* vax-tdep.c (vax_return_value): Implement

RETURN_VALUE_ABI_RETURNS_ADDRESS.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 27d0058..a3efd1e 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2004-05-18  Mark Kettenis  <kettenis@gnu.org>
+
+       * vax-tdep.c (vax_return_value): Implement
+       RETURN_VALUE_ABI_RETURNS_ADDRESS.
+
 2004-05-17  Mark Kettenis  <kettenis@gnu.org>
 
        * vax-tdep.c (vax_return_value): Fix typo.

diff --git a/gdb/vax-tdep.c b/gdb/vax-tdep.c
index f9f044a..e5b7cb8 100644 (file)
--- a/gdb/vax-tdep.c
+++ b/gdb/vax-tdep.c
@@ -212,7 +212,21 @@ vax_return_value (struct gdbarch *gdbarch, struct type *type,
   if (TYPE_CODE (type) == TYPE_CODE_STRUCT
       || TYPE_CODE (type) == TYPE_CODE_UNION
       || TYPE_CODE (type) == TYPE_CODE_ARRAY)
-    return RETURN_VALUE_STRUCT_CONVENTION;
+    {
+      /* The default on VAX is to return structures in static memory.
+         Consequently a function must return the address where we can
+         find the return value.  */
+
+      if (readbuf)
+       {
+         ULONGEST addr;
+
+         regcache_raw_read_unsigned (regcache, VAX_R0_REGNUM, &addr);
+         read_memory (addr, readbuf, len);
+       }
+
+      return RETURN_VALUE_ABI_RETURNS_ADDRESS;
+    }
 
   if (readbuf)
     {