Remove cygwin32_HOST_OS #ifdefs

Build system support for Cygwin was removed in b6be81b841.

Test Plan:
 - Validate on x86_64/linux
 - Cross-compile rts/RtsSymbols.c and rts/Linker.c to Windows using the
   i686-w64-mingw32-gcc and x86_64-w64-mingw32-gcc cross compilers.

Reviewers: hvr, austin, bgamari

Reviewed By: bgamari

Subscribers: thomie

Differential Revision: https://phabricator.haskell.org/D1371

7 files changed, 23 insertions, 127 deletions

diff --git a/libraries/base/System/CPUTime.hsc b/libraries/base/System/CPUTime.hsc
index e09439c0e8..8d2671c49f 100644
--- a/libraries/base/System/CPUTime.hsc
+++ b/libraries/base/System/CPUTime.hsc
@@ -6,7 +6,7 @@
 -- Module      :  System.CPUTime
 -- Copyright   :  (c) The University of Glasgow 2001
 -- License     :  BSD-style (see the file libraries/base/LICENSE)
--- 
+--
 -- Maintainer  :  libraries@haskell.org
 -- Stability   :  provisional
 -- Portability :  portable
@@ -18,7 +18,7 @@
 #include "HsFFI.h"
 #include "HsBaseConfig.h"
 
-module System.CPUTime 
+module System.CPUTime
         (
          getCPUTime,       -- :: IO Integer
          cpuTimePrecision  -- :: Integer
@@ -57,10 +57,10 @@ import Foreign.C
 ##else
 ##endif
 
-#if !defined(mingw32_HOST_OS) && !defined(cygwin32_HOST_OS)
+#if !defined(mingw32_HOST_OS)
 realToInteger :: Real a => a -> Integer
 realToInteger ct = round (realToFrac ct :: Double)
-  -- CTime, CClock, CUShort etc are in Real but not Fractional, 
+  -- CTime, CClock, CUShort etc are in Real but not Fractional,
   -- so we must convert to Double before we can round it
 #endif
 
@@ -72,7 +72,7 @@ realToInteger ct = round (realToFrac ct :: Double)
 getCPUTime :: IO Integer
 getCPUTime = do
 
-#if !defined(mingw32_HOST_OS) && !defined(cygwin32_HOST_OS)
+#if !defined(mingw32_HOST_OS)
 -- getrusage() is right royal pain to deal with when targetting multiple
 -- versions of Solaris, since some versions supply it in libc (2.3 and 2.5),
 -- while 2.4 has got it in libucb (I wouldn't be too surprised if it was back
@@ -90,8 +90,8 @@ getCPUTime = do
     u_usec <- (#peek struct timeval,tv_usec) ru_utime :: IO CSUSeconds
     s_sec  <- (#peek struct timeval,tv_sec)  ru_stime :: IO CTime
     s_usec <- (#peek struct timeval,tv_usec) ru_stime :: IO CSUSeconds
-    return ((realToInteger u_sec * 1000000 + realToInteger u_usec + 
-             realToInteger s_sec * 1000000 + realToInteger s_usec) 
+    return ((realToInteger u_sec * 1000000 + realToInteger u_usec +
+             realToInteger s_sec * 1000000 + realToInteger s_usec)
                 * 1000000)
 
 type CRUsage = ()
@@ -101,13 +101,13 @@ foreign import capi unsafe "HsBase.h getrusage" getrusage :: CInt -> Ptr CRUsage
     _ <- times p_tms
     u_ticks  <- (#peek struct tms,tms_utime) p_tms :: IO CClock
     s_ticks  <- (#peek struct tms,tms_stime) p_tms :: IO CClock
-    return (( (realToInteger u_ticks + realToInteger s_ticks) * 1000000000000) 
+    return (( (realToInteger u_ticks + realToInteger s_ticks) * 1000000000000)
                         `div` fromIntegral clockTicks)
 
