#include "intl.h"
#include "plugin.h"
#include "timevar.h"
+#ifdef ENABLE_PLUGIN
+#include "plugin-version.h"
+#endif
/* Event names as strings. Keep in sync with enum plugin_event. */
const char *plugin_event_name[] =
"PLUGIN_FINISH_UNIT",
"PLUGIN_CXX_CP_PRE_GENERICIZE",
"PLUGIN_FINISH",
+ "PLUGIN_INFO",
"PLUGIN_EVENT_LAST"
};
const char *full_name;
int argc;
struct plugin_argument *argv;
+ const char *version;
+ const char *help;
};
/* Hash table for the plugin_name_args objects created during command-line
}
+/* Register additional plugin information. NAME is the name passed to
+ plugin_init. INFO is the information that should be registered. */
+
+static void
+register_plugin_info (const char* name, struct plugin_info *info)
+{
+ void **slot = htab_find_slot (plugin_name_args_tab, name, NO_INSERT);
+ struct plugin_name_args *plugin = (struct plugin_name_args *) *slot;
+ plugin->version = info->version;
+ plugin->help = info->help;
+}
+
/* Called from the plugin's initialization code. Register a single callback.
This function can be called multiple times.
case PLUGIN_PASS_MANAGER_SETUP:
register_pass (plugin_name, (struct plugin_pass *) user_data);
break;
+ case PLUGIN_INFO:
+ register_plugin_info (plugin_name, (struct plugin_info *) user_data);
+ break;
case PLUGIN_FINISH_TYPE:
case PLUGIN_FINISH_UNIT:
case PLUGIN_CXX_CP_PRE_GENERICIZE:
#define PTR_UNION_AS_VOID_PTR(NAME) (NAME._q)
#define PTR_UNION_AS_CAST_PTR(NAME) (NAME._nq)
-/* Routine to dlopen and initialize one plugin. This function is passed to
- (and called by) the hash table traverse routine. Return 1 for the
- htab_traverse to continue scan, 0 to stop.
+/* Try to initialize PLUGIN. Return true if successful. */
- SLOT - slot of the hash table element
- INFO - auxiliary pointer handed to hash table traverse routine
- (unused in this function) */
-
-static int
-init_one_plugin (void **slot, void * ARG_UNUSED (info))
+static bool
+try_init_one_plugin (struct plugin_name_args *plugin)
{
- struct plugin_name_args *plugin = (struct plugin_name_args *) *slot;
void *dl_handle;
plugin_init_func plugin_init;
char *err;
if (!dl_handle)
{
error ("Cannot load plugin %s\n%s", plugin->full_name, dlerror ());
- return 1;
+ return false;
}
/* Clear any existing error. */
{
error ("Cannot find %s in plugin %s\n%s", str_plugin_init_func_name,
plugin->full_name, err);
- return 1;
+ return false;
}
/* Call the plugin-provided initialization routine with the arguments. */
- if ((*plugin_init) (plugin->base_name, plugin->argc, plugin->argv))
+ if ((*plugin_init) (plugin->base_name, &gcc_version, plugin->argc,
+ plugin->argv))
{
error ("Fail to initialize plugin %s", plugin->full_name);
- return 1;
+ return false;
}
- /* We can now delete the plugin_name_args object as it will no longer
- be used. Note that base_name and argv fields (both of which were also
- dynamically allocated) are not freed as they could still be used by
- the plugin code. */
- XDELETE (plugin);
+ return true;
+}
+
+
+/* Routine to dlopen and initialize one plugin. This function is passed to
+ (and called by) the hash table traverse routine. Return 1 for the
+ htab_traverse to continue scan, 0 to stop.
