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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright (c) 2016 Xiao Yang <yangx.jy@cn.fujitsu.com>
*/
#ifndef TST_CLONE_H__
#define TST_CLONE_H__
#ifdef TST_TEST_H__
/* The parts of clone3's clone_args we support */
struct tst_clone_args {
uint64_t flags;
uint64_t exit_signal;
uint64_t cgroup;
};
/* clone3 with fallbacks to clone when possible. Be aware that it
* returns -1 if clone3 fails (except ENOSYS), but -2 if clone fails.
*
* Without CLONE_VM this acts like fork so you may want to set
* tst_test.forks_child (safe_clone requires this).
*
* You should set exit_signal to SIGCHLD for
* tst_reap_children. Otherwise you must call wait with the
* appropriate parameters.
*/
pid_t tst_clone(const struct tst_clone_args *args);
pid_t safe_clone(const char *file, const int lineno,
const struct tst_clone_args *args);
/* "Safe" version of tst_clone */
#define SAFE_CLONE(args) safe_clone(__FILE__, __LINE__, args)
#endif /* TST_TEST_H__ */
/* Functions from lib/cloner.c */
int ltp_clone(unsigned long flags, int (*fn)(void *arg), void *arg,
size_t stack_size, void *stack);
int ltp_clone7(unsigned long flags, int (*fn)(void *arg), void *arg,
size_t stack_size, void *stack, ...);
int ltp_clone_alloc(unsigned long clone_flags, int (*fn)(void *arg),
void *arg, size_t stacksize);
int ltp_clone_quick(unsigned long clone_flags, int (*fn)(void *arg),
void *arg);
void *ltp_alloc_stack(size_t size);
#define clone(...) (use_the_ltp_clone_functions__do_not_use_clone)
#endif /* TST_CLONE_H__ */
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