X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=ghc%2Futils%2Fhsc2hs%2FMain.hs;h=f6f8ecb9ef5466c0f32851080b0bdac9ff28d8d6;hb=153b9cb9b11e05c4edb1b6bc0a7b972660e41f70;hp=97f722446ecc0ae8dd3d35080b097494d2fd1386;hpb=fb40b8b17e29bf1933ac27eb64ae95c0833b3727;p=ghc-hetmet.git diff --git a/ghc/utils/hsc2hs/Main.hs b/ghc/utils/hsc2hs/Main.hs index 97f7224..f6f8ecb 100644 --- a/ghc/utils/hsc2hs/Main.hs +++ b/ghc/utils/hsc2hs/Main.hs @@ -1,5 +1,7 @@ +{-# OPTIONS -fffi -cpp #-} + ------------------------------------------------------------------------ --- $Id: Main.hs,v 1.31 2001/07/23 23:08:04 ken Exp $ +-- $Id: Main.hs,v 1.69 2005/01/28 12:56:26 simonmar Exp $ -- -- Program for converting .hsc files to .hs files, by converting the -- file into a C program which is run to generate the Haskell source. @@ -9,16 +11,43 @@ -- -- See the documentation in the Users' Guide for more details. +#if defined(__GLASGOW_HASKELL__) && !defined(BUILD_NHC) +#include "../../includes/ghcconfig.h" +#endif + +#if __GLASGOW_HASKELL__ >= 504 || __NHC__ >= 114 || __HUGS__ +import System.Console.GetOpt +#else import GetOpt -import System (getProgName, getArgs, ExitCode(..), exitWith, exitFailure) -import KludgedSystem -import Directory (removeFile) -import Monad (MonadPlus(..), liftM, liftM2, when, unless) +#endif + +import System (getProgName, getArgs, ExitCode(..), exitWith, system) +import Directory (removeFile,doesFileExist) +import Monad (MonadPlus(..), liftM, liftM2, when) import Char (isAlpha, isAlphaNum, isSpace, isDigit, toUpper, intToDigit, ord) -import List (intersperse) +import List (intersperse, isSuffixOf) +import IO (hPutStr, hPutStrLn, stderr) + +#if defined(mingw32_HOST_OS) && !__HUGS__ +import Foreign +#if __GLASGOW_HASKELL__ >= 504 || __NHC__ >= 114 +import Foreign.C.String +#else +import CString +#endif +#endif + + +#if defined(__GLASGOW_HASKELL__) && !defined(BUILD_NHC) +import Compat.RawSystem ( rawSystem ) +#elif __HUGS__ || __NHC__ >= 117 || __GLASGOW_HASKELL__ >= 600 +import System.Cmd ( rawSystem ) +#else +rawSystem prog args = system (prog++" "++unwords args) +#endif version :: String -version = "hsc2hs-0.65" +version = "hsc2hs version 0.66\n" data Flag = Help @@ -32,6 +61,11 @@ data Flag | Include String | Define String (Maybe String) | Output String + | Verbose + +template_flag :: Flag -> Bool +template_flag (Template _) = True +template_flag _ = False include :: String -> Flag include s@('\"':_) = Include s @@ -45,48 +79,94 @@ define s = case break (== '=') s of options :: [OptDescr Flag] options = [ - Option "t" ["template"] (ReqArg Template "FILE") "template file", - Option "c" ["cc"] (ReqArg Compiler "PROG") "C compiler to use", - Option "l" ["ld"] (ReqArg Linker "PROG") "linker to use", - Option "C" ["cflag"] (ReqArg CompFlag "FLAG") "flag to pass to the C compiler", - Option "I" [] (ReqArg (CompFlag . ("-I"++)) - "DIR") "passed to the C compiler", - Option "L" ["lflag"] (ReqArg LinkFlag "FLAG") "flag to pass to the linker", - Option "i" ["include"] (ReqArg include "FILE") "as if placed in the source", - Option "D" ["define"] (ReqArg define "NAME[=VALUE]") "as if placed in the source", - Option "o" ["output"] (ReqArg Output "FILE") "name of main output file", - Option "" ["help"] (NoArg Help) "display this help and exit", - Option "" ["version"] (NoArg Version) "output version information and exit", - Option "" ["no-compile"] (NoArg NoCompile) "stop after writing *_hsc_make.c", + Option ['o'] ["output"] (ReqArg Output "FILE") + "name of main output file", + Option ['t'] ["template"] (ReqArg Template "FILE") + "template file", + Option ['c'] ["cc"] (ReqArg Compiler "PROG") + "C compiler to