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feat(windows): Add Windows ARM64 support (#26215)

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robobun
2026-01-22 04:22:45 -08:00
committed by GitHub
parent 1da41b7f91
commit 2a9980076d
33 changed files with 564 additions and 121 deletions
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25
cmake/Options.cmake
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@@ -4,6 +4,7 @@ endif()
optionx(BUN_LINK_ONLY BOOL "If only the linking step should be built" DEFAULT OFF)
optionx(BUN_CPP_ONLY BOOL "If only the C++ part of Bun should be built" DEFAULT OFF)
optionx(SKIP_CODEGEN BOOL "Skip JavaScript codegen (for Windows ARM64 debug)" DEFAULT OFF)
optionx(BUILDKITE BOOL "If Buildkite is enabled" DEFAULT OFF)
optionx(GITHUB_ACTIONS BOOL "If GitHub Actions is enabled" DEFAULT OFF)
@@ -49,7 +50,7 @@ else()
message(FATAL_ERROR "Unsupported operating system: ${CMAKE_SYSTEM_NAME}")
endif()
if(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64|arm64|arm")
if(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64|arm64|ARM64")
setx(ARCH "aarch64")
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "amd64|x86_64|x64|AMD64")
setx(ARCH "x64")
@@ -57,6 +58,18 @@ else()
message(FATAL_ERROR "Unsupported architecture: ${CMAKE_SYSTEM_PROCESSOR}")
endif()
# CMake 4.0+ policy CMP0197 controls how MSVC machine type flags are handled
# Setting to NEW prevents duplicate /machine: flags being added to linker commands
if(WIN32 AND ARCH STREQUAL "aarch64")
set(CMAKE_POLICY_DEFAULT_CMP0197 NEW)
set(CMAKE_MSVC_CMP0197 NEW)
# Set linker flags for exe/shared linking
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /machine:ARM64")
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /machine:ARM64")
set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} /machine:ARM64")
set(CMAKE_STATIC_LINKER_FLAGS "${CMAKE_STATIC_LINKER_FLAGS} /machine:ARM64")
endif()
# Windows Code Signing Option
if(WIN32)
optionx(ENABLE_WINDOWS_CODESIGNING BOOL "Enable Windows code signing with DigiCert KeyLocker" DEFAULT OFF)
@@ -199,6 +212,16 @@ optionx(USE_WEBKIT_ICU BOOL "Use the ICU libraries from WebKit" DEFAULT ${DEFAUL
optionx(ERROR_LIMIT STRING "Maximum number of errors to show when compiling C++ code" DEFAULT "100")
# TinyCC is used for FFI JIT compilation
# Disable on Windows ARM64 where it's not yet supported
if(WIN32 AND ARCH STREQUAL "aarch64")
set(DEFAULT_ENABLE_TINYCC OFF)
else()
set(DEFAULT_ENABLE_TINYCC ON)
endif()
optionx(ENABLE_TINYCC BOOL "Enable TinyCC for FFI JIT compilation" DEFAULT ${DEFAULT_ENABLE_TINYCC})
# This is not an `option` because setting this variable to OFF is experimental
# and unsupported. This replaces the `use_mimalloc` variable previously in
# bun.zig, and enables C++ code to also be aware of the option.