/*
|
* Check decoding of move_pages syscall.
|
*
|
* Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
|
* Copyright (c) 2016-2018 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 <asm/unistd.h>
|
|
#ifdef __NR_move_pages
|
|
# include <errno.h>
|
# include <stdio.h>
|
# include <unistd.h>
|
|
# define MAX_STRLEN 3
|
|
static void
|
print_page_array(const void **const pages,
|
const unsigned long count,
|
const unsigned int offset)
|
{
|
if (!count) {
|
printf("%s", pages ? "[]" : "NULL");
|
return;
|
}
|
if (count <= offset) {
|
printf("%p", pages);
|
return;
|
}
|
printf("[");
|
unsigned long i;
|
for (i = 0; i < count; ++i) {
|
if (i)
|
printf(", ");
|
if (i + offset < count) {
|
if (i >= MAX_STRLEN) {
|
printf("...");
|
break;
|
}
|
} else {
|
printf("... /* %p */", pages + i);
|
break;
|
}
|
const void *const addr = pages[i];
|
if (addr)
|
printf("%p", addr);
|
else
|
printf("NULL");
|
}
|
printf("]");
|
}
|
|
static void
|
print_node_array(const int *const nodes,
|
const unsigned long count,
|
const unsigned int offset)
|
{
|
if (!count) {
|
printf("%s", nodes ? "[]" : "NULL");
|
return;
|
}
|
if (count <= offset) {
|
printf("%p", nodes);
|
return;
|
}
|
printf("[");
|
unsigned long i;
|
for (i = 0; i < count; ++i) {
|
if (i)
|
printf(", ");
|
if (i + offset < count) {
|
if (i >= MAX_STRLEN) {
|
printf("...");
|
break;
|
}
|
} else {
|
printf("... /* %p */", nodes + i);
|
break;
|
}
|
printf("%d", nodes[i]);
|
}
|
printf("]");
|
}
|
|
static void
|
print_status_array(const int *const status, const unsigned long count)
|
{
|
if (!count) {
|
printf("%s", status ? "[]" : "NULL");
|
return;
|
}
|
printf("[");
|
unsigned long i;
|
for (i = 0; i < count; ++i) {
|
if (i)
|
printf(", ");
|
if (i >= MAX_STRLEN) {
|
printf("...");
|
break;
|
}
|
if (status[i] >= 0) {
|
printf("%d", status[i]);
|
} else {
|
errno = -status[i];
|
printf("-%s", errno2name());
|
}
|
}
|
printf("]");
|
}
|
|
static void
|
print_stat_pages(const unsigned long pid, const unsigned long count,
|
const void **const pages, int *const status)
|
{
|
const unsigned long flags = (unsigned long) 0xfacefeed00000002ULL;
|
|
long rc = syscall(__NR_move_pages,
|
pid, count, pages, NULL, status, flags);
|
const char *errstr = sprintrc(rc);
|
printf("move_pages(%d, %lu, ", (int) pid, count);
|
print_page_array(pages, count, 0);
|
printf(", NULL, ");
|
if (rc) {
|
if (count)
|
printf("%p", status);
|
else
|
printf("[]");
|
} else {
|
print_status_array(status, count);
|
}
|
printf(", MPOL_MF_MOVE) = %s\n", errstr);
|
}
|
|
static void
|
print_move_pages(const unsigned long pid,
|
unsigned long count,
|
const unsigned int offset,
|
const void **const pages,
|
int *const nodes,
|
int *const status)
|
{
|
const unsigned long flags = (unsigned long) 0xfacefeed00000004ULL;
|
count += offset;
|
|
long rc = syscall(__NR_move_pages,
|
pid, count, pages, nodes, status, flags);
|
const char *errstr = sprintrc(rc);
|
printf("move_pages(%d, %lu, ", (int) pid, count);
|
print_page_array(pages, count, offset);
|
printf(", ");
|
print_node_array(nodes, count, offset);
|
printf(", ");
|
if (count)
|
printf("%p", status);
|
else
|
printf("[]");
|
printf(", MPOL_MF_MOVE_ALL) = %s\n", errstr);
|
}
|
|
int
|
main(void)
|
{
|
const unsigned long pid =
|
(unsigned long) 0xfacefeed00000000ULL | getpid();
|
unsigned long count = 1;
|
const unsigned page_size = get_page_size();
|
const void *const page = tail_alloc(page_size);
|
const void *const efault = page + page_size;
|
TAIL_ALLOC_OBJECT_VAR_PTR(const void *, pages);
|
TAIL_ALLOC_OBJECT_VAR_PTR(int, nodes);
|
TAIL_ALLOC_OBJECT_VAR_PTR(int, status);
|
|
print_stat_pages(pid, 0, pages, status);
|
print_move_pages(pid, 0, 0, pages, nodes, status);
|
print_move_pages(pid, 0, 1, pages + 1, nodes + 1, status + 1);
|
|
*pages = page;
|
print_stat_pages(pid, count, pages, status);
|
*nodes = 0xdeadbee1;
|
print_move_pages(pid, count, 0, pages, nodes, status);
|
print_move_pages(pid, count, 1, pages, nodes, status);
|
|
++count;
|
--status;
|
*(--pages) = efault;
|
print_stat_pages(pid, count, pages, status);
|
*(--nodes) = 0xdeadbee2;
|
print_move_pages(pid, count, 0, pages, nodes, status);
|
print_move_pages(pid, count, 1, pages, nodes, status);
|
|
++count;
|
--status;
|
*(--pages) = nodes;
|
print_stat_pages(pid, count, pages, status);
|
*(--nodes) = 0xdeadbee3;
|
print_move_pages(pid, count, 0, pages, nodes, status);
|
print_move_pages(pid, count, 1, pages, nodes, status);
|
|
++count;
|
--status;
|
*(--pages) = status;
|
print_stat_pages(pid, count, pages, status);
|
*(--nodes) = 0xdeadbee4;
|
print_move_pages(pid, count, 0, pages, nodes, status);
|
print_move_pages(pid, count, 1, pages, nodes, status);
|
|
puts("+++ exited with 0 +++");
|
return 0;
|
}
|
|
#else
|
|
SKIP_MAIN_UNDEFINED("__NR_move_pages")
|
|
#endif
|
