From: Xi Ruoyao <xry111@xry111.site>
To: Ard Biesheuvel <ardb@kernel.org>
Cc: 陈华才 <chenhuacai@loongson.cn>,
linux-efi@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
"James E.J. Bottomley" <James.Bottomley@hansenpartnership.com>,
"Matthew Garrett" <mjg59@srcf.ucam.org>,
"Peter Jones" <pjones@redhat.com>,
"Ilias Apalodimas" <ilias.apalodimas@linaro.org>,
"Heinrich Schuchardt" <heinrich.schuchardt@canonical.com>,
"AKASHI Takahiro" <takahiro.akashi@linaro.org>,
"Palmer Dabbelt" <palmer@dabbelt.com>,
"Atish Patra" <atishp@atishpatra.org>,
"Arnd Bergmann" <arnd@arndb.de>,
"Lennart Poettering" <lennart@poettering.net>,
"Jeremy Linton" <jeremy.linton@arm.com>
Subject: Re: [PATCH v4 8/9] loongarch: avoid orphan input sections
Date: Sun, 28 Aug 2022 17:44:24 +0800 [thread overview]
Message-ID: <00a60dc58fe182782fdc8ef834323414232104fb.camel@xry111.site> (raw)
In-Reply-To: <CAMj1kXGHLans85vpGzY6FbdW0w5DZ0uqT7eEk2yava=udUHY1w@mail.gmail.com>
On Sun, 2022-08-28 at 11:36 +0200, Ard Biesheuvel wrote:
> But does the ELF psABI for LoongArch describe L_ARCH_NONE as a dynamic
> relocation? .rela.dyn typically only contains relocations that are
> specified as being suitable for runtime relocation.
In Binutils 2.39 the BFD linker often over-estimate the size of .rela.*.
For example if there is only 42 relocations, it may allocate the space
for 47 relocations and fill the unused space in the section with zero.
Then 5 R_LARCH_NONE will appear.
This has already caused trouble when we reviewed LoongArch glibc port,
but at last the reviewers considered using NONE relocations as a
"padding" acceptable. So in glibc ld.so will treat R_LARCH_NONE as a
"dynamic" relocation with no real effect.
The issue (or "bug", if we want a more serious term) seems fixed in
Binutils trunk, but I've not rebuilt the entire system with it so I'm
not sure if it's completely fixed.
--
Xi Ruoyao <xry111@xry111.site>
School of Aerospace Science and Technology, Xidian University
next prev parent reply other threads:[~2022-08-28 9:44 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-27 8:38 [PATCH v4 0/9] efi: implement generic compressed boot support Ard Biesheuvel
2022-08-27 8:38 ` [PATCH v4 1/9] efi: name the ARCH-stub.c files uniformly Ard Biesheuvel
2022-08-27 8:38 ` [PATCH v4 2/9] efi/libstub: add some missing EFI prototypes Ard Biesheuvel
2022-08-27 8:38 ` [PATCH v4 3/9] efi/libstub: use EFI provided memcpy/memset routines Ard Biesheuvel
2022-08-27 8:38 ` [PATCH v4 4/9] efi/libstub: move efi_system_table global var into separate object Ard Biesheuvel
2022-08-27 8:38 ` [PATCH v4 5/9] efi/libstub: implement generic EFI zboot Ard Biesheuvel
2022-08-27 8:38 ` [PATCH v4 6/9] arm64: efi: enable generic EFI compressed boot Ard Biesheuvel
2022-08-31 22:05 ` Jeremy Linton
2022-09-01 0:48 ` Xi Ruoyao
2022-08-27 8:38 ` [PATCH v4 7/9] riscv: " Ard Biesheuvel
2022-08-27 8:38 ` [PATCH v4 8/9] loongarch: avoid orphan input sections Ard Biesheuvel
2022-08-27 10:15 ` 陈华才
2022-08-27 13:27 ` Ard Biesheuvel
2022-08-28 3:31 ` Xi Ruoyao
2022-08-28 9:36 ` Ard Biesheuvel
2022-08-28 9:44 ` Xi Ruoyao [this message]
2022-08-29 3:59 ` 陈华才
2022-08-27 8:38 ` [PATCH v4 9/9] loongarch: efi: enable generic EFI compressed boot Ard Biesheuvel
2022-08-28 9:52 ` Xi Ruoyao
2022-08-28 10:57 ` Xi Ruoyao
2022-08-29 8:13 ` 陈华才
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=00a60dc58fe182782fdc8ef834323414232104fb.camel@xry111.site \
--to=xry111@xry111.site \
--cc=James.Bottomley@hansenpartnership.com \
--cc=ardb@kernel.org \
--cc=arnd@arndb.de \
--cc=atishp@atishpatra.org \
--cc=chenhuacai@loongson.cn \
--cc=heinrich.schuchardt@canonical.com \
--cc=ilias.apalodimas@linaro.org \
--cc=jeremy.linton@arm.com \
--cc=lennart@poettering.net \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-efi@vger.kernel.org \
--cc=mjg59@srcf.ucam.org \
--cc=palmer@dabbelt.com \
--cc=pjones@redhat.com \
--cc=takahiro.akashi@linaro.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox