31 lines
747 B
C
31 lines
747 B
C
/* 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);
|
|
# ifdef CONFIG_STACKLEAK_METRICS
|
|
t->prev_lowest_stack = t->lowest_stack;
|
|
# endif
|
|
}
|
|
|
|
#else /* !CONFIG_GCC_PLUGIN_STACKLEAK */
|
|
static inline void stackleak_task_init(struct task_struct *t) { }
|
|
#endif
|
|
|
|
#endif
|