Merged in changes from CVS trunk.

[gnu-emacs] / src / alloc.c

diff --git a/src/alloc.c b/src/alloc.c
index baf7afa0094dec6150e802bc5adbfaee8ac01b6a..ea1d542bc7cacc28d673f128868066af33e318e3 100644 (file)
--- a/src/alloc.c
+++ b/src/alloc.c
@@ -1,6 +1,6 @@
 /* Storage allocation and gc for GNU Emacs Lisp interpreter.
-   Copyright (C) 1985,86,88,93,94,95,97,98,1999,2000,01,02,03,2004
-      Free Software Foundation, Inc.
+   Copyright (C) 1985, 1986, 1988, 1993, 1994, 1995, 1997, 1998, 1999,
+      2000, 2001, 2002, 2003, 2004  Free Software Foundation, Inc.
 
 This file is part of GNU Emacs.
 
@@ -186,8 +186,11 @@ Lisp_Object Vmemory_full;
 
 #ifndef HAVE_SHM
 
-/* Force it into data space!  Initialize it to a nonzero value;
-   otherwise some compilers put it into BSS.  */
+/* Initialize it to a nonzero value to force it into data space
+   (rather than bss space).  That way unexec will remap it into text
+   space (pure), on some systems.  We have not implemented the
+   remapping on more recent systems because this is less important
+   nowadays than in the days of small memories and timesharing.  */
 
 EMACS_INT pure[PURESIZE / sizeof (EMACS_INT)] = {1,};
 #define PUREBEG (char *) pure
@@ -591,6 +594,7 @@ safe_alloca_unwind (arg)
   p->dogc = 0;
   xfree (p->pointer);
   p->pointer = 0;
+  free_misc (arg);
   return Qnil;
 }
 
@@ -2395,6 +2399,17 @@ DEFUN ("cons", Fcons, Scons, 2, 2, 0,
   return val;
 }
 
+/* Get an error now if there's any junk in the cons free list.  */
+void
+check_cons_list ()
+{
+  struct Lisp_Cons *tail = cons_free_list;
+
+#if 0
+  while (tail)
+    tail = *(struct Lisp_Cons **)&tail->cdr;
+#endif
+}
 
 /* Make a list of 2, 3, 4 or 5 specified objects.  */
 
@@ -2922,17 +2937,32 @@ allocate_misc ()
          marker_block = new;
          marker_block_index = 0;
          n_marker_blocks++;
+         total_free_markers += MARKER_BLOCK_SIZE;
        }
       XSETMISC (val, &marker_block->markers[marker_block_index]);
       marker_block_index++;
     }
 
+  --total_free_markers;
   consing_since_gc += sizeof (union Lisp_Misc);
   misc_objects_consed++;
   XMARKER (val)->gcmarkbit = 0;
   return val;
 }
 
+/* Free a Lisp_Misc object */
+
+void
+free_misc (misc)
+     Lisp_Object misc;
+{
+  XMISC (misc)->u_marker.type = Lisp_Misc_Free;
+  XMISC (misc)->u_free.chain = marker_free_list;
+  marker_free_list = XMISC (misc);
+
+  total_free_markers++;
+}
+
 /* Return a Lisp_Misc_Save_Value object containing POINTER and
    INTEGER.  This is used to package C values to call record_unwind_protect.
    The unwind function can get the C values back using XSAVE_VALUE.  */
@@ -2979,12 +3009,7 @@ free_marker (marker)
      Lisp_Object marker;
 {
   unchain_marker (XMARKER (marker));
-
-  XMISC (marker)->u_marker.type = Lisp_Misc_Free;
-  XMISC (marker)->u_free.chain = marker_free_list;
-  marker_free_list = XMISC (marker);
-
-  total_free_markers++;
+  free_misc (marker);
 }
 
 \f
@@ -4433,6 +4458,21 @@ returns nil, because real GC can't be done.  */)
   for (i = 0; i < staticidx; i++)
     mark_object (*staticvec[i]);
 
+  for (bind = specpdl; bind != specpdl_ptr; bind++)
+    {
+      mark_object (bind->symbol);
+      mark_object (bind->old_value);
+    }
+  mark_kboards ();
+  mark_ttys ();
+
+#ifdef USE_GTK
+  {
+    extern void xg_mark_data ();
+    xg_mark_data ();
+  }
+#endif
+
 #if (GC_MARK_STACK == GC_MAKE_GCPROS_NOOPS \
      || GC_MARK_STACK == GC_MARK_STACK_CHECK_GCPROS)
   mark_stack ();
@@ -4446,11 +4486,6 @@ returns nil, because real GC can't be done.  */)
 #endif
 
   mark_byte_stack ();
-  for (bind = specpdl; bind != specpdl_ptr; bind++)
-    {
-      mark_object (bind->symbol);
-      mark_object (bind->old_value);
-    }
   for (catch = catchlist; catch; catch = catch->next)
     {
       mark_object (catch->tag);
@@ -4462,20 +4497,11 @@ returns nil, because real GC can't be done.  */)
       mark_object (handler->var);
     }
   mark_backtrace ();
-  mark_kboards ();
-  mark_ttys ();
 
 #if GC_MARK_STACK == GC_USE_GCPROS_CHECK_ZOMBIES
   mark_stack ();
 #endif
 
-#ifdef USE_GTK
-  {
-    extern void xg_mark_data ();
-    xg_mark_data ();
-  }
-#endif
-
   /* Everything is now marked, except for the things that require special
      finalization, i.e. the undo_list.
      Look thru every buffer's undo list
@@ -5024,6 +5050,7 @@ mark_object (arg)
          break;
 
        case Lisp_Misc_Save_Value:
+#if GC_MARK_STACK
          {
            register struct Lisp_Save_Value *ptr = XSAVE_VALUE (obj);
            /* If DOGC is set, POINTER is the address of a memory
@@ -5036,6 +5063,7 @@ mark_object (arg)
                  mark_maybe_object (*p);
              }
          }
+#endif
          break;
 
        case Lisp_Misc_Overlay: