2 % (c) The GRASP/AQUA Project, Glasgow University, 1992-1998
4 \section[Constants]{Info about this compilation}
8 mAX_CONTEXT_REDUCTION_DEPTH,
14 mAX_SPEC_SELECTEE_SIZE,
18 mIN_SIZE_NonUpdHeapObject,
26 rESERVED_C_STACK_BYTES,
33 mAX_FAMILY_SIZE_FOR_VEC_RETURNS,
45 gRAN_SEQ_FRAME_SIZE, -- HWL
59 mAX_INTLIKE, mIN_INTLIKE,
60 mAX_CHARLIKE, mIN_CHARLIKE,
73 interfaceFileFormatVersion
77 -- This magical #include brings in all the everybody-knows-these magic
78 -- constants unfortunately, we need to be *explicit* about which one
79 -- we want; if we just hope a -I... will get the right one, we could
82 #include "HsVersions.h"
83 #include "../includes/config.h"
84 #include "../includes/MachRegs.h"
85 #include "../includes/Constants.h"
93 mAX_TUPLE_SIZE = (37 :: Int)
94 mAX_CONTEXT_REDUCTION_DEPTH = (20 :: Int)
99 -- specialised fun/thunk/constr closure types
100 mAX_SPEC_THUNK_SIZE = (MAX_SPEC_THUNK_SIZE :: Int)
101 mAX_SPEC_FUN_SIZE = (MAX_SPEC_FUN_SIZE :: Int)
102 mAX_SPEC_CONSTR_SIZE = (MAX_SPEC_CONSTR_SIZE :: Int)
104 -- pre-compiled thunk types
105 mAX_SPEC_SELECTEE_SIZE = (MAX_SPEC_SELECTEE_SIZE :: Int)
106 mAX_SPEC_AP_SIZE = (MAX_SPEC_AP_SIZE :: Int)
108 -- closure sizes: these do NOT include the header (see below for header sizes)
109 mIN_UPD_SIZE = (MIN_UPD_SIZE::Int)
110 mIN_SIZE_NonUpdHeapObject = (MIN_NONUPD_SIZE::Int)
113 Constants for semi-tagging; the tags associated with the data
114 constructors will start at 0 and go up.
117 oTHER_TAG = (INFO_OTHER_TAG :: Integer) -- (-1) unevaluated, probably
121 mIN_INTLIKE, mAX_INTLIKE :: Integer -- Only used to compare with (MachInt Integer)
122 mIN_INTLIKE = MIN_INTLIKE
123 mAX_INTLIKE = MAX_INTLIKE
125 mIN_CHARLIKE, mAX_CHARLIKE :: Int -- Only used to compare with (MachChar Int)
126 mIN_CHARLIKE = MIN_CHARLIKE
127 mAX_CHARLIKE = MAX_CHARLIKE
130 A little function that abstracts the stack direction. Note that most
131 of the code generator is dependent on the stack direction anyway, so
132 changing this on its own spells certain doom. ToDo: remove?
135 -- THIS IS DIRECTION SENSITIVE!
137 -- stack grows down, positive virtual offsets correspond to negative
138 -- additions to the stack pointer.
140 spRelToInt :: Int{-VirtualSpOffset-} -> Int{-VirtualSpOffset-} -> Int
141 spRelToInt sp off = sp - off
144 A section of code-generator-related MAGIC CONSTANTS.
147 mAX_FAMILY_SIZE_FOR_VEC_RETURNS = (MAX_VECTORED_RTN::Int) -- pretty arbitrary
148 -- If you change this, you may need to change runtimes/standard/Update.lhc
150 -- The update frame sizes
151 uF_SIZE = (NOSCC_UF_SIZE::Int)
153 -- Same again, with profiling
154 sCC_UF_SIZE = (SCC_UF_SIZE::Int)
156 -- Same again, with gransim
157 gRAN_UF_SIZE = (GRAN_UF_SIZE::Int)
159 -- Offsets in an update frame. They don't change with profiling!
160 uF_RET = (UF_RET::Int)
162 uF_UPDATEE = (UF_UPDATEE::Int)
163 uF_CCS = (UF_CCS::Int)
169 sEQ_FRAME_SIZE = (NOSCC_SEQ_FRAME_SIZE::Int)
170 sCC_SEQ_FRAME_SIZE = (SCC_SEQ_FRAME_SIZE::Int)
171 gRAN_SEQ_FRAME_SIZE = (GRAN_SEQ_FRAME_SIZE::Int)
175 mAX_Vanilla_REG = (MAX_VANILLA_REG :: Int)
176 mAX_Float_REG = (MAX_FLOAT_REG :: Int)
177 mAX_Double_REG = (MAX_DOUBLE_REG :: Int)
178 mAX_Long_REG = (MAX_LONG_REG :: Int)
180 mAX_Real_Vanilla_REG = (MAX_REAL_VANILLA_REG :: Int)
181 mAX_Real_Float_REG = (MAX_REAL_FLOAT_REG :: Int)
182 mAX_Real_Double_REG = (MAX_REAL_DOUBLE_REG :: Int)
183 #ifdef MAX_REAL_LONG_REG
184 mAX_Real_Long_REG = (MAX_REAL_LONG_REG :: Int)
186 mAX_Real_Long_REG = (0::Int)
190 Closure header sizes.
193 sTD_HDR_SIZE = (STD_HDR_SIZE :: Int)
194 pROF_HDR_SIZE = (PROF_HDR_SIZE :: Int)
195 gRAN_HDR_SIZE = (GRAN_HDR_SIZE :: Int)
196 tICKY_HDR_SIZE = (TICKY_HDR_SIZE :: Int)
197 aRR_WORDS_HDR_SIZE = (ARR_WORDS_HDR_SIZE :: Int)
198 aRR_PTRS_HDR_SIZE = (ARR_PTRS_HDR_SIZE :: Int)
204 sTD_ITBL_SIZE = (STD_ITBL_SIZE :: Int)
205 pROF_ITBL_SIZE = (PROF_ITBL_SIZE :: Int)
206 gRAN_ITBL_SIZE = (GRAN_ITBL_SIZE :: Int)
207 tICKY_ITBL_SIZE = (TICKY_ITBL_SIZE :: Int)
210 Size of a double in StgWords.
213 dOUBLE_SIZE = (DOUBLE_SIZE :: Int)
214 wORD64_SIZE = (WORD64_SIZE :: Int)
215 iNT64_SIZE = (INT64_SIZE :: Int)
218 The version of the interface file format we're using. It's propagated
219 here by a devious route from ghc/mk/version.mk. See comments
220 there for what it means.
223 interfaceFileFormatVersion :: Int
224 interfaceFileFormatVersion = HscIfaceFileVersion
227 This tells the native code generator the size of the spill
228 area is has available.
231 rESERVED_C_STACK_BYTES = (RESERVED_C_STACK_BYTES :: Int)
234 Size of a word, in bytes
237 wORD_SIZE = (WORD_SIZE :: Int)
240 Size of a storage manager block (in bytes).
243 bLOCK_SIZE = (BLOCK_SIZE :: Int)
244 bLOCK_SIZE_W = (bLOCK_SIZE `div` wORD_SIZE :: Int)