-----------------------------------------------------------------------------
--
--- (c) The University of Glasgow 2001
+-- (c) The University of Glasgow 2001-2003
--
-- Access to system tools: gcc, cp, rm etc
--
-- Initialisation
initSysTools,
- setPgmP, -- String -> IO ()
+ setPgmL, -- String -> IO ()
+ setPgmP,
setPgmF,
setPgmc,
setPgmm,
setPgms,
setPgma,
setPgml,
+ setPgmDLL,
#ifdef ILX
setPgmI,
setPgmi,
getTopDir, -- IO String -- The value of $libdir
getPackageConfigPath, -- IO String -- Where package.conf is
+ getUsageMsgPaths, -- IO (String,String)
-- Interface to system tools
runUnlit, runCpp, runCc, -- [Option] -> IO ()
touch, -- String -> String -> IO ()
copy, -- String -> String -> String -> IO ()
- unDosifyPath, -- String -> String
+ normalisePath, -- FilePath -> FilePath
-- Temporary-file management
setTmpDir,
newTempName,
- cleanTempFiles, cleanTempFilesExcept, removeTmpFiles,
+ cleanTempFiles, cleanTempFilesExcept,
addFilesToClean,
-- System interface
- getProcessID, -- IO Int
system, -- String -> IO ExitCode
-- Misc
- showGhcUsage, -- IO () Shows usage message and exits
getSysMan, -- IO String Parallel system only
Option(..)
) where
+#include "HsVersions.h"
+
import DriverUtil
+import DriverPhases ( isHaskellUserSrcFilename )
import Config
import Outputable
-import Panic ( progName, GhcException(..) )
-import Util ( global, dropList, notNull )
+import Panic ( GhcException(..) )
+import Util ( global, notNull )
import CmdLineOpts ( dynFlag, verbosity )
-import Exception ( throwDyn )
-#if __GLASGOW_HASKELL__ > 408
-import qualified Exception ( catch )
-#else
-import Exception ( catchAllIO )
-#endif
-import IO
-import Directory ( doesFileExist, removeFile )
-import IOExts ( IORef, readIORef, writeIORef )
-import Monad ( when, unless )
-import System ( ExitCode(..), exitWith, getEnv, system )
-import CString
-import Int
-import Addr
+import EXCEPTION ( throwDyn )
+import DATA_IOREF ( IORef, readIORef, writeIORef )
+import DATA_INT
-#include "../includes/config.h"
+import Monad ( when, unless )
+import System ( ExitCode(..), getEnv, system )
+import IO ( try, catch,
+ openFile, hPutStrLn, hPutStr, hClose, hFlush, IOMode(..),
+ stderr )
+import Directory ( doesFileExist, removeFile )
+import List ( partition )
+
+#include "../includes/ghcconfig.h"
+
+-- GHC <= 4.08 didn't have rawSystem, and runs into problems with long command
+-- lines on mingw32, so we disallow it now.
+#if __GLASGOW_HASKELL__ < 500
+#error GHC >= 5.00 is required for bootstrapping GHC
+#endif
#ifndef mingw32_HOST_OS
-import qualified Posix
+#if __GLASGOW_HASKELL__ > 504
+import qualified System.Posix.Internals
#else
+import qualified Posix
+#endif
+#else /* Must be Win32 */
import List ( isPrefixOf )
-import MarshalArray
+import Util ( dropList )
import Foreign
+import CString ( CString, peekCString )
#endif
-#if __GLASGOW_HASKELL__ > 408
-# if __GLASGOW_HASKELL__ >= 503
-import GHC.IOBase
-# else
-# endif
-# ifdef mingw32_HOST_OS
-import SystemExts ( rawSystem )
-# endif
+#if __GLASGOW_HASKELL__ < 603
