linux-kernel - [PATCH 5.4 v2 0/6] Fix Build ID on arm64 if CONFIG

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Date:   Fri, 10 Feb 2023 13:20:21 -0700
From:   Tom Saeger <tom.saeger@...cle.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Sasha Levin <sashal@...nel.org>,
        Naresh Kamboju <naresh.kamboju@...aro.org>,
        John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>,
        Rich Felker <dalias@...c.org>,
        Masahiro Yamada <masahiroy@...nel.org>,
        Ard Biesheuvel <ardb@...nel.org>,
        Nathan Chancellor <nathan@...nel.org>,
        Dennis Gilmore <dennis@...il.us>,
        Palmer Dabbelt <palmer@...osinc.com>,
        Arnd Bergmann <arnd@...db.de>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Tom Saeger <tom.saeger@...cle.com>, stable@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-riscv@...ts.infradead.org, linuxppc-dev@...ts.ozlabs.org,
        linux-s390@...r.kernel.org, linux-sh@...r.kernel.org,
        "H.J. Lu" <hjl.tools@...il.com>, Borislav Petkov <bp@...e.de>,
        Kees Cook <keescook@...omium.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Heiko Carstens <hca@...ux.ibm.com>,
        Christoph Hellwig <hch@....de>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>
Subject: [PATCH 5.4 v2 0/6] Fix Build ID on arm64 if CONFIG_MODVERSIONS=y

Build ID is missing for arm64 with CONFIG_MODVERSIONS=y using ld >= 2.36
on 5.4, 5.10, and 5.15

Backport BuildID fixes.

I've build tested this on {x86_64, arm64, riscv, powerpc, s390, sh}.

  # view Build ID
  $ readelf -n vmlinux | grep "Build ID"

Changes for v2:
- rebase 6/6 c1c551bebf92 ("sh: define RUNTIME_DISCARD_EXIT") from upstream

Previous threads:
[1] https://lore.kernel.org/all/cover.1674588616.git.tom.saeger@oracle.com/
[2] https://lore.kernel.org/all/3df32572ec7016e783d37e185f88495831671f5d.1671143628.git.tom.saeger@oracle.com/
[3] https://lore.kernel.org/all/cover.1670358255.git.tom.saeger@oracle.com/

Signed-off-by: Tom Saeger <tom.saeger@...cle.com>
---
H.J. Lu (1):
      x86, vmlinux.lds: Add RUNTIME_DISCARD_EXIT to generic DISCARDS

Masahiro Yamada (2):
      arch: fix broken BuildID for arm64 and riscv
      s390: define RUNTIME_DISCARD_EXIT to fix link error with GNU ld < 2.36

Michael Ellerman (2):
      powerpc/vmlinux.lds: Define RUNTIME_DISCARD_EXIT
      powerpc/vmlinux.lds: Don't discard .rela* for relocatable builds

Tom Saeger (1):
      sh: define RUNTIME_DISCARD_EXIT

 arch/powerpc/kernel/vmlinux.lds.S |  6 +++++-
 arch/s390/kernel/vmlinux.lds.S    |  2 ++
 arch/sh/kernel/vmlinux.lds.S      |  1 +
 arch/x86/kernel/vmlinux.lds.S     |  1 +
 include/asm-generic/vmlinux.lds.h | 16 ++++++++++++++--
 5 files changed, 23 insertions(+), 3 deletions(-)
---
base-commit: 59342376e8f0c704299dc7a2c14fed07ffb962e2
change-id: 20230210-tsaeger-upstream-linux-stable-5-4-07f93e88c218

Best regards,
-- 
Tom Saeger <tom.saeger@...cle.com>