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35 lines
902 B
35 lines
902 B
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef _LINUX_STACKLEAK_H |
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#define _LINUX_STACKLEAK_H |
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#include <linux/sched.h> |
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#include <linux/sched/task_stack.h> |
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/* |
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* Check that the poison value points to the unused hole in the |
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* virtual memory map for your platform. |
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*/ |
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#define STACKLEAK_POISON -0xBEEF |
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#define STACKLEAK_SEARCH_DEPTH 128 |
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#ifdef CONFIG_GCC_PLUGIN_STACKLEAK |
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#include <asm/stacktrace.h> |
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static inline void stackleak_task_init(struct task_struct *t) |
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{ |
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t->lowest_stack = (unsigned long)end_of_stack(t) + sizeof(unsigned long); |
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# ifdef CONFIG_STACKLEAK_METRICS |
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t->prev_lowest_stack = t->lowest_stack; |
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# endif |
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} |
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#ifdef CONFIG_STACKLEAK_RUNTIME_DISABLE |
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int stack_erasing_sysctl(struct ctl_table *table, int write, |
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void *buffer, size_t *lenp, loff_t *ppos); |
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#endif |
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#else /* !CONFIG_GCC_PLUGIN_STACKLEAK */ |
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static inline void stackleak_task_init(struct task_struct *t) { } |
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#endif |
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#endif
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