c-opts.c: Include plugin.h.

[gcc/c-family]
2013-11-19  Basile Starynkevitch  <basile@starynkevitch.net>

        * c-opts.c: Include plugin.h.
        (cb_file_change): Invoke plugin event PLUGIN_INCLUDE_FILE.

[gcc/]
2013-11-19  Basile Starynkevitch  <basile@starynkevitch.net>

        * plugin.def (PLUGIN_INCLUDE_FILE): New event, invoked in 
        cb_file_change.

From-SVN: r205038

gcc/ChangeLog

+2013-11-19  Basile Starynkevitch  <basile@starynkevitch.net>
+
+        * plugin.def (PLUGIN_INCLUDE_FILE): New event, invoked in 
+        cb_file_change.
+
 2013-11-19  Peter Bergner  <bergner@vnet.ibm.com>
 
 	* loop-doloop.c (doloop_optimize_loops): Remove unused

gcc/c-family/ChangeLog

+2013-11-19  Basile Starynkevitch  <basile@starynkevitch.net>
+
+        * c-opts.c: Include plugin.h.
+        (cb_file_change): Invoke plugin event PLUGIN_INCLUDE_FILE.
+
 2013-11-19  Marek Polacek  <polacek@redhat.com>
 
 	* c-ubsan.c (ubsan_instrument_division): Adjust ubsan_create_data

gcc/c-family/c-opts.c

@@ -34,6 +34,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "debug.h"		/* For debug_hooks.  */
 #include "opts.h"
 #include "options.h"
+#include "plugin.h"		/* For PLUGIN_INCLUDE_FILE event.  */
 #include "mkdeps.h"
 #include "c-target.h"
 #include "tm.h"			/* For BYTES_BIG_ENDIAN,
@@ -1397,6 +1398,17 @@ cb_file_change (cpp_reader * ARG_UNUSED (pfile),
   else
     fe_file_change (new_map);
 
+  if (new_map 
+      && (new_map->reason == LC_ENTER || new_map->reason == LC_RENAME))
+    {
+      /* Signal to plugins that a file is included.  This could happen
+	 several times with the same file path, e.g. because of
+	 several '#include' or '#line' directives...  */
+      invoke_plugin_callbacks 
+	(PLUGIN_INCLUDE_FILE,
+	 const_cast<char*> (ORDINARY_MAP_FILE_NAME (new_map)));
+    }
+
   if (new_map == 0 || (new_map->reason == LC_LEAVE && MAIN_FILE_P (new_map)))
     {
       pch_cpp_save_state ();

gcc/plugin.def

@@ -92,6 +92,12 @@ DEFEVENT (PLUGIN_EARLY_GIMPLE_PASSES_END)
 /* Called when a pass is first instantiated.  */
 DEFEVENT (PLUGIN_NEW_PASS)
 
+/* Called when a file is #include-d or given thru #line directive.
+   Could happen many times.  The event data is the included file path,
+   as a const char* pointer.  */
+DEFEVENT (PLUGIN_INCLUDE_FILE)
+
+
 /* After the hard-coded events above, plugins can dynamically allocate events
    at run time.
    PLUGIN_EVENT_FIRST_DYNAMIC only appears as last enum element.  */