32: 0000000000401030     0 FUNC    GLOBAL DEFAULT  UND _ZSt4endlIcSt11c[...]
    33: 0000000000401230    22 FUNC    GLOBAL DEFAULT   15 _ZN3Sum3sumEii
    34: 0000000000404058     0 OBJECT  GLOBAL HIDDEN    25 __dso_handle
    35: 0000000000401318     0 FUNC    GLOBAL HIDDEN    16 _fini
    36: 0000000000000000     0 FUNC    GLOBAL DEFAULT  UND __libc_start_mai[...]
    37: 0000000000401170     5 FUNC    GLOBAL HIDDEN    15 _dl_relocate_sta[...]

			Size:    0x4,
		},
		Symbol{
			Name:    "__data_start",
			Info:    0x10,
			Other:   0x0,
			Section: 0x18,
			Value:   0x600880,
			Size:    0x0,
		},
		Symbol{
			Name:    "__dso_handle",
			Info:    0x11,
			Other:   0x2,
			Section: 0x18,
			Value:   0x600888,
			Size:    0x0,
		},
		Symbol{
			Name:    "__libc_csu_init",
			Info:    0x12,
			Other:   0x0,

			{"/usr/src/lib/csu/i386-elf/crtn.S", 4, 0, 65521, 0, 0, "", ""},
			{"hello.c", 4, 0, 65521, 0, 0, "", ""},
			{"printf", 18, 0, 0, 0, 44, "", ""},
			{"_DYNAMIC", 17, 0, 65521, 134518284, 0, "", ""},
			{"__dso_handle", 17, 2, 11, 134518272, 0, "", ""},
			{"_init", 18, 0, 6, 134513512, 0, "", ""},
			{"environ", 17, 0, 18, 134518512, 4, "", ""},
			{"__deregister_frame_info", 32, 0, 0, 0, 0, "", ""},

// must define.
typedef void (*TFInitGraphPluginFn)(TP_OptimizerRegistrationParams* const,
                                    TF_Status* const);

// Registers Graph optimizers.
Status InitGraphPlugin(void* dso_handle);

// Allow registering a graph optimizer using a function (used for
// testing).
Status InitGraphPlugin(TFInitGraphPluginFn init_fn);

struct GrapplerItem;
class Cluster;

struct TFStatusDeleter {

  // Step 1: Load plugin
  Env* env = Env::Default();
  void* dso_handle;
  TF_RETURN_IF_ERROR(env->LoadDynamicLibrary(dso_path.c_str(), &dso_handle));

  // Step 2: Load symbol for `TF_InitPlugin`
  void* dso_symbol;
  TF_RETURN_WITH_CONTEXT_IF_ERROR(
      env->GetSymbolFromLibrary(dso_handle, "TF_InitPlugin", &dso_symbol),
      "Failed to load TF_InitPlugin symbol for DSO: ", dso_path);

      creator, device_type, configs);
}

#undef CONFIG_TOGGLE

absl::Status InitGraphPlugin(void* dso_handle) {
  tsl::Env* env = tsl::Env::Default();

  // Step 1: Load symbol for `TF_InitPlugin`
  void* dso_symbol;
  TF_RETURN_IF_ERROR(
      env->GetSymbolFromLibrary(dso_handle, "TF_InitGraph", &dso_symbol));

  // Step 2: Call `TF_InitPlugin`

                               TF_Status* const);

// Registers StreamExecutor platform. `device_type` and `platform_name` are
// output parameters.
absl::Status InitStreamExecutorPlugin(void* dso_handle,
                                      std::string* device_type,
                                      std::string* platform_name);

// Allow registering a StreamExecutor plugin using a function (used for
// testing).

}

absl::Status InitStreamExecutorPlugin(void* dso_handle,
                                      std::string* device_type,
                                      std::string* platform_name) {
  tensorflow::Env* env = tensorflow::Env::Default();

  // Step 1: Load symbol for `TF_InitPlugin`
  void* dso_symbol;
  TF_RETURN_IF_ERROR(
      env->GetSymbolFromLibrary(dso_handle, "SE_InitPlugin", &dso_symbol));