changeset 13954:e2e318304252

8152545: Use preprocessor instead of compiling a program to generate native nio constants Reviewed-by: alanb
author erikj
date Thu, 24 Mar 2016 14:23:37 +0100
parents a18dbcbe2e1a
children c1288b724e43
files make/gensrc/GensrcMisc.gmk make/src/native/genconstants/ch/genSocketOptionRegistry.c make/src/native/genconstants/fs/genSolarisConstants.c make/src/native/genconstants/fs/genUnixConstants.c src/java.base/share/classes/sun/nio/ch/SocketOptionRegistry.java.template src/java.base/solaris/classes/sun/nio/fs/SolarisConstants.java.template src/java.base/unix/classes/sun/nio/fs/UnixConstants.java.template
diffstat 7 files changed, 422 insertions(+), 483 deletions(-) [+]
line wrap: on
line diff
--- a/make/gensrc/GensrcMisc.gmk	Thu Mar 24 12:41:24 2016 +0000
+++ b/make/gensrc/GensrcMisc.gmk	Thu Mar 24 14:23:37 2016 +0100
@@ -23,7 +23,7 @@
 # questions.
 #
 
-##########################################################################################
+################################################################################
 # Install the launcher name, release version string, full version
 # string and the runtime name into the VersionProps.java file.
 
@@ -39,110 +39,68 @@
 
 GENSRC_JAVA_BASE += $(BUILD_VERSION_JAVA)
 
-##########################################################################################
+################################################################################
 
-GENSRC_JAVA_BASE += $(SUPPORT_OUTPUTDIR)/gensrc/java.base/sun/nio/ch/SocketOptionRegistry.java
-
-GENSRC_SOR_SRC := $(JDK_TOPDIR)/make/src/native/genconstants/ch
-GENSRC_SOR_SRC_FILE := genSocketOptionRegistry.c
-GENSRC_SOR_BIN := $(BUILDTOOLS_OUTPUTDIR)/native/genSocketOptionRegistry
-
-SOR_COPYRIGHT_YEARS = $(shell $(CAT) $(GENSRC_SOR_SRC)/$(GENSRC_SOR_SRC_FILE) | \
-    $(NAWK) '/^.*Copyright.*Oracle/ { printf "%s %s",$$4,$$5 }')
-
-$(eval $(call SetupNativeCompilation, BUILD_GENSRC_SOR_EXE, \
-    SRC := $(GENSRC_SOR_SRC), \
-    INCLUDE_FILES := $(GENSRC_SOR_SRC_FILE), \
-    CFLAGS_windows := -nologo, \
-    LDFLAGS_windows := -nologo, \
-    TOOLCHAIN := TOOLCHAIN_BUILD, \
-    OBJECT_DIR := $(GENSRC_SOR_BIN), \
-    OUTPUT_DIR := $(GENSRC_SOR_BIN), \
-    PROGRAM := genSocketOptionRegistry))
-
-SOR_PREGEN_FILE := $(JDK_TOPDIR)/src/closed/java.base/$(OPENJDK_TARGET_OS)/classes/sun/nio/ch/SocketOptionRegistry-$(OPENJDK_TARGET_OS)-$(OPENJDK_TARGET_CPU_ARCH).java.template
-
-ifeq ($(wildcard $(SOR_PREGEN_FILE)), )
-  $(SUPPORT_OUTPUTDIR)/gensrc/java.base/sun/nio/ch/SocketOptionRegistry.java: $(BUILD_GENSRC_SOR_EXE_TARGET)
-	$(MKDIR) -p $(@D)
-	$(RM) $@ $@.tmp
-	NAWK="$(NAWK)" SH="$(SH)" $(SH) -e \
-	    $(JDK_TOPDIR)/make/scripts/addNotices.sh "$(SOR_COPYRIGHT_YEARS)" > $@.tmp
-	$(BUILD_GENSRC_SOR_EXE_TARGET) >> $@.tmp
-	$(MV) $@.tmp $@
-else
-  $(SUPPORT_OUTPUTDIR)/gensrc/java.base/sun/nio/ch/SocketOptionRegistry.java: $(SOR_PREGEN_FILE)
-	$(call install-file)
+ifneq ($(filter $(TOOLCHAIN_TYPE), gcc clang), )
+  # Need to specify language since the template file has a non standard
+  # extension.
+  CPP_FLAGS += -x c
+else ifeq ($(TOOLCHAIN_TYPE), microsoft)
+  CPP_FLAGS += -nologo
 endif
 
-##########################################################################################
+# Generate a java source file from a template through the C preprocessor for the
+# target system. First extract the copyright notice at the start of the file.
+# Run the preprocessor. Filter out the default compiler stderr output on
+# Windows. Filter out all the header files output. Remove all "PREFIX_" strings
+# that were added to variable references in the template files to avoid being
+# matched by the preprocessor. Remove any #line directives left by the
+# preprocessor.
+define generate-preproc-src
+	$(call MakeDir, $(@D))
+	( $(NAWK) '/@@END_COPYRIGHT@@/{exit}1' $< && \
+	  $(CPP) $(CPP_FLAGS) $(SYSROOT_CFLAGS) $< \
+	      2> >($(GREP) -v '^$(<F)$$' >&2) \
+	      | $(NAWK) '/@@START_HERE@@/,0' \
+	      |  $(SED) -e 's/@@START_HERE@@/\/\/ AUTOMATICALLY GENERATED FILE - DO NOT EDIT/' \
+	      -e 's/PREFIX_//' -e 's/^#.*//' \
+	) > $@
+endef
+
+GENSRC_SOR_FILE += $(SUPPORT_OUTPUTDIR)/gensrc/java.base/sun/nio/ch/SocketOptionRegistry.java
+
+$(GENSRC_SOR_FILE): \
+    $(JDK_TOPDIR)/src/java.base/share/classes/sun/nio/ch/SocketOptionRegistry.java.template
+	$(generate-preproc-src)
+
+GENSRC_JAVA_BASE += $(GENSRC_SOR_FILE)
+
+################################################################################
 
 ifneq ($(OPENJDK_TARGET_OS), windows)
 
