Dmitry V. Levin
c6782f144a
strace test suite is now provided under the terms of the GNU General Public License version 2 or later, see tests/COPYING for more details.
119 lines
3.5 KiB
C
119 lines
3.5 KiB
C
/*
|
|
* Check decoding of remap_file_pages syscall.
|
|
*
|
|
* Copyright (c) 2016-2017 Dmitry V. Levin <ldv@altlinux.org>
|
|
* Copyright (c) 2016-2018 The strace developers.
|
|
* All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0-or-later
|
|
*/
|
|
|
|
#include "tests.h"
|
|
#include <asm/unistd.h>
|
|
#include "scno.h"
|
|
|
|
#ifdef __NR_remap_file_pages
|
|
|
|
# include <stdio.h>
|
|
# include <stdint.h>
|
|
# include <unistd.h>
|
|
# include <linux/mman.h>
|
|
|
|
static const char *errstr;
|
|
|
|
static long
|
|
k_remap_file_pages(const kernel_ulong_t addr,
|
|
const kernel_ulong_t size,
|
|
const kernel_ulong_t prot,
|
|
const kernel_ulong_t pgoff,
|
|
const kernel_ulong_t flags)
|
|
{
|
|
const long rc = syscall(__NR_remap_file_pages,
|
|
addr, size, prot, pgoff, flags);
|
|
errstr = sprintrc(rc);
|
|
return rc;
|
|
}
|
|
|
|
int
|
|
main(void)
|
|
{
|
|
kernel_ulong_t addr = (kernel_ulong_t) 0xfacefeeddeadbeefULL;
|
|
kernel_ulong_t size = (kernel_ulong_t) 0xdefaced1bad2f00dULL;
|
|
kernel_ulong_t prot = PROT_READ|PROT_WRITE|PROT_EXEC;
|
|
kernel_ulong_t pgoff = (kernel_ulong_t) 0xcaf3babebad4deedULL;
|
|
kernel_ulong_t flags = MAP_PRIVATE|MAP_ANONYMOUS;
|
|
# define prot1_str "PROT_READ|PROT_WRITE|PROT_EXEC"
|
|
# define flags1_str "MAP_PRIVATE|MAP_ANONYMOUS"
|
|
|
|
k_remap_file_pages(addr, size, prot, pgoff, flags);
|
|
# if XLAT_RAW
|
|
printf("remap_file_pages(%#jx, %ju, %#jx, %ju, %#jx) = %s\n",
|
|
(uintmax_t) addr, (uintmax_t) size, (uintmax_t) prot,
|
|
(uintmax_t) pgoff, (uintmax_t) flags, errstr);
|
|
# elif XLAT_VERBOSE
|
|
printf("remap_file_pages(%#jx, %ju, %#jx /* %s */, %ju, %#jx /* %s */)"
|
|
" = %s\n",
|
|
(uintmax_t) addr, (uintmax_t) size, (uintmax_t) prot, prot1_str,
|
|
(uintmax_t) pgoff, (uintmax_t) flags,
|
|
flags1_str, errstr);
|
|
# else /* XLAT_ABBREV */
|
|
printf("remap_file_pages(%#jx, %ju, %s, %ju, %s) = %s\n",
|
|
(uintmax_t) addr, (uintmax_t) size, prot1_str,
|
|
(uintmax_t) pgoff, flags1_str, errstr);
|
|
# endif
|
|
|
|
#ifdef MAP_HUGETLB
|
|
# ifndef MAP_HUGE_2MB
|
|
# ifndef MAP_HUGE_SHIFT
|
|
# define MAP_HUGE_SHIFT 26
|
|
# endif
|
|
# define MAP_HUGE_2MB (21 << MAP_HUGE_SHIFT)
|
|
# endif /* !MAP_HUGE_2MB */
|
|
addr = (kernel_ulong_t) 0xfacefeeddeadf00dULL;
|
|
size = (kernel_ulong_t) 0xdefaced1bad2beefULL;
|
|
prot = (kernel_ulong_t) 0xdefaced00000000ULL | PROT_NONE;
|
|
flags = MAP_TYPE | MAP_FIXED | MAP_NORESERVE | MAP_HUGETLB | MAP_HUGE_2MB;
|
|
|
|
k_remap_file_pages(addr, size, prot, pgoff, flags);
|
|
|
|
/*
|
|
* HP PA-RISC is the only architecture that has MAP_TYPE defined to 0x3, which
|
|
* is also used for MAP_SHARED_VALIDATE since Linux commit v4.15-rc1~71^2^2~23.
|
|
*/
|
|
# ifdef __hppa__
|
|
# define MAP_TYPE_str "MAP_SHARED_VALIDATE"
|
|
# else
|
|
# define MAP_TYPE_str "0xf /* MAP_??? */"
|
|
# endif
|
|
# define flags2_str \
|
|
MAP_TYPE_str "|MAP_FIXED|MAP_NORESERVE|MAP_HUGETLB|21<<MAP_HUGE_SHIFT"
|
|
|
|
# if XLAT_RAW
|
|
printf("remap_file_pages(%#jx, %ju, %#jx, %ju, %#jx) = %s\n",
|
|
(uintmax_t) addr, (uintmax_t) size, (uintmax_t) prot,
|
|
(uintmax_t) pgoff, (uintmax_t) flags, errstr);
|
|
# elif XLAT_VERBOSE
|
|
printf("remap_file_pages(%#jx, %ju, %#jx /* %s */, %ju, %#jx /* %s */)"
|
|
" = %s\n",
|
|
(uintmax_t) addr, (uintmax_t) size, (uintmax_t) prot,
|
|
prot == PROT_NONE ? "PROT_NONE" : "PROT_???",
|
|
(uintmax_t) pgoff, (uintmax_t) flags, flags2_str, errstr);
|
|
# else /* XLAT_ABBREV */
|
|
printf("remap_file_pages(%#jx, %ju, %s, %ju, %s) = %s\n",
|
|
(uintmax_t) addr, (uintmax_t) size,
|
|
prot == PROT_NONE ? "PROT_NONE" :
|
|
"0xdefaced00000000 /* PROT_??? */",
|
|
(uintmax_t) pgoff, flags2_str, errstr);
|
|
# endif
|
|
#endif /* MAP_HUGETLB */
|
|
|
|
puts("+++ exited with 0 +++");
|
|
return 0;
|
|
}
|
|
|
|
#else
|
|
|
|
SKIP_MAIN_UNDEFINED("__NR_remap_file_pages")
|
|
|
|
#endif
|