JDK-8147388 introduced some new diagnostic commands for jvmti that rely on runtime agent loading. In the mobile/dev repos a minimal vm is supported which does include jvmti, but does not support INCLUDE_SERVICES for runtime agent loading.

The workaround in mobile/dev repos adds INCLUDE_SERVICE conditional compilation checks.


hotspot/src/share/vm/prims/jvmtiExport.hpp:
...

#if INCLUDE_SERVICES
  // attach support
  static jint load_agent_library(const char *agent, const char *absParam, const char *options, outputStream* out) NOT_JVMTI_RETURN_(JNI_ERR);
  static jint load_agent_library(AttachOperation* op, outputStream* out) NOT_JVMTI_RETURN_(JNI_ERR);
#endif // INCLUDE_SERVICES


hotspot/src/share/vm/services/diagnosticCommand.cpp: proposed

void JVMTIAgentLoadDCmd::execute(DCmdSource source, TRAPS) {

  if (_libpath.value() == NULL) {
    output()->print_cr("JVMTI.agent_load dcmd needs library path.");
    return;
  }

  char *suffix = strrchr(_libpath.value(), '.');
  bool is_java_agent = (suffix != NULL) && (strncmp(".jar", suffix, 4) == 0);

#if INCLUDE_SERVICES
  if (is_java_agent) {
    if (_option.value() == NULL) {
      JvmtiExport::load_agent_library("instrument", "false",
                                      _libpath.value(), output());
    } else {
      size_t opt_len = strlen(_libpath.value()) + strlen(_option.value()) + 2;
      if (opt_len > 4096) {
        output()->print_cr("JVMTI agent attach failed: Options is too long.");
        return;
      }

      char *opt = (char *)os::malloc(opt_len, mtInternal);
      if (opt == NULL) {
        output()->print_cr("JVMTI agent attach failed: "
                           "Could not allocate %zu bytes for argument.",
                           opt_len);
        return;
      }

      jio_snprintf(opt, opt_len, "%s=%s", _libpath.value(), _option.value());
      JvmtiExport::load_agent_library("instrument", "false", opt, output());

      os::free(opt);
    }
  } else {
    JvmtiExport::load_agent_library(_libpath.value(), "true",
                                    _option.value(), output());
  }
#endif
}