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function trace back and address to line number conversion


 
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Operating Systems AIX function trace back and address to line number conversion
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Old 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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U_STACK_TRACE(3X)														 U_STACK_TRACE(3X)

NAME
U_STACK_TRACE(), _UNW_STACK_TRACE() - produce a trace back of the procedure call stack using the unwind library SYNOPSIS
DESCRIPTION
prints a formatted stack trace to standard error. produces a formatted stack trace on the output stream indicated by parameter out_file. The stream must be a writable stream for output to be produced. APPLICATION USAGE
and are thread-safe. They are not async-cancel-safe because they make use of which is not async-cancel-safe. A cancellation point may occur when a thread is executing RETURN VALUE
None ERRORS
can fail to give the entire stack back trace under the following conditions: o Low memory conditions. The unwind library is not able to allocate enough memory to perform the tasks of tracking back over the stack or of looking up symbols names associated with instruction pointer addresses encountered. o Executables and shared libraries that fail to conform to the Runtime Architecture for Itanium-based systems. For example, they may have invalid, incomplete, or missing unwind tables; or invalid or incorrect unwind information blocks. EXAMPLES
Given the following C program: Compiling and executing the program produces output similar to this: AUTHOR
was developed by HP. SEE ALSO
_UNW_createContextForSelf(3X), _UNW_currentContext(3X), _UNW_getGR(3X), unwind(5). Itanium(R)-based System Only U_STACK_TRACE(3X)

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