[PATCH v4 00/10] Add cross-compilation support

[Alexander Smirnov <asmirnov@ilbers.de>]

Hi Jan,

here is the latest version of cross-compilation. Current achievements:

1. Default Isar build stays untouched :-)
2. Added ARM64 support
3. Fixed and *tested* building of ARM/ARM64 custom kernel and modules
4. I was able to build 'jailhouse-images' for QEMU ARM64

The known issues are unfortunately the same:
1. Check if target_arch = host_arch to disable cross-compilation
2. wic image depends on target buildchroot
3. Document this stuff (I've already started this)

Branch to try: asmirnov/devel

Alexander Smirnov (11):
  buildchroot: Add host buildchroot
  isar-bootstrap-helper: Add target architecture for dpkg
  build.sh: Add additional parameter
  cross-compilation: Introduce variable switch
  linux: Add ARM cross-compilation support
  isar: Add ARM64 cross-compilation support
  linux-module: Export ARCH and CROSS_COMPILE
  linux: Drop gcc from dependencies
  build.sh: Do not check deps in dpkg-buildpackage
  build.sh: Do not check deps in dpkg-buildpackage
  linux-module: Enable cross-build for testing

 meta-isar/conf/local.conf.sample                   |  5 ++++
 meta/classes/dpkg-base.bbclass                     | 19 ++++++++++--
 meta/classes/dpkg-raw.bbclass                      |  1 -
 meta/classes/dpkg.bbclass                          |  4 +--
 meta/classes/isar-bootstrap-helper.bbclass         |  5 ++++
 meta/conf/isar-bitbake.conf                        |  1 +
 .../buildchroot/buildchroot-host.bb                | 34 ++++++++++++++++++++++
 meta/recipes-devtools/buildchroot/files/build.sh   | 17 +++++++++--
 .../recipes-kernel/linux-module/files/debian/rules | 12 ++++++++
 meta/recipes-kernel/linux-module/module.inc        |  7 +++++
 meta/recipes-kernel/linux/files/build-kernel.sh    | 28 ++++++++++++++++--
 meta/recipes-kernel/linux/linux-custom.inc         |  4 +--
 12 files changed, 123 insertions(+), 14 deletions(-)
 create mode 100644 meta/recipes-devtools/buildchroot/buildchroot-host.bb

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2.1.4