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tests/set_mempolicy_home_node.c
58 строк
1 KB
Eugene Syromyatnikov
Decode set_mempolicy_home_node syscall
24 мар 2022, 19:19
24 мар 2022, 19:19
e7f3878
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/* * Check decoding of set_mempolicy_home_node syscall. * * Copyright (c) 2022 Eugene Syromyatnikov <evgsyr@gmail.com> * All rights reserved. * * SPDX-License-Identifier: GPL-2.0-or-later */ #include "tests.h" #include "scno.h" #include <inttypes.h> #include <stdio.h> #include <stdint.h> #include <unistd.h> static const char *errstr; static long sys_set_mempolicy_home_node(kernel_ulong_t start, kernel_ulong_t len, kernel_ulong_t home_node, kernel_ulong_t flags) { static const kernel_ulong_t fill = (kernel_ulong_t) 0xbadc0ded00000000ULL; kernel_ulong_t arg1 = start; kernel_ulong_t arg2 = len; kernel_ulong_t arg3 = home_node; kernel_ulong_t arg4 = flags; kernel_ulong_t arg5 = fill | 0xdecaffed; kernel_ulong_t arg6 = fill | 0xdeefaced; long rc = syscall(__NR_set_mempolicy_home_node, arg1, arg2, arg3, arg4, arg5, arg6); errstr = sprintrc(rc); return rc; } #define KUL_1 ((unsigned long long) (kernel_ulong_t) -1ULL) int main(void) { void *dummy; sys_set_mempolicy_home_node(0, 0, 0, 0); printf("set_mempolicy_home_node(NULL, 0, 0, 0) = %s\n", errstr); sys_set_mempolicy_home_node((uintptr_t) &dummy, 1, 2, 3); printf("set_mempolicy_home_node(%p, 1, 2, 0x3) = %s\n", &dummy, errstr); sys_set_mempolicy_home_node(-1, -2, -3, -4); printf("set_mempolicy_home_node(%#llx, %llu, %llu, %#llx) = %s\n", KUL_1, KUL_1 - 1, KUL_1 - 2, KUL_1 - 3, errstr); puts("+++ exited with 0 +++"); return 0; }