ba240cd10e
The export of save_stack_trace_tsk() was previously backported to msm-4.9, without a backported flag to detect support. Define a new backport flag, so kernel modules can use this function when it is exported. Change-Id: Iec65e6f9fed0a9bf686f5e5c8ba4f59691eb1ee0 CRs-Fixed: 2105458 Signed-off-by: Dustin Brown <dustinb@codeaurora.org>
43 lines
1.2 KiB
C
43 lines
1.2 KiB
C
#ifndef __LINUX_STACKTRACE_H
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#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
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struct stack_trace {
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unsigned int nr_entries, max_entries;
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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,
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struct stack_trace *trace);
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extern void save_stack_trace_tsk(struct task_struct *tsk,
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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,
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struct stack_trace *trace, int spaces);
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#define BACKPORTED_EXPORT_SAVE_STACK_TRACE_TSK_ARM
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#ifdef CONFIG_USER_STACKTRACE_SUPPORT
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extern void save_stack_trace_user(struct stack_trace *trace);
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#else
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# define save_stack_trace_user(trace) do { } while (0)
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#endif
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#else
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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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#endif
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#endif
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