[PATCH v3 0/7] Isar cross-compilation support

[Alexander Smirnov <asmirnov@ilbers.de>]

Hi everybody,

sorry for the delay, this is the third version of cross-compilation
support for Isar.

Supported targets for cross-compilation:
 - stretch armhf
 - stretch amd64

Artifacts could be cross-compiled:
 - dpkg.bbclass users
 - dpkg-raw.bbclass users
 - kernel

Known issues:
 - if target and host architectures are the same, there is no need
   to use host buildchroot.
 - kernel module doesn't support cross-compilation. Default linux-headers
   package depends from target gcc binaries. So attempt to install, for
   example linux-headers-armmp, tries to install gcc:armhf, what rises
   conflict with the host tools.

To enable cross-compilation, the variable ISAR_CROSS_COMPILE should be set
to "1" in local.conf file.

With best regards,
Alex

Alexander Smirnov (7):
  isar-bootstrap: Update routine to determine host arch
  buildchroot: Split generic part
  buildchroot: Add host buildchroot
  isar-bootstrap-helper: Add target architecture for dpkg
  build.sh: Add additional parameter
  cross-compilation: Introduce variable switch
  linux: Add cross-compilation support

 meta-isar/conf/local.conf.sample                   |  5 ++
 meta/classes/dpkg-base.bbclass                     | 19 ++++-
 meta/classes/dpkg.bbclass                          |  4 +-
 meta/classes/isar-bootstrap-helper.bbclass         | 13 +++-
 meta/classes/wic-img.bbclass                       |  3 +-
 meta/conf/isar-bitbake.conf                        |  3 +-
 .../buildchroot/buildchroot-host.bb                | 31 ++++++++
 .../buildchroot/buildchroot-target.bb              | 54 ++++++++++++++
 meta/recipes-devtools/buildchroot/buildchroot.bb   | 83 ----------------------
 meta/recipes-devtools/buildchroot/buildchroot.inc  | 37 ++++++++++
 meta/recipes-devtools/buildchroot/files/build.sh   | 17 ++++-
 meta/recipes-kernel/linux-module/module.inc        |  7 ++
 meta/recipes-kernel/linux/files/build-kernel.sh    | 16 +++++
 meta/recipes-kernel/linux/linux-custom.inc         |  4 +-
 14 files changed, 200 insertions(+), 96 deletions(-)
 create mode 100644 meta/recipes-devtools/buildchroot/buildchroot-host.bb
 create mode 100644 meta/recipes-devtools/buildchroot/buildchroot-target.bb
 delete mode 100644 meta/recipes-devtools/buildchroot/buildchroot.bb
 create mode 100644 meta/recipes-devtools/buildchroot/buildchroot.inc

-- 
2.1.4