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From: Akihiko Odaki <akihiko.odaki@daynix.com>
To: Eric Biederman <ebiederm@xmission.com>,
	Kees Cook <kees@kernel.org>,
	 Catalin Marinas <catalin.marinas@arm.com>,
	Mark Brown <broonie@kernel.org>,
	 Dave Martin <Dave.Martin@arm.com>, Baoquan He <bhe@redhat.com>,
	 Vivek Goyal <vgoyal@redhat.com>, Dave Young <dyoung@redhat.com>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	 linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org,
	 kexec@lists.infradead.org, devel@daynix.com,
	 Akihiko Odaki <akihiko.odaki@daynix.com>
Subject: [PATCH v2 0/5] elf: Define note name macros
Date: Sat, 04 Jan 2025 23:38:33 +0900	[thread overview]
Message-ID: <20250104-elf-v2-0-77dc2e06db4e@daynix.com> (raw)

elf.h had a comment saying:
> Notes used in ET_CORE. Architectures export some of the arch register
> sets using the corresponding note types via the PTRACE_GETREGSET and
> PTRACE_SETREGSET requests.
> The note name for these types is "LINUX", except NT_PRFPREG that is
> named "CORE".

However, NT_PRSTATUS is also named "CORE". It is also unclear what
"these types" refers to.

To fix these problems, define a name for each note type. The added
definitions are macros so the kernel and userspace can directly refer to
them.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
---
Changes in v2:
- Added a macro definition for each note type instead of trying to
  describe in a comment.
- Link to v1: https://lore.kernel.org/r/20241225-elf-v1-1-79e940350d50@daynix.com

---
Akihiko Odaki (5):
      elf: Define note name macros
      binfmt_elf: Use note name macros
      powwerpc: Use note name macros
      crash: Use note name macros
      crash: Remove KEXEC_CORE_NOTE_NAME

 arch/powerpc/kernel/fadump.c               |  2 +-
 arch/powerpc/platforms/powernv/opal-core.c |  8 +--
 arch/s390/kernel/crash_dump.c              |  2 +-
 fs/binfmt_elf.c                            | 21 ++++----
 fs/binfmt_elf_fdpic.c                      |  8 +--
 fs/proc/kcore.c                            | 12 ++---
 include/linux/kexec.h                      |  2 -
 include/linux/vmcore_info.h                |  3 +-
 include/uapi/linux/elf.h                   | 86 ++++++++++++++++++++++++++++--
 kernel/crash_core.c                        |  2 +-
 10 files changed, 111 insertions(+), 35 deletions(-)
---
base-commit: a32e14f8aef69b42826cf0998b068a43d486a9e9
change-id: 20241210-elf-b80ea3949c39

Best regards,
-- 
Akihiko Odaki <akihiko.odaki@daynix.com>



             reply	other threads:[~2025-01-04 14:38 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-01-04 14:38 Akihiko Odaki [this message]
2025-01-04 14:38 ` [PATCH v2 1/5] " Akihiko Odaki
2025-01-06  2:21   ` Baoquan He
2025-01-06  5:07     ` Akihiko Odaki
2025-01-06  6:06       ` Baoquan He
2025-01-06 14:39   ` Dave Martin
2025-01-06 16:48   ` Kees Cook
2025-01-06 17:23     ` Dave Martin
2025-01-04 14:38 ` [PATCH v2 2/5] binfmt_elf: Use " Akihiko Odaki
2025-01-04 14:38 ` [PATCH v2 3/5] powwerpc: " Akihiko Odaki
2025-01-04 14:38 ` [PATCH v2 4/5] crash: " Akihiko Odaki
2025-01-04 14:38 ` [PATCH v2 5/5] crash: Remove KEXEC_CORE_NOTE_NAME Akihiko Odaki
2025-01-06 14:51   ` Dave Martin
2025-01-06  6:07 ` [PATCH v2 0/5] elf: Define note name macros Baoquan He
2025-01-06 15:23 ` Dave Martin

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