From 439992fe5d620214ad0892f507824979990c2dd1 Mon Sep 17 00:00:00 2001
From: cgf <cgf>
Date: Thu, 3 Jun 2004 21:29:41 +0000
Subject: [PATCH] * winbase.h (ilockincr): More changes from the inexplicable
 world of gcc asm magic. (ilockdecr): Ditto.

---
 winsup/cygwin/ChangeLog   |  6 ++++++
 winsup/cygwin/autoload.cc |  1 +
 winsup/cygwin/fhandler.cc |  9 ++++-----
 winsup/cygwin/ntdll.h     |  1 +
 winsup/cygwin/winbase.h   | 12 ++++++++++--
 5 files changed, 22 insertions(+), 7 deletions(-)

diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index dabd6fc977..0b73f6733b 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,9 @@
+2004-06-03  Christopher Faylor  <cgf@alum.bu.edu>
+
+	* winbase.h (ilockincr): More changes from the inexplicable world of
+	gcc asm magic.
+	(ilockdecr): Ditto.
+
 2004-06-03  Christopher Faylor  <me@cgf.cx>
 
 	* winbase.h (ilockincr): YA correction to ensure correct operation with
diff --git a/winsup/cygwin/autoload.cc b/winsup/cygwin/autoload.cc
index 7fe19fd7aa..f2d46d1b32 100644
--- a/winsup/cygwin/autoload.cc
+++ b/winsup/cygwin/autoload.cc
@@ -389,6 +389,7 @@ LoadDLLfuncEx (NtSetSecurityObject, 12, ntdll, 1)
 LoadDLLfuncEx (NtUnmapViewOfSection, 8, ntdll, 1)
 LoadDLLfuncEx (RtlInitUnicodeString, 8, ntdll, 1)
 LoadDLLfuncEx (RtlNtStatusToDosError, 4, ntdll, 1)
+LoadDLLfuncEx (RtlIsDosDeviceName_U, 4, ntdll, 1)
 
 LoadDLLfuncEx (GetProcessMemoryInfo, 12, psapi, 1)
 
diff --git a/winsup/cygwin/fhandler.cc b/winsup/cygwin/fhandler.cc
index c481bde29a..c90acb24d6 100644
--- a/winsup/cygwin/fhandler.cc
+++ b/winsup/cygwin/fhandler.cc
@@ -531,7 +531,9 @@ done:
 int
 fhandler_base::open (int flags, mode_t mode)
 {
-  if (!wincap.is_winnt ())
+  UNICODE_STRING upath;
+  WCHAR wpath[CYG_MAX_PATH + 10];
+  if (!wincap.is_winnt () || RtlIsDosDeviceName_U(wpath))
     return fhandler_base::open_9x (flags, mode);
 
   int res = 0;
@@ -542,8 +544,6 @@ fhandler_base::open (int flags, mode_t mode)
   ULONG create_options;
   SECURITY_ATTRIBUTES sa = sec_none;
   security_descriptor sd;
-  UNICODE_STRING upath;
-  WCHAR wpath[CYG_MAX_PATH + 10];
   OBJECT_ATTRIBUTES attr;
   IO_STATUS_BLOCK io;
   NTSTATUS status;
@@ -555,8 +555,7 @@ fhandler_base::open (int flags, mode_t mode)
       goto done;
     }
 
-  InitializeObjectAttributes (&attr, pc.get_nt_native_path (upath, wpath),
-			      OBJ_CASE_INSENSITIVE | OBJ_INHERIT,
+  InitializeObjectAttributes (&attr, &upath, OBJ_CASE_INSENSITIVE | OBJ_INHERIT,
 			      sa.lpSecurityDescriptor, NULL);
 
   switch (query_open ())
diff --git a/winsup/cygwin/ntdll.h b/winsup/cygwin/ntdll.h
index 0fb7c0e5a8..8e829f5edc 100644
--- a/winsup/cygwin/ntdll.h
+++ b/winsup/cygwin/ntdll.h
@@ -420,4 +420,5 @@ extern "C"
   NTSTATUS NTAPI NtUnmapViewOfSection (HANDLE, PVOID);
   VOID NTAPI RtlInitUnicodeString (PUNICODE_STRING, PCWSTR);
   ULONG NTAPI RtlNtStatusToDosError (NTSTATUS);
+  ULONG WINAPI RtlIsDosDeviceName_U (PCWSTR);
 }
diff --git a/winsup/cygwin/winbase.h b/winsup/cygwin/winbase.h
index 0411afd7b0..6f9228efce 100644
--- a/winsup/cygwin/winbase.h
+++ b/winsup/cygwin/winbase.h
@@ -1,3 +1,11 @@
+/* winbase.h
+
+   Copyright 2002, 2003, 2004 Red Hat, Inc.
+
+This software is a copyrighted work licensed under the terms of the
+Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
+details. */
+
 #include_next "winbase.h"
 
 #ifndef _WINBASE2_H
@@ -9,7 +17,7 @@ ilockincr (long *m)
   register int __res;
   __asm__ __volatile__ ("\n\
 	movl	$1,%0\n\
-	lock	xadd %0,%2\n\
+	lock	xadd %0,%1\n\
 	inc	%0\n\
 	": "=a" (__res), "=m" (*m): "m" (m): "cc");
   return __res;
@@ -21,7 +29,7 @@ ilockdecr (long *m)
   register int __res;
   __asm__ __volatile__ ("\n\
 	movl	$0xffffffff,%0\n\
-	lock	xadd %0,%2\n\
+	lock	xadd %0,%1\n\
 	dec	%0\n\
 	": "=a" (__res), "=m" (*m): "m" (m): "cc");
   return __res;
-- 
2.11.0