Function getauxval

numpy/core/src/common/npy_cpu_features.c:684–691

__attribute__((weak)) int elf_aux_info(int, void *, int); // linker should handle it

static unsigned long getauxval(unsigned long k)
{
    unsigned long val = 0ul;
    if (elf_aux_info == 0 || elf_aux_info((int)k, (void *)&val, (int)sizeof(val)) != 0) {
    	return 0ul;
    }
    return val;
}
#endif
static int
npy__cpu_init_features_linux(void)