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[Build] Add support for static-linking to the SDK system.

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Add some additional SDK variables that let us mark an SDK as
supporting static linking, and/or supporting *only* static
linking.

rdar://123503009
This commit is contained in:
Alastair Houghton
2024-02-23 12:43:10 +00:00
parent a2a208379d
commit 4bfa31afb7
1 changed files with 35 additions and 14 deletions
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49
cmake/modules/SwiftConfigureSDK.cmake
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@@ -15,6 +15,9 @@ function(_report_sdk prefix)
message(STATUS " Swift Standard Library Path: ${SWIFT_SDK_${prefix}_LIB_SUBDIR}")
message(STATUS " Threading Package: ${SWIFT_SDK_${prefix}_THREADING_PACKAGE}")
message(STATUS " Static linking supported: ${SWIFT_SDK_${prefix}_STATIC_LINKING_SUPPORTED}")
message(STATUS " Static link only: ${SWIFT_SDK_${prefix}_STATIC_ONLY}")
if("${prefix}" STREQUAL "WINDOWS")
message(STATUS " UCRT Version: ${UCRTVersion}")
message(STATUS " UCRT SDK Path: ${UniversalCRTSdkDir}")
@@ -148,20 +151,23 @@ endfunction()
# This macro attempts to configure a given SDK. When successful, it
# defines a number of variables:
#
# SWIFT_SDK_${prefix}_NAME Display name for the SDK
# SWIFT_SDK_${prefix}_VERSION SDK version number (e.g., 10.9, 7.0)
# SWIFT_SDK_${prefix}_BUILD_NUMBER SDK build number (e.g., 14A389a)
# SWIFT_SDK_${prefix}_DEPLOYMENT_VERSION Deployment version (e.g., 10.9, 7.0)
# SWIFT_SDK_${prefix}_LIB_SUBDIR Library subdir for this SDK
# SWIFT_SDK_${prefix}_TRIPLE_NAME Triple name for this SDK
# SWIFT_SDK_${prefix}_OBJECT_FORMAT The object file format (e.g. MACHO)
# SWIFT_SDK_${prefix}_USE_ISYSROOT Whether to use -isysroot
# SWIFT_SDK_${prefix}_SHARED_LIBRARY_PREFIX Shared library prefix for this SDK (e.g. 'lib')
# SWIFT_SDK_${prefix}_SHARED_LIBRARY_SUFFIX Shared library suffix for this SDK (e.g. 'dylib')
# SWIFT_SDK_${prefix}_ARCHITECTURES Architectures (as a list)
# SWIFT_SDK_${prefix}_IS_SIMULATOR Whether this is a simulator target.
# SWIFT_SDK_${prefix}_ARCH_${ARCH}_TRIPLE Triple name
# SWIFT_SDK_${prefix}_ARCH_${ARCH}_MODULE Module triple name for this SDK
# SWIFT_SDK_${prefix}_NAME Display name for the SDK
# SWIFT_SDK_${prefix}_VERSION SDK version number (e.g., 10.9, 7.0)
# SWIFT_SDK_${prefix}_BUILD_NUMBER SDK build number (e.g., 14A389a)
# SWIFT_SDK_${prefix}_DEPLOYMENT_VERSION Deployment version (e.g., 10.9, 7.0)
# SWIFT_SDK_${prefix}_LIB_SUBDIR Library subdir for this SDK
# SWIFT_SDK_${prefix}_TRIPLE_NAME Triple name for this SDK
# SWIFT_SDK_${prefix}_OBJECT_FORMAT The object file format (e.g. MACHO)
# SWIFT_SDK_${prefix}_USE_ISYSROOT Whether to use -isysroot
# SWIFT_SDK_${prefix}_SHARED_LIBRARY_PREFIX Shared library prefix for this SDK (e.g. 'lib')
# SWIFT_SDK_${prefix}_SHARED_LIBRARY_SUFFIX Shared library suffix for this SDK (e.g. 