Index: test/sanitizer_common/CMakeLists.txt
===================================================================
--- test/sanitizer_common/CMakeLists.txt
+++ test/sanitizer_common/CMakeLists.txt
@@ -3,18 +3,17 @@
 set(SANITIZER_COMMON_TEST_DEPS ${SANITIZER_COMMON_LIT_TEST_DEPS})
 set(SANITIZER_COMMON_TESTSUITES)
 
+# FIXME(dliew): We should switch to COMPILER_RT_SANITIZERS_TO_BUILD instead of
+# the hard coded `SUPPORTED_TOOLS_INIT` list once we know that the other
+# sanitizers work.
+set(SUPPORTED_TOOLS_INIT asan lsan msan tsan ubsan)
 set(SUPPORTED_TOOLS)
-if(CMAKE_SYSTEM_NAME MATCHES "Darwin|Linux|FreeBSD|NetBSD|SunOS")
-  list(APPEND SUPPORTED_TOOLS asan)
-endif()
-if(CMAKE_SYSTEM_NAME MATCHES "NetBSD" OR (CMAKE_SYSTEM_NAME MATCHES "Linux" AND NOT ANDROID))
-  list(APPEND SUPPORTED_TOOLS tsan)
-  list(APPEND SUPPORTED_TOOLS msan)
-  list(APPEND SUPPORTED_TOOLS ubsan)
-endif()
-if(CMAKE_SYSTEM_NAME MATCHES "Linux" AND NOT ANDROID)
-  list(APPEND SUPPORTED_TOOLS lsan)
-endif()
+foreach(SANITIZER_TOOL ${SUPPORTED_TOOLS_INIT})
+  string(TOUPPER ${SANITIZER_TOOL} SANITIZER_TOOL_UPPER)
+  if (COMPILER_RT_HAS_${SANITIZER_TOOL_UPPER})
+    list(APPEND SUPPORTED_TOOLS ${SANITIZER_TOOL})
+  endif()
+endforeach()
 
 # Create a separate config for each tool we support.
 foreach(tool ${SUPPORTED_TOOLS})
@@ -27,6 +26,8 @@
     darwin_filter_host_archs(${tool_toupper}_SUPPORTED_ARCH TEST_ARCH)
   endif()
 
+  # TODO(dliew): We should iterate over the different
+  # Apple platforms, not just macOS.
   foreach(arch ${TEST_ARCH})
     set(SANITIZER_COMMON_LIT_TEST_MODE ${tool})
     set(SANITIZER_COMMON_TEST_TARGET_ARCH ${arch})
Index: test/sanitizer_common/TestCases/Darwin/abort_on_error.cc
===================================================================
--- test/sanitizer_common/TestCases/Darwin/abort_on_error.cc
+++ test/sanitizer_common/TestCases/Darwin/abort_on_error.cc
@@ -9,6 +9,9 @@
 // When we use lit's default options, we shouldn't crash.
 // RUN: not %run %t 2>&1
 
+// FIXME(dliew): Make this test work with other sanitizers
+// UNSUPPORTED: darwin && !asan
+
 int global;
 
 int main() {
Index: test/sanitizer_common/TestCases/Darwin/print-stack-trace.cc
===================================================================
--- test/sanitizer_common/TestCases/Darwin/print-stack-trace.cc
+++ test/sanitizer_common/TestCases/Darwin/print-stack-trace.cc
@@ -1,6 +1,9 @@
 // RUN: %clangxx -O0 %s -o %t && %env_tool_opts=stack_trace_format=DEFAULT %run %t 2>&1 | FileCheck %s
 // RUN: %env_tool_opts=stack_trace_format='"frame:%n lineno:%l"' %run %t 2>&1 | FileCheck %s --check-prefix=CUSTOM
 
+// FIXME(dliew): Make this test work with other sanitizers
+// UNSUPPORTED: darwin && (lsan || tsan || ubsan)
+
 #include <sanitizer/common_interface_defs.h>
 
 static inline void FooBarBaz() {
Index: test/sanitizer_common/TestCases/Posix/dedup_token_length_test.cc
===================================================================
--- test/sanitizer_common/TestCases/Posix/dedup_token_length_test.cc
+++ test/sanitizer_common/TestCases/Posix/dedup_token_length_test.cc
@@ -10,6 +10,9 @@
 
 // XFAIL: netbsd && !asan
 
+// FIXME(dliew): Make this test work with other sanitizers
+// UNSUPPORTED: darwin && (lsan || tsan || ubsan)
+
 volatile int *null = 0;
 
 namespace Xyz {
Index: test/sanitizer_common/TestCases/Posix/sanitizer_set_death_callback_test.cc
===================================================================
--- test/sanitizer_common/TestCases/Posix/sanitizer_set_death_callback_test.cc
+++ test/sanitizer_common/TestCases/Posix/sanitizer_set_death_callback_test.cc
@@ -3,6 +3,8 @@
 // REQUIRES: stable-runtime
 
 // XFAIL: ubsan
+// FIXME(dliew): Make this test work on Darwin with LSan
+// UNSUPPORTED: darwin && lsan
 
 #include <sanitizer/common_interface_defs.h>
 #include <stdio.h>
Index: test/sanitizer_common/TestCases/symbolize_stack.cc
===================================================================
--- test/sanitizer_common/TestCases/symbolize_stack.cc
+++ test/sanitizer_common/TestCases/symbolize_stack.cc
@@ -2,6 +2,9 @@
 
 // Test that symbolizer does not crash on frame with large function name.
 
+// FIXME(dliew): Make this test work with the other sanitizers.
+// UNSUPPORTED: darwin && (lsan || tsan || ubsan)
+
 #include <sanitizer/common_interface_defs.h>
 #include <vector>