2017-06-07 Eric Christopher <echristo@gmail.com>

	* aarch64.cc (maybe_apply_stub): Add debug logging for looking
	up stubs to undefined symbols and early return rather than
	fail to look them up.
	(scan_reloc_for_stub): Add debug logging for no stub creation
	for undefined symbols.

diff --git a/gold/ChangeLog b/gold/ChangeLog
index 1f7d01e50a74c5278c41fa57ba1d72a7beaa8de9..e3c4472f35758d8e4e2c742fe428847ee3a270f9 100644 (file)
--- a/gold/ChangeLog
+++ b/gold/ChangeLog
@@ -1,3 +1,11 @@
+2017-06-07  Eric Christopher  <echristo@gmail.com>
+
+       * aarch64.cc (maybe_apply_stub): Add debug logging for looking
+       up stubs to undefined symbols and early return rather than
+       fail to look them up.
+       (scan_reloc_for_stub): Add debug logging for no stub creation
+       for undefined symbols.
+
 2017-05-23  Alan Modra  <amodra@gmail.com>
 
        PR 21503

diff --git a/gold/aarch64.cc b/gold/aarch64.cc
index c9bb6b730d3097d380c52cbb8eee6b53f270849b..247098667543b92686c8c1cb588a22b4ea8b8dc1 100644 (file)
--- a/gold/aarch64.cc
+++ b/gold/aarch64.cc
@@ -3746,8 +3746,13 @@ Target_aarch64<size, big_endian>::scan_reloc_for_stub(
          psymval = &symval;
        }
       else if (gsym->is_undefined())
-       // There is no need to generate a stub symbol is undefined.
-       return;
+       {
+         // There is no need to generate a stub symbol is undefined.
+          gold_debug(DEBUG_TARGET,
+                     "stub: not creating a stub for undefined symbol %s in file %s",
+                     gsym->name(), aarch64_relobj->name().c_str());
+          return;
+       }
     }
 
   // Get the symbol value.
@@ -5405,6 +5410,15 @@ maybe_apply_stub(unsigned int r_type,
 
   const The_aarch64_relobj* aarch64_relobj =
       static_cast<const The_aarch64_relobj*>(object);
+  // We don't create stubs for undefined symbols so don't look for one.
+  if (gsym && gsym->is_undefined())
+    {
+      gold_debug(DEBUG_TARGET,
+                "stub: looking for a stub for undefined symbol %s in file %s",
+                gsym->name(), aarch64_relobj->name().c_str());
+      return false;
+    }
+
   The_stub_table* stub_table = aarch64_relobj->stub_table(relinfo->data_shndx);
   gold_assert(stub_table != NULL);