re PR libffi/40807 (libffi.call/return_sc.c)

	PR libffi/40807
	* src/x86/ffi.c (ffi_prep_cif_machdep): Also use sign/zero-extending
	return types for X86_WIN32.
	* src/x86/win32.S (_ffi_call_SYSV): Handle omitted return types.
	(_ffi_call_STDCALL, _ffi_closure_SYSV, _ffi_closure_raw_SYSV,
	_ffi_closure_STDCALL): Likewise.

	* src/closures.c (is_selinux_enabled): Define to const 0 for Cygwin.
	(dlmmap, dlmunmap): Also use these functions on Cygwin.

From-SVN: r150042

libffi/ChangeLog

+2009-07-24  Dave Korn  <dave.korn.cygwin@gmail.com>
+
+	PR libffi/40807
+	* src/x86/ffi.c (ffi_prep_cif_machdep): Also use sign/zero-extending
+	return types for X86_WIN32.
+	* src/x86/win32.S (_ffi_call_SYSV): Handle omitted return types.
+	(_ffi_call_STDCALL, _ffi_closure_SYSV, _ffi_closure_raw_SYSV,
+	_ffi_closure_STDCALL): Likewise.
+
+	* src/closures.c (is_selinux_enabled): Define to const 0 for Cygwin.
+	(dlmmap, dlmunmap): Also use these functions on Cygwin.
+
 2009-07-11  Richard Sandiford  <rdsandiford@googlemail.com>
 
 	PR testsuite/40699

libffi/src/closures.c

@@ -165,7 +165,15 @@ selinux_enabled_check (void)
 
 #define is_selinux_enabled() 0
 
-#endif
+#endif /* !FFI_MMAP_EXEC_SELINUX */
+
+#elif defined (__CYGWIN__)
+
+#include <sys/mman.h>
+
+/* Cygwin is Linux-like, but not quite that Linux-like.  */
+#define is_selinux_enabled() 0
+
 #endif /* !defined(X86_WIN32) && !defined(X86_WIN64) */
 
 /* Declare all functions defined in dlmalloc.c as static.  */
@@ -185,11 +193,11 @@ static int dlmalloc_trim(size_t) MAYBE_UNUSED;
 static size_t dlmalloc_usable_size(void*) MAYBE_UNUSED;
 static void dlmalloc_stats(void) MAYBE_UNUSED;
 
-#if !defined(X86_WIN32) && !defined(X86_WIN64)
+#if !(defined(X86_WIN32) || defined(X86_WIN64)) || defined (__CYGWIN__)
 /* Use these for mmap and munmap within dlmalloc.c.  */
 static void *dlmmap(void *, size_t, int, int, int, off_t);
 static int dlmunmap(void *, size_t);
-#endif /* !defined(X86_WIN32) && !defined(X86_WIN64) */
+#endif /* !(defined(X86_WIN32) || defined(X86_WIN64)) || defined (__CYGWIN__) */
 
 #define mmap dlmmap
 #define munmap dlmunmap
@@ -199,7 +207,7 @@ static int dlmunmap(void *, size_t);
 #undef mmap
 #undef munmap
 
-#if !defined(X86_WIN32) && !defined(X86_WIN64)
+#if !(defined(X86_WIN32) || defined(X86_WIN64)) || defined (__CYGWIN__)
 
 /* A mutex used to synchronize access to *exec* variables in this file.  */
 static pthread_mutex_t open_temp_exec_file_mutex = PTHREAD_MUTEX_INITIALIZER;
@@ -514,7 +522,7 @@ segment_holding_code (mstate m, char* addr)
 }
 #endif
 
-#endif /* !defined(X86_WIN32) && !defined(X86_WIN64) */
+#endif /* !(defined(X86_WIN32) || defined(X86_WIN64)) || defined (__CYGWIN__) */
 
 /* Allocate a chunk of memory with the given size.  Returns a pointer
    to the writable address, and sets *CODE to the executable

libffi/src/x86/ffi.c

@@ -155,7 +155,7 @@ ffi_status ffi_prep_cif_machdep(ffi_cif *cif)
 #ifdef X86
     case FFI_TYPE_STRUCT:
 #endif
-#if defined(X86) || defined(X86_DARWIN) || defined(X86_WIN64)
+#if defined(X86) || defined (X86_WIN32) || defined(X86_DARWIN) || defined(X86_WIN64)
     case FFI_TYPE_UINT8:
     case FFI_TYPE_UINT16:
     case FFI_TYPE_SINT8: