =
parse_threadlist_response (t_response + 2, result_limit, &echo_nextthread,
remote_current_thread (oldpid)
int oldpid;
{
- char buf[PBUFSIZ];
+ char *buf = alloca (PBUFSIZ);
putpkt ("qC");
- getpkt (buf, 0);
+ getpkt (buf, PBUFSIZ, 0);
if (buf[0] == 'Q' && buf[1] == 'C')
return strtol (&buf[2], NULL, 16);
else
static void
remote_find_new_threads ()
{
- remote_threadlist_iterator (remote_newthread_step, 0,
- CRAZY_MAX_THREADS);
+ remote_threadlist_iterator (remote_newthread_step, 0,
+ CRAZY_MAX_THREADS);
if (inferior_pid == MAGIC_NULL_PID) /* ack ack ack */
inferior_pid = remote_current_thread (inferior_pid);
}
static void
remote_threads_info (void)
{
- char buf[PBUFSIZ], *bufp;
+ char *buf = alloca (PBUFSIZ);
+ char *bufp;
int tid;
if (remote_desc == 0) /* paranoia */
error ("Command can only be used when connected to the remote target.");
putpkt ("qfThreadInfo");
- getpkt (bufp = buf, 0);
+ bufp = buf;
+ getpkt (bufp, PBUFSIZ, 0);
if (bufp[0] == '\0') /* q packet not recognized! */
{ /* try old jmetzler method */
remote_find_new_threads ();
return;
}
else /* try new 'q' method */
- while (*bufp++ == 'm') /* reply contains one or more TID */
+ while (*bufp++ == 'm') /* reply contains one or more TID */
{
- do {
- tid = strtol(bufp, &bufp, 16);
- if (tid != 0 && !in_thread_list (tid))
- add_thread (tid);
- } while (*bufp++ == ','); /* comma-separated list */
+ do
+ {
+ tid = strtol (bufp, &bufp, 16);
+ if (tid != 0 && !in_thread_list (tid))
+ add_thread (tid);
+ }
+ while (*bufp++ == ','); /* comma-separated list */
putpkt ("qsThreadInfo");
- getpkt (bufp = buf, 0);
+ bufp = buf;
+ getpkt (bufp, PBUFSIZ, 0);
}
}
-
\f
+
/* Restart the remote side; this is an extended protocol operation. */
static void
extended_remote_restart ()
{
- char buf[PBUFSIZ];
+ char *buf = alloca (PBUFSIZ);
/* Send the restart command; for reasons I don't understand the
remote side really expects a number after the "R". */
/* Now query for status so this looks just like we restarted
gdbserver from scratch. */
putpkt ("?");
- getpkt (buf, 0);
+ getpkt (buf, PBUFSIZ, 0);
}
\f
/* Clean up connection to a remote debugger. */
static void
get_offsets ()
{
- char buf[PBUFSIZ], *ptr;
+ char *buf = alloca (PBUFSIZ);
+ char *ptr;
int lose;
CORE_ADDR text_addr, data_addr, bss_addr;
struct section_offsets *offs;
putpkt ("qOffsets");
- getpkt (buf, 0);
+ getpkt (buf, PBUFSIZ, 0);
if (buf[0] == '\000')
return; /* Return silently. Stub doesn't support
if (symfile_objfile == NULL)
return;
- offs = (struct section_offsets *) alloca (sizeof (struct section_offsets)
- + symfile_objfile->num_sections
- * sizeof (offs->offsets));
- memcpy (offs, symfile_objfile->section_offsets,
- sizeof (struct section_offsets)
- + symfile_objfile->num_sections
- * sizeof (offs->offsets));
+ offs = (struct section_offsets *) alloca (SIZEOF_SECTION_OFFSETS);
+ memcpy (offs, symfile_objfile->section_offsets, SIZEOF_SECTION_OFFSETS);
ANOFFSET (offs, SECT_OFF_TEXT) = text_addr;
* Returns: zero for success, non-zero for failure
*/
-static int
-remote_cisco_section_offsets (text_addr, data_addr, bss_addr,
- text_offs, data_offs, bss_offs)
- bfd_vma text_addr;
- bfd_vma data_addr;
- bfd_vma bss_addr;
- bfd_signed_vma * text_offs;
- bfd_signed_vma * data_offs;
- bfd_signed_vma * bss_offs;
+static int
+remote_cisco_section_offsets (bfd_vma text_addr,
+ bfd_vma data_addr,
+ bfd_vma bss_addr,
+ bfd_signed_vma *text_offs,
+ bfd_signed_vma *data_offs,
+ bfd_signed_vma *bss_offs)
{
bfd_vma text_base, data_base, bss_base;
struct minimal_symbol *start;
asection *sect;
- bfd * abfd;
+ bfd *abfd;
int len;
char *p;
if (symfile_objfile == NULL)
- return -1; /* no can do nothin' */
+ return -1; /* no can do nothin' */
start = lookup_minimal_symbol ("_start", NULL, NULL);
if (start == NULL)
- return -1; /* Can't find "_start" symbol */
+ return -1; /* Can't find "_start" symbol */
data_base = bss_base = 0;
text_base = SYMBOL_VALUE_ADDRESS (start);
abfd = symfile_objfile->obfd;
- for (sect = abfd->sections;
+ for (sect = abfd->sections;
sect != 0;
sect = sect->next)
{
- p = (unsigned char *) bfd_get_section_name (abfd, sect);
+ p = (unsigned char *) bfd_get_section_name (abfd, sect);
len = strlen (p);
if (strcmp (p + len - 4, "data") == 0) /* ends in "data" */
if (data_base == 0 ||
data_base > bfd_get_section_vma (abfd, sect))
data_base = bfd_get_section_vma (abfd, sect);
if (strcmp (p + len - 3, "bss") == 0) /* ends in "bss" */
- if (bss_base == 0 ||
+ if (bss_base == 0 ||
bss_base > bfd_get_section_vma (abfd, sect))
bss_base = bfd_get_section_vma (abfd, sect);
}
*text_offs = text_addr - text_base;
*data_offs = data_addr - data_base;
- *bss_offs = bss_addr - bss_base;
+ *bss_offs = bss_addr - bss_base;
if (remote_debug)
{
char tmp[128];
sprintf (tmp, "VMA: text = 0x");
sprintf_vma (tmp + strlen (tmp), text_addr);
- sprintf (tmp + strlen (tmp), " data = 0x");
+ sprintf (tmp + strlen (tmp), " data = 0x");
sprintf_vma (tmp + strlen (tmp), data_addr);
- sprintf (tmp + strlen (tmp), " bss = 0x");
+ sprintf (tmp + strlen (tmp), " bss = 0x");
sprintf_vma (tmp + strlen (tmp), bss_addr);
fprintf_filtered (gdb_stdlog, tmp);
fprintf_filtered (gdb_stdlog,
- "Reloc offset: text = 0x%x data = 0x%x bss = 0x%x\n",
- (long) *text_offs, (long) *data_offs, (long) *bss_offs);
+ "Reloc offset: text = 0x%s data = 0x%s bss = 0x%s\n",
+ paddr_nz (*text_offs),
+ paddr_nz (*data_offs),
+ paddr_nz (*bss_offs));
}
return 0;
* Relocate the symbol file for a remote target.
*/
-static void
+void
remote_cisco_objfile_relocate (text_off, data_off, bss_off)
bfd_signed_vma text_off;
bfd_signed_vma data_off;
{
struct section_offsets *offs;
- if (text_off != 0 || data_off != 0 || bss_off != 0)
+ if (text_off != 0 || data_off != 0 || bss_off != 0)
{
/* FIXME: This code assumes gdb-stabs.h is being used; it's
- broken for xcoff, dwarf, sdb-coff, etc. But there is no
- simple canonical representation for this stuff. */
+ broken for xcoff, dwarf, sdb-coff, etc. But there is no
+ simple canonical representation for this stuff. */
- offs = ((struct section_offsets *)
- alloca (sizeof (struct section_offsets)
- + (symfile_objfile->num_sections
- * sizeof (offs->offsets))));
-
- memcpy (offs, symfile_objfile->section_offsets,
- (sizeof (struct section_offsets)
- + (symfile_objfile->num_sections
- * sizeof (offs->offsets))));
+ offs = (struct section_offsets *) alloca (SIZEOF_SECTION_OFFSETS);
+ memcpy (offs, symfile_objfile->section_offsets, SIZEOF_SECTION_OFFSETS);
ANOFFSET (offs, SECT_OFF_TEXT) = text_off;
ANOFFSET (offs, SECT_OFF_DATA) = data_off;
- ANOFFSET (offs, SECT_OFF_BSS) = bss_off;
+ ANOFFSET (offs, SECT_OFF_BSS) = bss_off;
/* First call the standard objfile_relocate. */
objfile_relocate (symfile_objfile, offs);
/* Now we need to fix up the section entries already attached to
- the exec target. These entries will control memory transfers
- from the exec file. */
+ the exec target. These entries will control memory transfers
+ from the exec file. */
exec_set_section_offsets (text_off, data_off, bss_off);
}
/* Stub for catch_errors. */
static int
-remote_start_remote_dummy (dummy)
- char *dummy;
+remote_start_remote_dummy (void *dummy)
{
start_remote (); /* Initialize gdb process mechanisms */
return 1;
remote_open_1 (name, from_tty, &remote_ops, 0);
}
+/* Just like remote_open, but with asynchronous support. */
+static void
+remote_async_open (name, from_tty)
+ char *name;
+ int from_tty;
+{
+ remote_async_open_1 (name, from_tty, &remote_async_ops, 0);
+}
+
/* Open a connection to a remote debugger using the extended
remote gdb protocol. NAME is the filename used for communication. */
char *name;
int from_tty;
{
- remote_open_1 (name, from_tty, &extended_remote_ops, 1/*extended_p*/);
+ remote_open_1 (name, from_tty, &extended_remote_ops, 1 /*extended_p */ );
+}
+
+/* Just like extended_remote_open, but with asynchronous support. */
+static void
+extended_remote_async_open (name, from_tty)
+ char *name;
+ int from_tty;
+{
+ remote_async_open_1 (name, from_tty, &extended_async_remote_ops, 1 /*extended_p */ );
}
/* Generic code for opening a connection to a remote target. */
{
if (name == 0)
error ("To open a remote debug connection, you need to specify what\n\
-serial device is attached to the remote system (e.g. /dev/ttya).");
+serial device is attached to the remote system\n\
+(e.g. /dev/ttyS0, /dev/ttya, COM1, etc.).");
+
+ /* See FIXME above */
+ wait_forever_enabled_p = 1;
target_preopen (from_tty);
}
}
-
SERIAL_RAW (remote_desc);
/* If there is something sitting in the buffer we might take it as a
puts_filtered (name);
puts_filtered ("\n");
}
- push_target (target); /* Switch to using remote target now */
-
- /* Start out by trying the 'P' request to set registers. We set
- this each time that we open a new target so that if the user
- switches from one stub to another, we can (if the target is
- closed and reopened) cope. */
- stub_supports_P = 1;
+ push_target (target); /* Switch to using remote target now */
- general_thread = -2;
+ init_packet_config (&remote_protocol_P);
+ init_packet_config (&remote_protocol_Z);
+
+ general_thread = -2;
continue_thread = -2;
/* Force remote_write_bytes to check whether target supports
binary downloading. */
- remote_binary_checked = 0;
+ init_packet_config (&remote_protocol_binary_download);
/* Without this, some commands which require an active target (such
as kill) won't work. This variable serves (at least) double duty
/* Start the remote connection; if error (0), discard this target.
In particular, if the user quits, be sure to discard it
(we'd be in an inconsistent state otherwise). */
- if (!catch_errors (remote_start_remote, NULL,
- "Couldn't establish connection to remote target\n",
+ if (!catch_errors (remote_start_remote, NULL,
+ "Couldn't establish connection to remote target\n",
RETURN_MASK_ALL))
{
pop_target ();
if (extended_p)
{
/* tell the remote that we're using the extended protocol. */
- char buf[PBUFSIZ];
+ char *buf = alloca (PBUFSIZ);
putpkt ("!");
- getpkt (buf, 0);
+ getpkt (buf, PBUFSIZ, 0);
}
}
-/* This takes a program previously attached to and detaches it. After
- this is done, GDB can be used to debug some other program. We
- better not have left any breakpoints in the target program or it'll
- die when it hits one. */
-
+/* Just like remote_open but with asynchronous support. */
static void
-remote_detach (args, from_tty)
- char *args;
+remote_async_open_1 (name, from_tty, target, extended_p)
+ char *name;
int from_tty;
+ struct target_ops *target;
+ int extended_p;
{
- char buf[PBUFSIZ];
-
- if (args)
- error ("Argument given to \"detach\" when remotely debugging.");
+ if (name == 0)
+ error ("To open a remote debug connection, you need to specify what\n\
+serial device is attached to the remote system\n\
+(e.g. /dev/ttyS0, /dev/ttya, COM1, etc.).");
- /* Tell the remote target to detach. */
- strcpy (buf, "D");
- remote_send (buf);
+ target_preopen (from_tty);
- pop_target ();
- if (from_tty)
- puts_filtered ("Ending remote debugging.\n");
-}
+ unpush_target (target);
-/* Convert hex digit A to a number. */
+ remote_dcache = dcache_init (remote_read_bytes, remote_write_bytes);
-int
-fromhex (a)
- int a;
-{
- if (a >= '0' && a <= '9')
- return a - '0';
- else if (a >= 'a' && a <= 'f')
- return a - 'a' + 10;
- else if (a >= 'A' && a <= 'F')
- return a - 'A' + 10;
- else
- error ("Reply contains invalid hex digit %d", a);
-}
+ remote_desc = SERIAL_OPEN (name);
+ if (!remote_desc)
+ perror_with_name (name);
-/* Convert number NIB to a hex digit. */
+ if (baud_rate != -1)
+ {
+ if (SERIAL_SETBAUDRATE (remote_desc, baud_rate))
+ {
+ SERIAL_CLOSE (remote_desc);
+ perror_with_name (name);
+ }
+ }
+
+ SERIAL_RAW (remote_desc);
+
+ /* If there is something sitting in the buffer we might take it as a
+ response to a command, which would be bad. */
+ SERIAL_FLUSH_INPUT (remote_desc);
+
+ if (from_tty)
+ {
+ puts_filtered ("Remote debugging using ");
+ puts_filtered (name);
+ puts_filtered ("\n");
+ }
+
+ push_target (target); /* Switch to using remote target now */
+
+ init_packet_config (&remote_protocol_P);
+ init_packet_config (&remote_protocol_Z);
+
+ general_thread = -2;
+ continue_thread = -2;
+
+ /* Force remote_write_bytes to check whether target supports
+ binary downloading. */
+ init_packet_config (&remote_protocol_binary_download);
+
+ /* Without this, some commands which require an active target (such
+ as kill) won't work. This variable serves (at least) double duty
+ as both the pid of the target process (if it has such), and as a
+ flag indicating that a target is active. These functions should
+ be split out into seperate variables, especially since GDB will
+ someday have a notion of debugging several processes. */
+ inferior_pid = MAGIC_NULL_PID;
+
+ /* With this target we start out by owning the terminal. */
+ remote_async_terminal_ours_p = 1;
+
+ /* FIXME: cagney/1999-09-23: During the initial connection it is
+ assumed that the target is already ready and able to respond to
+ requests. Unfortunatly remote_start_remote() eventually calls
+ wait_for_inferior() with no timeout. wait_forever_enabled_p gets
+ around this. Eventually a mechanism that allows
+ wait_for_inferior() to expect/get timeouts will be
+ implemented. */
+ wait_forever_enabled_p = 0;
+
+ /* Start the remote connection; if error (0), discard this target.