+-- rawSystem comes from libghccompat.a in stage1
+import Compat.RawSystem ( rawSystem )
#else
-import System ( system )
+import System.Cmd ( rawSystem )
#endif
-
-
-#include "HsVersions.h"
-
--- Make catch work on older GHCs
-#if __GLASGOW_HASKELL__ > 408
-myCatch = Exception.catch
-#else
-myCatch = catchAllIO
-#endif
-
\end{code}
\begin{code}
GLOBAL_VAR(v_Pgm_L, error "pgm_L", String) -- unlit
-GLOBAL_VAR(v_Pgm_P, error "pgm_P", String) -- cpp
+GLOBAL_VAR(v_Pgm_P, error "pgm_P", (String,[Option])) -- cpp
GLOBAL_VAR(v_Pgm_F, error "pgm_F", String) -- pp
-GLOBAL_VAR(v_Pgm_c, error "pgm_c", String) -- gcc
-GLOBAL_VAR(v_Pgm_m, error "pgm_m", String) -- asm code mangler
-GLOBAL_VAR(v_Pgm_s, error "pgm_s", String) -- asm code splitter
-GLOBAL_VAR(v_Pgm_a, error "pgm_a", String) -- as
+GLOBAL_VAR(v_Pgm_c, error "pgm_c", (String,[Option])) -- gcc
+GLOBAL_VAR(v_Pgm_m, error "pgm_m", (String,[Option])) -- asm code mangler
+GLOBAL_VAR(v_Pgm_s, error "pgm_s", (String,[Option])) -- asm code splitter
+GLOBAL_VAR(v_Pgm_a, error "pgm_a", (String,[Option])) -- as
#ifdef ILX
GLOBAL_VAR(v_Pgm_I, error "pgm_I", String) -- ilx2il
GLOBAL_VAR(v_Pgm_i, error "pgm_i", String) -- ilasm
#endif
-GLOBAL_VAR(v_Pgm_l, error "pgm_l", String) -- ld
-GLOBAL_VAR(v_Pgm_MkDLL, error "pgm_dll", String) -- mkdll
+GLOBAL_VAR(v_Pgm_l, error "pgm_l", (String,[Option])) -- ld
+GLOBAL_VAR(v_Pgm_MkDLL, error "pgm_dll", (String,[Option])) -- mkdll
GLOBAL_VAR(v_Pgm_T, error "pgm_T", String) -- touch
GLOBAL_VAR(v_Pgm_CP, error "pgm_CP", String) -- cp
GLOBAL_VAR(v_Path_package_config, error "path_package_config", String)
-GLOBAL_VAR(v_Path_usage, error "ghc_usage.txt", String)
+GLOBAL_VAR(v_Path_usages, error "ghc_usage.txt", (String,String))
GLOBAL_VAR(v_TopDir, error "TopDir", String) -- -B<dir>
| am_installed = installed "ghc-usage.txt"
| otherwise = inplace cGHC_DRIVER_DIR_REL "ghc-usage.txt"
+ ghci_usage_msg_path
+ | am_installed = installed "ghci-usage.txt"
+ | otherwise = inplace cGHC_DRIVER_DIR_REL "ghci-usage.txt"
+
-- For all systems, unlit, split, mangle are GHC utilities
-- architecture-specific stuff is done when building Config.hs
unlit_path
-- On Win32, consult GetTempPath() for a temp dir.
-- => it first tries TMP, TEMP, then finally the
-- Windows directory(!). The directory is in short-path
- -- form and *does* have a trailing backslash.
+ -- form.
; IO.try (do
let len = (2048::Int)
buf <- mallocArray len
ret <- getTempPath len buf
tdir <-
if ret == 0 then do
- -- failed, consult TEMP.
+ -- failed, consult TMPDIR.
free buf
- getEnv "TMP"
+ getEnv "TMPDIR"
else do
s <- peekCString buf
free buf
return s
- let
- -- strip the trailing backslash (awful, but
- -- we only do this once).
- tmpdir =
- case last tdir of
- '/' -> init tdir
- '\\' -> init tdir
- _ -> tdir
- setTmpDir tmpdir
- return ())
+ setTmpDir tdir)
#endif
-- Check that the package config exists
-- pick up whatever happens to be lying around in the path,
-- possibly including those from a cygwin install on the target,
-- which is exactly what we're trying to avoid.
