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xPack GNU Arm Embedded GCC v9.2.1-1.1 released

· 4 min read
Liviu Ionescu (ilg)
Liviu Ionescu (ilg)

Version 9.2.1-1.1 is a new release of xPack GNU Arm Embedded GCC, following Arm release from November 06, 2019 (version 9-2019-q4-major).

Download​

The binary files are available from GitHub Releases.

Install​

The easiest way to install this specific version, is by using xpm:

xpm install @xpack-dev-tools/arm-none-eabi-gcc@9.2.1-1.1.1 -verbose

The full details of installing the xPack GNU Arm Embedded GCC on various platforms can be found in the Install Guide.

Compliance​

This release follows the official GNU Arm Embedded Toolchain 9-2019-q4-major release from November 06, 2019 and it is based on the gcc-arm-none-eabi-9-2019-q4-major-src.tar.bz2 source invariant.

For more details see the original Arm release text files:

  • distro-info/arm-readme.txt
  • distro-info/arm-release.txt
note

Compared to the Arm distribution, the Aarch64 binaries are not yet available.

Supported libraries​

The supported libraries are:

$ arm-none-eabi-gcc -print-multi-lib
.;
arm/v5te/softfp;@marm@march=armv5te+fp@mfloat-abi=softfp
arm/v5te/hard;@marm@march=armv5te+fp@mfloat-abi=hard
thumb/nofp;@mthumb@mfloat-abi=soft
thumb/v7/nofp;@mthumb@march=armv7@mfloat-abi=soft
thumb/v7+fp/softfp;@mthumb@march=armv7+fp@mfloat-abi=softfp
thumb/v7+fp/hard;@mthumb@march=armv7+fp@mfloat-abi=hard
thumb/v7-r+fp.sp/softfp;@mthumb@march=armv7-r+fp.sp@mfloat-abi=softfp
thumb/v7-r+fp.sp/hard;@mthumb@march=armv7-r+fp.sp@mfloat-abi=hard
thumb/v6-m/nofp;@mthumb@march=armv6s-m@mfloat-abi=soft
thumb/v7-m/nofp;@mthumb@march=armv7-m@mfloat-abi=soft
thumb/v7e-m/nofp;@mthumb@march=armv7e-m@mfloat-abi=soft
thumb/v7e-m+fp/softfp;@mthumb@march=armv7e-m+fp@mfloat-abi=softfp
thumb/v7e-m+fp/hard;@mthumb@march=armv7e-m+fp@mfloat-abi=hard
thumb/v7e-m+dp/softfp;@mthumb@march=armv7e-m+fp.dp@mfloat-abi=softfp
thumb/v7e-m+dp/hard;@mthumb@march=armv7e-m+fp.dp@mfloat-abi=hard
thumb/v8-m.base/nofp;@mthumb@march=armv8-m.base@mfloat-abi=soft
thumb/v8-m.main/nofp;@mthumb@march=armv8-m.main@mfloat-abi=soft
thumb/v8-m.main+fp/softfp;@mthumb@march=armv8-m.main+fp@mfloat-abi=softfp
thumb/v8-m.main+fp/hard;@mthumb@march=armv8-m.main+fp@mfloat-abi=hard
thumb/v8-m.main+dp/softfp;@mthumb@march=armv8-m.main+fp.dp@mfloat-abi=softfp
thumb/v8-m.main+dp/hard;@mthumb@march=armv8-m.main+fp.dp@mfloat-abi=hard

Bug fixes​

  • none,

Changes​

There should be no functional changes.

Compared to previous releases, the new archives are created with a single folder named xpack-arm-none-eabi-gcc-9.2.1-1.1 instead of the hierarchical xPacks/arm-none-eabi-gcc/9.2.1-1.1. This internal folder name is used consistently on all platforms. The archive extension was changed to .tar.gz.

With these changes, the archives can now be used directly in other development environments (like Arduino), without having to repack them.

Python 3​

Partial experimental support for Python 3 was added to GDB for GNU/Linux and macOS; not yet available on Windows (24469).

