C:\working_directory>type hello.cpp
#include <iostream>

int main()
{
   std::cout << "Hello, world!" << std::endl;
   return 0;
}

C:\working_directory>tiarmclang -mcpu=cortex-m0 hello.cpp -o hello.out -Wl,-c

C:\working_directory>tiarmclang -fexceptions -mcpu=cortex-m0 hello.cpp -o hello.out -Wl,-c

undefined              first referenced
  symbol                    in file
---------              ----------------
_Unwind_Resume         C:\Users\name\AppData\Local\Temp\hello-81da66.o
__aeabi_unwind_cpp_pr0 C:\Users\name\AppData\Local\Temp\hello-81da66.o
__cxa_begin_catch      C:\Users\name\AppData\Local\Temp\hello-81da66.o
__cxa_end_catch        C:\Users\name\AppData\Local\Temp\hello-81da66.o
__gxx_personality_v0   C:\Users\name\AppData\Local\Temp\hello-81da66.o

error: unresolved symbols remain
error: errors encountered during linking; "hello.out" not built
tiarmclang: error: tiarmlnk command failed with exit code 1 (use -v to see invocation)