+ In particular, if the user quits, be sure to discard it
+ (we'd be in an inconsistent state otherwise). */
+ if (!catch_errors (remote_start_remote, NULL,
+ "Couldn't establish connection to remote target\n",
+ RETURN_MASK_ALL))
+ {
+ pop_target ();
+ wait_forever_enabled_p = 1;
+ return;
+ }
+
+ wait_forever_enabled_p = 1;
+
+ if (extended_p)
+ {
+ /* tell the remote that we're using the extended protocol. */
+ char *buf = alloca (PBUFSIZ);
+ putpkt ("!");
+ getpkt (buf, PBUFSIZ, 0);
+ }
+}
+
+/* This takes a program previously attached to and detaches it. After
+ this is done, GDB can be used to debug some other program. We
+ better not have left any breakpoints in the target program or it'll
+ die when it hits one. */
+
+static void
+remote_detach (args, from_tty)
+ char *args;
+ int from_tty;
+{
+ char *buf = alloca (PBUFSIZ);
+
+ if (args)
+ error ("Argument given to \"detach\" when remotely debugging.");
+
+ /* Tell the remote target to detach. */
+ strcpy (buf, "D");
+ remote_send (buf, PBUFSIZ);
+
+ pop_target ();
+ if (from_tty)
+ puts_filtered ("Ending remote debugging.\n");
+
+}
+
+/* Same as remote_detach, but with async support. */
+static void
+remote_async_detach (args, from_tty)
+ char *args;
+ int from_tty;
+{
+ char *buf = alloca (PBUFSIZ);
+
+ if (args)
+ error ("Argument given to \"detach\" when remotely debugging.");
+
+ /* Tell the remote target to detach. */
+ strcpy (buf, "D");
+ remote_send (buf, PBUFSIZ);
+
+ /* Unregister the file descriptor from the event loop. */
+ if (target_is_async_p ())
+ SERIAL_ASYNC (remote_desc, NULL, 0);
+
+ pop_target ();
+ if (from_tty)
+ puts_filtered ("Ending remote debugging.\n");
+}
+
+/* Convert hex digit A to a number. */
+
+int
+fromhex (a)
+ int a;
+{
+ if (a >= '0' && a <= '9')
+ return a - '0';
+ else if (a >= 'a' && a <= 'f')
+ return a - 'a' + 10;
+ else if (a >= 'A' && a <= 'F')
+ return a - 'A' + 10;
+ else
+ error ("Reply contains invalid hex digit %d", a);
+}
+
+/* Convert number NIB to a hex digit. */
static int
tohex (nib)
int nib;
{
if (nib < 10)
- return '0'+nib;
+ return '0' + nib;
else
- return 'a'+nib-10;
+ return 'a' + nib - 10;
}
\f
/* Tell the remote machine to resume. */
int pid, step;
enum target_signal siggnal;
{
- char buf[PBUFSIZ];
+ char *buf = alloca (PBUFSIZ);
if (pid == -1)
set_thread (0, 0); /* run any thread */
if (siggnal != TARGET_SIGNAL_0)
{
buf[0] = step ? 'S' : 'C';
- buf[1] = tohex (((int)siggnal >> 4) & 0xf);
- buf[2] = tohex ((int)siggnal & 0xf);
+ buf[1] = tohex (((int) siggnal >> 4) & 0xf);
+ buf[2] = tohex ((int) siggnal & 0xf);
buf[3] = '\0';
}
else
- strcpy (buf, step ? "s": "c");
+ strcpy (buf, step ? "s" : "c");
+
+ putpkt (buf);
+}
+
+/* Same as remote_resume, but with async support. */
+static void
+remote_async_resume (pid, step, siggnal)
+ int pid, step;
+ enum target_signal siggnal;
+{
+ char *buf = alloca (PBUFSIZ);
+
+ if (pid == -1)
+ set_thread (0, 0); /* run any thread */
+ else
+ set_thread (pid, 0); /* run this thread */
+
+ dcache_flush (remote_dcache);
+
+ last_sent_signal = siggnal;
+ last_sent_step = step;
+
+ /* A hook for when we need to do something at the last moment before
+ resumption. */
+ if (target_resume_hook)
+ (*target_resume_hook) ();
+ if (siggnal != TARGET_SIGNAL_0)
+ {
+ buf[0] = step ? 'S' : 'C';
+ buf[1] = tohex (((int) siggnal >> 4) & 0xf);
+ buf[2] = tohex ((int) siggnal & 0xf);
+ buf[3] = '\0';
+ }
+ else
+ strcpy (buf, step ? "s" : "c");
+
+ /* We are about to start executing the inferior, let's register it
+ with the event loop. NOTE: this is the one place where all the
+ execution commands end up. We could alternatively do this in each
+ of the execution commands in infcmd.c.*/
+ /* FIXME: ezannoni 1999-09-28: We may need to move this out of here
+ into infcmd.c in order to allow inferior function calls to work
+ NOT asynchronously. */
+ if (event_loop_p && target_can_async_p ())
+ target_async (inferior_event_handler, 0);
+ /* Tell the world that the target is now executing. */
+ /* FIXME: cagney/1999-09-23: Is it the targets responsibility to set
+ this? Instead, should the client of target just assume (for
+ async targets) that the target is going to start executing? Is
+ this information already found in the continuation block? */
+ if (target_is_async_p ())
+ target_executing = 1;
putpkt (buf);
}
\f
+
+/* Set up the signal handler for SIGINT, while the target is
+ executing, ovewriting the 'regular' SIGINT signal handler. */
+static void
+initialize_sigint_signal_handler ()
+{
+ sigint_remote_token =
+ create_async_signal_handler (async_remote_interrupt, NULL);
+ signal (SIGINT, handle_remote_sigint);
+}
+
+/* Signal handler for SIGINT, while the target is executing. */
+static void
+handle_remote_sigint (sig)
+ int sig;
+{
+ signal (sig, handle_remote_sigint_twice);
+ sigint_remote_twice_token =
+ create_async_signal_handler (async_remote_interrupt_twice, NULL);
+ mark_async_signal_handler_wrapper (sigint_remote_token);
+}
+
+/* Signal handler for SIGINT, installed after SIGINT has already been
+ sent once. It will take effect the second time that the user sends
+ a ^C. */
+static void
+handle_remote_sigint_twice (sig)
+ int sig;
+{
+ signal (sig, handle_sigint);
+ sigint_remote_twice_token =
+ create_async_signal_handler (inferior_event_handler_wrapper, NULL);
+ mark_async_signal_handler_wrapper (sigint_remote_twice_token);
+}
+
+/* Perform the real interruption of the target execution, in response
+ to a ^C. */
+static void
+async_remote_interrupt (arg)
+ gdb_client_data arg;
+{
+ if (remote_debug)
+ fprintf_unfiltered (gdb_stdlog, "remote_interrupt called\n");
+
+ target_stop ();
+}
+
+/* Perform interrupt, if the first attempt did not succeed. Just give
+ up on the target alltogether. */
+void
+async_remote_interrupt_twice (arg)
+ gdb_client_data arg;
+{
+ if (remote_debug)
+ fprintf_unfiltered (gdb_stdlog, "remote_interrupt_twice called\n");
+ /* Do something only if the target was not killed by the previous
+ cntl-C. */
+ if (target_executing)
+ {
+ interrupt_query ();
+ signal (SIGINT, handle_remote_sigint);
+ }
+}
+
+/* Reinstall the usual SIGINT handlers, after the target has
+ stopped. */
+static void
+cleanup_sigint_signal_handler (void *dummy)
+{
+ signal (SIGINT, handle_sigint);
+ if (sigint_remote_twice_token)
+ delete_async_signal_handler ((struct async_signal_handler **) & sigint_remote_twice_token);
+ if (sigint_remote_token)
+ delete_async_signal_handler ((struct async_signal_handler **) & sigint_remote_token);
+}
+
/* Send ^C to target to halt it. Target will respond, and send us a
packet. */
-
static void (*ofunc) PARAMS ((int));
/* The command line interface's stop routine. This function is installed
target_terminal_inferior ();
}
+/* Enable/disable target terminal ownership. Most targets can use
+ terminal groups to control terminal ownership. Remote targets are
+ different in that explicit transfer of ownership to/from GDB/target
+ is required. */
+
+static void
+remote_async_terminal_inferior (void)
+{
+ /* FIXME: cagney/1999-09-27: Shouldn't need to test for
+ sync_execution here. This function should only be called when
+ GDB is resuming the inferior in the forground. A background
+ resume (``run&'') should leave GDB in control of the terminal and
+ consequently should not call this code. */
+ if (!sync_execution)
+ return;
+ /* FIXME: cagney/1999-09-27: Closely related to the above. Make
+ calls target_terminal_*() idenpotent. The event-loop GDB talking
+ to an asynchronous target with a synchronous command calls this
+ function from both event-top.c and infrun.c/infcmd.c. Once GDB
+ stops trying to transfer the terminal to the target when it
+ shouldn't this guard can go away. */
+ if (!remote_async_terminal_ours_p)
+ return;
+ delete_file_handler (input_fd);
+ remote_async_terminal_ours_p = 0;
+ initialize_sigint_signal_handler ();
+ /* NOTE: At this point we could also register our selves as the
+ recipient of all input. Any characters typed could then be
+ passed on down to the target. */
+}
+
+static void
+remote_async_terminal_ours (void)
+{
+ /* See FIXME in remote_async_terminal_inferior. */
+ if (!sync_execution)
+ return;
+ /* See FIXME in remote_async_terminal_inferior. */
+ if (remote_async_terminal_ours_p)
+ return;
+ cleanup_sigint_signal_handler (NULL);
+ add_file_handler (input_fd, stdin_event_handler, 0);
+ remote_async_terminal_ours_p = 1;
+}
+
/* If nonzero, ignore the next kill. */
-int kill_kludge;
+int kill_kludge;
+
+void
+remote_console_output (char *msg)
+{
+ char *p;
+
+ for (p = msg; p[0] && p[1]; p += 2)
+ {
+ char tb[2];
+ char c = fromhex (p[0]) * 16 + fromhex (p[1]);
+ tb[0] = c;
+ tb[1] = 0;
+ fputs_unfiltered (tb, gdb_stdtarg);
+ }
+ gdb_flush (gdb_stdtarg);
+}
+
+/* Wait until the remote machine stops, then return,
+ storing status in STATUS just as `wait' would.