Known problems​

  • [#5] the arm-none-eabi-gdb-py fails to start on Ubuntu (and possibly other Debian) systems, it fails with a message like:
$ PYTHONHOME=/usr PYTHONPATH=/usr/lib/python2.7 arm-none-eabi-gdb-py --version
Traceback (most recent call last):
  File "/usr/lib/python2.7/site.py", line 554, in <module>
    main()
  File "/usr/lib/python2.7/site.py", line 536, in main
    known_paths = addusersitepackages(known_paths)
  File "/usr/lib/python2.7/site.py", line 272, in addusersitepackages
    user_site = getusersitepackages()
  File "/usr/lib/python2.7/site.py", line 247, in getusersitepackages
    user_base = getuserbase() # this will also set USER_BASE
  File "/usr/lib/python2.7/site.py", line 237, in getuserbase
    USER_BASE = get_config_var('userbase')
  File "/usr/lib/python2.7/sysconfig.py", line 587, in get_config_var
    return get_config_vars().get(name)
  File "/usr/lib/python2.7/sysconfig.py", line 533, in get_config_vars
    _init_posix(_CONFIG_VARS)
  File "/usr/lib/python2.7/sysconfig.py", line 417, in _init_posix
    from _sysconfigdata import build_time_vars
  File "/usr/lib/python2.7/_sysconfigdata.py", line 6, in <module>
    from _sysconfigdata_nd import *
ImportError: No module named _sysconfigdata_nd

The problem is caused by gdb-py not being able to locate the Python system libraries, split into multiple packages and installed in multiple folders.

The workaround is to pass the Python environment to gdb-py:

PYTHONPATH="$(python -c 'import os; import sys; print(os.pathsep.join(sys.path))')" \
PYTHONHOME="$(python -c 'import sys; print(sys.prefix)')"
  • C++ exceptions in the non-nano libraries are not caught; fixed in 9.3.1-1.2.

Documentation​

The original PDF documentation is available in the share/doc folder.

Supported platforms​

Binaries for Windows, macOS and GNU/Linux are provided.

The binaries were built using the xPack Build Box (XBB), a set of build environments based on slightly older distributions, that should be compatible with most recent systems.

  • x86/x64 GNU/Linux: all binaries were built with GCC 7.4, running in a CentOS 6 Docker container
  • x86/x64 Windows: all binaries were built with mingw-w64 GCC 7.4, running in a CentOS 6 Docker container
  • x64 macOS: most binaries were built with GCC 7.4, running in a separate folder on macOS 10.10.5; GDB cannot be compiled with GCC, so Apple clang was used.

Tests​

The binaries were testes on Windows 10 Pro 32/64-bit, Ubuntu 18 LTS 64-bit, Xubuntu 18 LTS 32-bit and macOS 10.13.

The tests consist in building and debugging some simple Eclipse projects available in the project.

Since the source code used for GCC is identical to the one used by Arm, the long and complex tests performed by Arm to validate their release were not executed again.

Checksums​

The SHA-256 hashes for the files are:

6ff68117083624273c56244cf4242989a65069b376a9727ec4a230be824340f3
xpack-arm-none-eabi-gcc-9.2.1-1.1-darwin-x64.tar.gz

e9f4b5f3ebe7e4391e2423e4106493d7cfcdee9eee4a1f0766f1c23662093a49
xpack-arm-none-eabi-gcc-9.2.1-1.1-linux-x32.tar.gz

bbde117b97f229dfe63721c0323c3da6839e83cf302c8f4ff25e0f36ecf7a428
xpack-arm-none-eabi-gcc-9.2.1-1.1-linux-x64.tar.gz

d13aaff4caae6e5f1b871d50accc1759c4f5750574dbd4d6f6e3017c33f39dc6
xpack-arm-none-eabi-gcc-9.2.1-1.1-win32-x32.zip

923bf50198cb155361a95fcac8804d12acd64e963a89f352c69fe24bf54ff0ef
xpack-arm-none-eabi-gcc-9.2.1-1.1-win32-x64.zip

Download analytics​

Credit to Shields IO for the badges and to Somsubhra/github-release-stats for the individual file counters.