use", + Option ['l'] ["ld"] (ReqArg Linker "PROG") + "linker to use", + Option ['C'] ["cflag"] (ReqArg CompFlag "FLAG") + "flag to pass to the C compiler", + Option ['I'] [] (ReqArg (CompFlag . ("-I"++)) "DIR") + "passed to the C compiler", + Option ['L'] ["lflag"] (ReqArg LinkFlag "FLAG") + "flag to pass to the linker", + Option ['i'] ["include"] (ReqArg include "FILE") + "as if placed in the source", + Option ['D'] ["define"] (ReqArg define "NAME[=VALUE]") + "as if placed in the source", + Option [] ["no-compile"] (NoArg NoCompile) + "stop after writing *_hsc_make.c", + Option ['v'] ["verbose"] (NoArg Verbose) + "dump commands to stderr", + Option ['?'] ["help"] (NoArg Help) + "display this help and exit", + Option ['V'] ["version"] (NoArg Version) + "output version information and exit" ] + main :: IO () main = do - prog <- getProgName - let header = "Usage: "++prog++" [OPTIONS] INPUT.hsc [...]" + prog <- getProgramName + let header = "Usage: "++prog++" [OPTIONS] INPUT.hsc [...]\n" args <- getArgs - case getOpt Permute options args of - (flags, _, _) - | any isHelp flags -> putStrLn (usageInfo header options) - | any isVersion flags -> putStrLn version + let (flags, files, errs) = getOpt Permute options args + + -- If there is no Template flag explicitly specified, try + -- to find one by looking near the executable. This only + -- works on Win32 or Hugs (getExecDir). On Unix, there's a wrapper + -- script which specifies an explicit template flag. + flags_w_tpl <- if any template_flag flags then + return flags + else +#ifdef __HUGS__ + do mb_path <- getExecDir "/Main.hs" +#else + do mb_path <- getExecDir "/bin/hsc2hs.exe" +#endif + add_opt <- + case mb_path of + Nothing -> return id + Just path -> do + let templ = path ++ "/template-hsc.h" + flg <- doesFileExist templ + if flg + then return ((Template templ):) + else return id + return (add_opt flags) + case (files, errs) of + (_, _) + | any isHelp flags_w_tpl -> bye (usageInfo header options) + | any isVersion flags_w_tpl -> bye version where isHelp Help = True; isHelp _ = False isVersion Version = True; isVersion _ = False - (_, [], []) -> putStrLn (prog++": No input files") - (flags, files, []) -> mapM_ (processFile flags) files - (_, _, errs) -> do - mapM_ putStrLn errs - putStrLn (usageInfo header options) - exitFailure + ((_:_), []) -> mapM_ (processFile flags_w_tpl) files + (_, _ ) -> die (concat errs ++ usageInfo header options) + +getProgramName :: IO String +getProgramName = liftM (`withoutSuffix` "-bin") getProgName + where str `withoutSuffix` suff + | suff `isSuffixOf` str = take (length str - length suff) str + | otherwise = str + +bye :: String -> IO a +bye s = putStr s >> exitWith ExitSuccess + +die :: String -> IO a +die s = hPutStr stderr s >> exitWith (ExitFailure 1) processFile :: [Flag] -> String -> IO () -processFile flags name = do - s <- readFile name - case parser of - Parser p -> case p (SourcePos name 1) s of - Success _ _ _ toks -> output flags name toks - Failure (SourcePos name' line) msg -> do - putStrLn (name'++":"++show line++": "++msg) - exitFailure +processFile flags name + = do let file_name = dosifyPath name + s <- readFile file_name + case parser of + Parser p -> case p (SourcePos file_name 1) s of + Success _ _ _ toks -> output flags file_name toks + Failure (SourcePos name' line) msg -> + die (name'++":"++show line++": "++msg++"\n") ------------------------------------------------------------------------ -- A deterministic parser which remembers the text which has been parsed. @@ -414,14 +494,15 @@ output :: [Flag] -> String -> [Token] -> IO () output flags name toks = do (outName, outDir, outBase) <- case [f | Output f <- flags] of - [] - | not (null ext) && - last ext == 'c' -> return (dir++base++init ext, dir, base) - | ext == ".hs" -> return (dir++base++"_out.hs", dir, base) - | otherwise -> return (dir++base++".hs", dir, base) - where - (dir, file) = splitName name - (base, ext) = splitExt file + [] -> if not (null ext) && last ext == 'c' + then return (dir++base++init ext, dir, base) + else + if ext == ".hs" + then return (dir++base++"_out.hs", dir, base) + else return (dir++base++".hs", dir, base) + where + (dir, file) = splitName name + (base, ext) = splitExt file [f] -> let (dir, file) = splitName f (base, _) = splitExt file @@ -430,12 +511,20 @@ output flags name toks = do let cProgName = outDir++outBase++"_hsc_make.c" oProgName = outDir++outBase++"_hsc_make.o" - progName = outDir++outBase++"_hsc_make" ++ progNameSuffix - outHName = outDir++outBase++"_hsc.h" + progName = outDir++outBase++"_hsc_make" +#if defined(mingw32_HOST_OS) +-- This is a real hack, but the quoting mechanism used for calling the C preprocesseor +-- via GHC has changed a few times, so this seems to be the only way... :-P * * * + ++ ".exe" +#endif + outHFile = outBase++"_hsc.h" + outHName = outDir++outHFile outCName = outDir++outBase++"_hsc.c" + + beVerbose = any (\ x -> case x of { Verbose -> True; _ -> False}) flags let execProgName - | null outDir = "./"++progName + | null outDir = dosifyPath ("./" ++ progName) | otherwise = progName let specials = [(pos, key, arg) | Special pos key arg <- toks] @@ -447,80 +536,135 @@ output flags name toks = do where fixChar c | isAlphaNum c = toUpper c | otherwise = '_' - + +#ifdef __HUGS__ compiler <- case [c | Compiler c <- flags] of - [] -> return "ghc" + [] -> return "gcc" [c] -> return c _ -> onlyOne "compiler" linker <- case [l | Linker l <- flags] of - [] -> return defaultCompiler + [] -> return compiler [l] -> return l _ -> onlyOne "linker" +#else + -- Try locating GHC..on Win32, look in the vicinity of hsc2hs. + -- Returns a native-format path + locateGhc def = do + mb <- getExecDir "bin/hsc2hs.exe" + case mb of + Nothing -> return def + Just x -> do + let ghc_path = dosifyPath (x ++ "bin/ghc.exe") + flg <- doesFileExist ghc_path + if flg + then return ghc_path + else return def + + -- On a Win32 installation we execute the hsc2hs binary directly, + -- with no --cc flags, so we'll call locateGhc here, which will + -- succeed, via getExecDir. + -- + -- On a Unix installation, we'll run the wrapper script hsc2hs.sh + -- (called plain hsc2hs in the installed tree), which will pass + -- a suitable C compiler via --cc + -- + -- The in-place installation always uses the wrapper script, + -- (called hsc2hs-inplace, generated from hsc2hs.sh) + compiler <- case [c | Compiler c <- flags] of + [] -> locateGhc "ghc" + [c] -> return c + _ -> onlyOne "compiler" + linker <- case [l | Linker l <- flags] of + [] -> locateGhc compiler + [l] -> return l + _ -> onlyOne "linker" +#endif + writeFile cProgName $ concatMap outFlagHeaderCProg flags++ concatMap outHeaderCProg specials++ - "\nint main (void)\n{\n"++ + "\nint main (int argc, char *argv [])\n{\n"++ outHeaderHs flags (if needsH then Just outHName else Nothing) specials++ outHsLine (SourcePos name 0)++ concatMap outTokenHs toks++ " return 0;\n}\n" - unless (null [() | NoCompile <- flags]) $ exitWith ExitSuccess + -- NOTE: hbc compiles "[() | NoCompile <- flags]" into wrong code, + -- so we use something slightly more complicated. :-P + when (any (\x -> case x of NoCompile -> True; _ -> False) flags) $ + exitWith ExitSuccess + + - compilerStatus <- system $ - compiler++ - " -c"++ - concat [" "++f | CompFlag f <- flags]++ - " "++cProgName++ - " -o "++oProgName + compilerStatus <- rawSystemL beVerbose compiler + ( ["-c"] + ++ [f | CompFlag f <- flags] + ++ [cProgName] + ++ ["-o", oProgName] + ) + case compilerStatus of e@(ExitFailure _) -> exitWith e _ -> return () removeFile cProgName - linkerStatus <- system $ - linker++ - concat [" "++f | LinkFlag f <- flags]++ - " "++oProgName++ - " -o "++progName + linkerStatus <- rawSystemL beVerbose linker + ( [f | LinkFlag f <- flags] + ++ [oProgName] + ++ ["-o", progName] + ) + case linkerStatus of e@(ExitFailure _) -> exitWith e _ -> return () removeFile oProgName - system (execProgName++" >"++outName) + progStatus <- systemL beVerbose (execProgName++" >"++outName) removeFile progName + case progStatus of + e@(ExitFailure _) -> exitWith e + _ -> return () when needsH $ writeFile outHName $ - "#ifndef "++includeGuard++"\n\ - \#define "++includeGuard++"\n\ - \#if __GLASGOW_HASKELL__ && __GLASGOW_HASKELL__ < 409\n\ - \#include \n\ - \#endif\n\ - \#include \n\ - \#if __NHC__\n\ - \#undef HsChar\n\ - \#define HsChar int\n\ - \#endif\n"++ + "#ifndef "++includeGuard++"\n" ++ + "#define "++includeGuard++"\n" ++ + "#if __GLASGOW_HASKELL__ && __GLASGOW_HASKELL__ < 409\n" ++ + "#include \n" ++ + "#endif\n" ++ + "#include \n" ++ + "#if __NHC__\n" ++ + "#undef HsChar\n" ++ + "#define HsChar int\n" ++ + "#endif\n" ++ concatMap outFlagH flags++ concatMap outTokenH specials++ "#endif\n" when needsC $ writeFile outCName $ - "#include \""++outHName++"\"\n"++ + "#include \""++outHFile++"\"\n"++ concatMap outTokenC specials + -- NB. outHFile not outHName; works better when processed + -- by gcc or mkdependC. + +rawSystemL :: Bool -> String -> [String] -> IO ExitCode +rawSystemL flg prog args = do + when flg $ hPutStrLn stderr ("Executing: " ++ prog ++ concat (map (' ':) args)) + rawSystem prog args + +systemL :: Bool -> String -> IO ExitCode +systemL flg s = do + when flg (hPutStrLn stderr ("Executing: " ++ s)) + system s onlyOne :: String -> IO a -onlyOne what = do - putStrLn ("Only one "++what++" may be specified") - exitFailure +onlyOne what = die ("Only one "++what++" may be specified\n") outFlagHeaderCProg :: Flag -> String outFlagHeaderCProg (Template t) = "#include \""++t++"\"\n" outFlagHeaderCProg (Include f) = "#include "++f++"\n" -outFlagHeaderCProg (Define n Nothing) = "#define "++n++"\n" +outFlagHeaderCProg (Define n Nothing) = "#define "++n++" 1\n" outFlagHeaderCProg (Define n (Just v)) = "#define "++n++" "++v++"\n" outFlagHeaderCProg _ = "" @@ -539,18 +683,20 @@ outHeaderCProg (pos, key, arg) = case key of (header, _:body) -> case break isSpace header of (name, args) -> outCLine pos++ - "#define hsc_"++name++"("++dropWhile isSpace args++") \ - \printf ("++joinLines body++");\n" + "#define hsc_"++name++"("++dropWhile isSpace args++") " ++ + "printf ("++joinLines body++");\n" _ -> "" - where + where joinLines = concat . intersperse " \\\n" . lines outHeaderHs :: [Flag] -> Maybe String -> [(SourcePos, String, String)] -> String outHeaderHs flags inH toks = - "#if __GLASGOW_HASKELL__ && __GLASGOW_HASKELL__ < 409\n\ - \ printf (\"{-# OPTIONS -optc-D__GLASGOW_HASKELL__=%d #-}\\n\", \ - \__GLASGOW_HASKELL__);\n\ - \#endif\n"++ + "#if " ++ + "__GLASGOW_HASKELL__ && __GLASGOW_HASKELL__ < 409\n" ++ + " printf (\"{-# OPTIONS -optc-D" ++ + "__GLASGOW_HASKELL__=%d #-}\\n\", " ++ + "__GLASGOW_HASKELL__);\n" ++ + "#endif\n"++ case inH of Nothing -> concatMap outFlag flags++concatMap outSpecial toks Just f -> outOption ("-#include \""++f++"\"") @@ -577,9 +723,9 @@ outHeaderHs flags inH toks = showCString s++"\");\n" outTokenHs :: Token -> String -outTokenHs (Text pos text) = - case break (== '\n') text of - (all, []) -> outText all +outTokenHs (Text pos txt) = + case break (== '\n') txt of + (allTxt, []) -> outText allTxt (first, _:rest) -> outText (first++"\n")++ outHsLine pos++ @@ -608,19 +754,19 @@ outEnum arg = (enum, rest) -> let this = case break (== '=') $ dropWhile isSpace enum of (name, []) -> - " hsc_enum ("++t++", "++f++", \ - \hsc_haskellize (\""++name++"\"), "++ + " hsc_enum ("++t++", "++f++", " ++ + "hsc_haskellize (\""++name++"\"), "++ name++");\n" (hsName, _:cName) -> - " hsc_enum ("++t++", "++f++", \ - \printf (\"%s\", \""++hsName++"\"), "++ + " hsc_enum ("++t++", "++f++", " ++ + "printf (\"%s\", \""++hsName++"\"), "++ cName++");\n" in this++enums rest in enums afterF outFlagH :: Flag -> String outFlagH (Include f) = "#include "++f++"\n" -outFlagH (Define n Nothing) = "#define "++n++"\n" +outFlagH (Define n Nothing) = "#define "++n++" 1\n" outFlagH (Define n (Just v)) = "#define "++n++" "++v++"\n" outFlagH _ = "" @@ -634,12 +780,12 @@ outTokenH (pos, key, arg) = 's':'t':'r':'u':'c':'t':' ':_ -> arg++"\n" 't':'y':'p':'e':'d':'e':'f':' ':_ -> arg++"\n" 'i':'n':'l':'i':'n':'e':' ':_ -> - "#ifdef __GNUC__\n\ - \extern\n\ - \#endif\n"++ + "#ifdef __GNUC__\n" ++ + "extern\n" ++ + "#endif\n"++ arg++"\n" _ -> "extern "++header++";\n" - where header = takeWhile (\c -> c /= '{' && c /= '=') arg + where header = takeWhile (\c -> c /= '{' && c /= '=') arg _ | conditional key -> outCLine pos++"#"++key++" "++arg++"\n" _ -> "" @@ -653,13 +799,13 @@ outTokenC (pos, key, arg) = case span (\c -> c /= '{' && c /= '=') arg' of (header, body) -> outCLine pos++ - "#ifndef __GNUC__\n\ - \extern inline\n\ - \#endif\n"++ + "#ifndef __GNUC__\n" ++ + "extern inline\n" ++ + "#endif\n"++ header++ - "\n#ifndef __GNUC__\n\ - \;\n\ - \#else\n"++ + "\n#ifndef __GNUC__\n" ++ + ";\n" ++ + "#else\n"++ body++ "\n#endif\n" _ -> outCLine pos++arg++"\n" @@ -679,7 +825,7 @@ conditional _ = False outCLine :: SourcePos -> String outCLine (SourcePos name line) = - "# "++show line++" \""++showCString (snd (splitName name))++"\"\n" + "#line "++show line++" \""++showCString (snd (splitName name))++"\"\n" outHsLine :: SourcePos -> String outHsLine (SourcePos name line) = @@ -705,3 +851,49 @@ showCString = concatMap showCChar intToDigit (ord c `quot` 64), intToDigit (ord c `quot` 8 `mod` 8), intToDigit (ord c `mod` 8)] + + + +----------------------------------------- +-- Cut and pasted from ghc/compiler/SysTools +-- Convert paths foo/baz to foo\baz on Windows + +dosifyPath, unDosifyPath :: String -> String +#if defined(mingw32_HOST_OS) +dosifyPath xs = subst '/' '\\' xs +unDosifyPath xs = subst '\\' '/' xs + +subst :: Eq a => a -> a -> [a] -> [a] +subst a b ls = map (\ x -> if x == a then b else x) ls +#else +dosifyPath xs = xs +unDosifyPath xs = xs +#endif + +getExecDir :: String -> IO (Maybe String) +-- (getExecDir cmd) returns the directory in which the current +-- executable, which should be called 'cmd', is running +-- So if the full path is /a/b/c/d/e, and you pass "d/e" as cmd, +-- you'll get "/a/b/c" back as the result +#ifdef __HUGS__ +getExecDir cmd + = do + s <- getProgName + return (Just (reverse (drop (length cmd) (reverse (unDosifyPath s))))) +#elif defined(mingw32_HOST_OS) +getExecDir cmd + = allocaArray len $ \buf -> do + ret <- getModuleFileName nullPtr buf len + if ret == 0 then return Nothing + else do s <- peekCString buf + return (Just (reverse (drop (length cmd) + (reverse (unDosifyPath s))))) + where + len = 2048::Int -- Plenty, PATH_MAX is 512 under Win32. + +foreign import stdcall unsafe "GetModuleFileNameA" + getModuleFileName :: Ptr () -> CString -> Int -> IO Int32 + +#else +getExecDir _ = return Nothing +#endif