* remote-mips.c (close_ports, mips_initialize_cleanups)
(mips_exit_cleanups, mips_send_command, mips_open, pmon_open) (ddb_open, lsi_open, mips_remove_breakpoint, mips_remove_watchpoint) (mips_stopped_by_watchpoint, send_srec, pmon_checkset) (pmon_make_fastrec, pmon_check_ack, mips_expect_download) (pmon_check_entry_address, pmon_check_total, pmon_end_download) (pmon_download, pmon_load_fast, _initialize_remote_mips): Add comments describing each of these functions. (mips_enter_debug, mips_exit_debug, common_open) (mips_signal_from_protocol, pmon_makeb64, pmon_zeroset): Add blank line after the comment describing the function.
This commit is contained in:
Kevin Buettner
parent
4c5193b7db
commit
477c84a75f
@ -1,3 +1,17 @@
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2010-03-10 Kevin Buettner <kevinb@redhat.com>
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* remote-mips.c (close_ports, mips_initialize_cleanups)
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(mips_exit_cleanups, mips_send_command, mips_open, pmon_open)
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(ddb_open, lsi_open, mips_remove_breakpoint, mips_remove_watchpoint)
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(mips_stopped_by_watchpoint, send_srec, pmon_checkset)
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(pmon_make_fastrec, pmon_check_ack, mips_expect_download)
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(pmon_check_entry_address, pmon_check_total, pmon_end_download)
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(pmon_download, pmon_load_fast, _initialize_remote_mips): Add
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comments describing each of these functions.
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(mips_enter_debug, mips_exit_debug, common_open)
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(mips_signal_from_protocol, pmon_makeb64, pmon_zeroset): Add
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blank line after the comment describing the function.
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2010-03-10 Jan Kratochvil <jan.kratochvil@redhat.com>
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* solib-svr4.c (svr4_exec_displacement): Return now success, new
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@ -451,6 +451,9 @@ static int monitor_warnings;
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inferior_ptid. */
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static ptid_t remote_mips_ptid;
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/* Close any ports which might be open. Reset certain globals indicating
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the state of those ports. */
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static void
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close_ports (void)
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{
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@ -1290,18 +1293,25 @@ mips_request (int cmd,
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return rresponse;
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}
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/* Cleanup associated with mips_initialize(). */
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static void
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mips_initialize_cleanups (void *arg)
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{
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mips_initializing = 0;
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}
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/* Cleanup associated with mips_exit_debug(). */
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static void
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mips_exit_cleanups (void *arg)
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{
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mips_exiting = 0;
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}
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/* Send a command and wait for that command to be echoed back. Wait,
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too, for the following prompt. */
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static void
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mips_send_command (const char *cmd, int prompt)
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{
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@ -1313,6 +1323,7 @@ mips_send_command (const char *cmd, int prompt)
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}
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/* Enter remote (dbx) debug mode: */
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static void
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mips_enter_debug (void)
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{
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@ -1343,6 +1354,7 @@ mips_enter_debug (void)
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}
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/* Exit remote (dbx) debug mode, returning to the monitor prompt: */
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static int
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mips_exit_debug (void)
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{
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@ -1505,6 +1517,7 @@ mips_initialize (void)
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}
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/* Open a connection to the remote board. */
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static void
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common_open (struct target_ops *ops, char *name, int from_tty,
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enum mips_monitor_type new_monitor,
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@ -1629,6 +1642,8 @@ device is attached to the target board (e.g., /dev/ttya).\n"
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xfree (serial_port_name);
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}
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/* Open a connection to an IDT board. */
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static void
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mips_open (char *name, int from_tty)
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{
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@ -1652,12 +1667,16 @@ mips_open (char *name, int from_tty)
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common_open (&mips_ops, name, from_tty, MON_IDT, monitor_prompt);
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}
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/* Open a connection to a PMON board. */
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static void
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pmon_open (char *name, int from_tty)
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{
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common_open (&pmon_ops, name, from_tty, MON_PMON, "PMON> ");
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}
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/* Open a connection to a DDB board. */
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static void
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ddb_open (char *name, int from_tty)
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{
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@ -1672,6 +1691,8 @@ rockhopper_open (char *name, int from_tty)
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common_open (&rockhopper_ops, name, from_tty, MON_ROCKHOPPER, "NEC01>");
