    {-# LANGUAGE ScopedTypeVariables #-}
    {-# LANGUAGE CPP #-}
    -----------------------------------------------------------------------------
    --
    -- Tasks running external programs for SysTools
    --
    -- (c) The GHC Team 2017
    --
    -----------------------------------------------------------------------------
    module GHC.SysTools.Tasks where

    import GHC.Prelude
    import GHC.Platform
    import GHC.ForeignSrcLang

    import GHC.CmmToLlvm.Base (LlvmVersion, llvmVersionStr, supportedLlvmVersionLowerBound, supportedLlvmVersionUpperBound, llvmVersionStr, parseLlvmVersion)

    import GHC.SysTools.Process
    import GHC.SysTools.Info

    import GHC.Driver.Session

    import GHC.Utils.Exception as Exception
    import GHC.Utils.Error
    import GHC.Utils.Outputable
    import GHC.Utils.Misc
    import GHC.Utils.Logger
    import GHC.Utils.TmpFs

    import Data.List (tails, isPrefixOf)
    import System.IO
    import System.Process

    {-
    ************************************************************************
    *                                                                      *
    \subsection{Running an external program}
    *                                                                      *
    ************************************************************************
    -}

    runUnlit :: Logger -> DynFlags -> [Option] -> IO ()
    runUnlit :: Logger -> DynFlags -> [Option] -> IO ()
    runUnlit Logger
    logger DynFlags
    dflags [Option]
    args = Logger -> DynFlags -> String -> IO () -> IO ()
    forall a. Logger -> DynFlags -> String -> IO a -> IO a
    traceToolCommand Logger
    logger DynFlags
    dflags String
    "unlit" (IO () -> IO ()) -> IO () -> IO ()
    forall a b. (a -> b) -> a -> b
    $ do
      let prog :: String
    prog = DynFlags -> String
    pgm_L DynFlags
    dflags
          opts :: [String]
    opts = DynFlags -> (DynFlags -> [String]) -> [String]
    forall a. DynFlags -> (DynFlags -> [a]) -> [a]
    getOpts DynFlags
    dflags DynFlags -> [String]
    opt_L
      Logger -> DynFlags -> String -> String -> [Option] -> IO ()
    runSomething Logger
    logger DynFlags
    dflags String
    "Literate pre-processor" String
    prog
                   ((String -> Option) -> [String] -> [Option]
    forall a b. (a -> b) -> [a] -> [b]
    map String -> Option
    Option [String]
    opts [Option] -> [Option] -> [Option]
    forall a. [a] -> [a] -> [a]
    ++ [Option]
    args)

    runCpp :: Logger -> DynFlags -> [Option] -> IO ()
    runCpp :: Logger -> DynFlags -> [Option] -> IO ()
    runCpp Logger
    logger DynFlags
    dflags [Option]
    args = Logger -> DynFlags -> String -> IO () -> IO ()
    forall a. Logger -> DynFlags -> String -> IO a -> IO a
    traceToolCommand Logger
    logger DynFlags
    dflags String
    "cpp" (IO () -> IO ()) -> IO () -> IO ()
    forall a b. (a -> b) -> a -> b
    $ do
      let (String
    p,[Option]
    args0) = DynFlags -> (String, [Option])
    pgm_P DynFlags
    dflags
          args1 :: [Option]
    args1 = (String -> Option) -> [String] -> [Option]
    forall a b. (a -> b) -> [a] -> [b]
    map String -> Option
    Option (DynFlags -> (DynFlags -> [String]) -> [String]
    forall a. DynFlags -> (DynFlags -> [a]) -> [a]
    getOpts DynFlags
    dflags DynFlags -> [String]
    opt_P)
          args2 :: [Option]
    args2 = [String -> Option
    Option String
    "-Werror" | GeneralFlag -> DynFlags -> Bool
    gopt GeneralFlag
    Opt_WarnIsError DynFlags
    dflags]
                    [Option] -> [Option] -> [Option]
    forall a. [a] -> [a] -> [a]
    ++ [String -> Option
    Option String
    "-Wundef" | WarningFlag -> DynFlags -> Bool
    wopt WarningFlag
    Opt_WarnCPPUndef DynFlags
    dflags]
      Maybe [(String, String)]
    mb_env <- [Option] -> IO (Maybe [(String, String)])
    getGccEnv [Option]
    args2
      Logger
    -> DynFlags
    -> (String -> String)
    -> String
    -> String
    -> [Option]
    -> Maybe String
    -> Maybe [(String, String)]
    -> IO ()
    runSomethingFiltered Logger
    logger DynFlags
    dflags String -> String
    forall a. a -> a
    id  String
    "C pre-processor" String
    p
                           ([Option]
    args0 [Option] -> [Option] -> [Option]
    forall a. [a] -> [a] -> [a]
    ++ [Option]
    args1 [Option] -> [Option] -> [Option]
    forall a. [a] -> [a] -> [a]
    ++ [Option]
    args2 [Option] -> [Option] -> [Option]
    forall a. [a] -> [a] -> [a]
    ++ [Option]
    args) Maybe String
    forall a. Maybe a
    Nothing Maybe [(String, String)]
    mb_env

    runPp :: Logger -> DynFlags -> [Option] -> IO ()
    runPp :: Logger -> DynFlags -> [Option] -> IO ()
    runPp Logger
    logger DynFlags
    dflags [Option]
    args = Logger -> DynFlags -> String -> IO () -> IO ()
    forall a. Logger -> DynFlags -> String -> IO a -> IO a
    traceToolCommand Logger
    logger DynFlags
    dflags String
    "pp" (IO () -> IO ()) -> IO () -> IO ()
    forall a b. (a -> b) -> a -> b
    $ do
      let prog :: String
    prog = DynFlags -> String
    pgm_F DynFlags
    dflags
          opts :: [Option]
    opts = (String -> Option) -> [String] -> [Option]
    forall a b. (a -> b) -> [a] -> [b]
    map String -> Option
    Option (DynFlags -> (DynFlags -> [String]) -> [String]
    forall a. DynFlags -> (DynFlags -> [a]) -> [a]
    getOpts DynFlags
    dflags DynFlags -> [String]
    opt_F)
      Logger -> DynFlags -> String -> String -> [Option] -> IO ()
    runSomething Logger
    logger DynFlags
    dflags String
    "Haskell pre-processor" String
    prog ([Option]
    args [Option] -> [Option] -> [Option]
    forall a. [a] -> [a] -> [a]
    ++ [Option]
    opts)

