mipsdbx.htm

mips架构的bootloader,99左右的版本 但源代码现在没人更新了

<title>Source-Level Debug with dbx</title>
<h1>Source-Level Debug with dbx</h1>

<!--INDEX "Source-Level Debug with MIPS' dbx" -->
<!--INDEX "MIPS' dbx" -->

This page describes the procedure for using MIPS' dbx with PMON/IMON. This
procedure will <em>not</em> work with Sun's dbx. The Sun dbx is targeted
to the Sparc, the MIPS dbx is targeted to the MIPS R3000.<p>

To use PMON/IMON with MIPS' dbx, you will need two serial ports. One
serial port (connected to the Monitor's tty0) will be used as the console. This 
port is used to issue the command 'debug'. It is also the port where
program I/O will appear. The second port is used for dbx to communicate  
with the Monitor's tty1. It is also used to download the program prior to
switching to 'debug' mode.<p>

<pre>
-- Compile and link programs with -g

% cat /etc/remote.pdbx		Display port information on host port1.
port1:dv=/dev/tty1:br#9600:

% cat ~/.dbxinit 		Display setup for dbx.
set $pdbxport = "port1"
set $usesockets=0
set $manual_load = 1

PMON> set hostport tty1		Specify protocol and port for target.
PMON> set dlproto EtxAck 
PMON> set dlecho off 
PMON> load 			Prepare for download, and start.

% edown /dev/tty1 < test1.rec
% dbxr3000 -prom test1		Invoke dbx.

(dbx) stop in main		Optionally set breakpoint at main.
(dbx) run			Prepare for execution.

PMON> debug			Begin executing.
</pre><p>

See also the <a href="c_debug.htm">debug</a>
command.

</dl><p><hr>
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