Change meaning of VALUE_FRAME_ID; rename to VALUE_NEXT_FRAME_ID

[deliverable/binutils-gdb.git] / gdb / findvar.c

diff --git a/gdb/findvar.c b/gdb/findvar.c
index 6e28a296de06cd4337df9aaefc78fe9c6660e481..bab717aa7f5f0a0ad31cabcb4d26ca23369091c3 100644 (file)
--- a/gdb/findvar.c
+++ b/gdb/findvar.c
@@ -283,17 +283,23 @@ value_of_register_lazy (struct frame_info *frame, int regnum)
 {
   struct gdbarch *gdbarch = get_frame_arch (frame);
   struct value *reg_val;
+  struct frame_info *next_frame;
 
   gdb_assert (regnum < (gdbarch_num_regs (gdbarch)
                        + gdbarch_num_pseudo_regs (gdbarch)));
 
-  /* We should have a valid (i.e. non-sentinel) frame.  */
-  gdb_assert (frame_id_p (get_frame_id (frame)));
+  gdb_assert (frame != NULL);
+
+  next_frame = get_next_frame_sentinel_okay (frame);
+
+  /* We should have a valid next frame.  */
+  gdb_assert (frame_id_p (get_frame_id (next_frame)));
 
   reg_val = allocate_value_lazy (register_type (gdbarch, regnum));
   VALUE_LVAL (reg_val) = lval_register;
   VALUE_REGNUM (reg_val) = regnum;
-  VALUE_FRAME_ID (reg_val) = get_frame_id (frame);
+  VALUE_NEXT_FRAME_ID (reg_val) = get_frame_id (next_frame);
+
   return reg_val;
 }
 
@@ -815,9 +821,17 @@ default_value_from_register (struct gdbarch *gdbarch, struct type *type,
 {
   int len = TYPE_LENGTH (type);
   struct value *value = allocate_value (type);
+  struct frame_info *frame;
 
   VALUE_LVAL (value) = lval_register;
-  VALUE_FRAME_ID (value) = frame_id;
+  frame = frame_find_by_id (frame_id);
+
+  if (frame == NULL)
+    frame_id = null_frame_id;
+  else
+    frame_id = get_frame_id (get_next_frame_sentinel_okay (frame));
+
+  VALUE_NEXT_FRAME_ID (value) = frame_id;
   VALUE_REGNUM (value) = regnum;
 
   /* Any structure stored in more than one register will always be
@@ -902,7 +916,7 @@ value_from_register (struct type *type, int regnum, struct frame_info *frame)
          including the location.  */
       v = allocate_value (type);
       VALUE_LVAL (v) = lval_register;
-      VALUE_FRAME_ID (v) = get_frame_id (frame);
+      VALUE_NEXT_FRAME_ID (v) = get_frame_id (get_next_frame_sentinel_okay (frame));
       VALUE_REGNUM (v) = regnum;
       ok = gdbarch_register_to_value (gdbarch, frame, regnum, type1,
                                      value_contents_raw (v), &optim,
@@ -950,7 +964,7 @@ address_from_register (int regnum, struct frame_info *frame)
      where the ID of FRAME is not yet known.  Calling value_from_register
      would therefore abort in get_frame_id.  However, since we only need
      a temporary value that is never used as lvalue, we actually do not
-     really need to set its VALUE_FRAME_ID.  Therefore, we re-implement
+     really need to set its VALUE_NEXT_FRAME_ID.  Therefore, we re-implement
      the core of value_from_register, but use the null_frame_id.  */
 
   /* Some targets require a special conversion routine even for plain