linux-kernel - Re: Running Application Inside Application

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Message-ID: <CAM_iQpXPTheJU_+GKHkDu2b0WrV_4oJJbM+pWY3uprh6fX7cSw@mail.gmail.com>
Date:	Mon, 21 Nov 2011 11:25:46 +0800
From:	Cong Wang <xiyou.wangcong@...il.com>
To:	Xin Tong <xerox.time.tech@...il.com>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: Running Application Inside Application

On Mon, Nov 21, 2011 at 10:18 AM, Xin Tong <xerox.time.tech@...il.com> 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
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.
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