/* Remote target communications for serial-line targets in custom GDB protocol
- Copyright 1988, 91, 92, 93, 94, 95, 96, 97, 98, 1999
- Free Software Foundation, Inc.
+ Copyright 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
+ 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
This file is part of GDB.
#include "gdb_string.h"
#include <ctype.h>
#include <fcntl.h>
-#include "frame.h"
#include "inferior.h"
#include "bfd.h"
#include "symfile.h"
#include "target.h"
-#include "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 "regcache.h"
#include <ctype.h>
#include <sys/time.h>
#include <signal.h>
#include "serial.h"
+#include "gdbcore.h" /* for exec_bfd */
+
/* 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));
-static void async_remote_interrupt_twice PARAMS ((gdb_client_data));
+static void handle_remote_sigint (int);
+static void handle_remote_sigint_twice (int);
+static void async_remote_interrupt (gdb_client_data);
+void async_remote_interrupt_twice (gdb_client_data);
-static void build_remote_gdbarch_data PARAMS ((void));
+static void build_remote_gdbarch_data (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 int remote_read_bytes (CORE_ADDR memaddr, char *myaddr, int len);
-static void remote_files_info PARAMS ((struct target_ops * ignore));
+static void remote_files_info (struct target_ops *ignore);
-static int remote_xfer_memory PARAMS ((CORE_ADDR memaddr, char *myaddr,
- int len, int should_write,
- struct target_ops * target));
+static int remote_xfer_memory (CORE_ADDR memaddr, char *myaddr,
+ int len, int should_write,
+ struct mem_attrib *attrib,
+ struct target_ops *target);
-static void remote_prepare_to_store PARAMS ((void));
+static void remote_prepare_to_store (void);
-static void remote_fetch_registers PARAMS ((int regno));
+static void remote_fetch_registers (int regno);
-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_resume (int pid, int step, enum target_signal siggnal);
+static void remote_async_resume (int pid, int step,
+ enum target_signal siggnal);
+static int remote_start_remote (PTR);
-static void remote_open PARAMS ((char *name, int from_tty));
-static void remote_async_open PARAMS ((char *name, int from_tty));
+static void remote_open (char *name, int from_tty);
+static void remote_async_open (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 extended_remote_open (char *name, int from_tty);
+static void extended_remote_async_open (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_open_1 (char *, int, struct target_ops *, int extended_p);
+static void remote_async_open_1 (char *, int, struct target_ops *,
+ int extended_p);
-static void remote_close PARAMS ((int quitting));
+static void remote_close (int quitting);
-static void remote_store_registers PARAMS ((int regno));
+static void remote_store_registers (int regno);
-static void remote_mourn PARAMS ((void));
-static void remote_async_mourn PARAMS ((void));
+static void remote_mourn (void);
+static void remote_async_mourn (void);
-static void extended_remote_restart PARAMS ((void));
+static void extended_remote_restart (void);
-static void extended_remote_mourn PARAMS ((void));
+static void extended_remote_mourn (void);
-static void extended_remote_create_inferior PARAMS ((char *, char *, char **));
-static void extended_remote_async_create_inferior PARAMS ((char *, char *, char **));
+static void extended_remote_create_inferior (char *, char *, char **);
+static void extended_remote_async_create_inferior (char *, char *, char **);
-static void remote_mourn_1 PARAMS ((struct target_ops *));
+static void remote_mourn_1 (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 readchar (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 int remote_wait (int pid, struct target_waitstatus *status);
+static int remote_async_wait (int pid, struct target_waitstatus *status);
-static void remote_kill PARAMS ((void));
-static void remote_async_kill PARAMS ((void));
+static void remote_kill (void);
+static void remote_async_kill (void);
-static int tohex PARAMS ((int nib));
+static int tohex (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_detach (char *args, int from_tty);
+static void remote_async_detach (char *args, int from_tty);
-static void remote_interrupt PARAMS ((int signo));
+static void remote_interrupt (int signo);
-static void remote_interrupt_twice PARAMS ((int signo));
+static void remote_interrupt_twice (int signo);
-static void interrupt_query PARAMS ((void));
+static void interrupt_query (void);
-static void set_thread PARAMS ((int, int));
+static void set_thread (int, int);
-static int remote_thread_alive PARAMS ((int));
+static int remote_thread_alive (int);
-static void get_offsets PARAMS ((void));
+static void get_offsets (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 remote_insert_breakpoint (CORE_ADDR, char *);
-static int remote_remove_breakpoint PARAMS ((CORE_ADDR, char *));
+static int remote_remove_breakpoint (CORE_ADDR, char *);
-static int hexnumlen PARAMS ((ULONGEST num));
+static int hexnumlen (ULONGEST num);
-static void init_remote_ops PARAMS ((void));
+static void init_remote_ops (void);
-static void init_extended_remote_ops PARAMS ((void));
+static void init_extended_remote_ops (void);
-static void init_remote_cisco_ops PARAMS ((void));
+static void init_remote_cisco_ops (void);
static struct target_ops remote_cisco_ops;
-static void remote_stop PARAMS ((void));
+static void remote_stop (void);
+
+static int ishex (int ch, int *val);
-static int ishex PARAMS ((int ch, int *val));
+static int stubhex (int ch);
-static int stubhex PARAMS ((int ch));
+static int remote_query (int /*char */ , char *, char *, int *);
-static int remote_query PARAMS ((int /*char */ , char *, char *, int *));
+static int hexnumstr (char *, ULONGEST);
-static int hexnumstr PARAMS ((char *, ULONGEST));
+static int hexnumnstr (char *, ULONGEST, int);
-static CORE_ADDR remote_address_masked PARAMS ((CORE_ADDR));
+static CORE_ADDR remote_address_masked (CORE_ADDR);
-static void print_packet PARAMS ((char *));
+static void print_packet (char *);
-static unsigned long crc32 PARAMS ((unsigned char *, int, unsigned int));
+static unsigned long crc32 (unsigned char *, int, unsigned int);
-static void compare_sections_command PARAMS ((char *, int));
+static void compare_sections_command (char *, int);
-static void packet_command PARAMS ((char *, int));
+static void packet_command (char *, int);
-static int stub_unpack_int PARAMS ((char *buff, int fieldlength));
+static int stub_unpack_int (char *buff, int fieldlength);
-static int remote_current_thread PARAMS ((int oldpid));
+static int remote_current_thread (int oldpid);
-static void remote_find_new_threads PARAMS ((void));
+static void remote_find_new_threads (void);
-static void record_currthread PARAMS ((int currthread));
+static void record_currthread (int currthread);
/* exported functions */
-extern int fromhex PARAMS ((int a));
+extern int fromhex (int a);
-static int putpkt_binary PARAMS ((char *buf, int cnt));
+static int putpkt_binary (char *buf, int cnt);
-static void check_binary_download PARAMS ((CORE_ADDR addr));
+static void check_binary_download (CORE_ADDR addr);
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 void show_packet_config_cmd (struct packet_config *config);
+static void update_packet_config (struct packet_config *config);
/* Define the target subroutine names */
-void open_remote_target PARAMS ((char *, int, struct target_ops *, int));
+void open_remote_target (char *, int, struct target_ops *, int);
-void _initialize_remote PARAMS ((void));
+void _initialize_remote (void);
/* */
static struct target_ops extended_async_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. */
-
-/* Changed to allow option to set timeout value.
- was static int remote_timeout = 2; */
-extern int remote_timeout;
-
/* 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
to denote that the target is in kernel mode. */
static int cisco_kernel_mode = 0;
-/* 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. */
-
-static int remote_register_buf_size = 0;
-
/* 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. */
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 cmd_auto_boolean 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[] =
+/* Analyze a packet's return value and update the packet config
+ accordingly. */
+
+enum packet_result
{
- packet_support_auto,
- packet_enable,
- packet_disable,
- 0,
+ PACKET_ERROR,
+ PACKET_OK,
+ PACKET_UNKNOWN
};
static void
-set_packet_config_cmd (config, c)
- struct packet_config *config;
- struct cmd_list_element *c;
+update_packet_config (struct packet_config *config)
{
- if (config->state == packet_enable)
+ switch (config->detect)
{
- config->detect = PACKET_MANUAL_DETECT;
+ case CMD_AUTO_BOOLEAN_TRUE:
config->support = PACKET_ENABLE;
- }
- else if (config->state == packet_disable)
- {
- config->detect = PACKET_MANUAL_DETECT;
+ break;
+ case CMD_AUTO_BOOLEAN_FALSE:
config->support = PACKET_DISABLE;
- }
- else if (config->state == packet_support_auto)
- {
- config->detect = PACKET_AUTO_DETECT;
+ break;
+ case CMD_AUTO_BOOLEAN_AUTO:
config->support = PACKET_SUPPORT_UNKNOWN;
+ break;
}
- else
- internal_error ("Bad enum value");
}
static void
-show_packet_config_cmd (config)
- struct packet_config *config;
+show_packet_config_cmd (struct packet_config *config)
{
char *support = "internal-error";
switch (config->support)
}
switch (config->detect)
{
- case PACKET_AUTO_DETECT:
+ case CMD_AUTO_BOOLEAN_AUTO:
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",
+ case CMD_AUTO_BOOLEAN_TRUE:
+ case CMD_AUTO_BOOLEAN_FALSE:
+ printf_filtered ("Support for remote protocol `%s' (%s) packet is currently %s.\n",
config->name, config->title, support);
+ break;
}
}
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;
+add_packet_config_cmd (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 **set_remote_list,
+ struct cmd_list_element **show_remote_list,
+ int legacy)
+{
+ struct cmd_list_element *set_cmd;
+ struct cmd_list_element *show_cmd;
char *set_doc;
char *show_doc;
- char *full_name;
+ char *cmd_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);
+ config->detect = CMD_AUTO_BOOLEAN_AUTO;
+ config->support = PACKET_SUPPORT_UNKNOWN;
+ xasprintf (&set_doc, "Set use of remote protocol `%s' (%s) packet",
+ name, title);