    -- | Run compiler of C-like languages and raw objects (such as gcc or clang).
    runCc :: Maybe ForeignSrcLang -> Logger -> TmpFs -> DynFlags -> [Option] -> IO ()
    runCc :: Maybe ForeignSrcLang
    -> Logger -> TmpFs -> DynFlags -> [Option] -> IO ()
    runCc Maybe ForeignSrcLang
    mLanguage Logger
    logger TmpFs
    tmpfs DynFlags
    dflags [Option]
    args = Logger -> DynFlags -> String -> IO () -> IO ()
    forall a. Logger -> DynFlags -> String -> IO a -> IO a
    traceToolCommand Logger
    logger DynFlags
    dflags String
    "cc" (IO () -> IO ()) -> IO () -> IO ()
    forall a b. (a -> b) -> a -> b
    $ do
      let p :: String
    p = DynFlags -> String
    pgm_c DynFlags
    dflags
          args1 :: [Option]
    args1 = (String -> Option) -> [String] -> [Option]
    forall a b. (a -> b) -> [a] -> [b]
    map String -> Option
    Option [String]
    userOpts
          args2 :: [Option]
    args2 = [Option]
    languageOptions [Option] -> [Option] -> [Option]
    forall a. [a] -> [a] -> [a]
    ++ [Option]
    args [Option] -> [Option] -> [Option]
    forall a. [a] -> [a] -> [a]
    ++ [Option]
    args1
          -- We take care to pass -optc flags in args1 last to ensure that the
          -- user can override flags passed by GHC. See #14452.
      Maybe [(String, String)]
    mb_env <- [Option] -> IO (Maybe [(String, String)])
    getGccEnv [Option]
    args2
      Logger
    -> TmpFs
    -> DynFlags
    -> (String -> String)
    -> String
    -> String
    -> [Option]
    -> Maybe [(String, String)]
    -> IO ()
    runSomethingResponseFile Logger
    logger TmpFs
    tmpfs DynFlags
    dflags String -> String
    cc_filter String
    "C Compiler" String
    p [Option]
    args2 Maybe [(String, String)]
    mb_env
     where
      -- discard some harmless warnings from gcc that we can't turn off
      cc_filter :: String -> String
    cc_filter = [String] -> String
    unlines ([String] -> String) -> (String -> [String]) -> String -> String
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . [String] -> [String]
    doFilter ([String] -> [String])
    -> (String -> [String]) -> String -> [String]
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . String -> [String]
    lines

      {-
      gcc gives warnings in chunks like so:
          In file included from /foo/bar/baz.h:11,
                           from /foo/bar/baz2.h:22,
                           from wibble.c:33:
          /foo/flibble:14: global register variable ...
          /foo/flibble:15: warning: call-clobbered r...
      We break it up into its chunks, remove any call-clobbered register
      warnings from each chunk, and then delete any chunks that we have
      emptied of warnings.
      -}
      doFilter :: [String] -> [String]
    doFilter = [([String], [String])] -> [String]
    unChunkWarnings ([([String], [String])] -> [String])
    -> ([String] -> [([String], [String])]) -> [String] -> [String]
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . [([String], [String])] -> [([String], [String])]
    filterWarnings ([([String], [String])] -> [([String], [String])])
    -> ([String] -> [([String], [String])])
    -> [String]
    -> [([String], [String])]
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . [String] -> [String] -> [([String], [String])]
    chunkWarnings []
      -- We can't assume that the output will start with an "In file inc..."
      -- line, so we start off expecting a list of warnings rather than a
      -- location stack.
      chunkWarnings :: [String] -- The location stack to use for the next
                                -- list of warnings
                    -> [String] -- The remaining lines to look at
                    -> [([String], [String])]
      chunkWarnings :: [String] -> [String] -> [([String], [String])]
    chunkWarnings [String]
    loc_stack [] = [([String]
    loc_stack, [])]
      chunkWarnings [String]
    loc_stack [String]
    xs
          = case (String -> Bool) -> [String] -> ([String], [String])
    forall a. (a -> Bool) -> [a] -> ([a], [a])
    break String -> Bool
    loc_stack_start [String]
    xs of
            ([String]
    warnings, String
    lss:[String]
    xs') ->
                case (String -> Bool) -> [String] -> ([String], [String])
    forall a. (a -> Bool) -> [a] -> ([a], [a])
    span String -> Bool
    loc_start_continuation [String]
    xs' of
                ([String]
    lsc, [String]
    xs'') ->
                    ([String]
    loc_stack, [String]
    warnings) ([String], [String])
    -> [([String], [String])] -> [([String], [String])]
    forall a. a -> [a] -> [a]
    : [String] -> [String] -> [([String], [String])]
    chunkWarnings (String
    lss String -> [String] -> [String]
    forall a. a -> [a] -> [a]
    : [String]
    lsc) [String]
    xs''
            ([String], [String])
    _ -> [([String]
    loc_stack, [String]
    xs)]

      filterWarnings :: [([String], [String])] -> [([String], [String])]
      filterWarnings :: [([String], [String])] -> [([String], [String])]
    filterWarnings [] = []
      -- If the warnings are already empty then we are probably doing
      -- something wrong, so don't delete anything
      filterWarnings (([String]
    xs, []) : [([String], [String])]
    zs) = ([String]
    xs, []) ([String], [String])
    -> [([String], [String])] -> [([String], [String])]
    forall a. a -> [a] -> [a]
    : [([String], [String])] -> [([String], [String])]
    filterWarnings [([String], [String])]
    zs
      filterWarnings (([String]
    xs, [String]
    ys) : [([String], [String])]
    zs) = case (String -> Bool) -> [String] -> [String]
    forall a. (a -> Bool) -> [a] -> [a]
    filter String -> Bool
    wantedWarning [String]
    ys of
                                           [] -> [([String], [String])] -> [([String], [String])]
    filterWarnings [([String], [String])]
    zs
                                           [String]
    ys' -> ([String]
    xs, [String]
    ys') ([String], [String])
    -> [([String], [String])] -> [([String], [String])]
    forall a. a -> [a] -> [a]
    : [([String], [String])] -> [([String], [String])]
    filterWarnings [([String], [String])]
    zs

      unChunkWarnings :: [([String], [String])] -> [String]
      unChunkWarnings :: [([String], [String])] -> [String]
    unChunkWarnings [] = []
      unChunkWarnings (([String]
    xs, [String]
    ys) : [([String], [String])]
    zs) = [String]
    xs [String] -> [String] -> [String]
    forall a. [a] -> [a] -> [a]
    ++ [String]
    ys [String] -> [String] -> [String]
    forall a. [a] -> [a] -> [a]
    ++ [([String], [String])] -> [String]
    unChunkWarnings [([String], [String])]
    zs

      loc_stack_start :: String -> Bool
    loc_stack_start        String
    s = String
    "In file included from " String -> String -> Bool
    forall a. Eq a => [a] -> [a] -> Bool
    `isPrefixOf` String
    s
      loc_start_continuation :: String -> Bool
    loc_start_continuation String
    s = String
    "                 from " String -> String -> Bool
    forall a. Eq a => [a] -> [a] -> Bool
    `isPrefixOf` String
    s
      wantedWarning :: String -> Bool
    wantedWarning String
    w
       | String
    "warning: call-clobbered register used" String -> String -> Bool
    `isContainedIn` String
    w = Bool
    False
       | Bool
    otherwise = Bool
    True

