[mirror_ubuntu-eoan-kernel.git] / include / linux / stackleak.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_STACKLEAK_H
#define _LINUX_STACKLEAK_H

#include <linux/sched.h>
#include <linux/sched/task_stack.h>

/*
 * Check that the poison value points to the unused hole in the
 * virtual memory map for your platform.
 */
#define STACKLEAK_POISON -0xBEEF
#define STACKLEAK_SEARCH_DEPTH 128

#ifdef CONFIG_GCC_PLUGIN_STACKLEAK
#include <asm/stacktrace.h>

static inline void stackleak_task_init(struct task_struct *t)
{
	t->lowest_stack = (unsigned long)end_of_stack(t) + sizeof(unsigned long);
}
#else /* !CONFIG_GCC_PLUGIN_STACKLEAK */
static inline void stackleak_task_init(struct task_struct *t) { }
#endif

#endif
Commit	Line	Data
afaef01c AP	1	/* SPDX-License-Identifier: GPL-2.0 */
	2	#ifndef _LINUX_STACKLEAK_H
	3	#define _LINUX_STACKLEAK_H
	4
	5	#include <linux/sched.h>
	6	#include <linux/sched/task_stack.h>
	7
	8	/*
	9	* Check that the poison value points to the unused hole in the
	10	* virtual memory map for your platform.
	11	*/
	12	#define STACKLEAK_POISON -0xBEEF
	13	#define STACKLEAK_SEARCH_DEPTH 128
	14
	15	#ifdef CONFIG_GCC_PLUGIN_STACKLEAK
	16	#include <asm/stacktrace.h>
	17
	18	static inline void stackleak_task_init(struct task_struct *t)
	19	{
	20	t->lowest_stack = (unsigned long)end_of_stack(t) + sizeof(unsigned long);
	21	}
	22	#else /* !CONFIG_GCC_PLUGIN_STACKLEAK */
	23	static inline void stackleak_task_init(struct task_struct *t) { }
	24	#endif
	25
	26	#endif