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67 lines
2.4 KiB
C
67 lines
2.4 KiB
C
/* The clone3 kernel interface definitions.
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Copyright (C) 2021-2025 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library. If not, see
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<https://www.gnu.org/licenses/>. */
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#ifndef _CLONE3_H
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#define _CLONE3_H 1
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#include <features.h>
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#include <stddef.h>
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#include <bits/types.h>
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/* Flags for the clone3 syscall. */
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#define CLONE_CLEAR_SIGHAND 0x100000000ULL /* Clear any signal handler and
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reset to SIG_DFL. */
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#define CLONE_INTO_CGROUP 0x200000000ULL /* Clone into a specific cgroup given
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the right permissions. */
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/* The unsigned 64-bit and 8-byte aligned integer type. */
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typedef __U64_TYPE __aligned_uint64_t __attribute__ ((__aligned__ (8)));
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/* This struct should only be used in an argument to the clone3 system
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call (along with its size argument). It may be extended with new
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fields in the future. */
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struct clone_args
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{
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/* Flags bit mask. */
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__aligned_uint64_t flags;
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/* Where to store PID file descriptor (pid_t *). */
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__aligned_uint64_t pidfd;
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/* Where to store child TID, in child's memory (pid_t *). */
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__aligned_uint64_t child_tid;
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/* Where to store child TID, in parent's memory (int *). */
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__aligned_uint64_t parent_tid;
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/* Signal to deliver to parent on child termination */
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__aligned_uint64_t exit_signal;
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/* The lowest address of stack. */
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__aligned_uint64_t stack;
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/* Size of stack. */
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__aligned_uint64_t stack_size;
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/* Location of new TLS. */
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__aligned_uint64_t tls;
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/* Pointer to a pid_t array (since Linux 5.5). */
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__aligned_uint64_t set_tid;
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/* Number of elements in set_tid (since Linux 5.5). */
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__aligned_uint64_t set_tid_size;
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/* File descriptor for target cgroup of child (since Linux 5.7). */
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__aligned_uint64_t cgroup;
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};
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#endif /* clone3.h */
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