      -- force the C compiler to interpret this file as C when
      -- compiling .hc files, by adding the -x c option.
      -- Also useful for plain .c files, just in case GHC saw a
      -- -x c option.
      ([Option]
    languageOptions, [String]
    userOpts) = case Maybe ForeignSrcLang
    mLanguage of
        Maybe ForeignSrcLang
    Nothing -> ([], [String]
    userOpts_c)
        Just ForeignSrcLang
    language -> ([String -> Option
    Option String
    "-x", String -> Option
    Option String
    languageName], [String]
    opts)
          where
            (String
    languageName, [String]
    opts) = case ForeignSrcLang
    language of
              ForeignSrcLang
    LangC      -> (String
    "c",             [String]
    userOpts_c)
              ForeignSrcLang
    LangCxx    -> (String
    "c++",           [String]
    userOpts_cxx)
              ForeignSrcLang
    LangObjc   -> (String
    "objective-c",   [String]
    userOpts_c)
              ForeignSrcLang
    LangObjcxx -> (String
    "objective-c++", [String]
    userOpts_cxx)
              ForeignSrcLang
    LangAsm    -> (String
    "assembler",     [])
              ForeignSrcLang
    RawObject  -> (String
    "c",             []) -- claim C for lack of a better idea
      userOpts_c :: [String]
    userOpts_c   = DynFlags -> (DynFlags -> [String]) -> [String]
    forall a. DynFlags -> (DynFlags -> [a]) -> [a]
    getOpts DynFlags
    dflags DynFlags -> [String]
    opt_c
      userOpts_cxx :: [String]
    userOpts_cxx = DynFlags -> (DynFlags -> [String]) -> [String]
    forall a. DynFlags -> (DynFlags -> [a]) -> [a]
    getOpts DynFlags
    dflags DynFlags -> [String]
    opt_cxx

    isContainedIn :: String -> String -> Bool
    String
    xs isContainedIn :: String -> String -> Bool
    `isContainedIn` String
    ys = (String -> Bool) -> [String] -> Bool
    forall (t :: * -> *) a. Foldable t => (a -> Bool) -> t a -> Bool
    any (String
    xs String -> String -> Bool
    forall a. Eq a => [a] -> [a] -> Bool
    `isPrefixOf`) (String -> [String]
    forall a. [a] -> [[a]]
    tails String
    ys)

    -- | Run the linker with some arguments and return the output
    askLd :: Logger -> DynFlags -> [Option] -> IO String
    askLd :: Logger -> DynFlags -> [Option] -> IO String
    askLd Logger
    logger DynFlags
    dflags [Option]
    args = Logger -> DynFlags -> String -> IO String -> IO String
    forall a. Logger -> DynFlags -> String -> IO a -> IO a
    traceToolCommand Logger
    logger DynFlags
    dflags String
    "linker" (IO String -> IO String) -> IO String -> IO String
    forall a b. (a -> b) -> a -> b
    $ do
      let (String
    p,[Option]
    args0) = DynFlags -> (String, [Option])
    pgm_l DynFlags
    dflags
          args1 :: [Option]
    args1     = (String -> Option) -> [String] -> [Option]
    forall a b. (a -> b) -> [a] -> [b]
    map String -> Option
    Option (DynFlags -> (DynFlags -> [String]) -> [String]
    forall a. DynFlags -> (DynFlags -> [a]) -> [a]
    getOpts DynFlags
    dflags DynFlags -> [String]
    opt_l)
          args2 :: [Option]
    args2     = [Option]
    args0 [Option] -> [Option] -> [Option]
    forall a. [a] -> [a] -> [a]
    ++ [Option]
    args1 [Option] -> [Option] -> [Option]
    forall a. [a] -> [a] -> [a]
    ++ [Option]
    args
      Maybe [(String, String)]
    mb_env <- [Option] -> IO (Maybe [(String, String)])
    getGccEnv [Option]
    args2
      Logger
    -> DynFlags
    -> String
    -> String
    -> [Option]
    -> ([String] -> IO (ExitCode, String))
    -> IO String
    forall a.
    Logger
    -> DynFlags
    -> String
    -> String
    -> [Option]
    -> ([String] -> IO (ExitCode, a))
    -> IO a
    runSomethingWith Logger
    logger DynFlags
    dflags String
    "gcc" String
    p [Option]
    args2 (([String] -> IO (ExitCode, String)) -> IO String)
    -> ([String] -> IO (ExitCode, String)) -> IO String
    forall a b. (a -> b) -> a -> b
    $ \[String]
    real_args ->
        CreateProcess -> IO (ExitCode, String)
    readCreateProcessWithExitCode' (String -> [String] -> CreateProcess
    proc String
    p [String]
    real_args){ env :: Maybe [(String, String)]
    env = Maybe [(String, String)]
    mb_env }

    runAs :: Logger -> DynFlags -> [Option] -> IO ()
    runAs :: Logger -> DynFlags -> [Option] -> IO ()
    runAs Logger
    logger DynFlags
    dflags [Option]
    args = Logger -> DynFlags -> String -> IO () -> IO ()
    forall a. Logger -> DynFlags -> String -> IO a -> IO a
    traceToolCommand Logger
    logger DynFlags
    dflags String
    "as" (IO () -> IO ()) -> IO () -> IO ()
    forall a b. (a -> b) -> a -> b
    $ do
      let (String
    p,[Option]
    args0) = DynFlags -> (String, [Option])
    pgm_a DynFlags
    dflags
          args1 :: [Option]
    args1 = (String -> Option) -> [String] -> [Option]
    forall a b. (a -> b) -> [a] -> [b]
    map String -> Option
    Option (DynFlags -> (DynFlags -> [String]) -> [String]
    forall a. DynFlags -> (DynFlags -> [a]) -> [a]
    getOpts DynFlags
    dflags DynFlags -> [String]
    opt_a)
          args2 :: [Option]
    args2 = [Option]
    args0 [Option] -> [Option] -> [Option]
    forall a. [a] -> [a] -> [a]
    ++ [Option]
    args1 [Option] -> [Option] -> [Option]
    forall a. [a] -> [a] -> [a]
    ++ [Option]
    args
      Maybe [(String, String)]
    mb_env <- [Option] -> IO (Maybe [(String, String)])
    getGccEnv [Option]
    args2
      Logger
    -> DynFlags
    -> (String -> String)
    -> String
    -> String
    -> [Option]
    -> Maybe String
    -> Maybe [(String, String)]
    -> IO ()
    runSomethingFiltered Logger
    logger DynFlags
    dflags String -> String
    forall a. a -> a
    id String
    "Assembler" String
    p [Option]
    args2 Maybe String
    forall a. Maybe a
    Nothing Maybe [(String, String)]
    mb_env

