------- Comment #1 from kargl at gcc dot gnu dot org 2010-04-22 21:08 -------
It in fact appears that -fresolution is not handled properly.
/home/sgk/work/4x/bin/gcc -flto -fresolution -o z h.o m.o
resolution_file_name = h.o
where I instrumented lto.c to see if resolution_file_name = -o
note h.o isn't in the expected format and triggers the ICE.
In lto.c, these lines should probably be changed to
a fatal_error.
troutmask:sgk[274] /home/sgk/work/4x/bin/gcc -flto -fresolution h.o m.o
lto1: fatal error: symbol resolution file h.o appears mangled
compilation terminated.
Index: lto/lto.c
===================================================================
--- lto/lto.c (revision 158649)
+++ lto/lto.c (working copy)
@@ -1794,7 +1794,9 @@ read_cgraph_and_symbols (unsigned nfiles
xstrerror (errno));
t = fscanf (resolution, "%u", &num_objects);
- gcc_assert (t == 1);
+ if (t != 1)
+ fatal_error ("symbol resolution file %s appears mangled",
+ resolution_file_name);
/* True, since the plugin splits the archives. */
gcc_assert (num_objects == nfiles);
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43857
