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https://github.com/espressif/binutils-gdb.git
synced 2025-08-06 14:49:38 +08:00
Fri Aug 30 15:07:14 1996 James G. Smith <jsmith@cygnus.co.uk>
* remote-mips.c: Provide support for CAIRO target board. (cairo_open, cairo_ops): Added. (mips_monitor_type): MON_CAIRO Added. (mips_enter_debug, mips_exit_debug, mips_initialize, mips_fetch_registers, common_breakpoint, mips_load, _initialize_remote_mips): Updated. Add simple support for NEC CAIRO Vr4300 development board.
This commit is contained in:
Jackie Smith Cashion
@ -71,6 +71,8 @@ static void mips_open PARAMS ((char *name, int from_tty));
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static void pmon_open PARAMS ((char *name, int from_tty));
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static void cairo_open PARAMS ((char *name, int from_tty));
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static void mips_close PARAMS ((int quitting));
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static void mips_detach PARAMS ((char *args, int from_tty));
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@ -133,6 +135,7 @@ static void common_open PARAMS ((struct target_ops *ops, char *name,
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/* Forward declarations. */
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extern struct target_ops mips_ops;
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extern struct target_ops pmon_ops;
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extern struct target_ops cairo_ops;
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/* The MIPS remote debugging interface is built on top of a simple
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packet protocol. Each packet is organized as follows:
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@ -272,7 +275,8 @@ enum mips_monitor_type {
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/* IDT/SIM monitor being used: */
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MON_IDT,
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/* PMON monitor being used: */
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MON_PMON,
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MON_PMON, /* 3.0.83 [COGENT,EB,FP,NET] Algorithmics Ltd. Nov 9 1995 17:19:50 */
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MON_CAIRO, /* 2.7.473 [Cairo ,EL,FP,NET] Risq Modular Systems, Thu Jun 6 09:28:40 PDT 1996 */
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/* Last and unused value, for sizing vectors, etc. */
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MON_LAST
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};
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@ -1154,7 +1158,7 @@ mips_enter_debug ()
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mips_send_seq = 0;
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mips_receive_seq = 0;
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if (mips_monitor == MON_PMON)
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if (mips_monitor == MON_PMON || mips_monitor == MON_CAIRO)
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mips_send_command ("debug\015", 0);
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else /* assume IDT monitor by default */
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mips_send_command ("db tty0\015", 0);
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@ -1165,7 +1169,7 @@ mips_enter_debug ()
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mips_receive_header will eat up a reasonable number of characters
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whilst looking for the SYN, however this avoids the "garbage"
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being displayed to the user. */
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if (mips_monitor == MON_PMON)
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if (mips_monitor == MON_PMON || mips_monitor == MON_CAIRO)
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mips_expect ("\015");
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{
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@ -1181,14 +1185,31 @@ mips_exit_debug ()
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{
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int err;
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mips_request ('x', (unsigned int) 0, (unsigned int) 0, &err,
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if (mips_monitor == MON_CAIRO)
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{
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/* The Cairo version of PMON exits immediately, so we do not get
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a reply to this command: */
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mips_request ('x', (unsigned int) 0, (unsigned int) 0, NULL,
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mips_receive_wait, NULL);
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mips_need_reply = 0;
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if (!mips_expect (" break!"))
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return -1;
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}
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else
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mips_request ('x', (unsigned int) 0, (unsigned int) 0, &err,
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mips_receive_wait, NULL);
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if (mips_monitor == MON_PMON && !mips_expect ("Exiting remote debug mode"))
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return -1;
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if (!mips_expect ("\015\012"))
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return -1;
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if (mips_monitor == MON_CAIRO)
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{
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if (!mips_expect ("\012"))
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return -1;
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}
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else
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if (!mips_expect ("\015\012"))
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return -1;
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if (!mips_expect (mips_monitor_prompt))
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return -1;
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@ -1224,7 +1245,7 @@ mips_initialize ()
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/* Force the system into the monitor. After this we *should* be at
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the mips_monitor_prompt. */
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if (mips_monitor == MON_PMON)
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if (mips_monitor == MON_PMON || mips_monitor == MON_CAIRO)
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j = 0; /* start by checking if we are already at the prompt */
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else
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j = 1; /* start by sending a break */
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@ -1244,7 +1265,7 @@ mips_initialize ()
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break;
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case 3: /* Then, try escaping from download */
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{
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if (mips_monitor == MON_PMON)
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if (mips_monitor == MON_PMON || mips_monitor == MON_CAIRO)
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{
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char tbuff[7];
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@ -1293,7 +1314,7 @@ mips_initialize ()
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break;
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}
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if (mips_monitor == MON_PMON)
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if (mips_monitor == MON_PMON || mips_monitor == MON_CAIRO)
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{
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/* Ensure the correct target state: */
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mips_send_command ("set regsize 64\015", -1);
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@ -1410,6 +1431,17 @@ pmon_open (name, from_tty)
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common_open (&pmon_ops, name, from_tty);
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}
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static void
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cairo_open (name, from_tty)
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char *name;
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int from_tty;
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{
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/* The PMON monitor has a prompt different from the default
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"TARGET_MONITOR_PROMPT": */
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mips_monitor_prompt = "NEC010>";
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mips_monitor = MON_CAIRO;
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common_open (&cairo_ops, name, from_tty);
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}
