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, 47 insertions, 0 deletions

diff --git a/rts/RetainerProfile.h b/rts/RetainerProfile.h
new file mode 100644
index 0000000000..827daa8ef4
--- /dev/null
+++ b/rts/RetainerProfile.h
@@ -0,0 +1,47 @@
+/* -----------------------------------------------------------------------------
+ *
+ * (c) The GHC Team, 2001
+ * Author: Sungwoo Park
+ *
+ * Retainer profiling interface.
+ *
+ * ---------------------------------------------------------------------------*/
+
+#ifndef RETAINERPROFILE_H
+#define RETAINERPROFILE_H
+
+#ifdef PROFILING
+
+#include "RetainerSet.h"
+
+extern void  initRetainerProfiling ( void );
+extern void  endRetainerProfiling  ( void );
+extern void  printRetainer         ( FILE *, retainer );
+extern void  retainerProfile       ( void );
+extern void  resetStaticObjectForRetainerProfiling ( void );
+
+extern StgWord RTS_VAR(flip);
+
+// extract the retainer set field from c
+#define RSET(c)   ((c)->header.prof.hp.rs)
+
+#define isRetainerSetFieldValid(c) \
+  ((((StgWord)(c)->header.prof.hp.rs & 1) ^ flip) == 0)
+
+static inline RetainerSet *
+retainerSetOf( StgClosure *c )
+{
+    ASSERT( isRetainerSetFieldValid(c) );
+    // StgWord has the same size as pointers, so the following type
+    // casting is okay.
+    return (RetainerSet *)((StgWord)RSET(c) ^ flip);
+}
+
+// Used by Storage.c:memInventory()
+#ifdef DEBUG
+extern lnat retainerStackBlocks ( void );
+#endif
+
+#endif /* PROFILING */
+
+#endif /* RETAINERPROFILE_H */