+ xasprintf (&show_doc, "Show current use of remote protocol `%s' (%s) packet",
+ name, title);
+ /* set/show TITLE-packet {auto,on,off} */
+ xasprintf (&cmd_name, "%s-packet", title);
+ set_cmd = add_set_auto_boolean_cmd (cmd_name, class_obscure,
+ &config->detect, set_doc,
+ set_remote_list);
+ set_cmd->function.sfunc = set_func;
+ show_cmd = add_cmd (cmd_name, class_obscure, show_func, show_doc,
+ show_remote_list);
+ /* set/show remote NAME-packet {auto,on,off} -- legacy */
+ if (legacy)
+ {
+ char *legacy_name;
+ xasprintf (&legacy_name, "%s-packet", name);
+ add_alias_cmd (legacy_name, cmd_name, class_obscure, 0,
+ set_remote_list);
+ add_alias_cmd (legacy_name, cmd_name, class_obscure, 0,
+ show_remote_list);
+ }
}
-static void
-init_packet_config (config)
- struct packet_config *config;
+static enum packet_result
+packet_ok (const char *buf, struct packet_config *config)
{
- switch (config->detect)
+ if (buf[0] != '\0')
{
- case PACKET_AUTO_DETECT:
- config->support = PACKET_SUPPORT_UNKNOWN;
- break;
- case PACKET_MANUAL_DETECT:
- /* let the user beware */
- break;
+ /* The stub recognized the packet request. Check that the
+ operation succeeded. */
+ switch (config->support)
+ {
+ case PACKET_SUPPORT_UNKNOWN:
+ if (remote_debug)
+ fprintf_unfiltered (gdb_stdlog,
+ "Packet %s (%s) is supported\n",
+ config->name, config->title);
+ config->support = PACKET_ENABLE;
+ break;
+ case PACKET_DISABLE:
+ internal_error (__FILE__, __LINE__,
+ "packet_ok: attempt to use a disabled packet");
+ break;
+ case PACKET_ENABLE:
+ break;
+ }
+ if (buf[0] == 'O' && buf[1] == 'K' && buf[2] == '\0')
+ /* "OK" - definitly OK. */
+ return PACKET_OK;
+ if (buf[0] == 'E'
+ && isxdigit (buf[1]) && isxdigit (buf[2])
+ && buf[3] == '\0')
+ /* "Enn" - definitly an error. */
+ return PACKET_ERROR;
+ /* The packet may or may not be OK. Just assume it is */
+ return PACKET_OK;
+ }
+ else
+ {
+ /* The stub does not support the packet. */
+ switch (config->support)
+ {
+ case PACKET_ENABLE:
+ if (config->detect == CMD_AUTO_BOOLEAN_AUTO)
+ /* If the stub previously indicated that the packet was
+ supported then there is a protocol error.. */
+ error ("Protocol error: %s (%s) conflicting enabled responses.",
+ config->name, config->title);
+ else
+ /* The user set it wrong. */
+ error ("Enabled packet %s (%s) not recognized by stub",
+ config->name, config->title);
+ break;
+ case PACKET_SUPPORT_UNKNOWN:
+ if (remote_debug)
+ fprintf_unfiltered (gdb_stdlog,
+ "Packet %s (%s) is NOT supported\n",
+ config->name, config->title);
+ config->support = PACKET_DISABLE;
+ break;
+ case PACKET_DISABLE:
+ break;
+ }
+ return PACKET_UNKNOWN;
}
}
+/* Should we try the 'e' (step over range) request? */
+static struct packet_config remote_protocol_e;
+
+static void
+set_remote_protocol_e_packet_cmd (char *args, int from_tty,
+ struct cmd_list_element *c)
+{
+ update_packet_config (&remote_protocol_e);
+}
+
+static void
+show_remote_protocol_e_packet_cmd (char *args, int from_tty)
+{
+ show_packet_config_cmd (&remote_protocol_e);
+}
+
+
+/* Should we try the 'E' (step over range / w signal #) request? */
+static struct packet_config remote_protocol_E;
+
+static void
+set_remote_protocol_E_packet_cmd (char *args, int from_tty,
+ struct cmd_list_element *c)
+{
+ update_packet_config (&remote_protocol_E);
+}
+
+static void
+show_remote_protocol_E_packet_cmd (char *args, int from_tty)
+{
+ show_packet_config_cmd (&remote_protocol_E);
+}
+
+
/* 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_remote_protocol_P_packet_cmd (char *args, int from_tty,
+ struct cmd_list_element *c)
{
- set_packet_config_cmd (&remote_protocol_P, c);
+ update_packet_config (&remote_protocol_P);
}
static void
-show_remote_protocol_P_packet_cmd (args, from_tty)
- char *args;
- int from_tty;
+show_remote_protocol_P_packet_cmd (char *args, int from_tty)
{
show_packet_config_cmd (&remote_protocol_P);
}
-/* Should we try the 'Z' (set breakpoint) request? */
+/* Should we try one of the 'Z' requests? */
-static struct packet_config remote_protocol_Z;
+enum Z_packet_type
+{
+ Z_PACKET_SOFTWARE_BP,
+ Z_PACKET_HARDWARE_BP,
+ Z_PACKET_WRITE_WP,
+ Z_PACKET_READ_WP,
+ Z_PACKET_ACCESS_WP,
+ NR_Z_PACKET_TYPES
+};
+
+static struct packet_config remote_protocol_Z[NR_Z_PACKET_TYPES];
+
+/* FIXME: Instead of having all these boiler plate functions, the
+ command callback should include a context argument. */
static void
-set_remote_protocol_Z_packet_cmd (args, from_tty, c)
- char *args;
- int from_tty;
- struct cmd_list_element *c;
+set_remote_protocol_Z_software_bp_packet_cmd (char *args, int from_tty,
+ struct cmd_list_element *c)
{
- set_packet_config_cmd (&remote_protocol_Z, c);
+ update_packet_config (&remote_protocol_Z[Z_PACKET_SOFTWARE_BP]);
}
static void
-show_remote_protocol_Z_packet_cmd (args, from_tty)
- char *args;
- int from_tty;
+show_remote_protocol_Z_software_bp_packet_cmd (char *args, int from_tty)
{
- show_packet_config_cmd (&remote_protocol_Z);
+ show_packet_config_cmd (&remote_protocol_Z[Z_PACKET_SOFTWARE_BP]);
+}
+
+static void
+set_remote_protocol_Z_hardware_bp_packet_cmd (char *args, int from_tty,
+ struct cmd_list_element *c)
+{
+ update_packet_config (&remote_protocol_Z[Z_PACKET_HARDWARE_BP]);
+}
+
+static void
+show_remote_protocol_Z_hardware_bp_packet_cmd (char *args, int from_tty)
+{
+ show_packet_config_cmd (&remote_protocol_Z[Z_PACKET_HARDWARE_BP]);
+}
+
+static void
+set_remote_protocol_Z_write_wp_packet_cmd (char *args, int from_tty,
+ struct cmd_list_element *c)
+{
+ update_packet_config (&remote_protocol_Z[Z_PACKET_WRITE_WP]);
+}
+
+static void
+show_remote_protocol_Z_write_wp_packet_cmd (char *args, int from_tty)
+{
+ show_packet_config_cmd (&remote_protocol_Z[Z_PACKET_WRITE_WP]);
+}
+
+static void
+set_remote_protocol_Z_read_wp_packet_cmd (char *args, int from_tty,
+ struct cmd_list_element *c)
+{
+ update_packet_config (&remote_protocol_Z[Z_PACKET_READ_WP]);
+}
+
+static void
+show_remote_protocol_Z_read_wp_packet_cmd (char *args, int from_tty)
+{
+ show_packet_config_cmd (&remote_protocol_Z[Z_PACKET_READ_WP]);
+}
+
+static void
+set_remote_protocol_Z_access_wp_packet_cmd (char *args, int from_tty,
+ struct cmd_list_element *c)
+{
+ update_packet_config (&remote_protocol_Z[Z_PACKET_ACCESS_WP]);
+}
+
+static void
+show_remote_protocol_Z_access_wp_packet_cmd (char *args, int from_tty)
+{
+ show_packet_config_cmd (&remote_protocol_Z[Z_PACKET_ACCESS_WP]);
+}
+
+/* For compatibility with older distributions. Provide a ``set remote
+ Z-packet ...'' command that updates all the Z packet types. */
+
+static enum cmd_auto_boolean remote_Z_packet_detect;
+
+static void
+set_remote_protocol_Z_packet_cmd (char *args, int from_tty,
+ struct cmd_list_element *c)
+{
+ int i;
+ for (i = 0; i < NR_Z_PACKET_TYPES; i++)
+ {
+ remote_protocol_Z[i].detect = remote_Z_packet_detect;
+ update_packet_config (&remote_protocol_Z[i]);
+ }
+}
+
+static void
+show_remote_protocol_Z_packet_cmd (char *args, int from_tty)
+{
+ int i;
+ for (i = 0; i < NR_Z_PACKET_TYPES; i++)
+ {
+ show_packet_config_cmd (&remote_protocol_Z[i]);
+ }
}
/* Should we try the 'X' (remote binary download) packet?
static struct packet_config remote_protocol_binary_download;
+/* Should we try the 'ThreadInfo' query packet?
+
+ This variable (NOT available to the user: auto-detect only!)
+ determines whether GDB will use the new, simpler "ThreadInfo"
+ query or the older, more complex syntax for thread queries.
+ This is an auto-detect variable (set to true at each connect,
+ and set to false when the target fails to recognize it). */
+
+static int use_threadinfo_query;
+static int use_threadextra_query;
+
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);
+ update_packet_config (&remote_protocol_binary_download);
}
static void
/* 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));
+void (*target_resume_hook) (void);
+void (*target_wait_loop_hook) (void);
\f
*/
static void
-record_currthread (currthread)
- int currthread;
+record_currthread (int currthread)
{
general_thread = currthread;
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
}
}
#define MAGIC_NULL_PID 42000
static void
-set_thread (th, gen)
- int th;
- int gen;
+set_thread (int th, int gen)
{
char *buf = alloca (PBUFSIZ);
int state = gen ? general_thread : continue_thread;
else
sprintf (&buf[2], "%x", th);
putpkt (buf);
- getpkt (buf, 0);
+ getpkt (buf, PBUFSIZ, 0);
if (gen)
general_thread = th;
else
/* Return nonzero if the thread TH is still alive on the remote system. */
static int
-remote_thread_alive (tid)
- int tid;
+remote_thread_alive (int tid)
{
char buf[16];
else
sprintf (buf, "T%08x", tid);
putpkt (buf);
- getpkt (buf, 0);
+ getpkt (buf, sizeof (buf), 0);
return (buf[0] == 'O' && buf[1] == 'K');
}
typedef int gdb_threadref; /* internal GDB thread reference */
-/* gdb_ext_thread_info is an internal GDB data structure which is
+/* 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
#define BUF_THREAD_ID_SIZE (OPAQUETHREADBYTES*2)
-char *unpack_varlen_hex PARAMS ((char *buff, int *result));
+char *unpack_varlen_hex (char *buff, int *result);
-static char *unpack_nibble PARAMS ((char *buf, int *val));
+static char *unpack_nibble (char *buf, int *val);
-static char *pack_nibble PARAMS ((char *buf, int nibble));
+static char *pack_nibble (char *buf, int nibble);
-static char *pack_hex_byte PARAMS ((char *pkt, int /*unsigned char */ byte));
+static char *pack_hex_byte (char *pkt, int /*unsigned char */ byte);
-static char *unpack_byte PARAMS ((char *buf, int *value));
+static char *unpack_byte (char *buf, int *value);
-static char *pack_int PARAMS ((char *buf, int value));
+static char *pack_int (char *buf, int value);
-static char *unpack_int PARAMS ((char *buf, int *value));
+static char *unpack_int (char *buf, int *value);
-static char *unpack_string PARAMS ((char *src, char *dest, int length));
+static char *unpack_string (char *src, char *dest, int length);
-static char *pack_threadid PARAMS ((char *pkt, threadref * id));
+static char *pack_threadid (char *pkt, threadref * id);
-static char *unpack_threadid PARAMS ((char *inbuf, threadref * id));
+static char *unpack_threadid (char *inbuf, threadref * id);
-void int_to_threadref PARAMS ((threadref * id, int value));
+void int_to_threadref (threadref * id, int value);
-static int threadref_to_int PARAMS ((threadref * ref));
+static int threadref_to_int (threadref * ref);