+
+ SLOT - slot of the hash table element
+ INFO - auxiliary pointer handed to hash table traverse routine
+ (unused in this function) */
+static int
+init_one_plugin (void **slot, void * ARG_UNUSED (info))
+{
+ struct plugin_name_args *plugin = (struct plugin_name_args *) *slot;
+ bool ok = try_init_one_plugin (plugin);
+ if (!ok)
+ {
+ htab_remove_elt (plugin_name_args_tab, plugin->base_name);
+ XDELETE (plugin);
+ }
return 1;
}
+
#endif /* ENABLE_PLUGIN */
/* Main plugin initialization function. Called from compile_file() in
htab_traverse_noresize (plugin_name_args_tab, init_one_plugin, NULL);
#endif
+ timevar_pop (TV_PLUGIN_INIT);
+}
+
+/* Release memory used by one plugin. */
+
+static int
+finalize_one_plugin (void **slot, void * ARG_UNUSED (info))
+{
+ struct plugin_name_args *plugin = (struct plugin_name_args *) *slot;
+ XDELETE (plugin);
+ return 1;
+}
+
+/* Free memory allocated by the plugin system. */
+
+void
+finalize_plugins (void)
+{
+ if (!plugin_name_args_tab)
+ return;
+
+ /* We can now delete the plugin_name_args object as it will no longer
+ be used. Note that base_name and argv fields (both of which were also
+ dynamically allocated) are not freed as they could still be used by
+ the plugin code. */
+
+ htab_traverse_noresize (plugin_name_args_tab, finalize_one_plugin, NULL);
+
/* PLUGIN_NAME_ARGS_TAB is no longer needed, just delete it. */
htab_delete (plugin_name_args_tab);
plugin_name_args_tab = NULL;
+}
- timevar_pop (TV_PLUGIN_INIT);
+/* Used to pass options to htab_traverse callbacks. */
+
+struct print_options
+{
+ FILE *file;
+ const char *indent;
+};
+
+/* Print the version of one plugin. */
+
+static int
+print_version_one_plugin (void **slot, void *data)
+{
+ struct print_options *opt = (struct print_options *) data;
+ struct plugin_name_args *plugin = (struct plugin_name_args *) *slot;
+ const char *version = plugin->version ? plugin->version : "Unknown version.";
+
+ fprintf (opt->file, " %s%s: %s\n", opt->indent, plugin->base_name, version);
+ return 1;
+}
+
+/* Print the version of each plugin. */
+
+void
+print_plugins_versions (FILE *file, const char *indent)
+{
+ struct print_options opt;
+ opt.file = file;
+ opt.indent = indent;
+ if (!plugin_name_args_tab || htab_elements (plugin_name_args_tab) == 0)
+ return;
+
+ fprintf (file, "%sVersions of loaded plugins:\n", indent);
+ htab_traverse_noresize (plugin_name_args_tab, print_version_one_plugin, &opt);
+}
+
+/* Print help for one plugin. SLOT is the hash table slot. DATA is the
+ argument to htab_traverse_noresize. */
+
+static int
+print_help_one_plugin (void **slot, void *data)
+{
+ struct print_options *opt = (struct print_options *) data;
+ struct plugin_name_args *plugin = (struct plugin_name_args *) *slot;
+ const char *help = plugin->help ? plugin->help : "No help available .";
+
+ char *dup = xstrdup (help);
+ char *p, *nl;
+ fprintf (opt->file, " %s%s:\n", opt->indent, plugin->base_name);
+
+ for (p = nl = dup; nl; p = nl)
+ {
+ nl = strchr (nl, '\n');
+ if (nl)
+ {
+ *nl = '\0';
+ nl++;
+ }
+ fprintf (opt->file, " %s %s\n", opt->indent, p);
+ }
+
+ free (dup);
+ return 1;
+}
+
+/* Print help for each plugin. The output goes to FILE and every line starts
+ with INDENT. */
+
+void
+print_plugins_help (FILE *file, const char *indent)
+{
+ struct print_options opt;
+ opt.file = file;
+ opt.indent = indent;
+ if (!plugin_name_args_tab || htab_elements (plugin_name_args_tab) == 0)
+ return;
+
+ fprintf (file, "%sHelp for the loaded plugins:\n", indent);
+ htab_traverse_noresize (plugin_name_args_tab, print_help_one_plugin, &opt);
}
{
dump_active_plugins (stderr);
}
+
+/* The default version check. Compares every field in VERSION. */
+
+bool
+plugin_default_version_check (struct plugin_gcc_version *gcc_version,
+ struct plugin_gcc_version *plugin_version)
+{
+ if (!gcc_version || !plugin_version)
+ return false;
+
+ if (strcmp (gcc_version->basever, plugin_version->basever))
+ return false;
+ if (strcmp (gcc_version->datestamp, plugin_version->datestamp))
+ return false;
+ if (strcmp (gcc_version->devphase, plugin_version->devphase))
+ return false;
+ if (strcmp (gcc_version->revision, plugin_version->revision))
+ return false;
+ if (strcmp (gcc_version->configuration_arguments,
+ plugin_version->configuration_arguments))
+ return false;
+ return true;
+}
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