cpp crash with gcc-2.95.2 and cpplib
Wed Dec 13 01:39:00 GMT 2000
Neil Booth <email@example.com> writes:
> Niels M=f6ller wrote:-
> > should help. But perhaps it's better to change read_name_map to return
> > NULL on error?
> Yes, that looks like it. Could you try this patch? If it works for
> you, I'll commit it.
It doesn't quite work. But if I add some more initialization,
--- /usr/local/src/prc-tools-2.0/gcc/gcc/cppfiles.c~ Fri Dec 8 15:21:39 2000
+++ /usr/local/src/prc-tools-2.0/gcc/gcc/cppfiles.c Wed Dec 13 10:27:46 2000
@@ -481,16 +481,17 @@
map_list_ptr =3d ((struct file_name_map_list *)
xmalloc (sizeof (struct file_name_map_list)));
map_list_ptr->map_list_name =3d xstrdup (dirname);
+ map_list_ptr->map_list_map =3d NULL;
name =3d (char *) alloca (strlen (dirname) + strlen (FILE_NAME_MAP_FILE) + 2);
strcpy (name, dirname);
strcat (name, "/");
it seems to work.
But I'm wondering why -1 was used in the first place. Perhaps storing
-1 in loc->name_map is a way to cache negative results, "I already
looked for header.gcc here, and there's no point trying again"? If
so, the change will cause a lot of unnesseccary syscalls.
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