-  GENSRC_JAVA_BASE += $(SUPPORT_OUTPUTDIR)/gensrc/java.base/sun/nio/fs/UnixConstants.java
+  GENSRC_UC_FILE := $(SUPPORT_OUTPUTDIR)/gensrc/java.base/sun/nio/fs/UnixConstants.java
 
-  GENSRC_UC_SRC := $(JDK_TOPDIR)/make/src/native/genconstants/fs
-  GENSRC_UC_SRC_FILE := genUnixConstants.c
-  GENSRC_UC_BIN := $(BUILDTOOLS_OUTPUTDIR)/native/genUnixConstants
+  $(GENSRC_UC_FILE): \
+      $(JDK_TOPDIR)/src/java.base/unix/classes/sun/nio/fs/UnixConstants.java.template
+	$(generate-preproc-src)
 
-  UC_COPYRIGHT_YEARS = $(shell $(CAT) $(GENSRC_UC_SRC)/$(GENSRC_UC_SRC_FILE) | \
-      $(NAWK) '/^.*Copyright.*Oracle/ { printf "%s %s",$$4,$$5 }')
-
-  $(eval $(call SetupNativeCompilation, BUILD_GENSRC_UC_EXE, \
-      SRC := $(GENSRC_UC_SRC), \
-      INCLUDE_FILES := $(GENSRC_UC_SRC_FILE), \
-      TOOLCHAIN := TOOLCHAIN_BUILD, \
-      OBJECT_DIR := $(GENSRC_UC_BIN), \
-      OUTPUT_DIR := $(GENSRC_UC_BIN), \
-      PROGRAM := genUnixConstants))
-
-  UC_PREGEN_FILE := $(JDK_TOPDIR)/src/closed/java.base/$(OPENJDK_TARGET_OS)/classes/sun/nio/fs/UnixConstants-$(OPENJDK_TARGET_OS)-$(OPENJDK_TARGET_CPU_ARCH).java.template
-
-  ifeq ($(wildcard $(UC_PREGEN_FILE)), )
-    $(SUPPORT_OUTPUTDIR)/gensrc/java.base/sun/nio/fs/UnixConstants.java: $(BUILD_GENSRC_UC_EXE_TARGET)
-	$(MKDIR) -p $(@D)
-	$(RM) $@ $@.tmp
-	NAWK="$(NAWK)" SH="$(SH)" $(SH) -e \
-	    $(JDK_TOPDIR)/make/scripts/addNotices.sh "$(UC_COPYRIGHT_YEARS)" > $@.tmp
-	$(BUILD_GENSRC_UC_EXE_TARGET) >> $@.tmp
-	$(MV) $@.tmp $@
-  else
-    $(SUPPORT_OUTPUTDIR)/gensrc/java.base/sun/nio/fs/UnixConstants.java: $(UC_PREGEN_FILE)
-	$(call install-file)
-  endif
+  GENSRC_JAVA_BASE += $(GENSRC_UC_FILE)
 
 endif
 
-##########################################################################################
+################################################################################
 
 ifeq ($(OPENJDK_TARGET_OS), solaris)
 
-  GENSRC_JAVA_BASE += $(SUPPORT_OUTPUTDIR)/gensrc/java.base/sun/nio/fs/SolarisConstants.java
+  GENSRC_SC_FILE := $(SUPPORT_OUTPUTDIR)/gensrc/java.base/sun/nio/fs/SolarisConstants.java
 
-  GENSRC_SOL_SRC := $(JDK_TOPDIR)/make/src/native/genconstants/fs
-  GENSRC_SOL_SRC_FILE := genSolarisConstants.c
-  GENSRC_SOL_BIN := $(BUILDTOOLS_OUTPUTDIR)/native/genSolarisConstants
+  $(GENSRC_SC_FILE): \
+      $(JDK_TOPDIR)/src/java.base/solaris/classes/sun/nio/fs/SolarisConstants.java.template
+	$(generate-preproc-src)
 