+ Returns "pid", which in the case of a multi-threaded
+ remote OS, is the thread-id. */
+
+static int
+remote_wait (pid, status)
+ int pid;
+ struct target_waitstatus *status;
+{
+ unsigned char *buf = alloca (PBUFSIZ);
+ int thread_num = -1;
+
+ status->kind = TARGET_WAITKIND_EXITED;
+ status->value.integer = 0;
+
+ while (1)
+ {
+ unsigned char *p;
+
+ ofunc = signal (SIGINT, remote_interrupt);
+ getpkt (buf, PBUFSIZ, 1);
+ signal (SIGINT, ofunc);
+
+ /* This is a hook for when we need to do something (perhaps the
+ collection of trace data) every time the target stops. */
+ if (target_wait_loop_hook)
+ (*target_wait_loop_hook) ();
+
+ switch (buf[0])
+ {
+ case 'E': /* Error of some sort */
+ warning ("Remote failure reply: %s", buf);
+ continue;
+ case 'T': /* Status with PC, SP, FP, ... */
+ {
+ int i;
+ long regno;
+ char regs[MAX_REGISTER_RAW_SIZE];
+
+ /* Expedited reply, containing Signal, {regno, reg} repeat */
+ /* format is: 'Tssn...:r...;n...:r...;n...:r...;#cc', where
+ ss = signal number
+ n... = register number
+ r... = register contents
+ */
+ p = &buf[3]; /* after Txx */
+
+ while (*p)
+ {
+ unsigned char *p1;
+ char *p_temp;
+
+ /* Read the register number */
+ regno = strtol ((const char *) p, &p_temp, 16);
+ p1 = (unsigned char *) p_temp;
+
+ if (p1 == p) /* No register number present here */
+ {
+ p1 = (unsigned char *) strchr ((const char *) p, ':');
+ if (p1 == NULL)
+ warning ("Malformed packet(a) (missing colon): %s\n\
+Packet: '%s'\n",
+ p, buf);
+ if (strncmp ((const char *) p, "thread", p1 - p) == 0)
+ {
+ p_temp = unpack_varlen_hex (++p1, &thread_num);
+ record_currthread (thread_num);
+ p = (unsigned char *) p_temp;
+ }
+ }
+ else
+ {
+ p = p1;
+
+ if (*p++ != ':')
+ warning ("Malformed packet(b) (missing colon): %s\n\
+Packet: '%s'\n",
+ p, buf);
+
+ if (regno >= NUM_REGS)
+ warning ("Remote sent bad register number %ld: %s\n\
+Packet: '%s'\n",
+ regno, p, buf);
+
+ for (i = 0; i < REGISTER_RAW_SIZE (regno); i++)
+ {
+ if (p[0] == 0 || p[1] == 0)
+ warning ("Remote reply is too short: %s", buf);
+ regs[i] = fromhex (p[0]) * 16 + fromhex (p[1]);
+ p += 2;
+ }
+ supply_register (regno, regs);
+ }
+
+ if (*p++ != ';')
+ {
+ warning ("Remote register badly formatted: %s", buf);
+ warning (" here: %s", p);
+ }
+ }
+ }
+ /* fall through */
+ case 'S': /* Old style status, just signal only */
+ status->kind = TARGET_WAITKIND_STOPPED;
+ status->value.sig = (enum target_signal)
+ (((fromhex (buf[1])) << 4) + (fromhex (buf[2])));
+
+ if (buf[3] == 'p')
+ {
+ /* Export Cisco kernel mode as a convenience variable
+ (so that it can be used in the GDB prompt if desired). */
+
+ if (cisco_kernel_mode == 1)
+ set_internalvar (lookup_internalvar ("cisco_kernel_mode"),
+ value_from_string ("PDEBUG-"));
+ cisco_kernel_mode = 0;
+ thread_num = strtol ((const char *) &buf[4], NULL, 16);
+ record_currthread (thread_num);
+ }
+ else if (buf[3] == 'k')
+ {
+ /* Export Cisco kernel mode as a convenience variable
+ (so that it can be used in the GDB prompt if desired). */
+
+ if (cisco_kernel_mode == 1)
+ set_internalvar (lookup_internalvar ("cisco_kernel_mode"),
+ value_from_string ("KDEBUG-"));
+ cisco_kernel_mode = 1;
+ }
+ goto got_status;
+ case 'N': /* Cisco special: status and offsets */
+ {
+ bfd_vma text_addr, data_addr, bss_addr;
+ bfd_signed_vma text_off, data_off, bss_off;
+ unsigned char *p1;
+
+ status->kind = TARGET_WAITKIND_STOPPED;
+ status->value.sig = (enum target_signal)
+ (((fromhex (buf[1])) << 4) + (fromhex (buf[2])));
+
+ if (symfile_objfile == NULL)
+ {
+ warning ("Relocation packet received with no symbol file. \
+Packet Dropped");
+ goto got_status;
+ }
+
+ /* Relocate object file. Buffer format is NAATT;DD;BB
+ * where AA is the signal number, TT is the new text
+ * address, DD * is the new data address, and BB is the
+ * new bss address. */
+
+ p = &buf[3];
+ text_addr = strtoul (p, (char **) &p1, 16);
+ if (p1 == p || *p1 != ';')
+ warning ("Malformed relocation packet: Packet '%s'", buf);
+ p = p1 + 1;
+ data_addr = strtoul (p, (char **) &p1, 16);
+ if (p1 == p || *p1 != ';')
+ warning ("Malformed relocation packet: Packet '%s'", buf);
+ p = p1 + 1;
+ bss_addr = strtoul (p, (char **) &p1, 16);
+ if (p1 == p)
+ warning ("Malformed relocation packet: Packet '%s'", buf);
+
+ if (remote_cisco_section_offsets (text_addr, data_addr, bss_addr,
+ &text_off, &data_off, &bss_off)
+ == 0)
+ if (text_off != 0 || data_off != 0 || bss_off != 0)
+ remote_cisco_objfile_relocate (text_off, data_off, bss_off);
+
+ goto got_status;
+ }
+ case 'W': /* Target exited */
+ {
+ /* The remote process exited. */
+ status->kind = TARGET_WAITKIND_EXITED;
+ status->value.integer = (fromhex (buf[1]) << 4) + fromhex (buf[2]);
+ goto got_status;
+ }
+ case 'X':
+ status->kind = TARGET_WAITKIND_SIGNALLED;
+ status->value.sig = (enum target_signal)
+ (((fromhex (buf[1])) << 4) + (fromhex (buf[2])));
+ kill_kludge = 1;
-void
-remote_console_output (msg)
- char *msg;
-{
- char *p;
+ goto got_status;
+ case 'O': /* Console output */
+ remote_console_output (buf + 1);
+ continue;
+ case '\0':
+ if (last_sent_signal != TARGET_SIGNAL_0)
+ {
+ /* Zero length reply means that we tried 'S' or 'C' and
+ the remote system doesn't support it. */
+ target_terminal_ours_for_output ();
+ printf_filtered
+ ("Can't send signals to this remote system. %s not sent.\n",
+ target_signal_to_name (last_sent_signal));
+ last_sent_signal = TARGET_SIGNAL_0;
+ target_terminal_inferior ();
- for (p = msg; *p; p +=2)
+ strcpy ((char *) buf, last_sent_step ? "s" : "c");
+ putpkt ((char *) buf);
+ continue;
+ }
+ /* else fallthrough */
+ default:
+ warning ("Invalid remote reply: %s", buf);
+ continue;
+ }
+ }
+got_status:
+ if (thread_num != -1)
{
- char tb[2];
- char c = fromhex (p[0]) * 16 + fromhex (p[1]);
- tb[0] = c;
- tb[1] = 0;
- if (target_output_hook)
- target_output_hook (tb);
- else
- fputs_filtered (tb, gdb_stdout);
+ return thread_num;
}
+ return inferior_pid;
}
-/* Wait until the remote machine stops, then return,
- storing status in STATUS just as `wait' would.
- Returns "pid", which in the case of a multi-threaded
- remote OS, is the thread-id. */
-
+/* Async version of remote_wait. */
static int
-remote_wait (pid, status)
+remote_async_wait (pid, status)
int pid;
struct target_waitstatus *status;
{
- unsigned char buf[PBUFSIZ];
+ unsigned char *buf = alloca (PBUFSIZ);
int thread_num = -1;
status->kind = TARGET_WAITKIND_EXITED;
{
unsigned char *p;
- ofunc = signal (SIGINT, remote_interrupt);
- getpkt ((char *) buf, 1);
- signal (SIGINT, ofunc);
+ if (!target_is_async_p ())
+ ofunc = signal (SIGINT, remote_interrupt);
+ /* FIXME: cagney/1999-09-27: If we're in async mode we should
+ _never_ wait for ever -> test on target_is_async_p().
+ However, before we do that we need to ensure that the caller
+ knows how to take the target into/out of async mode. */
+ getpkt (buf, PBUFSIZ, wait_forever_enabled_p);
+ if (!target_is_async_p ())
+ signal (SIGINT, ofunc);
/* This is a hook for when we need to do something (perhaps the
- collection of trace data) every time the target stops. */
+ collection of trace data) every time the target stops. */
if (target_wait_loop_hook)
(*target_wait_loop_hook) ();
/* Expedited reply, containing Signal, {regno, reg} repeat */
/* format is: 'Tssn...:r...;n...:r...;n...:r...;#cc', where
- ss = signal number
- n... = register number
- r... = register contents
- */
+ ss = signal number
+ n... = register number
+ r... = register contents
+ */
p = &buf[3]; /* after Txx */
while (*p)
/* Read the register number */
regno = strtol ((const char *) p, &p_temp, 16);
- p1 = (unsigned char *)p_temp;
+ p1 = (unsigned char *) p_temp;
- if (p1 == p) /* No register number present here */
+ if (p1 == p) /* No register number present here */
{
p1 = (unsigned char *) strchr ((const char *) p, ':');
if (p1 == NULL)
if (*p++ != ';')
{
warning ("Remote register badly formatted: %s", buf);
- warning (" here: %s",p);
+ warning (" here: %s", p);
}
}
}
if (buf[3] == 'p')
{
/* Export Cisco kernel mode as a convenience variable
- (so that it can be used in the GDB prompt if desired). */
+ (so that it can be used in the GDB prompt if desired). */
if (cisco_kernel_mode == 1)
- set_internalvar (lookup_internalvar ("cisco_kernel_mode"),
+ set_internalvar (lookup_internalvar ("cisco_kernel_mode"),
value_from_string ("PDEBUG-"));
cisco_kernel_mode = 0;
thread_num = strtol ((const char *) &buf[4], NULL, 16);
else if (buf[3] == 'k')
{
/* Export Cisco kernel mode as a convenience variable
- (so that it can be used in the GDB prompt if desired). */
+ (so that it can be used in the GDB prompt if desired). */
if (cisco_kernel_mode == 1)
- set_internalvar (lookup_internalvar ("cisco_kernel_mode"),
+ set_internalvar (lookup_internalvar ("cisco_kernel_mode"),
value_from_string ("KDEBUG-"));
cisco_kernel_mode = 1;
}
status->value.sig = (enum target_signal)
(((fromhex (buf[1])) << 4) + (fromhex (buf[2])));
- if (symfile_objfile == NULL)
+ if (symfile_objfile == NULL)
{
warning ("Relocation packet recieved with no symbol file. \
Packet Dropped");
warning ("Malformed relocation packet: Packet '%s'", buf);
p = p1 + 1;
bss_addr = strtoul (p, (char **) &p1, 16);
- if (p1 == p)
+ if (p1 == p)
warning ("Malformed relocation packet: Packet '%s'", buf);
if (remote_cisco_section_offsets (text_addr, data_addr, bss_addr,
&text_off, &data_off, &bss_off)
== 0)
- if (text_off != 0 || data_off != 0 || bss_off != 0)
+ if (text_off != 0 || data_off != 0 || bss_off != 0)
remote_cisco_objfile_relocate (text_off, data_off, bss_off);
goto got_status;
goto got_status;
case 'O': /* Console output */
remote_console_output (buf + 1);
- continue;
+ /* Return immediately to the event loop. The event loop will
+ still be waiting on the inferior afterwards. */
+ status->kind = TARGET_WAITKIND_IGNORE;
+ goto got_status;
case '\0':
if (last_sent_signal != TARGET_SIGNAL_0)
{
/* Zero length reply means that we tried 'S' or 'C' and
- the remote system doesn't support it. */
+ the remote system doesn't support it. */
target_terminal_ours_for_output ();
printf_filtered
("Can't send signals to this remote system. %s not sent.\n",
continue;
}
}
- got_status:
+got_status:
if (thread_num != -1)
{
return thread_num;
remote_fetch_registers (regno)
int regno;
{
- char buf[PBUFSIZ];
+ char *buf = alloca (PBUFSIZ);
int i;
char *p;
char regs[REGISTER_BYTES];
set_thread (inferior_pid, 1);
sprintf (buf, "g");
- remote_send (buf);
+ remote_send (buf, PBUFSIZ);
- if (remote_register_buf_size == 0)
- remote_register_buf_size = strlen (buf);
+ /* Save the size of the packet sent to us by the target. Its used
+ as a heuristic when determining the max size of packets that the
+ target can safely receive. */
+ if (actual_register_packet_size == 0)
+ actual_register_packet_size = strlen (buf);
/* Unimplemented registers read as all bits zero. */
memset (regs, 0, REGISTER_BYTES);
if (remote_debug)
fprintf_unfiltered (gdb_stdlog,
"Bad register packet; fetching a new packet\n");
- getpkt (buf, 0);
+ getpkt (buf, PBUFSIZ, 0);
}
/* Reply describes registers byte by byte, each byte encoded as two
goto supply_them;
}
if (p[0] == 'x' && p[1] == 'x')
- regs[i] = 0; /* 'x' */
+ regs[i] = 0; /* 'x' */
else
regs[i] = fromhex (p[0]) * 16 + fromhex (p[1]);
p += 2;
warning ("Remote reply is too short: %s", buf);
#endif
}
-
- supply_them:
+
+supply_them:
for (i = 0; i < NUM_REGS; i++)
- {
- supply_register (i, ®s[REGISTER_BYTE(i)]);
- if (buf[REGISTER_BYTE(i) * 2] == 'x')
- register_valid[i] = -1; /* register value not available */
- }
+ {
+ supply_register (i, ®s[REGISTER_BYTE (i)]);
+ if (buf[REGISTER_BYTE (i) * 2] == 'x')
+ register_valid[i] = -1; /* register value not available */
+ }
}
/* Prepare to store registers. Since we may send them all (using a
'G' request), we have to read out the ones we don't want to change
first. */
-static void
+static void
remote_prepare_to_store ()
{
/* Make sure the entire registers array is valid. */
- read_register_bytes (0, (char *)NULL, REGISTER_BYTES);
+ switch (remote_protocol_P.support)
+ {
+ case PACKET_DISABLE:
+ case PACKET_SUPPORT_UNKNOWN:
+ read_register_bytes (0, (char *) NULL, REGISTER_BYTES);
+ break;
+ case PACKET_ENABLE:
+ break;
+ }
+}
+
+/* Helper: Attempt to store REGNO using the P packet. Return fail IFF
+ packet was not recognized. */
+
+static int
+store_register_using_P (int regno)
+{
+ /* Try storing a single register. */
+ char *buf = alloca (PBUFSIZ);
+ char *regp;
+ char *p;
+ int i;
+
+ sprintf (buf, "P%x=", regno);
+ p = buf + strlen (buf);
+ regp = ®isters[REGISTER_BYTE (regno)];
+ for (i = 0; i < REGISTER_RAW_SIZE (regno); ++i)
+ {
+ *p++ = tohex ((regp[i] >> 4) & 0xf);
+ *p++ = tohex (regp[i] & 0xf);
+ }
+ *p = '\0';
+ remote_send (buf, PBUFSIZ);
+
+ return buf[0] != '\0';
}
+
/* Store register REGNO, or all registers if REGNO == -1, from the contents
of REGISTERS. FIXME: ignores errors. */
remote_store_registers (regno)
int regno;
{
- char buf[PBUFSIZ];
+ char *buf = alloca (PBUFSIZ);
int i;
char *p;
set_thread (inferior_pid, 1);
- if (regno >= 0 && stub_supports_P)
+ if (regno >= 0)
{
- /* Try storing a single register. */
- char *regp;
-
- sprintf (buf, "P%x=", regno);
- p = buf + strlen (buf);
- regp = ®isters[REGISTER_BYTE (regno)];
- for (i = 0; i < REGISTER_RAW_SIZE (regno); ++i)
- {
- *p++ = tohex ((regp[i] >> 4) & 0xf);
- *p++ = tohex (regp[i] & 0xf);
- }
- *p = '\0';
- remote_send (buf);
- if (buf[0] != '\0')
+ switch (remote_protocol_P.support)
{
- /* The stub understands the 'P' request. We are done. */
- return;
+ case PACKET_DISABLE:
+ break;
+ case PACKET_ENABLE:
+ if (store_register_using_P (regno))
+ return;
+ else
+ error ("Protocol error: P packet not recognized by stub");
+ case PACKET_SUPPORT_UNKNOWN:
+ if (store_register_using_P (regno))
+ {
+ /* The stub recognized the 'P' packet. Remember this. */
+ remote_protocol_P.support = PACKET_ENABLE;
+ return;
+ }
+ else
+ {
+ /* The stub does not support the 'P' packet. Use 'G'
+ instead, and don't try using 'P' in the future (it
+ will just waste our time). */
+ remote_protocol_P.support = PACKET_DISABLE;
+ break;
+ }
}
-
- /* The stub does not support the 'P' request. Use 'G' instead,
- and don't try using 'P' in the future (it will just waste our
- time). */
- stub_supports_P = 0;
}
buf[0] = 'G';
}
*p = '\0';
- remote_send (buf);
+ remote_send (buf, PBUFSIZ);
}
/* Use of the data cache *used* to be disabled because it loses for looking
/* Read a word from remote address ADDR and return it.
