* config/tc-arm.c (make_mapping_symbol): Hanle the case

	that two mapping symbols have the same value.

	testsuite/
	* gas/arm/mapmisc.s: Add the test case for two mapping
	symbols having the same value.
	* gas/arm/mapmisc.d: Likewise.

1 files changed, 9 insertions, 1 deletions

diff --git a/gas/config/tc-arm.c b/gas/config/tc-arm.c
index 557b9f9..117812d 100644
--- a/gas/config/tc-arm.c
+++ b/gas/config/tc-arm.c
@@ -2500,7 +2500,15 @@ make_mapping_symbol (enum mstate state, valueT value, fragS *frag)
       frag->tc_frag_data.first_map = symbolP;
     }
   if (frag->tc_frag_data.last_map != NULL)
-    know (S_GET_VALUE (frag->tc_frag_data.last_map) < S_GET_VALUE (symbolP));
+    {
+      know (S_GET_VALUE (frag->tc_frag_data.last_map) <= S_GET_VALUE (symbolP));
+      /* If .fill or other data filling directive generates zero sized data,
+	 the mapping symbol for the following code will have the same value
+	 as the one generated for the data filling directive.  In this case,
+	 we replace the old symbol with the new one at the same address.  */
+      if (S_GET_VALUE (frag->tc_frag_data.last_map) == S_GET_VALUE (symbolP))
+	symbol_remove (frag->tc_frag_data.last_map, &symbol_rootP, &symbol_lastP);
+    }
   frag->tc_frag_data.last_map = symbolP;
 }