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79 lines
2.8 KiB
79 lines
2.8 KiB
/* |
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* Copyright (c) 2017 The strace developers. |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. The name of the author may not be used to endorse or promote products |
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* derived from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#include "tests.h" |
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#include <stdint.h> |
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#include <stdio.h> |
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#include <sys/mman.h> |
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#include <unistd.h> |
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#include <asm/unistd.h> |
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static const char *errstr; |
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static long |
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k_madvise(const kernel_ulong_t addr, |
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const kernel_ulong_t length, |
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const kernel_ulong_t advice) |
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{ |
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long rc = syscall(__NR_madvise, addr, length, advice); |
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errstr = sprintrc(rc); |
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return rc; |
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} |
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int |
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main(void) |
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{ |
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const unsigned long length = get_page_size(); |
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void *const addr = tail_alloc(length); |
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long rc; |
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rc = madvise(addr, length, MADV_NORMAL); |
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printf("madvise(%p, %lu, MADV_NORMAL) = %s\n", |
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addr, length, sprintrc(rc)); |
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static const kernel_ulong_t advice = |
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(kernel_ulong_t) 0xfacefeed00000000ULL | MADV_RANDOM; |
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rc = k_madvise((uintptr_t) addr, length, advice); |
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printf("madvise(%p, %lu, MADV_RANDOM) = %s\n", |
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addr, length, sprintrc(rc)); |
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static const kernel_ulong_t bogus_length = |
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(kernel_ulong_t) 0xfffffffffffffaceULL; |
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rc = k_madvise(0, bogus_length, MADV_SEQUENTIAL); |
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printf("madvise(NULL, %llu, MADV_SEQUENTIAL) = %s\n", |
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(unsigned long long) bogus_length, sprintrc(rc)); |
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if (F8ILL_KULONG_SUPPORTED) { |
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rc = k_madvise(f8ill_ptr_to_kulong(addr), length, MADV_NORMAL); |
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printf("madvise(%#llx, %lu, MADV_NORMAL) = %s\n", |
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(unsigned long long) f8ill_ptr_to_kulong(addr), |
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length, sprintrc(rc)); |
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} |
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puts("+++ exited with 0 +++"); |
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return 0; |
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}
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