IAR 构建工具（RL78）

• The Renesas RL78/G24 Flexible Application Accelerator (FAA) co-processor is supported
  

  • The Renesas FAA assembler is incorporated in the IAR Embedded Workbench
  • FAA assembler-generated output is linked with the IAR linker

• Improved compliance with the CC-RL ABI specification
  

  Additional standard library functions and runtime routines have been implemented.

• Program corrections
  

  Errors have been corrected in the compiler, linker, and in IAR C-STAT.

• Library support for the C++17 language standard
  The toolset includes a new C++ library that supports C++17 library features. 
• Additional GNU C language extensions
  The IAR C/C++ Compiler supports a number of new GCC-style operators, attributes and expressions in extended language mode. 
• Iarbuild enhancements
  The iarbuild command line build utility now supports:
• Generating a Ninja build file based on the IAR Embedded Workbench project format
• Generating a JSON description of the Embedded Workbench project
• More C-STAT reporting and configuration methods
• C-STAT enhancements
• MISRA C:2012 Amendment 1
  The static analysis tool C-STAT has extended its coverage of the MISRA C:2012 Coding Standard and now fully supports MISRA C:2012 Amendment 1. This amendment adds 14 additional rules to MISRA C:2012 with a focus on security concerns highlighted by the ISO C Secure Guidelines. Several of these address specific issues pertaining to the use of untrustworthy data, a well-known security vulnerability.
• MISRA C:2012 Amendment 2
  

  The static analysis tool C-STAT has extended its coverage of the MISRA C:2012 Coding Standard and now fully supports MISRA C:2012 Amendment 2. This Amendment adds two additional rules to MISRA C:2012 and introduces support for ISO/IEC 9899:2011, commonly referred to as "C11".

• Improved performance
  Depending on the project, the analysis can be up to 40% faster and memory consumption reduced by up to 20%, compared to the previous version of C-STAT.
• Updated device support
  The device support files have been updated to the most recent version from Renesas.
• Updated user documentation
  The C/C++ Development Guide has been updated to reflect the product changes.

IAR Build Tools for Linux

This new product is called IAR Build Tools for Renesas RL78 and requires a separate product license. It is distributed as a Debian package for Ubuntu containing the IAR C/C++ Compiler, IAR Assembler, Linker and library tools, C-STAT, IARBuild, and runtime libraries.

RL78/G23 microcontroller group support

The RL78/G23 group of microcontrollers is now supported.

C-STAT enhancements

The static analysis tool C-STAT has extended its coverage of the SEI CERT C Coding Standard. The SEI CERT C Coding Standard's goal is to provide rules for developing safe, reliable, and secure systems in the C programming language, with support for C11 constructs. C-STAT covers all rules in the different CERT C sections listed on the CERT C wiki as of January 2020, with the exception of the API, CON, POS, and WIN sections, which are not applicable to IAR Systems products, yielding a total of 90 covered rules.

Link analysis trace information

The link analysis messages now display trace information when relevant. For checks looking for conflicting symbol names, all conflicting declarations are now listed in the trace information instead of each pair of conflicts being described in a separate message. This might lead to fewer reported messages for the same number of found issues.