linux/arch
Linus Torvalds c6f21243ce Merge branch 'x86-vdso-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 vdso changes from Peter Anvin:
 "This is the revamp of the 32-bit vdso and the associated cleanups.

  This adds timekeeping support to the 32-bit vdso that we already have
  in the 64-bit vdso.  Although 32-bit x86 is legacy, it is likely to
  remain in the embedded space for a very long time to come.

  This removes the traditional COMPAT_VDSO support; the configuration
  variable is reused for simply removing the 32-bit vdso, which will
  produce correct results but obviously suffer a performance penalty.
  Only one beta version of glibc was affected, but that version was
  unfortunately included in one OpenSUSE release.

  This is not the end of the vdso cleanups.  Stefani and Andy have
  agreed to continue work for the next kernel cycle; in fact Andy has
  already produced another set of cleanups that came too late for this
  cycle.

  An incidental, but arguably important, change is that this ensures
  that unused space in the VVAR page is properly zeroed.  It wasn't
  before, and would contain whatever garbage was left in memory by BIOS
  or the bootloader.  Since the VVAR page is accessible to user space
  this had the potential of information leaks"

* 'x86-vdso-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits)
  x86, vdso: Fix the symbol versions on the 32-bit vDSO
  x86, vdso, build: Don't rebuild 32-bit vdsos on every make
  x86, vdso: Actually discard the .discard sections
  x86, vdso: Fix size of get_unmapped_area()
  x86, vdso: Finish removing VDSO32_PRELINK
  x86, vdso: Move more vdso definitions into vdso.h
  x86: Load the 32-bit vdso in place, just like the 64-bit vdsos
  x86, vdso32: handle 32 bit vDSO larger one page
  x86, vdso32: Disable stack protector, adjust optimizations
  x86, vdso: Zero-pad the VVAR page
  x86, vdso: Add 32 bit VDSO time support for 64 bit kernel
  x86, vdso: Add 32 bit VDSO time support for 32 bit kernel
  x86, vdso: Patch alternatives in the 32-bit VDSO
  x86, vdso: Introduce VVAR marco for vdso32
  x86, vdso: Cleanup __vdso_gettimeofday()
  x86, vdso: Replace VVAR(vsyscall_gtod_data) by gtod macro
  x86, vdso: __vdso_clock_gettime() cleanup
  x86, vdso: Revamp vclock_gettime.c
  mm: Add new func _install_special_mapping() to mmap.c
  x86, vdso: Make vsyscall_gtod_data handling x86 generic
  ...
2014-04-02 12:26:43 -07:00
..
alpha PCI changes for the v3.15 merge window: 2014-04-01 15:14:04 -07:00
arc Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-03-31 10:59:39 -07:00
arm USB patches for 3.15-rc1 2014-04-01 17:06:09 -07:00
arm64 ACPI and power management updates for 3.15-rc1 2014-04-01 12:48:54 -07:00
avr32 Char/Misc driver patches for 3.15-rc1 2014-04-01 16:13:21 -07:00
blackfin Pin control bulk changes for the v3.15 series, no new core 2014-04-01 13:10:49 -07:00
c6x Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-03-31 10:59:39 -07:00
cris Merge branch 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-04-01 10:16:10 -07:00
frv PCI changes for the v3.15 merge window: 2014-04-01 15:14:04 -07:00
hexagon locking/mcs: Allow architecture specific asm files to be used for contended case 2014-02-09 21:18:52 +01:00
ia64 PCI changes for the v3.15 merge window: 2014-04-01 15:14:04 -07:00
m32r arch: Remove stub cputime.h headers 2014-03-13 16:09:30 +01:00
m68k Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-04-01 11:22:57 -07:00
metag Metag architecture changes for v3.15 2014-04-02 12:22:03 -07:00
microblaze PCI changes for the v3.15 merge window: 2014-04-01 15:14:04 -07:00
mips USB patches for 3.15-rc1 2014-04-01 17:06:09 -07:00
mn10300 Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-04-01 11:22:57 -07:00
openrisc locking/mcs: Allow architecture specific asm files to be used for contended case 2014-02-09 21:18:52 +01:00
parisc Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-04-01 11:22:57 -07:00
powerpc USB patches for 3.15-rc1 2014-04-01 17:06:09 -07:00
s390 Driver core / sysfs patches for 3.15-rc1 2014-04-01 16:28:19 -07:00
score arch: Remove stub cputime.h headers 2014-03-13 16:09:30 +01:00
sh USB patches for 3.15-rc1 2014-04-01 17:06:09 -07:00
sparc PCI changes for the v3.15 merge window: 2014-04-01 15:14:04 -07:00
tile PCI changes for the v3.15 merge window: 2014-04-01 15:14:04 -07:00
um locking/mcs: Allow architecture specific asm files to be used for contended case 2014-02-09 21:18:52 +01:00
unicore32 locking/mcs: Allow architecture specific asm files to be used for contended case 2014-02-09 21:18:52 +01:00
x86 Merge branch 'x86-vdso-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-04-02 12:26:43 -07:00
xtensa Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-04-01 11:22:57 -07:00
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