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Merge branch 'master' into release_2_1_0

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Kevin Quick 2020-05-22 01:31:23 -07:00 committed by GitHub
commit 4a56736888
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1 changed files with 9 additions and 9 deletions
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18
macaw-ppc/src/Data/Macaw/PPC/Disassemble.hs
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@ -117,7 +117,7 @@ disassembleBlock lookupSemantics gs curIPAddr blockOff maxOffset = do
let seg = MM.segoffSegment curIPAddr
let off = MM.segoffOffset curIPAddr
case readInstruction curIPAddr of
Left err -> failAt gs off curIPAddr (DecodeError err)
Left err -> failAt gs blockOff curIPAddr (DecodeError err)
Right (i, bytesRead) -> do
-- traceM ("II: " ++ show i)
let nextIPOffset = off + bytesRead
@ -127,10 +127,10 @@ disassembleBlock lookupSemantics gs curIPAddr blockOff maxOffset = do
-- executes, rather than before as in X86. We have to pass in the
-- physical address of the instruction here.
ipVal <- case MM.asAbsoluteAddr (MM.segoffAddr curIPAddr) of
Nothing -> failAt gs off curIPAddr (InstructionAtUnmappedAddr i)
Nothing -> failAt gs blockOff curIPAddr (InstructionAtUnmappedAddr i)
Just addr -> return (BVValue (SP.addrWidth SP.knownVariant) (fromIntegral addr))
case lookupSemantics ipVal i of
Nothing -> failAt gs off curIPAddr (UnsupportedInstruction i)
Nothing -> failAt gs blockOff curIPAddr (UnsupportedInstruction i)
Just transformer -> do
-- Once we have the semantics for the instruction (represented by a
-- state transformer), we apply the state transformer and then extract
@ -141,7 +141,7 @@ disassembleBlock lookupSemantics gs curIPAddr blockOff maxOffset = do
addStmt (Comment (T.pack lineStr))
asAtomicStateUpdate (MM.segoffAddr curIPAddr) transformer)
case egs1 of
Left genErr -> failAt gs off curIPAddr (GenerationError i genErr)
Left genErr -> failAt gs blockOff curIPAddr (GenerationError i genErr)
Right gs1 -> do
case gs1 of
UnfinishedPartialBlock preBlock
@ -176,7 +176,7 @@ tryDisassembleBlock lookupSemantics nonceGen startAddr regState maxSize = do
(nextIPOffset, block) <- disassembleBlock lookupSemantics gs0 startAddr 0 (startOffset + fromIntegral maxSize)
unless (nextIPOffset > startOffset) $ do
let reason = InvalidNextIP (fromIntegral nextIPOffset) (fromIntegral startOffset)
failAt gs0 nextIPOffset startAddr reason
failAt gs0 0 startAddr reason
return (block, fromIntegral (nextIPOffset - startOffset))
-- | Disassemble a block from the given start address (which points into the
@ -202,11 +202,11 @@ disassembleFn :: (ppc ~ SP.AnyPPC var, PPCArchConstraints var)
disassembleFn _ lookupSemantics nonceGen startAddr regState maxSize = do
mr <- ET.runExceptT (unDisM (tryDisassembleBlock lookupSemantics nonceGen startAddr regState maxSize))
case mr of
Left (blocks, off, _exn) ->
Left (blocks, bytes, _exn) ->
-- Note that we discard exn here: it is actually extraneous since the
-- 'failAt' function converts exceptions raised during translation into
-- macaw 'TranslationError' block terminators.
return (blocks, off)
return (blocks, bytes)
Right (blocks, bytes) -> return (blocks, bytes)
type LocatedError ppc ids = (Block ppc ids, Int, TranslationError (ArchAddrWidth ppc))
@ -272,10 +272,10 @@ failAt :: forall v ids s a
-> MM.MemSegmentOff (SP.AddrWidth v)
-> TranslationErrorReason (SP.AddrWidth v)
-> DisM (SP.AnyPPC v) ids s a
failAt gs offset curIPAddr reason = do
failAt gs bytesConsumed curIPAddr reason = do
let exn = TranslationError { transErrorAddr = curIPAddr
, transErrorReason = reason
}
let term = (`TranslateError` T.pack (show exn))
let b = finishBlock' (gs ^. blockState) term
ET.throwError (b, fromIntegral offset, exn)
ET.throwError (b, fromIntegral bytesConsumed, exn)