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| 2 |
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| 3 | #ifndef _ASM_RISCV_STACKTRACE_H
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| 4 | #define _ASM_RISCV_STACKTRACE_H
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| 5 |
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| 6 | #include <linux/sched.h>
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| 7 | #include <asm/ptrace.h>
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| 8 |
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| 9 | struct stackframe {
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| 10 | unsigned long fp;
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| 11 | unsigned long ra;
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| 12 | };
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| 13 |
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| 14 | extern void notrace walk_stackframe(struct task_struct *task, struct pt_regs *regs,
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| 15 | bool (*fn)(void *, unsigned long), void *arg);
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| 16 | extern void dump_backtrace(struct pt_regs *regs, struct task_struct *task,
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| 17 | const char *loglvl);
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| 18 |
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| 19 | static inline bool on_thread_stack(void)
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| 20 | {
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| 21 | return !(((unsigned long)(current->stack) ^ current_stack_pointer) & ~(THREAD_SIZE - 1));
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| 22 | }
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| 23 |
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| 24 |
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| 25 | #ifdef CONFIG_VMAP_STACK
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| 26 | DECLARE_PER_CPU(unsigned long [OVERFLOW_STACK_SIZE/sizeof(long)], overflow_stack);
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| 27 | #endif
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| 28 |
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| 29 | #endif
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