-  SOL_COPYRIGHT_YEARS = $(shell $(CAT) $(GENSRC_SOL_SRC)/$(GENSRC_SOL_SRC_FILE) | \
-      $(NAWK) '/^.*Copyright.*Oracle/ { printf "%s %s",$$4,$$5 }')
-
-  $(eval $(call SetupNativeCompilation, BUILD_GENSRC_SOL_EXE, \
-      SRC := $(GENSRC_SOL_SRC), \
-      INCLUDE_FILES := $(GENSRC_SOL_SRC_FILE), \
-      TOOLCHAIN := TOOLCHAIN_BUILD, \
-      OBJECT_DIR := $(GENSRC_SOL_BIN), \
-      OUTPUT_DIR := $(GENSRC_SOL_BIN), \
-      PROGRAM := genSolarisConstants))
-
-  $(SUPPORT_OUTPUTDIR)/gensrc/java.base/sun/nio/fs/SolarisConstants.java: $(BUILD_GENSRC_SOL_EXE_TARGET)
-	$(MKDIR) -p $(@D)
-	$(RM) $@ $@.tmp
-	NAWK="$(NAWK)" SH="$(SH)" $(SH) -e \
-	    $(JDK_TOPDIR)/make/scripts/addNotices.sh "$(SOL_COPYRIGHT_YEARS)" > $@.tmp
-	$(BUILD_GENSRC_SOL_EXE_TARGET) >> $@.tmp
-	$(MV) $@.tmp $@
-
+  GENSRC_JAVA_BASE += $(GENSRC_SC_FILE)
 
