如何在Linux系统中获取机器序列号和CPU ID?
示例代码是高度赞赏的。
发布于 2013-03-22 04:24:29
有一个cpuinfo.h包含在GCC中。它是安全的,使用它。
示例(我有一个叫GCC的4.7+,在这里使用auto很开心):
#include <cpuid.h>
#include <iostream>
#include <map>
#include <string>
using namespace std;
struct CPUVendorID {
unsigned int ebx;
unsigned int edx;
unsigned int ecx;
string toString() const {
return string(reinterpret_cast<const char *>(this), 12);
}
};
int main() {
unsigned int level = 0;
unsigned int eax = 0;
unsigned int ebx;
unsigned int ecx;
unsigned int edx;
__get_cpuid(level, &eax, &ebx, &ecx, &edx);
CPUVendorID vendorID { .ebx = ebx, .edx = edx, .ecx = ecx };
map<string, string> vendorIdToName;
vendorIdToName["GenuineIntel"] = "Intel";
vendorIdToName["AuthenticAMD"] = "AMD";
vendorIdToName["CyrixInstead"] = "Cyrix";
vendorIdToName["CentaurHauls"] = "Centaur";
vendorIdToName["SiS SiS SiS "] = "SiS";
vendorIdToName["NexGenDriven"] = "NexGen";
vendorIdToName["GenuineTMx86"] = "Transmeta";
vendorIdToName["RiseRiseRise"] = "Rise";
vendorIdToName["UMC UMC UMC "] = "UMC";
vendorIdToName["Geode by NSC"] = "National Semiconductor";
string vendorIDString = vendorID.toString();
auto it = vendorIdToName.find(vendorIDString);
string vendorName = (it == vendorIdToName.end()) ? "Unknown" : it->second;
cout << "Max instruction ID: " << eax << endl;
cout << "Vendor ID: " << vendorIDString << endl;
cout << "Vendor name: " << vendorName << endl;
}
输出:
$ make
g++ --std=c++11 main.cc -o cpuid
$ ./cpuid
Max instruction ID: 6
Vendor ID: GenuineIntel
Vendor name: Intel
发布于 2011-06-27 18:43:47
可以从/proc/cpuinfo
中提取的关于处理器的信息。
要获得序列号,您应该查看一下dmidecode
。我现在没有查看,但dmidecode
可以向您显示序列号,因此我将从那里开始。
发布于 2013-10-29 19:08:32
#include <stdio.h>
void getPSN(char *PSN)
{
int varEAX, varEBX, varECX, varEDX;
char str[9];
//%eax=1 gives most significant 32 bits in eax
__asm__ __volatile__ ("cpuid" : "=a" (varEAX), "=b" (varEBX), "=c" (varECX), "=d" (varEDX) : "a" (1));
sprintf(str, "%08X", varEAX); //i.e. XXXX-XXXX-xxxx-xxxx-xxxx-xxxx
sprintf(PSN, "%C%C%C%C-%C%C%C%C", str[0], str[1], str[2], str[3], str[4], str[5], str[6], str[7]);
//%eax=3 gives least significant 64 bits in edx and ecx [if PN is enabled]
__asm__ __volatile__ ("cpuid" : "=a" (varEAX), "=b" (varEBX), "=c" (varECX), "=d" (varEDX) : "a" (3));
sprintf(str, "%08X", varEDX); //i.e. xxxx-xxxx-XXXX-XXXX-xxxx-xxxx
sprintf(PSN, "%s-%C%C%C%C-%C%C%C%C", PSN, str[0], str[1], str[2], str[3], str[4], str[5], str[6], str[7]);
sprintf(str, "%08X", varECX); //i.e. xxxx-xxxx-xxxx-xxxx-XXXX-XXXX
sprintf(PSN, "%s-%C%C%C%C-%C%C%C%C", PSN, str[0], str[1], str[2], str[3], str[4], str[5], str[6], str[7]);
}
int main()
{
char PSN[30]; //24 Hex digits, 5 '-' separators, and a '\0'
getPSN(PSN);
printf("%s\n", PSN); //compare with: lshw | grep serial:
return 0;
}
https://stackoverflow.com/questions/6491566
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