[tracecompass-dev] Reading MIPS traces

[Gerlando Falauto <gerlando.falauto@xxxxxxxxxxx>]

Hi,

I'm trying to use the Linux Tools Trace Viewer (i.e. Trace Compass 
outside of Eclipse, if I understand it correctly) to read some traces 
created by LTTNG on a MIPS (big endian) architecture.

However, upon clicking on the trace file in order to show it, I get this 
message:
Exception in thread "Thread-35" java.lang.NullPointerException
	at 
org.eclipse.linuxtools.tmf.ctf.core.CtfTraceManager.getIterator(CtfIteratorManager.java:169)
	at 
org.eclipse.linuxtools.tmf.ctf.core.CtfIteratorManager.getIterator(CtfIteratorManager.java:74)
	at 
org.eclipse.linuxtools.tmf.ctf.core.CtfTmfContext.getIterator(CtfTmfContext.java:200)
	at 
org.eclipse.linuxtools.tmf.ctf.core.CtfTmfContext.setLocation(CtfTmfContext.java:83)
	at 
org.eclipse.linuxtools.tmf.ctf.core.CtfTmfTrace.seekEvent(CtfTmfTrace.java:267)
	at 
org.eclipse.linuxtools.tmf.core.trace.TmfTrace.seekEvent(TmfTrace.java:543)
	at 
org.eclipse.linuxtools.tmf.ctf.core.CtfTmfTrace.initTrace(CtfTmfTrace.java:121)
	at 
org.eclipse.linuxtools.tmf.core.trace.TmfTrace.initTrace(TmfTrace.java:207)
	at 
org.eclipse.linuxtools.tmf.ui.project.model.TmfOpenTraceHelper.openTraceElement(TmfOpenTraceHelper.java:257)
	at 
org.eclipse.linuxtools.tmf.ui.project.model.TmfOpenTraceHelper.openProjectElement(TmfOpenTraceHelper.java:309)
	at 
org.eclipse.linuxtools.tmf.ui.project.model.TmfOpenTraceHelper.access$0(TmfOpenTraceHelper.java:306)
	at 
org.eclipse.linuxtools.tmf.ui.project.model.TmfOpenTraceHelper$1.run(TmfOpenTraceHelper.java:360)


The same test run on an ARM (little endian) platform seems to work fine 
though. As I remember there've been endianness issues in the past, and I 
assume most tests are run on x86 platform (hence little endian), could 
it be possible that we're hitting the same issue again?

Please find attached a test case where I could get the above error.

If it makes any difference, the daily build I used is 
linuxtools-trace-viewer-1.1.0-20141203-0203-linux.gtk.x86_64.tar.gz.

Could anyone please help me with this issue?

Thank you!
Gerlando

Attachment: mips-trace.tar.gz
Description: GNU Zip compressed data