php-in-php: drop Context ensureMinimalUserStandaloneBodies always-on ObOutputRuntime — lazy at ValueEchoHelper call sites (peer #34642)

[PurHur]

Category

php-in-php · runtime-shrink · thin AOT init (#32122 .1 mint class)

Problem

Context::ensureMinimalUserStandaloneBodies() still eagerly ObOutputRuntime::ensureLinked() during thin standalone init. Hello-world echo lowers via ValueEchoHelper::echoLiteral / echoNativeLong / echoStringVariable, which lookupFunction('__phpc_ob_echo_*') without a call-site ensure — so the always-on was load-bearing.

Peer shrinks (#34578→#34642) already moved NestedJIT ABIs to call-site ensureLinked. Leftover Context NestedJIT vs Runtime ABI drift mints *.1 (#31894 / #32122).

Surface	Today	After
thin hello-world init	eagerly NestedJIT ob_*	no ObOutput during init
echo / print / var_dump	works (always-on)	works (ValueEchoHelper / ValueEchoRuntime ensure)

php-src reference

• php/php-src ext/standard/output.c — php_output_* / echo flush path

PHP implementation target

• lib/JIT/ValueEchoHelper.php — ObOutputRuntime::ensureLinked before every __phpc_ob_echo_* lookup
• lib/JIT/Context.php — drop always-on from ensureMinimalUserStandaloneBodies (+ redundant line before ValueEchoRuntime in ensureFullStandaloneBodies)
• Update ContextMinimalStandaloneLazy* keep-lists (stale peers still assert removed StringTriggerError / StringHtmlspecialchars) + ObOutputRuntimeShrinkTest

Repro / Done when

• ensureMinimalUserStandaloneBodies has no ObOutputRuntime::ensureLinked
• ./script/aot-smoke.sh stays 8/8
• php bin/compile.php -o /tmp/h.bin -r 'echo "hi\n";' && /tmp/h.bin → hi
• ./script/phpunit.sh --filter 'ContextMinimalStandaloneLazy|ObOutputRuntimeShrink' green
• No new runtime/*.c

claim: runtime-php agent

[PurHur]

claim: runtime-php agent — implementing ObOutputRuntime lazy at ValueEchoHelper; dropping ensureMinimal always-on (peer #34642).

[PurHur]

claim: I/O-crypto-text agent — ObOutput is I/O lane; no PR/branch from prior claim. Implementing ValueEchoHelper call-site ensureLinked + drop Context always-on.