8079087: Add support for Cygwin 2.0

common/autoconf/basics_windows.m4

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2022, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -312,17 +312,17 @@ AC_DEFUN([BASIC_CHECK_PATHS_WINDOWS],
     WINDOWS_ENV_VENDOR='cygwin'
     WINDOWS_ENV_VERSION="$CYGWIN_VERSION"
 
-    CYGWIN_VERSION_OK=`$ECHO $CYGWIN_VERSION | $GREP ^1.7.`
-    if test "x$CYGWIN_VERSION_OK" = x; then
+    CYGWIN_VERSION_OLD=`$ECHO $CYGWIN_VERSION | $GREP -e '^1\.[0-6]'`
+    if test "x$CYGWIN_VERSION_OLD" != x; then
       AC_MSG_NOTICE([Your cygwin is too old. You are running $CYGWIN_VERSION, but at least cygwin 1.7 is required. Please upgrade.])
       AC_MSG_ERROR([Cannot continue])
     fi
     if test "x$CYGPATH" = x; then
       AC_MSG_ERROR([Something is wrong with your cygwin installation since I cannot find cygpath.exe in your path])
     fi
     AC_MSG_CHECKING([cygwin root directory as unix-style path])
-    # The cmd output ends with Windows line endings (CR/LF), the grep command will strip that away
-    cygwin_winpath_root=`cd / ; cmd /c cd | grep ".*"`
+    # The cmd output ends with Windows line endings (CR/LF)
+    cygwin_winpath_root=`cd / ; cmd /c cd | $TR -d '\r\n'`
     # Force cygpath to report the proper root by including a trailing space, and then stripping it off again.
     CYGWIN_ROOT_PATH=`$CYGPATH -u "$cygwin_winpath_root " | $CUT -f 1 -d " "`
     AC_MSG_RESULT([$CYGWIN_ROOT_PATH])

common/autoconf/generated-configure.sh

@@ -3228,7 +3228,7 @@ ac_configure="$SHELL $ac_aux_dir/configure"  # Please don't use this var.
 
 
 #
-# Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2022, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -3873,7 +3873,7 @@ fi
 #CUSTOM_AUTOCONF_INCLUDE
 
 # Do not change or remove the following line, it is needed for consistency checks:
-DATE_WHEN_GENERATED=1649266272
+DATE_WHEN_GENERATED=1650317207
 
 ###############################################################################
 #
@@ -7247,8 +7247,8 @@ $as_echo "$CYGWIN_VERSION" >&6; }
     WINDOWS_ENV_VENDOR='cygwin'
     WINDOWS_ENV_VERSION="$CYGWIN_VERSION"
 
-    CYGWIN_VERSION_OK=`$ECHO $CYGWIN_VERSION | $GREP ^1.7.`
-    if test "x$CYGWIN_VERSION_OK" = x; then
+    CYGWIN_VERSION_OLD=`$ECHO $CYGWIN_VERSION | $GREP -e '^1\.0-6'`
+    if test "x$CYGWIN_VERSION_OLD" != x; then
       { $as_echo "$as_me:${as_lineno-$LINENO}: Your cygwin is too old. You are running $CYGWIN_VERSION, but at least cygwin 1.7 is required. Please upgrade." >&5
 $as_echo "$as_me: Your cygwin is too old. You are running $CYGWIN_VERSION, but at least cygwin 1.7 is required. Please upgrade." >&6;}
       as_fn_error $? "Cannot continue" "$LINENO" 5
@@ -7258,8 +7258,8 @@ $as_echo "$as_me: Your cygwin is too old. You are running $CYGWIN_VERSION, but a
     fi
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking cygwin root directory as unix-style path" >&5
 $as_echo_n "checking cygwin root directory as unix-style path... " >&6; }
-    # The cmd output ends with Windows line endings (CR/LF), the grep command will strip that away
-    cygwin_winpath_root=`cd / ; cmd /c cd | grep ".*"`
+    # The cmd output ends with Windows line endings (CR/LF)
+    cygwin_winpath_root=`cd / ; cmd /c cd | $TR -d '\r\n'`
     # Force cygpath to report the proper root by including a trailing space, and then stripping it off again.
     CYGWIN_ROOT_PATH=`$CYGPATH -u "$cygwin_winpath_root " | $CUT -f 1 -d " "`
     { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CYGWIN_ROOT_PATH" >&5

jdk/make/CreateJars.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2022, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -265,7 +265,10 @@ $(IMAGES_OUTPUTDIR)/lib$(PROFILE)/_the.jars.contents: $(BUILD_TOOLS) $(IMAGES_OU
 $(IMAGES_OUTPUTDIR)/lib$(PROFILE)/_the.rt.jar.contents: $(IMAGES_OUTPUTDIR)/lib$(PROFILE)/_the.jars.contents
 	$(MKDIR) -p $(@D)
 	$(RM) $@ $@.tmp
-	$(GREP) -e '\.class$$' $(IMAGES_OUTPUTDIR)/lib$(PROFILE)/_the.jars.contents > $@.tmp
+	# Cygwin grep does not match $ as end of line if there are windows line
+	# endings in the input.
+	$(TR) -d '\r' < $(IMAGES_OUTPUTDIR)/lib$(PROFILE)/_the.jars.contents \
+	       | $(GREP) -e '\.class$$' > $@.tmp
         ifneq ($(PROFILE), )
           # # Add back classes from excluded packages (fixing the $ substitution in the process)
 	  for type in $(subst \$$,\, $(RT_JAR_INCLUDE_TYPES)) ; do \
@@ -277,9 +280,11 @@ $(IMAGES_OUTPUTDIR)/lib$(PROFILE)/_the.rt.jar.contents: $(IMAGES_OUTPUTDIR)/lib$
 $(IMAGES_OUTPUTDIR)/lib$(PROFILE)/_the.resources.jar.contents: $(IMAGES_OUTPUTDIR)/lib$(PROFILE)/_the.jars.contents
 	$(MKDIR) -p $(@D)
 	$(RM) $@ $@.tmp
-	$(GREP) -v -e '\.class$$' \
-	    -e '/_the\.*' -e '^_the\.*' -e '\\_the\.*' -e 'javac_state' \
-	    $(IMAGES_OUTPUTDIR)/lib$(PROFILE)/_the.jars.contents > $@.tmp
+	# Cygwin grep does not match $ as end of line if there are windows line
+	# endings in the input.
+	$(TR) -d '\r' < $(IMAGES_OUTPUTDIR)/lib$(PROFILE)/_the.jars.contents \
+	        | $(GREP) -v -e '\.class$$' \
+	              -e '/_the\.*' -e '^_the\.*' -e '\\_the\.*' -e 'javac_state' > $@.tmp
         ifneq ($(PROFILE), )
           # # Strip out all META-INF/services/ entries
 	  $(GREP) -v -e 'META-INF/services/' $@.tmp > $@.tmp2