 type CTms = ()
 foreign import ccall unsafe times :: Ptr CTms -> IO CClock
 #else
-    ioException (IOError Nothing UnsupportedOperation 
+    ioException (IOError Nothing UnsupportedOperation
                          "getCPUTime"
                          "can't get CPU time"
                          Nothing)
@@ -127,12 +127,12 @@ foreign import ccall unsafe times :: Ptr CTms -> IO CClock
       kt <- ft2psecs p_kernelTime
       return (ut + kt)
      else return 0
-  where 
+  where
         ft2psecs :: Ptr FILETIME -> IO Integer
         ft2psecs ft = do
           high <- (#peek FILETIME,dwHighDateTime) ft :: IO Word32
           low  <- (#peek FILETIME,dwLowDateTime)  ft :: IO Word32
-            -- Convert 100-ns units to picosecs (10^-12) 
+            -- Convert 100-ns units to picosecs (10^-12)
             -- => multiply by 10^5.
           return (((fromIntegral high) * (2^(32::Int)) + (fromIntegral low)) * 100000)
 
diff --git a/rts/Linker.c b/rts/Linker.c
index 101e5494a3..6be9a5a030 100644
--- a/rts/Linker.c
+++ b/rts/Linker.c
@@ -58,22 +58,6 @@
 #include <dlfcn.h>
 #endif
 
-#if defined(cygwin32_HOST_OS)
-#ifdef HAVE_DIRENT_H
-#include <dirent.h>
-#endif
-
-#ifdef HAVE_SYS_TIME_H
-#include <sys/time.h>
-#endif
-#include <regex.h>
-#include <sys/fcntl.h>
-#include <sys/termios.h>
-#include <sys/utime.h>
-#include <sys/utsname.h>
-#include <sys/wait.h>
-#endif
-
 #if (defined(powerpc_HOST_ARCH) && defined(linux_HOST_OS)) \
  || (!defined(powerpc_HOST_ARCH) && \
     (   defined(linux_HOST_OS)     || defined(freebsd_HOST_OS) || \
@@ -110,7 +94,7 @@
 #  define OBJFORMAT_ELF
 #  include <regex.h>    // regex is already used by dlopen() so this is OK
                         // to use here without requiring an additional lib
-#elif defined(cygwin32_HOST_OS) || defined (mingw32_HOST_OS)
+#elif defined (mingw32_HOST_OS)
 #  define OBJFORMAT_PEi386
 #  include <windows.h>
 #  include <shfolder.h> /* SHGetFolderPathW */
diff --git a/rts/RtsMessages.c b/rts/RtsMessages.c
index b3d8f94b48..c74e3387f1 100644
--- a/rts/RtsMessages.c
+++ b/rts/RtsMessages.c
@@ -108,7 +108,7 @@ vdebugBelch(const char*s, va_list ap)
 
 #define BUFSIZE 512
 
-#if defined(cygwin32_HOST_OS) || defined (mingw32_HOST_OS)
+#if defined (mingw32_HOST_OS)
 static int
 isGUIApp(void)
 {
@@ -133,7 +133,7 @@ isGUIApp(void)
 void GNU_ATTRIBUTE(__noreturn__)
 rtsFatalInternalErrorFn(const char *s, va_list ap)
 {
-#if defined(cygwin32_HOST_OS) || defined (mingw32_HOST_OS)
+#if defined (mingw32_HOST_OS)
   if (isGUIApp())
   {
      char title[BUFSIZE], message[BUFSIZE];
@@ -174,7 +174,7 @@ rtsFatalInternalErrorFn(const char *s, va_list ap)
 void
 rtsErrorMsgFn(const char *s, va_list ap)
 {
-#if defined(cygwin32_HOST_OS) || defined (mingw32_HOST_OS)
+#if defined (mingw32_HOST_OS)
   if (isGUIApp())
   {
      char buf[BUFSIZE];
@@ -206,7 +206,7 @@ rtsSysErrorMsgFn(const char *s, va_list ap)
 {
     char *syserr;
 
-#if defined(cygwin32_HOST_OS) || defined (mingw32_HOST_OS)
+#if defined (mingw32_HOST_OS)
     FormatMessage(
         FORMAT_MESSAGE_ALLOCATE_BUFFER |
         FORMAT_MESSAGE_FROM_SYSTEM |
@@ -245,7 +245,7 @@ rtsSysErrorMsgFn(const char *s, va_list ap)
         }
         vfprintf(stderr, s, ap);
         if (syserr) {
-#if defined(cygwin32_HOST_OS) || defined (mingw32_HOST_OS)
+#if defined (mingw32_HOST_OS)
             // Win32 error messages have a terminating \n
             fprintf(stderr, ": %s", syserr);
 #else
@@ -256,7 +256,7 @@ rtsSysErrorMsgFn(const char *s, va_list ap)
         }
     }
 
