/* Remote debugging interface for MIPS remote debugging protocol.
- Copyright 1993, 1994 Free Software Foundation, Inc.
+ Copyright 1993, 1994, 1995 Free Software Foundation, Inc.
Contributed by Cygnus Support. Written by Ian Lance Taylor
<ian@cygnus.com>.
#include "remote-utils.h"
#include <signal.h>
+#ifdef ANSI_PROTOTYPES
+#include <stdarg.h>
+#else
#include <varargs.h>
+#endif
+
+extern char *mips_read_processor_type PARAMS ((void));
+
+extern void mips_set_processor_type_command PARAMS ((char *, int));
+
\f
/* Prototypes for local functions. */
-static int
-mips_readchar PARAMS ((int timeout));
+static int mips_readchar PARAMS ((int timeout));
-static int
-mips_receive_header PARAMS ((unsigned char *hdr, int *pgarbage, int ch,
- int timeout));
+static int mips_receive_header PARAMS ((unsigned char *hdr, int *pgarbage,
+ int ch, int timeout));
-static int
-mips_receive_trailer PARAMS ((unsigned char *trlr, int *pgarbage, int *pch,
- int timeout));
+static int mips_receive_trailer PARAMS ((unsigned char *trlr, int *pgarbage,
+ int *pch, int timeout));
static int mips_cksum PARAMS ((const unsigned char *hdr,
const unsigned char *data,
int len));
-static void
-mips_send_packet PARAMS ((const char *s, int get_ack));
+static void mips_send_packet PARAMS ((const char *s, int get_ack));
static int mips_receive_packet PARAMS ((char *buff, int throw_error,
int timeout));
-static int
-mips_request PARAMS ((char cmd, unsigned int addr, unsigned int data,
- int *perr, int timeout));
+static int mips_request PARAMS ((char cmd, unsigned int addr,
+ unsigned int data, int *perr, int timeout));
-static void
-mips_initialize PARAMS ((void));
+static void mips_initialize PARAMS ((void));
-static void
-mips_open PARAMS ((char *name, int from_tty));
+static void mips_open PARAMS ((char *name, int from_tty));
-static void
-mips_close PARAMS ((int quitting));
+static void mips_close PARAMS ((int quitting));
-static void
-mips_detach PARAMS ((char *args, int from_tty));
+static void mips_detach PARAMS ((char *args, int from_tty));
static void mips_resume PARAMS ((int pid, int step,
enum target_signal siggnal));
-static int
-mips_wait PARAMS ((int pid, struct target_waitstatus *status));
+static int mips_wait PARAMS ((int pid, struct target_waitstatus *status));
-static int
-mips_map_regno PARAMS ((int regno));
+static int mips_map_regno PARAMS ((int regno));
-static void
-mips_fetch_registers PARAMS ((int regno));
+static void mips_fetch_registers PARAMS ((int regno));
-static void
-mips_prepare_to_store PARAMS ((void));
+static void mips_prepare_to_store PARAMS ((void));
-static void
-mips_store_registers PARAMS ((int regno));
+static void mips_store_registers PARAMS ((int regno));
-static int
-mips_fetch_word PARAMS ((CORE_ADDR addr));
+static int mips_fetch_word PARAMS ((CORE_ADDR addr));
-static int
-mips_store_word PARAMS ((CORE_ADDR addr, int value, char *old_contents));
+static int mips_store_word PARAMS ((CORE_ADDR addr, int value,
+ char *old_contents));
-static int
-mips_xfer_memory PARAMS ((CORE_ADDR memaddr, char *myaddr, int len,
- int write, struct target_ops *ignore));
+static int mips_xfer_memory PARAMS ((CORE_ADDR memaddr, char *myaddr, int len,
+ int write, struct target_ops *ignore));
-static void
-mips_files_info PARAMS ((struct target_ops *ignore));
+static void mips_files_info PARAMS ((struct target_ops *ignore));
-static void
-mips_create_inferior PARAMS ((char *execfile, char *args, char **env));
+static void mips_create_inferior PARAMS ((char *execfile, char *args,
+ char **env));
-static void
-mips_mourn_inferior PARAMS ((void));
+static void mips_mourn_inferior PARAMS ((void));
/* A forward declaration. */
extern struct target_ops mips_ops;
The value is
0x40 + seq
An acknowlegment packet contains the sequence number of the
- packet being acknowledged plus 1 module 64. Data packets are
+ packet being acknowledged plus 1 modulo 64. Data packets are
transmitted in sequence. There may only be one outstanding
unacknowledged data packet at a time. The sequence numbers
are independent in each direction. If an acknowledgement for
inconsistent state. */
static NORETURN void
+#ifdef ANSI_PROTOTYPES
+mips_error (char *string, ...)
