split shared and exe flags

Author: zwass

build.sh

@@ -62,8 +62,8 @@ function build_llvm() {
             -DCMAKE_INSTALL_PREFIX=${install_dir} \
             -DCMAKE_C_FLAGS="${additional_compiler_flags}" \
             -DCMAKE_CXX_FLAGS="${additional_compiler_flags}" \
-            -DCMAKE_EXE_LINKER_FLAGS="-Wl,--strip-all ${additional_linker_flags}" \
-            -DCMAKE_SHARED_LINKER_FLAGS="-Wl,--strip-all ${additional_linker_flags}" \
+            -DCMAKE_EXE_LINKER_FLAGS="-Wl,--strip-all ${additional_linker_flags} ${additional_exe_linker_flags}" \
+            -DCMAKE_SHARED_LINKER_FLAGS="-Wl,--strip-all ${additional_linker_flags} ${additional_shared_linker_flags}" \
             -DCMAKE_SYSROOT="${SYSROOT}" \
             -DLLVM_REQUIRES_RTTI=ON \
             -DLLVM_TARGETS_TO_BUILD=${targets_to_build} \
@@ -362,6 +362,7 @@ llvm_additional_cmake="${llvm_additional_cmake} -DCLANG_DEFAULT_RTLIB=compiler-r
 llvm_additional_cmake="${llvm_additional_cmake} -DLLVM_ENABLE_LIBCXX=ON"
 llvm_additional_cmake="${llvm_additional_cmake} -DCOMPILER_RT_USE_BUILTINS_LIBRARY=ON"
 llvm_additional_cmake="${llvm_additional_cmake} -DCMAKE_CXX_STANDARD=20"
+llvm_additional_cmake="${llvm_additional_cmake} -DLLVM_USE_LINKER=lld"
 
 build_folder="build-llvm-final" \
 cc_compiler="clang" \
@@ -370,7 +371,9 @@ install_dir="$PREFIX" \
 llvm_projects='clang;compiler-rt;lld;clang-tools-extra' \
 targets_to_build="$LLVM_MACHINE;BPF" \
 additional_compiler_flags="" \
-additional_linker_flags="-rtlib=compiler-rt -l:libc++abi.a -ldl -lpthread" \
+additional_linker_flags="-rtlib=compiler-rt -ldl -lpthread" \
+additional_exe_linker_flags="-Wl,--whole-archive,-lc++abi,--no-whole-archive" \
+additional_shared_linker_flags="-lc++abi" \
 additional_cmake="${llvm_additional_cmake}" \
 build_llvm