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}
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/* Open a connection to an LSI board. */
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static void
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lsi_open (char *name, int from_tty)
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{
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@ -1735,6 +1756,7 @@ mips_resume (struct target_ops *ops,
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/* Return the signal corresponding to SIG, where SIG is the number which
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the MIPS protocol uses for the signal. */
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static enum target_signal
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mips_signal_from_protocol (int sig)
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{
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@ -2324,6 +2346,8 @@ mips_insert_breakpoint (struct gdbarch *gdbarch,
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return memory_insert_breakpoint (gdbarch, bp_tgt);
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}
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/* Remove a breakpoint. */
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static int
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mips_remove_breakpoint (struct gdbarch *gdbarch,
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struct bp_target_info *bp_tgt)
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@ -2382,6 +2406,8 @@ mips_insert_watchpoint (CORE_ADDR addr, int len, int type)
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return 0;
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}
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/* Remove a watchpoint. */
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int
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mips_remove_watchpoint (CORE_ADDR addr, int len, int type)
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{
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@ -2391,6 +2417,9 @@ mips_remove_watchpoint (CORE_ADDR addr, int len, int type)
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return 0;
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}
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/* Test to see if a watchpoint has been hit. Return 1 if so; return 0,
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if not. */
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int
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mips_stopped_by_watchpoint (void)
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{
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@ -2685,6 +2714,11 @@ mips_common_breakpoint (%s): Got error: 0x%x\n",
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return 0;
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}
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/* Send one S record as specified by SREC of length LEN, starting
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at ADDR. Note, however, that ADDR is not used except to provide
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a useful message to the user in the event that a NACK is received
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from the board. */
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static void
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send_srec (char *srec, int len, CORE_ADDR addr)
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{
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@ -2905,6 +2939,7 @@ static char encoding[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz01
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at a time (range 0..63). Keep a checksum if required (passed
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pointer non-NULL). The function returns the number of encoded
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characters written into the buffer. */
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static int
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pmon_makeb64 (unsigned long v, char *p, int n, int *chksum)
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{
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@ -2949,6 +2984,7 @@ pmon_makeb64 (unsigned long v, char *p, int n, int *chksum)
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/* Shorthand function (that could be in-lined) to output the zero-fill
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escape sequence into the data stream. */
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static int
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pmon_zeroset (int recsize, char **buff, int *amount, unsigned int *chksum)
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{
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@ -2961,6 +2997,20 @@ pmon_zeroset (int recsize, char **buff, int *amount, unsigned int *chksum)
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return (recsize + count + 2);
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}
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/* Add the checksum specified by *VALUE to end of the record under
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construction. *BUF specifies the location at which to begin
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writing characters comprising the checksum information. RECSIZE
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specifies the size of the record constructed thus far. (A trailing
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NUL character may be present in the buffer holding the record, but
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the record size does not include this character.)
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Return the total size of the record after adding the checksum escape,
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the checksum itself, and the trailing newline.
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The checksum specified by *VALUE is zeroed out prior to returning.
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Additionally, *BUF is updated to refer to the location just beyond
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the record elements added by this call. */
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static int
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pmon_checkset (int recsize, char **buff, int *value)
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{
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@ -2991,6 +3041,32 @@ pmon_checkset (int recsize, char **buff, int *value)
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/* NOTE: This constant depends on the monitor being used. This value
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is for PMON 5.x on the Cogent Vr4300 board. */
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/* Create a FastLoad format record.
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*OUTBUF is the buffer into which a FastLoad formatted record is
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written. On return, the pointer position represented by *OUTBUF
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is updated to point at the end of the data, i.e. the next position
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in the buffer that may be written. No attempt is made to NUL-
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terminate this portion of the record written to the buffer.