- ; let gcc_path | am_installed = installed_bin ("gcc -B\"" ++ installed "gcc-lib/\"")
- | otherwise = cGCC
+ ; let gcc_b_arg = Option ("-B" ++ installed "gcc-lib/")
+ (gcc_prog,gcc_args)
+ | am_installed = (installed_bin "gcc", [gcc_b_arg])
+ | otherwise = (cGCC, [])
-- The trailing "/" is absolutely essential; gcc seems
- -- to construct file names simply by concatenating to this
- -- -B path with no extra slash
- -- We use "/" rather than "\\" because otherwise "\\\" is mangled
- -- later on; although gcc_path is in NATIVE format, gcc can cope
+ -- to construct file names simply by concatenating to
+ -- this -B path with no extra slash We use "/" rather
+ -- than "\\" because otherwise "\\\" is mangled
+ -- later on; although gcc_args are in NATIVE format,
+ -- gcc can cope
-- (see comments with declarations of global variables)
--
- -- The quotes round the -B argument are in case TopDir has spaces in it
+ -- The quotes round the -B argument are in case TopDir
+ -- has spaces in it
perl_path | am_installed = installed_bin cGHC_PERL
| otherwise = cGHC_PERL
-- On Win32 we don't want to rely on #!/bin/perl, so we prepend
-- a call to Perl to get the invocation of split and mangle
- ; let split_path = perl_path ++ " \"" ++ split_script ++ "\""
- mangle_path = perl_path ++ " \"" ++ mangle_script ++ "\""
-
- ; let mkdll_path = cMKDLL
+ ; let (split_prog, split_args) = (perl_path, [Option split_script])
+ (mangle_prog, mangle_args) = (perl_path, [Option mangle_script])
+
+ ; let (mkdll_prog, mkdll_args)
+ | am_installed =
+ (pgmPath (installed "gcc-lib/") cMKDLL,
+ [ Option "--dlltool-name",
+ Option (pgmPath (installed "gcc-lib/") "dlltool"),
+ Option "--driver-name",
+ Option gcc_prog, gcc_b_arg ])
+ | otherwise = (cMKDLL, [])
#else
-- UNIX-SPECIFIC STUFF
-- On Unix, the "standard" tools are assumed to be
-- in the same place whether we are running "in-place" or "installed"
-- That place is wherever the build-time configure script found them.
- ; let gcc_path = cGCC
+ ; let gcc_prog = cGCC
+ gcc_args = []
touch_path = "touch"
- mkdll_path = panic "Can't build DLLs on a non-Win32 system"
+ mkdll_prog = panic "Can't build DLLs on a non-Win32 system"
+ mkdll_args = []
-- On Unix, scripts are invoked using the '#!' method. Binary
-- installations of GHC on Unix place the correct line on the front
-- of the script at installation time, so we don't want to wire-in
-- our knowledge of $(PERL) on the host system here.
- ; let split_path = split_script
- mangle_path = mangle_script
+ ; let (split_prog, split_args) = (split_script, [])
+ (mangle_prog, mangle_args) = (mangle_script, [])
#endif
-- cpp is derived from gcc on all platforms
- ; let cpp_path = gcc_path ++ " -E " ++ cRAWCPP_FLAGS
+ -- HACK, see setPgmP below. We keep 'words' here to remember to fix
+ -- Config.hs one day.
+ ; let cpp_path = (gcc_prog, gcc_args ++
+ (Option "-E"):(map Option (words cRAWCPP_FLAGS)))
-- For all systems, copy and remove are provided by the host
-- system; architecture-specific stuff is done when building Config.hs
; let cp_path = cGHC_CP
-- Other things being equal, as and ld are simply gcc
- ; let as_path = gcc_path
- ld_path = gcc_path
+ ; let (as_prog,as_args) = (gcc_prog,gcc_args)
+ (ld_prog,ld_args) = (gcc_prog,gcc_args)
#ifdef ILX
-- ilx2il and ilasm are specified in Config.hs
-- Initialise the global vars
; writeIORef v_Path_package_config pkgconfig_path
- ; writeIORef v_Path_usage ghc_usage_msg_path
+ ; writeIORef v_Path_usages (ghc_usage_msg_path,
+ ghci_usage_msg_path)
; writeIORef v_Pgm_sysman (top_dir ++ "/ghc/rts/parallel/SysMan")
-- Hans: this isn't right in general, but you can
; writeIORef v_Pgm_L unlit_path
; writeIORef v_Pgm_P cpp_path
; writeIORef v_Pgm_F ""
- ; writeIORef v_Pgm_c gcc_path
- ; writeIORef v_Pgm_m mangle_path
- ; writeIORef v_Pgm_s split_path
- ; writeIORef v_Pgm_a as_path
+ ; writeIORef v_Pgm_c (gcc_prog,gcc_args)
+ ; writeIORef v_Pgm_m (mangle_prog,mangle_args)
+ ; writeIORef v_Pgm_s (split_prog,split_args)
+ ; writeIORef v_Pgm_a (as_prog,as_args)
#ifdef ILX
; writeIORef v_Pgm_I ilx2il_path
; writeIORef v_Pgm_i ilasm_path
#endif
- ; writeIORef v_Pgm_l ld_path
- ; writeIORef v_Pgm_MkDLL mkdll_path
+ ; writeIORef v_Pgm_l (ld_prog,ld_args)
+ ; writeIORef v_Pgm_MkDLL (mkdll_prog,mkdll_args)
; writeIORef v_Pgm_T touch_path
; writeIORef v_Pgm_CP cp_path
}
#if defined(mingw32_HOST_OS)
-foreign import stdcall "GetTempPathA" unsafe getTempPath :: Int -> CString -> IO Int32
+foreign import stdcall unsafe "GetTempPathA" getTempPath :: Int -> CString -> IO Int32
#endif
\end{code}
is used to override a particular program with a new one
\begin{code}
-setPgmP = writeIORef v_Pgm_P
+setPgmL = writeIORef v_Pgm_L
+-- XXX HACK: Prelude> words "'does not' work" ===> ["'does","not'","work"]
+-- Config.hs should really use Option.