-static void copy_threadref PARAMS ((threadref * dest, threadref * src));
+static void copy_threadref (threadref * dest, threadref * src);
-static int threadmatch PARAMS ((threadref * dest, threadref * src));
+static int threadmatch (threadref * dest, threadref * src);
-static char *pack_threadinfo_request PARAMS ((char *pkt, int mode,
- threadref * id));
+static char *pack_threadinfo_request (char *pkt, int mode, threadref * id);
-static int remote_unpack_thread_info_response PARAMS ((char *pkt,
- threadref * expectedref,
- struct gdb_ext_thread_info * info));
+static int remote_unpack_thread_info_response (char *pkt,
+ 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 (threadref * threadid, int fieldset, /*TAG mask */
+ struct gdb_ext_thread_info *info);
-static int adapt_remote_get_threadinfo PARAMS ((gdb_threadref * ref,
- int selection,
- struct gdb_ext_thread_info * info));
+static int adapt_remote_get_threadinfo (gdb_threadref * ref,
+ int selection,
+ struct gdb_ext_thread_info *info);
-static char *pack_threadlist_request PARAMS ((char *pkt, int startflag,
- int threadcount,
- threadref * nextthread));
+static char *pack_threadlist_request (char *pkt, int startflag,
+ int threadcount,
+ threadref * nextthread);
-static int parse_threadlist_response PARAMS ((char *pkt,
- int result_limit,
- threadref * original_echo,
- threadref * resultlist,
- int *doneflag));
+static int parse_threadlist_response (char *pkt,
+ int result_limit,
+ threadref * original_echo,
+ threadref * resultlist, int *doneflag);
-static int remote_get_threadlist PARAMS ((int startflag,
- threadref * nextthread,
- int result_limit,
- int *done,
- int *result_count,
- threadref * threadlist));
+static int remote_get_threadlist (int startflag,
+ threadref * nextthread,
+ int result_limit,
+ int *done,
+ int *result_count, threadref * threadlist);
typedef int (*rmt_thread_action) (threadref * ref, void *context);
-static int remote_threadlist_iterator PARAMS ((rmt_thread_action stepfunction,
- void *context, int looplimit));
+static int remote_threadlist_iterator (rmt_thread_action stepfunction,
+ void *context, int looplimit);
-static int remote_newthread_step PARAMS ((threadref * ref, void *context));
+static int remote_newthread_step (threadref * ref, void *context);
/* encode 64 bits in 16 chars of hex */
static const char hexchars[] = "0123456789abcdef";
static int
-ishex (ch, val)
- int ch;
- int *val;
+ishex (int ch, int *val)
{
if ((ch >= 'a') && (ch <= 'f'))
{
}
static int
-stubhex (ch)
- int ch;
+stubhex (int ch)
{
if (ch >= 'a' && ch <= 'f')
return ch - 'a' + 10;
}
static int
-stub_unpack_int (buff, fieldlength)
- char *buff;
- int fieldlength;
+stub_unpack_int (char *buff, int fieldlength)
{
int nibble;
int retval = 0;
}
char *
-unpack_varlen_hex (buff, result)
- char *buff; /* packet to parse */
- int *result;
+unpack_varlen_hex (char *buff, /* packet to parse */
+ int *result)
{
int nibble;
int retval = 0;
}
static char *
-unpack_nibble (buf, val)
- char *buf;
- int *val;
+unpack_nibble (char *buf, int *val)
{
ishex (*buf++, val);
return buf;
}
static char *
-pack_nibble (buf, nibble)
- char *buf;
- int nibble;
+pack_nibble (char *buf, int nibble)
{
*buf++ = hexchars[(nibble & 0x0f)];
return buf;
}
static char *
-pack_hex_byte (pkt, byte)
- char *pkt;
- int byte;
+pack_hex_byte (char *pkt, int byte)
{
*pkt++ = hexchars[(byte >> 4) & 0xf];
*pkt++ = hexchars[(byte & 0xf)];
}
static char *
-unpack_byte (buf, value)
- char *buf;
- int *value;
+unpack_byte (char *buf, int *value)
{
*value = stub_unpack_int (buf, 2);
return buf + 2;
}
static char *
-pack_int (buf, value)
- char *buf;
- int value;
+pack_int (char *buf, int value)
{
buf = pack_hex_byte (buf, (value >> 24) & 0xff);
buf = pack_hex_byte (buf, (value >> 16) & 0xff);
}
static char *
-unpack_int (buf, value)
- char *buf;
- int *value;
+unpack_int (char *buf, int *value)
{
*value = stub_unpack_int (buf, 8);
return buf + 8;
}
#if 0 /* currently unused, uncomment when needed */
-static char *pack_string PARAMS ((char *pkt, char *string));
+static char *pack_string (char *pkt, char *string);
static char *
-pack_string (pkt, string)
- char *pkt;
- char *string;
+pack_string (char *pkt, char *string)
{
char ch;
int len;
#endif /* 0 (unused) */
static char *
-unpack_string (src, dest, length)
- char *src;
- char *dest;
- int length;
+unpack_string (char *src, char *dest, int length)
{
while (length--)
*dest++ = *src++;
}
static char *
-pack_threadid (pkt, id)
- char *pkt;
- threadref *id;
+pack_threadid (char *pkt, threadref *id)
{
char *limit;
unsigned char *altid;
static char *
-unpack_threadid (inbuf, id)
- char *inbuf;
- threadref *id;
+unpack_threadid (char *inbuf, threadref *id)
{
char *altref;
char *limit = inbuf + BUF_THREAD_ID_SIZE;
function. */
void
-int_to_threadref (id, value)
- threadref *id;
- int value;
+int_to_threadref (threadref *id, int value)
{
unsigned char *scan;
}
static int
-threadref_to_int (ref)
- threadref *ref;
+threadref_to_int (threadref *ref)
{
int i, value = 0;
unsigned char *scan;
}
static void
-copy_threadref (dest, src)
- threadref *dest;
- threadref *src;
+copy_threadref (threadref *dest, threadref *src)
{
int i;
unsigned char *csrc, *cdest;
}
static int
-threadmatch (dest, src)
- threadref *dest;
- threadref *src;
+threadmatch (threadref *dest, threadref *src)
{
/* things are broken right now, so just assume we got a match */
#if 0
/* Encoding: 'Q':8,'P':8,mask:32,threadid:64 */
static char *
-pack_threadinfo_request (pkt, mode, id)
- char *pkt;
- int mode;
- threadref *id;
+pack_threadinfo_request (char *pkt, int mode, threadref *id)
{
*pkt++ = 'q'; /* Info Query */
*pkt++ = 'P'; /* process or thread info */
the process */
static int
-remote_unpack_thread_info_response (pkt, expectedref, info)
- char *pkt;
- threadref *expectedref;
- struct gdb_ext_thread_info *info;
+remote_unpack_thread_info_response (char *pkt, threadref *expectedref,
+ struct gdb_ext_thread_info *info)
{
int mask, length;
unsigned int tag;
}
static int
-remote_get_threadinfo (threadid, fieldset, info)
- threadref *threadid;
- int fieldset; /* TAG mask */
- struct gdb_ext_thread_info *info;
+remote_get_threadinfo (threadref *threadid, int fieldset, /* TAG mask */
+ struct gdb_ext_thread_info *info)
{
int result;
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;
representation of a threadid. */
static int
-adapt_remote_get_threadinfo (ref, selection, info)
- gdb_threadref *ref;
- int selection;
- struct gdb_ext_thread_info *info;
+adapt_remote_get_threadinfo (gdb_threadref *ref, int selection,
+ struct gdb_ext_thread_info *info)
{
threadref lclref;
/* Format: i'Q':8,i"L":8,initflag:8,batchsize:16,lastthreadid:32 */
static char *
-pack_threadlist_request (pkt, startflag, threadcount, nextthread)
- char *pkt;
- int startflag;
- int threadcount;
- threadref *nextthread;
+pack_threadlist_request (char *pkt, int startflag, int threadcount,
+ threadref *nextthread)
{
*pkt++ = 'q'; /* info query packet */
*pkt++ = 'L'; /* Process LIST or threadLIST request */
/* Encoding: 'q':8,'M':8,count:16,done:8,argthreadid:64,(threadid:64)* */
static int
-parse_threadlist_response (pkt, result_limit, original_echo, resultlist,
- doneflag)
- char *pkt;
- int result_limit;
- threadref *original_echo;
- threadref *resultlist;
- int *doneflag;
+parse_threadlist_response (char *pkt, int result_limit,
+ threadref *original_echo, threadref *resultlist,
+ int *doneflag)
{
char *limit;
int count, resultcount, done;
}
static int
-remote_get_threadlist (startflag, nextthread, result_limit,
- done, result_count, threadlist)
- int startflag;
- threadref *nextthread;
- int result_limit;
- int *done;
- int *result_count;
- threadref *threadlist;
-
+remote_get_threadlist (int startflag, threadref *nextthread, int result_limit,
+ int *done, int *result_count, threadref *threadlist)
{
static threadref echo_nextthread;
char *threadlist_packet = alloca (PBUFSIZ);
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,
#define MAXTHREADLISTRESULTS 32
static int
-remote_threadlist_iterator (stepfunction, context, looplimit)
- rmt_thread_action stepfunction;
- void *context;
- int looplimit;
+remote_threadlist_iterator (rmt_thread_action stepfunction, void *context,
+ int looplimit)
{
int done, i, result_count;
int startflag = 1;
}
static int
-remote_newthread_step (ref, context)
- threadref *ref;
- void *context;
+remote_newthread_step (threadref *ref, void *context)
{
int pid;
#define CRAZY_MAX_THREADS 1000
static int
-remote_current_thread (oldpid)
- int oldpid;
+remote_current_thread (int oldpid)
{
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
return oldpid;
}
-/* Find new threads for info threads command. */
+/* Find new threads for info threads command.
+ * Original version, using John Metzler's thread protocol.
+ */
static void
-remote_find_new_threads ()
+remote_find_new_threads (void)
{
remote_threadlist_iterator (remote_newthread_step, 0,
CRAZY_MAX_THREADS);
inferior_pid = remote_current_thread (inferior_pid);
}
+/*
+ * Find all threads for info threads command.
+ * Uses new thread protocol contributed by Cisco.
+ * Falls back and attempts to use the older method (above)
+ * if the target doesn't respond to the new method.
+ */
+
static void
remote_threads_info (void)
{
if (remote_desc == 0) /* paranoia */
error ("Command can only be used when connected to the remote target.");
- putpkt ("qfThreadInfo");
- getpkt (bufp = buf, 0);
- if (bufp[0] == '\0') /* q packet not recognized! */
- { /* try old jmetzler method */
- remote_find_new_threads ();
- return;
+ if (use_threadinfo_query)
+ {
+ putpkt ("qfThreadInfo");
+ bufp = buf;
+ getpkt (bufp, PBUFSIZ, 0);
+ if (bufp[0] != '\0') /* q packet recognized */
+ {
+ 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 */
+ putpkt ("qsThreadInfo");
+ bufp = buf;
+ getpkt (bufp, PBUFSIZ, 0);
+ }
+ return; /* done */
+ }
}
- else /* try new 'q' method */
- while (*bufp++ == 'm') /* reply contains one or more TID */
+
+ /* Else fall back to old method based on jmetzler protocol. */
+ use_threadinfo_query = 0;
+ remote_find_new_threads ();
+ return;
+}
+
+/*
+ * Collect a descriptive string about the given thread.
+ * The target may say anything it wants to about the thread
+ * (typically info about its blocked / runnable state, name, etc.).
+ * This string will appear in the info threads display.
+ *
+ * Optional: targets are not required to implement this function.