    -- | Run the LLVM Optimiser
    runLlvmOpt :: Logger -> DynFlags -> [Option] -> IO ()
    runLlvmOpt :: Logger -> DynFlags -> [Option] -> IO ()
    runLlvmOpt Logger
    logger DynFlags
    dflags [Option]
    args = Logger -> DynFlags -> String -> IO () -> IO ()
    forall a. Logger -> DynFlags -> String -> IO a -> IO a
    traceToolCommand Logger
    logger DynFlags
    dflags String
    "opt" (IO () -> IO ()) -> IO () -> IO ()
    forall a b. (a -> b) -> a -> b
    $ do
      let (String
    p,[Option]
    args0) = DynFlags -> (String, [Option])
    pgm_lo DynFlags
    dflags
          args1 :: [Option]
    args1 = (String -> Option) -> [String] -> [Option]
    forall a b. (a -> b) -> [a] -> [b]
    map String -> Option
    Option (DynFlags -> (DynFlags -> [String]) -> [String]
    forall a. DynFlags -> (DynFlags -> [a]) -> [a]
    getOpts DynFlags
    dflags DynFlags -> [String]
    opt_lo)
          -- We take care to pass -optlo flags (e.g. args0) last to ensure that the
          -- user can override flags passed by GHC. See #14821.
      Logger -> DynFlags -> String -> String -> [Option] -> IO ()
    runSomething Logger
    logger DynFlags
    dflags String
    "LLVM Optimiser" String
    p ([Option]
    args1 [Option] -> [Option] -> [Option]
    forall a. [a] -> [a] -> [a]
    ++ [Option]
    args [Option] -> [Option] -> [Option]
    forall a. [a] -> [a] -> [a]
    ++ [Option]
    args0)

    -- | Run the LLVM Compiler
    runLlvmLlc :: Logger -> DynFlags -> [Option] -> IO ()
    runLlvmLlc :: Logger -> DynFlags -> [Option] -> IO ()
    runLlvmLlc Logger
    logger DynFlags
    dflags [Option]
    args = Logger -> DynFlags -> String -> IO () -> IO ()
    forall a. Logger -> DynFlags -> String -> IO a -> IO a
    traceToolCommand Logger
    logger DynFlags
    dflags String
    "llc" (IO () -> IO ()) -> IO () -> IO ()
    forall a b. (a -> b) -> a -> b
    $ do
      let (String
    p,[Option]
    args0) = DynFlags -> (String, [Option])
    pgm_lc DynFlags
    dflags
          args1 :: [Option]
    args1 = (String -> Option) -> [String] -> [Option]
    forall a b. (a -> b) -> [a] -> [b]
    map String -> Option
    Option (DynFlags -> (DynFlags -> [String]) -> [String]
    forall a. DynFlags -> (DynFlags -> [a]) -> [a]
    getOpts DynFlags
    dflags DynFlags -> [String]
    opt_lc)
      Logger -> DynFlags -> String -> String -> [Option] -> IO ()
    runSomething Logger
    logger DynFlags
    dflags String
    "LLVM Compiler" String
    p ([Option]
    args0 [Option] -> [Option] -> [Option]
    forall a. [a] -> [a] -> [a]
    ++ [Option]
    args1 [Option] -> [Option] -> [Option]
    forall a. [a] -> [a] -> [a]
    ++ [Option]
    args)

    -- | Run the clang compiler (used as an assembler for the LLVM
    -- backend on OS X as LLVM doesn't support the OS X system
    -- assembler)
    runClang :: Logger -> DynFlags -> [Option] -> IO ()
    runClang :: Logger -> DynFlags -> [Option] -> IO ()
    runClang Logger
    logger DynFlags
    dflags [Option]
    args = Logger -> DynFlags -> String -> IO () -> IO ()
    forall a. Logger -> DynFlags -> String -> IO a -> IO a
    traceToolCommand Logger
    logger DynFlags
    dflags String
    "clang" (IO () -> IO ()) -> IO () -> IO ()
    forall a b. (a -> b) -> a -> b
    $ do
      let (String
    clang,[Option]
    _) = DynFlags -> (String, [Option])
    pgm_lcc DynFlags
    dflags
          -- be careful what options we call clang with
          -- see #5903 and #7617 for bugs caused by this.
          (String
    _,[Option]
    args0) = DynFlags -> (String, [Option])
    pgm_a DynFlags
    dflags
          args1 :: [Option]
    args1 = (String -> Option) -> [String] -> [Option]
    forall a b. (a -> b) -> [a] -> [b]
    map String -> Option
    Option (DynFlags -> (DynFlags -> [String]) -> [String]
    forall a. DynFlags -> (DynFlags -> [a]) -> [a]
    getOpts DynFlags
    dflags DynFlags -> [String]
    opt_a)
          args2 :: [Option]
    args2 = [Option]
    args0 [Option] -> [Option] -> [Option]
    forall a. [a] -> [a] -> [a]
    ++ [Option]
    args1 [Option] -> [Option] -> [Option]
    forall a. [a] -> [a] -> [a]
    ++ [Option]
    args
      Maybe [(String, String)]
    mb_env <- [Option] -> IO (Maybe [(String, String)])
    getGccEnv [Option]
    args2
      IO () -> (SomeException -> IO ()) -> IO ()
    forall e a. Exception e => IO a -> (e -> IO a) -> IO a
    catch
        (Logger
    -> DynFlags
    -> (String -> String)
    -> String
    -> String
    -> [Option]
    -> Maybe String
    -> Maybe [(String, String)]
    -> IO ()
    runSomethingFiltered Logger
    logger DynFlags
    dflags String -> String
    forall a. a -> a
    id String
    "Clang (Assembler)" String
    clang [Option]
    args2 Maybe String
    forall a. Maybe a
    Nothing Maybe [(String, String)]
    mb_env)
        (\(SomeException
    err :: SomeException) -> do
            Logger -> DynFlags -> SDoc -> IO ()
    errorMsg Logger
    logger DynFlags
    dflags (SDoc -> IO ()) -> SDoc -> IO ()
    forall a b. (a -> b) -> a -> b
    $
                String -> SDoc
    text (String
    "Error running clang! you need clang installed to use the" String -> String -> String
    forall a. [a] -> [a] -> [a]
    ++
                      String
    " LLVM backend") SDoc -> SDoc -> SDoc
    $+$
                String -> SDoc
    text String
    "(or GHC tried to execute clang incorrectly)"
            SomeException -> IO ()
    forall e a. Exception e => e -> IO a
    throwIO SomeException
    err
        )

