2

我已经使用这些说明为 Windows 构建了 openj9：https ://github.com/eclipse/openj9/blob/master/buildenv/Build_Instructions_V8.md#windows

当我尝试以下代码时（Visual Studio 2017）：

J9PortLibraryVersion portver;
J9PORT_SET_VERSION(&portver, J9PORT_CAPABILITY_MASK);

J9PortLibrary *portlib;
int32_t rc = j9port_allocate_library(&portver, &portlib);
if (rc != 0)
{
    printf("j9port_allocate_library failed with: %d\n", rc);
    return 1;
}

rc = j9port_create_library(portlib, &portver, sizeof(J9PortLibrary));
if (rc != 0)
{
    printf("j9port_create_library failed with %d\n", rc);
    return 1;
}

rc = j9port_startup_library(portlib);
if (rc != 0)
{
    printf("j9port_startup_library failed with %d\n", rc);
    return 1;
}
printf("j9port_startup_library: %d\n", rc);

我收到访问冲突j9port_startup_library：Exception thrown at 0x00007FFF0FC9430A (j9thr29.dll) in sample.exe: 0xC0000005: Access violation reading location 0x0000000000000000.

检查 portlib 表明 portGlobals 是NULL我认为不应该的。 端口库

当我在调试器之外运行 exe 时，我看到以下断言（由于某种原因我在调试器中看不到）：

** 断言失败 ** j9prt.504 at common/j9port.c:404 Assert_PRT_true((omrthread_self() != ((void *)0)))

** 断言失败 ** omrport.0 at ../../omr/port/common/omrport.c:515 Assert_PRT_true((omrthread_self() != ((void *)0)))

我错过了一个步骤还是导致此访问冲突的原因是什么？

编辑：我使用 Visual Studio 2010 在 Windows 7 x64 上重建项目并在 VS2010 中运行在 MCE 之上，VS 显示我们崩溃了

omrthread.c

static omrthread_monitor_t
monitor_allocate(omrthread_t self, intptr_t policy, intptr_t policyData)
{
   omrthread_monitor_t newMonitor;
   omrthread_library_t lib = self->library;

self 为 nil，因此抛出 ACCESS_VIOLATION： screenshot 在此处输入图像描述.com/MMW59.png

4

1 回答 1

-1

这是在 Eclipse OpenJ9 github 项目中提出的：https ://github.com/eclipse/openj9/issues/1564

答案是按如下方式初始化端口库：

int main(int argc, char **argv) {
    omrthread_t attachedThread = NULL;
    J9PortLibraryVersion portver;
    J9PortLibrary portlib;
    intptr_t rc;
    intptr_t fd;

    rc = omrthread_init_library();
    if (rc != 0) {
        printf("omrthread_init_library failed with: %lld\n", rc);
        return 1;
    }

    rc = omrthread_attach_ex(&attachedThread, J9THREAD_ATTR_DEFAULT);
    if (rc != 0) {
        printf("omrthread_attach_ex failed with: %lld\n", rc);
        return 1;
    }

    J9PORT_SET_VERSION(&portver, J9PORT_CAPABILITY_MASK);
    rc = j9port_init_library(&portlib, &portver, sizeof(portlib));
    if (rc != 0) {
        printf("j9port_init_library failed with: %lld\n", rc);
        return 1;
    }
于 2018-05-02T04:58:34.787 回答