re PR c/20239 (ICE on empty preprocessed input)

2005-09-09  Richard Guenther  <rguenther@suse.de>

	PR c/20239
	* cppinit.c (cpp_read_main_file): Avoid segfaulting on
	NULL pfile->map.

From-SVN: r104096

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 2b6912beb54ca4bd34c9434eda4d41e2dae005b4..3bb65ce47ef1ed9a6c730378baa56b6015f0bbd6 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2005-09-09  Richard Guenther  <rguenther@suse.de>
+
+       PR c/20239
+       * cppinit.c (cpp_read_main_file): Avoid segfaulting on
+       NULL pfile->map.
+
 2005-09-09  Richard Guenther  <rguenther@suse.de>
 
        PR c++/23624

diff --git a/gcc/cppinit.c b/gcc/cppinit.c
index ae30568699c5b44c8361f2cd80353f1b7dd1786e..b83b6f2528d5d833244ffe67ff9cab6a8cf7f813 100644 (file)
--- a/gcc/cppinit.c
+++ b/gcc/cppinit.c
@@ -477,6 +477,8 @@ cpp_read_main_file (cpp_reader *pfile, const char *fname)
   if (CPP_OPTION (pfile, preprocessed))
     {
       read_original_filename (pfile);
+      if (!pfile->map)
+       return NULL;
       fname = pfile->map->to_file;
     }
   return fname;