| Null pointer exception parsing remote addr2line output [message #1740551] |
Mon, 15 August 2016 15:53 |
 David Wootton
Messages: 18
Registered: July 2009 |
Junior Member |
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I'm trying to run the Eclipse NEON version of the Linuxtools gmon reader remotely, where the back end system is an IBM Power 8 little endian system running Red Hat Linux 7.2 and my Eclipse is running on Windows 7.
When I'm trying to read the gmon.out file, I get a null pointer exception with the following traceback fragment
java.lang.NullPointerException
at java.util.regex.Matcher.getTextLength(Matcher.java:1294)
at java.util.regex.Matcher.reset(Matcher.java:320)
at java.util.regex.Matcher.<init>(Matcher.java:240)
at java.util.regex.Pattern.matcher(Pattern.java:1104)
at org.eclipse.cdt.utils.Addr2line.parserOutput(Addr2line.java:147)
at org.eclipse.cdt.utils.Addr2line.getLineNumber(Addr2line.java:119)
at org.eclipse.linuxtools.binutils.utils.STSymbolManager.getLineNumber(STSymbolManager.java:220)
Trying to debug this, the line number passed to Addr2line.getLineNumber is valid. The path to the executable and the remote connection object passed to the RemoteAddr2line constructor are valid, the params are an empty string and the project is null.
It looks like the addr2line command that gets invoked is 'addr2line -C -f -e a.out'
If I run this command manually on the Linux system and provide the same address, adrr2line works.
In the case of the exception, it appears that the code that reads the remote response to addr2line is returning null.
Any idea what's going wrong?
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