    -- | Figure out which version of LLVM we are running this session
    figureLlvmVersion :: Logger -> DynFlags -> IO (Maybe LlvmVersion)
    figureLlvmVersion :: Logger -> DynFlags -> IO (Maybe LlvmVersion)
    figureLlvmVersion Logger
    logger DynFlags
    dflags = Logger
    -> DynFlags
    -> String
    -> IO (Maybe LlvmVersion)
    -> IO (Maybe LlvmVersion)
    forall a. Logger -> DynFlags -> String -> IO a -> IO a
    traceToolCommand Logger
    logger DynFlags
    dflags String
    "llc" (IO (Maybe LlvmVersion) -> IO (Maybe LlvmVersion))
    -> IO (Maybe LlvmVersion) -> IO (Maybe LlvmVersion)
    forall a b. (a -> b) -> a -> b
    $ do
      let (String
    pgm,[Option]
    opts) = DynFlags -> (String, [Option])
    pgm_lc DynFlags
    dflags
          args :: [String]
    args = (String -> Bool) -> [String] -> [String]
    forall a. (a -> Bool) -> [a] -> [a]
    filter String -> Bool
    forall (f :: * -> *) a. Foldable f => f a -> Bool
    notNull ((Option -> String) -> [Option] -> [String]
    forall a b. (a -> b) -> [a] -> [b]
    map Option -> String
    showOpt [Option]
    opts)
          -- we grab the args even though they should be useless just in
          -- case the user is using a customised 'llc' that requires some
          -- of the options they've specified. llc doesn't care what other
          -- options are specified when '-version' is used.
          args' :: [String]
    args' = [String]
    args [String] -> [String] -> [String]
    forall a. [a] -> [a] -> [a]
    ++ [String
    "-version"]
      IO (Maybe LlvmVersion)
    -> (IOException -> IO (Maybe LlvmVersion))
    -> IO (Maybe LlvmVersion)
    forall a. IO a -> (IOException -> IO a) -> IO a
    catchIO (do
                  (Handle
    pin, Handle
    pout, Handle
    perr, ProcessHandle
    p) <- String
    -> [String]
    -> Maybe String
    -> Maybe [(String, String)]
    -> IO (Handle, Handle, Handle, ProcessHandle)
    runInteractiveProcess String
    pgm [String]
    args'
                                                  Maybe String
    forall a. Maybe a
    Nothing Maybe [(String, String)]
    forall a. Maybe a
    Nothing
                  {- > llc -version
                      LLVM (http://llvm.org/):
                        LLVM version 3.5.2
                        ...
                  -}
                  Handle -> Bool -> IO ()
    hSetBinaryMode Handle
    pout Bool
    False
                  String
    _     <- Handle -> IO String
    hGetLine Handle
    pout
                  String
    vline <- Handle -> IO String
    hGetLine Handle
    pout
                  let mb_ver :: Maybe LlvmVersion
    mb_ver = String -> Maybe LlvmVersion
    parseLlvmVersion String
    vline
                  Handle -> IO ()
    hClose Handle
    pin
                  Handle -> IO ()
    hClose Handle
    pout
                  Handle -> IO ()
    hClose Handle
    perr
                  ExitCode
    _ <- ProcessHandle -> IO ExitCode
    waitForProcess ProcessHandle
    p
                  Maybe LlvmVersion -> IO (Maybe LlvmVersion)
    forall (m :: * -> *) a. Monad m => a -> m a
    return Maybe LlvmVersion
    mb_ver
                )
                (\IOException
    err -> do
                    Logger -> DynFlags -> Int -> SDoc -> IO ()
    debugTraceMsg Logger
    logger DynFlags
    dflags Int
    2
                        (String -> SDoc
    text String
    "Error (figuring out LLVM version):" SDoc -> SDoc -> SDoc
    <+>
                          String -> SDoc
    text (IOException -> String
    forall a. Show a => a -> String
    show IOException
    err))
                    Logger -> DynFlags -> SDoc -> IO ()
    errorMsg Logger
    logger DynFlags
    dflags (SDoc -> IO ()) -> SDoc -> IO ()
    forall a b. (a -> b) -> a -> b
    $ [SDoc] -> SDoc
    vcat
                        [ String -> SDoc
    text String
    "Warning:", Int -> SDoc -> SDoc
    nest Int
    9 (SDoc -> SDoc) -> SDoc -> SDoc
    forall a b. (a -> b) -> a -> b
    $
                              String -> SDoc
    text String
    "Couldn't figure out LLVM version!" SDoc -> SDoc -> SDoc
    $$
                              String -> SDoc
    text (String
    "Make sure you have installed LLVM between ["
                                    String -> String -> String
    forall a. [a] -> [a] -> [a]
    ++ LlvmVersion -> String
    llvmVersionStr LlvmVersion
    supportedLlvmVersionLowerBound
                                    String -> String -> String
    forall a. [a] -> [a] -> [a]
    ++ String
    " and "
                                    String -> String -> String
    forall a. [a] -> [a] -> [a]
    ++ LlvmVersion -> String
    llvmVersionStr LlvmVersion
    supportedLlvmVersionUpperBound
                                    String -> String -> String
    forall a. [a] -> [a] -> [a]
    ++ String
    ")") ]
                    Maybe LlvmVersion -> IO (Maybe LlvmVersion)
    forall (m :: * -> *) a. Monad m => a -> m a
    return Maybe LlvmVersion
    forall a. Maybe a
    Nothing)

    runLink :: Logger -> TmpFs -> DynFlags -> [Option] -> IO ()
    runLink :: Logger -> TmpFs -> DynFlags -> [Option] -> IO ()
    runLink Logger
    logger TmpFs
    tmpfs DynFlags
    dflags [Option]
    args = Logger -> DynFlags -> String -> IO () -> IO ()
    forall a. Logger -> DynFlags -> String -> IO a -> IO a
    traceToolCommand Logger
    logger DynFlags
    dflags String
    "linker" (IO () -> IO ()) -> IO () -> IO ()
    forall a b. (a -> b) -> a -> b
    $ do
      -- See Note [Run-time linker info]
      --
      -- `-optl` args come at the end, so that later `-l` options
      -- given there manually can fill in symbols needed by
      -- Haskell libraries coming in via `args`.
      [Option]
    linkargs <- LinkerInfo -> [Option]
    neededLinkArgs (LinkerInfo -> [Option]) -> IO LinkerInfo -> IO [Option]
    forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
    `fmap` Logger -> DynFlags -> IO LinkerInfo
    getLinkerInfo Logger
    logger DynFlags
    dflags
      let (String
    p,[Option]
    args0) = DynFlags -> (String, [Option])
    pgm_l DynFlags
    dflags
          optl_args :: [Option]
    optl_args = (String -> Option) -> [String] -> [Option]
    forall a b. (a -> b) -> [a] -> [b]
    map String -> Option
    Option (DynFlags -> (DynFlags -> [String]) -> [String]
    forall a. DynFlags -> (DynFlags -> [a]) -> [a]
    getOpts DynFlags
    dflags DynFlags -> [String]
    opt_l)
          args2 :: [Option]
    args2     = [Option]
    args0 [Option] -> [Option] -> [Option]
    forall a. [a] -> [a] -> [a]
    ++ [Option]
    linkargs [Option] -> [Option] -> [Option]
    forall a. [a] -> [a] -> [a]
    ++ [Option]
    args [Option] -> [Option] -> [Option]
    forall a. [a] -> [a] -> [a]
    ++ [Option]
    optl_args
      Maybe [(String, String)]
    mb_env <- [Option] -> IO (Maybe [(String, String)])
    getGccEnv [Option]
    args2
      Logger
    -> TmpFs
    -> DynFlags
    -> (String -> String)
    -> String
    -> String
    -> [Option]
    -> Maybe [(String, String)]
    -> IO ()
    runSomethingResponseFile Logger
    logger TmpFs
    tmpfs DynFlags
    dflags String -> String
    ld_filter String
    "Linker" String
    p [Option]
    args2 Maybe [(String, String)]
    mb_env
      where
        ld_filter :: String -> String
    ld_filter = case (Platform -> OS
    platformOS (DynFlags -> Platform
    targetPlatform DynFlags
    dflags)) of
                      OS
    OSSolaris2 -> String -> String
    sunos_ld_filter
                      OS
    _ -> String -> String
    forall a. a -> a
    id
    {-
      SunOS/Solaris ld emits harmless warning messages about unresolved
      symbols in case of compiling into shared library when we do not
      link against all the required libs. That is the case of GHC which
      does not link against RTS library explicitly in order to be able to
      choose the library later based on binary application linking
      parameters. The warnings look like:

