Subversion Repositories openrisc

/* Demonstrates how to add custom pragmas */

#include "gcc-plugin.h"

#include <stdlib.h>

#include "config.h"

#include "system.h"

#include "coretypes.h"

#include "tm.h"

#include "rtl.h"

#include "tree.h"

#include "function.h"

#include "c-family/c-pragma.h"

#include "cpplib.h"

#include "tree-pass.h"

#include "intl.h"

#include "toplev.h"

#include "diagnostic.h"

int plugin_is_GPL_compatible;

/* handler of #pragma GCCPLUGIN sayhello "message" is quite similar to

   handler of #pragma GCC message...*/

static void

handle_pragma_sayhello (cpp_reader *dummy)

{

  tree message = 0;

  if (pragma_lex (&message) != CPP_STRING)

    {

      warning (OPT_Wpragmas, "%<#pragma GCCPLUGIN sayhello%>  is not a string");

      return;

    }

  if (TREE_STRING_LENGTH (message) > 1)

    if (cfun)

      warning (OPT_Wpragmas,

              "%<pragma GCCPLUGIN sayhello%> from function %qE: %s",

              cfun->decl, TREE_STRING_POINTER (message));

      else

        warning (OPT_Wpragmas,

            "%<pragma GCCPLUGIN sayhello%> outside of function: %s",

            TREE_STRING_POINTER (message));

}

/* Plugin callback called during pragma registration */

static void

register_my_pragma (void *event_data, void *data)

{

  warning (0, G_("Callback to register pragmas"));

  c_register_pragma ("GCCPLUGIN", "sayhello", handle_pragma_sayhello);

}

int

plugin_init (struct plugin_name_args *plugin_info,

             struct plugin_gcc_version *version)

{

  const char *plugin_name = plugin_info->base_name;

  register_callback (plugin_name, PLUGIN_PRAGMAS, register_my_pragma, NULL);

  return 0;

}