+setPgmP arg = let (pgm:args) = words arg in writeIORef v_Pgm_P (pgm,map Option args)
setPgmF = writeIORef v_Pgm_F
-setPgmc = writeIORef v_Pgm_c
-setPgmm = writeIORef v_Pgm_m
-setPgms = writeIORef v_Pgm_s
-setPgma = writeIORef v_Pgm_a
-setPgml = writeIORef v_Pgm_l
+setPgmc prog = writeIORef v_Pgm_c (prog,[])
+setPgmm prog = writeIORef v_Pgm_m (prog,[])
+setPgms prog = writeIORef v_Pgm_s (prog,[])
+setPgma prog = writeIORef v_Pgm_a (prog,[])
+setPgml prog = writeIORef v_Pgm_l (prog,[])
+setPgmDLL prog = writeIORef v_Pgm_MkDLL (prog,[])
#ifdef ILX
setPgmI = writeIORef v_Pgm_I
setPgmi = writeIORef v_Pgm_i
; return (am_installed, top_dir)
}
where
- -- get_proto returns a Unix-format path (relying on getExecDir to do so too)
+ -- get_proto returns a Unix-format path (relying on getBaseDir to do so too)
get_proto | notNull minusbs
- = return (unDosifyPath (drop 2 (last minusbs))) -- 2 for "-B"
+ = return (normalisePath (drop 2 (last minusbs))) -- 2 for "-B"
| otherwise
- = do { maybe_exec_dir <- getExecDir -- Get directory of executable
+ = do { maybe_exec_dir <- getBaseDir -- Get directory of executable
; case maybe_exec_dir of -- (only works on Windows;
-- returns Nothing on Unix)
Nothing -> throwDyn (InstallationError "missing -B<dir> option")
String -- the filepath/filename portion
| Option String
-showOptions :: [Option] -> String
-showOptions ls = unwords (map (quote.showOpt) ls)
- where
- showOpt (FileOption pre f) = pre ++ dosifyPath f
- showOpt (Option s) = s
+showOpt (FileOption pre f) = pre ++ platformPath f
+showOpt (Option "") = ""
+showOpt (Option s) = s
\end{code}
runSomething "Literate pre-processor" p args
runCpp :: [Option] -> IO ()
-runCpp args = do p <- readIORef v_Pgm_P
- runSomething "C pre-processor" p args
+runCpp args = do (p,baseArgs) <- readIORef v_Pgm_P
+ runSomething "C pre-processor" p (baseArgs ++ args)
runPp :: [Option] -> IO ()
runPp args = do p <- readIORef v_Pgm_F
runSomething "Haskell pre-processor" p args
runCc :: [Option] -> IO ()
-runCc args = do p <- readIORef v_Pgm_c
- runSomething "C Compiler" p args
+runCc args = do (p,args0) <- readIORef v_Pgm_c
+ runSomething "C Compiler" p (args0++args)
runMangle :: [Option] -> IO ()
-runMangle args = do p <- readIORef v_Pgm_m
- runSomething "Mangler" p args
+runMangle args = do (p,args0) <- readIORef v_Pgm_m
+ runSomething "Mangler" p (args0++args)
runSplit :: [Option] -> IO ()
-runSplit args = do p <- readIORef v_Pgm_s
- runSomething "Splitter" p args
+runSplit args = do (p,args0) <- readIORef v_Pgm_s
+ runSomething "Splitter" p (args0++args)
runAs :: [Option] -> IO ()
-runAs args = do p <- readIORef v_Pgm_a
- runSomething "Assembler" p args
+runAs args = do (p,args0) <- readIORef v_Pgm_a
+ runSomething "Assembler" p (args0++args)
runLink :: [Option] -> IO ()
-runLink args = do p <- readIORef v_Pgm_l
- runSomething "Linker" p args
+runLink args = do (p,args0) <- readIORef v_Pgm_l
+ runSomething "Linker" p (args0++args)
#ifdef ILX
runIlx2il :: [Option] -> IO ()
#endif
runMkDLL :: [Option] -> IO ()
-runMkDLL args = do p <- readIORef v_Pgm_MkDLL
- runSomething "Make DLL" p args
