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Release Notes for Arm® Development Studio 2020.0

Introduction

The release notes contain:

• A highlight of the tools included in the suite
• What's new in version 2020.0
• How to get started with Development Studio
• How to provide feedback and get support
• Known limitations in this release

What's included in Development Studio?

Arm Development Studio IDE

Development Studio helps you build, code, debug and optimize Arm-based projects quickly. From device bring-up to application debug to creating highly efficient micro-controller applications, Development Studio enables you to bring better products to market ahead of the competition.

Arm Compiler

Arm Compiler 5 and Arm Compiler 6 toolchains enable you to build highly optimized embedded applications for the entire range of Arm processors. Arm Compiler 5 supports all Arm architectures from Armv4 to Armv7 inclusive. Arm Compiler 6 supports Armv6-M, Armv7, and Armv8 architectures.

Arm Debugger

Arm Debugger is a graphical debugger supporting software development on Arm processor-based targets and Fixed Virtual Platforms (FVP). The Arm Debugger includes support for SoC bring-up with platform configuration utilities using the Arm ULINK™ and DSTREAM debug probes families.

Arm Fixed Virtual Platforms

Fixed Virtual Platforms (FVPs) provide the ideal combination of performance, flexibility and usability for development and debug at all levels of the software stack. Based on Arm Fast Models, a library of FVPs is supplied with Development Studio for Cortex-A, Cortex-R and Cortex-M processors. In addition, Development Studio supports custom FVPs created using the Arm Fast Models package, via the Platform Configuration Editor (PCE).

Arm Streamline

Arm Streamline is a system-wide performance profiler which can be used to analyse Linux, Android, and bare-metal embedded systems. Streamline's visualization tools make it easy to identify performance bottlenecks in software running on Arm CPUs, and data-plane workloads running on Arm Mali GPUs and other Arm IP. This is supplemented by a hot-spot software profiler which can identify the dominant functions and call paths in application software, enabling performance tuning of the entire system platform.

Arm Graphics Analyzer

Arm Graphics Analyzer allows you to capture and visualize OpenGL ES, Vulkan and OpenCL API calls made by an application, including capture of application assets and generation of debug visualizations of the application framebuffers. This can be used to identify which API calls are responsible for rendering defects, and makes it easy to identify rendering inefficiencies and performance issues. Arm Graphics Analyzer was formerly known as Mali Graphics Debugger. 

Development Studio 2020.0

Arm Development Studio IDE

• Eclipse updated to 2019-09 (4.13)
• Example code included for Cortex-M55, Cortex-A77, and Neoverse N1 processors

Arm Compiler

• Updated to version 6.14 for the latest features, bug fixes and performance improvements. The complete release notes are available on the Arm Compiler 6 Downloads page.

Arm Debugger

This release of Development Studio includes the following new features and enhancements:

• Debug for Cortex-M55 and STAR processors enabled in Bronze Edition
• Debug for Cortex-A34, Cortex-A77 and Neoverse N1 processors now included in Silver edition
• Arm Custom Instructions support is enabled in all editions
• ST-Link and FTDI debug probe connections supported in all editions
• Improved support for the ULINK family of debug probes and other third party probes in the Platform Configuration Editor (PCE) and CSAT-600
• Support included for SoC-600 CATU
• Iris debug and trace interface supported for virtual prototypes
• Arm Debugger Debug Probe API shipped as part of the installation
• New platform debug configurations included for
• Cortex-M33 (SSE-200 Subsystem) MPS2+ FPGA
• Cortex-M33 (SSE-200 Subsystem) MPS3 FPGA 
• Corstone-700 MPS3 FPGA
• DesignStart A5 MPS3 FPGA
• Raspberry Pi 4
• NVIDIA Xavier
• Renesas R-Car D3
• Renesas R-Car V3M
• Renesas R-Car E3
• New Arm Fixed Virtual Platform (FVP) debug configurations added for
• MPS2 Cortex-M55
• Base Neoverse N1
• Base Cortex-A77

For a complete list of supported device please visit the Supported Devices page

Arm Fixed Virtual Platforms

Updated to version 11.10 for the latest features, bug fixes and performance improvements. The complete release notes are available on the Fast Models Release History page.