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/* Close a connection to the remote board. */
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@ -1713,15 +1745,14 @@ mips_fetch_registers (regno)
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val = 0;
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else
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{
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#if 0 /* Unfortunately the PMON version in the Vr4300 board has been
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/* Unfortunately the PMON version in the Vr4300 board has been
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compiled without the 64bit register access commands. This
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means we cannot get hold of the full register width. */
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if (mips_monitor == MON_PMON)
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val = mips_request ('t', (unsigned int) mips_map_regno (regno),
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if (mips_monitor == MON_CAIRO)
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val = (unsigned)mips_request ('t', (unsigned int) mips_map_regno (regno),
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(unsigned int) 0, &err, mips_receive_wait, NULL);
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else
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#endif
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val = mips_request ('r', (unsigned int) mips_map_regno (regno),
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val = (unsigned)mips_request ('r', (unsigned int) mips_map_regno (regno),
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(unsigned int) 0, &err, mips_receive_wait, NULL);
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if (err)
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mips_error ("Can't read register %d: %s", regno,
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@ -2305,9 +2336,13 @@ common_breakpoint (cmd, addr, mask, flags)
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if (rerrflg != 0)
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{
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/* Cairo returns "0x0 b 0x16 0x0\000", whereas
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Cogent returns "0x0 b 0xffffffff 0x16\000": */
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if (mips_monitor == MON_CAIRO)
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rresponse = rerrflg;
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if (rresponse != 22) /* invalid argument */
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fprintf_unfiltered (stderr, "common_breakpoint (0x%x): Got error: 0x%x\n",
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addr, rresponse);
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(unsigned int)addr, rresponse);
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return 1;
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}
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@ -2745,8 +2780,8 @@ pmon_load_fast (file)
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bintotal += s->_raw_size;
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final = (s->vma + s->_raw_size);
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printf_filtered ("%s\t: 0x%4x .. 0x%4x ", s->name, s->vma,
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s->vma + s->_raw_size);
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printf_filtered ("%s\t: 0x%4x .. 0x%4x ", s->name, (unsigned int)s->vma,
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(unsigned int)(s->vma + s->_raw_size));
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gdb_flush (gdb_stdout);
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/* Output the starting address */
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@ -2859,7 +2894,7 @@ mips_load (file, from_tty)
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if (mips_exit_debug ())
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error ("mips_load: Couldn't get into monitor mode.");
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if (mips_monitor == MON_PMON)
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if (mips_monitor == MON_PMON || mips_monitor == MON_CAIRO)
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pmon_load_fast (file);
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else
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mips_load_srec (file);
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@ -2979,11 +3014,62 @@ colon, HOST:PORT to access a board over a network", /* to_doc */
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OPS_MAGIC /* to_magic */
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};
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/* Another alternative target vector. This is a PMON system, but with
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a different monitor prompt, aswell as some other operational
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differences: */
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struct target_ops cairo_ops =
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{
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"cairo", /* to_shortname */
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"Remote MIPS debugging over serial line", /* to_longname */
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"\
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Debug a board using the PMON MIPS remote debugging protocol over a serial\n\
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line. The argument is the device it is connected to or, if it contains a\n\
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colon, HOST:PORT to access a board over a network", /* to_doc */
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cairo_open, /* to_open */
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mips_close, /* to_close */
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NULL, /* to_attach */
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mips_detach, /* to_detach */
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mips_resume, /* to_resume */
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pmon_wait, /* to_wait */
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mips_fetch_registers, /* to_fetch_registers */
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mips_store_registers, /* to_store_registers */
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mips_prepare_to_store, /* to_prepare_to_store */
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mips_xfer_memory, /* to_xfer_memory */
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mips_files_info, /* to_files_info */
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mips_insert_breakpoint, /* to_insert_breakpoint */
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mips_remove_breakpoint, /* to_remove_breakpoint */
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NULL, /* to_terminal_init */
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NULL, /* to_terminal_inferior */
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NULL, /* to_terminal_ours_for_output */
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NULL, /* to_terminal_ours */
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NULL, /* to_terminal_info */
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mips_kill, /* to_kill */
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mips_load, /* to_load */
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NULL, /* to_lookup_symbol */
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mips_create_inferior, /* to_create_inferior */
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mips_mourn_inferior, /* to_mourn_inferior */
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NULL, /* to_can_run */
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NULL, /* to_notice_signals */
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0, /* to_thread_alive */
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0, /* to_stop */
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process_stratum, /* to_stratum */
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NULL, /* to_next */
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1, /* to_has_all_memory */
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1, /* to_has_memory */
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1, /* to_has_stack */
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1, /* to_has_registers */
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1, /* to_has_execution */
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NULL, /* sections */
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NULL, /* sections_end */
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OPS_MAGIC /* to_magic */
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};
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void
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_initialize_remote_mips ()
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{
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add_target (&mips_ops);
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add_target (&pmon_ops);
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add_target (&cairo_ops);
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add_show_from_set (
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add_set_cmd ("timeout", no_class, var_zinteger,
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