--- /dev/null
+++ libmalloc/libmalloc-715.100.22/tests/exclavecore_support.c
@@ -0,0 +1,62 @@
+//
+//  exclavecore_support.c
+//  libmalloc
+//
+//  Minirunner support for running darwintests in exclavecore
+//
+
+#include <stdio.h>
+#include <darwintest.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <platform/platform.h>
+#include <xrt/endpoint.h>
+
+
+LIBLIBC_PLAT_EP(hello_endpoint, "HelloExclave");
+static xrt_endpoint_t hello_xrt_endpoint;
+
+static xrt_thread_t *main_thrd = NULL;
+
+extern void minirunner_exclave(void);
+
+static L4_MessageTag_t endpoint_thread(void *ctx, L4_MessageTag_t tag,
+                                       L4_Word_t badge) {
+    printf("[HELLO-C] ipcb %p tag %lx badge %lx\n", L4_IpcBuffer(), tag, badge);
+    return L4_MessageTag(0, 0, L4_MessageTag_Label(tag) + 1, L4_False);
+}
+
+static int run_tests(void *arg) {
+    /* Call the minirunner to start executing all tests */
+    minirunner_exclave();
+    return 0;
+}
+
+int xrt_init(void) {
+    xrt_endpoint_config_t config = {
+        .handler = endpoint_thread,
+        .handler_ctx = NULL,
+        .num_handlers = 1,
+        .num_src_slots = 0,
+        .num_dst_slots = 0,
+    };
+    if (hello_endpoint.ep_cap != L4_Nil) {
+        printf("Spawning endpoint listener thread...\n");
+        xrt_endpoint_create(&hello_xrt_endpoint, hello_endpoint.ep_cap, &config);
+    } else {
+        printf("Skipping endpoint listener thread due to nil cap!\n");
+    }
+
+    if (L4_Platform_Major(xrt__plat_get()) == L4_Platform_EVP) {
+        printf("Spawning main thread...\n");
+        xrt_thread_create(&main_thrd, run_tests, NULL);
+    }
+    return 0;
+}
+
+// TODO: Remove this when rdar://118895397 is fixed
+T_HELPER_DECL(do_nothing, "Put the __dt_helper section into the output binary")
+{
+
+}