感谢文洋兄的思路。亲测有效。

[root@storage GetCpuType]# ./main.o

Intel(R) Xeon(R) CPU C5528 @ 2.13GHz

 

#include <stdio.h>

#include <stdlib.h>

char x86_model_id[64];

static inline void

cpuid(unsigned int op, unsigned int *a, unsigned int *b, unsigned int *c,

unsigned int *d)

{

__asm__ __volatile__ (".byte 0x53\n\tcpuid\n\t"

"movl %%ebx, %%esi\n\t.byte 0x5b"

: "=a" (*a),

"=S" (*b),

"=c" (*c),

"=d" (*d)

: "a" (op));

}

static void get_model_name()

{

unsigned int *v;

char *p, *q;

v = (unsigned int *)x86_model_id;

cpuid(0x80000002, &v[0], &v[1], &v[2], &v[3]);

cpuid(0x80000003, &v[4], &v[5], &v[6], &v[7]);

cpuid(0x80000004, &v[8], &v[9], &v[10], &v[11]);

x86_model_id[48] = 0;

/*

* Intel chips right-justify this string for some dumb reason;

* undo that brain damage:

*/

p = q = &x86_model_id[0];

while (*p == ' ')

p++;

if (p != q) {

while (*p)

*q++ = *p++;

while (q <= &x86_model_id[48])

*q++ = '\0'; /* Zero-pad the rest */

}

}

int main()

{

get_model_name();

printf("%s \n", x86_model_id);

return 0;

}