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include/linux/stacktrace.h
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/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef __LINUX_STACKTRACE_H #define __LINUX_STACKTRACE_H |
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#include <linux/types.h> |
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struct task_struct; |
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struct pt_regs; |
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#ifdef CONFIG_STACKTRACE struct stack_trace { unsigned int nr_entries, max_entries; unsigned long *entries; |
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int skip; /* input argument: How many entries to skip */ |
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}; |
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extern void save_stack_trace(struct stack_trace *trace); |
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extern void save_stack_trace_regs(struct pt_regs *regs, struct stack_trace *trace); |
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extern void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace); |
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extern int save_stack_trace_tsk_reliable(struct task_struct *tsk, struct stack_trace *trace); |
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extern void print_stack_trace(struct stack_trace *trace, int spaces); |
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extern int snprint_stack_trace(char *buf, size_t size, struct stack_trace *trace, int spaces); |
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#ifdef CONFIG_USER_STACKTRACE_SUPPORT |
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extern void save_stack_trace_user(struct stack_trace *trace); #else # define save_stack_trace_user(trace) do { } while (0) #endif |
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#else /* !CONFIG_STACKTRACE */ |
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# define save_stack_trace(trace) do { } while (0) |
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# define save_stack_trace_tsk(tsk, trace) do { } while (0) |
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# define save_stack_trace_user(trace) do { } while (0) |
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# define print_stack_trace(trace, spaces) do { } while (0) |
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# define snprint_stack_trace(buf, size, trace, spaces) do { } while (0) |
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# define save_stack_trace_tsk_reliable(tsk, trace) ({ -ENOSYS; }) #endif /* CONFIG_STACKTRACE */ |
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#endif /* __LINUX_STACKTRACE_H */ |