testsuite/systemtap.context/backtrace.stp


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function print_all_trace_info() {
	printf("backtrace from %s:\n", pp())
        print_backtrace()
        print("--------\n")
	bt = backtrace()
	printf("the stack is %s\n", bt)
        print("--------\n")
	print_stack(bt);
        print("--------\n")
}

probe begin {
	print_backtrace()
}

probe end {
	print_backtrace()
}

probe module("systemtap_test_module2").function("yyy_func3") {
	print_all_trace_info()
}