XDC 2.92 Release Notes

March 12, 2007

Introduction, Documentation, What's New, Upgrade & Compatibility Information, Host Support, Dependencies, Device Support, Validation Info, Known Issues, Version Information, Technical Support.

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Introduction

eXpress DSP Components (XDC) is a standard for reusable software components, optimized for real-time embedded systems. XDC components have hardware-neutral formal interfaces, are configurable offline to optimize memory and performance, and support custom automation in the development environment via a scripting language.

XDC 2.92 is a minor product release for general availability. It includes the following sets of packages:

• XDC core (xdc.*) - the xdc and xs command line utilities for building packages and execting scripts, together with the packages that implement XDC itself;
• User tools (xdc.tools.*) - command-line and graphical utilities for working with packages and repositories;
• Targets (*.targets.*) - definitions for using various TI and third-party compiler tool chains with XDC;
• Platforms (ti.platforms.*) - definitions for linking and running code on various TI board-level hardware and simulator products using XDC.

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Documentation

The following documentation is available:

• XDC documents

Release notes from previous releases are also available in the relnotes_archive directory.

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What's New

The following significant changes have been made since 2.91

2.92 (This Release)

• Added ti.platform.* platform packages
• Added xdc.tools.repoman repository management tool
• Collapsed xdc.runtime.Error_clear() functionality into Error_init()
• Added two configs to xdc.runtime.Startup which are arrays of no-arg, void functions that are called before and after any Module_startup()
• Added '-mo' to options in config.bld so the rts libraries are built with each function in a separate section
• Documented XDC Module Binary Contract
• Support for gnu.* and microsoft.* targets in configuro
• Usability enhancements to XGCONF
• The following minor enhancements were resolved:

  ID	Headline
  SDSCM00006945	microsoft.targets does not support VC7 2003
  SDSCM00014435	The Win32 target is not compatible with VC 8.0

• And the following defects were resolved:

  ID	Headline
  SDSCM00014437	The Win32 target is missing rts library
  SDSCM00014572	gnu.targets.Linux86 target fails to build on some distros
  SDSCM00015515	Generated package.bld.xml file places wrong platform name for 67P

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Upgrade and Compatibility Information

• ti.targets - This package is compatible with the previous release. (Compatibility key: 1,0,0,0 -> 1,0,0,1)
• gnu.targets - This package is compatible with the previous release. (Compatibility key: 1,0,0,0 -> 1,0,0,1)

Warning: Beginning with xdc-o02, internal C files generated when building package schemas are named package_<package name>.c instead of <package_name>.c. This may introduce incompatibilities with older xdc-n and xdc-o trees (XDC 2.X products). The compatibility with metaonly xdc-m packages (XDC 1.X products) is still maintained.

Compatibility Key Definitions

Compatibility keys are intentionally independent of Marketing product numbers and are intended to:

1. Enable tooling to identify incompatibilities between components, and
2. Convey a level of compatibility between different releases to set end user expectations.

Compatibility keys are composed of 3 comma-delimited numbers - M,S,R - where:

• M = Major. A difference in M indicates a break in compatibility.
• S = Source. A difference in S indicates source compability. That is, the user's source doesn't require change, but does require rebuilding.
• R = Radix. A difference in R indicates an introduction of new features, but compatibility with previous interfaces has not broken. If libraries are provided by the package, an application must re-link with the new libraries, but not rebuild from source.

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Host Support

This release supports the following hosts:

• Windows XP
• RedHat Enterprise Linux 3

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Dependencies

This release requires the following other software components and tools versions to successfully function:

• C6x Code Generation Tools version 5.3.0. or later
• C55 Code Generation Tools version 3.2.0. or later
• GCC for x86 version 3.2.3 or later
• GCC for ARM version 3.2.3 or later

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Device Support

This release supports the following device families:

• C67P, C67, C64P, C64, C62
• C55P, C55, C54
• C28
• TMS470
• Native development host

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Validation Information

This release was built and validated against using the following components:

• C6x Code Generation Tools version 6.0.7
• C55 Code Generation Tools version 3.2.2
• GCC for x86 version 3.2.3
• GCC for ARM version 3.2.3

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Known Issues

There are no known issues in this release.

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Version Information

This product's version follows a version format, M.mm.pp.bb, where M is a single digit Major number, mm is 2 digit minor number, pp is a 2 digit patch number, and b is an unrestricted set of digits used as an incrementing build counter.

To support multiple side-by-side installations of the product, the product version is encoded in the top level directory, ex. xdc_2_92.

Subsequent releases of patch upgrades will be identified by the patch number, ex. XDC 2.92.01 with directory xdc_2_92_01. Typically, these patches only include critical bug fixes.

Please note that version numbers and compatibility keys are NOT the same. For an explanation of compatibility keys, please refer to the 'Upgrade and Compatibility Information' section.

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Technical Support

For technical support, contact rtsc_champs@list.ti.com

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Last updated: March 12, 2007