[Buildroot] [PATCH 0/24 v4] arch: move atomics to arch, not toolchain (branch yem/atomics)

[Yann E. MORIN]

Hello All!

This series is a follow-up to, and includes Anton's series, to introduce
awareness of atomic operations, so pacjages can be hidden-away on
architectures that do not provide atomic operations.

We've discussed this with Thomas on IRC and on the list, and although
this comes late in the cycle, we both consider this to be materials for
the *current* release.

I tried to cover all bases here, but there are architectures I have
close-to-zero knowledge of, so please speak up if you disagree on my
proposal.

The series is split in thre parts:

  - patches 1..7 renames the option, and moves it out of toolchain and
    to an architecture option, and add the option to the manual;

  - patches 8..11 hides more packages due to their requiring atomics

  - patches 12..24 convert all our architectures to selectively declare
    their (non-)support for atomic ops, to finally get rid of the
    generic default value.


Changes v3 -> v4:
  - rename the option into an architecture option  (Yann)


Regards,
Yann E. MORIN.


The following changes since commit 8c94df28c75ff834ef77df781b753e0453b8c8dd:

  CHANGES: update with recent changes (2014-08-17 09:44:53 +0200)

are available in the git repository at:

  git://gitorious.org/buildroot/buildroot.git yem/atomics

for you to fetch changes up to b8d37160ad1e6fafbba18de4733512650e00f6ec:

  arch: remove no-longer default on atomics option (2014-08-17 14:32:07 +0200)

----------------------------------------------------------------
Anton Kolesov (5):
      manual: document dependencies on atomic operations
      cairo: add dependency on atomic operations
      pulseaudio: add dependency on atomic operations
      libftdi: add dependency on atomic operations
      msgpack: add dependency on atomic operations

Yann E. MORIN (19):
      arch: add an option to specify if the arch has atomic ops
      package/icu: use the new ARCH_HAS_ATOMICS as dependency
      package/libtorrent: use the new ARCH_HAS_ATOMICS as dependency
      package/jack2: use the new ARCH_HAS_ATOMICS as dependency
      package/thrift: use the new ARCH_HAS_ATOMICS as dependency
      toolchain: drop the now-unused old BR2_TOOLCHAIN_HAS_ATOMIC_INTRINSICS
      arch/arm: always has atomic ops
      arch/avr32: always has atomic ops
      arch/bfin: always has atomic ops
      arch/m68k: always has atomic ops
      arch/microblaze: always has atomic ops
      arch/mips: always has atomic ops
      arch/nios2: always has atomic ops
      arch/powerpc: always has atomic ops
      arch/sh: always has atomic ops
      arch/sparc: always has atomic ops
      arch/x86: all x86 but i386 has atomics operations
      arch/xtensa: always has atomic ops
      arch: remove no-longer default on atomics option

 arch/Config.in                                 |  4 ++++
 arch/Config.in.aarch64                         |  3 +++
 arch/Config.in.arc                             |  2 +-
 arch/Config.in.arm                             |  3 +++
 arch/Config.in.avr32                           |  3 +++
 arch/Config.in.bfin                            |  3 +++
 arch/Config.in.m68k                            |  3 +++
 arch/Config.in.microblaze                      |  3 +++
 arch/Config.in.mips                            |  3 +++
 arch/Config.in.nios2                           |  3 +++
 arch/Config.in.powerpc                         |  3 +++
 arch/Config.in.sh                              |  3 +++
 arch/Config.in.sparc                           |  3 +++
 arch/Config.in.x86                             |  3 +++
 arch/Config.in.xtensa                          |  3 +++
 docs/manual/adding-packages-directory.txt      |  4 ++++
 package/beecrypt/Config.in                     | 12 ++++++------
 package/cairo/Config.in                        |  1 +
 package/cppcms/Config.in                       |  7 ++++---
 package/efl/libevas-generic-loaders/Config.in  |  2 ++
 package/gstreamer/gst-plugins-good/Config.in   |  7 +++++++
 package/gstreamer1/gst1-plugins-good/Config.in |  7 +++++++
 package/icu/Config.in                          |  7 ++++---
 package/jack2/Config.in                        |  7 ++++---
 package/libftdi/Config.in                      |  2 ++
 package/libgtk2/Config.in                      |  2 ++
 package/librsvg/Config.in                      |  2 ++
 package/libsvg-cairo/Config.in                 |  1 +
 package/libtorrent/Config.in                   |  8 ++++----
 package/mpd/Config.in                          |  2 ++
 package/msgpack/Config.in                      |  4 ++--
 package/openocd/Config.in                      |  1 +
 package/pango/Config.in                        |  2 ++
 package/php/Config.ext                         |  8 ++++----
 package/pulseaudio/Config.in                   |  2 ++
 package/python-msgpack/Config.in               |  4 ++--
 package/qt5/qt5base/Config.in                  |  5 +----
 package/rtorrent/Config.in                     |  8 ++++----
 package/thrift/Config.in                       |  8 ++++----
 package/webkit/Config.in                       |  2 ++
 package/weston/Config.in                       |  2 ++
 toolchain/toolchain-common.in                  |  4 ----
 42 files changed, 122 insertions(+), 44 deletions(-)

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