10-16-2009
function trace back and address to line number conversion
Hi,
I am new to AIX and I am developing a small tool for our product which helps debug memory leaks etc.
Q1)Is there a way in which i can get a function trace back as to the call (lets say malloc() )has been made in which file--> in which function.
I tried using the
#pragma options ( i might be making a mistake in the sub options for tbtable would need guidance here too)
and
-qtbtable=full
which says that a full stack trace would be appended as a text file at the end of the object file that we create if we create the obj file using the -g option.
But I dont seem to see any stack trace at the end of the obj file.
Can someone tell me what possibly could be my mistake? or suggest a better way of getting a stack trace
now using __builtin_return_address() i can get the code address from where the fucntion call ( malloc() ) has been made.
Q2)Is there any function which will help me find the line number of the function call ( malloc() ).
On HP UX we have addr2line() function which does this thing... on AIX i dont have an idea which function does it.
Thank you very much in advance.
Regards
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LEARN ABOUT CENTOS
trace-cmd-start
TRACE-CMD-START(1) TRACE-CMD-START(1)
NAME
trace-cmd-start - start the Ftrace Linux kernel tracer without recording
SYNOPSIS
trace-cmd start [OPTIONS]
DESCRIPTION
The trace-cmd(1) start enables all the Ftrace tracing the same way trace-cmd-record(1) does. The difference is that it does not run threads
to create a trace.dat file. This is useful just to enable Ftrace and you are only interested in the trace after some event has occurred and
the trace is stopped. Then the trace can be read straight from the Ftrace pseudo file system or can be extracted with trace-cmd-extract(1).
OPTIONS
The options are the same as trace-cmd-record(1), except that it does not take options specific to recording (-s, -o, -F, -N, and -t).
SEE ALSO
trace-cmd(1), trace-cmd-record(1), trace-cmd-report(1), trace-cmd-stop(1), trace-cmd-extract(1), trace-cmd-reset(1), trace-cmd-split(1),
trace-cmd-list(1), trace-cmd-listen(1)
AUTHOR
Written by Steven Rostedt, <rostedt@goodmis.org[1]>
RESOURCES
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git
COPYING
Copyright (C) 2010 Red Hat, Inc. Free use of this software is granted under the terms of the GNU Public License (GPL).
NOTES
1. rostedt@goodmis.org
mailto:rostedt@goodmis.org
06/11/2014 TRACE-CMD-START(1)