diff --git a/compiler-rt/CMakeLists.txt b/compiler-rt/CMakeLists.txt
--- a/compiler-rt/CMakeLists.txt
+++ b/compiler-rt/CMakeLists.txt
@@ -474,6 +474,8 @@
 append_list_if(MINGW -fms-extensions SANITIZER_COMMON_CFLAGS)
 
 # Set common link flags.
+# TODO: We should consider using the same model as libc++, that is use either
+# -nostdlib++ and --unwindlib=none if supported, or -nodefaultlibs otherwise.
 append_list_if(C_SUPPORTS_NODEFAULTLIBS_FLAG -nodefaultlibs SANITIZER_COMMON_LINK_FLAGS)
 append_list_if(COMPILER_RT_HAS_Z_TEXT -Wl,-z,text SANITIZER_COMMON_LINK_FLAGS)
 
@@ -533,10 +535,14 @@
 set(COMPILER_RT_UNITTEST_LINK_FLAGS ${COMPILER_RT_UNITTEST_CFLAGS})
 
 if(COMPILER_RT_USE_LLVM_UNWINDER)
+  # We're linking directly against the libunwind that we're building so don't
+  # try to link in the toolchain's default libunwind which may be missing.
+  append_list_if(CXX_SUPPORTS_UNWINDLIB_NONE_FLAG --unwindlib=none COMPILER_RT_COMMON_LINK_FLAGS)
+  append_list_if(CXX_SUPPORTS_UNWINDLIB_NONE_FLAG --unwindlib=none COMPILER_RT_UNITTEST_LINK_FLAGS)
   if (COMPILER_RT_ENABLE_STATIC_UNWINDER)
-    list(APPEND SANITIZER_CXX_ABI_LIBRARIES "$<TARGET_LINKER_FILE:unwind_static>")
+    list(APPEND COMPILER_RT_UNWINDER_LINK_LIBS "$<TARGET_LINKER_FILE:unwind_static>")
   else()
-    list(APPEND SANITIZER_CXX_ABI_LIBRARIES "$<TARGET_LINKER_FILE:$<IF:$<TARGET_EXISTS:unwind_shared>,unwind_shared,unwind_static>>")
+    list(APPEND COMPILER_RT_UNWINDER_LINK_LIBS "$<TARGET_LINKER_FILE:$<IF:$<TARGET_EXISTS:unwind_shared>,unwind_shared,unwind_static>>")
   endif()
 endif()
 
@@ -561,6 +567,11 @@
 
 macro(append_libcxx_libs var)
   if (${var}_INTREE)
+    # TODO: We don't need to add --unwindlib=none to SANITIZER_COMMON_LINK_FLAGS
+    # because we added -nodefaultlibs there earlier, and adding would result in
+    # a warning, but if we switch to -nostdlib++, we would need to add it here.
+    # append_list_if(CXX_SUPPORTS_UNWINDLIB_NONE_FLAG --unwindlib=none SANITIZER_COMMON_LINK_FLAGS)
+
     if (SANITIZER_USE_STATIC_LLVM_UNWINDER AND (TARGET unwind_static OR HAVE_LIBUNWIND))
       list(APPEND ${var}_LIBRARIES unwind_static)
     elseif (TARGET unwind_shared OR HAVE_LIBUNWIND)
diff --git a/compiler-rt/lib/asan/tests/CMakeLists.txt b/compiler-rt/lib/asan/tests/CMakeLists.txt
--- a/compiler-rt/lib/asan/tests/CMakeLists.txt
+++ b/compiler-rt/lib/asan/tests/CMakeLists.txt
@@ -38,6 +38,7 @@
 # during cross compilation
 set(ASAN_UNITTEST_COMMON_LINK_FLAGS
   ${COMPILER_RT_UNITTEST_LINK_FLAGS}
+  ${COMPILER_RT_UNWINDER_LINK_LIBS}
   ${SANITIZER_TEST_CXX_LIBRARIES})
 
