[clang] [CMake] Allow parametrizing of the static libraries in Cross ARM CMake cache. NFC. (PR #118737)

[Vladimir Vereschaka via cfe-commits]

https://github.com/vvereschaka created https://github.com/llvm/llvm-project/pull/118737

In order to support the cross-arm remote tests for LLDB project

(see 'lldb-remote-linux-*' public builders for details).

>From d8264b55cb84b5a7c9f1534f7c7f81e3f5c6738c Mon Sep 17 00:00:00 2001
From: Vladimir Vereschaka <vvereschaka at accesssoftek.com>
Date: Wed, 4 Dec 2024 19:24:34 -0800
Subject: [PATCH] [CMake] Allow parametrizing of the static libraries in Cross
 ARM CMake cache.

In order to support the cross-arm remote tests for LLDB project
(see lldb-remote-linux builders for details).
---
 clang/cmake/caches/CrossWinToARMLinux.cmake | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/clang/cmake/caches/CrossWinToARMLinux.cmake b/clang/cmake/caches/CrossWinToARMLinux.cmake
index 853217c6db61a3..c47c4ac3bb73ec 100644
--- a/clang/cmake/caches/CrossWinToARMLinux.cmake
+++ b/clang/cmake/caches/CrossWinToARMLinux.cmake
@@ -96,7 +96,11 @@ endif()
 if (NOT DEFINED TOOLCHAIN_SHARED_LIBS)
   set(TOOLCHAIN_SHARED_LIBS OFF)
 endif()
- 
+# Enable usage of the static libunwind and libc++abi libraries.
+if (NOT DEFINED TOOLCHAIN_USE_STATIC_LIBS)
+  set(TOOLCHAIN_USE_STATIC_LIBS ON)
+endif()
+
 if (NOT DEFINED LLVM_TARGETS_TO_BUILD)
   if ("${TOOLCHAIN_TARGET_TRIPLE}" MATCHES "^(armv|arm32)+")
     set(LLVM_TARGETS_TO_BUILD "ARM" CACHE STRING "")
@@ -206,7 +210,7 @@ set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBUNWIND_USE_COMPILER_RT
 set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBUNWIND_ENABLE_SHARED                   ${TOOLCHAIN_SHARED_LIBS} CACHE BOOL "")
 
 set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXXABI_USE_LLVM_UNWINDER               ON CACHE BOOL "")
-set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXXABI_ENABLE_STATIC_UNWINDER          ON CACHE BOOL "")
+set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXXABI_ENABLE_STATIC_UNWINDER          ${TOOLCHAIN_USE_STATIC_LIBS} CACHE BOOL "")
 set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXXABI_USE_COMPILER_RT                 ON CACHE BOOL "")
 set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXXABI_ENABLE_NEW_DELETE_DEFINITIONS   OFF CACHE BOOL "")
 set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXXABI_ENABLE_SHARED                   ${TOOLCHAIN_SHARED_LIBS} CACHE BOOL "")
@@ -217,7 +221,7 @@ set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXX_ABI_VERSION
 set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXX_CXX_ABI                            "libcxxabi" CACHE STRING "")    #!!!
 set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXX_ENABLE_NEW_DELETE_DEFINITIONS      ON CACHE BOOL "")
 # Merge libc++ and libc++abi libraries into the single libc++ library file.
-set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXX_ENABLE_STATIC_ABI_LIBRARY          ON CACHE BOOL "")
+set(RUNTIMES_${TOOLCHAIN_TARGET_TRIPLE}_LIBCXX_ENABLE_STATIC_ABI_LIBRARY          ${TOOLCHAIN_USE_STATIC_LIBS} CACHE BOOL "")
 # Forcely disable the libc++ benchmarks on Windows build hosts
 # (current benchmark test configuration does not support the cross builds there).
 if (WIN32)