tjh.dev
Linux kernel mirror (for testing)
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1/*
2 * Copyright 2016, Chris Smart, IBM Corporation.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 *
9 * Calls to copy_first which are not 128-byte aligned should be
10 * caught and sent a SIGBUS.
11 *
12 */
13
14#include <string.h>
15#include <unistd.h>
16#include "utils.h"
17#include "instructions.h"
18#include "copy_paste_unaligned_common.h"
19
20unsigned int expected_instruction = PPC_INST_COPY_FIRST;
21unsigned int instruction_mask = 0xfc2007fe;
22
23int test_copy_first_unaligned(void)
24{
25 /* Only run this test on a P9 or later */
26 SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_00));
27
28 /* Register our signal handler with SIGBUS */
29 setup_signal_handler();
30
31 /* +1 makes buf unaligned */
32 copy_first(cacheline_buf+1);
33
34 /* We should not get here */
35 return 1;
36}
37
38int main(int argc, char *argv[])
39{
40 return test_harness(test_copy_first_unaligned, "test_copy_first_unaligned");
41}