逻辑处理器核心指纹修改

navigator.hardwareConcurrency的属性,可以用来获取CPU的逻辑处理器核心数。

1、navigator.hardwareConcurrency接口定义：

third_party\blink\renderer\core\frame\navigator_concurrent_hardware.idl

// https://html.spec.whatwg.org/C/#navigator.hardwareconcurrencyinterface mixin NavigatorConcurrentHardware {[HighEntropy=Direct, MeasureAs=NavigatorHardwareConcurrency] readonly attribute unsigned long long hardwareConcurrency;
};

2、navigator.hardwareConcurrency接口实现：

third_party\blink\renderer\core\frame\navigator_concurrent_hardware.cc

third_party\blink\renderer\core\frame\navigator_concurrent_hardware.h

#include "base/system/sys_info.h"namespace blink {unsigned NavigatorConcurrentHardware::hardwareConcurrency() const {return static_cast<unsigned>(base::SysInfo::NumberOfProcessors());
}}  // namespace blink

3、在NavigatorConcurrentHardware::hardwareConcurrency()函数里面直接修改核心数为120编译看下效果：

unsigned NavigatorConcurrentHardware::hardwareConcurrency() const {return 120;//return static_cast<unsigned>(base::SysInfo::NumberOfProcessors());
}

4、调用堆栈：

5、效果：

 6、总结：

至此cpu逻辑处理器核心指纹修改完毕。