diff --git a/gdb/dwarf2loc.h b/gdb/dwarf2loc.h
index e9d06a3..0f2af3c 100644
--- a/gdb/dwarf2loc.h
+++ b/gdb/dwarf2loc.h
@@ -97,7 +97,7 @@ struct dwarf2_locexpr_baton
 
   /* Length of the location expression.  For optimized out expressions it is
      zero.  */
-  unsigned long size;
+  size_t size;
 
   /* The compilation unit containing the symbol whose location
      we're computing.  */
@@ -114,7 +114,7 @@ struct dwarf2_loclist_baton
   const gdb_byte *data;
 
   /* Length of the location list.  */
-  unsigned long size;
+  size_t size;
 
   /* The compilation unit containing the symbol whose location
      we're computing.  */
diff --git a/gdb/dwarf2read.c b/gdb/dwarf2read.c
index 187d1e8..6f671c7 100644
--- a/gdb/dwarf2read.c
+++ b/gdb/dwarf2read.c
@@ -887,7 +887,7 @@ struct die_info
 /* Blocks are a bunch of untyped bytes.  */
 struct dwarf_block
   {
-    unsigned int size;
+    size_t size;
 
     /* Valid only if SIZE is not zero.  */
     gdb_byte *data;
@@ -15074,12 +15074,12 @@ dump_die_shallow (struct ui_file *f, int indent, struct die_info *die)
 	case DW_FORM_block4:
 	case DW_FORM_block:
 	case DW_FORM_block1:
-	  fprintf_unfiltered (f, "block: size %d",
-			      DW_BLOCK (&die->attrs[i])->size);
+	  fprintf_unfiltered (f, "block: size %s",
+			      pulongest (DW_BLOCK (&die->attrs[i])->size));
 	  break;
 	case DW_FORM_exprloc:
-	  fprintf_unfiltered (f, "expression: size %u",
-			      DW_BLOCK (&die->attrs[i])->size);
+	  fprintf_unfiltered (f, "expression: size %s",
+			      pulongest (DW_BLOCK (&die->attrs[i])->size));
 	  break;
 	case DW_FORM_ref_addr:
 	  fprintf_unfiltered (f, "ref address: ");