From: "H.J. Lu" <hjl.tools@gmail.com>
To: Florian Weimer <fweimer@redhat.com>
Cc: Siddhesh Poyarekar <siddhesh@sourceware.org>,
"Carlos O'Donell" <carlos@redhat.com>,
GNU C Library <libc-alpha@sourceware.org>
Subject: Re: [PATCH] ld.so: Handle read-only dynamic section gracefully [BZ #28340]
Date: Thu, 16 Sep 2021 15:14:06 -0700 [thread overview]
Message-ID: <CAMe9rOpQHzBXZr6Ee1yQjPMWrFznHZYqznwxZZH0pBHsAxTKzw@mail.gmail.com> (raw)
In-Reply-To: <874kakjt2p.fsf@oldenburg.str.redhat.com>
On Thu, Sep 16, 2021 at 11:04 AM Florian Weimer <fweimer@redhat.com> wrote:
>
> * H. J. Lu:
>
> > No. Relocation of vDSO dynamic section is done by elf_get_dynamic_info.
> > Here is a patch to remove the hack for vDSO.
>
> I have concerns that this does not actually work on MIPS. What happens
> if the object has a single RWX LOAD segment? What kind of flags will
> the link editor set on the DYNAMIC segment in this case? RWX or R, RX?
> I suspect it will be RWX, which means that we actually need the special
> case.
>
My patch should handle it in ld.so properly. Non-glibc consumers of
PT_DYNAMIC segment need to handle it differently for these non-ABI
conforming binaries.
--
H.J.
next prev parent reply other threads:[~2021-09-16 22:14 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-14 19:09 Siddhesh Poyarekar
2021-09-14 19:15 ` Florian Weimer
2021-09-15 1:14 ` Siddhesh Poyarekar
2021-09-15 14:35 ` H.J. Lu
2021-09-15 15:42 ` Siddhesh Poyarekar
2021-09-15 16:13 ` H.J. Lu
2021-09-15 16:24 ` Siddhesh Poyarekar
2021-09-15 16:34 ` H.J. Lu
2021-09-16 1:43 ` Siddhesh Poyarekar
2021-09-16 2:23 ` H.J. Lu
2021-09-16 3:46 ` Siddhesh Poyarekar
2021-09-16 4:26 ` H.J. Lu
2021-09-16 4:28 ` Siddhesh Poyarekar
2021-09-16 4:30 ` H.J. Lu
2021-09-16 4:48 ` Florian Weimer
2021-09-16 5:36 ` Siddhesh Poyarekar
2021-09-16 5:46 ` Florian Weimer
2021-09-16 6:04 ` Siddhesh Poyarekar
2021-09-16 14:11 ` Carlos O'Donell
2021-09-16 15:18 ` H.J. Lu
2021-09-16 16:45 ` Siddhesh Poyarekar
2021-09-16 17:38 ` H.J. Lu
2021-09-16 17:58 ` Siddhesh Poyarekar
2021-09-16 22:11 ` H.J. Lu
2021-09-17 2:47 ` Siddhesh Poyarekar
2021-09-17 2:59 ` H.J. Lu
2021-09-17 3:36 ` Siddhesh Poyarekar
2021-09-17 3:42 ` H.J. Lu
2021-09-17 3:44 ` Siddhesh Poyarekar
2021-09-17 3:44 ` Florian Weimer
2021-09-17 3:51 ` Siddhesh Poyarekar
2021-09-16 18:03 ` Florian Weimer
2021-09-16 22:14 ` H.J. Lu [this message]
2021-09-17 2:58 ` Siddhesh Poyarekar
2021-09-17 3:46 ` Florian Weimer
2021-09-17 4:00 ` Florian Weimer
2021-09-17 4:12 ` [PATCH] ld.so: Remove DL_RO_DYN_SECTION H.J. Lu
2021-09-17 6:54 ` David Abdurachmanov
2021-09-17 9:01 ` Siddhesh Poyarekar
2021-09-17 15:40 ` H.J. Lu
2021-10-14 12:36 ` [PATCH] ld.so: Handle read-only dynamic section gracefully [BZ #28340] Maciej W. Rozycki
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