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[cmake] Support host architectures other than x64 

Allow building for other architectures when cross-compiling for Windows.

Differential Revision: https://reviews.llvm.org/D41158

llvm-svn: 320656
This commit is contained in:
Shoaib Meenai 2017-12-13 23:12:38 +00:00
parent f82867c95a
commit 02fd152297
1 changed files with 28 additions and 5 deletions
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33
llvm/cmake/platforms/WinMsvc.cmake
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@ -4,11 +4,15 @@
# Usage:
# cmake -G Ninja
# -DCMAKE_TOOLCHAIN_FILE=/path/to/this/file
# -DHOST_ARCH=[aarch64|arm64|armv7|arm|i686|x86|x86_64|x64]
# -DLLVM_NATIVE_TOOLCHAIN=/path/to/llvm/installation
# -DMSVC_BASE=/path/to/MSVC/system/libraries/and/includes
# -DWINSDK_BASE=/path/to/windows-sdk
# -DWINSDK_VER=windows sdk version folder name
#
# HOST_ARCH:
# The architecture to build for.
#
# LLVM_NATIVE_TOOLCHAIN:
# *Absolute path* to a folder containing the toolchain which will be used to
# build. At a minimum, this folder should have a bin directory with a
@ -106,16 +110,35 @@ function(init_user_prop prop)
endif()
endfunction()
# FIXME: We should support target architectures other than x64
set(CMAKE_SYSTEM_NAME Windows)
set(CMAKE_SYSTEM_VERSION 10.0)
set(CMAKE_SYSTEM_PROCESSOR AMD64)
init_user_prop(HOST_ARCH)
init_user_prop(LLVM_NATIVE_TOOLCHAIN)
init_user_prop(MSVC_BASE)
init_user_prop(WINSDK_BASE)
init_user_prop(WINSDK_VER)
if(NOT HOST_ARCH)
set(HOST_ARCH x86_64)
endif()
if(HOST_ARCH STREQUAL "aarch64" OR HOST_ARCH STREQUAL "arm64")
set(TRIPLE_ARCH "aarch64")
set(WINSDK_ARCH "arm64")
elseif(HOST_ARCH STREQUAL "armv7" OR HOST_ARCH STREQUAL "arm")
set(TRIPLE_ARCH "armv7")
set(WINSDK_ARCH "arm")
elseif(HOST_ARCH STREQUAL "i686" OR HOST_ARCH STREQUAL "x86")
set(TRIPLE_ARCH "i686")
set(WINSDK_ARCH "x86")
elseif(HOST_ARCH STREQUAL "x86_64" OR HOST_ARCH STREQUAL "x64")
set(TRIPLE_ARCH "x86_64")
set(WINSDK_ARCH "x64")
else()
message(SEND_ERROR "Unknown host architecture ${HOST_ARCH}. Must be aarch64 (or arm64), armv7 (or arm), i686 (or x86), or x86_64 (or x64).")
endif()
set(MSVC_INCLUDE "${MSVC_BASE}/include")
set(MSVC_LIB "${MSVC_BASE}/lib")
set(WINSDK_INCLUDE "${WINSDK_BASE}/Include/${WINSDK_VER}")
@ -164,6 +187,7 @@ set(CROSS_TOOLCHAIN_FLAGS_NATIVE "${_CTF_NATIVE_DEFAULT}" CACHE STRING "")
set(COMPILE_FLAGS
-D_CRT_SECURE_NO_WARNINGS
--target=${TRIPLE_ARCH}-windows-msvc
-fms-compatibility-version=19.11
-imsvc "${MSVC_INCLUDE}"
-imsvc "${WINSDK_INCLUDE}/ucrt"
@ -189,10 +213,9 @@ set(LINK_FLAGS
# Prevent CMake from attempting to invoke mt.exe. It only recognizes the slashed form and not the dashed form.
/manifest:no
# FIXME: We should support target architectures other than x64.
-libpath:"${MSVC_LIB}/x64"
-libpath:"${WINSDK_LIB}/ucrt/x64"
-libpath:"${WINSDK_LIB}/um/x64")
-libpath:"${MSVC_LIB}/${WINSDK_ARCH}"
-libpath:"${WINSDK_LIB}/ucrt/${WINSDK_ARCH}"
-libpath:"${WINSDK_LIB}/um/${WINSDK_ARCH}")
string(REPLACE ";" " " LINK_FLAGS "${LINK_FLAGS}")