Add stack walking function for 2.6.33

* runtime/stack.c (walk_context_stack): New function.
  (print_stack_ops): Add function pointer.

1 files changed, 14 insertions, 0 deletions

diff --git a/runtime/stack.c b/runtime/stack.c
index 612fa010..7dfeb76a 100644
--- a/runtime/stack.c
+++ b/runtime/stack.c
@@ -94,11 +94,25 @@ static void print_stack_address(void *data, unsigned long addr, int reliable)
                 _stp_func_print(addr, sdata->verbose, 0, NULL);
 }
 
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,32)
+static unsigned long
+walk_context_stack(struct thread_info *tinfo,
+                   unsigned long *stack, unsigned long bp,
+                   const struct stacktrace_ops *ops, void *data,
+                   unsigned long *end, int *graph)
+{
+	return 0 ;
+}
+#endif
+
 static const struct stacktrace_ops print_stack_ops = {
 	.warning = print_stack_warning,
 	.warning_symbol = print_stack_warning_symbol,
 	.stack = print_stack_stack,
 	.address = print_stack_address,
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,32)
+	.walk_stack = walk_context_stack,
+#endif
 };
 
 static void _stp_stack_print_fallback(unsigned long stack, int verbose, int levels)