2.1 Overview: Debug connections in DS-5 Debugger

You can set up connections to debug bare-metal targets, Linux kernel, and Linux or Android applications. You can also use the Snapshot Viewer feature to view previously captured application states.

Bare-metal debug connections

Bare-metal targets run without an underlying operating system. To debug bare-metal targets using DS-5 Debugger:
  • If debugging on hardware, use a debug hardware adapter connected to the host workstation and the debug target.
  • If debugging on a model, use a CADI-compliant connection between the debugger and a model.
  • For RTL simulators and hardware emulators, use VSTREAM to create connections.

Linux kernel debug connections

DS-5 Debugger supports source-level debugging of a Linux kernel. For example, you can set breakpoints in the kernel code, step through the source, inspect the call stack, and watch variables. The connection methodology is similar to bare-metal debug connections.

Linux application debug connections

For Linux application debugging in DS-5 Debugger, you can connect to your target using TCP/IP or serial connection.
Before attempting to connect to your target, you need to ensure that:
  • gdbserver is present on the target.

    Note

    • If gdbserver is not installed on the target, either see the documentation for your Linux distribution or check with your provider.
    • See the Debug System Requirements section in the latest DS-5 Release Notes for information about the minimum required version of gdbserver.
    • For ARMv8 AArch64 targets, you need to use the AArch64 gdbserver.
  • ssh daemon (sshd) must be running on the target to use the Remote System Explorer (RSE) in DS-5.
  • sftp-server must be present on the target to use RSE for file transfers.
  • Application rewind server running on the target if you are planning to use application rewind.

    Note

    The application rewind server file undodb-server can be found in the DS-5_install_directory\arm\undodb\linux folder.

Snapshot Viewer

Use the Snapshot Viewer to analyze and debug a read-only representation of the application state of your processor using previously captured data. For more information, see Chapter 9 Working with the Snapshot Viewer.
This is useful in scenarios where interactive debugging with a target is not possible.
Related concepts
1.4 Overview: Debugging ARM®-based Linux and Android applications
9.1 About the Snapshot Viewer
6.13 About application rewind
Related tasks
2.3 Configuring a connection to a bare-metal hardware target
2.7 Configuring a connection to a Linux kernel
2.6 Configuring a connection to a Linux application using gdbserver
2.5 Configuring a connection to a Fixed Virtual Platform (FVP) model for Linux application debug
2.8.1 Connecting to an existing application and starting an application rewind session
2.8.2 Downloading your application and application rewind server to the target system
2.8.3 Starting the application rewind server and debugging the target-resident application
Related reference
Chapter 9 Working with the Snapshot Viewer
Non-ConfidentialPDF file icon PDF versionARM DUI0446W
Copyright © 2010-2015 ARM. All rights reserved.