PR19896, Segmentation fault on bad input

	PR 19896
	* read.c (assign_symbol): Consume rest of line after an error
	rather than continuing to process the line.

diff --git a/gas/ChangeLog b/gas/ChangeLog
index dce15a1..6c76391 100644 (file)
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,9 @@
+2016-04-02  Alan Modra  <amodra@gmail.com>
+
+       PR 19896
+       * read.c (assign_symbol): Consume rest of line after an error
+       rather than continuing to process the line.
+
 2016-04-01  Andrew Burgess  <andrew.burgess@embecosm.com>
 
        * config/tc-arc.h (MAX_FLAG_NAME_LENGHT): Rename to...

diff --git a/gas/read.c b/gas/read.c
index 35d44c1..a940ff3 100644 (file)
--- a/gas/read.c
+++ b/gas/read.c
@@ -3255,7 +3255,9 @@ assign_symbol (char *name, int mode)
          && !S_CAN_BE_REDEFINED (symbolP))
        {
          as_bad (_("symbol `%s' is already defined"), name);
-         symbolP = symbol_clone (symbolP, 0);
+         ignore_rest_of_line ();
+         input_line_pointer--;
+         return;
        }
       /* If the symbol is volatile, copy the symbol and replace the
         original with the copy, so that previous uses of the symbol will