* problem.. */
#define QSHOW_SIGNALS 0
-#define N_LOWTAG_BITS 3
-#define LOWTAG_MASK ((1<<N_LOWTAG_BITS)-1)
-#define N_WIDETAG_BITS 8
-#define WIDETAG_MASK ((1<<N_WIDETAG_BITS)-1)
-
-/* FIXME: Make HeaderValue, CONS, SYMBOL, and FDEFN into inline
- * functions instead of macros. */
-
-#define HeaderValue(obj) ((unsigned long) ((obj) >> N_WIDETAG_BITS))
-
-#define CONS(obj) ((struct cons *)((obj)-LIST_POINTER_LOWTAG))
-#define SYMBOL(obj) ((struct symbol *)((obj)-OTHER_POINTER_LOWTAG))
-#define FDEFN(obj) ((struct fdefn *)((obj)-OTHER_POINTER_LOWTAG))
+#if QSHOW_SIGNALS
+#define FSHOW_SIGNAL FSHOW
+#else
+#define FSHOW_SIGNAL(args)
+#endif
/* KLUDGE: These are in theory machine-dependent and OS-dependent, but
* in practice the "foo int" definitions work for all the machines
* other non-32-bit machine we'll probably need real machine-dependent
* and OS-dependent definitions again. */
/* even on alpha, int happens to be 4 bytes. long is longer. */
+/* FIXME: these names really shouldn't reflect their length and this
+ is not quite right for some of the FFI stuff */
+typedef unsigned long u64;
+typedef signed long s64;
typedef unsigned int u32;
typedef signed int s32;
-#define LOW_WORD(c) ((long)(c) & 0xFFFFFFFFL)
+
/* this is an integral type the same length as a machine pointer */
typedef unsigned long pointer_sized_uint_t ;
-typedef u32 lispobj;
+#include <sys/types.h>
+
+#if defined(LISP_FEATURE_SB_THREAD)
+#include <pthread.h>
+typedef pthread_t os_thread_t;
+#else
+typedef pid_t os_thread_t;
+#endif
+
+/* FIXME: we do things this way because of the alpha32 port. once
+ alpha64 has arrived, all this nastiness can go away */
+#if 64 == N_WORD_BITS
+#define LOW_WORD(c) ((pointer_sized_uint_t)c)
+typedef unsigned long lispobj;
+#else
+#define LOW_WORD(c) ((long)(c) & 0xFFFFFFFFL)
+/* fake it on alpha32 */
+typedef unsigned int lispobj;
+#endif
static inline int
-lowtag_of(lispobj obj) {
+lowtag_of(lispobj obj)
+{
return obj & LOWTAG_MASK;
}
static inline int
-widetag_of(lispobj obj) {
+widetag_of(lispobj obj)
+{
return obj & WIDETAG_MASK;
}
+static inline unsigned long
+HeaderValue(lispobj obj)
+{
+ return obj >> N_WIDETAG_BITS;
+}
+
+static inline struct cons *
+CONS(lispobj obj)
+{
+ return (struct cons *)(obj - LIST_POINTER_LOWTAG);
+}
+
+static inline struct symbol *
+SYMBOL(lispobj obj)
+{
+ return (struct symbol *)(obj - OTHER_POINTER_LOWTAG);
+}
+
+static inline struct fdefn *
+FDEFN(lispobj obj)
+{
+ return (struct fdefn *)(obj - OTHER_POINTER_LOWTAG);
+}
+
/* Is the Lisp object obj something with pointer nature (as opposed to
* e.g. a fixnum or character or unbound marker)? */
static inline int
{
return (lispobj *) ((pointer_sized_uint_t) (obj & ~LOWTAG_MASK));
}
+
/* inverse operation: create a suitably tagged lispobj from a native
* pointer or integer. Needs to be a macro due to the tedious C type
* system */
/* FIXME: There seems to be no reason that make_fixnum and fixnum_value
* can't be implemented as (possibly inline) functions. */
-#define make_fixnum(n) ((lispobj)((n)<<2))
-#define fixnum_value(n) (((long)n)>>2)
+#define make_fixnum(n) ((lispobj)((n)<<N_FIXNUM_TAG_BITS))
+#define fixnum_value(n) (((long)n)>>N_FIXNUM_TAG_BITS)
-/* Too bad ANSI C doesn't define "bool" as C++ does.. */
+#if defined(LISP_FEATURE_WIN32)
+/* KLUDGE: Avoid double definition of boolean by rpcndr.h included via
+ * shlobj.h.
+ *
+ * FIXME: We should probably arrange to use the rpcndr.h boolean on Windows,
+ * or get rid of our own boolean type. If the boolean type is only used in
+ * the runtime, and never passed to Lisp, then it doesn't matter which one
+ * we use.
+ */
+#define boolean rpcndr_boolean
+#include <shlobj.h>
+#undef boolean
+#endif
typedef int boolean;
/* This only works for static symbols. */
/* KLUDGE: As far as I can tell there's no ANSI C way of saying
* "this function never returns". This is the way that you do it
- * in GCC later than version 2.7 or so. If you are using some
- * compiler that doesn't understand this, you could could just
- * change it to "typedef void never_returns" and nothing would
- * break, though you might get a few more bytes of compiled code or
- * a few more compiler warnings. -- WHN 2000-10-21 */
-typedef volatile void never_returns;
+ * in GCC later than version 2.5 or so. */
+#if defined(__GNUC__)
+#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 5)
+#define never_returns __attribute__ ((noreturn))
+#else
+#define never_returns
+#endif
+#else
+#define never_returns
+#endif
+
+extern void *successful_malloc (size_t size);
+extern char *copied_string (char *string);
#endif /* _SBCL_RUNTIME_H_ */
projects / sbcl.git / blobdiff