feat(userland): ported GCC to Stellux as a prebuilt package - #187
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An optimizing compiler on the target needs a static musl hosted gcc, which only builds cleanly through the musl targeting patch set that musl-cross-make maintains. The build runs pinned inside a container in two stages, a cross toolchain and then a static native rebuild of itself, with target patches applied only to the native stage since the first stage runs on the build host. Sources download from a mirror that outlasts the flaky primary and cache across builds, and each stage builds from a fresh clone so extraction sets consistent autotools timestamps.
The gcc driver, collect2, and every spawned stage go through libiberty's pex layer, which only knows fork, vfork, and posix_spawn, none of which exist on the target. A patch applied to the native stage only replaces child execution and waiting with proc_create, proc_set_handle, proc_start, and proc_wait, whose status word already matches the wait format. Children begin with just the standard descriptors, so descriptor cleanup logic reduces to installing the redirections.
Heavy tools such as a native compiler toolchain reached the image only by building them on every clone or placing them by hand, and nothing recorded which build of a tool a given kernel tree had been tested against. Packages are reproducible archives rooted at the filesystem root, published on a release, and named in a lock file that pins one release and a checksum per package and architecture, so the pins travel with the kernel sources they belong to and a plain image build stays lean.
Co-authored-by: Cursor <[email protected]>
Co-authored-by: Cursor <[email protected]>
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Summary
make image PACKAGES="gcc binutils"fetches, verifies, and stages them in seconds, while a plainmake imagestays lean and offline.Made with Cursor