diff --git a/tests/elftls_dl_test.cpp b/tests/elftls_dl_test.cpp
index e2fa3a0..bcb2b40 100644
--- a/tests/elftls_dl_test.cpp
+++ b/tests/elftls_dl_test.cpp
@@ -29,10 +29,9 @@
 #include <dlfcn.h>
 #include <link.h>
 
-#include <android-base/file.h>
-#include <android-base/test_utils.h>
 #include <gtest/gtest.h>
 
+#include <string>
 #include <thread>
 
 #include "gtest_globals.h"
@@ -155,71 +154,11 @@
 
 TEST(elftls_dl, dtv_resize) {
 #if defined(__BIONIC__)
-#define LOAD_LIB(soname) ({                           \
-    auto lib = dlopen(soname, RTLD_LOCAL | RTLD_NOW); \
-    ASSERT_NE(nullptr, lib);                          \
-    reinterpret_cast<int(*)()>(dlsym(lib, "bump"));   \
-  })
-
-  auto dtv = []() -> TlsDtv* { return __get_tcb_dtv(__get_bionic_tcb()); };
-
-  static_assert(sizeof(TlsDtv) == 3 * sizeof(void*),
-                "This test assumes that the Dtv has a 3-word header");
-
-  // Initially there are 4 modules (5 w/ hwasan):
-  //  - the main test executable
-  //  - libc
-  //  - libtest_elftls_shared_var
-  //  - libtest_elftls_tprel
-  //  - w/ hwasan: libclang_rt.hwasan
-
-  // The initial DTV is an empty DTV with no generation and a size of 0.
-  TlsDtv* zero_dtv = dtv();
-  ASSERT_EQ(0u, zero_dtv->count);
-  ASSERT_EQ(nullptr, zero_dtv->next);
-  ASSERT_EQ(kTlsGenerationNone, zero_dtv->generation);
-
-  // Load module 5 (6 w/ hwasan).
-  auto func1 = LOAD_LIB("libtest_elftls_dynamic_filler_1.so");
-  ASSERT_EQ(101, func1());
-
-  // After loading one module, the DTV should be initialized to the next
-  // power-of-2 size (including the header).
-  TlsDtv* initial_dtv = dtv();
-  ASSERT_EQ(running_with_hwasan() ? 13u : 5u, dtv()->count);
-  ASSERT_EQ(zero_dtv, initial_dtv->next);
-  ASSERT_LT(0u, initial_dtv->generation);
-
-  // Load module 6 (7 w/ hwasan).
-  auto func2 = LOAD_LIB("libtest_elftls_dynamic_filler_2.so");
-  ASSERT_EQ(102, func1());
-
-#if defined(__aarch64__)
-  // The arm64 TLSDESC resolver doesn't update the DTV if it is new enough for
-  // the given access.
-  ASSERT_EQ(running_with_hwasan() ? 13u : 5u, dtv()->count);
-#else
-  // __tls_get_addr updates the DTV anytime the generation counter changes.
-  ASSERT_EQ(13u, dtv()->count);
-#endif
-
-  ASSERT_EQ(201, func2());
-  TlsDtv* new_dtv = dtv();
-  if (!running_with_hwasan()) {
-    ASSERT_NE(initial_dtv, new_dtv);
-    ASSERT_EQ(initial_dtv, new_dtv->next);
-  }
-  ASSERT_EQ(13u, new_dtv->count);
-
-  // Load module 7 (8 w/ hwasan).
-  auto func3 = LOAD_LIB("libtest_elftls_dynamic_filler_3.so");
-  ASSERT_EQ(103, func1());
-  ASSERT_EQ(202, func2());
-  ASSERT_EQ(301, func3());
-
-  ASSERT_EQ(new_dtv, dtv());
-
-#undef LOAD_LIB
+  std::string helper = GetTestlibRoot() + "/elftls_dtv_resize_helper";
+  chmod(helper.c_str(), 0755);  // TODO: "x" lost in CTS, b/34945607
+  ExecTestHelper eth;
+  eth.SetArgs({helper.c_str(), nullptr});
+  eth.Run([&]() { execve(helper.c_str(), eth.GetArgs(), eth.GetEnv()); }, 0, nullptr);
 #else
   GTEST_SKIP() << "test doesn't apply to glibc";
 #endif