------- Comment #65 from burnus at gcc dot gnu dot org 2010-07-24 13:08 -------
(In reply to comment #64)
> Failure with -fwhole-file:
> /tmp/ccN7F1tB.o: In function `__mod_MOD_four':
> test.f90:(.text+0x3): undefined reference to `one_'
If one sets a breakpoint in gfc_create_function_decl,
gfc_generate_function_code, and gfc_get_extern_function_decl one has:
...
gfc_get_extern_function_decl "two"
<--- (1) --->
gfc_generate_function_code "two"
...
In between those functions calls, the gfc_global_ns_list changes from:
"two"->"one" to "two"->"MAIN__".
If I add the following patch, it works with the reduced test case and seems to
also work with the one-file CP2K. I wonder why this problem did not show up
before. It seems to be pretty obvious and not restricted to -fwhole-file
(though, the chance of miscompilation is much increased with -fwhole-file).
Index: parse.c
===================================================================
--- parse.c (Revision 162498)
+++ parse.c (Arbeitskopie)
@@ -4414,7 +4414,11 @@
later and all their interfaces resolved. */ gfc_current_ns->code =
s.head;
if (next)
- next->sibling = gfc_current_ns;
+ {
+ for (; next->sibling; next = next->sibling)
+ ;
+ next->sibling = gfc_current_ns;
+ }
else
gfc_global_ns_list = gfc_current_ns;
--
burnus at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |burnus at gcc dot gnu dot
|dot org |org
Status|NEW |ASSIGNED
Last reconfirmed|2009-12-09 11:50:57 |2010-07-24 13:08:14
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40011
