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tests/process_mrelease.c
59 строк
1 KB
Eugene Syromyatnikov
Decode process_mrelease syscall
11 окт 2021, 15:39
11 окт 2021, 15:39
48550c2
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/* * Check decoding of process_mrelease syscall. * * Copyright (c) 2021 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> #ifndef SKIP_IF_PROC_IS_UNAVAILABLE # define SKIP_IF_PROC_IS_UNAVAILABLE #endif #ifndef FD0_STR # define FD0_STR "" #endif static const char *errstr; static long sys_process_mrelease(int pidfd, unsigned int flags) { static const kernel_ulong_t fill = (kernel_ulong_t) 0xbadc0ded00000000ULL; kernel_ulong_t arg1 = fill | (unsigned int) pidfd; kernel_ulong_t arg2 = fill | flags; kernel_ulong_t arg3 = fill | 0xdeedefed; kernel_ulong_t arg4 = fill | 0xdebeefed; kernel_ulong_t arg5 = fill | 0xdecaffed; kernel_ulong_t arg6 = fill | 0xdeefaced; long rc = syscall(__NR_process_mrelease, arg1, arg2, arg3, arg4, arg5, arg6); errstr = sprintrc(rc); return rc; } int main(void) { SKIP_IF_PROC_IS_UNAVAILABLE; sys_process_mrelease(-1, 0); printf("process_mrelease(-1, 0) = %s\n", errstr); sys_process_mrelease(0, 0xfacefeed); printf("process_mrelease(0" FD0_STR ", 0xfacefeed) = %s\n", errstr); puts("+++ exited with 0 +++"); return 0; }