diff options
Diffstat (limited to 'libguile/frames.c')
-rw-r--r-- | libguile/frames.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/libguile/frames.c b/libguile/frames.c index b805137a4..b57b1295d 100644 --- a/libguile/frames.c +++ b/libguile/frames.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2001, 2009, 2010, 2011 Free Software Foundation, Inc. +/* Copyright (C) 2001, 2009, 2010, 2011, 2012 Free Software Foundation, Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public License @@ -24,9 +24,16 @@ #include <string.h> #include "_scm.h" #include "frames.h" +#include <verify.h> + +/* Make sure assumptions on the layout of `struct scm_vm_frame' hold. */ +verify (sizeof (SCM) == sizeof (SCM *)); +verify (sizeof (struct scm_vm_frame) == 5 * sizeof (SCM)); +verify (offsetof (struct scm_vm_frame, dynamic_link) == 0); -#define RELOC(frame, val) (val + SCM_VM_FRAME_OFFSET (frame)) +#define RELOC(frame, val) \ + (((SCM *) (val)) + SCM_VM_FRAME_OFFSET (frame)) SCM scm_c_make_frame (SCM stack_holder, SCM *fp, SCM *sp, |