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/*
* Check decoding of mbind syscall.
*
* Copyright (c) 2016-2019 Dmitry V. Levin <ldv@altlinux.org>
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include "scno.h"
#ifdef __NR_mbind
# include <stdio.h>
# include <unistd.h>
static const char *errstr;
static long
k_mbind(const unsigned long start,
const unsigned long len,
const unsigned long mode,
const unsigned long nmask,
const unsigned long maxnode,
const unsigned int flags)
{
const kernel_ulong_t fill = (kernel_ulong_t) 0xdefaced00000000ULL;
const kernel_ulong_t arg1 = start;
const kernel_ulong_t arg2 = len;
const kernel_ulong_t arg3 = mode;
const kernel_ulong_t arg4 = nmask;
const kernel_ulong_t arg5 = maxnode;
const kernel_ulong_t arg6 = fill | flags;
const long rc = syscall(__NR_mbind, arg1, arg2, arg3, arg4, arg5, arg6);
errstr = sprintrc(rc);
return rc;
}
# if XLAT_RAW
# define out_str raw
# define flags_str "0xffffffff"
# elif XLAT_VERBOSE
# define out_str verbose
# define flags_str "0xffffffff /* MPOL_MF_STRICT|MPOL_MF_MOVE" \
"|MPOL_MF_MOVE_ALL|0xfffffff8 */"
# else
# define out_str abbrev
# define flags_str "MPOL_MF_STRICT|MPOL_MF_MOVE|MPOL_MF_MOVE_ALL|0xfffffff8"
# endif
static struct {
unsigned long val;
const char *raw;
const char *verbose;
const char *abbrev;
} mpol_modes[] = {
{ ARG_STR(0),
"0 /* MPOL_DEFAULT */",
"MPOL_DEFAULT" },
{ ARG_STR(0x1),
"0x1 /* MPOL_PREFERRED */",
"MPOL_PREFERRED" },
{ ARG_STR(0x2),
"0x2 /* MPOL_BIND */",
"MPOL_BIND" },
{ ARG_STR(0x3),
"0x3 /* MPOL_INTERLEAVE */",
"MPOL_INTERLEAVE" },
{ ARG_STR(0x4),
"0x4 /* MPOL_LOCAL */",
"MPOL_LOCAL" },
{ ARG_STR(0x8000),
"0x8000 /* MPOL_DEFAULT|MPOL_F_STATIC_NODES */",
"MPOL_DEFAULT|MPOL_F_STATIC_NODES" },
{ ARG_STR(0x4001),
"0x4001 /* MPOL_PREFERRED|MPOL_F_RELATIVE_NODES */",
"MPOL_PREFERRED|MPOL_F_RELATIVE_NODES" },
{ ARG_STR(0xc002),
"0xc002 /* MPOL_BIND|MPOL_F_STATIC_NODES|MPOL_F_RELATIVE_NODES */",
"MPOL_BIND|MPOL_F_STATIC_NODES|MPOL_F_RELATIVE_NODES" },
{ ARG_STR(0x5),
"0x5 /* MPOL_??? */",
"0x5 /* MPOL_??? */" },
{ ARG_STR(0xffff3fff),
"0xffff3fff /* MPOL_??? */",
"0xffff3fff /* MPOL_??? */" },
{ ARG_STR(0xffffffff),
"0xffffffff /* MPOL_F_STATIC_NODES|MPOL_F_RELATIVE_NODES|0xffff3fff */",
"MPOL_F_STATIC_NODES|MPOL_F_RELATIVE_NODES|0xffff3fff" },
# if SIZEOF_LONG > 4
{ 0xffffffff00000000UL,
"0xffffffff00000000",
"0xffffffff00000000 /* MPOL_??? */",
"0xffffffff00000000 /* MPOL_??? */" },
{ 0xffffffffffff3fffUL,
"0xffffffffffff3fff",
"0xffffffffffff3fff /* MPOL_??? */",
"0xffffffffffff3fff /* MPOL_??? */" },
{ -1UL,
"0xffffffffffffffff",
"0xffffffffffffffff /* MPOL_F_STATIC_NODES|MPOL_F_RELATIVE_NODES"
"|0xffffffffffff3fff */",
"MPOL_F_STATIC_NODES|MPOL_F_RELATIVE_NODES|0xffffffffffff3fff" },
# endif
};
int
main(void)
{
const unsigned long size = get_page_size();
unsigned long *const addr = tail_alloc(size);
const unsigned long start = (unsigned long) 0xfffffff1fffffff2ULL;
const unsigned long len = (unsigned long) 0xfffffff4fffffff4ULL;
const unsigned long nodemask = (unsigned long) 0xfffffff5fffffff6ULL;
const unsigned long maxnode = (unsigned long) 0xfffffff7fffffff8ULL;
if (k_mbind((unsigned long) addr, size, mpol_modes[0].val, 0, 0, 0))
perror_msg_and_skip("mbind");
printf("mbind(%p, %lu, %s, NULL, 0, 0) = 0\n",
addr, size, mpol_modes[0].out_str);
for (unsigned int i = 0; i < ARRAY_SIZE(mpol_modes); ++i) {
if (i) {
k_mbind((unsigned long) addr, size, mpol_modes[i].val,
0, 0, 0);
printf("mbind(%p, %lu, %s, NULL, 0, 0) = %s\n",
addr, size, mpol_modes[i].out_str, errstr);
}
k_mbind(start, len, mpol_modes[i].val,
nodemask, maxnode, -1U);
printf("mbind(%#lx, %lu, %s, %#lx, %lu, %s) = %s\n",
start, len, mpol_modes[i].out_str,
nodemask, maxnode, flags_str, errstr);
}
puts("+++ exited with 0 +++");
return 0;
}
#else
SKIP_MAIN_UNDEFINED("__NR_mbind")
#endif
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