'dylib')
# SWIFT_SDK_${prefix}_STATIC_LINKING_SUPPORTED Whether static linking is supported for this SDK
# SWIFT_SDK_${prefix}_STATIC_ONLY Whether to build *only* static libraries
# SWIFT_SDK_${prefix}_ARCHITECTURES Architectures (as a list)
# SWIFT_SDK_${prefix}_IS_SIMULATOR Whether this is a simulator target.
# SWIFT_SDK_${prefix}_ARCH_${ARCH}_TRIPLE Triple name
# SWIFT_SDK_${prefix}_ARCH_${ARCH}_MODULE Module triple name for this SDK
macro(configure_sdk_darwin
prefix name deployment_version xcrun_name
triple_name module_name architectures)
@@ -206,6 +212,8 @@ macro(configure_sdk_darwin
set(SWIFT_SDK_${prefix}_STATIC_LIBRARY_SUFFIX ".a")
set(SWIFT_SDK_${prefix}_IMPORT_LIBRARY_PREFIX "")
set(SWIFT_SDK_${prefix}_IMPORT_LIBRARY_SUFFIX "")
set(SWIFT_SDK_${prefix}_STATIC_LINKING_SUPPORTED FALSE)
set(SWIFT_SDK_${prefix}_STATIC_ONLY FALSE)
get_threading_package(${prefix} "darwin" SWIFT_SDK_${prefix}_THREADING_PACKAGE)
set(SWIFT_SDK_${prefix}_ARCHITECTURES ${architectures})
@@ -279,6 +287,7 @@ macro(configure_sdk_unix name architectures)
string(TOUPPER ${name} prefix)
string(TOLOWER ${name} platform)
string(REPLACE "_" "-" platform "${platform}")
set(SWIFT_SDK_${prefix}_NAME "${name}")
set(SWIFT_SDK_${prefix}_LIB_SUBDIR "${platform}")
@@ -310,6 +319,14 @@ macro(configure_sdk_unix name architectures)
endif()
set(SWIFT_SDK_${prefix}_USE_ISYSROOT FALSE)
# Static linking is suported on Linux and WASI
if("${prefix}" STREQUAL "LINUX"
OR "${prefix}" STREQUAL "WASI")
set(SWIFT_SDK_${prefix}_STATIC_LINKING_SUPPORTED TRUE)
else()
set(SWIFT_SDK_${prefix}_STATIC_LINKING_SUPPORTED FALSE)
endif()
# GCC on Linux is usually located under `/usr`.
# However, Ubuntu 20.04 ships with another GCC installation under `/`, which
# does not include libstdc++. Swift build scripts pass `--sysroot=/` to
@@ -456,6 +473,8 @@ macro(configure_sdk_windows name environment architectures)
set(SWIFT_SDK_${prefix}_STATIC_LIBRARY_SUFFIX ".lib")
set(SWIFT_SDK_${prefix}_IMPORT_LIBRARY_PREFIX "")
set(SWIFT_SDK_${prefix}_IMPORT_LIBRARY_SUFFIX ".lib")
set(SWIFT_SDK_${prefix}_STATIC_LINKING_SUPPORTED FALSE)
set(SWIFT_SDK_${prefix}_STATIC_ONLY FALSE)
get_threading_package(${prefix} "win32" SWIFT_SDK_${prefix}_THREADING_PACKAGE)
foreach(arch ${architectures})
@@ -523,6 +542,8 @@ function(configure_target_variant prefix name sdk build_config lib_subdir)
set(SWIFT_VARIANT_${prefix}_STATIC_LIBRARY_SUFFIX ${SWIFT_SDK_${sdk}_STATIC_LIBRARY_SUFFIX})
set(SWIFT_VARIANT_${prefix}_IMPORT_LIBRARY_PREFIX ${SWIFT_SDK_${sdk}_IMPORT_LIBRARY_PREFIX})
set(SWIFT_VARIANT_${prefix}_IMPORT_LIBRARY_SUFFIX ${SWIFT_SDK_${sdk}_IMPORT_LIBRARY_SUFFIX})
set(SWIFT_VARIANT_${prefix}_STATIC_LINKING_SUPPORTED ${SWIFT_SDK_${sdk}_STATIC_LINKING_SUPPORTED})
set(SWIFT_VARIANT_${prefix}_STATIC_ONLY ${SWIFT_SDK_${sdk}_STATIC_ONLY})
get_threading_package(${prefix} ${SWIFT_SDK_${sdk}_THREADING_PACKAGE} SWIFT_VARIANT_${prefix}_THREADING_PACKAGE)
endfunction()