+ */
+
+static char *
+remote_threads_extra_info (struct thread_info *tp)
+{
+ int result;
+ int set;
+ threadref id;
+ struct gdb_ext_thread_info threadinfo;
+ static char display_buf[100]; /* arbitrary... */
+ char *bufp = alloca (PBUFSIZ);
+ int n = 0; /* position in display_buf */
+
+ if (remote_desc == 0) /* paranoia */
+ internal_error (__FILE__, __LINE__,
+ "remote_threads_extra_info");
+
+ if (use_threadextra_query)
+ {
+ sprintf (bufp, "qThreadExtraInfo,%x", tp->pid);
+ putpkt (bufp);
+ getpkt (bufp, PBUFSIZ, 0);
+ if (bufp[0] != 0)
+ {
+ char *p;
+
+ for (p = display_buf;
+ p < display_buf + sizeof(display_buf) - 1 &&
+ bufp[0] != 0 &&
+ bufp[1] != 0;
+ p++, bufp+=2)
+ {
+ *p = fromhex (bufp[0]) * 16 + fromhex (bufp[1]);
+ }
+ *p = 0;
+ return display_buf;
+ }
+ }
+
+ /* If the above query fails, fall back to the old method. */
+ use_threadextra_query = 0;
+ set = TAG_THREADID | TAG_EXISTS | TAG_THREADNAME
+ | TAG_MOREDISPLAY | TAG_DISPLAY;
+ int_to_threadref (&id, tp->pid);
+ if (remote_get_threadinfo (&id, set, &threadinfo))
+ if (threadinfo.active)
{
- do
+ if (*threadinfo.shortname)
+ n += sprintf(&display_buf[0], " Name: %s,", threadinfo.shortname);
+ if (*threadinfo.display)
+ n += sprintf(&display_buf[n], " State: %s,", threadinfo.display);
+ if (*threadinfo.more_display)
+ n += sprintf(&display_buf[n], " Priority: %s",
+ threadinfo.more_display);
+
+ if (n > 0)
{
- tid = strtol (bufp, &bufp, 16);
- if (tid != 0 && !in_thread_list (tid))
- add_thread (tid);
+ /* for purely cosmetic reasons, clear up trailing commas */
+ if (',' == display_buf[n-1])
+ display_buf[n-1] = ' ';
+ return display_buf;
}
- while (*bufp++ == ','); /* comma-separated list */
- putpkt ("qsThreadInfo");
- getpkt (bufp = buf, 0);
}
+ return NULL;
}
+
\f
/* Restart the remote side; this is an extended protocol operation. */
static void
-extended_remote_restart ()
+extended_remote_restart (void)
{
char *buf = alloca (PBUFSIZ);
/* 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. */
/* ARGSUSED */
static void
-remote_close (quitting)
- int quitting;
+remote_close (int quitting)
{
if (remote_desc)
SERIAL_CLOSE (remote_desc);
/* Query the remote side for the text, data and bss offsets. */
static void
-get_offsets ()
+get_offsets (void)
{
char *buf = alloca (PBUFSIZ);
char *ptr;
putpkt ("qOffsets");
- getpkt (buf, 0);
+ getpkt (buf, PBUFSIZ, 0);
if (buf[0] == '\000')
return; /* Return silently. Stub doesn't support
offs = (struct section_offsets *) alloca (SIZEOF_SECTION_OFFSETS);
memcpy (offs, symfile_objfile->section_offsets, SIZEOF_SECTION_OFFSETS);
- ANOFFSET (offs, SECT_OFF_TEXT) = text_addr;
+ offs->offsets[SECT_OFF_TEXT (symfile_objfile)] = text_addr;
/* This is a temporary kludge to force data and bss to use the same offsets
because that's what nlmconv does now. The real solution requires changes
to the stub and remote.c that I don't have time to do right now. */
- ANOFFSET (offs, SECT_OFF_DATA) = data_addr;
- ANOFFSET (offs, SECT_OFF_BSS) = data_addr;
+ offs->offsets[SECT_OFF_DATA (symfile_objfile)] = data_addr;
+ offs->offsets[SECT_OFF_BSS (symfile_objfile)] = data_addr;
objfile_relocate (symfile_objfile, offs);
}
*/
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;
+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;
int len;
- char *p;
if (symfile_objfile == NULL)
return -1; /* no can do nothin' */
sect != 0;
sect = sect->next)
{
- p = (unsigned char *) bfd_get_section_name (abfd, sect);
+ const char *p = bfd_get_section_name (abfd, sect);
len = strlen (p);
if (strcmp (p + len - 4, "data") == 0) /* ends in "data" */
if (data_base == 0 ||
*/
void
-remote_cisco_objfile_relocate (text_off, data_off, bss_off)
- bfd_signed_vma text_off;
- bfd_signed_vma data_off;
- bfd_signed_vma bss_off;
+remote_cisco_objfile_relocate (bfd_signed_vma text_off, bfd_signed_vma data_off,
+ bfd_signed_vma bss_off)
{
struct section_offsets *offs;
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;
+ offs->offsets[SECT_OFF_TEXT (symfile_objfile)] = text_off;
+ offs->offsets[SECT_OFF_DATA (symfile_objfile)] = data_off;
+ offs->offsets[SECT_OFF_BSS (symfile_objfile)] = bss_off;
/* First call the standard objfile_relocate. */
objfile_relocate (symfile_objfile, offs);
/* 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;
}
static int
-remote_start_remote (dummy)
- PTR dummy;
+remote_start_remote (PTR dummy)
{
- immediate_quit = 1; /* Allow user to interrupt it */
+ immediate_quit++; /* Allow user to interrupt it */
/* Ack any packet which the remote side has already sent. */
SERIAL_WRITE (remote_desc, "+", 1);
get_offsets (); /* Get text, data & bss offsets */
putpkt ("?"); /* initiate a query from remote machine */
- immediate_quit = 0;
+ immediate_quit--;
return remote_start_remote_dummy (dummy);
}
NAME is the filename used for communication. */
static void
-remote_open (name, from_tty)
- char *name;
- int from_tty;
+remote_open (char *name, int from_tty)
{
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 (char *name, int from_tty)
{
remote_async_open_1 (name, from_tty, &remote_async_ops, 0);
}
remote gdb protocol. NAME is the filename used for communication. */
static void
-extended_remote_open (name, from_tty)
- char *name;
- int from_tty;
+extended_remote_open (char *name, int from_tty)
{
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;
+extended_remote_async_open (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. */
-static DCACHE *remote_dcache;
+static void
+init_all_packet_configs (void)
+{
+ int i;
+ update_packet_config (&remote_protocol_e);
+ update_packet_config (&remote_protocol_E);
+ update_packet_config (&remote_protocol_P);
+ for (i = 0; i < NR_Z_PACKET_TYPES; i++)
+ update_packet_config (&remote_protocol_Z[i]);
+ /* Force remote_write_bytes to check whether target supports binary
+ downloading. */
+ update_packet_config (&remote_protocol_binary_download);
+}
static void
-remote_open_1 (name, from_tty, target, extended_p)
- char *name;
- int from_tty;
- struct target_ops *target;
- int extended_p;
+remote_open_1 (char *name, int from_tty, struct target_ops *target,
+ int extended_p)
{
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;
unpush_target (target);
- remote_dcache = dcache_init (remote_read_bytes, remote_write_bytes);
-
remote_desc = SERIAL_OPEN (name);
if (!remote_desc)
perror_with_name (name);
}
push_target (target); /* Switch to using remote target now */
- init_packet_config (&remote_protocol_P);
- init_packet_config (&remote_protocol_Z);
+ init_all_packet_configs ();
general_thread = -2;
continue_thread = -2;
- /* Force remote_write_bytes to check whether target supports
- binary downloading. */
- init_packet_config (&remote_protocol_binary_download);
+ /* Probe for ability to use "ThreadInfo" query, as required. */
+ use_threadinfo_query = 1;
+ use_threadextra_query = 1;
/* Without this, some commands which require an active target (such
as kill) won't work. This variable serves (at least) double duty
if (extended_p)
{
- /* tell the remote that we're using the extended protocol. */
+ /* Tell the remote that we are using the extended protocol. */
char *buf = alloca (PBUFSIZ);
putpkt ("!");
- getpkt (buf, 0);
+ getpkt (buf, PBUFSIZ, 0);
}
+ /* FIXME: need a master target_open vector from which all
+ remote_opens can be called, so that stuff like this can
+ go there. Failing that, the following code must be copied
+ to the open function for any remote target that wants to
+ support svr4 shared libraries. */
+#ifdef SOLIB_CREATE_INFERIOR_HOOK
+ if (exec_bfd) /* No use without an exec file. */
+ SOLIB_CREATE_INFERIOR_HOOK (inferior_pid);
+#endif
}
/* Just like remote_open but with asynchronous support. */
static void
-remote_async_open_1 (name, from_tty, target, extended_p)
- char *name;
- int from_tty;
- struct target_ops *target;
- int extended_p;
+remote_async_open_1 (char *name, int from_tty, struct target_ops *target,
+ int extended_p)
{
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.).");
target_preopen (from_tty);
unpush_target (target);
- remote_dcache = dcache_init (remote_read_bytes, remote_write_bytes);
-
remote_desc = SERIAL_OPEN (name);
if (!remote_desc)
perror_with_name (name);
push_target (target); /* Switch to using remote target now */
- init_packet_config (&remote_protocol_P);
- init_packet_config (&remote_protocol_Z);
+ init_all_packet_configs ();
general_thread = -2;
continue_thread = -2;
- /* Force remote_write_bytes to check whether target supports
- binary downloading. */
- init_packet_config (&remote_protocol_binary_download);
+ /* Probe for ability to use "ThreadInfo" query, as required. */
+ use_threadinfo_query = 1;
+ use_threadextra_query = 1;
/* Without this, some commands which require an active target (such
as kill) won't work. This variable serves (at least) double duty
/* 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
+ requests. Unfortunately 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
if (extended_p)
{
- /* tell the remote that we're using the extended protocol. */
+ /* Tell the remote that we are using the extended protocol. */
char *buf = alloca (PBUFSIZ);
putpkt ("!");
- getpkt (buf, 0);
+ getpkt (buf, PBUFSIZ, 0);
}
+ /* FIXME: need a master target_open vector from which all
+ remote_opens can be called, so that stuff like this can
+ go there. Failing that, the following code must be copied
+ to the open function for any remote target that wants to
+ support svr4 shared libraries. */
+#ifdef SOLIB_CREATE_INFERIOR_HOOK
+ if (exec_bfd) /* No use without an exec file. */
+ SOLIB_CREATE_INFERIOR_HOOK (inferior_pid);
+#endif
}
/* This takes a program previously attached to and detaches it. After
die when it hits one. */
static void
-remote_detach (args, from_tty)
- char *args;
- int from_tty;
+remote_detach (char *args, int from_tty)
{
char *buf = alloca (PBUFSIZ);
/* Tell the remote target to detach. */
strcpy (buf, "D");
- remote_send (buf);
+ remote_send (buf, PBUFSIZ);
- pop_target ();
+ target_mourn_inferior ();
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;
+remote_async_detach (char *args, int from_tty)
{
char *buf = alloca (PBUFSIZ);
/* Tell the remote target to detach. */
strcpy (buf, "D");
- remote_send (buf);
+ remote_send (buf, PBUFSIZ);
/* Unregister the file descriptor from the event loop. */
- if (SERIAL_IS_ASYNC_P (remote_desc))
+ if (target_is_async_p ())
SERIAL_ASYNC (remote_desc, NULL, 0);
- pop_target ();
+ target_mourn_inferior ();
if (from_tty)
puts_filtered ("Ending remote debugging.\n");
}
/* Convert hex digit A to a number. */
int
-fromhex (a)
- int a;
+fromhex (int a)
{
if (a >= '0' && a <= '9')
return a - '0';
/* Convert number NIB to a hex digit. */
static int
-tohex (nib)
- int nib;
+tohex (int nib)
{
if (nib < 10)
return '0' + nib;
static int last_sent_step;
static void
-remote_resume (pid, step, siggnal)
