Description

GNU 9.2 cross-toolchain for the A-profile processors

Features

• Based on GCC 9.2 (See https://gcc.gnu.org/gcc-9/changes.html for details).
• Supported targets on Windows(x86_64): AArch64 (bare-metal and Linux), AArch32 (bare-metal, Linux hard-float)
• Supported targets on Linux(x86_64): AArch64 (bare-metal, Linux, Linux big-endian), AArch32 (bare-metal, Linux hard-float)
• Supported targets on Linux(AArch64): AArch64 (bare-metal), AArch32 (bare-metal, Linux hard-float)

Changes since Arm release GCC 8.3-2019.03

• Additional AArch64 hosted cross toolchains for AArch64 (bare-metal) and AArch32 (bare-metal, Linux hard-float)
• Additional Windows hosted cross toolchains for AArch64 (Linux) and AArch32 (Linux hard-float) 
• Retired Linux(x86_64) toolchain for AArch64 (big-endian bare-metal) and AArch32 (Linux soft-float)
• Changed toolchain naming convention to match standard target triplet naming convention, with vendor name being none. For example, arm-eabi is arm-none-eabi.
• Fixed the Windows toolchain convention to correctly include mingw-w64 instead of mingw32

Content

This release includes the following items:

Host requirements

Known dependencies

• GDB's Python support requires Python compiled with UCS-4 support (built with --enable-unicode=ucs4) for Linux (x86_64) and Windows hosts
• GDB's Python support requires Python DLL dependencies for Windows host.
• Toolchains dedicated for Windows host require mingw-w64 library, a complete runtime environment for GCC.

The GNU Toolchains

Released files

Installation instructions

Extract XZ compressed release archive using TAR archiving utility:

$ tar -xJf <toolchain binary> -C <destination directory>

Example for Linux(x86_64) hosted for AArch64 Linux target

$ tar -xJf gcc-arm-9.2-2019.12-x86_64-aarch64-linux-gnu.tar.xz -C /path/to/destination/directory

Compute and check MD5 checksum of XZ compressed release archives using md5sum utility:

$ md5sum --check gcc-arm-9.2-2019.12-x86_64-aarch64-linux-gnu.tar.xz.asc gcc-arm-9.2-2019.12-x86_64-aarch64-linux-gnu.tar.xz: OK

The prebuilt binary bundles can be un-tarred and executed in place.  Unpack the Linux cross toolchain:

$ mkdir install-lnx
$ tar x -C install-lnx -f <filename>.tar.xz
$ PATH=`pwd`/install-lnx/aarch64/bin:$PATH 

How to build the toolchain from sources

You can build GNU cross-toolchain for the A-profile from sources using Linaro ABE (Advanced Build Environment) and provided ABE manifest files.

Below example shows how to build gcc-arm-aarch64-linux-gnu toolchain from sources using Linaro ABE build system.

Instructions

Clone ABE one of the URL below and checkout the stable branch (see Getting ABE):

$ git clone https://git.linaro.org/toolchain/abe.git

Create the build directory and change to it. Any name for the directory will work (see Building Toolchains With ABE):

$ mkdir build && cd build

Configure ABE (from the build directory):

$ ../abe/configure

And finally build toolchain (from the build directory):

$ ../abe/abe.sh --manifest gcc-arm-aarch64-linux-gnu-abe-manifest.txt --build all

Known issues

• None

Ask questions

For any questions, please use the Arm Communities forums.

Report bugs

Please report any bugs via the Linaro Bugzilla.