binutils/ld/plugin.c

32 #include "plugin-api.h"
33 #include "../bfd/plugin.h"
34 #include "plugin.h"
56 /* Report plugin symbols.  */
61    plugin.  For cosmetic use only; appears in maps, crefs etc.  */
62 #define IRONLY_SUFFIX " (symbol from plugin)"
64 /* Stores a single argument passed to a plugin.  */
71 /* Holds all details of a single plugin.  */
72 typedef struct plugin
75   struct plugin *next;
76   /* The argument string given to --plugin.  */
80   /* The list of argument string given to --plugin-opt.  */
84   /* The plugin's event handlers.  */
118 /* The last plugin added to the list, for receiving args.  */
121 /* The tail of the arg chain of the last plugin added to the list.  */
124 /* The plugin which is currently having a callback executed.  */
127 /* Last plugin to cause an error, if any.  */
133 /* Original linker callbacks, and the plugin version.  */
137 /* Set at all symbols read time, to avoid recursively offering the plugin
214 set_plugin_error (const char *plugin)
216   error_plugin = plugin;
227 /* Return name of plugin which caused an error if any.  */
231   return error_plugin ? error_plugin : _("<no plugin>");
234 /* Handle -plugin arg: find and load plugin, or return error.  */
236 plugin_opt_plugin (const char *plugin)
243   newplug->name = plugin;
244   newplug->dlhandle = dlopen (plugin, RTLD_NOW);
246     einfo (_("%P%F: %s: error loading plugin: %s\n"), plugin, dlerror ());
248   /* Check if plugin has been loaded already.  */
253 	  einfo (_("%P: %s: duplicated plugin\n"), plugin);
264   /* Record it as current plugin for receiving args.  */
269 /* Accumulate option arguments for last-loaded plugin, or return
277     return set_plugin_error (_("<no plugin>"));
483 /* Add symbols from a plugin-claimed input file.  */
646 	 what visibility the plugin would have liked to apply when it first
667 /* Get the symbol resolution info for a plugin-claimed input file.  */
691 	  /* The plugin is called to claim symbols in an archive element
724 	  einfo ("%P%F: %s: plugin symbol table corrupt (sym type %d)\n",
804 /* Add a new (real) input file generated by a plugin.  */
819 /* Add a new (real) library required by a plugin.  */
844 /* Issue a diagnostic message from a plugin.  */
963 /* Append the per-plugin args list and trailing LDPT_NULL to tv.  */
965 set_tv_plugin_args (plugin_t *plugin, struct ld_plugin_tv *tv)
967   plugin_arg_t *arg = plugin->args;
1015         einfo (_("%P%F: %s: error loading plugin: %s\n"),
1022 	einfo (_("%P%F: %s: plugin error: %d\n"), curplug->name, rv);
1026   /* Since plugin(s) inited ok, assume they're going to want symbol
1108      the plugin may want to add.  */
1113     einfo (_("%P%F: plugin failed to allocate memory for input: %s\n"),
1127   /* The plugin API expects that the file descriptor won't be closed
1146     einfo (_("%P%F: %s: plugin reported error claiming file\n"),
1151       /* FIXME: fd belongs to us, not the plugin.  GCC plugin, which
1153 	 BFD plugin target vector.  Since GCC plugin doesn't call
1154 	 release_input_file, we close it here.  LLVM plugin, which
1156 	 release_input_file after it is done, uses BFD plugin target
1157 	 vector.  This scheme doesn't work when a plugin needs fd and
1158 	 doesn't use BFD plugin target vector neither.  */
1175 	  /* If plugin didn't claim the file, unmap the buffer.  */
1187       /* If plugin didn't claim the file, we don't need the dummy bfd.
1256 	    info_msg (_("%P: %s: error in plugin cleanup: %d (ignored)\n"),