[deliverable/linux.git] / tools / lib / lockdep / common.c

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