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  1. 11 11月, 2015 1 次提交
    • A
      MIPS: Initial implementation of a VDSO · ebb5e78c
      由 Alex Smith 提交于 
      Add an initial implementation of a proper (i.e. an ELF shared library)
VDSO. With this commit it does not export any symbols, it only replaces
the current signal return trampoline page. A later commit will add user
implementations of gettimeofday()/clock_gettime().

To support both new toolchains and old ones which don't generate ABI
flags section, we define its content manually and then use a tool
(genvdso) to patch up the section to have the correct name and type.
genvdso also extracts symbol offsets ({,rt_}sigreturn) needed by the
kernel, and generates a C file containing a "struct mips_vdso_image"
containing both the VDSO data and these offsets. This C file is
compiled into the kernel.

On 64-bit kernels we require a different VDSO for each supported ABI,
so we may build up to 3 different VDSOs. The VDSO to use is selected by
the mips_abi structure.

A kernel/user shared data page is created and mapped below the VDSO
image. This is currently empty, but will be used by the user time
function implementations which are added later.

[markos.chandras@imgtec.com:
- Add more comments
- Move abi detection in genvdso.h since it's the get_symbol function
that needs it.
- Add an R6 specific way to calculate the base address of VDSO in order
to avoid the branch instruction which affects performance.
- Do not patch .gnu.attributes since it's not needed for dynamic linking.
- Simplify Makefile a little bit.
- checkpatch fixes
- Restrict VDSO support for binutils < 2.25 for pre-R6
- Include atomic64.h for O32 variant on MIPS64]
Signed-off-by: NAlex Smith <alex.smith@imgtec.com>
Signed-off-by: NMarkos Chandras <markos.chandras@imgtec.com>
Cc: Matthew Fortune <matthew.fortune@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11337/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
      ebb5e78c
  3. 03 9月, 2015 1 次提交
  5. 06 8月, 2014 2 次提交
  7. 04 2月, 2013 2 次提交
  9. 01 2月, 2013 1 次提交
  11. 02 6月, 2012 1 次提交
  13. 22 5月, 2012 1 次提交
  15. 27 4月, 2012 1 次提交
    • M
      MIPS: Use set_current_blocked() and block_sigmask() · 8598f3cd
      由 Matt Fleming 提交于 
      As described in e6fa16ab ("signal: sigprocmask() should do
retarget_shared_pending()") the modification of current->blocked is
incorrect as we need to check whether the signal we're about to block
is pending in the shared queue.

Also, use the new helper function introduced in commit 5e6292c0
("signal: add block_sigmask() for adding sigmask to current->blocked")
which centralises the code for updating current->blocked after
successfully delivering a signal and reduces the amount of duplicate
code across architectures. In the past some architectures got this
code wrong, so using this helper function should stop that from
happening again.

Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: David Daney <ddaney@caviumnetworks.com>
Cc: linux-mips@linux-mips.org
Signed-off-by: NMatt Fleming <matt.fleming@intel.com>
Patchwork: https://patchwork.linux-mips.org/patch/3363/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
      8598f3cd
  17. 29 3月, 2012 1 次提交
  19. 18 10月, 2010 1 次提交
  21. 13 4月, 2010 1 次提交
    • D
      MIPS: Move signal trampolines off of the stack. · d814c28c
      由 David Daney 提交于 
      This is a follow on to the vdso patch.

Since all processes now have signal trampolines permanently mapped, we
can use those instead of putting the trampoline on the stack and
invalidating the corresponding icache across all CPUs.  We also get rid
of a bunch of ICACHE_REFILLS_WORKAROUND_WAR code.

[Ralf: GDB 7.1 which has the necessary modifications to allow backtracing
over signal frames will supposedly be released tomorrow.  The old signal
frame format obsoleted by this patch exists in two variations, for sane
processors and for those requiring ICACHE_REFILLS_WORKAROUND_WAR.  So
there was never a GDB which did support backtracing over signal frames
on all MIPS systems.  This convinved me this series should be applied and
pushed upstream as soon as possible.]
Signed-off-by: NDavid Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/974/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
      d814c28c
  23. 12 10月, 2007 1 次提交
  25. 27 6月, 2007 1 次提交
  27. 09 5月, 2007 1 次提交
  29. 17 3月, 2007 1 次提交
  31. 19 2月, 2007 1 次提交
  33. 14 2月, 2007 3 次提交
  35. 11 2月, 2007 3 次提交
  37. 07 2月, 2007 1 次提交
  39. 30 11月, 2006 1 次提交
  41. 02 10月, 2006 1 次提交
  43. 01 10月, 2006 1 次提交
  45. 21 3月, 2006 2 次提交
  47. 22 2月, 2006 1 次提交
  49. 15 2月, 2006 1 次提交
  51. 09 2月, 2006 1 次提交
  53. 07 2月, 2006 2 次提交
  55. 30 10月, 2005 2 次提交
  57. 17 4月, 2005 1 次提交
    • L
      Linux-2.6.12-rc2 · 1da177e4
      由 Linus Torvalds 提交于 
      Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
      1da177e4