- int pid, step;
- enum target_signal siggnal;
+remote_resume (int pid, int step, enum target_signal siggnal)
{
char *buf = alloca (PBUFSIZ);
+ char *p;
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;
if (target_resume_hook)
(*target_resume_hook) ();
+
+ /* The s/S/c/C packets do not return status. So if the target does
+ not support the S or C packets, the debug agent returns an empty
+ string which is detected in remote_wait(). This protocol defect
+ is fixed in the e/E packets. */
+
+ if (step && step_range_end)
+ {
+ /* If the target does not support the 'E' packet, we try the 'S'
+ packet. Ideally we would fall back to the 'e' packet if that
+ too is not supported. But that would require another copy of
+ the code to issue the 'e' packet (and fall back to 's' if not
+ supported) in remote_wait(). */
+
+ if (siggnal != TARGET_SIGNAL_0)
+ {
+ if (remote_protocol_E.support != PACKET_DISABLE)
+ {
+ p = buf;
+ *p++ = 'E';
+ *p++ = tohex (((int) siggnal >> 4) & 0xf);
+ *p++ = tohex (((int) siggnal) & 0xf);
+ *p++ = ',';
+ p += hexnumstr (p, (ULONGEST) step_range_start);
+ *p++ = ',';
+ p += hexnumstr (p, (ULONGEST) step_range_end);
+ *p++ = 0;
+
+ putpkt (buf);
+ getpkt (buf, PBUFSIZ, 0);
+
+ if (packet_ok(buf, &remote_protocol_E) == PACKET_OK)
+ return;
+ }
+ }
+ else
+ {
+ if (remote_protocol_e.support != PACKET_DISABLE)
+ {
+ p = buf;
+ *p++ = 'e';
+ p += hexnumstr (p, (ULONGEST) step_range_start);
+ *p++ = ',';
+ p += hexnumstr (p, (ULONGEST) step_range_end);
+ *p++ = 0;
+
+ putpkt (buf);
+ getpkt (buf, PBUFSIZ, 0);
+
+ if (packet_ok(buf, &remote_protocol_e) == PACKET_OK)
+ return;
+ }
+ }
+ }
+
if (siggnal != TARGET_SIGNAL_0)
{
buf[0] = step ? 'S' : 'C';
buf[1] = tohex (((int) siggnal >> 4) & 0xf);
- buf[2] = tohex ((int) siggnal & 0xf);
+ buf[2] = tohex (((int) siggnal) & 0xf);
buf[3] = '\0';
}
else
/* Same as remote_resume, but with async support. */
static void
-remote_async_resume (pid, step, siggnal)
- int pid, step;
- enum target_signal siggnal;
+remote_async_resume (int pid, int step, enum target_signal siggnal)
{
char *buf = alloca (PBUFSIZ);
+ char *p;
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;
if (target_resume_hook)
(*target_resume_hook) ();
+ /* The s/S/c/C packets do not return status. So if the target does
+ not support the S or C packets, the debug agent returns an empty
+ string which is detected in remote_wait(). This protocol defect
+ is fixed in the e/E packets. */
+
+ if (step && step_range_end)
+ {
+ /* If the target does not support the 'E' packet, we try the 'S'
+ packet. Ideally we would fall back to the 'e' packet if that
+ too is not supported. But that would require another copy of
+ the code to issue the 'e' packet (and fall back to 's' if not
+ supported) in remote_wait(). */
+
+ if (siggnal != TARGET_SIGNAL_0)
+ {
+ if (remote_protocol_E.support != PACKET_DISABLE)
+ {
+ p = buf;
+ *p++ = 'E';
+ *p++ = tohex (((int) siggnal >> 4) & 0xf);
+ *p++ = tohex (((int) siggnal) & 0xf);
+ *p++ = ',';
+ p += hexnumstr (p, (ULONGEST) step_range_start);
+ *p++ = ',';
+ p += hexnumstr (p, (ULONGEST) step_range_end);
+ *p++ = 0;
+
+ putpkt (buf);
+ getpkt (buf, PBUFSIZ, 0);
+
+ if (packet_ok(buf, &remote_protocol_E) == PACKET_OK)
+ goto register_event_loop;
+ }
+ }
+ else
+ {
+ if (remote_protocol_e.support != PACKET_DISABLE)
+ {
+ p = buf;
+ *p++ = 'e';
+ p += hexnumstr (p, (ULONGEST) step_range_start);
+ *p++ = ',';
+ p += hexnumstr (p, (ULONGEST) step_range_end);
+ *p++ = 0;
+
+ putpkt (buf);
+ getpkt (buf, PBUFSIZ, 0);
+
+ if (packet_ok(buf, &remote_protocol_e) == PACKET_OK)
+ goto register_event_loop;
+ }
+ }
+ }
+
if (siggnal != TARGET_SIGNAL_0)
{
buf[0] = step ? 'S' : 'C';
}
else
strcpy (buf, step ? "s" : "c");
+
+ putpkt (buf);
+register_event_loop:
/* 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
/* 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 && SERIAL_CAN_ASYNC_P (remote_desc))
+ 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 (SERIAL_IS_ASYNC_P (remote_desc))
+ 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 ()
+initialize_sigint_signal_handler (void)
{
sigint_remote_token =
create_async_signal_handler (async_remote_interrupt, NULL);
/* Signal handler for SIGINT, while the target is executing. */
static void
-handle_remote_sigint (sig)
- int sig;
+handle_remote_sigint (int sig)
{
signal (sig, handle_remote_sigint_twice);
sigint_remote_twice_token =
sent once. It will take effect the second time that the user sends
a ^C. */
static void
-handle_remote_sigint_twice (sig)
- int sig;
+handle_remote_sigint_twice (int sig)
{
signal (sig, handle_sigint);
sigint_remote_twice_token =
- create_async_signal_handler (async_remote_interrupt_twice, NULL);
+ 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;
+async_remote_interrupt (gdb_client_data arg)
{
if (remote_debug)
fprintf_unfiltered (gdb_stdlog, "remote_interrupt called\n");
/* Perform interrupt, if the first attempt did not succeed. Just give
up on the target alltogether. */
-static void
-async_remote_interrupt_twice (arg)
- gdb_client_data arg;
+void
+async_remote_interrupt_twice (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)
/* Send ^C to target to halt it. Target will respond, and send us a
packet. */
-static void (*ofunc) PARAMS ((int));
+static void (*ofunc) (int);
/* The command line interface's stop routine. This function is installed
as a signal handler for SIGINT. The first time a user requests a
response from the target (it didn't stop when the user requested it),
we ask the user if he'd like to detach from the target. */
static void
-remote_interrupt (signo)
- int signo;
+remote_interrupt (int signo)
{
/* If this doesn't work, try more severe steps. */
signal (signo, remote_interrupt_twice);
/* The user typed ^C twice. */
static void
-remote_interrupt_twice (signo)
- int signo;
+remote_interrupt_twice (int signo)
{
signal (signo, ofunc);
interrupt_query ();
interrupt is requested, either by the command line or the GUI, we
will eventually end up here. */
static void
-remote_stop ()
+remote_stop (void)
{
/* Send a break or a ^C, depending on user preference. */
if (remote_debug)
/* Ask the user what to do when an interrupt is received. */
static void
-interrupt_query ()
+interrupt_query (void)
{
target_terminal_ours ();
int kill_kludge;
void
-remote_console_output (msg)
- char *msg;
+remote_console_output (char *msg)
{
char *p;
tb[1] = 0;
fputs_unfiltered (tb, gdb_stdtarg);
}
+ gdb_flush (gdb_stdtarg);
}
/* Wait until the remote machine stops, then return,
remote OS, is the thread-id. */
static int
-remote_wait (pid, status)
- int pid;
- struct target_waitstatus *status;
+remote_wait (int pid, struct target_waitstatus *status)
{
unsigned char *buf = alloca (PBUFSIZ);
int thread_num = -1;
unsigned char *p;
ofunc = signal (SIGINT, remote_interrupt);
- getpkt ((char *) buf, 1);
+ getpkt (buf, PBUFSIZ, 1);
signal (SIGINT, ofunc);
/* This is a hook for when we need to do something (perhaps the
{
int i;
long regno;
- char regs[MAX_REGISTER_RAW_SIZE];
+ char* regs = (char*) alloca (MAX_REGISTER_RAW_SIZE);
/* Expedited reply, containing Signal, {regno, reg} repeat */
/* format is: 'Tssn...:r...;n...:r...;n...:r...;#cc', where
/* Async version of remote_wait. */
static int
-remote_async_wait (pid, status)
- int pid;
- struct target_waitstatus *status;
+remote_async_wait (int pid, struct target_waitstatus *status)
{
unsigned char *buf = alloca (PBUFSIZ);
int thread_num = -1;
{
unsigned char *p;
- if (!SERIAL_IS_ASYNC_P (remote_desc))
+ 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 ((char *) buf, wait_forever_enabled_p);
- if (!SERIAL_IS_ASYNC_P (remote_desc))
+ 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
{
int i;
long regno;
- char regs[MAX_REGISTER_RAW_SIZE];
+ char* regs = (char*) alloca (MAX_REGISTER_RAW_SIZE);
/* Expedited reply, containing Signal, {regno, reg} repeat */
/* format is: 'Tssn...:r...;n...:r...;n...:r...;#cc', where
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)
{
/* ARGSUSED */
static void
-remote_fetch_registers (regno)
- int regno;
+remote_fetch_registers (int regno)
{
char *buf = alloca (PBUFSIZ);
int i;
char *p;
- char regs[REGISTER_BYTES];
+ char *regs = alloca (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
if (i != register_bytes_found)
{
register_bytes_found = i;
-#ifdef REGISTER_BYTES_OK
- if (!REGISTER_BYTES_OK (i))
+ if (REGISTER_BYTES_OK_P ()
+ && !REGISTER_BYTES_OK (i))
warning ("Remote reply is too short: %s", buf);
-#endif
}
supply_them:
{
supply_register (i, ®s[REGISTER_BYTE (i)]);
if (buf[REGISTER_BYTE (i) * 2] == 'x')
- register_valid[i] = -1; /* register value not available */
+ set_register_cached (i, -1);
}
}
first. */
static void
-remote_prepare_to_store ()
+remote_prepare_to_store (void)
{
/* Make sure the entire registers array is valid. */
switch (remote_protocol_P.support)
packet was not recognized. */
static int
-store_register_using_P (regno)
- int regno;
+store_register_using_P (int regno)
{
/* Try storing a single register. */
char *buf = alloca (PBUFSIZ);
sprintf (buf, "P%x=", regno);
p = buf + strlen (buf);
- regp = ®isters[REGISTER_BYTE (regno)];
+ regp = register_buffer (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);
+ 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. */
+ of the register cache buffer. FIXME: ignores errors. */
static void
-remote_store_registers (regno)
- int regno;
+remote_store_registers (int regno)
{
char *buf = alloca (PBUFSIZ);
int i;
char *p;
+ char *regs;
set_thread (inferior_pid, 1);
/* Command describes registers byte by byte,
each byte encoded as two hex characters. */
+ regs = register_buffer (-1);
p = buf + 1;
/* remote_prepare_to_store insures that register_bytes_found gets set. */
for (i = 0; i < register_bytes_found; i++)
{
- *p++ = tohex ((registers[i] >> 4) & 0xf);
- *p++ = tohex (registers[i] & 0xf);
+ *p++ = tohex ((regs[i] >> 4) & 0xf);
+ *p++ = tohex (regs[i] & 0xf);
}
*p = '\0';
- remote_send (buf);
-}
-
-/* Use of the data cache *used* to be disabled because it loses for looking
- at and changing hardware I/O ports and the like. Accepting `volatile'
- would perhaps be one way to fix it. Another idea would be to use the
- executable file for the text segment (for all SEC_CODE sections?
- For all SEC_READONLY sections?). This has problems if you want to
- actually see what the memory contains (e.g. self-modifying code,
- clobbered memory, user downloaded the wrong thing).
-
- Because it speeds so much up, it's now enabled, if you're playing
- with registers you turn it of (set remotecache 0). */
-
-/* Read a word from remote address ADDR and return it.
- This goes through the data cache. */
-
-#if 0 /* unused? */
-static int
-remote_fetch_word (addr)
- CORE_ADDR addr;
-{
- return dcache_fetch (remote_dcache, addr);
-}
-
-/* Write a word WORD into remote address ADDR.
