Re: [Valgrind-users] Valgrind and JNI java

[Alex V. <ava...@gm...>]

Hi John!
I update the code (github): https://github.com/avazquezdev/TestValgrindJava

>
>Please state the version of valgrind ("valgrind --version"),
>and the hardware architecture, and the operating system and version.

valgrind-3.10.1
Kubuntu 15.04 (64bits)

>
>Please tell us how many (within a few percent), and post (copy+paste)
>two complete example complaints.
>

I created two files with the outputs whether or no memory leak.
https://github.com/avazquezdev/TestValgrindJava/tree/master/ErrorInfo

>
>Please give an example, and explain why not.  Do your routines have names?
>Do those names appear in the complaints from memcheck?

When I allocate memory valgrind show the next:
https://github.com/avazquezdev/TestValgrindJava/blob/master/ErrorInfo/Example1.txt
In this text I see nothing to indicate that my library allocates/free
memory.



2015-10-10 16:03 GMT+02:00 John Reiser <jr...@bi...>:

>  > I want to use valgrind to detect memory leaks for a library in Java
> native interface.
>  > For this I made a sample program by pressing a key reserve memory and
> another
>  > pressing the release and one for exiting the program.
>  >
>  > I have 2 problems:
>  > * If I activate the options to detect memory leaks I see too many
> failures.
>
> Please tell us how many (within a few percent), and post (copy+paste)
> two complete example complaints.
>
>  > * I can not detect which are memory leaks in my library.
>
> Please give an example, and explain why not.  Do your routines have names?
> Do those names appear in the complaints from memcheck?
>
>  >
>  > Option for valgrind:
>  > valgrind --smc-check=all --trace-children=yes --show-leak-kinds=all
> --track-origins=yes -v --leak-check=yes java -Djava.library.path=. App
>
> Please state the version of valgrind ("valgrind --version"),
> and the hardware architecture, and the operating system and version.
>
>  >
>  > Is there any way to filter leaks only my library?
>
> If you can determine which are in your library, then encode that knowledge
> into a filter (using python, perl, sed, awk, ...).  However, in general a
> leak
> results from a misunderstanding about some interface or software contract.
> Usually there are at least two pieces of software involved in creating a
> leak:
> the allocator and the non-free()r.  The leak "belongs" to the combination
> of all of the pieces.
>
>  > Do the choices I am using to search for leaks is right for Java native
> code?
>
> We cannot say until you post verbatim examples of the output that you get.
>
>
>
>
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