* remote-mips.c: Remove form feeds (^L) from source.
(mips_initialize): LSI PMON doesn't support 'set regsize' command. (pmon_wait): Don't need to exit and re-enter debug mode on LSI PMON after a continue; it causes target program misbehavior. (mips_fetch_register): Don't fetch unsupported registers; this cuts down on wasted serial traffic.
This commit is contained in:
Mark Alexander
parent
aeae2146e3
commit
266454ca50
@ -1,3 +1,12 @@
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Thu Feb 27 12:04:24 1997 Mark Alexander <marka@cygnus.com>
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* remote-mips.c: Remove form feeds (^L) from source.
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(mips_initialize): LSI PMON doesn't support 'set regsize' command.
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(pmon_wait): Don't need to exit and re-enter debug mode on LSI
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PMON after a continue; it causes target program misbehavior.
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(mips_fetch_register): Don't fetch unsupported registers; this
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cuts down on wasted serial traffic.
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Thu Feb 27 09:38:16 1997 Stu Grossman (grossman@critters.cygnus.com)
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* configure.in configure (HPUX/OSF thread support): Enable this
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@ -47,7 +47,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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extern void mips_set_processor_type_command PARAMS ((char *, int));
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/* Prototypes for local functions. */
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static int mips_readchar PARAMS ((int timeout));
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@ -152,7 +153,8 @@ static void common_open PARAMS ((struct target_ops *ops, char *name,
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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 ddb_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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@ -297,7 +299,7 @@ enum mips_monitor_type {
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/* PMON monitor being used: */
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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_DDB, /* 2.7.473 [DDBVR4300,EL,FP,NET] Risq Modular Systems, Thu Jun 6 09:28:40 PDT 1996 */
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MON_LSI, /* 4.2.5 [EB], LSI LOGIC Corp. Wed Dec 6 07:57:45 1995 */
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MON_LSI, /* 4.3.12 [EB,FP], LSI LOGIC Corp. Tue Feb 25 13:22:14 1997 */
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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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@ -1147,7 +1149,8 @@ mips_receive_packet (buff, throw_error, timeout)
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return len;
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}
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/* Optionally send a request to the remote system and optionally wait
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for the reply. This implements the remote debugging protocol,
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which is built on top of the packet protocol defined above. Each
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@ -1432,7 +1435,8 @@ mips_initialize ()
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if (mips_monitor != MON_IDT)
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{
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/* Ensure the correct target state: */
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mips_send_command ("set regsize 64\r", -1);
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if (mips_monitor != MON_LSI)
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mips_send_command ("set regsize 64\r", -1);
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mips_send_command ("set hostport tty0\r", -1);
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mips_send_command ("set brkcmd \"\"\r", -1);
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/* Delete all the current breakpoints: */
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@ -1668,6 +1672,7 @@ mips_resume (pid, step, siggnal)
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int pid, step;
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enum target_signal siggnal;
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{
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int err;
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/* start-sanitize-gm */
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#ifndef GENERAL_MAGIC
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@ -1678,10 +1683,12 @@ mips_resume (pid, step, siggnal)
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#endif /* GENERAL_MAGIC */
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/* end-sanitize-gm */
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/* LSI PMON requires returns a reply packet "0x1 s 0x0 0x57f" after
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a single step, so we wait for that. */
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mips_request (step ? 's' : 'c',
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(unsigned int) 1,
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(unsigned int) siggnal,
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(int *) NULL,
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mips_monitor == MON_LSI && step ? &err : (int *) NULL,
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mips_receive_wait, NULL);
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}
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@ -1844,7 +1851,7 @@ pmon_wait (pid, status)
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seems to be caused by a check on the number of arguments, and the
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command length, within the monitor causing it to echo the command
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as a bad packet. */
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if (mips_monitor != MON_DDB)
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if (mips_monitor != MON_DDB && mips_monitor != MON_LSI)
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{
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mips_exit_debug ();
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mips_enter_debug ();
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@ -1928,18 +1935,26 @@ mips_fetch_registers (regno)
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val = 0;
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else
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{
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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_DDB)
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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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/* If PMON doesn't support this register, don't waste serial
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bandwidth trying to read it. */
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int pmon_reg = mips_map_regno (regno);
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if (regno != 0 && pmon_reg == 0)
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val = 0;
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else
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val = 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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safe_strerror (errno));
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{
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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_DDB)
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val = (unsigned)mips_request ('t', (unsigned int) pmon_reg,
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(unsigned int) 0, &err, mips_receive_wait, NULL);
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else
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val = mips_request ('r', (unsigned int) pmon_reg,
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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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safe_strerror (errno));
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}
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}
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{
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@ -2235,7 +2250,8 @@ mips_mourn_inferior ()
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unpush_target (current_ops);
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generic_mourn_inferior ();
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}
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/* We can write a breakpoint and read the shadow contents in one
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operation. */
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@ -2540,7 +2556,8 @@ common_breakpoint (cmd, addr, mask, flags)
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return 0;
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}
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static void
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send_srec (srec, len, addr)
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char *srec;
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@ -3212,7 +3229,8 @@ mips_load (file, from_tty)
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clear_symtab_users ();
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}
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/* The target vector. */
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struct target_ops mips_ops =
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@ -3261,7 +3279,8 @@ HOST:PORT to access a board over a network", /* to_doc */
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NULL, /* sections_end */
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OPS_MAGIC /* to_magic */
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};
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/* An alternative target vector: */
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struct target_ops pmon_ops =
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{
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@ -3309,7 +3328,8 @@ colon, HOST:PORT to access a board over a network", /* to_doc */
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NULL, /* sections_end */
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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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@ -3415,7 +3435,8 @@ of the TFTP temporary file, if it differs from the filename seen by the board",
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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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