 endif
 
-##########################################################################################
+################################################################################
--- a/make/src/native/genconstants/ch/genSocketOptionRegistry.c	Thu Mar 24 12:41:24 2016 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,147 +0,0 @@
-/*
- * Copyright (c) 2008, 2016, 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
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.  Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-#include <stdio.h>
-#ifdef _WIN32
-#include <winsock2.h>
-#include <ws2tcpip.h>
-#else
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <netinet/tcp.h>
-#endif
-
-/* Defines SO_REUSEPORT */
-#if !defined(SO_REUSEPORT)
-#ifdef _WIN32
-#define SO_REUSEPORT 0
-#elif __linux__
-#define SO_REUSEPORT 15
-#elif __solaris__
-#define SO_REUSEPORT 0x100e
-#elif defined(AIX) || defined(MACOSX)
-#define SO_REUSEPORT 0x0200
-#else
-#define SO_REUSEPORT 0
-#endif
-#endif
-
-/**
- * Generates sun.nio.ch.SocketOptionRegistry, a class that maps Java-level
- * socket options to the platform specific level and option.
- */
-
-static void out(char* s) {
-    printf("%s\n", s);
-}
-
-static void emit(const char *name, char * family, int level, int optname) {
-    printf("            map.put(new RegistryKey(%s, %s),", name, family);
-    printf(" new OptionKey(%d, %d));\n", level, optname);
-}
-
-static void emit_unspec(const char *name, int level, int optname) {
-    emit(name, "Net.UNSPEC", level, optname);
-}
-
-static  void emit_inet(const char *name, int level, int optname) {
-    emit(name, "StandardProtocolFamily.INET", level, optname);
-}
-
-static void emit_inet6(const char *name, int level, int optname) {
-    emit(name, "StandardProtocolFamily.INET6", level, optname);
-}
-
-int main(int argc, const char* argv[]) {
-    out("// AUTOMATICALLY GENERATED FILE - DO NOT EDIT                                  ");
-    out("package sun.nio.ch;                                                            ");
-    out("import java.net.SocketOption;                                                  ");
-    out("import java.net.StandardSocketOptions;                                         ");
-    out("import java.net.ProtocolFamily;                                                ");
-    out("import java.net.StandardProtocolFamily;                                        ");
-    out("import java.util.Map;                                                          ");
-    out("import java.util.HashMap;                                                      ");
-    out("class SocketOptionRegistry {                                                   ");
-    out("    private SocketOptionRegistry() { }                                         ");
-    out("    private static class RegistryKey {                                         ");
-    out("        private final SocketOption<?> name;                                    ");
-    out("        private final ProtocolFamily family;                                   ");
-    out("        RegistryKey(SocketOption<?> name, ProtocolFamily family) {             ");
-    out("            this.name = name;                                                  ");
-    out("            this.family = family;                                              ");
-    out("        }                                                                      ");
-    out("        public int hashCode() {                                                ");
-    out("            return name.hashCode() + family.hashCode();                        ");
-    out("        }                                                                      ");
-    out("        public boolean equals(Object ob) {                                     ");
-    out("            if (ob == null) return false;                                      ");
-    out("            if (!(ob instanceof RegistryKey)) return false;                    ");
-    out("            RegistryKey other = (RegistryKey)ob;                               ");
-    out("            if (this.name != other.name) return false;                         ");
-    out("            if (this.family != other.family) return false;                     ");
-    out("            return true;                                                       ");
-    out("        }                                                                      ");
-    out("    }                                                                          ");
-    out("    private static class LazyInitialization {                                  ");
-    out("        static final Map<RegistryKey,OptionKey> options = options();           ");
-    out("        private static Map<RegistryKey,OptionKey> options() {                  ");
-    out("            Map<RegistryKey,OptionKey> map =                                   ");
-    out("                new HashMap<RegistryKey,OptionKey>();                          ");
-
-    emit_unspec("StandardSocketOptions.SO_BROADCAST", SOL_SOCKET, SO_BROADCAST);
-    emit_unspec("StandardSocketOptions.SO_KEEPALIVE", SOL_SOCKET, SO_KEEPALIVE);
-    emit_unspec("StandardSocketOptions.SO_LINGER",    SOL_SOCKET, SO_LINGER);
-    emit_unspec("StandardSocketOptions.SO_SNDBUF",    SOL_SOCKET, SO_SNDBUF);
-    emit_unspec("StandardSocketOptions.SO_RCVBUF",    SOL_SOCKET, SO_RCVBUF);
-    emit_unspec("StandardSocketOptions.SO_REUSEADDR", SOL_SOCKET, SO_REUSEADDR);
-    emit_unspec("StandardSocketOptions.SO_REUSEPORT", SOL_SOCKET, SO_REUSEPORT);
-    emit_unspec("StandardSocketOptions.TCP_NODELAY",  IPPROTO_TCP, TCP_NODELAY);
-
-    emit_inet("StandardSocketOptions.IP_TOS",            IPPROTO_IP,     IP_TOS);
-    emit_inet("StandardSocketOptions.IP_MULTICAST_IF",   IPPROTO_IP,     IP_MULTICAST_IF);
-    emit_inet("StandardSocketOptions.IP_MULTICAST_TTL",  IPPROTO_IP,     IP_MULTICAST_TTL);
-    emit_inet("StandardSocketOptions.IP_MULTICAST_LOOP", IPPROTO_IP,     IP_MULTICAST_LOOP);
-
-#ifdef AF_INET6
-    emit_inet6("StandardSocketOptions.IP_TOS",            IPPROTO_IPV6,  IPV6_TCLASS);
-    emit_inet6("StandardSocketOptions.IP_MULTICAST_IF",   IPPROTO_IPV6,  IPV6_MULTICAST_IF);
-    emit_inet6("StandardSocketOptions.IP_MULTICAST_TTL",  IPPROTO_IPV6,  IPV6_MULTICAST_HOPS);
-    emit_inet6("StandardSocketOptions.IP_MULTICAST_LOOP", IPPROTO_IPV6,  IPV6_MULTICAST_LOOP);
-#endif
-
-    emit_unspec("ExtendedSocketOption.SO_OOBINLINE", SOL_SOCKET, SO_OOBINLINE);
-
-    out("            return map;                                                        ");
-    out("        }                                                                      ");
-    out("    }                                                                          ");
-    out("    public static OptionKey findOption(SocketOption<?> name, ProtocolFamily family) { ");
-    out("        RegistryKey key = new RegistryKey(name, family);                       ");
-    out("        return LazyInitialization.options.get(key);                            ");
-    out("    }                                                                          ");
-    out("}                                                                              ");
-
-    return 0;
-}
--- a/make/src/native/genconstants/fs/genSolarisConstants.c	Thu Mar 24 12:41:24 2016 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,105 +0,0 @@
-/*
- * Copyright (c) 2008, 2011, 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
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.  Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-#include <stdio.h>
-#include <errno.h>
-#include <unistd.h>
-#include <sys/acl.h>
-#include <fcntl.h>
-#include <sys/stat.h>
-
-/**
- * Generates sun.nio.fs.SolarisConstants
- */
-
-static void out(char* s) {
-    printf("%s\n", s);
-}
-
-static void emit(char* name, int value) {
-    printf("    static final int %s = %d;\n", name, value);
-}
-
-static void emitX(char* name, int value) {
-    printf("    static final int %s = 0x%x;\n", name, value);
-}
-
-#define DEF(X) emit(#X, X);
-#define DEFX(X) emitX(#X, X);
-
-int main(int argc, const char* argv[]) {
-    out("// AUTOMATICALLY GENERATED FILE - DO NOT EDIT                                  ");
-    out("package sun.nio.fs;                                                            ");
-    out("class SolarisConstants {                                                       ");
-    out("    private SolarisConstants() { }                                             ");
-
-    // extended attributes
-    DEFX(O_XATTR);
-    DEF(_PC_XATTR_ENABLED);
-
-    // ACL configuration
-    DEF(_PC_ACL_ENABLED);
-    DEFX(_ACL_ACE_ENABLED);
-
-    // ACL commands
-    DEFX(ACE_GETACL);
-    DEFX(ACE_SETACL);
-
-    // ACL mask/flags/types
-    emitX("ACE_ACCESS_ALLOWED_ACE_TYPE",        0x0000);
-    emitX("ACE_ACCESS_DENIED_ACE_TYPE",         0x0001);
-    emitX("ACE_SYSTEM_AUDIT_ACE_TYPE",          0x0002);
-    emitX("ACE_SYSTEM_ALARM_ACE_TYPE",          0x0003);
-    emitX("ACE_READ_DATA",                      0x00000001);
-    emitX("ACE_LIST_DIRECTORY",                 0x00000001);
-    emitX("ACE_WRITE_DATA",                     0x00000002);
-    emitX("ACE_ADD_FILE",                       0x00000002);
-    emitX("ACE_APPEND_DATA",                    0x00000004);
-    emitX("ACE_ADD_SUBDIRECTORY",               0x00000004);
-    emitX("ACE_READ_NAMED_ATTRS",               0x00000008);
-    emitX("ACE_WRITE_NAMED_ATTRS",              0x00000010);
-    emitX("ACE_EXECUTE",                        0x00000020);
-    emitX("ACE_DELETE_CHILD",                   0x00000040);
-    emitX("ACE_READ_ATTRIBUTES",                0x00000080);
-    emitX("ACE_WRITE_ATTRIBUTES",               0x00000100);
-    emitX("ACE_DELETE",                         0x00010000);
-    emitX("ACE_READ_ACL",                       0x00020000);
-    emitX("ACE_WRITE_ACL",                      0x00040000);
-    emitX("ACE_WRITE_OWNER",                    0x00080000);
-    emitX("ACE_SYNCHRONIZE",                    0x00100000);
-    emitX("ACE_FILE_INHERIT_ACE",               0x0001);
-    emitX("ACE_DIRECTORY_INHERIT_ACE",          0x0002);
-    emitX("ACE_NO_PROPAGATE_INHERIT_ACE",       0x0004);
-    emitX("ACE_INHERIT_ONLY_ACE",               0x0008);
-    emitX("ACE_SUCCESSFUL_ACCESS_ACE_FLAG",     0x0010);
-    emitX("ACE_FAILED_ACCESS_ACE_FLAG",         0x0020);
-    emitX("ACE_IDENTIFIER_GROUP",               0x0040);
-    emitX("ACE_OWNER",                          0x1000);
-    emitX("ACE_GROUP",                          0x2000);
-    emitX("ACE_EVERYONE",                       0x4000);
-
-    out("}                                                                              ");
