algogdb

MIPS处理器的bootloader,龙芯就是用的修改过的PMON2

Source-Level Debug with Algorithmics' gdb
Source-Level Debug with Algorithmics' gdb

To use the debug Monitor with Algorithmic's
gdb, 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 gdb to communicate with the Monitor's
tty1. It is also used to download the program prior to switching to
'debug' mode.

-- Compile and link programs with -g
PMONload				Prepare for download
% edown  debug				Enter gdb mode
(gdb) b main				Set breakpoint at main
(gdb) run				Start execution