GNU Toolchain for ARC Processors, 2023.03-rc1

This is the first release candidate of 2023.03 version of the GNU Toolchain for DesignWare ARC 600, ARC 700, EM, HS3x/4x, HS5x & HS6x processors. This is a maintenance release which brings incremental improvements for major toolchain components such as GCC, Binutils & GDB for ARC processors.

GNU Documentation can be found online here https://foss-for-synopsys-dwc-arc-processors.github.io/toolchain.

A list of useful how-to instructions can also be found on the GNU Toolchain for DesignWare ARC Processors Documentation wiki.

Toolchain and IDE Components Versions

• Binutils 2.40 with ARC patches
• GCC 12.2 with ARC patches
• GDB pre-14.1 with ARC patches
• newlib 4.3.0 with ARC patches
• uClibc-ng v1.0.43 with ARC patches
• glibc 2.37 with ARC patches

This release of GNU toolchain is supported by CGEN IPlib (TCF generator) version 1.0.53 and later.

New Features and Enhancements

• Binary distribution

  • Supported host operating systems: Windows 10 64-bit, Ubuntu 18.04.x, 20.04.x, CentOS/RHEL 7.x

• GCC

  • Sources used for the release are available here: https://github.com/foss-for-synopsys-dwc-arc-processors/gcc/releases/tag/arc-2023.03-rc1
  • Uses upstream 12.2 release, see release announcement https://gcc.gnu.org/pipermail/gcc-announce/2022/000174.html & complete list of changes https://gcc.gnu.org/gcc-12/changes.html
  • No major updates compared to the previous release.

• GDB

  • Sources used for the release are available here: https://github.com/foss-for-synopsys-dwc-arc-processors/binutils-gdb/releases/tag/arc-2023.03-rc1
  • Updated to the upstream sources of what eventually will become v14.1 release.
  • Fixes and improvements for all generations of ARC processors.

• Binutils

  • Sources used for the release are available here: https://github.com/foss-for-synopsys-dwc-arc-processors/binutils-gdb/releases/tag/arc-2023.03-rc1
  • Updated to the upstream 2.40 release.
  • Improved stability when linking (see #533, #524 & #523)
  • Added color output for disassembler.
  • Assembler: fix encoding for neg.f 0,Rb, see #531

• glibc

  • Sources used for the release are available here: https://github.com/foss-for-synopsys-dwc-arc-processors/glibc/releases/tag/arc-2023.03-rc1
  • Updated to the upstream 2.37 release. For more details see release announcement https://sourceware.org/pipermail/libc-alpha/2023-February/145190.html & release notes https://sourceware.org/glibc/wiki/Release/2.37.
  • Support for ARCv3 processors is implemented with changes on top of the upstream release.

• uClibc-ng

  • Sources used for the release are avaialble here: https://github.com/foss-for-synopsys-dwc-arc-processors/uClibc/tree/arc-2023.03
  • Updated to the latest upstream version v1.0.43, see https://cgit.uclibc-ng.org/cgi/cgit/uclibc-ng.git/tag/?h=v1.0.43
  • ARCv3 32-bit processors support is now in the upstream project, with only a few minor changes applied on top of the upstream release.

• Newlib

  • Sources used for the release are avaialble here: https://github.com/foss-for-synopsys-dwc-arc-processors/newlib/releases/tag/arc-2023.03-rc1
  • Updated to the upstream 4.3.0 release with ARC patches applied on top of it.
  • Update spec files to work with libnano.
  • Added optimized string routines for ARC64.

Also, here is the list of GitHub issues addressed in this release: https://github.com/foss-for-synopsys-dwc-arc-processors/toolchain/issues?q=is%3Aissue+milestone%3A2023.03+is%3Aclosed
Note, though, this list only contains issues filed against ARC GNU toolchain. Bugs and enhancements made in upstream open-source projects of each toolchain component could be found inthe corresponding bug-tracking system.

Known issues

1. CenOS 6.x hosts are not supported any longer for both running prebuilt tools as well as for building tools, see #202.

2. GDB compilation may intermittently fail due to unwanted regenerating intl/plural.c, see #212.

3. [Jira P10019563-38842] Ashling Opella-XD drivers of version 1.2.6 and above to work with ARC GNU IDE required to run the Ashling GDB server separately and select "Connect to a running GDB server" in the Debug Launch.

   To run the Ashling GDB server use the following from a command prompt:

   C:\AshlingOpellaXDforARC> ash-arc-gdb-server.exe --device arc-em
   

   Other supported devices are arc-hs, arc-600 and arc-700.

   See section "3.2 Configuring the Ashling GDB Server" in the Ashling Opella-XD ARC User manual for more details.

4. Newlib's libgloss doesn't support RF16 configuration of ARC cores when building for nSIM with "GNU Hostlink", see #231. But with use of "MetaWare Hostlink" RF16 configuration might be used now, see https://github.com/foss-for-synopsys-dwc-arc-processors/newlib/blob/arc-2021.03/libgloss/arc/readme-hostlink.md for more details.

5. Non-multilib toolchain built for ARC EM doesn't contain libdw_uart.a for EMSK, see #262

6. macOS cross-toolchains are not being distributed in this release

Please report any problems by filing an Issue in GitHub here.

	Linux x86_64	Windows x86_64	Linux ARC HS	macOS x86_64
Baremetal	Little endian \ Big endian
Linux/uClibc ARC700	Little endian \ Big endian
Linux/uClibc ARC HS	Little endian \ Big endian
Linux/glibc ARC HS	Little endian \ Big endian		Little endian
IDE	Download	Download
Baremetal ARCv3	Little endian
Linux/glibc ARC HS68	Little endian		Little endian
Linux/uClibc ARC HS58	Little endian		Little endian

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