linux.git/fs/binfmt_elf.c, branch v6.4

Merge tag 'mm-nonmm-stable-2023-04-27-16-01' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2023-04-28T02:57:00+00:00

Pull non-MM updates from Andrew Morton:
 "Mainly singleton patches all over the place.

  Series of note are:

   - updates to scripts/gdb from Glenn Washburn

   - kexec cleanups from Bjorn Helgaas"

* tag 'mm-nonmm-stable-2023-04-27-16-01' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (50 commits)
  mailmap: add entries for Paul Mackerras
  libgcc: add forward declarations for generic library routines
  mailmap: add entry for Oleksandr
  ocfs2: reduce ioctl stack usage
  fs/proc: add Kthread flag to /proc/$pid/status
  ia64: fix an addr to taddr in huge_pte_offset()
  checkpatch: introduce proper bindings license check
  epoll: rename global epmutex
  scripts/gdb: add GDB convenience functions $lx_dentry_name() and $lx_i_dentry()
  scripts/gdb: create linux/vfs.py for VFS related GDB helpers
  uapi/linux/const.h: prefer ISO-friendly __typeof__
  delayacct: track delays from IRQ/SOFTIRQ
  scripts/gdb: timerlist: convert int chunks to str
  scripts/gdb: print interrupts
  scripts/gdb: raise error with reduced debugging information
  scripts/gdb: add a Radix Tree Parser
  lib/rbtree: use '+' instead of '|' for setting color.
  proc/stat: remove arch_idle_time()
  checkpatch: check for misuse of the link tags
  checkpatch: allow Closes tags with links
  ...

binfmt_elf: remove MODULE_LICENSE in non-modules

2023-04-13T20:13:52+00:00

Since commit 8b41fc4454e ("kbuild: create modules.builtin without
Makefile.modbuiltin or tristate.conf"), MODULE_LICENSE declarations
are used to identify modules. As a consequence, uses of the macro
in non-modules will cause modprobe to misidentify their containing
object file as a module when it is not (false positives), and modprobe
might succeed rather than failing with a suitable error message.

So remove it in the files in this commit, none of which can be built as
modules.

Signed-off-by: Nick Alcock 
Suggested-by: Luis Chamberlain 
Cc: Luis Chamberlain 
Cc: linux-modules@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: Hitomi Hasegawa 
Cc: Alexander Viro 
Cc: Christian Brauner 
Cc: linux-fsdevel@vger.kernel.org
Cc: linux-mm@kvack.org
Signed-off-by: Luis Chamberlain

ELF: fix all "Elf" typos

2023-04-08T20:45:37+00:00

ELF is acronym and therefore should be spelled in all caps.

I left one exception at Documentation/arm/nwfpe/nwfpe.rst which looks like
being written in the first person.

Link: https://lkml.kernel.org/r/Y/3wGWQviIOkyLJW@p183
Signed-off-by: Alexey Dobriyan 
Signed-off-by: Andrew Morton

Merge tag 'v6.2-rc6' into sched/core, to pick up fixes

2023-01-31T14:01:20+00:00

Pick up fixes before merging another batch of cpuidle updates.

Signed-off-by: Ingo Molnar

elfcore: Add a cprm parameter to elf_core_extra_{phdrs,data_size}

2023-01-05T15:12:12+00:00

A subsequent fix for arm64 will use this parameter to parse the vma
information from the snapshot created by dump_vma_snapshot() rather than
traversing the vma list without the mmap_lock.

Fixes: 6dd8b1a0b6cb ("arm64: mte: Dump the MTE tags in the core file")
Cc:  # 5.18.x
Signed-off-by: Catalin Marinas 
Reported-by: Seth Jenkins 
Suggested-by: Seth Jenkins 
Cc: Will Deacon 
Cc: Eric Biederman 
Cc: Kees Cook 
Link: https://lore.kernel.org/r/20221222181251.1345752-3-catalin.marinas@arm.com
Signed-off-by: Will Deacon

rseq: Introduce feature size and alignment ELF auxiliary vector entries

2022-12-27T11:52:10+00:00

Export the rseq feature size supported by the kernel as well as the
required allocation alignment for the rseq per-thread area to user-space
through ELF auxiliary vector entries.

This is part of the extensible rseq ABI.

Signed-off-by: Mathieu Desnoyers 
Signed-off-by: Peter Zijlstra (Intel) 
Link: https://lore.kernel.org/r/20221122203932.231377-3-mathieu.desnoyers@efficios.com

Merge tag 'pull-elfcore' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2022-12-13T02:18:34+00:00

Pull elf coredumping updates from Al Viro:
 "Unification of regset and non-regset sides of ELF coredump handling.

  Collecting per-thread register values is the only thing that needs to
  be ifdefed there..."

* tag 'pull-elfcore' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  [elf] get rid of get_note_info_size()
  [elf] unify regset and non-regset cases
  [elf][non-regset] use elf_core_copy_task_regs() for dumper as well
  [elf][non-regset] uninline elf_core_copy_task_fpregs() (and lose pt_regs argument)
  elf_core_copy_task_regs(): task_pt_regs is defined everywhere
  [elf][regset] simplify thread list handling in fill_note_info()
  [elf][regset] clean fill_note_info() a bit
  kill extern of vsyscall32_sysctl
  kill coredump_params->regs
  kill signal_pt_regs()

[elf] get rid of get_note_info_size()

2022-11-25T04:26:04+00:00

it's trivial now...

Signed-off-by: Al Viro

[elf] unify regset and non-regset cases

2022-11-25T04:26:04+00:00

The only real difference is in filling per-thread notes - getting
the values of registers.   And this is the only part that is worth
an ifdef - we don't need to duplicate the logics regarding gathering
threads, filling other notes, etc.

It would've been hard to do back when regset-based variant had been
introduced, mostly due to sharing bits and pieces of helpers with
aout coredumps.  As the result, too much had been duplicated and
the copies had drifted away since then.  Now it can be done cleanly...

Signed-off-by: Al Viro

[elf][non-regset] use elf_core_copy_task_regs() for dumper as well

2022-11-25T04:26:04+00:00

elf_core_copy_regs() is equivalent to elf_core_copy_task_regs() of
current on all architectures.

Signed-off-by: Al Viro