+runMkDLL args = do (p,args0) <- readIORef v_Pgm_MkDLL
+ runSomething "Make DLL" p (args0++args)
touch :: String -> String -> IO ()
touch purpose arg = do p <- readIORef v_Pgm_T
getSysMan = readIORef v_Pgm_sysman
\end{code}
-%************************************************************************
-%* *
-\subsection{GHC Usage message}
-%* *
-%************************************************************************
-
-Show the usage message and exit
-
\begin{code}
-showGhcUsage = do { usage_path <- readIORef v_Path_usage
- ; usage <- readFile usage_path
- ; dump usage
- ; exitWith ExitSuccess }
- where
- dump "" = return ()
- dump ('$':'$':s) = hPutStr stderr progName >> dump s
- dump (c:s) = hPutChar stderr c >> dump s
+getUsageMsgPaths :: IO (FilePath,FilePath)
+ -- the filenames of the usage messages (ghc, ghci)
+getUsageMsgPaths = readIORef v_Path_usages
\end{code}
\end{code}
\begin{code}
-setTmpDir dir = writeIORef v_TmpDir dir
+setTmpDir dir = writeIORef v_TmpDir (canonicalise dir)
+ where
+#if !defined(mingw32_HOST_OS)
+ canonicalise p = normalisePath p
+#else
+ -- Canonicalisation of temp path under win32 is a bit more
+ -- involved: (a) strip trailing slash,
+ -- (b) normalise slashes
+ -- (c) just in case, if there is a prefix /cygdrive/x/, change to x:
+ --
+ canonicalise path = normalisePath (xltCygdrive (removeTrailingSlash path))
+
+ -- if we're operating under cygwin, and TMP/TEMP is of
+ -- the form "/cygdrive/drive/path", translate this to
+ -- "drive:/path" (as GHC isn't a cygwin app and doesn't
+ -- understand /cygdrive paths.)
+ xltCygdrive path
+ | "/cygdrive/" `isPrefixOf` path =
+ case drop (length "/cygdrive/") path of
+ drive:xs@('/':_) -> drive:':':xs
+ _ -> path
+ | otherwise = path
+
+ -- strip the trailing backslash (awful, but we only do this once).
+ removeTrailingSlash path =
+ case last path of
+ '/' -> init path
+ '\\' -> init path
+ _ -> path
+#endif
cleanTempFiles :: Int -> IO ()
-cleanTempFiles verb = do fs <- readIORef v_FilesToClean
- removeTmpFiles verb fs
+cleanTempFiles verb
+ = do fs <- readIORef v_FilesToClean
+ removeTmpFiles verb fs
+ writeIORef v_FilesToClean []
cleanTempFilesExcept :: Int -> [FilePath] -> IO ()
cleanTempFilesExcept verb dont_delete
- = do fs <- readIORef v_FilesToClean
- let leftovers = filter (`notElem` dont_delete) fs
- removeTmpFiles verb leftovers
- writeIORef v_FilesToClean dont_delete
+ = do files <- readIORef v_FilesToClean
+ let (to_keep, to_delete) = partition (`elem` dont_delete) files
+ removeTmpFiles verb to_delete
+ writeIORef v_FilesToClean to_keep
-- find a temporary name that doesn't already exist.
removeTmpFiles :: Int -> [FilePath] -> IO ()
removeTmpFiles verb fs
- = traceCmd "Deleting temp files"
- ("Deleting: " ++ unwords fs)
- (mapM_ rm fs)
+ = warnNon $
+ traceCmd "Deleting temp files"
+ ("Deleting: " ++ unwords deletees)
+ (mapM_ rm deletees)
where
- rm f = removeFile f `myCatch`
+ -- Flat out refuse to delete files that are likely to be source input
+ -- files (is there a worse bug than having a compiler delete your source
+ -- files?)