This goes through the data cache. */
-#if 0 /* unused? */
+#if 0 /* unused? */
static int
remote_fetch_word (addr)
CORE_ADDR addr;
{
dcache_poke (remote_dcache, addr, word);
}
-#endif /* 0 (unused?) */
-
+#endif /* 0 (unused?) */
\f
+
/* Return the number of hex digits in num. */
static int
return max (i, 1);
}
-/* Set BUF to the hex digits representing NUM. */
+/* Set BUF to the minimum number of hex digits representing NUM. */
static int
hexnumstr (buf, num)
char *buf;
ULONGEST num;
{
- int i;
int len = hexnumlen (num);
+ return hexnumnstr (buf, num, len);
+}
+
- buf[len] = '\0';
+/* Set BUF to the hex digits representing NUM, padded to WIDTH characters. */
- for (i = len - 1; i >= 0; i--)
+static int
+hexnumnstr (buf, num, width)
+ char *buf;
+ ULONGEST num;
+ int width;
+{
+ int i;
+
+ buf[width] = '\0';
+
+ for (i = width - 1; i >= 0; i--)
{
- buf[i] = "0123456789abcdef" [(num & 0xf)];
+ buf[i] = "0123456789abcdef"[(num & 0xf)];
num >>= 4;
}
- return len;
+ return width;
}
/* Mask all but the least significant REMOTE_ADDRESS_SIZE bits. */
the whole packet, since many stubs strip the eighth bit and subsequently
compute a wrong checksum, which causes real havoc with remote_write_bytes.
- NOTE: This can still lose if the serial line is not eight-bit clean. In
- cases like this, the user should clear "remotebinarydownload". */
+ NOTE: This can still lose if the serial line is not eight-bit
+ clean. In cases like this, the user should clear "remote
+ X-packet". */
+
static void
check_binary_download (addr)
CORE_ADDR addr;
{
- if (remote_binary_download && !remote_binary_checked)
+ switch (remote_protocol_binary_download.support)
{
- char buf[PBUFSIZ], *p;
- remote_binary_checked = 1;
-
- p = buf;
- *p++ = 'X';
- p += hexnumstr (p, (ULONGEST) addr);
- *p++ = ',';
- p += hexnumstr (p, (ULONGEST) 0);
- *p++ = ':';
- *p = '\0';
-
- putpkt_binary (buf, (int) (p - buf));
- getpkt (buf, 0);
-
- if (buf[0] == '\0')
- remote_binary_download = 0;
- }
+ case PACKET_DISABLE:
+ break;
+ case PACKET_ENABLE:
+ break;
+ case PACKET_SUPPORT_UNKNOWN:
+ {
+ char *buf = alloca (PBUFSIZ);
+ char *p;
+
+ p = buf;
+ *p++ = 'X';
+ p += hexnumstr (p, (ULONGEST) addr);
+ *p++ = ',';
+ p += hexnumstr (p, (ULONGEST) 0);
+ *p++ = ':';
+ *p = '\0';
+
+ putpkt_binary (buf, (int) (p - buf));
+ getpkt (buf, PBUFSIZ, 0);
- if (remote_debug)
- {
- if (remote_binary_download)
- fprintf_unfiltered (gdb_stdlog,
- "binary downloading suppported by target\n");
- else
- fprintf_unfiltered (gdb_stdlog,
- "binary downloading NOT suppported by target\n");
+ if (buf[0] == '\0')
+ {
+ if (remote_debug)
+ fprintf_unfiltered (gdb_stdlog,
+ "binary downloading NOT suppported by target\n");
+ remote_protocol_binary_download.support = PACKET_DISABLE;
+ }
+ else
+ {
+ if (remote_debug)
+ fprintf_unfiltered (gdb_stdlog,
+ "binary downloading suppported by target\n");
+ remote_protocol_binary_download.support = PACKET_ENABLE;
+ }
+ break;
+ }
}
}
MYADDR is the address of the buffer in our space.
LEN is the number of bytes.
- Returns number of bytes transferred, or 0 for error. */
+ Returns number of bytes transferred, or 0 (setting errno) for
+ error. Only transfer a single packet. */
static int
-remote_write_bytes (memaddr, myaddr, len)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
+remote_write_bytes (CORE_ADDR memaddr, char *myaddr, int len)
{
+ unsigned char *buf;
int max_buf_size; /* Max size of packet output buffer */
- int origlen;
+ unsigned char *p;
+ unsigned char *plen;
+ long sizeof_buf;
+ int plenlen;
+ int todo;
+ int nr_bytes;
/* Verify that the target can support a binary download */
check_binary_download (memaddr);
- /* Chop the transfer down if necessary */
-
- max_buf_size = min (remote_write_size, PBUFSIZ);
- if (remote_register_buf_size != 0)
- max_buf_size = min (max_buf_size, remote_register_buf_size);
+ /* Determine the max packet size. */
+ max_buf_size = get_memory_write_packet_size ();
+ sizeof_buf = max_buf_size + 1; /* Space for trailing NUL */
+ buf = alloca (sizeof_buf);
/* Subtract header overhead from max payload size - $M<memaddr>,<len>:#nn */
max_buf_size -= 2 + hexnumlen (memaddr + len - 1) + 1 + hexnumlen (len) + 4;
- origlen = len;
- while (len > 0)
- {
- unsigned char buf[PBUFSIZ];
- unsigned char *p, *plen;
- int todo;
- int i;
-
- /* construct "M"<memaddr>","<len>":" */
- /* sprintf (buf, "M%lx,%x:", (unsigned long) memaddr, todo); */
- memaddr = remote_address_masked (memaddr);
- p = buf;
- if (remote_binary_download)
- {
- *p++ = 'X';
- todo = min (len, max_buf_size);
- }
- else
- {
- *p++ = 'M';
- todo = min (len, max_buf_size / 2); /* num bytes that will fit */
- }
-
- p += hexnumstr (p, (ULONGEST) memaddr);
- *p++ = ',';
-
- plen = p; /* remember where len field goes */
- p += hexnumstr (p, (ULONGEST) todo);
- *p++ = ':';
- *p = '\0';
+ /* construct "M"<memaddr>","<len>":" */
+ /* sprintf (buf, "M%lx,%x:", (unsigned long) memaddr, todo); */
+ p = buf;
- /* We send target system values byte by byte, in increasing byte
- addresses, each byte encoded as two hex characters (or one
- binary character). */
- if (remote_binary_download)
- {
- int escaped = 0;
- for (i = 0;
- (i < todo) && (i + escaped) < (max_buf_size - 2);
- i++)
- {
- switch (myaddr[i] & 0xff)
- {
- case '$':
- case '#':
- case 0x7d:
- /* These must be escaped */
- escaped++;
- *p++ = 0x7d;
- *p++ = (myaddr[i] & 0xff) ^ 0x20;
- break;
- default:
- *p++ = myaddr[i] & 0xff;
- break;
- }
- }
-
- if (i < todo)
- {
- /* Escape chars have filled up the buffer prematurely,
- and we have actually sent fewer bytes than planned.
- Fix-up the length field of the packet. */
-
- /* FIXME: will fail if new len is a shorter string than
- old len. */
-
- plen += hexnumstr (plen, (ULONGEST) i);
- *plen++ = ':';
- }
- }
- else
+ /* Append [XM]. Compute a best guess of the number of bytes
+ actually transfered. */
+ switch (remote_protocol_binary_download.support)
+ {
+ case PACKET_ENABLE:
+ *p++ = 'X';
+ /* Best guess at number of bytes that will fit. */
+ todo = min (len, max_buf_size);
+ break;
+ case PACKET_DISABLE:
+ *p++ = 'M';
+ /* num bytes that will fit */
+ todo = min (len, max_buf_size / 2);
+ break;
+ case PACKET_SUPPORT_UNKNOWN:
+ internal_error ("remote_write_bytes: bad switch");
+ }
+
+ /* Append <memaddr> */
+ memaddr = remote_address_masked (memaddr);
+ p += hexnumstr (p, (ULONGEST) memaddr);
+ *p++ = ',';
+
+ /* Append <len>. Retain the location/size of <len>. It may
+ need to be adjusted once the packet body has been created. */
+ plen = p;
+ plenlen = hexnumstr (p, (ULONGEST) todo);
+ p += plenlen;
+ *p++ = ':';
+ *p = '\0';
+
+ /* Append the packet body. */
+ switch (remote_protocol_binary_download.support)
+ {
+ case PACKET_ENABLE:
+ /* Binary mode. Send target system values byte by byte, in
+ increasing byte addresses. Only escape certain critical
+ characters. */
+ for (nr_bytes = 0;
+ (nr_bytes < todo) && (p - buf) < (max_buf_size - 2);
+ nr_bytes++)
{
- for (i = 0; i < todo; i++)
+ switch (myaddr[nr_bytes] & 0xff)
{
- *p++ = tohex ((myaddr[i] >> 4) & 0xf);
- *p++ = tohex (myaddr[i] & 0xf);
+ case '$':
+ case '#':
+ case 0x7d:
+ /* These must be escaped */
+ *p++ = 0x7d;
+ *p++ = (myaddr[nr_bytes] & 0xff) ^ 0x20;
+ break;
+ default:
+ *p++ = myaddr[nr_bytes] & 0xff;
+ break;
}
- *p = '\0';
}
-
- putpkt_binary (buf, (int) (p - buf));
- getpkt (buf, 0);
-
- if (buf[0] == 'E')
+ if (nr_bytes < todo)
{
- /* There is no correspondance between what the remote protocol uses
- for errors and errno codes. We would like a cleaner way of
- representing errors (big enough to include errno codes, bfd_error
- codes, and others). But for now just return EIO. */
- errno = EIO;
- return 0;
+ /* Escape chars have filled up the buffer prematurely,
+ and we have actually sent fewer bytes than planned.
+ Fix-up the length field of the packet. Use the same
+ number of characters as before. */
+
+ plen += hexnumnstr (plen, (ULONGEST) nr_bytes, plenlen);
+ *plen = ':'; /* overwrite \0 from hexnumnstr() */
}
-
- /* Increment by i, not by todo, in case escape chars
- caused us to send fewer bytes than we'd planned. */
- myaddr += i;
- memaddr += i;
- len -= i;
+ break;
+ case PACKET_DISABLE:
+ /* Normal mode: Send target system values byte by byte, in
+ increasing byte addresses. Each byte is encoded as a two hex
+ value. */
+ for (nr_bytes = 0; nr_bytes < todo; nr_bytes++)
+ {
+ *p++ = tohex ((myaddr[nr_bytes] >> 4) & 0xf);
+ *p++ = tohex (myaddr[nr_bytes] & 0xf);
+ }
+ *p = '\0';
+ break;
+ case PACKET_SUPPORT_UNKNOWN:
+ internal_error ("remote_write_bytes: bad switch");
}
- return origlen;
+
+ putpkt_binary (buf, (int) (p - buf));
+ getpkt (buf, sizeof_buf, 0);
+
+ if (buf[0] == 'E')
+ {
+ /* There is no correspondance between what the remote protocol
+ uses for errors and errno codes. We would like a cleaner way
+ of representing errors (big enough to include errno codes,
+ bfd_error codes, and others). But for now just return EIO. */
+ errno = EIO;
+ return 0;
+ }
+
+ /* Return NR_BYTES, not TODO, in case escape chars caused us to send fewer
+ bytes than we'd planned. */
+ return nr_bytes;
}
/* Read memory data directly from the remote machine.
Returns number of bytes transferred, or 0 for error. */
+/* NOTE: cagney/1999-10-18: This function (and its siblings in other
+ remote targets) shouldn't attempt to read the entire buffer.
