Index: cmake/Modules/CustomLibcxx/CMakeLists.txt
===================================================================
--- cmake/Modules/CustomLibcxx/CMakeLists.txt
+++ cmake/Modules/CustomLibcxx/CMakeLists.txt
@@ -4,6 +4,7 @@
 # Build static libcxxabi.
 set(LIBCXXABI_STANDALONE_BUILD 1)
 set(LIBCXXABI_ENABLE_SHARED OFF CACHE BOOL "")
+set(LIBCXXABI_ENABLE_EXCEPTIONS OFF CACHE BOOL "")
 set(LIBCXXABI_HERMETIC_STATIC_LIBRARY ON CACHE STRING "")
 set(LIBCXXABI_LIBCXX_PATH ${COMPILER_RT_LIBCXX_PATH} CACHE PATH "")
 set(LIBCXXABI_INCLUDE_TESTS OFF CACHE BOOL "")
Index: test/fuzzer/libcxx.test
===================================================================
--- test/fuzzer/libcxx.test
+++ test/fuzzer/libcxx.test
@@ -0,0 +1,15 @@
+# Ensures that the libFuzzer library does not export exceptions.
+
+RUN: %cpp_compiler %S/SimpleTest.cpp -o %t
+RUN: nm %t 2>&1 | FileCheck %s
+
+CHECK-NOT: t __cxa_allocate_dependent_exception
+CHECK-NOT: t __cxa_allocate_exception
+CHECK-NOT: t __cxa_begin_catch
+CHECK-NOT: t __cxa_call_unexpected
+CHECK-NOT: t __cxa_current_exception_type
+CHECK-NOT: t __cxa_end_catch
+CHECK-NOT: t __cxa_free_dependent_exception
+CHECK-NOT: t __cxa_free_exception
+CHECK-NOT: t __cxa_get_exception_ptr
+CHECK-NOT: t __cxa_throw