* valops.c (value_assign): Make copy of internal variable value

	before returning it as a new value, since it is owned by the
	internal variable and will be freed along with it.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 5da013388032508d669aff1f4b515ce8daca4da4..2af78d1b7a76212a49d15bfc364989cbe25cb8e8 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,9 @@
+Thu Mar 28 06:51:26 1996  Fred Fish  <fnf@cygnus.com>
+
+       * valops.c (value_assign): Make copy of internal variable value
+       before returning it as a new value, since it is owned by the 
+       internal variable and will be freed along with it.
+
 Wed Mar 27 08:36:17 1996  Jeffrey A Law  (law@cygnus.com)
 
        * From Peter Schauer.

diff --git a/gdb/valops.c b/gdb/valops.c
index e58f23378f89e03690ec1c45c5e0a59663b239e2..83d06bbd83995a94e1bf8d935ff8d7633b693d34 100644 (file)
--- a/gdb/valops.c
+++ b/gdb/valops.c
@@ -32,6 +32,15 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 #include <errno.h>
 #include "gdb_string.h"
 
+/* Default to coercing float to double in function calls only when there is
+   no prototype.  Otherwise on targets where the debug information is incorrect
+   for either the prototype or non-prototype case, we can force it by defining
+   COERCE_FLOAT_TO_DOUBLE in the target configuration file. */
+
+#ifndef COERCE_FLOAT_TO_DOUBLE
+#define COERCE_FLOAT_TO_DOUBLE (param_type == NULL)
+#endif
+
 /* Local functions.  */
 
 static int typecmp PARAMS ((int staticp, struct type *t1[], value_ptr t2[]));
@@ -440,7 +449,7 @@ value_assign (toval, fromval)
     {
     case lval_internalvar:
       set_internalvar (VALUE_INTERNALVAR (toval), fromval);
-      return VALUE_INTERNALVAR (toval)->value;
+      return value_copy (VALUE_INTERNALVAR (toval)->value);
 
     case lval_internalvar_component:
       set_internalvar_component (VALUE_INTERNALVAR (toval),
@@ -889,9 +898,7 @@ value_arg_coerce (arg, param_type)
       break;
    case TYPE_CODE_FLT:
      /* coerce float to double, unless the function prototype specifies float */
-#if 0
-     if (param_type == 0)
-#endif
+     if (COERCE_FLOAT_TO_DOUBLE)
        {
         if (TYPE_LENGTH (type) < TYPE_LENGTH (builtin_type_double))
           type = builtin_type_double;