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POAndroid Systrace tool internally uses strace or ftrace?
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2013-04-08T12:06:39.233
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Systrace Android tool calls internally a tool called atrace which is and extension of ftrace or strace (Linux tools). If we connect via the emulator console (ADB shell) to Android Jelly Bean we can execute strace tool but we can not execute ftrace tool (command not installed). Doing some reseach over the Internet I found that strace is a predecessor of ftrace: <a href="http://crtags.blogspot.de/2012/04/dtrace-ftrace-ltrace-strace-so-many-to.html" rel="noreferrer">http://crtags.blogspot.de/2012/04/dtrace-ftrace-ltrace-strace-so-many-to.html</a> Looking to Android Source Code, the most "internal" reference that I found is Trace.h file: <a href="http://androidxref.com/4.1.1/xref/frameworks/native/include/utils/Trace.h" rel="noreferrer">http://androidxref.com/4.1.1/xref/frameworks/native/include/utils/Trace.h</a> I think that this file is then resolved to a native Linux driver. However, I'm still unable to know if this implementation driver belongs to strace or ftrace. "Normally", it should be ftrace because it is newer, but in that case I don't know why we can not run ftrace from the emulator. In contrast, strace is completely available from the emulator. Then, does someone knows if Systrace Android tool uses at a very low level strace or ftrace? Thank you!
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<android><linux><trace><systrace>
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Android Systrace tool internally uses strace or ftrace?
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