I'm trying to cross-compile a simple C program to aarch64 (arm64) from a 64bit Ubuntu Linux. Can someone please help me why i'm getting this error.
It says 'cpuid.h' is not found. I've tried compiling it on the 64bit linux, it works fine. But when using aarch64-linux-gnu-gcc it is giving errors.
I'm getting the following error.
aarch64-linux-gnu-gcc -O1 -fno-stack-protector -march=armv8-a test.c -o test
test.c:4:10: fatal error: cpuid.h: No such file or directory
4 | #include <cpuid.h>
| ^~~~~~~~~
compilation terminated.
The contents of test.c:
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <cpuid.h>
// Requires that the user input the CPUID,
// plus the bytes "3" and "Q";
void succeed(char* string) {
printf("Yes, %s is correct!\n", string);
exit(0);
}
void fail(char* string) {
printf("No, %s is not correct.\n", string);
exit(1);
}
void shift_int_to_char(int i, char* buff) {
buff[0] = (i) & 0xFF;
buff[1] = (i >> 8) & 0xFF;
buff[2] = (i >> 16) & 0xFF;
buff[3] = (i >> 24) & 0xFF;
}
int main(int argc, char** argv) {
if (argc != 2) {
printf("Need exactly one argument.\n");
return -1;
}
unsigned int eax, ebx, ecx, edx;
char* buff = malloc(sizeof(char) * 15);
__get_cpuid(0, &eax, &ebx, &ecx, &edx);
shift_int_to_char(ebx, buff);
shift_int_to_char(edx, buff + 4);
shift_int_to_char(ecx, buff + 8);
buff[12] = '3';
buff[13] = 'Q';
buff[14] = '\0';
int correct = (strcmp(buff, argv[1]) == 0);
free(buff);
if (correct) {
succeed(argv[1]);
} else {
fail(argv[1]);
}
}