-    return 0;
-}
--- a/make/src/native/genconstants/fs/genUnixConstants.c	Thu Mar 24 12:41:24 2016 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,142 +0,0 @@
-/*
- * Copyright (c) 2008, 2015, 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
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.  Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-#include <stdio.h>
-#include <errno.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <sys/stat.h>
-
-/**
- * Generates sun.nio.fs.UnixConstants
- */
-
-static void out(char* s) {
-    printf("%s\n", s);
-}
-
-static void emit(char* name, int value) {
-    printf("    static final int %s = %d;\n", name, value);
-}
-
-static void emitX(char* name, int value) {
-    printf("    static final int %s = 0x%x;\n", name, value);
-}
-
-#define DEF(X) emit(#X, X);
-#define DEFX(X) emitX(#X, X);
-
-int main(int argc, const char* argv[]) {
-    out("// AUTOMATICALLY GENERATED FILE - DO NOT EDIT                                  ");
-    out("package sun.nio.fs;                                                            ");
-    out("class UnixConstants {                                                          ");
-    out("    private UnixConstants() { }                                                ");
-
-    // open flags
-    DEF(O_RDONLY);
-    DEF(O_WRONLY);
-    DEF(O_RDWR);
-    DEFX(O_APPEND);
-    DEFX(O_CREAT);
-    DEFX(O_EXCL);
-    DEFX(O_TRUNC);
-    DEFX(O_SYNC);
-#ifndef O_DSYNC
-    // At least FreeBSD doesn't define O_DSYNC
-    emit("O_DSYNC", O_SYNC);
-#else
-    DEFX(O_DSYNC);
-#endif
-#ifdef O_NOFOLLOW
-    DEFX(O_NOFOLLOW);
-#else
-    // not supported (dummy values will not be used at runtime).
-    emitX("O_NOFOLLOW", 0x0);
-#endif
-
-    // mode masks
-    emitX("S_IAMB",
-         (S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IWGRP|S_IXGRP|S_IROTH|S_IWOTH|S_IXOTH));
-    DEF(S_IRUSR);
-    DEF(S_IWUSR);
-    DEF(S_IXUSR);
-    DEF(S_IRGRP);
-    DEF(S_IWGRP);
-    DEF(S_IXGRP);
-    DEF(S_IROTH);
-    DEF(S_IWOTH);
-    DEF(S_IXOTH);
-    DEFX(S_IFMT);
-    DEFX(S_IFREG);
-    DEFX(S_IFDIR);
-    DEFX(S_IFLNK);
-    DEFX(S_IFCHR);
-    DEFX(S_IFBLK);
-    DEFX(S_IFIFO);
-
-    // access modes
-    DEF(R_OK);
-    DEF(W_OK);
-    DEF(X_OK);
-    DEF(F_OK);
-
-    // errors
-    DEF(ENOENT);
-    DEF(ENXIO);
-    DEF(EACCES);
-    DEF(EEXIST);
-    DEF(ENOTDIR);
-    DEF(EINVAL);
-    DEF(EXDEV);
-    DEF(EISDIR);
-    DEF(ENOTEMPTY);
-    DEF(ENOSPC);
-    DEF(EAGAIN);
-    DEF(ENOSYS);
-    DEF(ELOOP);
-    DEF(EROFS);
-#ifndef ENODATA
-    // Only used in Linux java source, provide any value so it compiles
-    emit("ENODATA", ELAST);
-#else
-    DEF(ENODATA);
-#endif
-    DEF(ERANGE);
-    DEF(EMFILE);
-
-    // flags used with openat/unlinkat/etc.
-#if defined(AT_SYMLINK_NOFOLLOW) && defined(AT_REMOVEDIR)
-    DEFX(AT_SYMLINK_NOFOLLOW)
-    DEFX(AT_REMOVEDIR);
-#else
-    // not supported (dummy values will not be used at runtime).
-    emitX("AT_SYMLINK_NOFOLLOW", 0x0);
-    emitX("AT_REMOVEDIR", 0x0);
-#endif
-
-    out("}                                                                              ");
-
-    return 0;
-}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.base/share/classes/sun/nio/ch/SocketOptionRegistry.java.template	Thu Mar 24 14:23:37 2016 +0100
@@ -0,0 +1,154 @@
+/*
+ * Copyright (c) 2008, 2016, 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
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+@@END_COPYRIGHT@@
+
+#include <stdio.h>
+#ifdef _WIN32
+#include <winsock2.h>
+#include <ws2tcpip.h>
+#else
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#endif
+
+/* Defines SO_REUSEPORT */
+#if !defined(SO_REUSEPORT)
+#ifdef _WIN32
+#define SO_REUSEPORT 0
+#elif __linux__
+#define SO_REUSEPORT 15
+#elif __solaris__
+#define SO_REUSEPORT 0x100e
+#elif defined(AIX) || defined(MACOSX)
+#define SO_REUSEPORT 0x0200
+#else
+#define SO_REUSEPORT 0
+#endif
+#endif
+
+/* On Solaris, "sun" is defined as a macro. Undefine to make package
+   declaration valid */
+#undef sun
+
+/* To be able to name the Java constants the same as the C constants without
+   having the preprocessor rewrite those identifiers, add PREFIX_ to all
+   identifiers matching a C constant. The PREFIX_ is filtered out in the
+   makefile. */
+
+@@START_HERE@@
+
+package sun.nio.ch;
+import java.net.SocketOption;
+import java.net.StandardSocketOptions;
+import java.net.ProtocolFamily;
+import java.net.StandardProtocolFamily;
+import java.util.Map;
+import java.util.HashMap;
+class SocketOptionRegistry {
+
+    private SocketOptionRegistry() { }
+
+    private static class RegistryKey {
+        private final SocketOption<?> name;
+        private final ProtocolFamily family;
+        RegistryKey(SocketOption<?> name, ProtocolFamily family) {
+            this.name = name;
+            this.family = family;
+        }
+        public int hashCode() {
+            return name.hashCode() + family.hashCode();
+        }
+        public boolean equals(Object ob) {
+            if (ob == null) return false;
+            if (!(ob instanceof RegistryKey)) return false;
+            RegistryKey other = (RegistryKey)ob;
+            if (this.name != other.name) return false;
+            if (this.family != other.family) return false;
+            return true;
+        }
+    }
+
+    private static class LazyInitialization {
+
