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Merged
tannevaled merged 1 commit into from
Nov 1, 2026
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Document the plan9 port #43

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19 changes: 14 additions & 5 deletions content/en/conformance.md
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Expand Up @@ -74,15 +74,24 @@ On top of the oracle, the interpreter holds a hard CI gate:
IO's position is a Go `int`, so on 32-bit targets it stops at 2**31-1;
- a **compile on every target** job (since v0.8.3) runs `go vet`, default and
`rbgo_core` builds, for every GOOS/GOARCH pair `go tool dist list` names
except plan9: aix, android, darwin, dragonfly, freebsd, illumos, ios, js,
linux (all 13 arches), netbsd, openbsd, solaris, wasip1, windows. It only
compiles. Where modernc.org/sqlite has no port (linux/mips*, linux/ppc64, AIX,
(plan9 since v0.8.5): aix, android, darwin, dragonfly, freebsd, illumos, ios,
js, linux (all 13 arches), netbsd, openbsd, plan9 (386, amd64, arm), solaris,
wasip1, windows. It only compiles. Where modernc.org/sqlite has no port (linux/mips*, linux/ppc64, AIX,
Solaris, illumos, DragonFly, most NetBSD and OpenBSD arches), the store gems
(SQLite3, Sequel, ActiveRecord's adapter, Bolt, Bleve, Etcd, Confd) load but
raise `NotImplementedError` on use; Errno names and `Process::RLIMIT_*`
constants a system lacks follow MRI (a `NOERROR` constant, or no constant).
plan9 does not compile: its `syscall` package has no errno numbers and no
`Kill`, `Flock`, `Getrlimit` or `Stat_t`;
plan9 (since v0.8.5) compiles and vets but **nothing runs there in CI**, as no
lane has a Plan 9 kernel. Its `syscall` package has no errno numbers and no
`Kill`, `Flock`, `Getrlimit`, `Umask` or `Stat_t`, so: `Errno::Exxx::Errno`
carries the Linux number and a failed call's error string is mapped to a class
by the Go standard library's rules (an unrecognised string raises a plain
`SystemCallError`); `Process.kill` writes a note to `/proc/<pid>/note`;
`Process.getrlimit` and the other POSIX process calls, and `File#flock`, raise
`NotImplementedError`; `File::Stat` is built from the Plan 9 `Dir`; and the
NATS, Kafka and Parquet gems (whose drivers do not build there) load but raise
`NotImplementedError` on use. The string mapping is pure Go and unit-tested on
every platform;
- a **`wasip1/wasm`** lane builds the interpreter and runs it under wazero;
- with **every feature differential-tested against MRI 4.0.5**.

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