[CMake][compiler-rt] Use copying instead of symlinking for LSE builtins on non-Unix-likes
As reported in D93278 post-review symlinking requires privilege escalation on Windows.
Copying is functionally same, so fallback to it for systems that aren't Unix-like.
This is similar to the solution in AddLLVM.cmake.
Reviewed By: ikudrin
Differential Revision: https://reviews.llvm.org/D98111
(cherry picked from commit ba860963b156db3b653c67ef044df877f3cea9cc)
diff --git a/compiler-rt/lib/builtins/CMakeLists.txt b/compiler-rt/lib/builtins/CMakeLists.txt
index b511a9a..73b6bea 100644
--- a/compiler-rt/lib/builtins/CMakeLists.txt
+++ b/compiler-rt/lib/builtins/CMakeLists.txt
@@ -515,6 +515,12 @@
set(OA_HELPERS_DIR "${CMAKE_CURRENT_BINARY_DIR}/outline_atomic_helpers.dir")
file(MAKE_DIRECTORY "${OA_HELPERS_DIR}")
+if(CMAKE_HOST_UNIX)
+ set(COMPILER_RT_LINK_OR_COPY create_symlink)
+else()
+ set(COMPILER_RT_LINK_OR_COPY copy)
+endif()
+
foreach(pat cas swp ldadd ldclr ldeor ldset)
foreach(size 1 2 4 8 16)
foreach(model 1 2 3 4)
@@ -522,7 +528,7 @@
set(helper_asm "${OA_HELPERS_DIR}/outline_atomic_${pat}${size}_${model}.S")
add_custom_command(
OUTPUT ${helper_asm}
- COMMAND ${CMAKE_COMMAND} -E create_symlink "${CMAKE_CURRENT_SOURCE_DIR}/aarch64/lse.S" "${helper_asm}"
+ COMMAND ${CMAKE_COMMAND} -E ${COMPILER_RT_LINK_OR_COPY} "${CMAKE_CURRENT_SOURCE_DIR}/aarch64/lse.S" "${helper_asm}"
)
set_source_files_properties("${helper_asm}"
PROPERTIES
