macOS High Sierra 编译 OpenJDK8.md

[johnwatsondev]

下载代码

根据 jdk8u 中 Source code 中的提示

hg clone http://hg.openjdk.java.net/jdk8u/jdk8u/
cd jdk8u
sh get_source.sh
// 切换分支
hg up jdk8u172-b11

准备工作

构建环境变量脚本

vi setEnv.sh

然后复制以下文本，最后记得执行 :x 保存退出

# 设定语言选项，必须设置
export LANG=C
# Mac平台，C编译器不再是GCC，是clang
export CC=clang
export CXX=clang++
# 跳过clang的一些严格的语法检查，不然会将N多的警告作为Error
export COMPILER_WARNINGS_FATAL=false
# 链接时使用的参数
export LFLAGS='-Xlinker -lstdc++'
# 是否使用clang
export USE_CLANG=true
# 使用64位数据模型
export LP64=1
# 告诉编译平台是64位，不然会按32位来编译
export ARCH_DATA_MODEL=64
# 允许自动下载依赖
export ALLOW_DOWNLOADS=true
# 并行编译的线程数，编译时间长，为了不影响其他工作，我选择为2
export HOTSPOT_BUILD_JOBS=2
# 是否跳过与先前版本的比较
export SKIP_COMPARE_IMAGES=true
# 是否使用预编译头文件，加快编译速度
export USE_PRECOMPILED_HEADER=true
# 是否使用增量编译
export INCREMENTAL_BUILD=true
# 编译内容
export BUILD_LANGTOOLS=true
export BUILD_JAXP=true
export BUILD_JAXWS=true
export BUILD_CORBA=true
export BUILD_HOTSPOT=true
export BUILD_JDK=true
# 编译版本
export SKIP_DEBUG_BUILD=true
export SKIP_FASTDEBUG_BUILD=false
export DEBUG_NAME=debug
# 避开javaws和浏览器Java插件之类的部分的build
export BUILD_DEPLOY=false
export BUILD_INSTALL=false
unset JAVA_HOME

然后 chmod 755 setEnv.sh，执行的时候直接使用 ./setEnv.sh 即可

必须使用 JDK7

详情请查看 README-builds.html 中的解释

安装 freetype

brew install freetype

不需要安装 ccache

请看这里的解释

构建执行 configure 的脚本

vi build.sh

然后复制以下文本：

bash ./configure  --with-freetype-include=/usr/local/include/freetype2 --with-freetype-lib=/usr/local/lib/ --with-boot-jdk=/Library/Java/JavaVirtualMachines/jdk1.7.0_71.jdk/Contents/Home --with-debug-level=slowdebug

执行脚本

// 进入根目录
cd jdk8u
// 设置环境变量
./setEnv.sh
// 执行 bash ./configure
./build.sh
// 编译
make all

执行 bash configure 报错

需要 Xcode 4

运行 bash ./configure 报错：

checking for xcodebuild... /usr/bin/xcodebuild
configure: error: Xcode 4 is required to build JDK 8, the version found was 9.3. Use --with-xcode-path to specify the location of Xcode 4 or make Xcode 4 active by using xcode-select.

解决办法：
vi ./common/autoconf/generated-configure.sh
然后，注释掉 19369 行附近代码段中 if block 包含代码

# Fail-fast: verify we're building on Xcode 4, we cannot build with Xcode 5 or later
XCODE_VERSION=`$XCODEBUILD -version | grep '^Xcode ' | sed 's/Xcode //'`
XC_VERSION_PARTS=( ${XCODE_VERSION//./ } )
#if test ! "${XC_VERSION_PARTS[0]}" = "4"; then
	#as_fn_error $? "Xcode 4 is required to build JDK 8, the version found was $XCODE_VERSION. Use --with-xcode-path to specify the location of Xcode 4 or make Xcode 4 active by using xcode-select." "$LINENO" 5
#fi

需要 GCC 编译器

configure: error: GCC compiler is required. Try setting --with-tools-dir.

解决办法：

先找到报错文件行数

$ grep -rn "GCC compiler is required." ./common/autoconf
./common/autoconf/toolchain.m4:129:      AC_MSG_ERROR([GCC compiler is required. Try setting --with-tools-dir.])
./common/autoconf/generated-configure.sh:20398:      #as_fn_error $? "GCC compiler is required. Try setting --with-tools-dir." "$LINENO" 5
./common/autoconf/generated-configure.sh:22000:      #as_fn_error $? "GCC compiler is required. Try setting --with-tools-dir." "$LINENO" 5

打开文件 vi ./common/autoconf/generated-configure.sh 然后注释掉即可

make 编译报错

cpp 文件报错

/Users/shenxing/Development/Projects/Java/OpenJdk/jdk8u/hotspot/src/share/vm/opto/lcm.cpp:52:35: error: ordered comparison between pointer and zero ('address' (aka 'unsigned char *') and 'int')
  if (Universe::narrow_oop_base() > 0) { // Implies UseCompressedOops.

/Users/shenxing/Development/Projects/Java/OpenJdk/jdk8u/hotspot/src/share/vm/opto/loopPredicate.cpp:872:73: error: ordered comparison between pointer and zero ('const TypeInt *' and 'int')
      assert(rng->Opcode() == Op_LoadRange || _igvn.type(rng)->is_int() >= 0, "must be");

/Users/shenxing/Development/Projects/Java/OpenJdk/jdk8u/hotspot/src/share/vm/runtime/virtualspace.cpp:345:14: error: ordered comparison between pointer and zero ('char *' and 'int')
  if (base() > 0) {

解决办法：

vi ./hotspot/src/share/vm/opto/lcm.cpp
vi ./hotspot/src/share/vm/opto/loopPredicate.cpp
vi ./hotspot/src/share/vm/runtime/virtualspace.cpp

> 0 改为 != NULL

configure 配置问题

error: invalid argument '-std=gnu++98' not allowed with 'C'

解决办法：

vi common/autoconf/generated-configure.sh

  case $COMPILER_NAME in
    gcc )
      COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK -W -Wall -Wno-unused -Wno-parentheses \
      -pipe \
      -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE"
      CXXSTD_CXXFLAG="-std=gnu++98"

注释掉 CXXSTD_CXXFLAG="-std=gnu++98" 这一行

找不到 x86_64 符号

Undefined symbols for architecture x86_64:
  "_attachCurrentThread", referenced from:
      +[ThreadUtilities getJNIEnv] in ThreadUtilities.o
      +[ThreadUtilities getJNIEnvUncached] in ThreadUtilities.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

解决办法：
vi ./jdk/src/macosx/native/sun/osxapp/ThreadUtilities.m
然后把
inline void attachCurrentThread(void** env) {
改为
static inline void attachCurrentThread(void** env) {

Reference

mac 10.13.x编译openjdk8
Mac 编译 OpenJDK 7