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-rw-r--r--tools/testing/selftests/powerpc/alignment/paste_unaligned.c43
1 files changed, 43 insertions, 0 deletions
diff --git a/tools/testing/selftests/powerpc/alignment/paste_unaligned.c b/tools/testing/selftests/powerpc/alignment/paste_unaligned.c
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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 paste which are not 128-byte aligned should be caught
10 * 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_PASTE;
21unsigned int instruction_mask = 0xfc0007fe;
22
23int test_paste_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 copy(cacheline_buf);
32
33 /* +1 makes buf unaligned */
34 paste(cacheline_buf+1);
35
36 /* We should not get here */
37 return 1;
38}
39
40int main(int argc, char *argv[])
41{
42 return test_harness(test_paste_unaligned, "test_paste_unaligned");
43}