1999-09-11 Donn Terry <donn@interix.com>

	* config/obj-coff.c (add_lineno): Check that the line number is
	positive.

diff --git a/gas/ChangeLog b/gas/ChangeLog
index a042380..3650223 100644 (file)
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -5,6 +5,9 @@
 
 1999-09-11  Donn Terry  <donn@interix.com>
 
+       * config/obj-coff.c (add_lineno): Check that the line number is
+       positive.
+
        * config/atof-ieee.c (atof_ieee): Change what_kind to int.
        * config/atof-vax.c (flonum_gen2vax): Change format_letter to
        int.

diff --git a/gas/config/obj-coff.c b/gas/config/obj-coff.c
index f52732d..b06710a 100644 (file)
--- a/gas/config/obj-coff.c
+++ b/gas/config/obj-coff.c
@@ -434,6 +434,12 @@ add_lineno (frag, offset, num)
     {
       abort ();
     }
+  if (num <= 0) 
+    {
+      /* Zero is used as an end marker in the file.  */
+      as_bad (_("Line numbers must be positive integers\n"));
+      return;
+    }
   new_line->next = line_nos;
   new_line->frag = frag;
   new_line->l.line_number = num;