xPack GNU Arm Embedded GCC v8.3.1-1.3 released
Download
The binary files are available from GitHub Releases.
Install
The full details of installing the xPack GNU Arm Embedded GCC on various platforms are presented in the separate Install page.
Easy install
The easiest way to install GNU Arm Embedded GCC is with
xpm
by using the binary xPack, available as
@xpack-dev-tools/arm-none-eabi-gcc
from the npmjs.com
registry.
To install the latest version available, use:
xpm install --global @xpack-dev-tools/arm-none-eabi-gcc@latest --verbose
To install this specific version, use:
xpm install --global @xpack-dev-tools/arm-none-eabi-gcc@8.3.1-1.3.1
Compliance
This release follows the official
GNU Arm Embedded Toolchain
8-2019-q3-update release from July 10, 2019 and it is based on the
gcc-arm-none-eabi-8-2019-q3-update-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
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/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
- [#4]
Due to a bug in the build scripts, the Windows
gdb-py
had a hard-wired dependency to Python 2.7.13 and failed to start on other versions; fixed; - [#3]
Due to a bug in the build scripts, the macOS
gdb-py
had a wrong dependency and failed to start; fixed; - [#2]
Due to a bug in the build scripts, the Windows binaries included two
copies of the
docs
folder, one in root and one in theshare
folder; the script was fixed and now there is only one copy inshare/docs
. - [#1]
Due to an omission in the build scripts, the content of the
libgcov
library was mostly empty; the script was fixed and now the library has the expected content.
Changes
There should be no functional changes.
lib/bdf-plugins
To improve LTO support, the lib/bdf-plugins
folder was added, with
a link to the liblto_plugin.so
library (a file copy on Windows).
This allows the use of traditional program names, like arm-none-eabi-ar
instead of the new arm-none-eabi-gcc-ar
, without getting errors like:
arm-none-eabi-ar -r "libarm-static-lib.a" ./lib.o
arm-none-eabi-ar: creating libarm-static-lib.a
arm-none-eabi-ar: ./lib.o: plugin needed to handle lto object <---
The issue was reported to Arm as bug 1838049.
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)')"
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.
- GNU/Linux: all binaries were built with GCC 7.4, running in a CentOS 6 Docker container
- Windows: all binaries were built with mingw-w64 GCC 7.4, running in a CentOS 6 Docker container
- 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:
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xpack-arm-none-eabi-gcc-8.3.1-1.3-darwin-x64.tgz
cf033653934df5b5cf26f8d23415e6593120a4a2bb23f9227f190e5648b668b3
xpack-arm-none-eabi-gcc-8.3.1-1.3-linux-x32.tgz
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xpack-arm-none-eabi-gcc-8.3.1-1.3-linux-x64.tgz
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xpack-arm-none-eabi-gcc-8.3.1-1.3-win32-x32.zip
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xpack-arm-none-eabi-gcc-8.3.1-1.3-win32-x64.zip
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