Architecture Overview

The system debugging architecture has the following components:

• XRAY Debugger for ChorusOS

• Remote debug server (RDBS) rdbs(1CC)

• ChorusOS debug server (DebugServer) chserver(1CC)

• Debug agent (DebugAgent)

The first three components run on the host. The fourth, the debug agent, runs on the target and communicates with the ChorusOS debug server through a serial connection. This is illustrated in Figure 10-2.

Figure 10-2 System Debugging Architecture

A more detailed description of the debugging architecture can be found in Chapter 2 and 3 of the ChorusOS Debug Architecture and API Specifications document (/opt/SUNWconn/SEW/4.0/chorus-doc/pdf/DebugApi.pdf).

System debugging is intended to be used for debugging different parts of the ChorusOS operating system. This includes the kernel, the system drivers, the BSP, and those supervisor actors that cannot be debugged with application debugging such as the AM, and the IOM. System debugging also allows you to debug interrupt and exception handlers. During system debugging, the whole operating system is affected.