[GSOC 2014][JSON] stacktrace in JSON format

[yangmin zhu]

Hi, Yamato

On Wed, Jun 4, 2014 at 11:19 AM, Masatake YAMATO <yamato at redhat.com> wrote:
> Hi, YangMin
>
> I have not read the thread about your work, JSON format because I
> have concentrated on unwind(stacktrace) patch. (The patch is finally
> merge into the master tree!)
>
> Will your work conver the output of stacktrace?
>

I'm now working on the relatively stable parts of strace, for example
I'm modifying those functions in io.c which didn't change rapidly.
I'm not sure whether I have enough time to cover the output of
stackstrace before the pencil down time of GSOC 2014,
But I would like to continue my work to cover the output of stacktrace
after GSOC 2014.


> If yes, please, read the rest of this mail.
>
> In the future I'd like to add source file name, source file line and
> more to the tuple. So I'm happy if the JSON format is extensible. If
> it it difficult, it is good to add the version number of format to the
> format itself.
>

As you can see, I used a hook framework to output in JSON format, and
Of course, I want make it easy-to-use and extensible.
I'm now modifying the existing output functions (such as sys_read() in
io.c) to use my hook framework.
I must mentioned that the hook framework is changing rapidly now, it's
not stable and I'm also modifying the
hook framework depending on the experience I got when I modifying
functions such as sys_read().


Thank you!
---
YangMin