blob: 9234210418a986970740d416c6b05a9e9f2f3b95 (
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
|
{-# LANGUAGE RecordWildCards, DeriveGeneric, GeneralizedNewtypeDeriving #-}
module GHCi.ResolvedBCO
( ResolvedBCO(..)
, ResolvedBCOPtr(..)
) where
import SizedSeq
import GHCi.RemoteTypes
import Data.Array.Unboxed
import Data.Binary
import GHC.Generics
-- -----------------------------------------------------------------------------
-- ResolvedBCO
-- A ResolvedBCO is one in which all the Name references have been
-- resolved to actual addresses or RemoteHValues.
data ResolvedBCO
= ResolvedBCO {
resolvedBCOArity :: Int,
resolvedBCOInstrs :: UArray Int Word16, -- insns
resolvedBCOBitmap :: UArray Int Word, -- bitmap
resolvedBCOLits :: UArray Int Word, -- non-ptrs
resolvedBCOPtrs :: (SizedSeq ResolvedBCOPtr) -- ptrs
}
deriving (Generic, Show)
instance Binary ResolvedBCO
data ResolvedBCOPtr
= ResolvedBCORef Int
-- ^ reference to the Nth BCO in the current set
| ResolvedBCOPtr HValueRef
-- ^ reference to a previously created BCO
| ResolvedBCOStaticPtr RemotePtr
-- ^ reference to a static ptr
| ResolvedBCOPtrBCO ResolvedBCO
-- ^ a nested BCO
| ResolvedBCOPtrLocal HValue
-- ^ something local, cannot be serialized
deriving (Generic, Show)
-- Manual Binary instance is needed because we cannot serialize
-- ResolvedBCOPtrLocal. This will go away once we have support for
-- remote breakpoints.
instance Binary ResolvedBCOPtr where
put (ResolvedBCORef a) = putWord8 0 >> put a
put (ResolvedBCOPtr a) = putWord8 1 >> put a
put (ResolvedBCOStaticPtr a) = putWord8 2 >> put a
put (ResolvedBCOPtrBCO a) = putWord8 3 >> put a
put (ResolvedBCOPtrLocal _) =
error "Cannot serialize a local pointer. Use -fno-external-interpreter?"
get = do
w <- getWord8
case w of
0 -> ResolvedBCORef <$> get
1 -> ResolvedBCOPtr <$> get
2 -> ResolvedBCOStaticPtr <$> get
_ -> ResolvedBCOPtrBCO <$> get
|