 # -gline-tables-only must be enough for ASan, so use it if possible.
diff --git a/compiler-rt/lib/gwp_asan/tests/CMakeLists.txt b/compiler-rt/lib/gwp_asan/tests/CMakeLists.txt
--- a/compiler-rt/lib/gwp_asan/tests/CMakeLists.txt
+++ b/compiler-rt/lib/gwp_asan/tests/CMakeLists.txt
@@ -36,6 +36,7 @@
 
 set(GWP_ASAN_UNITTEST_LINK_FLAGS
   ${COMPILER_RT_UNITTEST_LINK_FLAGS} -ldl
+  ${COMPILER_RT_UNWINDER_LINK_LIBS}
   ${SANITIZER_TEST_CXX_LIBRARIES})
 list(APPEND GWP_ASAN_UNITTEST_LINK_FLAGS --driver-mode=g++)
 if(NOT WIN32)
diff --git a/compiler-rt/lib/interception/tests/CMakeLists.txt b/compiler-rt/lib/interception/tests/CMakeLists.txt
--- a/compiler-rt/lib/interception/tests/CMakeLists.txt
+++ b/compiler-rt/lib/interception/tests/CMakeLists.txt
@@ -23,6 +23,7 @@
 
 set(INTERCEPTION_TEST_LINK_FLAGS_COMMON
   ${COMPILER_RT_UNITTEST_LINK_FLAGS}
+  ${COMPILER_RT_UNWINDER_LINK_LIBS}
   ${SANITIZER_TEST_CXX_LIBRARIES})
 
 # -gline-tables-only must be enough for these tests, so use it if possible.
diff --git a/compiler-rt/lib/memprof/tests/CMakeLists.txt b/compiler-rt/lib/memprof/tests/CMakeLists.txt
--- a/compiler-rt/lib/memprof/tests/CMakeLists.txt
+++ b/compiler-rt/lib/memprof/tests/CMakeLists.txt
@@ -40,7 +40,9 @@
   list(APPEND MEMPROF_UNITTEST_LINK_FLAGS -pthread)
 endif()
 
-set(MEMPROF_UNITTEST_LINK_LIBRARIES ${SANITIZER_TEST_CXX_LIBRARIES})
+set(MEMPROF_UNITTEST_LINK_LIBRARIES
+  ${COMPILER_RT_UNWINDER_LINK_LIBS}
+  ${SANITIZER_TEST_CXX_LIBRARIES})
 list(APPEND MEMPROF_UNITTEST_LINK_LIBRARIES "dl")
 
 if(COMPILER_RT_DEFAULT_TARGET_ARCH IN_LIST MEMPROF_SUPPORTED_ARCH)
diff --git a/compiler-rt/lib/orc/CMakeLists.txt b/compiler-rt/lib/orc/CMakeLists.txt
--- a/compiler-rt/lib/orc/CMakeLists.txt
+++ b/compiler-rt/lib/orc/CMakeLists.txt
@@ -53,7 +53,9 @@
   ${COMPILER_RT_COMMON_CFLAGS}
   ${COMPILER_RT_CXX_CFLAGS})
 set(ORC_LINK_FLAGS ${COMPILER_RT_COMMON_LINK_FLAGS})
-set(ORC_LINK_LIBS ${COMPILER_RT_CXX_LINK_LIBS})
+set(ORC_LINK_LIBS
+  ${COMPILER_RT_UNWINDER_LINK_LIBS}
+  ${COMPILER_RT_CXX_LINK_LIBS})
 
 # Allow the ORC runtime to reference LLVM headers.
 foreach (DIR ${LLVM_INCLUDE_DIR} ${LLVM_MAIN_INCLUDE_DIR})
diff --git a/compiler-rt/lib/orc/unittests/CMakeLists.txt b/compiler-rt/lib/orc/unittests/CMakeLists.txt
--- a/compiler-rt/lib/orc/unittests/CMakeLists.txt
+++ b/compiler-rt/lib/orc/unittests/CMakeLists.txt
@@ -37,8 +37,8 @@
 set(ORC_UNITTEST_LINK_FLAGS
   ${COMPILER_RT_UNITTEST_LINK_FLAGS}
   ${CMAKE_THREAD_LIBS_INIT}
-  ${COMPILER_RT_CXX_LINK_LIBS}
-  )
+  ${COMPILER_RT_UNWINDER_LINK_LIBS}
+  ${COMPILER_RT_CXX_LINK_LIBS})
 
