gccaarch64linuxgnu

gccaarch64linuxgnu is a label used to refer to a GNU GCC-based cross-compiler toolchain configured to generate code for the AArch64 architecture running the Linux operating system with a GNU user-space environment. It represents the combination of the GCC compiler suite with a target triplet that identifies the build as a cross-compilation for ARM 64-bit Linux systems.

The target typically corresponds to aarch64-linux-gnu, indicating 64-bit ARM (AArch64) as the architecture and Linux as the host operating system for the target, with a GNU userland such as glibc or an alternative C library like musl. A cross-compiler built under this configuration is used on a non-AArch64 host to produce executables and libraries that run on AArch64 Linux systems. The toolchain usually includes the C and C++ compilers (and possibly other languages supported by GCC), as well as assembling, linking, and the necessary runtime libraries for the target.

In practice, gccaarch64linuxgnu is found in cross-compilation workflows and package ecosystems where developers need to build software for ARM 64-bit Linux from a different host architecture. Common workflows involve configuring a cross-toolchain with a sysroot that contains the target libraries, setting environment variables such as CC and CXX to point to the cross-compiled binaries, and invoking standard build systems (make, CMake, Meson) with the appropriate target settings.

Overall, gccaarch64linuxgnu exemplifies a GCC-based cross-compiler setup that enables developing and packaging software for AArch64 Linux GNU environments from non-native hosts.