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INBUF contains the binary input data from which the FastLoad
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formatted record will be built. *INPTR is an index into this
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buffer. *INPTR is updated as the input is consumed. Thus, on
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return, the caller has access to the position of the next input
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byte yet to be processed. INAMOUNT is the size, in bytes, of the
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input data.
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*RECSIZE will be written with the size of the record written to the
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output buffer prior to returning. This size does not include a
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NUL-termination byte as none is written to the output buffer.
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*CSUM is the output buffer checksum. It is updated as data is
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written to the output buffer.
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*ZEROFILL is the current number of 3-byte zero sequences that have
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been encountered. It is both an input and an output to this
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function. */
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static void
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pmon_make_fastrec (char **outbuf, unsigned char *inbuf, int *inptr,
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int inamount, int *recsize, unsigned int *csum,
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@ -3048,6 +3124,10 @@ pmon_make_fastrec (char **outbuf, unsigned char *inbuf, int *inptr,
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return;
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}
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/* Attempt to read an ACK. If an ACK is not read in a timely manner,
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output the message specified by MESG. Return -1 for failure, 0
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for success. */
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static int
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pmon_check_ack (char *mesg)
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{
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@ -3090,6 +3170,12 @@ pmon_start_download (void)
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}
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}
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/* Look for the string specified by STRING sent from the target board
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during a download operation. If the string in question is not
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seen, output an error message, remove the temporary file, if
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appropriate, and return 0. Otherwise, return 1 to indicate
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success. */
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static int
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mips_expect_download (char *string)
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{
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@ -3104,6 +3190,15 @@ mips_expect_download (char *string)
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return 1;
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}
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/* Look for messages from the target board associated with the entry
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address.
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NOTE: This function doesn't indicate success or failure, so we
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have no way to determine whether or not the output from the board
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was correctly seen. However, given that other items are checked
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after this, it seems unlikely that those checks will pass if this
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check doesn't first (silently) pass. */
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static void
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pmon_check_entry_address (char *entry_address, int final)
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{
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@ -3114,6 +3209,10 @@ pmon_check_entry_address (char *entry_address, int final)
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mips_expect ("\r\n");
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}
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/* Look for messages from the target board showing the total number of
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bytes downloaded to the board. Output 1 for success if the tail
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end of the message was read correctly, 0 otherwise. */
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static int
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pmon_check_total (int bintotal)
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{
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@ -3124,6 +3223,13 @@ pmon_check_total (int bintotal)
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return mips_expect_download (" bytes\r\n");
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}
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/* Look for the termination messages associated with the end of
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a download to the board.
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Also, when `tftp_in_use' is set, issue the load command to the
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board causing the file to be transferred. (This is done prior
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to looking for the above mentioned termination messages.) */
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static void
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pmon_end_download (int final, int bintotal)
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{
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@ -3190,6 +3296,10 @@ pmon_end_download (int final, int bintotal)
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remove (tftp_localname); /* Remove temporary file */
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}
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/* Write the buffer specified by BUFFER of length LENGTH to either
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the board or the temporary file that'll eventually be transferred
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to the board. */
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static void
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pmon_download (char *buffer, int length)
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{
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@ -3199,6 +3309,9 @@ pmon_download (char *buffer, int length)
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serial_write (udp_in_use ? udp_desc : mips_desc, buffer, length);
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}
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/* Open object or executable file, FILE, and send it to the board
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using the FastLoad format. */
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static void
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pmon_load_fast (char *file)
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{
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@ -3430,6 +3543,10 @@ pmon_command (char *args, int from_tty)
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extern initialize_file_ftype _initialize_remote_mips; /* -Wmissing-prototypes */
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/* Initialize mips_ops, lsi_ops, ddb_ops, pmon_ops, and rockhopper_ops.
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Create target specific commands and perform other initializations
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specific to this file. */
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void
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_initialize_remote_mips (void)
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{
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