+ Instead it should read a single packet worth of data and then
+ return the byte size of that packet to the caller. The caller (its
+ caller and its callers caller ;-) already contains code for
+ handling partial reads. */
+
static int
remote_read_bytes (memaddr, myaddr, len)
CORE_ADDR memaddr;
char *myaddr;
int len;
{
+ char *buf;
int max_buf_size; /* Max size of packet output buffer */
+ long sizeof_buf;
int origlen;
- /* Chop the transfer down if necessary */
-
- max_buf_size = min (remote_write_size, PBUFSIZ);
- if (remote_register_buf_size != 0)
- max_buf_size = min (max_buf_size, remote_register_buf_size);
+ /* Create a buffer big enough for this packet. */
+ max_buf_size = get_memory_read_packet_size ();
+ sizeof_buf = max_buf_size + 1; /* Space for trailing NUL */
+ buf = alloca (sizeof_buf);
origlen = len;
while (len > 0)
{
- char buf[PBUFSIZ];
char *p;
int todo;
int i;
- todo = min (len, max_buf_size / 2); /* num bytes that will fit */
+ todo = min (len, max_buf_size / 2); /* num bytes that will fit */
/* construct "m"<memaddr>","<len>" */
/* sprintf (buf, "m%lx,%x", (unsigned long) memaddr, todo); */
*p = '\0';
putpkt (buf);
- getpkt (buf, 0);
+ getpkt (buf, sizeof_buf, 0);
if (buf[0] == 'E')
{
return 0;
}
- /* Reply describes memory byte by byte,
- each byte encoded as two hex characters. */
+ /* Reply describes memory byte by byte,
+ each byte encoded as two hex characters. */
p = buf;
for (i = 0; i < todo; i++)
char *buffer;
int mem_len;
int should_write;
- struct target_ops *target; /* ignored */
+ struct target_ops *target; /* ignored */
{
CORE_ADDR targ_addr;
int targ_len;
targ_len, should_write);
}
-
+
#if 0
/* Enable after 4.12. */
long mask_long, data_long;
long data_found_long;
CORE_ADDR addr_we_found;
- char buf[PBUFSIZ];
+ char *buf = alloca (PBUFSIZ);
long returned_long[2];
char *p;
data_long = extract_unsigned_integer (data, len);
sprintf (buf, "t%x:%x,%x", startaddr, data_long, mask_long);
putpkt (buf);
- getpkt (buf, 0);
+ getpkt (buf, PBUFSIZ, 0);
if (buf[0] == '\0')
{
/* The stub doesn't support the 't' request. We might want to
ch = SERIAL_READCHAR (remote_desc, timeout);
- switch (ch)
+ if (ch >= 0)
+ return (ch & 0x7f);
+
+ switch ((enum serial_rc) ch)
{
case SERIAL_EOF:
+ target_mourn_inferior ();
error ("Remote connection closed");
+ /* no return */
case SERIAL_ERROR:
perror_with_name ("Remote communication error");
+ /* no return */
case SERIAL_TIMEOUT:
- return ch;
- default:
- return ch & 0x7f;
+ break;
}
+ return ch;
}
/* Send the command in BUF to the remote machine, and read the reply
into BUF. Report an error if we get an error reply. */
static void
-remote_send (buf)
- char *buf;
+remote_send (char *buf,
+ long sizeof_buf)
{
putpkt (buf);
- getpkt (buf, 0);
+ getpkt (buf, sizeof_buf, 0);
if (buf[0] == 'E')
error ("Remote failure reply: %s", buf);
char *buf;
{
puts_filtered ("\"");
- while (*buf)
- gdb_printchar (*buf++, gdb_stdout, '"');
+ fputstr_filtered (buf, '"', gdb_stdout);
puts_filtered ("\"");
}
{
int i;
unsigned char csum = 0;
- char buf2[PBUFSIZ];
+ char *buf2 = alloca (cnt + 6);
+ long sizeof_junkbuf = PBUFSIZ;
+ char *junkbuf = alloca (sizeof_junkbuf);
+
int ch;
int tcount = 0;
char *p;
/* Copy the packet into buffer BUF2, encapsulating it
and giving it a checksum. */
- if (cnt > (int) sizeof (buf2) - 5) /* Prosanity check */
- abort ();
-
p = buf2;
*p++ = '$';
if (remote_debug)
{
*p = '\0';
- fprintf_unfiltered (gdb_stdlog, "Sending packet: %s...", buf2);
+ fprintf_unfiltered (gdb_stdlog, "Sending packet: ");
+ fputstrn_unfiltered (buf2, p - buf2, 0, gdb_stdlog);
+ fprintf_unfiltered (gdb_stdlog, "...");
gdb_flush (gdb_stdlog);
}
if (SERIAL_WRITE (remote_desc, buf2, p - buf2))
{
ch = readchar (remote_timeout);
- if (remote_debug)
+ if (remote_debug)
{
switch (ch)
{
case '+':
+ case '-':
case SERIAL_TIMEOUT:
case '$':
if (started_error_output)
if (remote_debug)
fprintf_unfiltered (gdb_stdlog, "Ack\n");
return 1;
+ case '-':
+ if (remote_debug)
+ fprintf_unfiltered (gdb_stdlog, "Nak\n");
case SERIAL_TIMEOUT:
- tcount ++;
+ tcount++;
if (tcount > 3)
return 0;
break; /* Retransmit buffer */
case '$':
{
- char junkbuf[PBUFSIZ];
-
- /* It's probably an old response, and we're out of sync.
- Just gobble up the packet and ignore it. */
- getpkt (junkbuf, 0);
- continue; /* Now, go look for + */
+ /* It's probably an old response, and we're out of sync.
+ Just gobble up the packet and ignore it. */
+ getpkt (junkbuf, sizeof_junkbuf, 0);
+ continue; /* Now, go look for + */
}
default:
if (remote_debug)
#if 0
/* This is wrong. If doing a long backtrace, the user should be
- able to get out next time we call QUIT, without anything as
- violent as interrupt_query. If we want to provide a way out of
- here without getting to the next QUIT, it should be based on
- hitting ^C twice as in remote_wait. */
+ able to get out next time we call QUIT, without anything as
+ violent as interrupt_query. If we want to provide a way out of
+ here without getting to the next QUIT, it should be based on
+ hitting ^C twice as in remote_wait. */
if (quit_flag)
{
quit_flag = 0;
static int remote_cisco_mode;
-static void remote_cisco_expand (src, dest)
- char *src;
- char *dest;
-{
- int i;
- int repeat;
-
- do {
- if (*src == '*')
- {
- repeat = (fromhex (src[1]) << 4) + fromhex (src[2]);
- for (i = 0; i < repeat; i++)
- {
- *dest++ = *(src-1);
- }
- src += 2;
- }
- else
- {
- *dest++ = *src;
- }
- } while (*src++);
-}
-
/* Come here after finding the start of the frame. Collect the rest
into BUF, verifying the checksum, length, and handling run-length
- compression. Returns 0 on any error, 1 on success. */
+ compression. No more than sizeof_buf-1 characters are read so that
+ the buffer can be NUL terminated.
-static int
-read_frame (buf)
- char *buf;
+ Returns -1 on error, number of characters in buffer (ignoring the
+ trailing NULL) on success. (could be extended to return one of the
+ SERIAL status indications). */
+
+static long
+read_frame (char *buf,
+ long sizeof_buf)
{
unsigned char csum;
- char *bp;
+ long bc;
int c;
csum = 0;
- bp = buf;
+ bc = 0;
while (1)
{
+ /* ASSERT (bc < sizeof_buf - 1) - space for trailing NUL */
c = readchar (remote_timeout);
-
switch (c)
{
case SERIAL_TIMEOUT:
if (remote_debug)
fputs_filtered ("Timeout in mid-packet, retrying\n", gdb_stdlog);
- return 0;
+ return -1;
case '$':
if (remote_debug)
fputs_filtered ("Saw new packet start in middle of old one\n",
gdb_stdlog);
- return 0; /* Start a new packet, count retries */
+ return -1; /* Start a new packet, count retries */
case '#':
{
unsigned char pktcsum;
- *bp = '\000';
+ buf[bc] = '\0';
pktcsum = fromhex (readchar (remote_timeout)) << 4;
pktcsum |= fromhex (readchar (remote_timeout));
if (csum == pktcsum)
- {
- if (remote_cisco_mode) /* variant run-length-encoding */
- {
- char tmp_buf[PBUFSIZ];
-
- remote_cisco_expand (buf, tmp_buf);
- strcpy (buf, tmp_buf);
- }
- return 1;
- }
+ return bc;
- if (remote_debug)
+ if (remote_debug)
{
fprintf_filtered (gdb_stdlog,
- "Bad checksum, sentsum=0x%x, csum=0x%x, buf=",
+ "Bad checksum, sentsum=0x%x, csum=0x%x, buf=",
pktcsum, csum);
fputs_filtered (buf, gdb_stdlog);
fputs_filtered ("\n", gdb_stdlog);
}
- return 0;
+ /* Number of characters in buffer ignoring trailing
+ NUL. */
+ return -1;
}
case '*': /* Run length encoding */
- if (remote_cisco_mode == 0) /* variant run-length-encoding */
- {
- csum += c;
- c = readchar (remote_timeout);
- csum += c;
- c = c - ' ' + 3; /* Compute repeat count */
+ {
+ int repeat;
+ csum += c;
- if (c > 0 && c < 255 && bp + c - 1 < buf + PBUFSIZ - 1)
- {
- memset (bp, *(bp - 1), c);
- bp += c;
- continue;
- }
+ if (remote_cisco_mode == 0)
+ {
+ c = readchar (remote_timeout);
+ csum += c;
+ repeat = c - ' ' + 3; /* Compute repeat count */
+ }
+ else
+ {
+ /* Cisco's run-length encoding variant uses two
+ hex chars to represent the repeat count. */
+
+ c = readchar (remote_timeout);
+ csum += c;
+ repeat = fromhex (c) << 4;
+ c = readchar (remote_timeout);
+ csum += c;
+ repeat += fromhex (c);
+ }
- *bp = '\0';
- printf_filtered ("Repeat count %d too large for buffer: ", c);
- puts_filtered (buf);
- puts_filtered ("\n");
- return 0;
- }
- /* else fall thru to treat like default */
+ /* The character before ``*'' is repeated. */
+
+ if (repeat > 0 && repeat <= 255
+ && bc > 0
+ && bc + repeat < sizeof_buf - 1)
+ {
+ memset (&buf[bc], buf[bc - 1], repeat);
+ bc += repeat;
+ continue;
+ }
+
+ buf[bc] = '\0';
+ printf_filtered ("Repeat count %d too large for buffer: ", repeat);
+ puts_filtered (buf);
+ puts_filtered ("\n");
+ return -1;
+ }
default:
- if (bp < buf + PBUFSIZ - 1)
+ if (bc < sizeof_buf - 1)
{
- *bp++ = c;
+ buf[bc++] = c;
csum += c;
continue;
}
- *bp = '\0';
+ buf[bc] = '\0';
puts_filtered ("Remote packet too long: ");
puts_filtered (buf);
puts_filtered ("\n");
- return 0;
- }
- }
+ return -1;
+ }
+ }
+}
+
+/* Read a packet from the remote machine, with error checking, and
+ store it in BUF. If FOREVER, wait forever rather than timing out;
+ this is used (in synchronous mode) to wait for a target that is is
+ executing user code to stop. */
+/* FIXME: ezannoni 2000-02-01 this wrapper is necessary so that we
+ don't have to change all the calls to getpkt to deal with the
+ return value, because at the moment I don't know what the right
+ thing to do it for those. */
+void
+getpkt (char *buf,
+ long sizeof_buf,
+ int forever)
+{
+ int timed_out;
+
+ timed_out = getpkt_sane (buf, sizeof_buf, forever);
}
-/* Read a packet from the remote machine, with error checking, and
- store it in BUF. BUF is expected to be of size PBUFSIZ. If
- FOREVER, wait forever rather than timing out; this is used while
- the target is executing user code. */
-void
-getpkt (buf, forever)
- char *buf;
- int forever;
+/* Read a packet from the remote machine, with error checking, and
+ store it in BUF. If FOREVER, wait forever rather than timing out;
+ this is used (in synchronous mode) to wait for a target that is is
+ executing user code to stop. If FOREVER == 0, this function is
+ allowed to time out gracefully and return an indication of this to
+ the caller. */
+int
+getpkt_sane (char *buf,
+ long sizeof_buf,
+ int forever)
{
int c;
int tries;
int timeout;
int val;
- strcpy (buf,"timeout");
+ strcpy (buf, "timeout");
if (forever)
{
for (tries = 1; tries <= MAX_TRIES; tries++)
{
/* This can loop forever if the remote side sends us characters
- continuously, but if it pauses, we'll get a zero from readchar
- because of timeout. Then we'll count that as a retry. */
+ continuously, but if it pauses, we'll get a zero from readchar
+ because of timeout. Then we'll count that as a retry. */
/* Note that we will only wait forever prior to the start of a packet.
- After that, we expect characters to arrive at a brisk pace. They
- should show up within remote_timeout intervals. */
+ After that, we expect characters to arrive at a brisk pace. They
+ should show up within remote_timeout intervals. */
do
{
if (c == SERIAL_TIMEOUT)
{
- if (forever) /* Watchdog went off. Kill the target. */
+ if (forever) /* Watchdog went off? Kill the target. */
{
+ QUIT;
target_mourn_inferior ();
error ("Watchdog has expired. Target detached.\n");
}
/* We've found the start of a packet, now collect the data. */
- val = read_frame (buf);
+ val = read_frame (buf, sizeof_buf);
- if (val == 1)
+ if (val >= 0)
{
if (remote_debug)
- fprintf_unfiltered (gdb_stdlog, "Packet received: %s\n", buf);
+ {
+ fprintf_unfiltered (gdb_stdlog, "Packet received: ");
+ fputstr_unfiltered (buf, 0, gdb_stdlog);
+ fprintf_unfiltered (gdb_stdlog, "\n");
+ }
SERIAL_WRITE (remote_desc, "+", 1);
- return;
+ return 0;
}
/* Try the whole thing again. */
printf_unfiltered ("Ignoring packet error, continuing...\n");
SERIAL_WRITE (remote_desc, "+", 1);
+ return 1;
}
\f
static void
/* Use catch_errors so the user can quit from gdb even when we aren't on
speaking terms with the remote system. */
- catch_errors ((catch_errors_ftype*) putpkt, "k", "", RETURN_MASK_ERROR);
+ catch_errors ((catch_errors_ftype *) putpkt, "k", "", RETURN_MASK_ERROR);
+
+ /* Don't wait for it to die. I'm not really sure it matters whether
+ we do or not. For the existing stubs, kill is a noop. */
+ target_mourn_inferior ();
+}
+
+/* Async version of remote_kill. */
+static void
+remote_async_kill ()
+{
+ /* Unregister the file descriptor from the event loop. */
+ if (target_is_async_p ())
+ SERIAL_ASYNC (remote_desc, NULL, 0);
+
+ /* For some mysterious reason, wait_for_inferior calls kill instead of
+ mourn after it gets TARGET_WAITKIND_SIGNALLED. Work around it. */
+ if (kill_kludge)
+ {
+ kill_kludge = 0;
+ target_mourn_inferior ();
+ return;
+ }
+
+ /* Use catch_errors so the user can quit from gdb even when we aren't on
+ speaking terms with the remote system. */
+ catch_errors ((catch_errors_ftype *) putpkt, "k", "", RETURN_MASK_ERROR);
/* Don't wait for it to die. I'm not really sure it matters whether
we do or not. For the existing stubs, kill is a noop. */
remote_mourn_1 (&remote_ops);
}
+static void
+remote_async_mourn ()
+{
+ remote_mourn_1 (&remote_async_ops);
+}
+
static void
extended_remote_mourn ()
{
proceed (-1, TARGET_SIGNAL_0, 0);
}
+/* Async version of extended_remote_create_inferior. */
+static void
+extended_remote_async_create_inferior (exec_file, args, env)
+ char *exec_file;
+ char *args;
+ char **env;
+{
+ /* Rip out the breakpoints; we'll reinsert them after restarting
+ the remote server. */
+ remove_breakpoints ();
+
+ /* If running asynchronously, register the target file descriptor
+ with the event loop. */
+ if (event_loop_p && target_can_async_p ())
+ target_async (inferior_event_handler, 0);
+
+ /* Now restart the remote server. */
+ extended_remote_restart ();
+
+ /* Now put the breakpoints back in. This way we're safe if the
+ restart function works via a unix fork on the remote side. */
+ insert_breakpoints ();
+
+ /* Clean up from the last time we were running. */
+ clear_proceed_status ();
+
+ /* Let the remote process run. */
+ proceed (-1, TARGET_SIGNAL_0, 0);
+}
\f
+
/* On some machines, e.g. 68k, we may use a different breakpoint instruction
than other targets; in those use REMOTE_BREAKPOINT instead of just
BREAKPOINT. Also, bi-endian targets may define LITTLE_REMOTE_BREAKPOINT
{
#ifdef REMOTE_BREAKPOINT
int val;
+#endif
+ int bp_size;
+
+ /* Try the "Z" packet if it is not already disabled.
