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gerrit-public.fairphone.software / kernel / msm-4.19 / b76e3f933327f9fd9df9a65a2d239e6e350cbee2 / . / include / linux / stacktrace.h
blob: 4205f71a5f0e99e9900ec47de977aed8f6453aaf [file] [log] [blame]
Ingo Molnar8637c092006-07-03 00:24:38 -0700[diff] [blame]1#ifndef __LINUX_STACKTRACE_H
2#define __LINUX_STACKTRACE_H
3
Joonsoo Kim9a92a6c2014-12-12 16:55:58 -0800[diff] [blame]4#include <linux/types.h>
5
Andrew Morton897312b2008-10-03 15:23:41 -0700[diff] [blame]6struct task_struct;
Soeren Sandmann Pedersen9c0729d2010-11-05 05:59:39 -0400[diff] [blame]7struct pt_regs;
Andrew Morton897312b2008-10-03 15:23:41 -0700[diff] [blame]8
Ingo Molnar8637c092006-07-03 00:24:38 -0700[diff] [blame]9#ifdef CONFIG_STACKTRACE
10struct stack_trace {
11 unsigned int nr_entries, max_entries;
12 unsigned long *entries;
Andi Kleen5a1b3992006-09-26 10:52:34 +0200[diff] [blame]13 int skip; /* input argument: How many entries to skip */
Ingo Molnar8637c092006-07-03 00:24:38 -0700[diff] [blame]14};
15
Christoph Hellwigab1b6f02007-05-08 00:23:29 -0700[diff] [blame]16extern void save_stack_trace(struct stack_trace *trace);
Masami Hiramatsu39581062011-06-08 16:09:21 +0900[diff] [blame]17extern void save_stack_trace_regs(struct pt_regs *regs,
18 struct stack_trace *trace);
Arjan van de Ven97455122008-01-25 21:08:34 +0100[diff] [blame]19extern void save_stack_trace_tsk(struct task_struct *tsk,
20 struct stack_trace *trace);
Josh Poimboeufaf085d92017-02-13 19:42:28 -0600[diff] [blame]21extern int save_stack_trace_tsk_reliable(struct task_struct *tsk,
22 struct stack_trace *trace);
Ingo Molnar8637c092006-07-03 00:24:38 -0700[diff] [blame]23
24extern void print_stack_trace(struct stack_trace *trace, int spaces);
Joonsoo Kim9a92a6c2014-12-12 16:55:58 -0800[diff] [blame]25extern int snprint_stack_trace(char *buf, size_t size,
26 struct stack_trace *trace, int spaces);
Török Edwin02b67512008-11-22 13:28:47 +0200[diff] [blame]27
Török Edwin8d264872008-11-23 12:39:08 +0200[diff] [blame]28#ifdef CONFIG_USER_STACKTRACE_SUPPORT
Török Edwin02b67512008-11-22 13:28:47 +0200[diff] [blame]29extern void save_stack_trace_user(struct stack_trace *trace);
30#else
31# define save_stack_trace_user(trace) do { } while (0)
32#endif
33
Josh Poimboeufaf085d92017-02-13 19:42:28 -0600[diff] [blame]34#else /* !CONFIG_STACKTRACE */
Christoph Hellwigab1b6f02007-05-08 00:23:29 -0700[diff] [blame]35# define save_stack_trace(trace) do { } while (0)
Arjan van de Ven97455122008-01-25 21:08:34 +0100[diff] [blame]36# define save_stack_trace_tsk(tsk, trace) do { } while (0)
Török Edwin8d7c6a92008-11-23 12:39:06 +0200[diff] [blame]37# define save_stack_trace_user(trace) do { } while (0)
Johannes Berg3b5ad072007-07-19 01:49:02 -0700[diff] [blame]38# define print_stack_trace(trace, spaces) do { } while (0)
Joonsoo Kim9a92a6c2014-12-12 16:55:58 -0800[diff] [blame]39# define snprint_stack_trace(buf, size, trace, spaces) do { } while (0)
Josh Poimboeufaf085d92017-02-13 19:42:28 -0600[diff] [blame]40# define save_stack_trace_tsk_reliable(tsk, trace) ({ -ENOSYS; })
41#endif /* CONFIG_STACKTRACE */
Ingo Molnar8637c092006-07-03 00:24:38 -0700[diff] [blame]42
Josh Poimboeufaf085d92017-02-13 19:42:28 -0600[diff] [blame]43#endif /* __LINUX_STACKTRACE_H */