#include <sys/auxv.h>

#include <errno.h>
#include <stdio.h>

int
main(void)
{
        int ret = 0;
        int a;
        unsigned long b;
        unsigned long long c;

        /* Should always succeed */
        if (elf_aux_info(AT_PAGESZ, &a, sizeof(a)))
                ret |= 1;
        else
                fprintf(stderr, "AT_PAGESZ %d\n", a);

        /* Wrong size */
        if (elf_aux_info(AT_PAGESZ, &c, sizeof(c)) != EINVAL)
                ret |= 2;

        /* Invalid request */
        if (elf_aux_info(-1, &a, sizeof(a)) != EINVAL)
                ret |= 4;

        /* Should either succeed or fail with ENOENT if not supported */
        switch (elf_aux_info(AT_HWCAP, &b, sizeof(b))) {
        case 0:
                fprintf(stderr, "AT_HWCAP %lx\n", b);
                break;
        case ENOENT:
                break;
        default:
                ret |= 8;
        }

        /* Should either succeed or fail with ENOENT if not supported */
        switch (elf_aux_info(AT_HWCAP2, &b, sizeof(b))) {
        case 0:
                fprintf(stderr, "AT_HWCAP2 %lx\n", b);
                break;
        case ENOENT:
                break;
        default:
                ret |= 16;
        }

        if (ret)
                fprintf(stderr, "FAILED (status %x)\n", ret);

        return ret;
}