-#if defined(cygwin32_HOST_OS) || defined (mingw32_HOST_OS)
+#if defined (mingw32_HOST_OS)
     if (syserr) LocalFree(syserr);
 #endif
 }
@@ -264,7 +264,7 @@ rtsSysErrorMsgFn(const char *s, va_list ap)
 void
 rtsDebugMsgFn(const char *s, va_list ap)
 {
-#if defined(cygwin32_HOST_OS) || defined (mingw32_HOST_OS)
+#if defined (mingw32_HOST_OS)
   if (isGUIApp())
   {
      char buf[BUFSIZE];
diff --git a/rts/RtsSymbols.c b/rts/RtsSymbols.c
index b9b0d2c204..569255094f 100644
--- a/rts/RtsSymbols.c
+++ b/rts/RtsSymbols.c
@@ -47,93 +47,8 @@
       SymI_NeedsDataProto(nocldstop)
 #endif
 
-#if defined (cygwin32_HOST_OS)
-#define RTS_MINGW_ONLY_SYMBOLS /**/
-/* Don't have the ability to read import libs / archives, so
- * we have to stupidly list a lot of what libcygwin.a
- * exports; sigh.
- */
-#define RTS_CYGWIN_ONLY_SYMBOLS                          \
-      SymI_HasProto(regfree)                             \
-      SymI_HasProto(regexec)                             \
-      SymI_HasProto(regerror)                            \
-      SymI_HasProto(regcomp)                             \
-      SymI_HasProto(__errno)                             \
-      SymI_HasProto(access)                              \
-      SymI_HasProto(chmod)                               \
-      SymI_HasProto(chdir)                               \
-      SymI_HasProto(close)                               \
-      SymI_HasProto(creat)                               \
-      SymI_HasProto(dup)                                 \
-      SymI_HasProto(dup2)                                \
-      SymI_HasProto(fstat)                               \
-      SymI_HasProto(fcntl)                               \
-      SymI_HasProto(getcwd)                              \
-      SymI_HasProto(getenv)                              \
-      SymI_HasProto(lseek)                               \
-      SymI_HasProto(open)                                \
-      SymI_HasProto(fpathconf)                           \
-      SymI_HasProto(pathconf)                            \
-      SymI_HasProto(stat)                                \
-      SymI_HasProto(pow)                                 \
-      SymI_HasProto(tanh)                                \
-      SymI_HasProto(cosh)                                \
-      SymI_HasProto(sinh)                                \
-      SymI_HasProto(atan)                                \
-      SymI_HasProto(acos)                                \
-      SymI_HasProto(asin)                                \
-      SymI_HasProto(tan)                                 \
-      SymI_HasProto(cos)                                 \
-      SymI_HasProto(sin)                                 \
-      SymI_HasProto(exp)                                 \
-      SymI_HasProto(log)                                 \
-      SymI_HasProto(sqrt)                                \
-      SymI_HasProto(localtime_r)                         \
-      SymI_HasProto(gmtime_r)                            \
-      SymI_HasProto(mktime)                              \
-      SymI_NeedsProto(_imp___tzname)                     \
-      SymI_HasProto(gettimeofday)                        \
-      SymI_HasProto(timezone)                            \
-      SymI_HasProto(tcgetattr)                           \
-      SymI_HasProto(tcsetattr)                           \
-      SymI_HasProto(memcpy)                              \
-      SymI_HasProto(memmove)                             \
-      SymI_HasProto(realloc)                             \
-      SymI_HasProto(malloc)                              \
-      SymI_HasProto(free)                                \
-      SymI_HasProto(fork)                                \
-      SymI_HasProto(lstat)                               \
-      SymI_HasProto(isatty)                              \
-      SymI_HasProto(mkdir)                               \
-      SymI_HasProto(opendir)                             \
-      SymI_HasProto(readdir)                             \
-      SymI_HasProto(rewinddir)                           \
-      SymI_HasProto(closedir)                            \
-      SymI_HasProto(link)                                \
-      SymI_HasProto(mkfifo)                              \
-      SymI_HasProto(pipe)                                \
-      SymI_HasProto(read)                                \
-      SymI_HasProto(rename)                              \
-      SymI_HasProto(rmdir)                               \
-      SymI_HasProto(select)                              \
-      SymI_HasProto(system)                              \
-      SymI_HasProto(write)                               \
-      SymI_HasProto(strcmp)                              \
-      SymI_HasProto(strcpy)                              \
-      SymI_HasProto(strncpy)                             \
-      SymI_HasProto(strerror)                            \
-      SymI_HasProto(sigaddset)                           \
-      SymI_HasProto(sigemptyset)                         \
-      SymI_HasProto(sigprocmask)                         \
-      SymI_HasProto(umask)                               \
-      SymI_HasProto(uname)                               \
-      SymI_HasProto(unlink)                              \
-      SymI_HasProto(utime)                               \
-      SymI_HasProto(waitpid)
-
-#elif defined(mingw32_HOST_OS)
+#if defined(mingw32_HOST_OS)
 #define RTS_POSIX_ONLY_SYMBOLS  /**/
-#define RTS_CYGWIN_ONLY_SYMBOLS /**/
 
