re PR debug/88878 (.debug_pubnames/types empty with -flto)

2019-02-27  Richard Biener  <rguenther@suse.de>

	PR debug/88878
	* dwarf2out.c (use_debug_types): Disable when in_lto_p.

From-SVN: r269253

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index b164b60..d77e7d2 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,10 @@
 2019-02-27  Richard Biener  <rguenther@suse.de>
 
+       PR debug/88878
+       * dwarf2out.c (use_debug_types): Disable when in_lto_p.
+
+2019-02-27  Richard Biener  <rguenther@suse.de>
+
        * passes.c (should_skip_pass_p): Do not skip cgraph-edge
        building.
 

diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c
index bba4eae..17be26f 100644 (file)
--- a/gcc/dwarf2out.c
+++ b/gcc/dwarf2out.c
@@ -2914,9 +2914,13 @@ const struct gcc_debug_hooks dwarf2_lineno_debug_hooks =
    separate comdat sections since the linker will then be able to
    remove duplicates.  But not all tools support .debug_types sections
    yet.  For Dwarf V5 or higher .debug_types doesn't exist any more,
-   it is DW_UT_type unit type in .debug_info section.  */
+   it is DW_UT_type unit type in .debug_info section.  For late LTO
+   debug there should be almost no types emitted so avoid enabling
+   -fdebug-types-section there.  */
 
-#define use_debug_types (dwarf_version >= 4 && flag_debug_types_section)
+#define use_debug_types (dwarf_version >= 4 \
+                        && flag_debug_types_section \
+                        && !in_lto_p)
 
 /* Various DIE's use offsets relative to the beginning of the
    .debug_info section to refer to each other.  */