- This goes through the data cache. */
-
-static void
-remote_store_word (addr, word)
- CORE_ADDR addr;
- int word;
-{
- dcache_poke (remote_dcache, addr, word);
+ remote_send (buf, PBUFSIZ);
}
-#endif /* 0 (unused?) */
\f
-
/* Return the number of hex digits in num. */
static int
-hexnumlen (num)
- ULONGEST num;
+hexnumlen (ULONGEST num)
{
int i;
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;
+hexnumstr (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 (char *buf, ULONGEST num, int width)
+{
+ int i;
+
+ buf[width] = '\0';
+
+ for (i = width - 1; i >= 0; i--)
{
buf[i] = "0123456789abcdef"[(num & 0xf)];
num >>= 4;
}
- return len;
+ return width;
}
/* Mask all but the least significant REMOTE_ADDRESS_SIZE bits. */
static CORE_ADDR
-remote_address_masked (addr)
- CORE_ADDR addr;
+remote_address_masked (CORE_ADDR addr)
{
if (remote_address_size > 0
&& remote_address_size < (sizeof (ULONGEST) * 8))
X-packet". */
static void
-check_binary_download (addr)
- CORE_ADDR addr;
+check_binary_download (CORE_ADDR addr)
{
switch (remote_protocol_binary_download.support)
{
*p = '\0';
putpkt_binary (buf, (int) (p - buf));
- getpkt (buf, 0);
+ getpkt (buf, PBUFSIZ, 0);
if (buf[0] == '\0')
{
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 = alloca (PBUFSIZ);
+ 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 *p, *plen;
- int todo;
- int i;
+ /* construct "M"<memaddr>","<len>":" */
+ /* sprintf (buf, "M%lx,%x:", (unsigned long) memaddr, todo); */
+ p = buf;
- /* construct "M"<memaddr>","<len>":" */
- /* sprintf (buf, "M%lx,%x:", (unsigned long) memaddr, todo); */
- memaddr = remote_address_masked (memaddr);
- p = buf;
- switch (remote_protocol_binary_download.support)
+ /* 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 (__FILE__, __LINE__,
+ "remote_write_bytes: bad internal state");
+ default:
+ internal_error (__FILE__, __LINE__, "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++)
{
- case PACKET_ENABLE:
- *p++ = 'X';
- todo = min (len, max_buf_size);
- break;
- case PACKET_DISABLE:
- *p++ = 'M';
- todo = min (len, max_buf_size / 2); /* num bytes that will fit */
- break;
- case PACKET_SUPPORT_UNKNOWN:
- internal_error ("remote_write_bytes: bad switch");
+ switch (myaddr[nr_bytes] & 0xff)
+ {
+ 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 += hexnumstr (p, (ULONGEST) memaddr);
- *p++ = ',';
-
- plen = p; /* remember where len field goes */
- p += hexnumstr (p, (ULONGEST) todo);
- *p++ = ':';
- *p = '\0';
-
- /* We send target system values byte by byte, in increasing byte
- addresses, each byte encoded as two hex characters (or one
- binary character). */
- switch (remote_protocol_binary_download.support)
+ if (nr_bytes < todo)
{
- case PACKET_ENABLE:
- {
- 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++ = ':';
- }
- break;
- }
- case PACKET_DISABLE:
- {
- for (i = 0; i < todo; i++)
- {
- *p++ = tohex ((myaddr[i] >> 4) & 0xf);
- *p++ = tohex (myaddr[i] & 0xf);
- }
- *p = '\0';
- break;
- }
- case PACKET_SUPPORT_UNKNOWN:
- internal_error ("remote_write_bytes: bad switch");
+ /* 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() */
}
-
- putpkt_binary (buf, (int) (p - buf));
- getpkt (buf, 0);
-
- if (buf[0] == 'E')
+ 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++)
{
- /* 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;
+ *p++ = tohex ((myaddr[nr_bytes] >> 4) & 0xf);
+ *p++ = tohex (myaddr[nr_bytes] & 0xf);
}
-
- /* 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;
+ *p = '\0';
+ break;
+ case PACKET_SUPPORT_UNKNOWN:
+ internal_error (__FILE__, __LINE__,
+ "remote_write_bytes: bad internal state");
+ default:
+ internal_error (__FILE__, __LINE__, "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;
+remote_read_bytes (CORE_ADDR memaddr, char *myaddr, int len)
{
- char *buf = alloca (PBUFSIZ);
+ 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)
*p = '\0';
putpkt (buf);
- getpkt (buf, 0);
+ getpkt (buf, sizeof_buf, 0);
if (buf[0] == 'E')
{
/* Read or write LEN bytes from inferior memory at MEMADDR,
transferring to or from debugger address BUFFER. Write to inferior if
SHOULD_WRITE is nonzero. Returns length of data written or read; 0
- for error. */
-
-#ifndef REMOTE_TRANSLATE_XFER_ADDRESS
-#define REMOTE_TRANSLATE_XFER_ADDRESS(MEM_ADDR, MEM_LEN, TARG_ADDR, TARG_LEN) \
- (*(TARG_ADDR) = (MEM_ADDR), *(TARG_LEN) = (MEM_LEN))
-#endif
+ for error. TARGET is unused. */
/* ARGSUSED */
static int
-remote_xfer_memory (mem_addr, buffer, mem_len, should_write, target)
- CORE_ADDR mem_addr;
- char *buffer;
- int mem_len;
- int should_write;
- struct target_ops *target; /* ignored */
+remote_xfer_memory (CORE_ADDR mem_addr, char *buffer, int mem_len,
+ int should_write,
+ struct mem_attrib *attrib ATTRIBUTE_UNUSED,
+ struct target_ops *target)
{
CORE_ADDR targ_addr;
int targ_len;
+ int res;
+
REMOTE_TRANSLATE_XFER_ADDRESS (mem_addr, mem_len, &targ_addr, &targ_len);
if (targ_len <= 0)
return 0;
- return dcache_xfer_memory (remote_dcache, targ_addr, buffer,
- targ_len, should_write);
+ if (should_write)
+ res = remote_write_bytes (targ_addr, buffer, targ_len);
+ else
+ res = remote_read_bytes (targ_addr, buffer, targ_len);
+
+ return res;
}
/* Enable after 4.12. */
void
-remote_search (len, data, mask, startaddr, increment, lorange, hirange
- addr_found, data_found)
- int len;
- char *data;
- char *mask;
- CORE_ADDR startaddr;
- int increment;
- CORE_ADDR lorange;
- CORE_ADDR hirange;
- CORE_ADDR *addr_found;
- char *data_found;
+remote_search (int len, char *data, char *mask, CORE_ADDR startaddr,
+ int increment, CORE_ADDR lorange, CORE_ADDR hirange,
+ CORE_ADDR *addr_found, char *data_found)
{
if (increment == -4 && len == 4)
{
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
#endif /* 0 */
\f
static void
-remote_files_info (ignore)
- struct target_ops *ignore;
+remote_files_info (struct target_ops *ignore)
{
puts_filtered ("Debugging a target over a serial line.\n");
}
/* Read a single character from the remote end, masking it down to 7 bits. */
static int
-readchar (timeout)
- int timeout;
+readchar (int timeout)
{
int ch;
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);
string notation. */
static void
-print_packet (buf)
- char *buf;
+print_packet (char *buf)
{
puts_filtered ("\"");
fputstr_filtered (buf, '"', gdb_stdout);
}
int
-putpkt (buf)
- char *buf;
+putpkt (char *buf)
{
return putpkt_binary (buf, strlen (buf));
}
debugging (remote_debug) and want to print the sent packet as a string */
static int
-putpkt_binary (buf, cnt)
- char *buf;
- int cnt;
+putpkt_binary (char *buf, int cnt)
{
int i;
unsigned char csum = 0;
- char *buf2 = alloca (PBUFSIZ);
- char *junkbuf = alloca (PBUFSIZ);
+ char *buf2 = alloca (cnt + 6);
+ long sizeof_junkbuf = PBUFSIZ;
+ char *junkbuf = alloca (sizeof_junkbuf);
int ch;
int tcount = 0;
/* Copy the packet into buffer BUF2, encapsulating it
and giving it a checksum. */
- if (cnt > BUFSIZ - 5) /* Prosanity check */
- abort ();
-
p = buf2;
*p++ = '$';
switch (ch)
{
case '+':
+ case '-':
case SERIAL_TIMEOUT:
case '$':
if (started_error_output)
if (remote_debug)
fprintf_unfiltered (gdb_stdlog, "Ack\n");
return 1;
+ case '-':
+ if (remote_debug)
+ fprintf_unfiltered (gdb_stdlog, "Nak\n");
case SERIAL_TIMEOUT:
tcount++;
if (tcount > 3)
break; /* Retransmit buffer */
case '$':
{
+ if (remote_debug)
+ fprintf_unfiltered (gdb_stdlog, "Packet instead of Ack, ignoring it\n");
/* It's probably an old response, and we're out of sync.
Just gobble up the packet and ignore it. */
- getpkt (junkbuf, 0);
+ read_frame (junkbuf, sizeof_junkbuf);
continue; /* Now, go look for + */
}
default:
/* 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;
+ int check_0 = 0;
+ int check_1 = 0;
- *bp = '\000';
+ buf[bc] = '\0';
- pktcsum = fromhex (readchar (remote_timeout)) << 4;
- pktcsum |= fromhex (readchar (remote_timeout));
+ check_0 = readchar (remote_timeout);
+ if (check_0 >= 0)
+ check_1 = readchar (remote_timeout);
+
+ if (check_0 == SERIAL_TIMEOUT || check_1 == SERIAL_TIMEOUT)
+ {
+ if (remote_debug)
+ fputs_filtered ("Timeout in checksum, retrying\n", gdb_stdlog);
+ return -1;
+ }
+ else if (check_0 < 0 || check_1 < 0)
+ {
+ if (remote_debug)
+ fputs_filtered ("Communication error in checksum\n", gdb_stdlog);
+ return -1;
+ }
+ pktcsum = (fromhex (check_0) << 4) | fromhex (check_1);
if (csum == pktcsum)
- return 1;
+ return bc;
if (remote_debug)
{
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 */
{
repeat += fromhex (c);
}
+ /* The character before ``*'' is repeated. */
+
if (repeat > 0 && repeat <= 255
- && bp + repeat - 1 < buf + PBUFSIZ - 1)
+ && bc > 0
+ && bc + repeat < sizeof_buf - 1)
{
- memset (bp, *(bp - 1), repeat);
- bp += c;
+ memset (&buf[bc], buf[bc - 1], repeat);
+ bc += repeat;
continue;
}
- *bp = '\0';
+ buf[bc] = '\0';
printf_filtered ("Repeat count %d too large for buffer: ", repeat);
puts_filtered (buf);
puts_filtered ("\n");
- return 0;
+ 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. 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. */
-
+ 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 (buf, forever)
- char *buf;
- int forever;
+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. 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. */
+static int
+getpkt_sane (char *buf,
+ long sizeof_buf,
+ int forever)
{
int c;
int tries;
/* 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, "\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
-remote_kill ()
+remote_kill (void)
{
/* For some mysterious reason, wait_for_inferior calls kill instead of
mourn after it gets TARGET_WAITKIND_SIGNALLED. Work around it. */
/* Async version of remote_kill. */
static void
-remote_async_kill ()
+remote_async_kill (void)
{
/* Unregister the file descriptor from the event loop. */
- if (SERIAL_IS_ASYNC_P (remote_desc))
+ if (target_is_async_p ())
SERIAL_ASYNC (remote_desc, NULL, 0);
/* For some mysterious reason, wait_for_inferior calls kill instead of
}
static void
-remote_mourn ()
+remote_mourn (void)
{
remote_mourn_1 (&remote_ops);
}
static void
-remote_async_mourn ()
+remote_async_mourn (void)
{
remote_mourn_1 (&remote_async_ops);
}
static void
-extended_remote_mourn ()
+extended_remote_mourn (void)
{
/* We do _not_ want to mourn the target like this; this will
remove the extended remote target from the target stack,
/* Worker function for remote_mourn. */
