Toolchain Strategy for Arm Server CPUs
summary
Hardware vendors must time toolchain work to upstream schedules: GCC has an annual cycle with a stage one freeze in November and a stage three freeze in January, binutils and glibc release twice a year, and distributions differ — Fedora/Ubuntu move fast while RHEL-style releases are multi‑year and backport conservatively. Practical rules: add the CPU flag early (even before any linker hacks), aim for the November/GCC freeze window, use developer toolsets because developer toolset carries newer GCC, and start enablement years before ship date.
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