Bootstrapped and tested on x86_64-unknown-linux-gnu, applied.
Richard.
2018-01-08 Richard Biener <rguent...@suse.de>
PR lto/83719
* dwarf2out.c (output_indirect_strings): Handle empty
skeleton_debug_str_hash.
(dwarf2out_early_finish): Index strings for -gsplit-dwarf.
* gcc.dg/lto/pr83719_0.c: New testcase.
Index: gcc/dwarf2out.c
===================================================================
--- gcc/dwarf2out.c (revision 256329)
+++ gcc/dwarf2out.c (working copy)
@@ -27795,8 +27795,9 @@ output_indirect_strings (void)
unsigned int offset = 0;
unsigned int cur_idx = 0;
- skeleton_debug_str_hash->traverse<enum dwarf_form,
- output_indirect_string> (DW_FORM_strp);
+ if (skeleton_debug_str_hash)
+ skeleton_debug_str_hash->traverse<enum dwarf_form,
+ output_indirect_string>
(DW_FORM_strp);
switch_to_section (debug_str_offsets_section);
debug_str_hash->traverse_noresize
@@ -30819,6 +30820,12 @@ dwarf2out_early_finish (const char *file
save_macinfo_strings ();
+ if (dwarf_split_debug_info)
+ {
+ unsigned int index = 0;
+ debug_str_hash->traverse_noresize<unsigned int *, index_string> (&index);
+ }
+
/* Output all of the compilation units. We put the main one last so that
the offsets are available to output_pubnames. */
for (limbo_die_node *node = limbo_die_list; node; node = node->next)
Index: gcc/testsuite/gcc.dg/lto/pr83719_0.c
===================================================================
--- gcc/testsuite/gcc.dg/lto/pr83719_0.c (nonexistent)
+++ gcc/testsuite/gcc.dg/lto/pr83719_0.c (working copy)
@@ -0,0 +1,4 @@
+/* { dg-lto-do assemble } */
+/* { dg-lto-options { { -flto -g -gsplit-dwarf } } } */
+
+/* Empty. */