+ If it succeeds, then set the support to PACKET_ENABLE.
+ If it fails, and the user has explicitly requested the Z support
+ then report an error, otherwise, mark it disabled and go on. */
+
+ if ((remote_protocol_Z.support == PACKET_ENABLE)
+ || (remote_protocol_Z.support == PACKET_SUPPORT_UNKNOWN))
+ {
+ char *buf = alloca (PBUFSIZ);
+ char *p = buf;
+
+ addr = remote_address_masked (addr);
+ *(p++) = 'Z';
+ *(p++) = '0';
+ *(p++) = ',';
+ p += hexnumstr (p, (ULONGEST) addr);
+ BREAKPOINT_FROM_PC (&addr, &bp_size);
+ sprintf (p, ",%d", bp_size);
+
+ putpkt (buf);
+ getpkt (buf, PBUFSIZ, 0);
+
+ if (buf[0] != '\0')
+ {
+ remote_protocol_Z.support = PACKET_ENABLE;
+ return (buf[0] == 'E');
+ }
+
+ /* The stub does not support the 'Z' request. If the user has
+ explicitly requested the Z support, or if the stub previously
+ said it supported the packet, this is an error,
+ otherwise, mark it disabled. */
+
+ else if (remote_protocol_Z.support == PACKET_ENABLE)
+ {
+ error ("Protocol error: Z packet not recognized by stub");
+ }
+ else
+ {
+ remote_protocol_Z.support = PACKET_DISABLE;
+ }
+ }
+#ifdef REMOTE_BREAKPOINT
val = target_read_memory (addr, contents_cache, sizeof big_break_insn);
if (val == 0)
CORE_ADDR addr;
char *contents_cache;
{
+ int bp_size;
+
+ if ((remote_protocol_Z.support == PACKET_ENABLE)
+ || (remote_protocol_Z.support == PACKET_SUPPORT_UNKNOWN))
+ {
+ char *buf = alloca (PBUFSIZ);
+ char *p = buf;
+
+ *(p++) = 'z';
+ *(p++) = '0';
+ *(p++) = ',';
+
+ addr = remote_address_masked (addr);
+ p += hexnumstr (p, (ULONGEST) addr);
+ BREAKPOINT_FROM_PC (&addr, &bp_size);
+ sprintf (p, ",%d", bp_size);
+
+ putpkt (buf);
+ getpkt (buf, PBUFSIZ, 0);
+
+ return (buf[0] == 'E');
+ }
+
#ifdef REMOTE_BREAKPOINT
return target_write_memory (addr, contents_cache, sizeof big_break_insn);
#else
#endif /* REMOTE_BREAKPOINT */
}
+#ifdef TARGET_HAS_HARDWARE_WATCHPOINTS
+int
+remote_insert_watchpoint (addr, len, type)
+ CORE_ADDR addr;
+ int len;
+ int type;
+{
+ char *buf = alloca (PBUFSIZ);
+ char *p;
+
+ if (remote_protocol_Z.support == PACKET_DISABLE)
+ error ("Can't set hardware watchpoints without the 'Z' packet\n");
+
+ sprintf (buf, "Z%x,", type + 2 );
+ p = strchr (buf, '\0');
+ addr = remote_address_masked (addr);
+ p += hexnumstr (p, (ULONGEST) addr);
+ sprintf (p, ",%x", len);
+
+ putpkt (buf);
+ getpkt (buf, PBUFSIZ, 0);
+
+ if (buf[0] == '\0' || buf [0] == 'E')
+ return -1;
+
+ return 0;
+}
+
+int
+remote_remove_watchpoint (addr, len, type)
+ CORE_ADDR addr;
+ int len;
+ int type;
+{
+ char *buf = alloca (PBUFSIZ);
+ char *p;
+
+ sprintf (buf, "z%x,", type + 2 );
+ p = strchr (buf, '\0');
+ addr = remote_address_masked (addr);
+ p += hexnumstr (p, (ULONGEST) addr);
+ sprintf (p, ",%x", len);
+ putpkt (buf);
+ getpkt (buf, PBUFSIZ, 0);
+
+ if (buf[0] == '\0' || buf [0] == 'E')
+ return -1;
+
+ return 0;
+}
+
+int
+remote_insert_hw_breakpoint (addr, len)
+ CORE_ADDR addr;
+ int len;
+{
+ char *buf = alloca (PBUFSIZ);
+ char *p = buf;
+
+ if (remote_protocol_Z.support == PACKET_DISABLE)
+ error ("Can't set hardware breakpoints without the 'Z' packet\n");
+
+ *(p++) = 'Z';
+ *(p++) = '1';
+ *(p++) = ',';
+
+ addr = remote_address_masked (addr);
+ p += hexnumstr (p, (ULONGEST) addr);
+ *p = '\0';
+
+ putpkt (buf);
+ getpkt (buf, PBUFSIZ, 0);
+
+ if (buf[0] == '\0' || buf [0] == 'E')
+ return -1;
+
+ return 0;
+}
+
+int
+remote_remove_hw_breakpoint (addr, len)
+ CORE_ADDR addr;
+ int len;
+{
+ char *buf = alloca (PBUFSIZ);
+ char *p = buf;
+
+ *(p++) = 'z';
+ *(p++) = '1';
+ *(p++) = ',';
+
+ addr = remote_address_masked (addr);
+ p += hexnumstr (p, (ULONGEST) addr);
+ *p = '\0';
+
+ putpkt(buf);
+ getpkt (buf, PBUFSIZ, 0);
+
+ if (buf[0] == '\0' || buf [0] == 'E')
+ return -1;
+
+ return 0;
+}
+#endif
+
/* Some targets are only capable of doing downloads, and afterwards
they switch to the remote serial protocol. This function provides
a clean way to get from the download target to the remote target.
/* Table used by the crc32 function to calcuate the checksum. */
-static unsigned long crc32_table[256] = {0, 0};
+static unsigned long crc32_table[256] =
+{0, 0};
static unsigned long
crc32 (buf, len, crc)
int len;
unsigned int crc;
{
- if (! crc32_table[1])
+ if (!crc32_table[1])
{
/* Initialize the CRC table and the decoding table. */
int i, j;
unsigned int c;
for (i = 0; i < 256; i++)
- {
- for (c = i << 24, j = 8; j > 0; --j)
- c = c & 0x80000000 ? (c << 1) ^ 0x04c11db7 : (c << 1);
- crc32_table[i] = c;
- }
+ {
+ for (c = i << 24, j = 8; j > 0; --j)
+ c = c & 0x80000000 ? (c << 1) ^ 0x04c11db7 : (c << 1);
+ crc32_table[i] = c;
+ }
}
while (len--)
Useful for verifying the image on the target against the exec file.
Depends on the target understanding the new "qCRC:" request. */
+/* FIXME: cagney/1999-10-26: This command should be broken down into a
+ target method (target verify memory) and generic version of the
+ actual command. This will allow other high-level code (especially
+ generic_load()) to make use of this target functionality. */
+
static void
compare_sections_command (args, from_tty)
char *args;
unsigned long host_crc, target_crc;
extern bfd *exec_bfd;
struct cleanup *old_chain;
- char *tmp, *sectdata, *sectname, buf[PBUFSIZ];
+ char *tmp;
+ char *sectdata;
+ char *sectname;
+ char *buf = alloca (PBUFSIZ);
bfd_size_type size;
bfd_vma lma;
int matched = 0;
strcmp (current_target.to_shortname, "remote") != 0)
error ("command can only be used with remote target");
- for (s = exec_bfd->sections; s; s = s->next)
+ for (s = exec_bfd->sections; s; s = s->next)
{
if (!(s->flags & SEC_LOAD))
- continue; /* skip non-loadable section */
+ continue; /* skip non-loadable section */
size = bfd_get_section_size_before_reloc (s);
if (size == 0)
- continue; /* skip zero-length section */
+ continue; /* skip zero-length section */
sectname = (char *) bfd_get_section_name (exec_bfd, s);
if (args && strcmp (args, sectname) != 0)
- continue; /* not the section selected by user */
+ continue; /* not the section selected by user */
- matched = 1; /* do this section */
+ matched = 1; /* do this section */
lma = s->lma;
/* FIXME: assumes lma can fit into long */
sprintf (buf, "qCRC:%lx,%lx", (long) lma, (long) size);
bfd_get_section_contents (exec_bfd, s, sectdata, 0, size);
host_crc = crc32 ((unsigned char *) sectdata, size, 0xffffffff);
- getpkt (buf, 0);
+ getpkt (buf, PBUFSIZ, 0);
if (buf[0] == 'E')
error ("target memory fault, section %s, range 0x%08x -- 0x%08x",
sectname, lma, lma + size);
for (target_crc = 0, tmp = &buf[1]; *tmp; tmp++)
target_crc = target_crc * 16 + fromhex (*tmp);
- printf_filtered ("Section %s, range 0x%08x -- 0x%08x: ",
- sectname, lma, lma + size);
+ printf_filtered ("Section %s, range 0x%s -- 0x%s: ",
+ sectname, paddr (lma), paddr (lma + size));
if (host_crc == target_crc)
printf_filtered ("matched.\n");
else
- {
- printf_filtered ("MIS-MATCHED!\n");
- mismatched++;
- }
+ {
+ printf_filtered ("MIS-MATCHED!\n");
+ mismatched++;
+ }
do_cleanups (old_chain);
}
int *bufsiz;
{
int i;
- char buf2[PBUFSIZ];
+ char *buf2 = alloca (PBUFSIZ);
char *p2 = &buf2[0];
- char *p = buf;
- if (! bufsiz)
+ if (!bufsiz)
error ("null pointer to remote bufer size specified");
/* minimum outbuf size is PBUFSIZ - if bufsiz is not large enough let
the caller know and return what the minimum size is */
/* Note: a zero bufsiz can be used to query the minimum buffer size */
- if ( *bufsiz < PBUFSIZ )
+ if (*bufsiz < PBUFSIZ)
{
*bufsiz = PBUFSIZ;
return -1;
}
/* except for querying the minimum buffer size, target must be open */
- if (! remote_desc)
+ if (!remote_desc)
error ("remote query is only available after target open");
/* we only take uppercase letters as query types, at least for now */
- if ( (query_type < 'A') || (query_type > 'Z') )
+ if ((query_type < 'A') || (query_type > 'Z'))
error ("invalid remote query type");
- if (! buf)
+ if (!buf)
error ("null remote query specified");
- if (! outbuf)
+ if (!outbuf)
error ("remote query requires a buffer to receive data");
outbuf[0] = '\0';
plus one extra in case we are debugging (remote_debug),
we have PBUFZIZ - 7 left to pack the query string */
i = 0;
- while ( buf[i] && (i < (PBUFSIZ - 8)) )
+ while (buf[i] && (i < (PBUFSIZ - 8)))
{
/* bad caller may have sent forbidden characters */
- if ( (!isprint(buf[i])) || (buf[i] == '$') || (buf[i] == '#') )
- error ("illegal characters in query string");
+ if ((!isprint (buf[i])) || (buf[i] == '$') || (buf[i] == '#'))
+ error ("illegal characters in query string");
*p2++ = buf[i];
i++;
}
*p2 = buf[i];
- if ( buf[i] )
+ if (buf[i])
error ("query larger than available buffer");
i = putpkt (buf2);
- if ( i < 0 ) return i;
+ if (i < 0)
+ return i;
- getpkt (outbuf, 0);
+ getpkt (outbuf, *bufsiz, 0);
return 0;
}
+static void
+remote_rcmd (char *command,
+ struct ui_file *outbuf)
+{
+ int i;
+ char *buf = alloca (PBUFSIZ);
+ char *p = buf;
+
+ if (!remote_desc)
+ error ("remote rcmd is only available after target open");
+
+ /* Send a NULL command across as an empty command */
+ if (command == NULL)
+ command = "";
+
+ /* The query prefix */
+ strcpy (buf, "qRcmd,");
+ p = strchr (buf, '\0');
+
+ if ((strlen (buf) + strlen (command) * 2 + 8/*misc*/) > PBUFSIZ)
+ error ("\"monitor\" command ``%s'' is too long\n", command);
+
+ /* Encode the actual command */
+ for (i = 0; command[i]; i++)
+ {
+ *p++ = tohex ((command[i] >> 4) & 0xf);
+ *p++ = tohex (command[i] & 0xf);
+ }
+ *p = '\0';
+
+ if (putpkt (buf) < 0)
+ error ("Communication problem with target\n");
+
+ /* get/display the response */
+ while (1)
+ {
+ /* XXX - see also tracepoint.c:remote_get_noisy_reply() */
+ buf[0] = '\0';
+ getpkt (buf, PBUFSIZ, 0);
+ if (buf[0] == '\0')
+ error ("Target does not support this command\n");
+ if (buf[0] == 'O' && buf[1] != 'K')
+ {
+ remote_console_output (buf + 1); /* 'O' message from stub */
+ continue;
+ }
+ if (strcmp (buf, "OK") == 0)
+ break;
+ if (strlen (buf) == 3 && buf[0] == 'E'
+ && isdigit (buf[1]) && isdigit (buf[2]))
+ {
+ error ("Protocol error with Rcmd");
+ }
+ for (p = buf; p[0] != '\0' && p[1] != '\0'; p += 2)
+ {
+ char c = (fromhex (p[0]) << 4) + fromhex (p[1]);
+ fputc_unfiltered (c, outbuf);
+ }
+ break;
+ }
+}
+
static void
packet_command (args, from_tty)
char *args;
int from_tty;
{
- char buf[PBUFSIZ];
+ char *buf = alloca (PBUFSIZ);
- if (! remote_desc)
+ if (!remote_desc)
error ("command can only be used with remote target");
- if (! args)
+ if (!args)
error ("remote-packet command requires packet text as argument");
puts_filtered ("sending: ");
puts_filtered ("\n");
putpkt (args);
- getpkt (buf, 0);
+ getpkt (buf, PBUFSIZ, 0);
puts_filtered ("received: ");
print_packet (buf);
puts_filtered ("\n");
#if 0
/* --------- UNIT_TEST for THREAD oriented PACKETS ------------------------- */
-static void display_thread_info PARAMS ((struct gdb_ext_thread_info *info));
+static void display_thread_info PARAMS ((struct gdb_ext_thread_info * info));
static void threadset_test_cmd PARAMS ((char *cmd, int tty));
static void threadlist_test_cmd PARAMS ((char *cmd, int tty));
-int get_and_display_threadinfo PARAMS ((threadref *ref));
+int get_and_display_threadinfo PARAMS ((threadref * ref));
static void threadinfo_test_cmd PARAMS ((char *cmd, int tty));
-static int thread_display_step PARAMS ((threadref *ref, void *context));
+static int thread_display_step PARAMS ((threadref * ref, void *context));
static void threadlist_update_test_cmd PARAMS ((char *cmd, int tty));
static void init_remote_threadtests PARAMS ((void));
-#define SAMPLE_THREAD 0x05060708 /* Truncated 64 bit threadid */
+#define SAMPLE_THREAD 0x05060708 /* Truncated 64 bit threadid */
static void
threadset_test_cmd (cmd, tty)
static void
init_remote_ops ()
{
- remote_ops.to_shortname = "remote";
+ remote_ops.to_shortname = "remote";
remote_ops.to_longname = "Remote serial target in gdb-specific protocol";
- remote_ops.to_doc =
+ remote_ops.to_doc =
"Use a remote computer via a serial line, using a gdb-specific protocol.\n\
-Specify the serial device it is connected to (e.g. /dev/ttya).";
- remote_ops.to_open = remote_open;
- remote_ops.to_close = remote_close;
+Specify the serial device it is connected to\n\
+(e.g. /dev/ttyS0, /dev/ttya, COM1, etc.).";
+ remote_ops.to_open = remote_open;
