1 #
   2 # Copyright (c) 2011, 2018, 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 ifndef _SETUP_GMK
  27 _SETUP_GMK := 1
  28 
  29 # Include custom extension hook
  30 $(eval $(call IncludeCustomExtension, common/SetupJavaCompilers.gmk))
  31 
  32 include JavaCompilation.gmk
  33 
  34 DISABLE_WARNINGS ?= -Xlint:all,-deprecation,-removal,-unchecked,-rawtypes,-cast,-serial,-dep-ann,-static,-fallthrough,-try,-varargs,-empty,-finally
  35 
  36 # If warnings needs to be non-fatal for testing purposes use a command like:
  37 # make JAVAC_WARNINGS="-Xlint:all -Xmaxwarns 10000"
  38 JAVAC_WARNINGS ?= -Xlint:all -Werror
  39 
  40 # The BOOT_JAVAC setup uses the boot jdk compiler to compile the tools
  41 # and the interim javac, to be run by the boot jdk.
  42 $(eval $(call SetupJavaCompiler,BOOT_JAVAC, \
  43     JAVAC := $(JAVAC), \
  44     FLAGS := \
  45         $(JAVA_TOOL_FLAGS_SMALL) \
  46         $(BOOT_JDK_SOURCETARGET) \
  47         -XDignore.symbol.file=true -g \
  48         -Xlint:all$(COMMA)-deprecation$(COMMA)-options -Werror, \
  49     DISABLE_SJAVAC := true, \
  50 ))
  51 
  52 # Any java code executed during a JDK build to build other parts of the JDK must be
  53 # executed by the bootstrap JDK (probably with -Xbootclasspath/p: ) and for this
  54 # purpose must be built with -target PREVIOUS for bootstrapping purposes, which
  55 # requires restricting to language level and api of previous JDK.
  56 #
  57 # The generate old bytecode javac setup uses the new compiler to compile for the
  58 # boot jdk to generate tools that need to be run with the boot jdk.
  59 # Thus we force the target bytecode to the previous JDK version.
  60 # Add -Xlint:-options to avoid the warning about not setting -bootclasspath. Since
  61 # it's running on the boot jdk, the default bootclasspath is correct.
  62 $(eval $(call SetupJavaCompiler,GENERATE_OLDBYTECODE, \
  63     JVM := $(JAVA_SMALL), \
  64     JAVAC := $(NEW_JAVAC), \
  65     FLAGS := $(BOOT_JDK_SOURCETARGET) -XDignore.symbol.file=true -XDstringConcat=inline \
  66         $(DISABLE_WARNINGS) -Xlint:-options, \
  67     SERVER_DIR := $(SJAVAC_SERVER_DIR), \
  68     SERVER_JVM := $(SJAVAC_SERVER_JAVA)))
  69 
  70 # The generate new bytecode javac setup uses the new compiler to compile for the
  71 # new jdk. This new bytecode might only be possible to run using the new jvm.
  72 $(eval $(call SetupJavaCompiler,GENERATE_JDKBYTECODE, \
  73     JVM := $(JAVA_JAVAC), \
  74     JAVAC := $(NEW_JAVAC), \
  75     FLAGS := -source 12 -target 12 --doclint-format html5 \
  76         -encoding ascii -XDignore.symbol.file=true $(JAVAC_WARNINGS), \
  77     SERVER_DIR := $(SJAVAC_SERVER_DIR), \
  78     SERVER_JVM := $(SJAVAC_SERVER_JAVA)))
  79 
  80 # The generate new bytecode javac setup uses the new compiler to compile for the
  81 # new jdk. This new bytecode might only be possible to run using the new jvm.
  82 $(eval $(call SetupJavaCompiler,GENERATE_JDKBYTECODE_NOWARNINGS, \
  83     JVM := $(JAVA_JAVAC), \
  84     JAVAC := $(NEW_JAVAC), \
  85     FLAGS := -source 12 -target 12 \
  86         -encoding ascii -XDignore.symbol.file=true $(DISABLE_WARNINGS), \
  87     SERVER_DIR := $(SJAVAC_SERVER_DIR), \
  88     SERVER_JVM := $(SJAVAC_SERVER_JAVA)))
  89 
  90 # After the jdk is built, we want to build demos using only the recently
  91 # generated jdk classes and nothing else, no jdk source, etc etc.
  92 # I.e. the rt.jar, but since rt.jar has not yet been generated
  93 # (it will be in "make images") therefore we use classes instead.
  94 $(eval $(call SetupJavaCompiler,GENERATE_USINGJDKBYTECODE, \
  95     JVM := $(JAVA_SMALL), \
  96     JAVAC := $(NEW_JAVAC), \
  97     FLAGS := --upgrade-module-path $(JDK_OUTPUTDIR)/modules --system none $(DISABLE_WARNINGS), \
  98     SERVER_DIR := $(SJAVAC_SERVER_DIR), \
  99     SERVER_JVM := $(SJAVAC_SERVER_JAVA)))
 100 
 101 # Use boot javac to generate JDK 8 compatible class files explicitly
 102 $(eval $(call SetupJavaCompiler,GENERATE_8_BYTECODE, \
 103     JAVAC := $(JAVAC), \
 104     FLAGS := \
 105         $(JAVA_TOOL_FLAGS_SMALL) \
 106         --release 8 \
 107         -XDignore.symbol.file=true -g \
 108         -Xlint:all -Werror, \
 109     DISABLE_SJAVAC := true, \
 110 ))
 111 
 112 endif # _SETUP_GMK