1 #
   2 # Copyright (c) 2011, 2014, Oracle and/or its affiliates. All rights reserved.
   3 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4 #
   5 # This code is free software; you can redistribute it and/or modify it
   6 # under the terms of the GNU General Public License version 2 only, as
   7 # published by the Free Software Foundation.  Oracle designates this
   8 # particular file as subject to the "Classpath" exception as provided
   9 # by Oracle in the LICENSE file that accompanied this code.
  10 #
  11 # This code is distributed in the hope that it will be useful, but WITHOUT
  12 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14 # version 2 for more details (a copy is included in the LICENSE file that
  15 # accompanied this code).
  16 #
  17 # You should have received a copy of the GNU General Public License version
  18 # 2 along with this work; if not, write to the Free Software Foundation,
  19 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20 #
  21 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22 # or visit www.oracle.com if you need additional information or have any
  23 # questions.
  24 #
  25 
  26 DISABLE_WARNINGS := -Xlint:all,-deprecation,-unchecked,-rawtypes,-cast,-serial,-dep-ann,-static,-fallthrough,-try,-varargs,-empty,-finally
  27 
  28 # To build with all warnings enabled, do the following:
  29 # make JAVAC_WARNINGS="-Xlint:all -Xmaxwarns 10000"
  30 JAVAC_WARNINGS := -Xlint:-unchecked,-deprecation,-overrides,auxiliaryclass,classfile,dep-ann,divzero,empty,overloads,static,try,varargs -Werror
  31 
  32 # Any java code executed during a JDK build to build other parts of the JDK must be 
  33 # executed by the bootstrap JDK (probably with -Xbootclasspath/p: ) and for this 
  34 # purpose must be built with -target PREVIOUS for bootstrapping purposes, which 
  35 # requires restricting to language level and api of previous JDK.
  36 #
  37 # The generate old bytecode javac setup uses the new compiler to compile for the
  38 # boot jdk to generate tools that need to be run with the boot jdk.
  39 # Thus we force the target bytecode to the previous JDK version.
  40 $(eval $(call SetupJavaCompiler,GENERATE_OLDBYTECODE, \
  41     JVM := $(JAVA), \
  42     JAVAC := $(NEW_JAVAC), \
  43     FLAGS := $(BOOT_JDK_SOURCETARGET) -bootclasspath $(BOOT_RTJAR) $(DISABLE_WARNINGS), \
  44     SERVER_DIR := $(SJAVAC_SERVER_DIR), \
  45     SERVER_JVM := $(SJAVAC_SERVER_JAVA)))
  46 
  47 # The generate new bytecode javac setup uses the new compiler to compile for the
  48 # new jdk. This new bytecode might only be possible to run using the new jvm.
  49 $(eval $(call SetupJavaCompiler,GENERATE_JDKBYTECODE, \
  50     JVM := $(JAVA), \
  51     JAVAC := $(NEW_JAVAC), \
  52     FLAGS := -bootclasspath $(JDK_OUTPUTDIR)/classes -source 8 -target 8 \
  53         -encoding ascii -XDignore.symbol.file=true $(JAVAC_WARNINGS) \
  54         $(GENERATE_JDKBYTECODE_EXTRA_FLAGS), \
  55     SERVER_DIR := $(SJAVAC_SERVER_DIR), \
  56     SERVER_JVM := $(SJAVAC_SERVER_JAVA)))
  57 
  58 # After the jdk is built, we want to build demos using only the recently
  59 # generated jdk classes and nothing else, no jdk source, etc etc.
  60 # I.e. the rt.jar, but since rt.jar has not yet been generated
  61 # (it will be in "make images") therefore we use classes instead.
  62 $(eval $(call SetupJavaCompiler,GENERATE_USINGJDKBYTECODE, \
  63     JVM := $(JAVA), \
  64     JAVAC := $(NEW_JAVAC), \
  65     FLAGS := -bootclasspath $(JDK_OUTPUTDIR)/classes $(DISABLE_WARNINGS), \
  66     SERVER_DIR := $(SJAVAC_SERVER_DIR), \
  67     SERVER_JVM := $(SJAVAC_SERVER_JAVA)))