+ remote_ops.to_close = remote_close;
remote_ops.to_detach = remote_detach;
- remote_ops.to_resume = remote_resume;
+ remote_ops.to_resume = remote_resume;
remote_ops.to_wait = remote_wait;
remote_ops.to_fetch_registers = remote_fetch_registers;
remote_ops.to_store_registers = remote_store_registers;
remote_ops.to_prepare_to_store = remote_prepare_to_store;
- remote_ops.to_xfer_memory = remote_xfer_memory;
- remote_ops.to_files_info = remote_files_info;
+ remote_ops.to_xfer_memory = remote_xfer_memory;
+ remote_ops.to_files_info = remote_files_info;
remote_ops.to_insert_breakpoint = remote_insert_breakpoint;
remote_ops.to_remove_breakpoint = remote_remove_breakpoint;
- remote_ops.to_kill = remote_kill;
- remote_ops.to_load = generic_load;
+ remote_ops.to_kill = remote_kill;
+ remote_ops.to_load = generic_load;
remote_ops.to_mourn_inferior = remote_mourn;
remote_ops.to_thread_alive = remote_thread_alive;
remote_ops.to_find_new_threads = remote_threads_info;
remote_ops.to_stop = remote_stop;
remote_ops.to_query = remote_query;
+ remote_ops.to_rcmd = remote_rcmd;
remote_ops.to_stratum = process_stratum;
- remote_ops.to_has_all_memory = 1;
- remote_ops.to_has_memory = 1;
- remote_ops.to_has_stack = 1;
- remote_ops.to_has_registers = 1;
- remote_ops.to_has_execution = 1;
- remote_ops.to_has_thread_control = tc_schedlock; /* can lock scheduler */
- remote_ops.to_magic = OPS_MAGIC;
+ remote_ops.to_has_all_memory = 1;
+ remote_ops.to_has_memory = 1;
+ remote_ops.to_has_stack = 1;
+ remote_ops.to_has_registers = 1;
+ remote_ops.to_has_execution = 1;
+ remote_ops.to_has_thread_control = tc_schedlock; /* can lock scheduler */
+ remote_ops.to_magic = OPS_MAGIC;
}
/* Set up the extended remote vector by making a copy of the standard
extended_remote_ops = remote_ops;
extended_remote_ops.to_shortname = "extended-remote";
- extended_remote_ops.to_longname =
+ extended_remote_ops.to_longname =
"Extended remote serial target in gdb-specific protocol";
- extended_remote_ops.to_doc =
+ extended_remote_ops.to_doc =
"Use a remote computer via a serial line, using a gdb-specific protocol.\n\
Specify the serial device it is connected to (e.g. /dev/ttya).",
- extended_remote_ops.to_open = extended_remote_open;
+ extended_remote_ops.to_open = extended_remote_open;
extended_remote_ops.to_create_inferior = extended_remote_create_inferior;
extended_remote_ops.to_mourn_inferior = extended_remote_mourn;
}
*/
static void
-remote_info_process (args, from_tty)
- char *args;
- int from_tty;
+remote_info_process (char *args, int from_tty)
{
- char buf[PBUFSIZ];
+ char *buf = alloca (PBUFSIZ);
if (remote_desc == 0)
error ("Command can only be used when connected to the remote target.");
putpkt ("qfProcessInfo");
- getpkt (buf, 0);
+ getpkt (buf, PBUFSIZ, 0);
if (buf[0] == 0)
- return; /* Silently: target does not support this feature. */
+ return; /* Silently: target does not support this feature. */
if (buf[0] == 'E')
error ("info proc: target error.");
- while (buf[0] == 'O') /* Capitol-O packet */
+ while (buf[0] == 'O') /* Capitol-O packet */
{
remote_console_output (&buf[1]);
putpkt ("qsProcessInfo");
- getpkt (buf, 0);
+ getpkt (buf, PBUFSIZ, 0);
}
}
*/
static void
-remote_cisco_open (name, from_tty)
- char *name;
- int from_tty;
+remote_cisco_open (char *name, int from_tty)
{
if (name == 0)
error (
-"To open a remote debug connection, you need to specify what \n\
+ "To open a remote debug connection, you need to specify what \n\
device is attached to the remote system (e.g. host:port).");
+ /* See FIXME above */
+ wait_forever_enabled_p = 1;
+
target_preopen (from_tty);
unpush_target (&remote_cisco_ops);
*/
baud_rate = (baud_rate > 0) ? baud_rate : 9600;
- if (SERIAL_SETBAUDRATE (remote_desc, baud_rate))
+ if (SERIAL_SETBAUDRATE (remote_desc, baud_rate))
{
SERIAL_CLOSE (remote_desc);
perror_with_name (name);
push_target (&remote_cisco_ops); /* Switch to using cisco target now */
- /* Start out by trying the 'P' request to set registers. We set this each
- time that we open a new target so that if the user switches from one
- stub to another, we can (if the target is closed and reopened) cope. */
- stub_supports_P = 1;
+ init_packet_config (&remote_protocol_P);
+ init_packet_config (&remote_protocol_Z);
- general_thread = -2;
+ general_thread = -2;
continue_thread = -2;
/* Force remote_write_bytes to check whether target supports
binary downloading. */
- remote_binary_checked = 0;
+ init_packet_config (&remote_protocol_binary_download);
/* Without this, some commands which require an active target (such
as kill) won't work. This variable serves (at least) double duty
/* Start the remote connection; if error (0), discard this target. */
- if (!catch_errors (remote_start_remote_dummy, (char *) 0,
- "Couldn't establish connection to remote target\n",
+ if (!catch_errors (remote_start_remote_dummy, (char *) 0,
+ "Couldn't establish connection to remote target\n",
RETURN_MASK_ALL))
{
pop_target ();
}
static void
-remote_cisco_close (quitting)
- int quitting;
+remote_cisco_close (int quitting)
{
remote_cisco_mode = 0;
remote_close (quitting);
}
-static void
-remote_cisco_mourn PARAMS ((void))
+static void
+ remote_cisco_mourn
+PARAMS ((void))
{
remote_mourn_1 (&remote_cisco_ops);
}
-enum {
- READ_MORE,
- FATAL_ERROR,
- ENTER_DEBUG,
+enum
+{
+ READ_MORE,
+ FATAL_ERROR,
+ ENTER_DEBUG,
DISCONNECT_TELNET
-} minitelnet_return;
+}
+minitelnet_return;
/* shared between readsocket() and readtty() */
static char *tty_input;
extern int quit_flag;
static int
-readsocket ()
+readsocket (void)
{
int data;
/* Loop until the socket doesn't have any more data */
- while ((data = readchar (0)) >= 0)
+ while ((data = readchar (0)) >= 0)
{
/* Check for the escape sequence */
- if (data == '|')
+ if (data == '|')
{
/* If this is the fourth escape, get out */
- if (++escape_count == 4)
+ if (++escape_count == 4)
{
return ENTER_DEBUG;
}
- else
- { /* This is a '|', but not the fourth in a row.
- Continue without echoing it. If it isn't actually
- one of four in a row, it'll be echoed later. */
+ else
+ { /* This is a '|', but not the fourth in a row.
+ Continue without echoing it. If it isn't actually
+ one of four in a row, it'll be echoed later. */
continue;
}
}
- else /* Not a '|' */
- {
+ else
+ /* Not a '|' */
+ {
/* Ensure any pending '|'s are flushed. */
- for ( ; escape_count > 0; escape_count--)
- putchar('|');
+ for (; escape_count > 0; escape_count--)
+ putchar ('|');
}
-
- if (data == '\r') /* If this is a return character, */
- continue; /* - just supress it. */
- if (echo_check != -1) /* Check for echo of user input. */
+ if (data == '\r') /* If this is a return character, */
+ continue; /* - just supress it. */
+
+ if (echo_check != -1) /* Check for echo of user input. */
{
if (tty_input[echo_check] == data)
{
- echo_check++; /* Character matched user input: */
- continue; /* Continue without echoing it. */
+ echo_check++; /* Character matched user input: */
+ continue; /* Continue without echoing it. */
}
- else if ((data == '\n') && (tty_input[echo_check] == '\r'))
- { /* End of the line (and of echo checking). */
- echo_check = -1; /* No more echo supression */
- continue; /* Continue without echoing. */
+ else if ((data == '\n') && (tty_input[echo_check] == '\r'))
+ { /* End of the line (and of echo checking). */
+ echo_check = -1; /* No more echo supression */
+ continue; /* Continue without echoing. */
}
else
- { /* Failed check for echo of user input.
- We now have some suppressed output to flush! */
+ { /* Failed check for echo of user input.
+ We now have some suppressed output to flush! */
int j;
- for (j = 0; j < echo_check; j++)
+ for (j = 0; j < echo_check; j++)
putchar (tty_input[j]);
echo_check = -1;
}
}
- putchar (data); /* Default case: output the char. */
+ putchar (data); /* Default case: output the char. */
}
- if (data == SERIAL_TIMEOUT) /* Timeout returned from readchar. */
- return READ_MORE; /* Try to read some more */
- else
- return FATAL_ERROR; /* Trouble, bail out */
+ if (data == SERIAL_TIMEOUT) /* Timeout returned from readchar. */
+ return READ_MORE; /* Try to read some more */
+ else
+ return FATAL_ERROR; /* Trouble, bail out */
}
static int
-readtty ()
+readtty (void)
{
- int status;
int tty_bytecount;
/* First, read a buffer full from the terminal */
tty_bytecount = read (fileno (stdin), tty_input, sizeof (tty_input) - 1);
- if (tty_bytecount == -1)
+ if (tty_bytecount == -1)
{
perror ("readtty: read failed");
return FATAL_ERROR;
if (tty_input[tty_bytecount - 1] == '\n' &&
tty_input[tty_bytecount - 2] == '\\') /* line ending in backslash */
{
- tty_input[--tty_bytecount] = 0; /* remove newline */
- tty_input[--tty_bytecount] = 0; /* remove backslash */
+ tty_input[--tty_bytecount] = 0; /* remove newline */
+ tty_input[--tty_bytecount] = 0; /* remove backslash */
}
/* Turn trailing newlines into returns */
if (tty_input[tty_bytecount - 1] == '\n')
- tty_input[tty_bytecount - 1] = '\r';
+ tty_input[tty_bytecount - 1] = '\r';
/* If the line consists of a ~, enter debugging mode. */
if ((tty_input[0] == '~') && (tty_bytecount == 2))
/* Make this a zero terminated string and write it out */
tty_input[tty_bytecount] = 0;
- if (SERIAL_WRITE (remote_desc, tty_input, tty_bytecount))
+ if (SERIAL_WRITE (remote_desc, tty_input, tty_bytecount))
{
perror_with_name ("readtty: write failed");
return FATAL_ERROR;
}
static int
-minitelnet ()
+minitelnet (void)
{
fd_set input; /* file descriptors for select */
- int tablesize; /* max number of FDs for select */
- int status;
- int quit_count = 0;
+ int tablesize; /* max number of FDs for select */
+ int status;
+ int quit_count = 0;
extern int escape_count; /* global shared by readsocket */
extern int echo_check; /* ditto */
escape_count = 0;
- echo_check = -1;
+ echo_check = -1;
tablesize = 8 * sizeof (input);
- for (;;)
+ for (;;)
{
/* Check for anything from our socket - doesn't block. Note that
- this must be done *before* the select as there may be
- buffered I/O waiting to be processed. */
+ this must be done *before* the select as there may be
+ buffered I/O waiting to be processed. */
- if ((status = readsocket ()) == FATAL_ERROR)
+ if ((status = readsocket ()) == FATAL_ERROR)
{
error ("Debugging terminated by communications error");
}
- else if (status != READ_MORE)
+ else if (status != READ_MORE)
{
return (status);
}
- fflush(stdout); /* Flush output before blocking */
+ fflush (stdout); /* Flush output before blocking */
/* Now block on more socket input or TTY input */
-
+
FD_ZERO (&input);
- FD_SET (fileno(stdin), &input);
- FD_SET (remote_desc->fd, &input);
+ FD_SET (fileno (stdin), &input);
+ FD_SET (DEPRECATED_SERIAL_FD (remote_desc), &input);
status = select (tablesize, &input, 0, 0, 0);
- if ((status == -1) && (errno != EINTR))
+ if ((status == -1) && (errno != EINTR))
{
error ("Communications error on select %d", errno);
}
/* Handle Control-C typed */
- if (quit_flag)
+ if (quit_flag)
{
if ((++quit_count) == 2)
{
/* Handle console input */
- if (FD_ISSET (fileno (stdin), &input))
+ if (FD_ISSET (fileno (stdin), &input))
{
quit_count = 0;
echo_check = 0;
}
static int
-remote_cisco_wait (pid, status)
- int pid;
- struct target_waitstatus *status;
+remote_cisco_wait (int pid, struct target_waitstatus *status)
{
- if (minitelnet() != ENTER_DEBUG)
+ if (minitelnet () != ENTER_DEBUG)
{
error ("Debugging session terminated by protocol error");
}
init_remote_cisco_ops ()
{
remote_cisco_ops.to_shortname = "cisco";
- remote_cisco_ops.to_longname = "Remote serial target in cisco-specific protocol";
- remote_cisco_ops.to_doc =
+ remote_cisco_ops.to_longname = "Remote serial target in cisco-specific protocol";
+ remote_cisco_ops.to_doc =
"Use a remote machine via TCP, using a cisco-specific protocol.\n\
Specify the serial device it is connected to (e.g. host:2020).";
- remote_cisco_ops.to_open = remote_cisco_open;
- remote_cisco_ops.to_close = remote_cisco_close;
- remote_cisco_ops.to_detach = remote_detach;
- remote_cisco_ops.to_resume = remote_resume;
- remote_cisco_ops.to_wait = remote_cisco_wait;
- remote_cisco_ops.to_fetch_registers = remote_fetch_registers;
- remote_cisco_ops.to_store_registers = remote_store_registers;
- remote_cisco_ops.to_prepare_to_store = remote_prepare_to_store;
