80 lines
2.8 KiB
C
80 lines
2.8 KiB
C
/*
|
|
* 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;
|
|
}
|