    Undefined                       first referenced
      symbol                             in file
    stg_ap_n_fast                       ./T2386_Lib.o
    stg_upd_frame_info                  ./T2386_Lib.o
    templatezmhaskell_LanguageziHaskellziTHziLib_litE_closure ./T2386_Lib.o
    templatezmhaskell_LanguageziHaskellziTHziLib_appE_closure ./T2386_Lib.o
    templatezmhaskell_LanguageziHaskellziTHziLib_conE_closure ./T2386_Lib.o
    templatezmhaskell_LanguageziHaskellziTHziSyntax_mkNameGzud_closure ./T2386_Lib.o
    newCAF                              ./T2386_Lib.o
    stg_bh_upd_frame_info               ./T2386_Lib.o
    stg_ap_ppp_fast                     ./T2386_Lib.o
    templatezmhaskell_LanguageziHaskellziTHziLib_stringL_closure ./T2386_Lib.o
    stg_ap_p_fast                       ./T2386_Lib.o
    stg_ap_pp_fast                      ./T2386_Lib.o
    ld: warning: symbol referencing errors

      this is actually coming from T2386 testcase. The emitting of those
      warnings is also a reason why so many TH testcases fail on Solaris.

      Following filter code is SunOS/Solaris linker specific and should
      filter out only linker warnings. Please note that the logic is a
      little bit more complex due to the simple reason that we need to preserve
      any other linker emitted messages. If there are any. Simply speaking
      if we see "Undefined" and later "ld: warning:..." then we omit all
      text between (including) the marks. Otherwise we copy the whole output.
    -}
        sunos_ld_filter :: String -> String
        sunos_ld_filter :: String -> String
    sunos_ld_filter = [String] -> String
    unlines ([String] -> String) -> (String -> [String]) -> String -> String
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . [String] -> [String]
    sunos_ld_filter' ([String] -> [String])
    -> (String -> [String]) -> String -> [String]
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . String -> [String]
    lines
        sunos_ld_filter' :: [String] -> [String]
    sunos_ld_filter' [String]
    x = if ([String] -> Bool
    undefined_found [String]
    x Bool -> Bool -> Bool
    && [String] -> Bool
    ld_warning_found [String]
    x)
                              then ([String] -> [String]
    ld_prefix [String]
    x) [String] -> [String] -> [String]
    forall a. [a] -> [a] -> [a]
    ++ ([String] -> [String]
    ld_postfix [String]
    x)
                              else [String]
    x
        breakStartsWith :: [a] -> [[a]] -> ([[a]], [[a]])
    breakStartsWith [a]
    x [[a]]
    y = ([a] -> Bool) -> [[a]] -> ([[a]], [[a]])
    forall a. (a -> Bool) -> [a] -> ([a], [a])
    break ([a] -> [a] -> Bool
    forall a. Eq a => [a] -> [a] -> Bool
    isPrefixOf [a]
    x) [[a]]
    y
        ld_prefix :: [String] -> [String]
    ld_prefix = ([String], [String]) -> [String]
    forall a b. (a, b) -> a
    fst (([String], [String]) -> [String])
    -> ([String] -> ([String], [String])) -> [String] -> [String]
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . String -> [String] -> ([String], [String])
    forall {a}. Eq a => [a] -> [[a]] -> ([[a]], [[a]])
    breakStartsWith String
    "Undefined"
        undefined_found :: [String] -> Bool
    undefined_found = Bool -> Bool
    not (Bool -> Bool) -> ([String] -> Bool) -> [String] -> Bool
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . [String] -> Bool
    forall (t :: * -> *) a. Foldable t => t a -> Bool
    null ([String] -> Bool) -> ([String] -> [String]) -> [String] -> Bool
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . ([String], [String]) -> [String]
    forall a b. (a, b) -> b
    snd (([String], [String]) -> [String])
    -> ([String] -> ([String], [String])) -> [String] -> [String]
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . String -> [String] -> ([String], [String])
    forall {a}. Eq a => [a] -> [[a]] -> ([[a]], [[a]])
    breakStartsWith String
    "Undefined"
        ld_warn_break :: [String] -> ([String], [String])
    ld_warn_break = String -> [String] -> ([String], [String])
    forall {a}. Eq a => [a] -> [[a]] -> ([[a]], [[a]])
    breakStartsWith String
    "ld: warning: symbol referencing errors"
        ld_postfix :: [String] -> [String]
    ld_postfix = [String] -> [String]
    forall a. [a] -> [a]
    tail ([String] -> [String])
    -> ([String] -> [String]) -> [String] -> [String]
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . ([String], [String]) -> [String]
    forall a b. (a, b) -> b
    snd (([String], [String]) -> [String])
    -> ([String] -> ([String], [String])) -> [String] -> [String]
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . [String] -> ([String], [String])
    ld_warn_break
        ld_warning_found :: [String] -> Bool
    ld_warning_found = Bool -> Bool
    not (Bool -> Bool) -> ([String] -> Bool) -> [String] -> Bool
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . [String] -> Bool
    forall (t :: * -> *) a. Foldable t => t a -> Bool
    null ([String] -> Bool) -> ([String] -> [String]) -> [String] -> Bool
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . ([String], [String]) -> [String]
    forall a b. (a, b) -> b
    snd (([String], [String]) -> [String])
    -> ([String] -> ([String], [String])) -> [String] -> [String]
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . [String] -> ([String], [String])
    ld_warn_break

