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Specify linker for Android armv7 target. #7777

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Merged
merged 2 commits into from
Mar 8, 2017
Merged

Specify linker for Android armv7 target. #7777

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443e761
Fixes on linker executable variables per target.
gonzalolarralde Feb 27, 2017
6890579
Specify linker for Android armv7 target.
gonzalolarralde Feb 27, 2017
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23 changes: 15 additions & 8 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -800,6 +800,21 @@ endif()
# Should we cross-compile the standard library for Android?
is_sdk_requested(ANDROID swift_build_android)
if(swift_build_android AND NOT "${SWIFT_ANDROID_NDK_PATH}" STREQUAL "")
# Get the prebuilt suffix to create the correct toolchain path when using the NDK
if("${CMAKE_SYSTEM_NAME}" STREQUAL "Darwin")
set(_swift_android_prebuilt_suffix "darwin-x86_64")
elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "Linux")
set(_swift_android_prebuilt_suffix "linux-x86_64")
endif()

set(SWIFT_ANDROID_PREBUILT_PATH
"${SWIFT_ANDROID_NDK_PATH}/toolchains/arm-linux-androideabi-${SWIFT_ANDROID_NDK_GCC_VERSION}/prebuilt/${_swift_android_prebuilt_suffix}")

# Resolve the correct linker based on the file name of CMAKE_LINKER (being 'ld' or 'ld.gold' the options)
get_filename_component(SWIFT_ANDROID_LINKER_NAME "${CMAKE_LINKER}" NAME)
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This is a bad idea in the long run. Since this enables building for Android, I think this is okay to commit, but we shouldn't use CMAKE_LINKER per se. I think that detecting the linker here should be separate since the valid linkers are ld, ld.gold, ld.lld, ld.ld64, link. At least two of those do not support ELF.

set(SWIFT_SDK_ANDROID_ARCH_armv7_LINKER
"${SWIFT_ANDROID_NDK_PATH}/toolchains/arm-linux-androideabi-${SWIFT_ANDROID_NDK_GCC_VERSION}/prebuilt/${_swift_android_prebuilt_suffix}/bin/arm-linux-androideabi-${SWIFT_ANDROID_LINKER_NAME}")

configure_sdk_unix(ANDROID "Android" "android" "android" "armv7" "armv7-none-linux-androideabi" "${SWIFT_ANDROID_SDK_PATH}")

if (NOT ("${CMAKE_SYSTEM_NAME}" STREQUAL "Darwin" OR "${CMAKE_SYSTEM_NAME}" STREQUAL "Linux"))
Expand All @@ -809,14 +824,6 @@ if(swift_build_android AND NOT "${SWIFT_ANDROID_NDK_PATH}" STREQUAL "")
set(SWIFT_PRIMARY_VARIANT_SDK_default "ANDROID")
set(SWIFT_PRIMARY_VARIANT_ARCH_default "armv7")
endif()

if("${CMAKE_SYSTEM_NAME}" STREQUAL "Darwin")
set(_swift_android_prebuilt_suffix "darwin-x86_64")
elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "Linux")
set(_swift_android_prebuilt_suffix "linux-x86_64")
endif()
set(SWIFT_ANDROID_PREBUILT_PATH
"${SWIFT_ANDROID_NDK_PATH}/toolchains/arm-linux-androideabi-${SWIFT_ANDROID_NDK_GCC_VERSION}/prebuilt/${_swift_android_prebuilt_suffix}")
endif()

# Should we cross-compile the standard library for Windows?
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2 changes: 1 addition & 1 deletion cmake/modules/SwiftConfigureSDK.cmake
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Expand Up @@ -23,7 +23,7 @@ function(_report_sdk prefix)
message(STATUS " Architectures: ${SWIFT_SDK_${prefix}_ARCHITECTURES}")
message(STATUS " Object Format: ${SWIFT_SDK_${prefix}_OBJECT_FORMAT}")
foreach(arch ${SWIFT_SDK_${prefix}_ARCHITECTURES})
if(${SWIFT_SDK_${prefix}_ARCH_${arch}_LINKER})
if(SWIFT_SDK_${prefix}_ARCH_${arch}_LINKER)
message(STATUS " Linker (${arch}): ${SWIFT_SDK_${prefix}_ARCH_${arch}_LINKER}")
else()
message(STATUS " Linker (${arch}): ${CMAKE_LINKER}")
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4 changes: 2 additions & 2 deletions stdlib/public/runtime/CMakeLists.txt
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Expand Up @@ -165,8 +165,8 @@ foreach(sdk ${ELFISH_SDKS})
set(section_magic_end_obj "${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/section_magic_end-${arch_suffix}.dir/swift_sections.S${CMAKE_C_OUTPUT_EXTENSION}")

set(ld_EXECUTABLE ${CMAKE_LINKER})
if(${SWIFT_SDK_${prefix}_ARCH_${arch}_LINKER})
set(ld_EXECUTABLE ${SWIFT_SDK_${prefix}_ARCH_${arch}_LINKER})
if(SWIFT_SDK_${sdk}_ARCH_${arch}_LINKER)
set(ld_EXECUTABLE ${SWIFT_SDK_${sdk}_ARCH_${arch}_LINKER})
endif()

add_custom_command_target(section_magic_${arch_suffix}_begin_object
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