53 lines
1.3 KiB
C
53 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) 2020 Linaro Limited. All rights reserved.
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* Author: Viresh Kumar <viresh.kumar@linaro.org>
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*/
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#ifndef LAPI_CLONE_H__
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#define LAPI_CLONE_H__
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#include <sys/syscall.h>
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#include <linux/types.h>
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#include <sched.h>
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#include <stdint.h>
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#include "config.h"
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#include "lapi/syscalls.h"
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#ifndef HAVE_STRUCT_CLONE_ARGS
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struct clone_args {
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uint64_t __attribute__((aligned(8))) flags;
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uint64_t __attribute__((aligned(8))) pidfd;
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uint64_t __attribute__((aligned(8))) child_tid;
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uint64_t __attribute__((aligned(8))) parent_tid;
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uint64_t __attribute__((aligned(8))) exit_signal;
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uint64_t __attribute__((aligned(8))) stack;
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uint64_t __attribute__((aligned(8))) stack_size;
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uint64_t __attribute__((aligned(8))) tls;
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};
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#endif
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#ifndef HAVE_CLONE3
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static inline int clone3(struct clone_args *args, size_t size)
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{
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return tst_syscall(__NR_clone3, args, size);
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}
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#endif
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#ifndef CLONE_PIDFD
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#define CLONE_PIDFD 0x00001000 /* set if a pidfd should be placed in parent */
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#endif
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static inline void clone3_supported_by_kernel(void)
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{
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if ((tst_kvercmp(5, 3, 0)) < 0) {
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/* Check if the syscall is backported on an older kernel */
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TEST(syscall(__NR_clone3, NULL, 0));
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if (TST_RET == -1 && TST_ERR == ENOSYS)
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tst_brk(TCONF, "Test not supported on kernel version < v5.3");
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}
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}
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#endif /* LAPI_CLONE_H__ */
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