X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=compiler%2Fmain%2FConstants.lhs;h=236f1f8653c23593d6890761471d66b58e0f306d;hp=fc47aade88358746fd173da22a5a1d93f490cf2c;hb=0af06ed99ed56341adfdda4a92a0a36678780109;hpb=17b297d97d327620ed6bfab942f8992b2446f1bf diff --git a/compiler/main/Constants.lhs b/compiler/main/Constants.lhs index fc47aad..236f1f8 100644 --- a/compiler/main/Constants.lhs +++ b/compiler/main/Constants.lhs @@ -4,149 +4,10 @@ \section[Constants]{Info about this compilation} \begin{code} -{-# OPTIONS_GHC -w #-} --- The above warning supression flag is a temporary kludge. --- While working on this module you are encouraged to remove it and fix --- any warnings in the module. See --- http://hackage.haskell.org/trac/ghc/wiki/WorkingConventions#Warnings --- for details - module Constants (module Constants) where -import Data.Bits (shiftL) - --- This magical #include brings in all the everybody-knows-these magic --- constants unfortunately, we need to be *explicit* about which one --- we want; if we just hope a -I... will get the right one, we could --- be in trouble. - -#include "HsVersions.h" -#include "../includes/MachRegs.h" -#include "../includes/Constants.h" -#include "../includes/MachDeps.h" -#include "../includes/DerivedConstants.h" - --- import Util -\end{code} - -All pretty arbitrary: - -\begin{code} -mAX_TUPLE_SIZE = (62 :: Int) -- Should really match the number - -- of decls in Data.Tuple -mAX_CONTEXT_REDUCTION_DEPTH = (20 :: Int) -\end{code} - - -\begin{code} --- specialised fun/thunk/constr closure types -mAX_SPEC_THUNK_SIZE = (MAX_SPEC_THUNK_SIZE :: Int) -mAX_SPEC_FUN_SIZE = (MAX_SPEC_FUN_SIZE :: Int) -mAX_SPEC_CONSTR_SIZE = (MAX_SPEC_CONSTR_SIZE :: Int) - --- pre-compiled thunk types -mAX_SPEC_SELECTEE_SIZE = (MAX_SPEC_SELECTEE_SIZE :: Int) -mAX_SPEC_AP_SIZE = (MAX_SPEC_AP_SIZE :: Int) - --- closure sizes: these do NOT include the header (see below for header sizes) -mIN_PAYLOAD_SIZE = (MIN_PAYLOAD_SIZE::Int) -\end{code} +#include "ghc_boot_platform.h" -\begin{code} -mIN_INTLIKE, mAX_INTLIKE :: Int -mIN_INTLIKE = MIN_INTLIKE -mAX_INTLIKE = MAX_INTLIKE - -mIN_CHARLIKE, mAX_CHARLIKE :: Int -mIN_CHARLIKE = MIN_CHARLIKE -mAX_CHARLIKE = MAX_CHARLIKE -\end{code} - -A section of code-generator-related MAGIC CONSTANTS. - -\begin{code} -mAX_Vanilla_REG = (MAX_VANILLA_REG :: Int) -mAX_Float_REG = (MAX_FLOAT_REG :: Int) -mAX_Double_REG = (MAX_DOUBLE_REG :: Int) -mAX_Long_REG = (MAX_LONG_REG :: Int) - -mAX_Real_Vanilla_REG = (MAX_REAL_VANILLA_REG :: Int) -mAX_Real_Float_REG = (MAX_REAL_FLOAT_REG :: Int) -mAX_Real_Double_REG = (MAX_REAL_DOUBLE_REG :: Int) -#ifdef MAX_REAL_LONG_REG -mAX_Real_Long_REG = (MAX_REAL_LONG_REG :: Int) -#else -mAX_Real_Long_REG = (0::Int) -#endif -\end{code} - -Closure header sizes. - -\begin{code} -sTD_HDR_SIZE = (STD_HDR_SIZE :: Int) -pROF_HDR_SIZE = (PROF_HDR_SIZE :: Int) -gRAN_HDR_SIZE = (GRAN_HDR_SIZE :: Int) -\end{code} - -Size of a double in StgWords. - -\begin{code} -dOUBLE_SIZE = SIZEOF_DOUBLE :: Int -wORD64_SIZE = 8 :: Int -iNT64_SIZE = wORD64_SIZE -\end{code} +#include "../includes/HaskellConstants.hs" -This tells the native code generator the size of the spill -area is has available. - -\begin{code} -rESERVED_C_STACK_BYTES = (RESERVED_C_STACK_BYTES :: Int) -\end{code} - -The amount of (Haskell) stack to leave free for saving registers when -returning to the scheduler. - -\begin{code} -rESERVED_STACK_WORDS = (RESERVED_STACK_WORDS :: Int) -\end{code} - -Size of a word, in bytes - -\begin{code} -wORD_SIZE = (SIZEOF_HSWORD :: Int) -wORD_SIZE_IN_BITS = wORD_SIZE * 8 :: Int -\end{code} - -Amount of pointer bits used for semi-tagging constructor closures - -\begin{code} -tAG_BITS = (TAG_BITS :: Int) -tAG_MASK = ((1 `shiftL` tAG_BITS) - 1) :: Int -mAX_PTR_TAG = tAG_MASK :: Int -\end{code} - -Size of a C int, in bytes. May be smaller than wORD_SIZE. - -\begin{code} -cINT_SIZE = (SIZEOF_INT :: Int) -\end{code} - -Size of a storage manager block (in bytes). - -\begin{code} -bLOCK_SIZE = (BLOCK_SIZE :: Int) -bLOCK_SIZE_W = (bLOCK_SIZE `quot` wORD_SIZE :: Int) -\end{code} - -Number of bits to shift a bitfield left by in an info table. - -\begin{code} -bITMAP_BITS_SHIFT = (BITMAP_BITS_SHIFT :: Int) -\end{code} - -Constants derived from headers in ghc/includes, generated by the program -../includes/mkDerivedConstants.c. - -\begin{code} -#include "../includes/GHCConstants.h" \end{code}