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From: Fangrui Song <i@maskray.me>
To: binutils@sourceware.org
Subject: Re: [PATCH] Support SHF_GNU_RETAIN ELF section flag
Date: Tue, 22 Sep 2020 18:09:30 -0700	[thread overview]
Message-ID: <20200923010930.xtc4mgmxsoesohkn@gmail.com> (raw)
In-Reply-To: <20200922202933.kgflmtnwzkdrmrvs@jozef-acer-manjaro>

On 2020-09-22, Jozef Lawrynowicz wrote:
>The attached patch adds support for the new SHF_GNU_RETAIN ELF section
>flag, which was discussed on the GNU gABI mailing list here:
>https://sourceware.org/pipermail/gnu-gabi/2020q3/000429.html
>
>The flag is GNU-specific so uses a bit in the SHF_MASKOS mask.
>Its precise definition is as follows:

We already have a way to create an artificial reference:

   .reloc ., R_X86_64_NONE, target_symbol

If we allow a relocation number for the second operand

   .reloc ., 0, target_symbol

this will be generic. You can insert the directives in a GC root (e.g.
_start or a symbol referenced by -u or maybe an .init_array)

  parent reply	other threads:[~2020-09-23  1:09 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-22 20:29 Jozef Lawrynowicz
2020-09-22 23:24 ` Hans-Peter Nilsson
2020-09-22 23:58 ` H.J. Lu
2020-09-23  1:09 ` Fangrui Song [this message]
2020-09-23  9:58   ` Jozef Lawrynowicz
2020-09-23 13:39     ` H.J. Lu
2020-09-23 13:51       ` Michael Matz
2020-09-23 16:52         ` Jozef Lawrynowicz
2020-09-23 17:13           ` H.J. Lu
2020-09-23 18:47             ` Jozef Lawrynowicz
2020-09-23 19:03               ` H.J. Lu
2020-09-23 20:04                 ` Jozef Lawrynowicz
2020-09-23 20:17                   ` H.J. Lu
2020-09-23 23:29                     ` Fangrui Song
2020-09-24 11:39                       ` Jozef Lawrynowicz
2020-09-24 19:06                         ` Fangrui Song
2020-09-24 13:27                       ` Michael Matz
2020-09-24 13:18                     ` H.J. Lu
2020-09-24 13:49                       ` Jozef Lawrynowicz
2020-09-24 13:59                         ` H.J. Lu
2020-09-24 16:56                           ` Jozef Lawrynowicz
2020-09-24 17:04                             ` H.J. Lu
2020-09-24 17:18                               ` Jozef Lawrynowicz
2020-09-24 17:37                                 ` H.J. Lu
2020-09-23 12:13 ` Jozef Lawrynowicz
2020-09-23 13:59   ` Alan Modra
2020-09-23 16:54     ` Jozef Lawrynowicz
2020-09-28 11:35 ` Pedro Alves
2020-09-28 12:28   ` Jozef Lawrynowicz
2020-09-28 14:46     ` Pedro Alves
2020-09-29 13:18       ` Michael Matz
2020-09-29 13:22         ` Jozef Lawrynowicz
2020-09-29 13:48         ` Pedro Alves
2020-09-29 13:55           ` Michael Matz
2020-09-29 14:04             ` Pedro Alves
2020-09-29 14:10               ` Michael Matz
2020-09-29 14:11                 ` Pedro Alves

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