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OpenSolaris 2009.06 - man page for tnfxtract (opensolaris section 1)

tnfxtract(1)				  User Commands 			     tnfxtract(1)

NAME
       tnfxtract - extract kernel probes output into a trace file

SYNOPSIS
       tnfxtract [-d dumpfile -n namelist] tnf_file

DESCRIPTION
       The  tnfxtract  utility collects kernel trace output from an in-core buffer in the Solaris
       kernel, or from the memory image of a crashed system, and generates  a  binary  TNF  trace
       file like those produced directly by user programs being traced.

       Either  both  or  neither of the -d and -n options must be specified. If neither is speci-
       fied, trace output is extracted from the running kernel. If both  are  specified,  the  -d
       argument  names the file containing the (crashed) system memory image, and the -n argument
       names the file containing the symbol table for the system memory image.

       The TNF trace file tnf_file produced is exactly the same size as the in-core buffer; it is
       essentially  a snapshot of that buffer.	It is legal to run tnfxtract while kernel tracing
       is active, i.e., while the in-core buffer is being written.  tnfxtract  insures	that  the
       output  file  it  generates  is	low-level consistent, that is, that only whole probes are
       written out, and that internal data structures in the buffer are not corrupted because the
       buffer is being concurrently written.

       The  TNF  trace	file generated is suitable as input to tnfdump(1), which will generate an
       ASCII file.

OPTIONS
       The following options are supported:

       -d dumpfile    Uses dumpfile as the system memory image, instead of  the  running  kernel.
		      The  dumpfile is normally the path name of a file generated by the savecore
		      utility.

       -n namelist    Uses namelist as the file containing the symbol table information  for  the
		      given dumpfile.

OPERANDS
       The following operand is supported:

       tnf_file    Output  file  generated  by tnfxtract based on kernel trace output from an in-
		   core buffer in the Solaris kernel.

EXAMPLES
       Example 1 Extracting probes from a running kernel

       Extract probes from the running kernel into ktrace.out:

	 example% tnfxtract ktrace.out

       Example 2 Extracting probes from a kernel crash dump

       Extract probes from a kernel crash dump into ktrace.out:

	 example% tnfxtract -d /var/crash/`uname -n`/vmcore.0 \
	    -n /var/crash/`uname -n`/unix.0 ktrace.out

EXIT STATUS
       The following exit values are returned:

       0     Successful completion.

       >0    An error occurred.

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWtnfc			   |
       +-----------------------------+-----------------------------+

SEE ALSO
       prex(1), tnfdump(1), savecore(1M), tnf_kernel_probes(4), attributes(5)

SunOS 5.11				   19 Aug 2003				     tnfxtract(1)


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