php-in-php: drop always-on Type __compiler_getenv / __compiler_getenv_all ABI shells (ext/standard/basic_functions.c)

[PurHur]

Category

php-in-php · runtime-shrink (#1492, peer #32651 / #32287 / re-#32122)

Problem

Builtin\Type::register() still addFunctions empty always-on shells for __compiler_getenv and __compiler_getenv_all on every JIT/AOT module. Runtime owners already declare the same prototypes module-locally with getNamedFunction first:

• StringGetenv (__compiler_getenv) — GetenvLookupJitHelper / NestedJIT libc getenv(3)
• StringGetenvAll (__compiler_getenv_all) — EnvironMirrorRuntime

A leftover Type addFunction vs Runtime ABI drift mints getenv.1 with no body (Module.php:180 / ld undefined name.1) — the #31894 / #32122 class. Empty Type decls were also mistaken for completed bodies and left U __compiler_getenv at argv-driver link (#26756).

Path	Today	Target
getenv body	StringGetenv / JitEnv::getenv	unchanged
getenv_all body	StringGetenvAll / JitEnv::getenvAll	unchanged
Type.php	always-on empty shells	drop both rows
NestedJIT consumers	already ensureLinked before lookup	keep + cite this issue
User-script getenv()/putenv()	GetenvLookupJitHelper / PutenvJitHelper	unchanged

php-src reference

• php/php-src ext/standard/basic_functions.c — zif_getenv / zif_putenv

PHP implementation target

• lib/JIT/Builtin/Type.php — remove always-on __compiler_getenv / __compiler_getenv_all
• ext/standard/JitEnv.php — already StringGetenv::ensureLinked / StringGetenvAll::ensureLinked before lookup
• lib/JIT/Builtin/StringGetenv.php / StringGetenvAll.php — keep getNamedFunction-first owners

Repro

./script/docker-exec.sh -- bash -lc './script/aot-smoke.sh'
./script/docker-exec.sh -- bash -lc './script/cold-build-check.sh'

Done when

• Type.php does not addFunction/registerFunction __compiler_getenv or __compiler_getenv_all
• StringGetenv / StringGetenvAll still own the ABI (getNamedFunction first)
• aot-smoke.sh stays 8/8
• cold-build-check.sh ok
• No new runtime/*.c

[PurHur]

claim: php-runtime-migration — drop Type always-on __compiler_getenv / __compiler_getenv_all this run (peer #32651 / re-#32122)