Release_Notes_9.3.1.2

Table of Contents

Release Notes for MSP430-GCC

Date: 2021-07-23

New features / changes:

• Component versions:
  • GCC 9.3.1.11
  • GDB 9.1
  • binutils 2.34
  • Newlib 2.4.0
  • MSPDebugStack 3.15.1.001
  • MSP430 header and support files 1.212
  • MSP430 GDB Agent 8.0.809.0
• Updates to GCC compiler
  • Fixed use of the “persistent” attribute always being reported invalid for C++ programs.
  • Fixed “location” attribute still being applied when misused.
  • Fixed prologue and epilogue of __mspabi_mpyll hardware multiply library function for f5series and 32bit hwmult devices not saving/restoring the full contents of some general purpose registers.
  • Fixed errors when using the C++ numeric_limits class template with __int20 in constant expressions.
  • Added -muse-430x-for-mem option to force the compiler to generate 430X instructions when addressing memory operands.
  • Updated hard-coded MSP430 MCU data to v1.210 of the MSP430-GCC Support Files.
• Updates to Binutils
  • Fixed incorrect linker shuffling of “.either” sections when an output section description from the linker script has no assignment expressions in it.
  • Fixed objdump “section size is larger than file size” error when trying to disassemble programs with large .bss sections.
  • Fixed the linker creating empty ELF segments in executable files containing empty .bss sections.
• Updates to Newlib (C Library)
  • Homogenized upper and lower memory regions of simulator linker script. -msim-rom-model can be used to select the old simulator linker script for -mlarge, which followed the ROM program model, where read/write data is initialized at run time instead of load time.
• Update to GDB
  • The simulator executable (msp430-elf-run) now detects and reports stack overflow.
• Updates to MSP430 header files
  • New device support:
    • None.
  • New features / changes:
    • None.
  • Bug fixes:
    • Fix lowmem definition in linker files.
• Updates to MSPDebugStack
  • New device support:
    • No changes.
  • New features / changes:
    • No changes.
  • Bug fixes:
    • No changes.
  • Known Limitations:
    • GIE flag gets cleared out when erasing or writing Flash memory in case of errata handling FLASH31.
• Updates to MSP430 GDB Agent
  • No changes.
• Other
  • Updated README-apply-patches.sh to handle the new GCC release tag naming convention.

Known Issues:

- The GDB Agent is not able to connect to MSP430L092 target devices.
- The GDB Agent is not able to connect to RF430FRL15xH target devices.