Replaces the dual MIT/Apache-2.0 licensing (and its GPL carve-out) with a
single GPL-2.0-only license for the whole repository: coherent with the
kernel patch series it exists to carry, the embedded-Linux norm, and the
stack's openness principle — anyone shipping products on this SDK publishes
their changes. GPL-2.0 (not 3) deliberately: the Installation-Information
clause of GPLv3 sits badly with WardenOS's signed A/B firmware chain.
LICENSE is now the canonical GPLv2 text; crate manifests updated;
inbound = outbound noted in the README.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018HUayid7W5w7jBdb9Rrj1K
benches/sim_bench.rs (harness=false, zero deps): fixed-iteration ns/op timing for
hpmcu_tick, cru_poll, modbus_read_holding, rga_improcess, membus_poke_peek. Human
timings to stdout, one JSON trend line per bench to stderr for CI capture. New CI
`bench` job smoke-runs them. Regression-vs-history gating is future work.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017wB8KB3MMQztRDXCMCkPrf
New from-scratch SDK for WardenOS (RV1106). First substance: the hardware
simulator's core — a MemBus register/SRAM seam (one trait, real /dev/mem backend
on device + in-memory SimBus on host) and a faithful port of the HPMCU watchdog
firmware (hpmcu/watchdog/main.c) as HpmcuSim, with 8 tests validating boot-grace
fire, heartbeat-timeout, disarm stand-down, and the flared arm-within-grace safety
property (no boot-loop) — all off-device, in a virtual clock, in <1ms.
This closes the gap the Explore map flagged: flared's devmem.rs/hpmcu.rs are the
only register-touching modules with zero tests. README lays out the SDK vision
(modern kernel, tiered driver MC/DC, proper RGA/HPMCU/NPU simulator, own repo).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017wB8KB3MMQztRDXCMCkPrf
