X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=compiler%2Fghci%2FByteCodeFFI.lhs;h=9daef0ab6916aa179eeb794738ecccd7e122cf28;hp=61e70d64e4b99831e6812504fbb944ec20cb4064;hb=17b297d97d327620ed6bfab942f8992b2446f1bf;hpb=0065d5ab628975892cea1ec7303f968c3338cbe1 diff --git a/compiler/ghci/ByteCodeFFI.lhs b/compiler/ghci/ByteCodeFFI.lhs index 61e70d6..9daef0a 100644 --- a/compiler/ghci/ByteCodeFFI.lhs +++ b/compiler/ghci/ByteCodeFFI.lhs @@ -1,30 +1,39 @@ % -% (c) The University of Glasgow 2001 +% (c) The University of Glasgow 2001-2006 % -\section[ByteCodeGen]{Generate machine-code sequences for foreign import} + +ByteCodeGen: Generate machine-code sequences for foreign import \begin{code} -module ByteCodeFFI ( mkMarshalCode, moan64 ) where +{-# OPTIONS_GHC -w #-} +-- The above warning supression flag is a temporary kludge. +-- While working on this module you are encouraged to remove it and fix +-- any warnings in the module. See +-- http://hackage.haskell.org/trac/ghc/wiki/WorkingConventions#Warnings +-- for details + +module ByteCodeFFI ( mkMarshalCode, moan64, newExec ) where #include "HsVersions.h" import Outputable -import SMRep ( CgRep(..), cgRepSizeW ) -import ForeignCall ( CCallConv(..) ) +import SMRep +import ForeignCall import Panic -- DON'T remove apparently unused imports here .. -- there is ifdeffery below import Control.Exception ( throwDyn ) -import DATA_BITS ( Bits(..), shiftR, shiftL ) -import Foreign ( newArray ) +import Data.Bits ( Bits(..), shiftR, shiftL ) import Data.List ( mapAccumL ) -import DATA_WORD ( Word8, Word32 ) -import Foreign ( Ptr ) +import Data.Word ( Word8, Word32 ) +import Foreign ( Ptr, FunPtr, castPtrToFunPtr, + Storable, sizeOf, pokeArray ) +import Foreign.C ( CUInt ) import System.IO.Unsafe ( unsafePerformIO ) -import IO ( hPutStrLn, stderr ) -import Debug.Trace ( trace ) +import System.IO ( hPutStrLn, stderr ) +-- import Debug.Trace ( trace ) \end{code} %************************************************************************ @@ -70,14 +79,23 @@ we don't clear our own (single) arg off the C stack. -} mkMarshalCode :: CCallConv -> (Int, CgRep) -> Int -> [(Int, CgRep)] - -> IO (Ptr Word8) + -> IO (FunPtr ()) mkMarshalCode cconv (r_offW, r_rep) addr_offW arg_offs_n_reps = let bytes = mkMarshalCode_wrk cconv (r_offW, r_rep) addr_offW arg_offs_n_reps - in trace (show bytes) $ Foreign.newArray bytes - + in newExec bytes +newExec :: Storable a => [a] -> IO (FunPtr ()) +newExec code + = do ptr <- _allocateExec (fromIntegral $ codeSize undefined code) + pokeArray ptr code + return (castPtrToFunPtr ptr) + where + codeSize :: Storable a => a -> [a] -> Int + codeSize dummy array = sizeOf(dummy) * length array +foreign import ccall unsafe "allocateExec" + _allocateExec :: CUInt -> IO (Ptr a) mkMarshalCode_wrk :: CCallConv -> (Int, CgRep) -> Int -> [(Int, CgRep)] @@ -252,7 +270,7 @@ mkMarshalCode_wrk cconv (r_offW, r_rep) addr_offW arg_offs_n_reps NonPtrArg -> i32 DoubleArg -> f64 FloatArg -> f32 - -- LongArg -> i64 + LongArg -> i64 VoidArg -> [] other -> moan64 "ByteCodeFFI.mkMarshalCode_wrk(x86)" (ppr r_rep) @@ -345,15 +363,23 @@ mkMarshalCode_wrk cconv (r_offW, r_rep) addr_offW arg_offs_n_reps -- flt arg regs: xmm0..xmm7 int_loads = [ movq_rbpoff_rdi, movq_rbpoff_rsi, movq_rbpoff_rdx, movq_rbpoff_rcx, movq_rbpoff_r8, movq_rbpoff_r9 ] - float_loads = [ (mov_f32_rbpoff_xmm n, mov_f64_rbpoff_xmm n) | n <- [0..7] ] + float_loads = [ 0..7 ] load_arg_regs args [] [] code = (args, [], code) load_arg_regs [] iregs fregs code = ([], fregs, code) load_arg_regs ((off,rep):args) iregs fregs code - | FloatArg <- rep, ((mov_f32,_):frest) <- fregs = - load_arg_regs args iregs frest (mov_f32 (bytes_per_word * off) : code) - | DoubleArg <- rep, ((_,mov_f64):frest) <- fregs = - load_arg_regs args iregs frest (mov_f64 (bytes_per_word * off) : code) + | FloatArg <- rep = + case fregs of + [] -> push_this_arg + n : frest -> + load_arg_regs args iregs frest + (mov_f32_rbpoff_xmm n (bytes_per_word * off) : code) + | DoubleArg <- rep = + case fregs of + [] -> push_this_arg + n : frest -> + load_arg_regs args iregs frest + (mov_f64_rbpoff_xmm n (bytes_per_word * off) : code) | (mov_reg:irest) <- iregs = load_arg_regs args irest fregs (mov_reg (bytes_per_word * off) : code) | otherwise = @@ -398,17 +424,21 @@ mkMarshalCode_wrk cconv (r_offW, r_rep) addr_offW arg_offs_n_reps -- 2d: 4c 8b 95 78 56 34 12 mov 0x12345678(%rbp),%r10 -- 34: 48 c7 c0 78 56 34 12 mov $0x12345678,%rax -- 3b: 48 89 85 78 56 34 12 mov %rax,0x12345678(%rbp) --- 42: f3 0f 10 85 78 56 34 12 movss 0x12345678(%rbp),%xmm0 --- 4a: f2 0f 10 85 78 56 34 12 movsd 0x12345678(%rbp),%xmm0 --- 52: f3 0f 11 85 78 56 34 12 movss %xmm0,0x12345678(%rbp) --- 5a: f2 0f 11 85 78 56 34 12 movsd %xmm0,0x12345678(%rbp) --- 62: ff b5 78 56 34 12 pushq 0x12345678(%rbp) --- 68: f3 44 0f 11 04 24 movss %xmm8,(%rsp) --- 6e: f2 44 0f 11 04 24 movsd %xmm8,(%rsp) --- 74: 48 81 ec 78 56 34 12 sub $0x12345678,%rsp --- 7b: 48 81 c4 78 56 34 12 add $0x12345678,%rsp --- 82: 41 ff d2 callq *%r10 --- 85: c3 retq +-- 42: f3 0f 10 bd 78 56 34 12 movss 0x12345678(%rbp),%xmm7 +-- 4a: f2 0f 10 9d 78 56 34 12 movsd 0x12345678(%rbp),%xmm3 +-- 52: f2 44 0f 10 85 78 56 34 12 movsd 0x12345678(%rbp),%xmm8 +-- 5b: f3 0f 11 9d 78 56 34 12 movss %xmm3,0x12345678(%rbp) +-- 63: f2 0f 11 9d 78 56 34 12 movsd %xmm3,0x12345678(%rbp) +-- 6b: f2 44 0f 11 85 78 56 34 12 movsd %xmm8,0x12345678(%rbp) +-- 74: ff b5 78 56 34 12 pushq 0x12345678(%rbp) +-- 7a: f3 44 0f 11 04 24 movss %xmm8,(%rsp) +-- 80: f2 44 0f 11 04 24 movsd %xmm8,(%rsp) +-- 86: 48 81 ec 78 56 34 12 sub $0x12345678,%rsp +-- 8d: 48 81 c4 78 56 34 12 add $0x12345678,%rsp +-- 94: 41 ff d2 callq *%r10 +-- 97: 55 push %rbp +-- 98: 5d pop %rbp +-- 99: c3 retq movq_rdi_rbp = [0x48,0x89,0xfd] movq_rbpoff_rdi off = [0x48, 0x8b, 0xbd] ++ lit32 off @@ -420,19 +450,23 @@ mkMarshalCode_wrk cconv (r_offW, r_rep) addr_offW arg_offs_n_reps movq_rbpoff_r10 off = [0x4c, 0x8b, 0x95] ++ lit32 off movq_lit_rax lit = [0x48, 0xc7, 0xc0] ++ lit32 lit movq_rax_rbpoff off = [0x48, 0x89, 0x85] ++ lit32 off - mov_f32_rbpoff_xmm n off = [0xf3, 0x0f, 0x10, 0x85 + n`shiftL`3] ++ lit32 off - mov_f64_rbpoff_xmm n off = [0xf2, 0x0f, 0x10, 0x85 + n`shiftL`3] ++ lit32 off + mov_f32_rbpoff_xmm n off + = 0xf3 : if n >= 8 then 0x44 : rest else rest + where rest = [0x0f, 0x10, 0x85 + (n.&.7)`shiftL`3] ++ lit32 off + mov_f64_rbpoff_xmm n off + = 0xf2 : if n >= 8 then 0x44 : rest else rest + where rest = [0x0f, 0x10, 0x85 + (n.&.7)`shiftL`3] ++ lit32 off mov_f32_xmm0_rbpoff off = [0xf3, 0x0f, 0x11, 0x85] ++ lit32 off mov_f64_xmm0_rbpoff off = [0xf2, 0x0f, 0x11, 0x85] ++ lit32 off pushq_rbpoff off = [0xff, 0xb5] ++ lit32 off push_f32_rbpoff off = + subq_lit_rsp 8 ++ -- subq $8, %rsp mov_f32_rbpoff_xmm 8 off ++ -- movss off(%rbp), %xmm8 - [0xf3, 0x44, 0x0f, 0x11, 0x04, 0x24] ++ -- movss %xmm8, (%rsp) - subq_lit_rsp 8 -- subq $8, %rsp + [0xf3, 0x44, 0x0f, 0x11, 0x04, 0x24] -- movss %xmm8, (%rsp) push_f64_rbpoff off = + subq_lit_rsp 8 ++ -- subq $8, %rsp mov_f64_rbpoff_xmm 8 off ++ -- movsd off(%rbp), %xmm8 - [0xf2, 0x44, 0x0f, 0x11, 0x04, 0x24] ++ -- movsd %xmm8, (%rsp) - subq_lit_rsp 8 -- subq $8, %rsp + [0xf2, 0x44, 0x0f, 0x11, 0x04, 0x24] -- movsd %xmm8, (%rsp) subq_lit_rsp lit = [0x48, 0x81, 0xec] ++ lit32 lit addq_lit_rsp lit = [0x48, 0x81, 0xc4] ++ lit32 lit call_star_r10 = [0x41,0xff,0xd2]