void plugin_load(char *name, char *args, plugintype_t type)
{
plugin_t *plugin, *temp;
if (plugins != NULL) {
temp = plugins;
while (temp != NULL) {
if (!strcmp(name, temp->name)) {
BX_PANIC(("plugin '%s' already loaded", name));
return;
}
temp = temp->next;
}
}
plugin = (plugin_t *)malloc (sizeof(plugin_t));
if (!plugin)
{
BX_PANIC(("malloc plugin_t failed"));
}
plugin->type = type;
plugin->name = name;
plugin->args = args;
plugin->initialized = 0;
char plugin_filename[BX_PATHNAME_LEN], buf[BX_PATHNAME_LEN];
sprintf(buf, PLUGIN_FILENAME_FORMAT, name);
sprintf(plugin_filename, "%s%s", PLUGIN_PATH, buf);
// Set context so that any devices that the plugin registers will
// be able to see which plugin created them. The registration will
// be called from either dlopen (global constructors) or plugin_init.
BX_ASSERT(current_plugin_context == NULL);
current_plugin_context = plugin;
#if defined(_MSC_VER)
plugin->handle = LoadLibrary(plugin_filename);
BX_INFO(("DLL handle is %p", plugin->handle));
if (!plugin->handle)
{
current_plugin_context = NULL;
BX_PANIC(("LoadLibrary failed for module '%s': error=%d", name, GetLastError()));
free(plugin);
return;
}
#else
plugin->handle = lt_dlopen (plugin_filename);
BX_INFO(("lt_dlhandle is %p", plugin->handle));
if (!plugin->handle)
{
current_plugin_context = NULL;
BX_PANIC(("dlopen failed for module '%s': %s", name, lt_dlerror ()));
free(plugin);
return;
}
#endif
if (type != PLUGTYPE_USER) {
sprintf(buf, PLUGIN_INIT_FMT_STRING, name);
} else {
sprintf(buf, PLUGIN_INIT_FMT_STRING, "user");
}
#if defined(_MSC_VER)
plugin->plugin_init = (plugin_init_t) GetProcAddress(plugin->handle, buf);
if (plugin->plugin_init == NULL) {
pluginlog->panic("could not find plugin_init: error=%d", GetLastError());
plugin_abort ();
}
#else
plugin->plugin_init = (plugin_init_t) lt_dlsym (plugin->handle, buf);
if (plugin->plugin_init == NULL) {
pluginlog->panic("could not find plugin_init: %s", lt_dlerror ());
plugin_abort ();
}
#endif
if (type != PLUGTYPE_USER) {
sprintf(buf, PLUGIN_FINI_FMT_STRING, name);
} else {
sprintf(buf, PLUGIN_FINI_FMT_STRING, "user");
}
#if defined(_MSC_VER)
plugin->plugin_fini = (plugin_fini_t) GetProcAddress(plugin->handle, buf);
if (plugin->plugin_fini == NULL) {
pluginlog->panic("could not find plugin_fini: error=%d", GetLastError());
plugin_abort ();
}
#else
plugin->plugin_fini = (plugin_fini_t) lt_dlsym (plugin->handle, buf);
if (plugin->plugin_fini == NULL) {
pluginlog->panic("could not find plugin_fini: %s", lt_dlerror ());
plugin_abort();
}
#endif
pluginlog->info("loaded plugin %s",plugin_filename);
/* Insert plugin at the _end_ of the plugin linked list. */
plugin->next = NULL;
if (!plugins)
{
/* Empty list, this become the first entry. */
plugins = plugin;
}
else
{
/* Non-empty list. Add to end. */
temp = plugins;
while (temp->next)
temp = temp->next;
temp->next = plugin;
}
plugin_init_one(plugin);
// check that context didn't change. This should only happen if we
// need a reentrant plugin_load.
BX_ASSERT(current_plugin_context == plugin);
current_plugin_context = NULL;
}
void plugin_load(char *name, char *args, plugintype_t type)
{
plugin_t *plugin;
plugin = (plugin_t *)malloc (sizeof(plugin_t));
if (!plugin)
{
BX_PANIC(("malloc plugin_t failed"));
}
plugin->type = type;
plugin->name = name;
plugin->args = args;
plugin->initialized = 0;
char plugin_filename[BX_PATHNAME_LEN], buf[BX_PATHNAME_LEN];
sprintf(buf, PLUGIN_FILENAME_FORMAT, name);
sprintf(plugin_filename, "%s%s", PLUGIN_PATH, buf);
// Set context so that any devices that the plugin registers will
// be able to see which plugin created them. The registration will
// be called from either dlopen (global constructors) or plugin_init.
BX_ASSERT (current_plugin_context == NULL);
current_plugin_context = plugin;
plugin->handle = lt_dlopen (plugin_filename);
BX_INFO (("lt_dlhandle is %p", plugin->handle));
if (!plugin->handle)
{
current_plugin_context = NULL;
BX_PANIC (("dlopen failed for module '%s': %s", name, lt_dlerror ()));
free (plugin);
return;
}
sprintf(buf, PLUGIN_INIT_FMT_STRING, name);
plugin->plugin_init =
(int (*)(struct _plugin_t *, enum plugintype_t, int, char *[])) /* monster typecast */
lt_dlsym (plugin->handle, buf);
if (plugin->plugin_init == NULL) {
pluginlog->panic("could not find plugin_init: %s", lt_dlerror ());
plugin_abort ();
}
sprintf(buf, PLUGIN_FINI_FMT_STRING, name);
plugin->plugin_fini = (void (*)(void)) lt_dlsym (plugin->handle, buf);
if (plugin->plugin_init == NULL) {
pluginlog->panic("could not find plugin_fini: %s", lt_dlerror ());
plugin_abort ();
}
pluginlog->info("loaded plugin %s",plugin_filename);
/* Insert plugin at the _end_ of the plugin linked list. */
plugin->next = NULL;
if (!plugins)
{
/* Empty list, this become the first entry. */
plugins = plugin;
}
else
{
/* Non-empty list. Add to end. */
plugin_t *temp = plugins;
while (temp->next)
temp = temp->next;
temp->next = plugin;
}
plugin_init_one(plugin);
// check that context didn't change. This should only happen if we
// need a reentrant plugin_load.
BX_ASSERT (current_plugin_context == plugin);
current_plugin_context = NULL;
return;
}
