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From: Yubin Ruan <ablacktshirt-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: Florian Weimer <fweimer-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: "Michael Kerrisk (man-pages)"
	<mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	linux-man <linux-man-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	vivek-ZGY8ohtN/8qB+jHODAdFcQ@public.gmane.org
Subject: Re: dl_iterate_phdr(3) needs clarification
Date: Mon, 9 Oct 2017 17:13:27 +0800	[thread overview]
Message-ID: <20171009091325.GB5758@HP> (raw)
In-Reply-To: <45f4e59c-3be5-6edd-12a8-f158002dafc7-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>

Hi Florian,
sorry for the late reply. This mail got hidden in some secret mailbox and I
didn't discover it. sorry ;-(

On Sat, Sep 16, 2017 at 10:38:44AM +0200, Florian Weimer wrote:
> On 09/16/2017 05:28 PM, Yubin Ruan wrote:
> 
> > > The part about executables is not true.  The most common case probably is
> > > PIE executables.  You see this if you compile the modified test program with
> > > -fpie -pie on a recent enough toolchain.
> > 
> > -fpie only affect address of PT_LOAD. The one inidcated by `dlpi_addr' is
> > always 0 for an executable. Yes there is indeed some confusion, see [1].
> 
> I get this with your patched example:
> 
> Address: 0x156927e000, name: "" (9 segments)

Indeed, this still needs to be investigated some more. I will come back for
this late. Do you have any idea about the wording? I would like to hear your
understanding.

Yubin
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  parent reply	other threads:[~2017-10-09  9:13 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20170915084423.GB317@HP.internal.baidu.com>
     [not found] ` <20170915084423.GB317-BUpDV9vzqx74NUO8LpiZZi+1pv2Z1Xu3@public.gmane.org>
2017-09-15  8:33   ` dl_iterate_phdr(3) needs clarification Michael Kerrisk (man-pages)
     [not found]     ` <CAKgNAkhRo04hCoYX+SCKEr7Ai0zT9HcV_z-aZhCio+CQqO+eHw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-09-16 12:37       ` Yubin Ruan
     [not found]         ` <20170916123659.GB13267-BUpDV9vzqx74NUO8LpiZZi+1pv2Z1Xu3@public.gmane.org>
2017-09-16 12:39           ` Yubin Ruan
2017-09-16 15:00       ` Yubin Ruan
     [not found]         ` <20170916150053.GD13267-BUpDV9vzqx74NUO8LpiZZi+1pv2Z1Xu3@public.gmane.org>
2017-09-16  8:15           ` Florian Weimer
     [not found]             ` <480b07c2-b897-b175-036a-e304b2bba2d1-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2017-09-16 15:28               ` Yubin Ruan
     [not found]                 ` <20170916152842.GG13267-BUpDV9vzqx74NUO8LpiZZi+1pv2Z1Xu3@public.gmane.org>
2017-09-16  8:38                   ` Florian Weimer
     [not found]                     ` <45f4e59c-3be5-6edd-12a8-f158002dafc7-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2017-10-09  9:13                       ` Yubin Ruan [this message]
2017-09-16 15:09           ` Yubin Ruan
     [not found]             ` <20170916150900.GE13267-BUpDV9vzqx74NUO8LpiZZi+1pv2Z1Xu3@public.gmane.org>
2017-09-16 15:23               ` Yubin Ruan

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