Reorganisation of the source tree

Most of the other users of the fptools build system have migrated to
Cabal, and with the move to darcs we can now flatten the source tree
without losing history, so here goes.

The main change is that the ghc/ subdir is gone, and most of what it
contained is now at the top level.  The build system now makes no
pretense at being multi-project, it is just the GHC build system.

No doubt this will break many things, and there will be a period of
instability while we fix the dependencies.  A straightforward build
should work, but I haven't yet fixed binary/source distributions.
Changes to the Building Guide will follow, too.

1 files changed, 42 insertions, 0 deletions

diff --git a/rts/LdvProfile.h b/rts/LdvProfile.h
new file mode 100644
index 0000000000..d85b95cd6a
--- /dev/null
+++ b/rts/LdvProfile.h
@@ -0,0 +1,42 @@
+/* -----------------------------------------------------------------------------
+ *
+ * (c) The GHC Team, 2001
+ * Author: Sungwoo Park
+ *
+ * Lag/Drag/Void profiling.
+ *
+ * ---------------------------------------------------------------------------*/
+
+#ifndef LDVPROFILE_H
+#define LDVPROFILE_H
+
+#ifdef PROFILING
+
+#include "ProfHeap.h"
+
+extern void LDV_recordDead_FILL_SLOP_DYNAMIC( StgClosure *p );
+extern void LdvCensusForDead ( nat );
+extern void LdvCensusKillAll ( void );
+
+// Creates a 0-filled slop of size 'howManyBackwards' backwards from the
+// address 'from'. 
+//
+// Invoked when: 
+//   1) Hp is incremented and exceeds HpLim (in Updates.hc).
+//   2) copypart() is called (in GC.c).
+#define LDV_FILL_SLOP(from, howManyBackwards)	\
+  if (era > 0) {				\
+    int i;					\
+    for (i = 0;i < (howManyBackwards); i++)	\
+      ((StgWord *)(from))[-i] = 0;		\
+  }
+
+// Informs the LDV profiler that closure c has just been evacuated.
+// Evacuated objects are no longer needed, so we just store its original size in
+// the LDV field.
+#define SET_EVACUAEE_FOR_LDV(c, size)   \
+    LDVW((c)) = (size)
+
+#endif /* PROFILING */
+
+#endif /* LDVPROFILE_H */