2 % (c) The GRASP/AQUA Project, Glasgow University, 1992-1998
4 \section[Constants]{Info about this compilation}
7 module Constants (module Constants) where
9 -- This magical #include brings in all the everybody-knows-these magic
10 -- constants unfortunately, we need to be *explicit* about which one
11 -- we want; if we just hope a -I... will get the right one, we could
14 #include "HsVersions.h"
15 #include "../includes/MachRegs.h"
16 #include "../includes/Constants.h"
17 #include "../includes/MachDeps.h"
18 #include "../includes/DerivedConstants.h"
26 mAX_TUPLE_SIZE = (62 :: Int) -- Should really match the number
27 -- of decls in Data.Tuple
28 mAX_CONTEXT_REDUCTION_DEPTH = (20 :: Int)
33 -- specialised fun/thunk/constr closure types
34 mAX_SPEC_THUNK_SIZE = (MAX_SPEC_THUNK_SIZE :: Int)
35 mAX_SPEC_FUN_SIZE = (MAX_SPEC_FUN_SIZE :: Int)
36 mAX_SPEC_CONSTR_SIZE = (MAX_SPEC_CONSTR_SIZE :: Int)
38 -- pre-compiled thunk types
39 mAX_SPEC_SELECTEE_SIZE = (MAX_SPEC_SELECTEE_SIZE :: Int)
40 mAX_SPEC_AP_SIZE = (MAX_SPEC_AP_SIZE :: Int)
42 -- closure sizes: these do NOT include the header (see below for header sizes)
43 mIN_UPD_SIZE = (MIN_UPD_SIZE::Int)
44 mIN_SIZE_NonUpdHeapObject = (MIN_NONUPD_SIZE::Int)
48 mIN_INTLIKE, mAX_INTLIKE :: Int
49 mIN_INTLIKE = MIN_INTLIKE
50 mAX_INTLIKE = MAX_INTLIKE
52 mIN_CHARLIKE, mAX_CHARLIKE :: Int
53 mIN_CHARLIKE = MIN_CHARLIKE
54 mAX_CHARLIKE = MAX_CHARLIKE
57 A section of code-generator-related MAGIC CONSTANTS.
60 mAX_FAMILY_SIZE_FOR_VEC_RETURNS = (MAX_VECTORED_RTN::Int) -- pretty arbitrary
61 -- If you change this, you may need to change runtimes/standard/Update.lhc
65 mAX_Vanilla_REG = (MAX_VANILLA_REG :: Int)
66 mAX_Float_REG = (MAX_FLOAT_REG :: Int)
67 mAX_Double_REG = (MAX_DOUBLE_REG :: Int)
68 mAX_Long_REG = (MAX_LONG_REG :: Int)
70 mAX_Real_Vanilla_REG = (MAX_REAL_VANILLA_REG :: Int)
71 mAX_Real_Float_REG = (MAX_REAL_FLOAT_REG :: Int)
72 mAX_Real_Double_REG = (MAX_REAL_DOUBLE_REG :: Int)
73 #ifdef MAX_REAL_LONG_REG
74 mAX_Real_Long_REG = (MAX_REAL_LONG_REG :: Int)
76 mAX_Real_Long_REG = (0::Int)
83 sTD_HDR_SIZE = (STD_HDR_SIZE :: Int)
84 pROF_HDR_SIZE = (PROF_HDR_SIZE :: Int)
85 gRAN_HDR_SIZE = (GRAN_HDR_SIZE :: Int)
91 sTD_ITBL_SIZE = (STD_ITBL_SIZE :: Int)
92 rET_ITBL_SIZE = (RET_ITBL_SIZE :: Int)
93 pROF_ITBL_SIZE = (PROF_ITBL_SIZE :: Int)
94 gRAN_ITBL_SIZE = (GRAN_ITBL_SIZE :: Int)
95 tICKY_ITBL_SIZE = (TICKY_ITBL_SIZE :: Int)
98 Size of a double in StgWords.
101 dOUBLE_SIZE = SIZEOF_DOUBLE :: Int
102 wORD64_SIZE = 8 :: Int
103 iNT64_SIZE = wORD64_SIZE
106 This tells the native code generator the size of the spill
107 area is has available.
110 rESERVED_C_STACK_BYTES = (RESERVED_C_STACK_BYTES :: Int)
113 The amount of (Haskell) stack to leave free for saving registers when
114 returning to the scheduler.
117 rESERVED_STACK_WORDS = (RESERVED_STACK_WORDS :: Int)
120 Size of a word, in bytes
123 wORD_SIZE = (SIZEOF_HSWORD :: Int)
124 wORD_SIZE_IN_BITS = wORD_SIZE * 8 :: Int
127 Size of a C int, in bytes. May be smaller than wORD_SIZE.
130 cINT_SIZE = (SIZEOF_INT :: Int)
133 Size of a storage manager block (in bytes).
136 bLOCK_SIZE = (BLOCK_SIZE :: Int)
137 bLOCK_SIZE_W = (bLOCK_SIZE `quot` wORD_SIZE :: Int)
140 Number of bits to shift a bitfield left by in an info table.
143 bITMAP_BITS_SHIFT = (BITMAP_BITS_SHIFT :: Int)
146 Constants derived from headers in ghc/includes, generated by the program
147 ../includes/mkDerivedConstants.c.
150 #include "../includes/GHCConstants.h"