commit c046a04ebc2810f6191cc0ad936968b6b2fbd7bc
author Petr Hosek <phosek@chromium.org> Mon Jan 08 23:50:59 2018 +0000
committer Petr Hosek <phosek@chromium.org> Mon Jan 08 23:50:59 2018 +0000
tree 74003150ac4ceedf16947619a43e667e3657c3ab
parent 87e61923a483cdffcca0ee1d9c577201f7f74124

[CMake] Support for cross-compilation when build runtimes

When cross-compiling, we cannot use the just built toolchain, instead
we need to use the host toolchain which we assume has a support for
targeting the selected target platform. We also need to pass the path
to the native version of llvm-config to external projects.

Differential Revision: https://reviews.llvm.org/D41678

llvm-svn: 322046

llvm/cmake/modules/CrossCompile.cmake

diff --git a/llvm/cmake/modules/CrossCompile.cmake b/llvm/cmake/modules/CrossCompile.cmake
index c0c06c8..b239816 100644
--- a/llvm/cmake/modules/CrossCompile.cmake
+++ b/llvm/cmake/modules/CrossCompile.cmake
@@ -50,6 +50,8 @@
         -DLLVM_TARGET_IS_CROSSCOMPILE_HOST=TRUE
         -DLLVM_TARGETS_TO_BUILD="${targets_to_build_arg}"
         -DLLVM_EXPERIMENTAL_TARGETS_TO_BUILD="${experimental_targets_to_build_arg}"
+        -DLLVM_DEFAULT_TARGET_TRIPLE="${TARGET_TRIPLE}"
+        -DLLVM_TARGET_ARCH="${LLVM_TARGET_ARCH}"
         ${build_type_flags} ${linker_flag} ${external_clang_dir}
     WORKING_DIRECTORY ${LLVM_${target_name}_BUILD}
     DEPENDS CREATE_LLVM_${target_name}