anv_trace

RT-Thread 程序追踪软件包，帮助定位程序运行位置。

int anv_trace_example(int argc, char const *argv[])
{
    anv_trace_init(stdout);

    anv_trace_enter();
    anv_traced("Hello %s!", "Debug");
    anv_tracei("Hello %s!", "Info");
    anv_tracew("Hello %s!", "Warning");
    anv_tracee("Hello %s!", "Error");
    anv_tracef("Hello %s!", "Fatal");
    anv_trace_leave();

    anv_trace_quit();

  return 0;
}

可以知道程序什么时候进入了哪个函数，有没有顺利退出。

msh />
 \ | /
- RT -     Thread Operating System
 / | \     4.0.3 build Feb 11 2021
 2006 - 2021 Copyright by rt-thread team
msh />anv
anv_trace_example
msh />anv_trace_example
== [MESSAGE] [                 FILENAME: LINE | FUNCTION            ] Begin Trace (1970/01/01 - 00:00:00)

-- [Debug  ] [packages\anv-trace\anv_trace_example.c:   11 | anv_trace_example   ] << entering "anv_trace_example"
-- [Debug  ] [packages\anv-trace\anv_trace_example.c:   12 | anv_trace_example   ] Hello Debug!
-- [Info   ] [packages\anv-trace\anv_trace_example.c:   13 | anv_trace_example   ] Hello Info!
-- [Warning] [packages\anv-trace\anv_trace_example.c:   14 | anv_trace_example   ] Hello Warning!
-- [Error  ] [packages\anv-trace\anv_trace_example.c:   15 | anv_trace_example   ] Hello Error!
-- [Fatal  ] [packages\anv-trace\anv_trace_example.c:   16 | anv_trace_example   ] Hello Fatal!
-- [Debug  ] [packages\anv-trace\anv_trace_example.c:   17 | anv_trace_example   ] >> leaving  "anv_trace_example"

== [MESSAGE] [                 FILENAME: LINE | FUNCTION            ] End Trace   (1970/01/01 - 00:00:00)
msh />