Martin Jansa a32ddf91bc bitbake.conf: use ${TCMODE}-${TCLIBC} directory for CACHE
* move TCMODE and TCLIBC from defaultsetup.conf to bitbake.conf
* set CACHE as it was in defaultsetup.conf and drop it from defaultsetup.conf
* most if not all DISTROs are now including defaultsetup.conf and
  TCLIBC is pretty much expected to be always set correctly, e.g.:
  meta/recipes-core/systemd/systemd_243.2.bb:    if d.getVar('TCLIBC') == "musl":
  meta/recipes-devtools/gcc/gcc-runtime.inc:        if [ "${TCLIBC}" != "glibc" ]; then
  meta/recipes-devtools/gcc/libgcc.inc:     if [ "${TCLIBC}" != "glibc" ]; then
  meta/recipes-devtools/icecc-toolchain/nativesdk-icecc-toolchain_0.1.bb:ENV_NAME="${DISTRO}-${TCLIBC}-${SDK_ARCH}-@TARGET_PREFIX@${DISTRO_VERSION}.tar.gz"
  meta/recipes-devtools/valgrind/valgrind_3.15.0.bb:RRECOMMENDS_${PN} += "${TCLIBC}-dbg"
  meta/recipes-kernel/linux/kernel-devsrc.bb:RDEPENDS_${PN} = "bc python3 flex bison ${TCLIBC}-utils"

  meta/classes/buildhistory.bbclass:BUILDHISTORY_DIR_IMAGE = "${BUILDHISTORY_DIR}/images/${MACHINE_ARCH}/${TCLIBC}/${IMAGE_BASENAME}"
  meta/classes/cross-canadian.bbclass:    if d.getVar("TCLIBC") in [ 'baremetal', 'newlib' ]:
  meta/classes/kernel.bbclass:    tclibc = d.getVar('TCLIBC')
  meta/classes/toaster.bbclass:    BUILDHISTORY_DIR_IMAGE_BASE = e.data.expand("%s/images/${MACHINE_ARCH}/${TCLIBC}/"% BUILDHISTORY_DIR)

(From OE-Core rev: 57aa60ef6422568b425b6ccc4451567efc578469)

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2020-09-17 09:47:46 +01:00

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.
Description
No description provided
Readme 251 MiB