cregit-Linux how code gets into the kernel

Release 4.10 tools/testing/selftests/powerpc/alignment/copy_unaligned.c

/*
 * Copyright 2016, Chris Smart, IBM Corporation.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version
 * 2 of the License, or (at your option) any later version.
 *
 * Calls to copy which are not 128-byte aligned should be caught
 * and sent a SIGBUS.
 *
 */

#include <string.h>
#include <unistd.h>
#include "utils.h"
#include "instructions.h"
#include "copy_paste_unaligned_common.h"


unsigned int expected_instruction = PPC_INST_COPY;

unsigned int instruction_mask = 0xfc0007fe;


int test_copy_unaligned(void) { /* Only run this test on a P9 or later */ SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_00)); /* Register our signal handler with SIGBUS */ setup_signal_handler(); /* +1 makes buf unaligned */ copy(cacheline_buf+1); /* We should not get here */ return 1; }

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chris smartchris smart33100.00%1100.00%
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int main(int argc, char *argv[]) { return test_harness(test_copy_unaligned, "test_copy_unaligned"); }

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chris smartchris smart21100.00%1100.00%
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chris smartchris smart82100.00%1100.00%
Total82100.00%1100.00%
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