windows: integrate OS and standard-library support (R6, depends on xgo-dev/llgo#2405) - #188

Draft

cpunion wants to merge 113 commits into

codex/windows-r5-fault-seh-20260825from

codex/windows-r6-stdlib-20260826

Commits on Aug 25, 2026

ci: exercise the Windows standard library runtime
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4f4f646
os, syscall: enhance Windows OS system integration and smoke tests
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fbe9627
style: format runtime/_test/windowsstdlib/main.go with gofmt
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runtime: support Windows OS bridges
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test: exercise Windows OS integration
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runtime: reject Windows netpoll until IOCP support
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test: verify Windows process exit
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test: exercise Windows overlapped file fallback
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test: cover Windows llgo test execution
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runtime: link Windows testing support hooks
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ssa: retain Windows zero-sized global aliases
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test: make stdlib checks Windows-aware
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test: exercise Windows-specific stdlib behavior
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test: match Windows console signal semantics
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runtime: provide Windows system directory hook
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runtime: deliver Windows console signals
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runtime: detach Windows signals from libuv
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runtime: support Windows IOCP polling
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test: execute Windows socket and process coverage
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test: exercise Windows account lookup semantics
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test: require Windows symlink compatibility
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test: enforce Windows os compatibility
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test: cover Windows standard library symbols
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test: model Windows stdlib availability
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ci: check Windows standard library coverage
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test: run goroot helpers on Windows
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test: monitor goroot resources on Windows
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test: ignore Go helper coverage diagnostics
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runtime: reject regular files from Linux poller
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ci: exercise llgo test on Windows
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windows: canonicalize runtime source paths
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e217dda
runtime: honor cleanup cancellation
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runtime: keep cleanup handles pointer-free
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test: reuse a configured llgo compiler
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test: use executable suffix for print probes
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runtime: preserve LF in Windows builtin output
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test/goroot: derive GOPATH link from module path
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runtime: avoid allocations in platform print backend
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ci: normalize Windows traceback paths
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runtime: keep non-Windows byte printing inline
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runtime: keep non-Windows string printing inline
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build: preserve explicit executable output names
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test/goroot: isolate single-file run sources
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test: cover exact Windows executable output names
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test/goroot: accept equivalent frontend diagnostics
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runtime: avoid cleanup finalizer lock reentrancy
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runtime: keep proc pin hooks in the core runtime
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runtime: expose C errno on Windows
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runtime: support Windows CPU profiling
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ci: cover Windows cgo and CPU profiles
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runtime: guard Windows CPU profile frame walks
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runtime: retain the Windows os args bridge
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runtime: report live goroutine contexts
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test: tolerate passing GOROOT expectations
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runtime: use address waits for Windows semaphores
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test: record Windows GOROOT runtime expectations
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test: run Windows runtime tests from discoverable package
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runtime: make Windows process exit race-safe
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test: tolerate delayed AfterFunc scheduling
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build: drop unused Windows test main before COFF linking
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test: avoid scheduler-sensitive context deadline bound
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runtime: separate Windows random streams by M
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runtime: retain goroutine startup roots through entry calls
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test: cover Windows network polling
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test: make explicit environment fixtures portable
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runtime: honor Universal CRT stdio semantics
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cl: cover Windows LLVM IR generation
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test: share closure ABI checks across hosts
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test: cover Windows host ABI in lit checks
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test: normalize Windows golden newlines
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build: preserve source patch newline style
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build: defer Windows shared runtime initialization
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build: scope Windows C export wrappers to main
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ci: preserve export header line endings
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test: complete native Windows fixtures
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test: make Windows checks deterministic
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test(std): give NewFile sole descriptor ownership
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runtime: align Windows hosted semantics
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runtime: align Windows polling and signal semantics
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runtime: limit the Windows sleep bridge to 386
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runtime: preserve Windows close signal cleanup
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test: make host fixtures portable on Windows
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test: cover amd64 float conversions on Windows
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runtime: link Windows address-wait imports
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test: accept split concurrent select output
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test: parse coalesced select output tokens
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test: use the current runtime module path on Windows
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cabi: preserve Windows COMDAT during ABI lowering
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cabi: lower Windows void aggregate results safely
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build: probe cgo with the configured target compiler
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build: parse cgo probes as C
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runtime: finish sync backend migration in Windows support
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runtime: support timed Windows condition waits
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test: keep Windows setjmp checks on UCRT stderr
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test: keep embedded target spelling within R6 scope
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test: deduplicate Windows runtime host semantics
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test: locate Windows Go toolchains by executable name
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test: cover directory-handle chdir restoration
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test: externally link Windows ARM64 cgo baselines
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build: reserve hosted stack on 64-bit Windows
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test: classify Windows GOROOT compatibility limits
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test: preserve malformed GOROOT diagnostics during cgo probing
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test: classify platform-independent GOROOT exclusions
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internal/abi: lower oversized aggregate copies
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ssa: lower large array comparisons to runtime helpers
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build: bind Plan 9 DATA globals before optimization
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Commits on Aug 26, 2026

plan9asm: use compiler symbol path for main packages
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ssa: use fat map lookup for large elements
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test: cover inline assembly on windows/386
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windows: address R6 review feedback
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windows: harden R6 runtime review findings
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ddff712
runtime: preserve portable Windows G check
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03d99ce
test: cover Windows C export validation
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