ld/plugin.h

   1 /* Plugin control for the GNU linker.
   2    Copyright 2010, 2011 Free Software Foundation, Inc.
   3
   4    This file is part of the GNU Binutils.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software
  18    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  19    MA 02110-1301, USA.  */
  20
  21 #ifndef GLD_PLUGIN_H
  22 #define GLD_PLUGIN_H
  23
  24 /* Report plugin symbols.  */
  25 extern bfd_boolean report_plugin_symbols;
  26
  27 /* Set at all symbols read time, to avoid recursively offering the plugin
  28    its own newly-added input files and libs to claim.  */
  29 extern bfd_boolean no_more_claiming;
  30
  31 /* This is the only forward declaration we need to avoid having
  32    to include the plugin-api.h header in order to use this file.  */
  33 struct ld_plugin_input_file;
  34
  35 /* Handle -plugin arg: find and load plugin, or return error.  */
  36 extern int plugin_opt_plugin (const char *plugin);
  37
  38 /* Accumulate option arguments for last-loaded plugin, or return
  39    error if none.  */
  40 extern int plugin_opt_plugin_arg (const char *arg);
  41
  42 /* Return true if any plugins are active this run.  Only valid
  43    after options have been processed.  */
  44 extern bfd_boolean plugin_active_plugins_p (void);
  45
  46 /* Load up and initialise all plugins after argument parsing.  */
  47 extern int plugin_load_plugins (void);
  48
  49 /* Return name of plugin which caused an error in any of the above.  */
  50 extern const char *plugin_error_plugin (void);
  51
  52 /* Call 'claim file' hook for all plugins.  */
  53 extern void plugin_maybe_claim (struct ld_plugin_input_file *,
  54                                 lang_input_statement_type *);
  55
  56 /* Call 'all symbols read' hook for all plugins.  */
  57 extern int plugin_call_all_symbols_read (void);
  58
  59 /* Call 'cleanup' hook for all plugins at exit.  */
  60 extern void plugin_call_cleanup (void);
  61
  62 /* Generate a dummy BFD to represent an IR file, for any callers of
  63    plugin_call_claim_file to use as the handle in the ld_plugin_input_file
  64    struct that they build to pass in.  The BFD is initially writable, so
  65    that symbols can be added to it; it must be made readable after the
  66    add_symbols hook has been called so that it can be read when linking.  */
  67 extern bfd *plugin_get_ir_dummy_bfd (const char *name, bfd *template);
  68
  69 /* Return true if bfd is a dynamic library that should be reloaded.  */
  70 extern bfd_boolean plugin_should_reload (bfd *);
  71
  72 #endif /* !def GLD_PLUGIN_H */