diff --git a/utils/bazel/llvm-project-overlay/llvm/config.bzl b/utils/bazel/llvm-project-overlay/llvm/config.bzl
--- a/utils/bazel/llvm-project-overlay/llvm/config.bzl
+++ b/utils/bazel/llvm-project-overlay/llvm/config.bzl
@@ -49,6 +49,7 @@
     "HAVE_MALLOC_MALLOC_H=1",
     "HAVE_MALLOC_ZONE_STATISTICS=1",
     "HAVE_PROC_PID_RUSAGE=1",
+    "HAVE_UNW_ADD_DYNAMIC_FDE=1",
 ]
 
 win32_defines = [
diff --git a/utils/bazel/llvm-project-overlay/llvm/include/llvm/Config/config.h b/utils/bazel/llvm-project-overlay/llvm/include/llvm/Config/config.h
--- a/utils/bazel/llvm-project-overlay/llvm/include/llvm/Config/config.h
+++ b/utils/bazel/llvm-project-overlay/llvm/include/llvm/Config/config.h
@@ -80,6 +80,9 @@
 /* Define to 1 if we can deregister EH frames on this platform. */
 #define HAVE_DEREGISTER_FRAME 1
 
+/* Define if __unw_add_dynamic_fde() is available on this platform. */
+/* HAVE_UNW_ADD_DYNAMIC_FDE defined in Bazel */
+
 /* Define to 1 if you have the <errno.h> header file. */
 #define HAVE_ERRNO_H 1
 
diff --git a/utils/bazel/llvm_configs/config.h.cmake b/utils/bazel/llvm_configs/config.h.cmake
--- a/utils/bazel/llvm_configs/config.h.cmake
+++ b/utils/bazel/llvm_configs/config.h.cmake
@@ -64,6 +64,9 @@
 /* Define to 1 if we can deregister EH frames on this platform. */
 #cmakedefine HAVE_DEREGISTER_FRAME ${HAVE_DEREGISTER_FRAME}
 
+/* Define if __unw_add_dynamic_fde() is available on this platform. */
+#cmakedefine HAVE_UNW_ADD_DYNAMIC_FDE ${HAVE_UNW_ADD_DYNAMIC_FDE}
+
 /* Define to 1 if you have the <errno.h> header file. */
 #cmakedefine HAVE_ERRNO_H ${HAVE_ERRNO_H}