C++ V8在Ubuntu上编译示例/hello-world.cc

试图在ubuntu上编译V8示例/hello-world.cc

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "include/libplatform/libplatform.h"
#include "include/v8.h"

int main(int argc, char* argv[]) {
  // Initialize V8.
  v8::V8::InitializeICUDefaultLocation(argv[0]);
  v8::V8::InitializeExternalStartupData(argv[0]);
  std::unique_ptr<v8::Platform> platform = v8::platform::NewDefaultPlatform();
  v8::V8::InitializePlatform(platform.get());
  v8::V8::Initialize();

  // Create a new Isolate and make it the current one.
  v8::Isolate::CreateParams create_params;
  create_params.array_buffer_allocator =
      v8::ArrayBuffer::Allocator::NewDefaultAllocator();
  v8::Isolate* isolate = v8::Isolate::New(create_params);
  {
    v8::Isolate::Scope isolate_scope(isolate);

    // Create a stack-allocated handle scope.
    v8::HandleScope handle_scope(isolate);

    // Create a new context.
    v8::Local<v8::Context> context = v8::Context::New(isolate);

    // Enter the context for compiling and running the hello world script.
    v8::Context::Scope context_scope(context);

// Create a string containing the JavaScript source code.
    v8::Local<v8::String> source =
        v8::String::NewFromUtf8(isolate, "'Hello' + ', World!'",
                                v8::NewStringType::kNormal)
            .ToLocalChecked();

    // Compile the source code.
    v8::Local<v8::Script> script =
        v8::Script::Compile(context, source).ToLocalChecked();

    // Run the script to get the result.
    v8::Local<v8::Value> result = script->Run(context).ToLocalChecked();

    // Convert the result to an UTF8 string and print it.
    v8::String::Utf8Value utf8(isolate, result);
    printf("%s\n", *utf8);
  }

  // Dispose the isolate and tear down V8.
  isolate->Dispose();
  v8::V8::Dispose();
  v8::V8::ShutdownPlatform();
  delete create_params.array_buffer_allocator;
  return 0;
}

并得到一个错误：

hello-world.cc:(.text+0x75): undefined reference to
v8::platform::NewDefaultPlatform(int, v8::platform::IdleTaskSupport,
v8::platform::InProcessStackDumping,
std::unique_ptr<v8::TracingController,
std::default_delete<v8::TracingController> >)

hello world.cc:（.text+0x75）：未定义对的引用
v8:：platform:：NewDefaultPlatform（int，v8:：platform:：IdleTaskSupport，
v8:：平台：：InProcessStackDumping，
标准：：唯一性（ptr）

请注意，我使用GN args构建了V8：

“is_debug=false，is_official\u build=true，is_component\u build=true，is_cfi=false，is_clangg=false，v8_use\u external\u startup\u data=false，视警告为_errors=false，use_custom\u libcxx=false，use_sysroot=false，use_gold=false”

---

在编译器命令行中，尝试删除

\

out.gn/x64.release/libv8\u libplatform.so之后的

\

，我对V8构建或编译示例/hello world.cc是否有问题

\

是一个“转义”字符，因此它改变了以下空格的解释方式——具体来说，它使其成为文件名的一部分，而不是文件名分隔符，从而导致文件名不存在

---

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如果您收到错误消息，您必须这样做。请单击“编辑”并将代码粘贴到问题中，然后格式化。添加了代码。非常好。看起来好多了。

hello-world.cc:(.text+0x75): undefined reference to
v8::platform::NewDefaultPlatform(int, v8::platform::IdleTaskSupport,
v8::platform::InProcessStackDumping,
std::unique_ptr<v8::TracingController,
std::default_delete<v8::TracingController> >)