 if(APPLE)
   darwin_filter_host_archs(ORC_SUPPORTED_ARCH ORC_TEST_ARCH)
diff --git a/compiler-rt/lib/sanitizer_common/tests/CMakeLists.txt b/compiler-rt/lib/sanitizer_common/tests/CMakeLists.txt
--- a/compiler-rt/lib/sanitizer_common/tests/CMakeLists.txt
+++ b/compiler-rt/lib/sanitizer_common/tests/CMakeLists.txt
@@ -74,6 +74,7 @@
 
 set(SANITIZER_TEST_LINK_FLAGS_COMMON
   ${COMPILER_RT_UNITTEST_LINK_FLAGS}
+  ${COMPILER_RT_UNWINDER_LINK_LIBS}
   ${SANITIZER_TEST_CXX_LIBRARIES})
 
 # -gline-tables-only must be enough for these tests, so use it if possible.
diff --git a/compiler-rt/lib/scudo/standalone/tests/CMakeLists.txt b/compiler-rt/lib/scudo/standalone/tests/CMakeLists.txt
--- a/compiler-rt/lib/scudo/standalone/tests/CMakeLists.txt
+++ b/compiler-rt/lib/scudo/standalone/tests/CMakeLists.txt
@@ -36,6 +36,7 @@
 # gtests requires c++
 set(SCUDO_UNITTEST_LINK_FLAGS
   ${COMPILER_RT_UNITTEST_LINK_FLAGS}
+  ${COMPILER_RT_UNWINDER_LINK_LIBS}
   ${SANITIZER_TEST_CXX_LIBRARIES})
 list(APPEND SCUDO_UNITTEST_LINK_FLAGS -pthread -no-pie)
 # Linking against libatomic is required with some compilers
diff --git a/compiler-rt/lib/tsan/tests/CMakeLists.txt b/compiler-rt/lib/tsan/tests/CMakeLists.txt
--- a/compiler-rt/lib/tsan/tests/CMakeLists.txt
+++ b/compiler-rt/lib/tsan/tests/CMakeLists.txt
@@ -27,6 +27,7 @@
 
 set(TSAN_UNITTEST_LINK_FLAGS
   ${COMPILER_RT_UNITTEST_LINK_FLAGS}
+  ${COMPILER_RT_UNWINDER_LINK_LIBS}
   ${SANITIZER_TEST_CXX_LIBRARIES})
 
 if(APPLE)
diff --git a/compiler-rt/lib/xray/CMakeLists.txt b/compiler-rt/lib/xray/CMakeLists.txt
--- a/compiler-rt/lib/xray/CMakeLists.txt
+++ b/compiler-rt/lib/xray/CMakeLists.txt
@@ -150,7 +150,9 @@
 append_rtti_flag(OFF XRAY_CFLAGS)
 
 set(XRAY_LINK_FLAGS ${COMPILER_RT_COMMON_LINK_FLAGS})
-set(XRAY_LINK_LIBS ${COMPILER_RT_CXX_LINK_LIBS})
+set(XRAY_LINK_LIBS
+  ${COMPILER_RT_UNWINDER_LINK_LIBS}
+  ${COMPILER_RT_CXX_LINK_LIBS})
 
 append_list_if(
   COMPILER_RT_HAS_XRAY_COMPILER_FLAG XRAY_SUPPORTED=1 XRAY_COMMON_DEFINITIONS)
diff --git a/compiler-rt/lib/xray/tests/CMakeLists.txt b/compiler-rt/lib/xray/tests/CMakeLists.txt
--- a/compiler-rt/lib/xray/tests/CMakeLists.txt
+++ b/compiler-rt/lib/xray/tests/CMakeLists.txt
@@ -50,8 +50,8 @@
 set(XRAY_UNITTEST_LINK_FLAGS
   ${COMPILER_RT_UNITTEST_LINK_FLAGS}
   ${CMAKE_THREAD_LIBS_INIT}
-  ${COMPILER_RT_CXX_LINK_LIBS}
-  )
+  ${COMPILER_RT_UNWINDER_LINK_LIBS}
+  ${COMPILER_RT_CXX_LINK_LIBS})
 
 if (NOT APPLE)
   # Needed by LLVMSupport.