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<body class='hmmessage'><div dir='ltr'>hi all,<div><br></div><div>I compile the nginx-1.4.7 with FLAG <span style="font-size: 12pt;">-finstrument-functions</span><span style="font-size: 12pt;"> , and start nginx like this:</span></div><div><span style="font-size: 12pt;"><br></span></div><div>
<p class="p1"><span class="s1">LD_PRELOAD=liblttng-ust-cyg-profile-fast.so ./nginx</span></p><p class="p1"><span class="s1"><br></span></p><p class="p1"><span class="s1">Then I use the command </span><span style="font-size: 12pt;">lttng list --userspace and got nothing like this:</span></p><p class="p1"><br></p><p class="p1"><span class="s1">UST events:</span></p><p class="p1"><span class="s1">-------------</span></p><p class="p1">
</p><p class="p1"><span class="s1">None</span></p><p class="p1"><span class="s1"><br></span></p><p class="p1"><span class="s1"><br class="Apple-interchange-newline">I don't understand why I can't get the func_exit/entry events from nginx.</span></p><p class="p1"><span style="font-size: 12pt;"><br></span></p><p class="p1"><span style="font-size: 12pt;">By the way, I test function tracing with a single c source file and works well, output like this:</span></p><p class="p1"><span class="s1"><br></span></p><p class="p1"><span class="s1">UST events:</span></p><p class="p1"><span class="s1">-------------</span></p><p class="p2"><span class="s1"></span><br></p><p class="p1"><span class="s1">PID: 4687 - Name: ./tt</span></p><p class="p1"><span class="s1"> lttng_ust_cyg_profile:func_exit (loglevel: TRACE_DEBUG_FUNCTION (12)) (type: tracepoint)</span></p><p class="p1"><span class="s1"> lttng_ust_cyg_profile:func_entry (loglevel: TRACE_DEBUG_FUNCTION (12)) (type: tracepoint)</span></p><p class="p1"><span class="s1"> lttng_ust_tracef:event (loglevel: TRACE_DEBUG (14)) (type: tracepoint)</span></p><p class="p1"><span class="s1">
</span></p><p class="p1"><span class="s1"> ust_baddr_statedump:soinfo (loglevel: TRACE_DEBUG_LINE (13)) (type: tracepoint)</span></p><p class="p1"><span class="s1"><br></span></p><p class="p1"><span class="s1"><br></span></p><p class="p1">Wishing for help.</p>
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