31 May, 2019

1 commit

  • Based on 1 normalized pattern(s):

    this copyrighted material is made available to anyone wishing to use
    modify copy or redistribute it subject to the terms and conditions
    of the gnu general public license v 2

    extracted by the scancode license scanner the SPDX license identifier

    GPL-2.0-only

    has been chosen to replace the boilerplate/reference in 45 file(s).

    Signed-off-by: Thomas Gleixner
    Reviewed-by: Richard Fontana
    Reviewed-by: Allison Randal
    Reviewed-by: Steve Winslow
    Reviewed-by: Alexios Zavras
    Cc: linux-spdx@vger.kernel.org
    Link: https://lkml.kernel.org/r/20190528170027.342746075@linutronix.de
    Signed-off-by: Greg Kroah-Hartman

    Thomas Gleixner
     

27 Aug, 2018

1 commit

  • Christoph Hellwig suggested a slightly different path for handling
    backwards compatibility with the 32-bit time_t based system calls:

    Rather than simply reusing the compat_sys_* entry points on 32-bit
    architectures unchanged, we get rid of those entry points and the
    compat_time types by renaming them to something that makes more sense
    on 32-bit architectures (which don't have a compat mode otherwise),
    and then share the entry points under the new name with the 64-bit
    architectures that use them for implementing the compatibility.

    The following types and interfaces are renamed here, and moved
    from linux/compat_time.h to linux/time32.h:

    old new
    --- ---
    compat_time_t old_time32_t
    struct compat_timeval struct old_timeval32
    struct compat_timespec struct old_timespec32
    struct compat_itimerspec struct old_itimerspec32
    ns_to_compat_timeval() ns_to_old_timeval32()
    get_compat_itimerspec64() get_old_itimerspec32()
    put_compat_itimerspec64() put_old_itimerspec32()
    compat_get_timespec64() get_old_timespec32()
    compat_put_timespec64() put_old_timespec32()

    As we already have aliases in place, this patch addresses only the
    instances that are relevant to the system call interface in particular,
    not those that occur in device drivers and other modules. Those
    will get handled separately, while providing the 64-bit version
    of the respective interfaces.

    I'm not renaming the timex, rusage and itimerval structures, as we are
    still debating what the new interface will look like, and whether we
    will need a replacement at all.

    This also doesn't change the names of the syscall entry points, which can
    be done more easily when we actually switch over the 32-bit architectures
    to use them, at that point we need to change COMPAT_SYSCALL_DEFINEx to
    SYSCALL_DEFINEx with a new name, e.g. with a _time32 suffix.

    Suggested-by: Christoph Hellwig
    Link: https://lore.kernel.org/lkml/20180705222110.GA5698@infradead.org/
    Signed-off-by: Arnd Bergmann

    Arnd Bergmann
     

01 Feb, 2017

1 commit

  • Use the new nsec based cputime accessors as part of the whole cputime
    conversion from cputime_t to nsecs.

    Signed-off-by: Frederic Weisbecker
    Cc: Benjamin Herrenschmidt
    Cc: Fenghua Yu
    Cc: Heiko Carstens
    Cc: Linus Torvalds
    Cc: Martin Schwidefsky
    Cc: Michael Ellerman
    Cc: Paul Mackerras
    Cc: Peter Zijlstra
    Cc: Rik van Riel
    Cc: Stanislaw Gruszka
    Cc: Thomas Gleixner
    Cc: Tony Luck
    Cc: Wanpeng Li
    Link: http://lkml.kernel.org/r/1485832191-26889-12-git-send-email-fweisbec@gmail.com
    Signed-off-by: Ingo Molnar

    Frederic Weisbecker
     

04 Mar, 2014

1 commit


06 Oct, 2012

2 commits

  • This note has the following format:

    long count -- how many files are mapped
    long page_size -- units for file_ofs
    array of [COUNT] elements of
    long start
    long end
    long file_ofs
    followed by COUNT filenames in ASCII: "FILE1" NUL "FILE2" NUL...

    Signed-off-by: Denys Vlasenko
    Cc: Oleg Nesterov
    Cc: Amerigo Wang
    Cc: "Jonathan M. Foote"
    Cc: Roland McGrath
    Cc: Pedro Alves
    Cc: Fengguang Wu
    Cc: Stephen Rothwell
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Denys Vlasenko
     
  • Existing PRSTATUS note contains only si_signo, si_code, si_errno fields
    from the siginfo of the signal which caused core to be dumped.

    There are tools which try to analyze crashes for possible security
    implications, and they want to use, among other data, si_addr field from
    the SIGSEGV.

    This patch adds a new elf note, NT_SIGINFO, which contains the complete
    siginfo_t of the signal which killed the process.

    Signed-off-by: Denys Vlasenko
    Reviewed-by: Oleg Nesterov
    Cc: Amerigo Wang
    Cc: "Jonathan M. Foote"
    Cc: Roland McGrath
    Cc: Pedro Alves
    Cc: Fengguang Wu
    Cc: Stephen Rothwell
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Denys Vlasenko
     

07 Mar, 2010

1 commit

  • elf_core_dump() and elf_fdpic_core_dump() use #ifdef and the corresponding
    macro for hiding _multiline_ logics in functions. This patch removes
    #ifdef and replaces ELF_CORE_EXTRA_* by corresponding functions. For
    architectures not implemeonting ELF_CORE_EXTRA_*, we use weak functions in
    order to reduce a range of modification.

    This cleanup is for my next patches, but I think this cleanup itself is
    worth doing regardless of my firnal purpose.

    Signed-off-by: Daisuke HATAYAMA
    Cc: "Luck, Tony"
    Cc: Jeff Dike
    Cc: David Howells
    Cc: Greg Ungerer
    Cc: Roland McGrath
    Cc: Oleg Nesterov
    Cc: Ingo Molnar
    Cc: Alexander Viro
    Cc: Andi Kleen
    Cc: Alan Cox
    Cc:
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Daisuke HATAYAMA
     

30 Jan, 2008

1 commit

  • This adds fs/compat_binfmt_elf.c, a wrapper around fs/binfmt_elf.c for
    32-bit ELF support on 64-bit kernels. It can replace all the hand-rolled
    versions of this that each 32/64 arch has, which are all about the same.

    To use this, an arch's asm/elf.h has to define at least a few compat_*
    macros that parallel the various macros that fs/binfmt_elf.c uses for
    native support.

    There is no attempt to deal with compat macros for the core dump format
    support. To use this file, the arch has to define compat_gregset_t for
    linux/elfcore-compat.h and #define CORE_DUMP_USE_REGSET. The 32-bit
    compatible formats should come automatically from task_user_regset_view
    called on a 32-bit task.

    Signed-off-by: Roland McGrath
    Signed-off-by: Ingo Molnar
    Signed-off-by: Thomas Gleixner

    Roland McGrath