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-rw-r--r--arch/x86/kernel/dumpstack.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/x86/kernel/dumpstack.h b/arch/x86/kernel/dumpstack.h
index 4fd1420faff..e39e77168a3 100644
--- a/arch/x86/kernel/dumpstack.h
+++ b/arch/x86/kernel/dumpstack.h
@@ -29,4 +29,24 @@ struct stack_frame {
struct stack_frame *next_frame;
unsigned long return_address;
};
+
+struct stack_frame_ia32 {
+ u32 next_frame;
+ u32 return_address;
+};
+
+static inline unsigned long rewind_frame_pointer(int n)
+{
+ struct stack_frame *frame;
+
+ get_bp(frame);
+
+#ifdef CONFIG_FRAME_POINTER
+ while (n--)
+ frame = frame->next_frame;
#endif
+
+ return (unsigned long)frame;
+}
+
+#endif /* DUMPSTACK_H */