+ --
+ -- Deleting source files is a sign of a bug elsewhere, so prominently flag
+ -- the condition.
+ warnNon act
+ | null non_deletees = act
+ | otherwise = do
+ hPutStrLn stderr ("WARNING - NOT deleting source files: " ++ unwords non_deletees)
+ act
+
+ (non_deletees, deletees) = partition isHaskellUserSrcFilename fs
+
+ rm f = removeFile f `IO.catch`
(\_ignored ->
when (verb >= 2) $
hPutStrLn stderr ("Warning: deleting non-existent " ++ f)
-- runSomething will dos-ify them
-> IO ()
-runSomething phase_name pgm args
- = traceCmd phase_name cmd_line $
- do {
-#ifndef mingw32_HOST_OS
- exit_code <- system cmd_line
-#else
- exit_code <- rawSystem cmd_line
-#endif
- ; if exit_code /= ExitSuccess
- then throwDyn (PhaseFailed phase_name exit_code)
- else return ()
- }
- where
- -- The pgm is already in native format (appropriate dir separators)
- cmd_line = pgm ++ ' ':showOptions args
- -- unwords (pgm : dosifyPaths (map quote args))
+runSomething phase_name pgm args = do
+ let real_args = filter notNull (map showOpt args)
+ traceCmd phase_name (unwords (pgm:real_args)) $ do
+ exit_code <- rawSystem pgm real_args
+ case exit_code of
+ ExitSuccess ->
+ return ()
+ -- rawSystem returns (ExitFailure 127) if the exec failed for any
+ -- reason (eg. the program doesn't exist). This is the only clue
+ -- we have, but we need to report something to the user because in
+ -- the case of a missing program there will otherwise be no output
+ -- at all.
+ ExitFailure 127 ->
+ throwDyn (InstallationError ("could not execute: " ++ pgm))
+ ExitFailure _other ->
+ throwDyn (PhaseFailed phase_name exit_code)
traceCmd :: String -> String -> IO () -> IO ()
-- a) trace the command (at two levels of verbosity)
; unless n $ do {
-- And run it!
- ; action `myCatch` handle_exn verb
+ ; action `IO.catch` handle_exn verb
}}
where
handle_exn verb exn = do { when (verb >= 2) (hPutStr stderr "\n")
- ; when (verb >= 3) (hPutStrLn stderr ("Failed: " ++ cmd_line))
+ ; when (verb >= 3) (hPutStrLn stderr ("Failed: " ++ cmd_line ++ (show exn)))
; throwDyn (PhaseFailed phase_name (ExitFailure 1)) }
\end{code}
to the Windows command.
The alternative, of using '/' consistently on Unix and '\' on Windows,
-proved quite awkward. There were a lot more calls to dosifyPath,
+proved quite awkward. There were a lot more calls to platformPath,
and even on Windows we might invoke a unix-like utility (eg 'sh'), which
interpreted a command line 'foo\baz' as 'foobaz'.
\begin{code}
-----------------------------------------------------------------------------
--- Convert filepath into MSDOS form.
-
-dosifyPaths :: [String] -> [String]
--- dosifyPaths does two things
--- a) change '/' to '\'
--- b) remove initial '/cygdrive/'
+-- Convert filepath into platform / MSDOS form.
-unDosifyPath :: String -> String
--- Just change '\' to '/'
+normalisePath :: String -> String
+-- Just changes '\' to '/'
pgmPath :: String -- Directory string in Unix format
-> String -- Program name with no directory separators
#if defined(mingw32_HOST_OS)
-
--------------------- Windows version ------------------
-dosifyPaths xs = map dosifyPath xs
-
-unDosifyPath xs = subst '\\' '/' xs
+normalisePath xs = subst '\\' '/' xs
+platformPath p = subst '/' '\\' p
+pgmPath dir pgm = platformPath dir ++ '\\' : pgm
-pgmPath dir pgm = dosifyPath dir ++ '\\' : pgm
-
-dosifyPath stuff
- = subst '/' '\\' real_stuff
- where
- -- fully convince myself that /cygdrive/ prefixes cannot
- -- really appear here.
