1.0.12.19: runtime cleanups by Daniel Lowe

[sbcl.git] / src / runtime / runtime.h

diff --git a/src/runtime/runtime.h b/src/runtime/runtime.h
index e208a52..8304b77 100644 (file)
--- a/src/runtime/runtime.h
+++ b/src/runtime/runtime.h
@@ -37,6 +37,12 @@
  * problem.. */
 #define QSHOW_SIGNALS 0
 
+#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
  * that SBCL runs on as of 0.6.7. If we port to the Alpha or some
@@ -74,12 +80,14 @@ 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;
 }
 
@@ -122,31 +130,56 @@ native_pointer(lispobj obj)
 {
     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 */
-#define make_lispobj(o,low_tag) ((lispobj)(LOW_WORD(o)|low_tag))
+ * pointer or integer.*/
+static inline lispobj
+make_lispobj(void *o, int low_tag)
+{
+    return LOW_WORD(o) | low_tag;
+}
 
-/* 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)<<N_FIXNUM_TAG_BITS))
-#define fixnum_value(n) (((long)n)>>N_FIXNUM_TAG_BITS)
+static inline lispobj
+make_fixnum(long n)
+{
+    return n << N_FIXNUM_TAG_BITS;
+}
 
-/* Too bad ANSI C doesn't define "bool" as C++ does.. */
-typedef int boolean;
+static inline long
+fixnum_value(lispobj n)
+{
+    return n >> N_FIXNUM_TAG_BITS;
+}
 
-/* This only works for static symbols. */
-/* FIXME: should be called StaticSymbolFunction, right? */
-#define SymbolFunction(sym) \
-    (((struct fdefn *)(native_pointer(SymbolValue(sym,0))))->fun)
+#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;
 
 /* 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_ */