blob: 43db93249a656f695901f4a534a32eab19606338 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
|
%
% (c) The GRASP/AQUA Project, Glasgow University, 1992-1998
%
\section[Constants]{Info about this compilation}
\begin{code}
module Constants (module Constants) where
-- 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}
\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_FAMILY_SIZE_FOR_VEC_RETURNS = (MAX_VECTORED_RTN::Int) -- pretty arbitrary
-- If you change this, you may need to change runtimes/standard/Update.lhc
\end{code}
\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}
Info Table sizes.
\begin{code}
sTD_ITBL_SIZE = (STD_ITBL_SIZE :: Int)
rET_ITBL_SIZE = (RET_ITBL_SIZE :: Int)
pROF_ITBL_SIZE = (PROF_ITBL_SIZE :: Int)
gRAN_ITBL_SIZE = (GRAN_ITBL_SIZE :: Int)
tICKY_ITBL_SIZE = (TICKY_ITBL_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}
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}
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}
|
