Self-host M2: spine shims + RuntimeInitVmContext (#1056, #2126) - #2131
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…2126) Promote yay-php8-compat and llvm-env/macro_functions spine substitutes so deferred native-link paths shrink from 5 to 2 (bin/vm.php, AOT Linker). Wire ErrorReporter and ScriptStack in native Runtime::initVmContext emit for M3 compile-driver spine (#1768). Closes #2126 Co-authored-by: Cursor <cursoragent@cursor.com>
This was referenced May 25, 2026
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Summary
src/yay-php8-compat.phpplus spine-safe substitutes forsrc/llvm-env.phpandsrc/macro_functions.php(no FFI/Yay macro link under LLVM 9 self-host).$spineNativeLinkDeferredfrom 5 → 2 (bin/vm.php,lib/AOT/Linker.phponly).RuntimeInitVmContext::emitto allocate/wireVM\Context.errorsandscriptStackalongsideruntime/vmContext(M3 compile-driver batch toward Self-host M3: compile-driver real lowering symbol batch tracker #1768).Test plan
php script/check-selfhost-spine-coverage-sync.phpphp script/check-selfhost-spine-count-sync.php(609/611)BOOTSTRAP_LIB_SPINE_SMOKE=1 make bootstrap-selfhost-lib-spine-smokeinphp-compiler:22.04-devRuntimeInitVmContextTest,SelfhostSpineSubstitutesTest,BootstrapSelfhostBundleTestCloses #2126
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