From: Bernd Petrovitsch <bernd@petrovitsch.priv.at>
To: Cong Wang <xiyou.wangcong@gmail.com>
Cc: Xin Tong <xerox.time.tech@gmail.com>,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: Running Application Inside Application
Date: Mon, 21 Nov 2011 12:05:51 +0100 [thread overview]
Message-ID: <1321873552.22548.63.camel@thorin> (raw)
In-Reply-To: <CAM_iQpXPTheJU_+GKHkDu2b0WrV_4oJJbM+pWY3uprh6fX7cSw@mail.gmail.com>
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@gmail.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
It is in general so - not only für 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@petrovitsch.priv.at
LUGA : http://www.luga.at
next prev parent reply other threads:[~2011-11-21 11:05 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-21 2:18 Xin Tong
2011-11-21 3:25 ` Cong Wang
2011-11-21 11:05 ` Bernd Petrovitsch [this message]
[not found] ` <CAOtvUMeHu_88Tye6CMaHpRwYY_vuz=9hE48DsJz0ARhMHYju-w@mail.gmail.com>
[not found] ` <CALKntY1i+NHE6HuDMME+WuAVmWG=tHuV=RsK9B3VnpVgcSJiRg@mail.gmail.com>
2011-11-21 14:28 ` Gilad Ben-Yossef
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