- cygdrive_prefix = "/cygdrive/"
-
- real_stuff
- | cygdrive_prefix `isPrefixOf` stuff = dropList cygdrive_prefix stuff
- | otherwise = stuff
-
+subst a b ls = map (\ x -> if x == a then b else x) ls
#else
-
---------------------- Unix version ---------------------
-dosifyPaths ps = ps
-unDosifyPath xs = xs
-pgmPath dir pgm = dir ++ '/' : pgm
-dosifyPath stuff = stuff
+--------------------- Non-Windows version --------------
+normalisePath xs = xs
+pgmPath dir pgm = dir ++ '/' : pgm
+platformPath stuff = stuff
--------------------------------------------------------
#endif
-subst a b ls = map (\ x -> if x == a then b else x) ls
\end{code}
\begin{code}
slash :: String -> String -> String
-absPath, relPath :: [String] -> String
-
-relPath [] = ""
-relPath xs = foldr1 slash xs
-
-absPath xs = "" `slash` relPath xs
-
slash s1 s2 = s1 ++ ('/' : s2)
\end{code}
\begin{code}
-----------------------------------------------------------------------------
--- Define getExecDir :: IO (Maybe String)
+-- Define getBaseDir :: IO (Maybe String)
#if defined(mingw32_HOST_OS)
-getExecDir :: IO (Maybe String)
-getExecDir = do let len = (2048::Int) -- plenty, PATH_MAX is 512 under Win32.
+getBaseDir :: IO (Maybe String)
+-- Assuming we are running ghc, accessed by path $()/bin/ghc.exe,
+-- return the path $(stuff). Note that we drop the "bin/" directory too.
+getBaseDir = do let len = (2048::Int) -- plenty, PATH_MAX is 512 under Win32.
buf <- mallocArray len
- ret <- getModuleFileName nullAddr buf len
+ ret <- getModuleFileName nullPtr buf len
if ret == 0 then free buf >> return Nothing
else do s <- peekCString buf
free buf
- return (Just (reverse (dropList "/bin/ghc.exe" (reverse (unDosifyPath s)))))
-
+ return (Just (rootDir s))
+ where
+ rootDir s = reverse (dropList "/bin/ghc.exe" (reverse (normalisePath s)))
-foreign import stdcall "GetModuleFileNameA" unsafe getModuleFileName :: Addr -> CString -> Int -> IO Int32
+foreign import stdcall unsafe "GetModuleFileNameA"
+ getModuleFileName :: Ptr () -> CString -> Int -> IO Int32
#else
-getExecDir :: IO (Maybe String) = do return Nothing
+getBaseDir :: IO (Maybe String) = do return Nothing
#endif
#ifdef mingw32_HOST_OS
-foreign import "_getpid" unsafe getProcessID :: IO Int -- relies on Int == Int32 on Windows
+foreign import ccall unsafe "_getpid" getProcessID :: IO Int -- relies on Int == Int32 on Windows
+#elif __GLASGOW_HASKELL__ > 504
+getProcessID :: IO Int
+getProcessID = System.Posix.Internals.c_getpid >>= return . fromIntegral
#else
getProcessID :: IO Int
getProcessID = Posix.getProcessID
#endif
-#if defined(mingw32_HOST_OS) && (__GLASGOW_HASKELL__ <= 408)
-rawSystem :: String -> IO ExitCode
-rawSystem cmd = system cmd
- -- mingw only: if you try to build a stage2 compiler with a stage1
- -- that has been bootstrapped with 4.08 (or earlier), this will run
- -- into problems with limits on command-line lengths with the std.
- -- Win32 command interpreters. So don't this - use 5.00 or later
- -- to compile up the GHC sources.
-#endif
-
-quote :: String -> String
-#if defined(mingw32_HOST_OS)
-quote "" = ""
-quote s = "\"" ++ s ++ "\""
-#else
-quote s = s
-#endif
-
\end{code}
projects / ghc-hetmet.git / blobdiff