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