static void
-remote_mourn_1 (target)
- struct target_ops *target;
+remote_mourn_1 (struct target_ops *target)
{
unpush_target (target);
generic_mourn_inferior ();
we're debugging, arguments and an environment. */
static void
-extended_remote_create_inferior (exec_file, args, env)
- char *exec_file;
- char *args;
- char **env;
+extended_remote_create_inferior (char *exec_file, char *args, char **env)
{
/* Rip out the breakpoints; we'll reinsert them after restarting
the remote server. */
/* 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;
+extended_remote_async_create_inferior (char *exec_file, char *args, char **env)
{
/* Rip out the breakpoints; we'll reinsert them after restarting
the remote server. */
is accomplished via BREAKPOINT_MAX). */
static int
-remote_insert_breakpoint (addr, contents_cache)
- CORE_ADDR addr;
- char *contents_cache;
+remote_insert_breakpoint (CORE_ADDR addr, char *contents_cache)
{
#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. */
+ /* Try the "Z" s/w breakpoint 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))
+ if (remote_protocol_Z[Z_PACKET_SOFTWARE_BP].support != PACKET_DISABLE)
{
- char buf[PBUFSIZ], *p = buf;
+ char *buf = alloca (PBUFSIZ);
+ char *p = buf;
addr = remote_address_masked (addr);
*(p++) = 'Z';
sprintf (p, ",%d", bp_size);
putpkt (buf);
- getpkt (buf, 0);
+ 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
+ switch (packet_ok (buf, &remote_protocol_Z[Z_PACKET_SOFTWARE_BP]))
{
- remote_protocol_Z.support = PACKET_DISABLE;
+ case PACKET_ERROR:
+ return -1;
+ case PACKET_OK:
+ return 0;
+ case PACKET_UNKNOWN:
+ break;
}
}
}
static int
-remote_remove_breakpoint (addr, contents_cache)
- CORE_ADDR addr;
- char *contents_cache;
+remote_remove_breakpoint (CORE_ADDR addr, char *contents_cache)
{
int bp_size;
- if ((remote_protocol_Z.support == PACKET_ENABLE)
- || (remote_protocol_Z.support == PACKET_SUPPORT_UNKNOWN))
+ if (remote_protocol_Z[Z_PACKET_SOFTWARE_BP].support != PACKET_DISABLE)
{
- char buf[PBUFSIZ], *p = buf;
+ char *buf = alloca (PBUFSIZ);
+ char *p = buf;
*(p++) = 'z';
*(p++) = '0';
sprintf (p, ",%d", bp_size);
putpkt (buf);
- getpkt (buf, 0);
+ getpkt (buf, PBUFSIZ, 0);
return (buf[0] == 'E');
}
#endif /* REMOTE_BREAKPOINT */
}
-#ifdef TARGET_HAS_HARDWARE_WATCHPOINTS
+static int
+watchpoint_to_Z_packet (int type)
+{
+ switch (type)
+ {
+ case hw_write:
+ return 2;
+ break;
+ case hw_read:
+ return 3;
+ break;
+ case hw_access:
+ return 4;
+ break;
+ default:
+ internal_error (__FILE__, __LINE__,
+ "hw_bp_to_z: bad watchpoint type %d", type);
+ }
+}
+
+/* FIXME: This function should be static and a member of the remote
+ target vector. */
+
int
-remote_insert_watchpoint (addr, len, type)
- CORE_ADDR addr;
- int len;
- int type;
+remote_insert_watchpoint (CORE_ADDR addr, int len, int type)
{
- char buf[PBUFSIZ], *p;
+ char *buf = alloca (PBUFSIZ);
+ char *p;
+ enum Z_packet_type packet = watchpoint_to_Z_packet (type);
- if (remote_protocol_Z.support == PACKET_DISABLE)
- error ("Can't set hardware watchpoints without the 'Z' packet\n");
+ if (remote_protocol_Z[packet].support == PACKET_DISABLE)
+ error ("Can't set hardware watchpoints without the '%s' (%s) packet\n",
+ remote_protocol_Z[packet].name,
+ remote_protocol_Z[packet].title);
- sprintf (buf, "Z%x,", type + 2 );
+ sprintf (buf, "Z%x,", packet);
p = strchr (buf, '\0');
addr = remote_address_masked (addr);
p += hexnumstr (p, (ULONGEST) addr);
sprintf (p, ",%x", len);
putpkt (buf);
- getpkt (buf, 0);
-
- if (buf[0] == '\0' || buf [0] == 'E')
- return -1;
+ getpkt (buf, PBUFSIZ, 0);
- return 0;
+ switch (packet_ok (buf, &remote_protocol_Z[packet]))
+ {
+ case PACKET_ERROR:
+ case PACKET_UNKNOWN:
+ return -1;
+ case PACKET_OK:
+ return 0;
+ }
+ internal_error (__FILE__, __LINE__,
+ "remote_insert_watchpoint: reached end of function");
}
+/* FIXME: This function should be static and a member of the remote
+ target vector. */
+
int
-remote_remove_watchpoint (addr, len, type)
- CORE_ADDR addr;
- int len;
- int type;
+remote_remove_watchpoint (CORE_ADDR addr, int len, int type)
{
- char buf[PBUFSIZ], *p;
+ char *buf = alloca (PBUFSIZ);
+ char *p;
+ enum Z_packet_type packet = watchpoint_to_Z_packet (type);
+
+ if (remote_protocol_Z[packet].support == PACKET_DISABLE)
+ error ("Can't clear hardware watchpoints without the '%s' (%s) packet\n",
+ remote_protocol_Z[packet].name,
+ remote_protocol_Z[packet].title);
- sprintf (buf, "z%x,", type + 2 );
+ sprintf (buf, "z%x,", packet);
p = strchr (buf, '\0');
addr = remote_address_masked (addr);
p += hexnumstr (p, (ULONGEST) addr);
sprintf (p, ",%x", len);
putpkt (buf);
- getpkt (buf, 0);
-
- if (buf[0] == '\0' || buf [0] == 'E')
- return -1;
+ getpkt (buf, PBUFSIZ, 0);
- return 0;
+ switch (packet_ok (buf, &remote_protocol_Z[packet]))
+ {
+ case PACKET_ERROR:
+ case PACKET_UNKNOWN:
+ return -1;
+ case PACKET_OK:
+ return 0;
+ }
+ internal_error (__FILE__, __LINE__,
+ "remote_remove_watchpoint: reached end of function");
}
+/* FIXME: This function should be static and a member of the remote
+ target vector. */
+
int
-remote_insert_hw_breakpoint (addr, len)
- CORE_ADDR addr;
- int len;
+remote_insert_hw_breakpoint (CORE_ADDR addr, int len)
{
- char buf[PBUFSIZ], *p = buf;
+ 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");
-
+ if (remote_protocol_Z[Z_PACKET_HARDWARE_BP].support == PACKET_DISABLE)
+ error ("Can't set hardware breakpoint without the '%s' (%s) packet\n",
+ remote_protocol_Z[Z_PACKET_HARDWARE_BP].name,
+ remote_protocol_Z[Z_PACKET_HARDWARE_BP].title);
+
*(p++) = 'Z';
*(p++) = '1';
*(p++) = ',';
addr = remote_address_masked (addr);
p += hexnumstr (p, (ULONGEST) addr);
- *p = '\0';
+ sprintf (p, ",%x", len);
putpkt (buf);
- getpkt (buf, 0);
+ getpkt (buf, PBUFSIZ, 0);
- if (buf[0] == '\0' || buf [0] == 'E')
- return -1;
-
- return 0;
+ switch (packet_ok (buf, &remote_protocol_Z[Z_PACKET_HARDWARE_BP]))
+ {
+ case PACKET_ERROR:
+ case PACKET_UNKNOWN:
+ return -1;
+ case PACKET_OK:
+ return 0;
+ }
+ internal_error (__FILE__, __LINE__,
+ "remote_remove_watchpoint: reached end of function");
}
+/* FIXME: This function should be static and a member of the remote
+ target vector. */
+
int
-remote_remove_hw_breakpoint (addr, len)
- CORE_ADDR addr;
- int len;
+remote_remove_hw_breakpoint (CORE_ADDR addr, int len)
{
- char buf[PBUFSIZ], *p = buf;
+ char *buf = alloca (PBUFSIZ);
+ char *p = buf;
+
+ if (remote_protocol_Z[Z_PACKET_HARDWARE_BP].support == PACKET_DISABLE)
+ error ("Can't clear hardware breakpoint without the '%s' (%s) packet\n",
+ remote_protocol_Z[Z_PACKET_HARDWARE_BP].name,
+ remote_protocol_Z[Z_PACKET_HARDWARE_BP].title);
*(p++) = 'z';
*(p++) = '1';
addr = remote_address_masked (addr);
p += hexnumstr (p, (ULONGEST) addr);
- *p = '\0';
+ sprintf (p, ",%x", len);
putpkt(buf);
- getpkt (buf, 0);
+ getpkt (buf, PBUFSIZ, 0);
- if (buf[0] == '\0' || buf [0] == 'E')
- return -1;
-
- return 0;
+ switch (packet_ok (buf, &remote_protocol_Z[Z_PACKET_HARDWARE_BP]))
+ {
+ case PACKET_ERROR:
+ case PACKET_UNKNOWN:
+ return -1;
+ case PACKET_OK:
+ return 0;
+ }
+ internal_error (__FILE__, __LINE__,
+ "remote_remove_watchpoint: reached end of function");
}
-#endif
/* Some targets are only capable of doing downloads, and afterwards
they switch to the remote serial protocol. This function provides
already..." message. Usually a call to pop_target() suffices. */
void
-push_remote_target (name, from_tty)
- char *name;
- int from_tty;
+push_remote_target (char *name, int from_tty)
{
printf_filtered ("Switching to remote protocol\n");
remote_open (name, from_tty);
certain remote_ops overridden. */
void
-open_remote_target (name, from_tty, target, extended_p)
- char *name;
- int from_tty;
- struct target_ops *target;
- int extended_p;
+open_remote_target (char *name, int from_tty, struct target_ops *target,
+ int extended_p)
{
printf_filtered ("Selecting the %sremote protocol\n",
(extended_p ? "extended-" : ""));
{0, 0};
static unsigned long
-crc32 (buf, len, crc)
- unsigned char *buf;
- int len;
- unsigned int crc;
+crc32 (unsigned char *buf, int len, unsigned int crc)
{
if (!crc32_table[1])
{
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;
- int from_tty;
+compare_sections_command (char *args, int from_tty)
{
asection *s;
unsigned long host_crc, target_crc;
struct cleanup *old_chain;
char *tmp;
char *sectdata;
- char *sectname;
+ const char *sectname;
char *buf = alloca (PBUFSIZ);
bfd_size_type size;
bfd_vma lma;
if (size == 0)
continue; /* skip zero-length section */
- sectname = (char *) bfd_get_section_name (exec_bfd, s);
+ sectname = bfd_get_section_name (exec_bfd, s);
if (args && strcmp (args, sectname) != 0)
continue; /* not the section selected by user */
/* be clever; compute the host_crc before waiting for target reply */
sectdata = xmalloc (size);
- old_chain = make_cleanup (free, sectdata);
+ old_chain = make_cleanup (xfree, sectdata);
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);
}
static int
-remote_query (query_type, buf, outbuf, bufsiz)
- int query_type;
- char *buf;
- char *outbuf;
- int *bufsiz;
+remote_query (int query_type, char *buf, char *outbuf, int *bufsiz)
{
int i;
char *buf2 = alloca (PBUFSIZ);
if (i < 0)
return i;
- getpkt (outbuf, 0);
+ getpkt (outbuf, *bufsiz, 0);
return 0;
}
static void
remote_rcmd (char *command,
- struct gdb_file *outbuf)
+ struct ui_file *outbuf)
{
int i;
char *buf = alloca (PBUFSIZ);
{
/* XXX - see also tracepoint.c:remote_get_noisy_reply() */
buf[0] = '\0';
- getpkt (buf, 0);
+ getpkt (buf, PBUFSIZ, 0);
if (buf[0] == '\0')
error ("Target does not support this command\n");
if (buf[0] == 'O' && buf[1] != 'K')
}
static void
-packet_command (args, from_tty)
- char *args;
- int from_tty;
+packet_command (char *args, int from_tty)
{
char *buf = alloca (PBUFSIZ);
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 (struct gdb_ext_thread_info *info);
-static void threadset_test_cmd PARAMS ((char *cmd, int tty));
+static void threadset_test_cmd (char *cmd, int tty);
-static void threadalive_test PARAMS ((char *cmd, int tty));
+static void threadalive_test (char *cmd, int tty);
-static void threadlist_test_cmd PARAMS ((char *cmd, int tty));
+static void threadlist_test_cmd (char *cmd, int tty);
-int get_and_display_threadinfo PARAMS ((threadref * ref));
+int get_and_display_threadinfo (threadref * ref);
