Re: Running Application Inside Application

[Bernd Petrovitsch]

On Mon, 2011-11-21 at 11:25 +0800, Cong Wang wrote:
> On Mon, Nov 21, 2011 at 10:18 AM, Xin Tong <xerox.time.tech@xxxxxxxxx> wrote:
> > I have applications that do not install signal handlers I need it to
> > install. Therefore, I am thinking about having a light-weight run-time
> > to load the application ELF file and install the needed signal handler
> > in the run-time ? Is this doable ? What if it is not ELF-encoded ?
> 
> If you want to exec*() to load the ELF, no, the signal handlers will be

It is in general so - not only fÃr ELF.

> cleared after exec*(), as the entire .text will be replaced by the new ELF file.
> 
> So, you probably have to parse and load the ELF file by yourself.

Hmmm, if these (obviously broken) applications use dynamic linking, one
could probably use a preload library.
Never tried that though .....

	Bernd
-- 
Bernd Petrovitsch                  Email : bernd@xxxxxxxxxxxxxxxxxxx
                     LUGA : http://www.luga.at

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