[Bug bootstrap/41404] expr.c undefined reference while linking jc1

["davek at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #11 from davek at gcc dot gnu dot org  2009-09-19 11:17 -------
(In reply to comment #10)
> Actually, I think it is wrong how mem_loc_descriptor handles CONST_STRING, I'm
> afraid we can't do anything for it, unless we can find such string in the
> rodata section of the compilation unit.

So rather than write code to index and search all the strings emitted during
compilation, I'm giving this a try:

Index: dwarf2out.c
===================================================================
--- dwarf2out.c (revision 151860)
+++ dwarf2out.c (working copy)
@@ -11598,8 +11598,8 @@ mem_loc_descriptor (rtx rtl, enum machine_mode mod
       break;

     case CONST_STRING:
-      rtl = get_debug_string_label (XSTR (rtl, 0));
-      goto symref;
+      /* These can't easily be tracked, see PR41404.  */
+      break;

     default:
 #ifdef ENABLE_CHECKING

As might be expected, there is no longer an undefined reference to any
debuginfo string in the generated source after this.  Shall I take it for a
full bootstrap and test?


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41404