具有不同签名的跟踪点

Question

我想插入lttng - tracepoint("traceprovider_name"tracepoint_name“”$1“$2)语句与tracepoint_name和traceprovider_name相同，但希望在代码中使用不同的跟踪点签名：例如：

    TRACEPOINT_EVENT( 
    provider_name_test, 
    tp_name_tp, 
    TP_ARGS( 
    int, my_integer_arg, char*, my_string_arg 
    ), 
    TP_FIELDS( 
    ctf_string(my_string_field, my_string_arg) 
    ctf_integer(int, my_integer_field, my_integer_arg)

    ) 
    )

------------------------------------------------------------------------

    with the above defined traceprovider I can use: 
     tracepoint(provider_name_test, tp_name_tp,23, "hi there")

    I want tracepoint() signatures as below 

    tracepoint(provider_name_test, tp_name_tp,23  )

    tracepoint(provider_name_test, tp_name_tp,"hi there" )

Answer 1

为了保持根原因analysis.So所需的细粒度，跟踪提供者名称和跟踪点名称必须是唯一的，但您可以在多个地方使用相同的跟踪点。