+        static final Map<RegistryKey,OptionKey> options = options();
+
+        private static Map<RegistryKey,OptionKey> options() {
+            Map<RegistryKey,OptionKey> map =
+                new HashMap<RegistryKey,OptionKey>();
+            map.put(new RegistryKey(StandardSocketOptions.PREFIX_SO_BROADCAST,
+                Net.UNSPEC), new OptionKey(SOL_SOCKET, SO_BROADCAST));
+            map.put(new RegistryKey(StandardSocketOptions.PREFIX_SO_KEEPALIVE,
+                Net.UNSPEC), new OptionKey(SOL_SOCKET, SO_KEEPALIVE));
+            map.put(new RegistryKey(StandardSocketOptions.PREFIX_SO_LINGER,
+                Net.UNSPEC), new OptionKey(SOL_SOCKET, SO_LINGER));
+            map.put(new RegistryKey(StandardSocketOptions.PREFIX_SO_SNDBUF,
+                Net.UNSPEC), new OptionKey(SOL_SOCKET, SO_SNDBUF));
+            map.put(new RegistryKey(StandardSocketOptions.PREFIX_SO_RCVBUF,
+                Net.UNSPEC), new OptionKey(SOL_SOCKET, SO_RCVBUF));
+            map.put(new RegistryKey(StandardSocketOptions.PREFIX_SO_REUSEADDR,
+                Net.UNSPEC), new OptionKey(SOL_SOCKET, SO_REUSEADDR));
+            map.put(new RegistryKey(StandardSocketOptions.PREFIX_SO_REUSEPORT,
+                Net.UNSPEC), new OptionKey(SOL_SOCKET, SO_REUSEPORT));
+            // IPPROTO_TCP is 6
+            map.put(new RegistryKey(StandardSocketOptions.PREFIX_TCP_NODELAY,
+                Net.UNSPEC), new OptionKey(6, TCP_NODELAY));
+
+            // IPPROTO_IP is 0
+            map.put(new RegistryKey(StandardSocketOptions.PREFIX_IP_TOS,
+                StandardProtocolFamily.INET), new OptionKey(0, IP_TOS));
+            map.put(new RegistryKey(StandardSocketOptions.PREFIX_IP_MULTICAST_IF,
+                StandardProtocolFamily.INET), new OptionKey(0, IP_MULTICAST_IF));
+            map.put(new RegistryKey(StandardSocketOptions.PREFIX_IP_MULTICAST_TTL,
+                StandardProtocolFamily.INET), new OptionKey(0, IP_MULTICAST_TTL));
+            map.put(new RegistryKey(StandardSocketOptions.PREFIX_IP_MULTICAST_LOOP,
+                StandardProtocolFamily.INET), new OptionKey(0, IP_MULTICAST_LOOP));
+
+#ifdef AF_INET6
+            // IPPROTO_IPV6 is 41
+            map.put(new RegistryKey(StandardSocketOptions.PREFIX_IP_TOS,
+                StandardProtocolFamily.INET6), new OptionKey(41, IPV6_TCLASS));
+            map.put(new RegistryKey(StandardSocketOptions.PREFIX_IP_MULTICAST_IF,
+                StandardProtocolFamily.INET6), new OptionKey(41, IPV6_MULTICAST_IF));
+            map.put(new RegistryKey(StandardSocketOptions.PREFIX_IP_MULTICAST_TTL,
+                StandardProtocolFamily.INET6), new OptionKey(41, IPV6_MULTICAST_HOPS));
+            map.put(new RegistryKey(StandardSocketOptions.PREFIX_IP_MULTICAST_LOOP,
+                StandardProtocolFamily.INET6), new OptionKey(41, IPV6_MULTICAST_LOOP));
+#endif
+
+            map.put(new RegistryKey(ExtendedSocketOption.PREFIX_SO_OOBINLINE,
+                Net.UNSPEC), new OptionKey(SOL_SOCKET, SO_OOBINLINE));
+            return map;
+        }
+    }
+
+    public static OptionKey findOption(SocketOption<?> name, ProtocolFamily family) {
+        RegistryKey key = new RegistryKey(name, family);
+        return LazyInitialization.options.get(key);
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.base/solaris/classes/sun/nio/fs/SolarisConstants.java.template	Thu Mar 24 14:23:37 2016 +0100
@@ -0,0 +1,89 @@
+/*
+ * Copyright (c) 2008, 2016, 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
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+@@END_COPYRIGHT@@
+
+#include <stdio.h>
+#include <errno.h>
+#include <unistd.h>
+#include <sys/acl.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+
+/* On Solaris, "sun" is defined as a macro. Undefine to make package
+   declaration valid */
+#undef sun
+
+/* To be able to name the Java constants the same as the C constants without
+   having the preprocessor rewrite those identifiers, add PREFIX_ to all
+   identifiers matching a C constant. The PREFIX_ is filtered out in the
+   makefile. */
+
+@@START_HERE@@
+
+package sun.nio.fs;
+class SolarisConstants {
+
+    private SolarisConstants() { }
+
+    static final int PREFIX_O_XATTR = O_XATTR;
+    static final int PREFIX__PC_XATTR_ENABLED = _PC_XATTR_ENABLED;
+    static final int PREFIX__PC_ACL_ENABLED = _PC_ACL_ENABLED;
+    static final int PREFIX__ACL_ACE_ENABLED = _ACL_ACE_ENABLED;
+    static final int PREFIX_ACE_GETACL = ACE_GETACL;
+    static final int PREFIX_ACE_SETACL = ACE_SETACL;
+    static final int PREFIX_ACE_ACCESS_ALLOWED_ACE_TYPE = ACE_ACCESS_ALLOWED_ACE_TYPE;
+    static final int PREFIX_ACE_ACCESS_DENIED_ACE_TYPE = ACE_ACCESS_DENIED_ACE_TYPE;
+    static final int PREFIX_ACE_SYSTEM_AUDIT_ACE_TYPE = ACE_SYSTEM_AUDIT_ACE_TYPE;
+    static final int PREFIX_ACE_SYSTEM_ALARM_ACE_TYPE = ACE_SYSTEM_ALARM_ACE_TYPE;
+    static final int PREFIX_ACE_READ_DATA = ACE_READ_DATA;
+    static final int PREFIX_ACE_LIST_DIRECTORY = ACE_LIST_DIRECTORY;
+    static final int PREFIX_ACE_WRITE_DATA = ACE_WRITE_DATA;
+    static final int PREFIX_ACE_ADD_FILE = ACE_ADD_FILE;
+    static final int PREFIX_ACE_APPEND_DATA = ACE_APPEND_DATA;
+    static final int PREFIX_ACE_ADD_SUBDIRECTORY = ACE_ADD_SUBDIRECTORY;
+    static final int PREFIX_ACE_READ_NAMED_ATTRS = ACE_READ_NAMED_ATTRS;
+    static final int PREFIX_ACE_WRITE_NAMED_ATTRS = ACE_WRITE_NAMED_ATTRS;
