[GR-76653][GR-76899] Add a Windows native os backend.#1032

Merged

graalvmbot merged 38 commits into

tim/graalpython-asy-gr-76653

Jul 21, 2026

Commits on Jul 21, 2026

NtModuleBuiltins are not needed on Linux

timfel
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fangerer
committed
Add initial Windows native posix backend.

timfel
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fangerer
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Extend _overlapped module with native socket and pipe operations.

timfel
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fangerer
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Support Windows subprocess handle lists arguments

timfel
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fangerer
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Implement Windows native mmap support.

timfel
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fangerer
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Use Windows subprocess path on Windows when native backend is active

timfel
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fangerer
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Fix multiprocessing on Windows with the native os backend

timfel
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fangerer
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Implement Windows native SemLock emulation as on CPython.

timfel
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fangerer
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Fix stdout newlines on windows

timfel
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fangerer
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Clear last windows error when mmap succeeds

timfel
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fangerer
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Try to fix the bytecode reparsing tests on windows

timfel
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fangerer
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Avoid Java-level Windows last-error reset for mmap

timfel
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fangerer
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Match multiline bytecode reparse failures

timfel
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fangerer
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Use stable timestamp in native tuple utime test

timfel
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fangerer
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Clear Windows last error after mmap at boundary

timfel
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fangerer
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Capture errno, GetLastError, and WSAGetLastError on Windows
fangerer
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Introduce enums for WinAPIError and WSAError
fangerer
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Fix Windows last error handling for named mmap
fangerer
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Fix Windows native stat timestamps
fangerer
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Fix: capture Windows errors in call_fstatat
fangerer
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Do not expose AF_UNIX on Windows
fangerer
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Use wide native paths on Windows
fangerer
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Match CPython Windows stat fallback semantics
fangerer
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Respect logical input length in native LZMA
fangerer
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Untag failing LZMA test on win32-amd64
fangerer
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Untag executable test on win32-amd64
fangerer
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Stabilize deleted bytecode reparse test
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Preserve Windows socket mappings in dup2
fangerer
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Fix Windows select fd_set overflow
fangerer
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Accept Windows mmap tagname positional argument
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Document Windows-specific mmap and posix behavior
fangerer
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Preserve empty sys.executable path
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Document Windows native backend
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Define both venv launcher argument variables
fangerer
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Use readable buffers for multiprocessing send
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Use clinic conversions for multiprocessing sockets
fangerer
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Report unsupported OS handle conversion
fangerer
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Document managed CloseHandle fallback
fangerer
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