[Buildroot] [PATCH 0/5] arch/arm: introduce big.LITTLE configurations

[Yann E. MORIN <yann.morin.1998@free.fr>]

Hello All!

This series adds four new CPU variants to the arm choice, to enable
optimising for big.LITTLE CPUs.

We first fix the current values inthe first two patches, then introduce
the actual new variants, and then make use of the sole packages that
needs to know of them.

This has been only slightly tested by simply building the toolchains for
the six possibilities:
  - the four variants in arm mode (32-bit),
  - the two armv8 variants in aarch64 mode (64-bit).

The variants were introduced in various versions of gcc, so we protect
the internal gcc as well as the external toolchains accordingly.


Regards,
Yann E. MORIN.


The following changes since commit 644c024edeb7e20bd96ce4426aeca2cbcd74d9b9

  syslinux: drop patch 0003, not needed after gnu-efi update (2017-07-04 18:45:26 +0200)


are available in the git repository at:

  git://git.buildroot.org/~ymorin/git/buildroot.git

for you to fetch changes up to cdc5ada0fd19765aff9779fc109a26284c9320b6

  package/kvm-unit-test: available for big.LITTLE arm cores too (2017-07-05 12:07:49 +0200)


----------------------------------------------------------------
Yann E. MORIN (5):
      arch/arm: fix -mcpu default values for AArch64
      arch/arm: fix defaults for AArch64 in 64-bit mode
      package/kvm-unit-tests: introduce _ARCH_SUPPORTS
      arch/arm: add big.LITTLE cpu variants
      package/kvm-unit-test: available for big.LITTLE arm cores too

 arch/Config.in.arm                                 | 50 ++++++++++++++++++----
 package/gcc/Config.in.host                         |  5 ++-
 package/kvm-unit-tests/Config.in                   | 19 ++++----
 .../Config.in                                      |  2 +
 .../toolchain-external-codesourcery-arm/Config.in  |  4 ++
 5 files changed, 62 insertions(+), 18 deletions(-)

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