+#else
mips_error (va_alist)
va_dcl
+#endif
{
va_list args;
- char *string;
+#ifdef ANSI_PROTOTYPES
+ va_start (args, string);
+#else
+ char *string;
va_start (args);
+ string = va_arg (args, char *);
+#endif
+
target_terminal_ours ();
wrap_here(""); /* Force out any buffered output */
gdb_flush (gdb_stdout);
if (error_pre_print)
fprintf_filtered (gdb_stderr, error_pre_print);
- string = va_arg (args, char *);
vfprintf_filtered (gdb_stderr, string, args);
fprintf_filtered (gdb_stderr, "\n");
va_end (args);
int ch;
static int state = 0;
static char nextstate[5] = { '<', 'I', 'D', 'T', '>' };
+#ifdef MAINTENANCE_CMDS
+ int i;
+
+ i = timeout;
+ if (i == -1 && watchdog > 0)
+ i = watchdog;
+#endif
if (state == 5)
timeout = 1;
ch = SERIAL_READCHAR (mips_desc, timeout);
+#ifdef MAINTENANCE_CMDS
+ if (ch == SERIAL_TIMEOUT && timeout == -1) /* Watchdog went off */
+ {
+ target_mourn_inferior ();
+ error ("Watchdog has expired. Target detached.\n");
+ }
+#endif
if (ch == SERIAL_EOF)
mips_error ("End of file from remote");
if (ch == SERIAL_ERROR)
state = 0;
- mips_error ("Remote board reset");
+ /* At this point, about the only thing we can do is abort the command
+ in progress and get back to command level as quickly as possible. */
+
+ error ("Remote board reset, debug protocol re-initialized.");
}
if (ch == nextstate[state])
char rcmd;
int rerrflg;
int rresponse;
-
+
if (cmd != '\0')
{
if (mips_need_reply)
char *name;
int from_tty;
{
+ char *ptype;
+
if (name == 0)
error (
"To open a MIPS remote debugging connection, you need to specify what serial\n\
if (from_tty)
printf_unfiltered ("Remote MIPS debugging using %s\n", name);
- push_target (&mips_ops); /* Switch to using remote target now */
+
+ /* Switch to using remote target now. */
+ push_target (&mips_ops);
/* FIXME: Should we call start_remote here? */
+
+ /* Try to figure out the processor model if possible. */
+ ptype = mips_read_processor_type ();
+ if (ptype)
+ mips_set_processor_type_command (strsave (ptype), 0);
+
+/* This is really the job of start_remote however, that makes an assumption
+ that the target is about to print out a status message of some sort. That
+ doesn't happen here (in fact, it may not be possible to get the monitor to
+ send the appropriate packet). */
+
+ flush_cached_frames ();
+ registers_changed ();
+ stop_pc = read_pc ();
+ set_current_frame (create_new_frame (read_fp (), stop_pc));
+ select_frame (get_current_frame (), 0);
+ print_stack_frame (selected_frame, -1, 1);
}
/* Close a connection to the remote board. */
mips_mourn_inferior, /* to_mourn_inferior */
NULL, /* to_can_run */
NULL, /* to_notice_signals */
+ 0, /* to_thread_alive */
+ 0, /* to_stop */
process_stratum, /* to_stratum */
NULL, /* to_next */
1, /* to_has_all_memory */
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