| // SPDX-License-Identifier: GPL-2.0 |
| // Copyright (C) 2020 ARM Limited |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <sys/auxv.h> |
| |
| #include "helper.h" |
| |
| int main(void) |
| { |
| struct signatures signed_vals; |
| unsigned long hwcaps; |
| size_t val; |
| |
| fread(&val, sizeof(size_t), 1, stdin); |
| |
| /* don't try to execute illegal (unimplemented) instructions) caller |
| * should have checked this and keep worker simple |
| */ |
| hwcaps = getauxval(AT_HWCAP); |
| |
| if (hwcaps & HWCAP_PACA) { |
| signed_vals.keyia = keyia_sign(val); |
| signed_vals.keyib = keyib_sign(val); |
| signed_vals.keyda = keyda_sign(val); |
| signed_vals.keydb = keydb_sign(val); |
| } |
| signed_vals.keyg = (hwcaps & HWCAP_PACG) ? keyg_sign(val) : 0; |
| |
| fwrite(&signed_vals, sizeof(struct signatures), 1, stdout); |
| |
| return 0; |
| } |