-static void threadinfo_test_cmd PARAMS ((char *cmd, int tty));
+static void threadinfo_test_cmd (char *cmd, int tty);
-static int thread_display_step PARAMS ((threadref * ref, void *context));
+static int thread_display_step (threadref * ref, void *context);
-static void threadlist_update_test_cmd PARAMS ((char *cmd, int tty));
+static void threadlist_update_test_cmd (char *cmd, int tty);
-static void init_remote_threadtests PARAMS ((void));
+static void init_remote_threadtests (void);
#define SAMPLE_THREAD 0x05060708 /* Truncated 64 bit threadid */
static void
-threadset_test_cmd (cmd, tty)
- char *cmd;
- int tty;
+threadset_test_cmd (char *cmd, int tty)
{
int sample_thread = SAMPLE_THREAD;
static void
-threadalive_test (cmd, tty)
- char *cmd;
- int tty;
+threadalive_test (char *cmd, int tty)
{
int sample_thread = SAMPLE_THREAD;
printf_filtered ("FAIL: Thread alive test\n");
}
-void output_threadid PARAMS ((char *title, threadref * ref));
+void output_threadid (char *title, threadref * ref);
void
-output_threadid (title, ref)
- char *title;
- threadref *ref;
+output_threadid (char *title, threadref *ref)
{
char hexid[20];
}
static void
-threadlist_test_cmd (cmd, tty)
- char *cmd;
- int tty;
+threadlist_test_cmd (char *cmd, int tty)
{
int startflag = 1;
threadref nextthread;
}
void
-display_thread_info (info)
- struct gdb_ext_thread_info *info;
+display_thread_info (struct gdb_ext_thread_info *info)
{
output_threadid ("Threadid: ", &info->threadid);
printf_filtered ("Name: %s\n ", info->shortname);
}
int
-get_and_display_threadinfo (ref)
- threadref *ref;
+get_and_display_threadinfo (threadref *ref)
{
int result;
int set;
}
static void
-threadinfo_test_cmd (cmd, tty)
- char *cmd;
- int tty;
+threadinfo_test_cmd (char *cmd, int tty)
{
int athread = SAMPLE_THREAD;
threadref thread;
}
static int
-thread_display_step (ref, context)
- threadref *ref;
- void *context;
+thread_display_step (threadref *ref, void *context)
{
/* output_threadid(" threadstep ",ref); *//* simple test */
return get_and_display_threadinfo (ref);
}
static void
-threadlist_update_test_cmd (cmd, tty)
- char *cmd;
- int tty;
+threadlist_update_test_cmd (char *cmd, int tty)
{
printf_filtered ("Remote Threadlist update test\n");
remote_threadlist_iterator (thread_display_step, 0, CRAZY_MAX_THREADS);
#endif /* 0 */
+/* Convert a thread ID to a string. Returns the string in a static
+ buffer. */
+
+static char *
+remote_pid_to_str (int pid)
+{
+ static char buf[30];
+
+ sprintf (buf, "Thread %d", pid);
+ return buf;
+}
+
static void
-init_remote_ops ()
+init_remote_ops (void)
{
remote_ops.to_shortname = "remote";
remote_ops.to_longname = "Remote serial target in gdb-specific protocol";
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).";
+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_mourn_inferior = remote_mourn;
remote_ops.to_thread_alive = remote_thread_alive;
remote_ops.to_find_new_threads = remote_threads_info;
+ remote_ops.to_extra_thread_info = remote_threads_extra_info;
+ remote_ops.to_pid_to_str = remote_pid_to_str;
remote_ops.to_stop = remote_stop;
remote_ops.to_query = remote_query;
remote_ops.to_rcmd = remote_rcmd;
remote vector and adding to it. */
static void
-init_extended_remote_ops ()
+init_extended_remote_ops (void)
{
extended_remote_ops = remote_ops;
*/
static void
-remote_info_process (args, from_tty)
- char *args;
- int from_tty;
+remote_info_process (char *args, int from_tty)
{
char *buf = alloca (PBUFSIZ);
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. */
{
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 (
unpush_target (&remote_cisco_ops);
- remote_dcache = dcache_init (remote_read_bytes, remote_write_bytes);
-
remote_desc = SERIAL_OPEN (name);
if (!remote_desc)
perror_with_name (name);
push_target (&remote_cisco_ops); /* Switch to using cisco target now */
- init_packet_config (&remote_protocol_P);
- init_packet_config (&remote_protocol_Z);
+ init_all_packet_configs ();
general_thread = -2;
continue_thread = -2;
- /* Force remote_write_bytes to check whether target supports
- binary downloading. */
- init_packet_config (&remote_protocol_binary_download);
-
+ /* Probe for ability to use "ThreadInfo" query, as required. */
+ use_threadinfo_query = 1;
+ use_threadextra_query = 1;
+
/* 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
}
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))
+remote_cisco_mourn (void)
{
remote_mourn_1 (&remote_cisco_ops);
}
extern int quit_flag;
static int
-readsocket ()
+readsocket (void)
{
int data;
}
static int
-readtty ()
+readtty (void)
{
int tty_bytecount;
}
static int
-minitelnet ()
+minitelnet (void)
{
fd_set input; /* file descriptors for select */
int tablesize; /* max number of FDs for select */
}
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)
{
}
static void
-init_remote_cisco_ops ()
+init_remote_cisco_ops (void)
{
remote_cisco_ops.to_shortname = "cisco";
remote_cisco_ops.to_longname = "Remote serial target in cisco-specific protocol";
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_ops.to_extra_thread_info = remote_threads_extra_info;
remote_cisco_ops.to_stratum = process_stratum;
remote_cisco_ops.to_has_all_memory = 1;
remote_cisco_ops.to_has_memory = 1;
remote_can_async_p (void)
{
/* We're async whenever the serial device is. */
- return SERIAL_CAN_ASYNC_P (remote_desc);
+ 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 SERIAL_IS_ASYNC_P (remote_desc);
+ 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
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 (__FILE__, __LINE__,
+ "Calling remote_async when async is masked");
+
if (callback != NULL)
{
SERIAL_ASYNC (remote_desc, remote_async_serial_handler, NULL);
target. */
static void
-init_remote_async_ops ()
+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_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_ops.to_extra_thread_info = remote_threads_extra_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_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;
}
remote vector and adding to it. */
static void
-init_extended_async_remote_ops ()
+init_extended_async_remote_ops (void)
{
extended_async_remote_ops = remote_async_ops;
}
static void
-set_remote_cmd (args, from_tty)
- char *args;
- int from_tty;
+set_remote_cmd (char *args, int from_tty)
{
}
+static void
+show_remote_cmd (char *args, int from_tty)
+{
+
+ show_remote_protocol_Z_packet_cmd (args, from_tty);
+ show_remote_protocol_e_packet_cmd (args, from_tty);
+ show_remote_protocol_E_packet_cmd (args, from_tty);
+ show_remote_protocol_P_packet_cmd (args, from_tty);
+ show_remote_protocol_binary_download_cmd (args, from_tty);
+}
static void
-build_remote_gdbarch_data ()
+build_remote_gdbarch_data (void)
{
+ build_remote_packet_sizes ();
+
+ /* Cisco stuff */
tty_input = xmalloc (PBUFSIZ);
+ remote_address_size = TARGET_ADDR_BIT;
}
void
-_initialize_remote ()
+_initialize_remote (void)
{
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_remote_threadtests ();
#endif
+ /* set/show remote ... */
+
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, "\
+ add_prefix_cmd ("remote", class_maintenance, show_remote_cmd, "\
Remote protocol specific variables\n\
Configure various remote-protocol specific variables such as\n\
the packets being used",
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_set_cmd ("remotebreak", no_class,
var_boolean, (char *) &remote_break,
&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);
+ /* 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, show_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);
- remote_address_size = TARGET_PTR_BIT;
add_show_from_set
(add_set_cmd ("remoteaddresssize", class_obscure,
var_integer, (char *) &remote_address_size,
"X", "binary-download",
set_remote_protocol_binary_download_cmd,
show_remote_protocol_binary_download_cmd,
- &remote_set_cmdlist, &remote_show_cmdlist);
+ &remote_set_cmdlist, &remote_show_cmdlist,
+ 1);
#if 0
/* XXXX - should ``set remotebinarydownload'' be retained for
compatibility. */
add_info ("remote-process", remote_info_process,
"Query the remote system for process info.");
- add_packet_config_cmd (&remote_protocol_P, "P", "set-register",
+ add_packet_config_cmd (&remote_protocol_e,
+ "e", "step-over-range",
+ set_remote_protocol_e_packet_cmd,
+ show_remote_protocol_e_packet_cmd,
+ &remote_set_cmdlist, &remote_show_cmdlist,
+ 0);
+
+ add_packet_config_cmd (&remote_protocol_E,
+ "E", "step-over-range-w-signal",
+ set_remote_protocol_E_packet_cmd,
+ show_remote_protocol_E_packet_cmd,
+ &remote_set_cmdlist, &remote_show_cmdlist,
+ 0);
+
+ 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);
+ &remote_set_cmdlist, &remote_show_cmdlist,
+ 1);
+
+ add_packet_config_cmd (&remote_protocol_Z[Z_PACKET_SOFTWARE_BP],
+ "Z0", "software-breakpoint",
+ set_remote_protocol_Z_software_bp_packet_cmd,
+ show_remote_protocol_Z_software_bp_packet_cmd,
+ &remote_set_cmdlist, &remote_show_cmdlist,
+ 0);
+
+ add_packet_config_cmd (&remote_protocol_Z[Z_PACKET_HARDWARE_BP],
+ "Z1", "hardware-breakpoint",
+ set_remote_protocol_Z_hardware_bp_packet_cmd,
+ show_remote_protocol_Z_hardware_bp_packet_cmd,
+ &remote_set_cmdlist, &remote_show_cmdlist,
+ 0);
+
+ add_packet_config_cmd (&remote_protocol_Z[Z_PACKET_WRITE_WP],
+ "Z2", "write-watchpoint",
+ set_remote_protocol_Z_write_wp_packet_cmd,
+ show_remote_protocol_Z_write_wp_packet_cmd,
+ &remote_set_cmdlist, &remote_show_cmdlist,
+ 0);
+
+ add_packet_config_cmd (&remote_protocol_Z[Z_PACKET_READ_WP],
+ "Z3", "read-watchpoint",
+ set_remote_protocol_Z_read_wp_packet_cmd,
+ show_remote_protocol_Z_read_wp_packet_cmd,
+ &remote_set_cmdlist, &remote_show_cmdlist,
+ 0);
+
+ add_packet_config_cmd (&remote_protocol_Z[Z_PACKET_ACCESS_WP],
+ "Z4", "access-watchpoint",
+ set_remote_protocol_Z_access_wp_packet_cmd,
+ show_remote_protocol_Z_access_wp_packet_cmd,
+ &remote_set_cmdlist, &remote_show_cmdlist,
+ 0);
+
+ /* Keep the old ``set remote Z-packet ...'' working. */
+ tmpcmd = add_set_auto_boolean_cmd ("Z-packet", class_obscure,
+ &remote_Z_packet_detect,
+ "\
+Set use of remote protocol `Z' packets", &remote_set_cmdlist);
+ tmpcmd->function.sfunc = set_remote_protocol_Z_packet_cmd;
+ add_cmd ("Z-packet", class_obscure, show_remote_protocol_Z_packet_cmd,
+ "Show use of remote protocol `Z' packets ",
+ &remote_show_cmdlist);
}
projects / deliverable / binutils-gdb.git / blobdiff