Arm Streamline

This release of Development Studio includes the following new features and enhancements:

• Updated to version 7.2.
• New device support for:
• Cortex-M55
• Cortex-A34
• Cortex-A77
• Mali-G57

The following deprecated features have been removed in this release:

• Streamline provides backwards compatibility for loading data files from tool releases made in the prior two years. This release removes support for loading files generated with Streamline 6.5 or older.
• Data capture using gatord built from older tool releases. Data capture must now use the version of gatord shipped with the host tool being used.
• Kernel mode data capture using the gator.ko kernel module. Data capture must now use gatord to collect data using standard Linux Perf data collection interfaces.
• Model data capture from Arm SoC Designer.

Arm Graphics Analyzer

This release of Development Studio includes the following new features and enhancements:

• Updated to version 5.5
• Improved Android 10 interception for OpenGL ES and Vulkan

The following deprecated feature has been removed in this release:

• Replaying captured traces on Android and Linux targets. The recommended alternatives for capturing and replaying API sequences are:
• OpenGL ES: Arm PATrace application, available at https://github.com/ARM-software/patrace.
• Vulkan: LunarG vktrace application, available at https://github.com/LunarG/VulkanTools/tree/master/vktrace

Supported Host Platforms

The list of supported host platforms is available online, in the Hardware and host platform requirements section of the Getting Started Guide.
Important note: Support for RedHat Enterprise Linux 6 is deprecated, and Microsoft Windows 7 operating system support will be discontinued in future releases.

Getting Started

For an in-depth introduction to Development Studio, system requirements and installation instructions, please consult the online Getting started page. A copy of the Getting started guide is also included in your installation of Development Studio and accessible from within the IDE.
If you are migrating from DS-5, there also is a DS-5 migration guide to help you transition quickly.

Feedback & Support

You can find tutorials, documentation and videos on the Development Studio Learn page.
For technical support, go to our Support page. You can also raise queries and support issues relating to Development Studio on the Arm Community website.

Noteworthy Issues and Limitations

• Arm Graphics Analyzer Linux target device detection via UDP broadcast on the local subnet is unreliable on Ubuntu 18.04 host machines. If your device is not detected you will need to connect directly by specifying the target device's IP address and port number.
• Arm DS IDE [DSCORE-8640] - When opening a workspace created with a previous version of Arm DS, the IDE prompts you to upgrade your workspace, with an option to change to another workspace rather than perform the upgrade.
  
  However, the change workspace option incorrectly shows the same dialog again rather than allowing another workspace to be selected. This is a known defect with the Eclipse IDE (See https://bugs.eclipse.org/bugs/show_bug.cgi?id=551260).
  
  To change the workspace, start Arm DS IDE from the command line and pass the workspace directory path as a parameter. For example, 'armds_ide -data /path/to/workspace'.
  
  Also note that when you upgrade your workspace, the upgraded workspace settings might no longer work with earlier versions. The projects in your workspace are not affected when upgrading your workspace.

• Arm DS IDE [DSCORE-8365] - On Ubuntu 16.04 the IDE has a degraded UI experience. This is due to an underlying GTK 3.18 bug that affects cell editors in Tables. It is a known issue with Eclipse (see https://bugs.eclipse.org/bugs/show_bug.cgi?id=533221).
  
  Affected functionality:
• Platform Configuration Editor: You can no longer change the values of the configuration options in the PCE directly. Instead, you must manually edit the values in the SDF/MDF file.
• Manage Signals dialog box: You can no longer configure signal handling in the Manage Signals dialog box. Instead, use the handle command.