如何在macOS上编译OpenJDK 11 ?

Question

当我用:

配置概要:

• 调试级别:fastdebug
• HS调试级别:fastdebug
• JVM变量:server
• JVM特性:server: 'aot cds cmsgc compiler1 compiler2 dtrace epsilongc g1gc graal jfr jvmci jvmti management nmt parallelgc serialgc services vm-structs'
• OpenJDK目标:OS: macosx, CPU架构:x86，地址长度:64
• 版本字符串:11.0.16-internal+0-adhoc.sadman。jdk11u-dev-master (11.0.16-internal)

工具简介:

• 启动JDK: openjdk version "11.0.2"OpenJDK 64位Server VM 18.9 (build 11.0.2+9, mixed mode) (at/Library/Java/JavaVirtualMachines/jdk-11.0.2.jdk/Contents/Home)
• 工具链:clang (clang/LLVM from Xcode 13.4)
• C编译器:Version 13.1.6 (at/usr/bin/clang)
• c++ Compiler: Version 13.1.6 (at/usr/bin/clang++)

Build performance summary:

• 要使用的内核数:12
• 内存限制:16384 MB

它提醒我

jdk11u-dev-master/src/hotspot/share/jfr/periodic/jfrNetworkUtilization.cpp:59:30: error:类函数宏调用参数太多assert(interfaces != NULL， "invariant");

/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/sdk/MacOSX12.3.sdk/usr/include/assert.h:98:9:注:宏'assert'定义在这里#define assert(e)

这意味着jdk的源代码使用两个参数断言，但我的Mac只支持一个参数断言。

Answer 1

在jdk11u源代码的./test/hotspot/gtest/unittest.hpp中有这样的注释和对assert的重新定义:

// gtest/gtest.h includes assert.h which will define the assert macro, but hotspot has its
// own standards incompatible assert macro that takes two parameters.
// The workaround is to undef assert and then re-define it. The re-definition
// must unfortunately be copied since debug.hpp might already have been
// included and a second include wouldn't work due to the header guards in debug.hpp.
#ifdef assert
#undef assert
#ifdef vmassert
#define assert(p, ...) vmassert(p, __VA_ARGS__)
#endif
#endif

不知何故，这已经打破了test/hotspot/gtest/jfr/test_networkUtilization.cpp…似乎assert在unittest.hpp之后的一个包含中被重新定义。

您可以通过将unittest.hpp的#include向下移动一点来修复编译，参见以下差异:

--- a/test/hotspot/gtest/jfr/test_networkUtilization.cpp
+++ b/test/hotspot/gtest/jfr/test_networkUtilization.cpp
@@ -42,12 +42,12 @@
#include "utilities/globalDefinitions.hpp"
#include "utilities/growableArray.hpp"

-#include "unittest.hpp"
-
#include <vector>
#include <list>
#include <map>

+#include "unittest.hpp"
+
namespace {

class MockFastUnorderedElapsedCounterSource : public ::FastUnorderedElapsedCounterSource {

Answer 2

在macos monterey上编译openjdk11成功