35 lines
768 B
C
35 lines
768 B
C
|
// 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;
|
||
|
|
}
|