[Midnightbsd-cvs] src [8568] trunk/contrib/gcc4/dwarf2out.c: avoid generating negative values

[laffer1 at midnightbsd.org]

Revision: 8568
          http://svnweb.midnightbsd.org/src/?rev=8568
Author:   laffer1
Date:     2016-09-19 11:24:05 -0400 (Mon, 19 Sep 2016)
Log Message:
-----------
avoid generating negative values

Modified Paths:
--------------
    trunk/contrib/gcc4/dwarf2out.c

Modified: trunk/contrib/gcc4/dwarf2out.c
===================================================================
--- trunk/contrib/gcc4/dwarf2out.c	2016-09-19 15:23:17 UTC (rev 8567)
+++ trunk/contrib/gcc4/dwarf2out.c	2016-09-19 15:24:05 UTC (rev 8568)
@@ -10812,9 +10812,9 @@
 
   /* Note that `size' might be -1 when we get to this point.  If it is, that
      indicates that the byte size of the entity in question is variable.  We
-     have no good way of expressing this fact in Dwarf at the present time,
-     so just let the -1 pass on through.  */
-  add_AT_unsigned (die, DW_AT_byte_size, size);
+     have no good way of expressing this fact in Dwarf at the present time.
+     GCC/35998: Avoid passing negative sizes to Dtrace and gdb.  */
+  add_AT_unsigned (die, DW_AT_byte_size, (size != (unsigned)-1 ? size : 0));
 }
 
 /* For a FIELD_DECL node which represents a bit-field, output an attribute