- remote_cisco_ops.to_xfer_memory = remote_xfer_memory;
- remote_cisco_ops.to_files_info = remote_files_info;
+ remote_cisco_ops.to_open = remote_cisco_open;
+ remote_cisco_ops.to_close = remote_cisco_close;
+ remote_cisco_ops.to_detach = remote_detach;
+ remote_cisco_ops.to_resume = remote_resume;
+ remote_cisco_ops.to_wait = remote_cisco_wait;
+ remote_cisco_ops.to_fetch_registers = remote_fetch_registers;
+ remote_cisco_ops.to_store_registers = remote_store_registers;
+ remote_cisco_ops.to_prepare_to_store = remote_prepare_to_store;
+ remote_cisco_ops.to_xfer_memory = remote_xfer_memory;
+ remote_cisco_ops.to_files_info = remote_files_info;
remote_cisco_ops.to_insert_breakpoint = remote_insert_breakpoint;
remote_cisco_ops.to_remove_breakpoint = remote_remove_breakpoint;
- remote_cisco_ops.to_kill = remote_kill;
- remote_cisco_ops.to_load = generic_load;
- remote_cisco_ops.to_mourn_inferior = remote_cisco_mourn;
- remote_cisco_ops.to_thread_alive = remote_thread_alive;
- remote_cisco_ops.to_find_new_threads = remote_threads_info;
- remote_cisco_ops.to_stratum = process_stratum;
- remote_cisco_ops.to_has_all_memory = 1;
- remote_cisco_ops.to_has_memory = 1;
- remote_cisco_ops.to_has_stack = 1;
- remote_cisco_ops.to_has_registers = 1;
- remote_cisco_ops.to_has_execution = 1;
- remote_cisco_ops.to_magic = OPS_MAGIC;
+ remote_cisco_ops.to_kill = remote_kill;
+ remote_cisco_ops.to_load = generic_load;
+ remote_cisco_ops.to_mourn_inferior = remote_cisco_mourn;
+ remote_cisco_ops.to_thread_alive = remote_thread_alive;
+ remote_cisco_ops.to_find_new_threads = remote_threads_info;
+ remote_cisco_ops.to_stratum = process_stratum;
+ remote_cisco_ops.to_has_all_memory = 1;
+ remote_cisco_ops.to_has_memory = 1;
+ remote_cisco_ops.to_has_stack = 1;
+ remote_cisco_ops.to_has_registers = 1;
+ remote_cisco_ops.to_has_execution = 1;
+ remote_cisco_ops.to_magic = OPS_MAGIC;
+}
+
+static int
+remote_can_async_p (void)
+{
+ /* We're async whenever the serial device is. */
+ return (current_target.to_async_mask_value) && SERIAL_CAN_ASYNC_P (remote_desc);
+}
+
+static int
+remote_is_async_p (void)
+{
+ /* We're async whenever the serial device is. */
+ return (current_target.to_async_mask_value) && SERIAL_IS_ASYNC_P (remote_desc);
+}
+
+/* Pass the SERIAL event on and up to the client. One day this code
+ will be able to delay notifying the client of an event until the
+ point where an entire packet has been received. */
+
+static void (*async_client_callback) (enum inferior_event_type event_type, void *context);
+static void *async_client_context;
+static serial_event_ftype remote_async_serial_handler;
+
+static void
+remote_async_serial_handler (serial_t scb, void *context)
+{
+ /* Don't propogate error information up to the client. Instead let
+ the client find out about the error by querying the target. */
+ async_client_callback (INF_REG_EVENT, async_client_context);
+}
+
+static void
+remote_async (void (*callback) (enum inferior_event_type event_type, void *context), void *context)
+{
+ if (current_target.to_async_mask_value == 0)
+ internal_error ("Calling remote_async when async is masked");
+
+ if (callback != NULL)
+ {
+ SERIAL_ASYNC (remote_desc, remote_async_serial_handler, NULL);
+ async_client_callback = callback;
+ async_client_context = context;
+ }
+ else
+ SERIAL_ASYNC (remote_desc, NULL, NULL);
+}
+
+/* Target async and target extended-async.
+
+ This are temporary targets, until it is all tested. Eventually
+ async support will be incorporated int the usual 'remote'
+ target. */
+
+static void
+init_remote_async_ops (void)
+{
+ remote_async_ops.to_shortname = "async";
+ remote_async_ops.to_longname = "Remote serial target in async version of the gdb-specific protocol";
+ remote_async_ops.to_doc =
+ "Use a remote computer via a serial line, using a gdb-specific protocol.\n\
+Specify the serial device it is connected to (e.g. /dev/ttya).";
+ remote_async_ops.to_open = remote_async_open;
+ remote_async_ops.to_close = remote_close;
+ remote_async_ops.to_detach = remote_async_detach;
+ remote_async_ops.to_resume = remote_async_resume;
+ remote_async_ops.to_wait = remote_async_wait;
+ remote_async_ops.to_fetch_registers = remote_fetch_registers;
+ remote_async_ops.to_store_registers = remote_store_registers;
+ remote_async_ops.to_prepare_to_store = remote_prepare_to_store;
+ remote_async_ops.to_xfer_memory = remote_xfer_memory;
+ remote_async_ops.to_files_info = remote_files_info;
+ remote_async_ops.to_insert_breakpoint = remote_insert_breakpoint;
+ remote_async_ops.to_remove_breakpoint = remote_remove_breakpoint;
+ remote_async_ops.to_terminal_inferior = remote_async_terminal_inferior;
+ remote_async_ops.to_terminal_ours = remote_async_terminal_ours;
+ remote_async_ops.to_kill = remote_async_kill;
+ remote_async_ops.to_load = generic_load;
+ remote_async_ops.to_mourn_inferior = remote_async_mourn;
+ remote_async_ops.to_thread_alive = remote_thread_alive;
+ remote_async_ops.to_find_new_threads = remote_threads_info;
+ remote_async_ops.to_stop = remote_stop;
+ remote_async_ops.to_query = remote_query;
+ remote_async_ops.to_rcmd = remote_rcmd;
+ remote_async_ops.to_stratum = process_stratum;
+ remote_async_ops.to_has_all_memory = 1;
+ remote_async_ops.to_has_memory = 1;
+ remote_async_ops.to_has_stack = 1;
+ remote_async_ops.to_has_registers = 1;
+ remote_async_ops.to_has_execution = 1;
+ remote_async_ops.to_has_thread_control = tc_schedlock; /* can lock scheduler */
+ remote_async_ops.to_can_async_p = remote_can_async_p;
+ remote_async_ops.to_is_async_p = remote_is_async_p;
+ remote_async_ops.to_async = remote_async;
+ remote_async_ops.to_async_mask_value = 1;
+ remote_async_ops.to_magic = OPS_MAGIC;
+}
+
+/* Set up the async extended remote vector by making a copy of the standard
+ remote vector and adding to it. */
+
+static void
+init_extended_async_remote_ops (void)
+{
+ extended_async_remote_ops = remote_async_ops;
+
+ extended_async_remote_ops.to_shortname = "extended-async";
+ extended_async_remote_ops.to_longname =
+ "Extended remote serial target in async gdb-specific protocol";
+ extended_async_remote_ops.to_doc =
+ "Use a remote computer via a serial line, using an async gdb-specific protocol.\n\
+Specify the serial device it is connected to (e.g. /dev/ttya).",
+ extended_async_remote_ops.to_open = extended_remote_async_open;
+ extended_async_remote_ops.to_create_inferior = extended_remote_async_create_inferior;
+ extended_async_remote_ops.to_mourn_inferior = extended_remote_mourn;
}
+static void
+set_remote_cmd (char *args, int from_tty)
+{
+
+}
+
+
static void
build_remote_gdbarch_data ()
{
+ build_remote_packet_sizes ();
+
+ /* Cisco stuff */
tty_input = xmalloc (PBUFSIZ);
+ remote_address_size = TARGET_PTR_BIT;
}
-
void
_initialize_remote ()
{
+ static struct cmd_list_element *remote_set_cmdlist;
+ static struct cmd_list_element *remote_show_cmdlist;
+ struct cmd_list_element *tmpcmd;
+
/* architecture specific data */
build_remote_gdbarch_data ();
register_gdbarch_swap (&tty_input, sizeof (&tty_input), NULL);
+ register_remote_packet_sizes ();
+ register_gdbarch_swap (&remote_address_size,
+ sizeof (&remote_address_size), NULL);
register_gdbarch_swap (NULL, 0, build_remote_gdbarch_data);
- /* runtime constants - we retain the value of remote_write_size
- across architecture swaps. */
- remote_write_size = PBUFSIZ;
-
init_remote_ops ();
add_target (&remote_ops);
init_extended_remote_ops ();
add_target (&extended_remote_ops);
+ init_remote_async_ops ();
+ add_target (&remote_async_ops);
+
+ init_extended_async_remote_ops ();
+ add_target (&extended_async_remote_ops);
+
init_remote_cisco_ops ();
add_target (&remote_cisco_ops);
init_remote_threadtests ();
#endif
- add_cmd ("compare-sections", class_obscure, compare_sections_command,
+ add_prefix_cmd ("remote", class_maintenance, set_remote_cmd, "\
+Remote protocol specific variables\n\
+Configure various remote-protocol specific variables such as\n\
+the packets being used",
+ &remote_set_cmdlist, "set remote ",
+ 0/*allow-unknown*/, &setlist);
+ add_prefix_cmd ("remote", class_maintenance, set_remote_cmd, "\
+Remote protocol specific variables\n\
+Configure various remote-protocol specific variables such as\n\
+the packets being used",
+ &remote_show_cmdlist, "show remote ",
+ 0/*allow-unknown*/, &showlist);
+
+ add_cmd ("compare-sections", class_obscure, compare_sections_command,
"Compare section data on target to the exec file.\n\
-Argument is a single section name (default: all loaded sections).",
+Argument is a single section name (default: all loaded sections).",
&cmdlist);
add_cmd ("packet", class_maintenance, packet_command,
terminating `#' character and checksum.",
&maintenancelist);
- add_show_from_set
- (add_set_cmd ("remotetimeout", no_class,
- var_integer, (char *)&remote_timeout,
- "Set timeout value for remote read.\n",
- &setlist),
- &showlist);
-
- add_show_from_set
+ add_show_from_set
(add_set_cmd ("remotebreak", no_class,
- var_integer, (char *)&remote_break,
+ var_boolean, (char *) &remote_break,
"Set whether to send break if interrupted.\n",
&setlist),
&showlist);
- add_show_from_set
- (add_set_cmd ("remotewritesize", no_class,
- var_integer, (char *)&remote_write_size,
- "Set the maximum number of bytes per memory write packet.\n",
- &setlist),
- &showlist);
-
- remote_address_size = TARGET_PTR_BIT;
- add_show_from_set
+ /* Install commands for configuring memory read/write packets. */
+
+ add_cmd ("remotewritesize", no_class, set_memory_write_packet_size,
+ "Set the maximum number of bytes per memory write packet (deprecated).\n",
+ &setlist);
+ add_cmd ("remotewritesize", no_class, set_memory_write_packet_size,
+ "Show the maximum number of bytes per memory write packet (deprecated).\n",
+ &showlist);
+ add_cmd ("memory-write-packet-size", no_class,
+ set_memory_write_packet_size,
+ "Set the maximum number of bytes per memory-write packet.\n"
+ "Specify the number of bytes in a packet or 0 (zero) for the\n"
+ "default packet size. The actual limit is further reduced\n"
+ "dependent on the target. Specify ``fixed'' to disable the\n"
+ "further restriction and ``limit'' to enable that restriction\n",
+ &remote_set_cmdlist);
+ add_cmd ("memory-read-packet-size", no_class,
+ set_memory_read_packet_size,
+ "Set the maximum number of bytes per memory-read packet.\n"
+ "Specify the number of bytes in a packet or 0 (zero) for the\n"
+ "default packet size. The actual limit is further reduced\n"
+ "dependent on the target. Specify ``fixed'' to disable the\n"
+ "further restriction and ``limit'' to enable that restriction\n",
+ &remote_set_cmdlist);
+ add_cmd ("memory-write-packet-size", no_class,
+ show_memory_write_packet_size,
+ "Show the maximum number of bytes per memory-write packet.\n",
+ &remote_show_cmdlist);
+ add_cmd ("memory-read-packet-size", no_class,
+ show_memory_read_packet_size,
+ "Show the maximum number of bytes per memory-read packet.\n",
+ &remote_show_cmdlist);
+
+ add_show_from_set
(add_set_cmd ("remoteaddresssize", class_obscure,
- var_integer, (char *)&remote_address_size,
+ var_integer, (char *) &remote_address_size,
"Set the maximum size of the address (in bits) \
in a memory packet.\n",
&setlist),
- &showlist);
+ &showlist);
- add_show_from_set
+ add_packet_config_cmd (&remote_protocol_binary_download,
+ "X", "binary-download",
+ set_remote_protocol_binary_download_cmd,
+ show_remote_protocol_binary_download_cmd,
+ &remote_set_cmdlist, &remote_show_cmdlist);
+#if 0
+ /* XXXX - should ``set remotebinarydownload'' be retained for
+ compatibility. */
+ add_show_from_set
(add_set_cmd ("remotebinarydownload", no_class,
var_boolean, (char *) &remote_binary_download,
"Set binary downloads.\n", &setlist),
&showlist);
+#endif
add_info ("remote-process", remote_info_process,
"Query the remote system for process info.");
+ add_packet_config_cmd (&remote_protocol_P, "P", "set-register",
+ set_remote_protocol_P_packet_cmd,
+ show_remote_protocol_P_packet_cmd,
+ &remote_set_cmdlist, &remote_show_cmdlist);
+
+ add_packet_config_cmd (&remote_protocol_Z, "Z", "breakpoint",
+ set_remote_protocol_Z_packet_cmd,
+ show_remote_protocol_Z_packet_cmd,
+ &remote_set_cmdlist, &remote_show_cmdlist);
}
projects / deliverable / binutils-gdb.git / blobdiff