+    static final int PREFIX_ACE_EXECUTE = ACE_EXECUTE;
+    static final int PREFIX_ACE_DELETE_CHILD = ACE_DELETE_CHILD;
+    static final int PREFIX_ACE_READ_ATTRIBUTES = ACE_READ_ATTRIBUTES;
+    static final int PREFIX_ACE_WRITE_ATTRIBUTES = ACE_WRITE_ATTRIBUTES;
+    static final int PREFIX_ACE_DELETE = ACE_DELETE;
+    static final int PREFIX_ACE_READ_ACL = ACE_READ_ACL;
+    static final int PREFIX_ACE_WRITE_ACL = ACE_WRITE_ACL;
+    static final int PREFIX_ACE_WRITE_OWNER = ACE_WRITE_OWNER;
+    static final int PREFIX_ACE_SYNCHRONIZE = ACE_SYNCHRONIZE;
+    static final int PREFIX_ACE_FILE_INHERIT_ACE = ACE_FILE_INHERIT_ACE;
+    static final int PREFIX_ACE_DIRECTORY_INHERIT_ACE = ACE_DIRECTORY_INHERIT_ACE;
+    static final int PREFIX_ACE_NO_PROPAGATE_INHERIT_ACE = ACE_NO_PROPAGATE_INHERIT_ACE;
+    static final int PREFIX_ACE_INHERIT_ONLY_ACE = ACE_INHERIT_ONLY_ACE;
+    static final int PREFIX_ACE_SUCCESSFUL_ACCESS_ACE_FLAG = ACE_SUCCESSFUL_ACCESS_ACE_FLAG;
+    static final int PREFIX_ACE_FAILED_ACCESS_ACE_FLAG = ACE_FAILED_ACCESS_ACE_FLAG;
+    static final int PREFIX_ACE_IDENTIFIER_GROUP = ACE_IDENTIFIER_GROUP;
+    static final int PREFIX_ACE_OWNER = ACE_OWNER;
+    static final int PREFIX_ACE_GROUP = ACE_GROUP;
+    static final int PREFIX_ACE_EVERYONE = ACE_EVERYONE;
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.base/unix/classes/sun/nio/fs/UnixConstants.java.template	Thu Mar 24 14:23:37 2016 +0100
@@ -0,0 +1,132 @@
+/*
+ * Copyright (c) 2008, 2016, 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
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+@@END_COPYRIGHT@@
+
+#include <stdio.h>
+#include <errno.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+
+/* On Solaris, "sun" is defined as a macro. Undefine to make package
+   declaration valid */
+#undef sun
+
+/* To be able to name the Java constants the same as the C constants without
+   having the preprocessor rewrite those identifiers, add PREFIX_ to all
+   identifiers matching a C constant. The PREFIX_ is filtered out in the
+   makefile. */
+
+@@START_HERE@@
+
+package sun.nio.fs;
+class UnixConstants {
+    private UnixConstants() { }
+    static final int PREFIX_O_RDONLY = O_RDONLY;
+    static final int PREFIX_O_WRONLY = O_WRONLY;
+    static final int PREFIX_O_RDWR = O_RDWR;
+    static final int PREFIX_O_APPEND = O_APPEND;
+    static final int PREFIX_O_CREAT = O_CREAT;
+    static final int PREFIX_O_EXCL = O_EXCL;
+    static final int PREFIX_O_TRUNC = O_TRUNC;
+    static final int PREFIX_O_SYNC = O_SYNC;
+
+#ifndef O_DSYNC
+    // At least FreeBSD doesn't define O_DSYNC
+    static final int PREFIX_O_DSYNC = O_SYNC;
+#else
+    static final int PREFIX_O_DSYNC = O_DSYNC;
+#endif
+
+#ifdef O_NOFOLLOW
+    static final int PREFIX_O_NOFOLLOW = O_NOFOLLOW;
+#else
+    // not supported (dummy values will not be used at runtime).
+    static final int PREFIX_O_NOFOLLOW = 00;
+#endif
+
+
+    static final int PREFIX_S_IAMB =
+        (S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IWGRP|S_IXGRP|S_IROTH|S_IWOTH|S_IXOTH);
+    static final int PREFIX_S_IRUSR = S_IRUSR;
+    static final int PREFIX_S_IWUSR = S_IWUSR;
+    static final int PREFIX_S_IXUSR = S_IXUSR;
+    static final int PREFIX_S_IRGRP = S_IRGRP;
+    static final int PREFIX_S_IWGRP = S_IWGRP;
+    static final int PREFIX_S_IXGRP = S_IXGRP;
+    static final int PREFIX_S_IROTH = S_IROTH;
+    static final int PREFIX_S_IWOTH = S_IWOTH;
+    static final int PREFIX_S_IXOTH = S_IXOTH;
+
+    static final int PREFIX_S_IFMT = S_IFMT;
+    static final int PREFIX_S_IFREG = S_IFREG;
+    static final int PREFIX_S_IFDIR = S_IFDIR;
+    static final int PREFIX_S_IFLNK = S_IFLNK;
+    static final int PREFIX_S_IFCHR = S_IFCHR;
+    static final int PREFIX_S_IFBLK = S_IFBLK;
+    static final int PREFIX_S_IFIFO = S_IFIFO;
+    static final int PREFIX_R_OK = R_OK;
+    static final int PREFIX_W_OK = W_OK;
+    static final int PREFIX_X_OK = X_OK;
+    static final int PREFIX_F_OK = F_OK;
+    static final int PREFIX_ENOENT = ENOENT;
+    static final int PREFIX_ENXIO = ENXIO;
+    static final int PREFIX_EACCES = EACCES;
+    static final int PREFIX_EEXIST = EEXIST;
+    static final int PREFIX_ENOTDIR = ENOTDIR;
+    static final int PREFIX_EINVAL = EINVAL;
+    static final int PREFIX_EXDEV = EXDEV;
+    static final int PREFIX_EISDIR = EISDIR;
+    static final int PREFIX_ENOTEMPTY = ENOTEMPTY;
+    static final int PREFIX_ENOSPC = ENOSPC;
+    static final int PREFIX_EAGAIN = EAGAIN;
+    static final int PREFIX_ENOSYS = ENOSYS;
+    static final int PREFIX_ELOOP = ELOOP;
+    static final int PREFIX_EROFS = EROFS;
+
+#ifndef ENODATA
+    // Only used in Linux java source, provide any value so it compiles
+    static final int PREFIX_ENODATA = ELAST;
+#else
+    static final int PREFIX_ENODATA = ENODATA;
+#endif
+
+    static final int PREFIX_ERANGE = ERANGE;
+    static final int PREFIX_EMFILE = EMFILE;
+
+    // flags used with openat/unlinkat/etc.
+#if defined(AT_SYMLINK_NOFOLLOW) && defined(AT_REMOVEDIR)
+    static final int PREFIX_AT_SYMLINK_NOFOLLOW = AT_SYMLINK_NOFOLLOW;
+    static final int PREFIX_AT_REMOVEDIR = AT_REMOVEDIR;
+#else
+    // not supported (dummy values will not be used at runtime).
+    static final int PREFIX_AT_SYMLINK_NOFOLLOW = 00;
+    static final int PREFIX_AT_REMOVEDIR = 00;
+#endif
+
+}