Specifications

184 www.xilinx.com Embedded System Tools Guide (EDK 6.2i)

1-800-255-7778 UG111 (v1.4) January 30, 2004

Chapter 12: GNU Debugger

GDB Command Reference

For help on using mb-gdb, click on Help o Help Topics in the GUI mode

or type “help” in the console mode.

In the GUI mode, to open a console window, click on

View o Console

For a comprehensive online documentation on using GDB, refer to the GNU website.

For information about the mb-gdb Insight GUI, refer to the Red Hat Insight webpage

http://sources.redhat.com/insight.

Table 12-1 briefly describes the commonly used mb-gdb console commands. The

equivalent GUI versions can be easily identified in the mb-gdb GUI window icons. Some

of the commands like info target, monitor info, may be available only in the console mode.

Table 12-1: Commonly Used GDB Console Commands

Command Description

load [program] load the program into the target

b main Set a breakpoint in function main

r Run the program (for the built-in simulator only)

c Continue after a breakpoint, or

Run the program (for the xmd simulator only)

l View a listing of the program at the current point

n Steps one line (stepping over function calls)

s Step one line (stepping into function calls)

stepi Step one assembly line

info reg View register values

info target View the number of instructions and cycles executed (for

the built-in simulator only)

p xyz Print the value of xyz data