    -- See Note [Merging object files for GHCi] in GHC.Driver.Pipeline.
    runMergeObjects :: Logger -> TmpFs -> DynFlags -> [Option] -> IO ()
    #if defined(mingw32_HOST_OS)
    runMergeObjects logger tmpfs  dflags args =
    #else
    runMergeObjects :: Logger -> TmpFs -> DynFlags -> [Option] -> IO ()
    runMergeObjects Logger
    logger TmpFs
    _tmpfs DynFlags
    dflags [Option]
    args =
    #endif
      Logger -> DynFlags -> String -> IO () -> IO ()
    forall a. Logger -> DynFlags -> String -> IO a -> IO a
    traceToolCommand Logger
    logger DynFlags
    dflags String
    "merge-objects" (IO () -> IO ()) -> IO () -> IO ()
    forall a b. (a -> b) -> a -> b
    $ do
        let (String
    p,[Option]
    args0) = DynFlags -> (String, [Option])
    pgm_lm DynFlags
    dflags
            optl_args :: [Option]
    optl_args = (String -> Option) -> [String] -> [Option]
    forall a b. (a -> b) -> [a] -> [b]
    map String -> Option
    Option (DynFlags -> (DynFlags -> [String]) -> [String]
    forall a. DynFlags -> (DynFlags -> [a]) -> [a]
    getOpts DynFlags
    dflags DynFlags -> [String]
    opt_lm)
            args2 :: [Option]
    args2     = [Option]
    args0 [Option] -> [Option] -> [Option]
    forall a. [a] -> [a] -> [a]
    ++ [Option]
    args [Option] -> [Option] -> [Option]
    forall a. [a] -> [a] -> [a]
    ++ [Option]
    optl_args
        -- N.B. Darwin's ld64 doesn't support response files. Consequently we only
        -- use them on Windows where they are truly necessary.
    #if defined(mingw32_HOST_OS)
        mb_env <- getGccEnv args2
        runSomethingResponseFile logger tmpfs dflags id "Merge objects" p args2 mb_env
    #else
        Logger -> DynFlags -> String -> String -> [Option] -> IO ()
    runSomething Logger
    logger DynFlags
    dflags String
    "Merge objects" String
    p [Option]
    args2
    #endif

    runLibtool :: Logger -> DynFlags -> [Option] -> IO ()
    runLibtool :: Logger -> DynFlags -> [Option] -> IO ()
    runLibtool Logger
    logger DynFlags
    dflags [Option]
    args = Logger -> DynFlags -> String -> IO () -> IO ()
    forall a. Logger -> DynFlags -> String -> IO a -> IO a
    traceToolCommand Logger
    logger DynFlags
    dflags String
    "libtool" (IO () -> IO ()) -> IO () -> IO ()
    forall a b. (a -> b) -> a -> b
    $ do
      [Option]
    linkargs <- LinkerInfo -> [Option]
    neededLinkArgs (LinkerInfo -> [Option]) -> IO LinkerInfo -> IO [Option]
    forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
    `fmap` Logger -> DynFlags -> IO LinkerInfo
    getLinkerInfo Logger
    logger DynFlags
    dflags
      let args1 :: [Option]
    args1      = (String -> Option) -> [String] -> [Option]
    forall a b. (a -> b) -> [a] -> [b]
    map String -> Option
    Option (DynFlags -> (DynFlags -> [String]) -> [String]
    forall a. DynFlags -> (DynFlags -> [a]) -> [a]
    getOpts DynFlags
    dflags DynFlags -> [String]
    opt_l)
          args2 :: [Option]
    args2      = [String -> Option
    Option String
    "-static"] [Option] -> [Option] -> [Option]
    forall a. [a] -> [a] -> [a]
    ++ [Option]
    args1 [Option] -> [Option] -> [Option]
    forall a. [a] -> [a] -> [a]
    ++ [Option]
    args [Option] -> [Option] -> [Option]
    forall a. [a] -> [a] -> [a]
    ++ [Option]
    linkargs
          libtool :: String
    libtool    = DynFlags -> String
    pgm_libtool DynFlags
    dflags
      Maybe [(String, String)]
    mb_env <- [Option] -> IO (Maybe [(String, String)])
    getGccEnv [Option]
    args2
      Logger
    -> DynFlags
    -> (String -> String)
    -> String
    -> String
    -> [Option]
    -> Maybe String
    -> Maybe [(String, String)]
    -> IO ()
    runSomethingFiltered Logger
    logger DynFlags
    dflags String -> String
    forall a. a -> a
    id String
    "Libtool" String
    libtool [Option]
    args2 Maybe String
    forall a. Maybe a
    Nothing Maybe [(String, String)]
    mb_env

    runAr :: Logger -> DynFlags -> Maybe FilePath -> [Option] -> IO ()
    runAr :: Logger -> DynFlags -> Maybe String -> [Option] -> IO ()
    runAr Logger
    logger DynFlags
    dflags Maybe String
    cwd [Option]
    args = Logger -> DynFlags -> String -> IO () -> IO ()
    forall a. Logger -> DynFlags -> String -> IO a -> IO a
    traceToolCommand Logger
    logger DynFlags
    dflags String
    "ar" (IO () -> IO ()) -> IO () -> IO ()
    forall a b. (a -> b) -> a -> b
    $ do
      let ar :: String
    ar = DynFlags -> String
    pgm_ar DynFlags
    dflags
      Logger
    -> DynFlags
    -> (String -> String)
    -> String
    -> String
    -> [Option]
    -> Maybe String
    -> Maybe [(String, String)]
    -> IO ()
    runSomethingFiltered Logger
    logger DynFlags
    dflags String -> String
    forall a. a -> a
    id String
    "Ar" String
    ar [Option]
    args Maybe String
    cwd Maybe [(String, String)]
    forall a. Maybe a
    Nothing

    askOtool :: Logger -> DynFlags -> Maybe FilePath -> [Option] -> IO String
    askOtool :: Logger -> DynFlags -> Maybe String -> [Option] -> IO String
    askOtool Logger
    logger DynFlags
    dflags Maybe String
    mb_cwd [Option]
    args = do
      let otool :: String
    otool = DynFlags -> String
    pgm_otool DynFlags
    dflags
      Logger
    -> DynFlags
    -> String
    -> String
    -> [Option]
    -> ([String] -> IO (ExitCode, String))
    -> IO String
    forall a.
    Logger
    -> DynFlags
    -> String
    -> String
    -> [Option]
    -> ([String] -> IO (ExitCode, a))
    -> IO a
    runSomethingWith Logger
    logger DynFlags
    dflags String
    "otool" String
    otool [Option]
    args (([String] -> IO (ExitCode, String)) -> IO String)
    -> ([String] -> IO (ExitCode, String)) -> IO String
    forall a b. (a -> b) -> a -> b
    $ \[String]
    real_args ->
        CreateProcess -> IO (ExitCode, String)
    readCreateProcessWithExitCode' (String -> [String] -> CreateProcess
    proc String
    otool [String]
    real_args){ cwd :: Maybe String
    cwd = Maybe String
    mb_cwd }

    runInstallNameTool :: Logger -> DynFlags -> [Option] -> IO ()
    runInstallNameTool :: Logger -> DynFlags -> [Option] -> IO ()
    runInstallNameTool Logger
    logger DynFlags
    dflags [Option]
    args = do
      let tool :: String
    tool = DynFlags -> String
    pgm_install_name_tool DynFlags
    dflags
      Logger
    -> DynFlags
    -> (String -> String)
    -> String
    -> String
    -> [Option]
    -> Maybe String
    -> Maybe [(String, String)]
    -> IO ()
    runSomethingFiltered Logger
    logger DynFlags
    dflags String -> String
    forall a. a -> a
    id String
    "Install Name Tool" String
    tool [Option]
    args Maybe String
    forall a. Maybe a
    Nothing Maybe [(String, String)]
    forall a. Maybe a
    Nothing

