Commit 4b5f32d7 authored by simonmar's avatar simonmar
Browse files

[project @ 2002-03-26 10:43:15 by simonmar]

A couple of cleanups to the previous change: we should test
TABLES_NEXT_TO_CODE rather than USE_MINIINTERPRETER to enable the
MacOSX "plan C", and use structure field selection rather than array
indexing to get the entry code ptr from the info table.
parent 53ddaa57
/* -----------------------------------------------------------------------------
* $Id: Storage.h,v 1.42 2002/03/21 11:24:00 sebc Exp $
* $Id: Storage.h,v 1.43 2002/03/26 10:43:15 simonmar Exp $
*
* (c) The GHC Team, 1998-1999
*
......@@ -551,13 +551,17 @@ extern unsigned long macho_edata;
(MAX_INTLIKE-MIN_INTLIKE) * sizeof(StgIntCharlikeClosure)) )
#define LOOKS_LIKE_STATIC_CLOSURE(r) (((*(((unsigned long *)(r))-1)) == 0) || IS_CHARLIKE_CLOSURE(r) || IS_INTLIKE_CLOSURE(r))
#elif defined(darwin_TARGET_OS) && defined(USE_MINIINTERPRETER)
#elif defined(darwin_TARGET_OS) && !defined(TABLES_NEXT_TO_CODE)
#define LOOKS_LIKE_STATIC(r) (!(HEAP_ALLOCED(r)))
# define LOOKS_LIKE_STATIC_CLOSURE(r) \
(IS_DATA_PTR(r) && !LOOKS_LIKE_GHC_INFO(r))
#define LOOKS_LIKE_STATIC_CLOSURE(r) (IS_DATA_PTR(r) && !LOOKS_LIKE_GHC_INFO(r))
#else
#define LOOKS_LIKE_STATIC(r) IS_DATA_PTR(r)
#define LOOKS_LIKE_STATIC_CLOSURE(r) IS_DATA_PTR(r)
#endif
......@@ -577,9 +581,9 @@ extern unsigned long macho_edata;
/* LOOKS_LIKE_GHC_INFO is called moderately often during GC, but
* Certainly not as often as HEAP_ALLOCED.
*/
#if defined(darwin_TARGET_OS) && defined(USE_MINIINTERPRETER)
#if defined(darwin_TARGET_OS) && !defined(TABLES_NEXT_TO_CODE)
/* Plan C, see above */
# define LOOKS_LIKE_GHC_INFO(info) IS_CODE_PTR(((P_*)(info))[0])
#define LOOKS_LIKE_GHC_INFO(info) IS_CODE_PTR(((StgInfoTable *)info).entry)
#else
#define LOOKS_LIKE_GHC_INFO(info) (!HEAP_ALLOCED(info) \
&& !LOOKS_LIKE_STATIC_CLOSURE(info))
......
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