[mirror_ubuntu-kernels.git] / tools / lib / lockdep / common.c

// SPDX-License-Identifier: GPL-2.0
#include <stddef.h>
#include <stdbool.h>
#include <linux/compiler.h>
#include <linux/lockdep.h>
#include <unistd.h>
#include <sys/syscall.h>

static __thread struct task_struct current_obj;

/* lockdep wants these */
bool debug_locks = true;
bool debug_locks_silent;

__attribute__((destructor)) static void liblockdep_exit(void)
{
	debug_check_no_locks_held();
}

struct task_struct *__curr(void)
{
	if (current_obj.pid == 0) {
		/* Makes lockdep output pretty */
		prctl(PR_GET_NAME, current_obj.comm);
		current_obj.pid = syscall(__NR_gettid);
	}

	return &current_obj;
}
Commit	Line	Data
b2441318	1	// SPDX-License-Identifier: GPL-2.0
5634bd7d SL	2	#include <stddef.h>
	3	#include <stdbool.h>
	4	#include <linux/compiler.h>
	5	#include <linux/lockdep.h>
	6	#include <unistd.h>
	7	#include <sys/syscall.h>
	8
	9	static __thread struct task_struct current_obj;
	10
	11	/* lockdep wants these */
	12	bool debug_locks = true;
	13	bool debug_locks_silent;
	14
5634bd7d SL	15	__attribute__((destructor)) static void liblockdep_exit(void)
5634bd7d SL	16	{
1393ba5c	17	debug_check_no_locks_held();
5634bd7d SL	18	}
	19
	20	struct task_struct *__curr(void)
	21	{
	22	if (current_obj.pid == 0) {
	23	/* Makes lockdep output pretty */
	24	prctl(PR_GET_NAME, current_obj.comm);
	25	current_obj.pid = syscall(__NR_gettid);
	26	}
	27
	28	return &current_obj;
	29	}