    runRanlib :: Logger -> DynFlags -> [Option] -> IO ()
    runRanlib :: Logger -> DynFlags -> [Option] -> IO ()
    runRanlib Logger
    logger DynFlags
    dflags [Option]
    args = Logger -> DynFlags -> String -> IO () -> IO ()
    forall a. Logger -> DynFlags -> String -> IO a -> IO a
    traceToolCommand Logger
    logger DynFlags
    dflags String
    "ranlib" (IO () -> IO ()) -> IO () -> IO ()
    forall a b. (a -> b) -> a -> b
    $ do
      let ranlib :: String
    ranlib = DynFlags -> String
    pgm_ranlib DynFlags
    dflags
      Logger
    -> DynFlags
    -> (String -> String)
    -> String
    -> String
    -> [Option]
    -> Maybe String
    -> Maybe [(String, String)]
    -> IO ()
    runSomethingFiltered Logger
    logger DynFlags
    dflags String -> String
    forall a. a -> a
    id String
    "Ranlib" String
    ranlib [Option]
    args Maybe String
    forall a. Maybe a
    Nothing Maybe [(String, String)]
    forall a. Maybe a
    Nothing

    runWindres :: Logger -> DynFlags -> [Option] -> IO ()
    runWindres :: Logger -> DynFlags -> [Option] -> IO ()
    runWindres Logger
    logger DynFlags
    dflags [Option]
    args = Logger -> DynFlags -> String -> IO () -> IO ()
    forall a. Logger -> DynFlags -> String -> IO a -> IO a
    traceToolCommand Logger
    logger DynFlags
    dflags String
    "windres" (IO () -> IO ()) -> IO () -> IO ()
    forall a b. (a -> b) -> a -> b
    $ do
      let cc :: String
    cc = DynFlags -> String
    pgm_c DynFlags
    dflags
          cc_args :: [Option]
    cc_args = (String -> Option) -> [String] -> [Option]
    forall a b. (a -> b) -> [a] -> [b]
    map String -> Option
    Option (Settings -> [String]
    sOpt_c (DynFlags -> Settings
    settings DynFlags
    dflags))
          windres :: String
    windres = DynFlags -> String
    pgm_windres DynFlags
    dflags
          opts :: [Option]
    opts = (String -> Option) -> [String] -> [Option]
    forall a b. (a -> b) -> [a] -> [b]
    map String -> Option
    Option (DynFlags -> (DynFlags -> [String]) -> [String]
    forall a. DynFlags -> (DynFlags -> [a]) -> [a]
    getOpts DynFlags
    dflags DynFlags -> [String]
    opt_windres)
          quote :: String -> String
    quote String
    x = String
    "\"" String -> String -> String
    forall a. [a] -> [a] -> [a]
    ++ String
    x String -> String -> String
    forall a. [a] -> [a] -> [a]
    ++ String
    "\""
          args' :: [Option]
    args' = -- If windres.exe and gcc.exe are in a directory containing
                  -- spaces then windres fails to run gcc. We therefore need
                  -- to tell it what command to use...
                  String -> Option
    Option (String
    "--preprocessor=" String -> String -> String
    forall a. [a] -> [a] -> [a]
    ++
                          [String] -> String
    unwords ((String -> String) -> [String] -> [String]
    forall a b. (a -> b) -> [a] -> [b]
    map String -> String
    quote (String
    cc String -> [String] -> [String]
    forall a. a -> [a] -> [a]
    :
                                              (Option -> String) -> [Option] -> [String]
    forall a b. (a -> b) -> [a] -> [b]
    map Option -> String
    showOpt [Option]
    opts [String] -> [String] -> [String]
    forall a. [a] -> [a] -> [a]
    ++
                                              [String
    "-E", String
    "-xc", String
    "-DRC_INVOKED"])))
                  -- ...but if we do that then if windres calls popen then
                  -- it can't understand the quoting, so we have to use
                  -- --use-temp-file so that it interprets it correctly.
                  -- See #1828.
                Option -> [Option] -> [Option]
    forall a. a -> [a] -> [a]
    : String -> Option
    Option String
    "--use-temp-file"
                Option -> [Option] -> [Option]
    forall a. a -> [a] -> [a]
    : [Option]
    args
      Maybe [(String, String)]
    mb_env <- [Option] -> IO (Maybe [(String, String)])
    getGccEnv [Option]
    cc_args
      Logger
    -> DynFlags
    -> (String -> String)
    -> String
    -> String
    -> [Option]
    -> Maybe String
    -> Maybe [(String, String)]
    -> IO ()
    runSomethingFiltered Logger
    logger DynFlags
    dflags String -> String
    forall a. a -> a
    id String
    "Windres" String
    windres [Option]
    args' Maybe String
    forall a. Maybe a
    Nothing Maybe [(String, String)]
    mb_env

    touch :: Logger -> DynFlags -> String -> String -> IO ()
    touch :: Logger -> DynFlags -> String -> String -> IO ()
    touch Logger
    logger DynFlags
    dflags String
    purpose String
    arg = Logger -> DynFlags -> String -> IO () -> IO ()
    forall a. Logger -> DynFlags -> String -> IO a -> IO a
    traceToolCommand Logger
    logger DynFlags
    dflags String
    "touch" (IO () -> IO ()) -> IO () -> IO ()
    forall a b. (a -> b) -> a -> b
    $
      Logger -> DynFlags -> String -> String -> [Option] -> IO ()
    runSomething Logger
    logger DynFlags
    dflags String
    purpose (DynFlags -> String
    pgm_T DynFlags
    dflags) [String -> String -> Option
    FileOption String
    "" String
    arg]

    -- * Tracing utility

    -- | Record in the eventlog when the given tool command starts
    --   and finishes, prepending the given 'String' with
    --   \"systool:\", to easily be able to collect and process
    --   all the systool events.
    --
    --   For those events to show up in the eventlog, you need
    --   to run GHC with @-v2@ or @-ddump-timings@.
    traceToolCommand :: Logger -> DynFlags -> String -> IO a -> IO a
    traceToolCommand :: forall a. Logger -> DynFlags -> String -> IO a -> IO a
    traceToolCommand Logger
    logger DynFlags
    dflags String
    tool = Logger -> DynFlags -> SDoc -> (a -> ()) -> IO a -> IO a
    forall (m :: * -> *) a.
    MonadIO m =>
    Logger -> DynFlags -> SDoc -> (a -> ()) -> m a -> m a
    withTiming Logger
    logger
      DynFlags
    dflags (String -> SDoc
    text (String -> SDoc) -> String -> SDoc
    forall a b. (a -> b) -> a -> b
    $ String
    "systool:" String -> String -> String
    forall a. [a] -> [a] -> [a]
    ++ String
    tool) (() -> a -> ()
    forall a b. a -> b -> a
    const ())