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Commit 8594698e authored by Ingo Molnar's avatar Ingo Molnar
Browse files

stacktrace: fix modular build, export print_stack_trace and save_stack_trace 



fix:

ERROR: "print_stack_trace" [kernel/backtracetest.ko] undefined!
ERROR: "save_stack_trace" [kernel/backtracetest.ko] undefined!

Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>

and fix:

  Building modules, stage 2.
  MODPOST 376 modules
ERROR: "print_stack_trace" [kernel/backtracetest.ko] undefined!
make[1]: *** [__modpost] Error 1

Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 4e6a0535

arch/x86/kernel/stacktrace.c

+2 −0
Original line number Diff line number Diff line
@@ -74,6 +74,7 @@ void save_stack_trace(struct stack_trace *trace) 
	if (trace->nr_entries < trace->max_entries)

		trace->entries[trace->nr_entries++] = ULONG_MAX;

}

EXPORT_SYMBOL_GPL(save_stack_trace);



void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)

{
@@ -81,3 +82,4 @@ void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace) 
	if (trace->nr_entries < trace->max_entries)

		trace->entries[trace->nr_entries++] = ULONG_MAX;

}

EXPORT_SYMBOL_GPL(save_stack_trace_tsk);

kernel/stacktrace.c

+2 −0
Original line number Diff line number Diff line
@@ -6,6 +6,7 @@ 
 *  Copyright (C) 2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>

 */

#include <linux/sched.h>

#include <linux/module.h>

#include <linux/kallsyms.h>

#include <linux/stacktrace.h>
@@ -21,4 +22,5 @@ void print_stack_trace(struct stack_trace *trace, int spaces) 
		print_ip_sym(trace->entries[i]);

	}

}

EXPORT_SYMBOL_GPL(print_stack_trace);