 #if HAVE_GETTIMEOFDAY
 #define RTS_MINGW_GETTIMEOFDAY_SYM SymI_NeedsProto(gettimeofday)
@@ -476,7 +391,6 @@
 
 #else
 #define RTS_MINGW_ONLY_SYMBOLS /**/
-#define RTS_CYGWIN_ONLY_SYMBOLS /**/
 #endif
 
 
@@ -1144,7 +1058,6 @@ RTS_SYMBOLS
 RTS_RET_SYMBOLS
 RTS_POSIX_ONLY_SYMBOLS
 RTS_MINGW_ONLY_SYMBOLS
-RTS_CYGWIN_ONLY_SYMBOLS
 RTS_DARWIN_ONLY_SYMBOLS
 RTS_LIBGCC_SYMBOLS
 RTS_LIBFFI_SYMBOLS
@@ -1182,7 +1095,6 @@ RtsSymbolVal rtsSyms[] = {
       RTS_RET_SYMBOLS
       RTS_POSIX_ONLY_SYMBOLS
       RTS_MINGW_ONLY_SYMBOLS
-      RTS_CYGWIN_ONLY_SYMBOLS
       RTS_DARWIN_ONLY_SYMBOLS
       RTS_LIBGCC_SYMBOLS
       RTS_LIBFFI_SYMBOLS
diff --git a/rts/Trace.c b/rts/Trace.c
index 0ab636abf4..d0fa1e57a0 100644
--- a/rts/Trace.c
+++ b/rts/Trace.c
@@ -460,7 +460,7 @@ void traceOSProcessInfo_(void) {
                         CAPSET_OSPROCESS_DEFAULT,
                         getpid());
 
-#if !defined(cygwin32_HOST_OS) && !defined (mingw32_HOST_OS)
+#if !defined (mingw32_HOST_OS)
 /* Windows has no strong concept of process hierarchy, so no getppid().
  * In any case, this trace event is mainly useful for tracing programs
  * that use 'forkProcess' which Windows doesn't support anyway.
diff --git a/testsuite/tests/rts/T5435.hs b/testsuite/tests/rts/T5435.hs
index f3f7c59a79..d3862a5667 100644
--- a/testsuite/tests/rts/T5435.hs
+++ b/testsuite/tests/rts/T5435.hs
@@ -15,7 +15,7 @@ withPathString = withCString
 #endif
 
 mungeDLL :: FilePath -> FilePath
-#if defined(mingw32_HOST_OS) || defined(cygwin32_HOST_OS)
+#if defined(mingw32_HOST_OS)
 -- Strip extension because addDLL on Windows doesn't want it
 mungeDLL f =
     let (base, ext) = splitExtension f
diff --git a/testsuite/tests/rts/T5435_asm.c b/testsuite/tests/rts/T5435_asm.c
index 423c6fd910..59b53b1c3e 100644
--- a/testsuite/tests/rts/T5435_asm.c
+++ b/testsuite/tests/rts/T5435_asm.c
@@ -11,7 +11,7 @@ static void ctors2(void)        { printf("ctors2\n");       fflush(stdout); }
 static void modInitFunc1(void)  { printf("modInitFunc1\n"); fflush(stdout); }
 static void modInitFunc2(void)  { printf("modInitFunc2\n"); fflush(stdout); }
 
-#if defined(cygwin32_HOST_OS) || defined(mingw32_HOST_OS)
+#if defined(mingw32_HOST_OS)
 
 static void (*ctors[2])(void) __attribute__((
             section(".ctors"),