Alejandro Hernandez Samaniego 0f84d24df8 bitbake: bitbake: Add Azure Storage fetcher implementation
Allows bitbake to fetch from an Azure Storage account.

        The fetcher submodule is compatible with the az:// URI protocol, its
        functionality is based on bitbakes wget fetcher, superior in performance
        to using a propietary tool like azcopy which can handle cloud storage
        account operations with more functionality (that we dont need in a fetcher)
	but less compatibility.

        A sample URI uses can be defined in the following way:
	SRC_URI = "az://<azure-storage-account>.blob.core.windows.net/<container>/foo.tar.xz"

        This fetcher can easily be used with PREMIRRORS and SSTATE_MIRRORS, e.g.:

        SSTATE_MIRRORS = "file://.* az://<azure-storage-account>.blob.core.windows.net/sstate-cache/PATH;downloadfilename=PATH \n"

        PREMIRRORS_prepend = "\
            git://.*/.* az://<azure-storage-account>.blob.core.windows.net/downloads/ \n \
            ftp://.*/.* az://<azure-storage-account>.blob.core.windows.net/downloads/ \n \
            http://.*/.* az://<azure-storage-account>.blob.core.windows.net/downloads/ \n \
            https://.*/.* az://<azure-storage-account>.blob.core.windows.net/downloads/ \n \
        "

        Can also be used with non-public access Azure Storage accounts/containers via a
        Shared Access Signature by declaring the AZ_SAS variable which will be
        automatically used by the fetcher:

        AZ_SAS="?sv=2000-01-01&ss=...&sig=somesignature"

(Bitbake rev: b103b02f2ce2f8f5079f17ec1a854f904c2110a4)

Signed-off-by: Alejandro Enedino Hernandez Samaniego <alhe@linux.microsoft.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2021-03-11 14:04:45 +00:00
2021-03-11 14:00:36 +00:00

QEMU Emulation Targets
======================

To simplify development, the build system supports building images to
work with the QEMU emulator in system emulation mode. Several architectures
are currently supported in 32 and 64 bit variants:

  * ARM (qemuarm + qemuarm64)
  * x86 (qemux86 + qemux86-64)
  * PowerPC (qemuppc only)
  * MIPS (qemumips + qemumips64)

Use of the QEMU images is covered in the Yocto Project Reference Manual.
The appropriate MACHINE variable value corresponding to the target is given
in brackets.
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