Add proper SMP locking to blackhole entry code.

Minor cleanup to get rid of warnings.

expose 'par' now that we have an implementation for both sequential
and SMP ways.

Bugfix (raiseError in non-enterable closures); added GranSim code to Schedule.c

- remove duplicate GHC_SYSMAN_DIR
- remove unused GHC_HSP_DIR

stmt2Instrs: correctly handle StData with zero data words

genCodeInfoTable: don't do getSRTInfo on the closure info if we already
know via infoTblNeedsSRT that an SRT isn't needed.

gentopcode: handle CClosureTbl.

Merged GUM-4-04 branch into the main trunk. In particular merged GUM and
SMP code. Most of the GranSim code in GUM-4-04 still has to be carried over.

Rearrange top-level nativeGen plumbing so that -ddump-stix is visible
even if subsequent nativeGen passes crash.

Added a rudimentary implementation of -ddump-stix.

- remove AllBlocked scheduler return code.  Nobody owned up to having
  created it or even knowing what it was there for.

- clean up fatal error condition handling somewhat.  The process
  exit code from a GHC program now indicates the kind of failure
  for certain kinds of exit:

	general internal RTS error	254
	program deadlocked		253
	program interrupted (ctrl-C)	252
	heap overflow			251
	main thread killed		250

  and we leave exit codes 1-199 for the user (as is traditional at MS,
  200-249 are reserved for future expansion, and may contain
  undocumented extensions :-)

evalExp(): rts_eval_ can no longer return AllBlocked, so remove test for it.

- make some debug printfs more consistent
- #ifdef around call to initSparkPools() (was breaking the normal build).

Libraries documentation moved to hslibs tree.

cgExpr(), case NAME: correctly handle tail call into native code

Don't do implementCfun for [] and (:) in combined mode,
since GHC supplies implementations.

Add 'par' and sparking support to the SMP implementation.

Clear up confusion regarding names of tuple types.
-- (), coded as Z0T, is the unit.
-- (,), coded as Z1T, is the pair type.
-- (,,,N commas,,,) coded as ZNT, is the (N+1)-tuple type.
-- There is no 1-ary type type.

readScripts(), combined mode: minor hack so that current eval module
is Prelude rather than PrelHugs, once the Prelude is loaded.

mark INDirections as non-sparkable.

Make hugsprimUnpackString :: Addr -> String available to Hugs' desugarer
in both modes.

Link nameInd to "_indirect".  Haven't a clue what this is for but it
seems necessary.

Handle tuple types (,,,) --> Z3T in enZcodeThenFindText().

Connect PrelBase.[] to PrelBase_ZMZN_closure, and (:) likewise.

Supply correct kinds for tycons created by addWiredInBoxingTycon().

Remember to set name(n).arity when n is a class method

nameFromOPtr(): don't try to search object sym tables for source modules
lookupSection(): ditto, plus don't forget to also look in
                 module(m).objectExtras

Add nameShow and namePutStr as hooks for said fns so that evaluator()
in hugs.c can refer to them in a style consistent with the way the rest
of Hugs refers to specific symbol names.

startGHCInstance: allocate a name() entry for the instance builder fn,
and store the name in the instance's .builder field.  Without this,
it's impossible to generate any code which uses an instance builder :-(

A module for use with the combined GHC-Hugs system.  Contains various
small helper functions referred to which Hugs' desugarer emits references.
The same functions are implemented in ghc/interpreter/lib/Prelude.hs
for use in standalone Hugs.  The two versions should correspond exactly.

Back out previous commit.

This is the missing log message for the commit by sewardj at
2000/01/10 08:23:33 PST for these files:

Some names in the standalone Prelude are referred to during desugaring
in Hugs.  These functions therefore need to be supplied from the GHC
world in combined mode.  Rename the relevant functions from
primXYZ to hugsprimXYZ to distinguish them, in preparation for
create of ghc/lib/std/PrelHugs.lhs.
---------------------------------------------------------------------

nameRunIO --> nameRunIO_toplevel

ocGetNames: sort the acquired symbol table by symbol name, so that
ocLookupSym can then use a fast binary search to find symbols.

Retagged <Literal>s into <Filename>, <Option>, <Command>, &c.

fix more breakage

ordering matters when you're using ':='...

type.c: implement typechecker(POSTPREL), so that initialisation
    of the typechecker is completed correctly in combined mode.
storage.c(addTupleTycon): create a name table entry for () so that
    nameUnit in the above can be bound to something.