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meta-zephyr: add support for cortexm3 toolchain

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Cortex-M3 is not supported natively by oe-embedded, so we need to
do it here. With these changes it should be possible to run:

To build all Zephyr tests:
    $ MACHINE=qemuarm bitbake zephyr-kernel-test-all
    $ MACHINE=qemuarm bitbake zephyr-kernel-test-all -ctestimage

To build "philosophers" sample:
    $ MACHINE=qemuarm bitbake zephyr-philosophers

Once built, you can run the created "philosophers" image in qemu
(at this point the various paths have to be entered manually):

    $ ./tmp/sysroots/x86_64-linux/usr/bin/qemu-system-arm \
          -kernel ./tmp/deploy/images/qemuarm/philosophers.elf \
          -cpu cortex-m3 -machine lm3s6965evb -nographic -vga none

Signed-off-by: Juro Bystricky <juro.bystricky@intel.com>
This commit is contained in:
Juro Bystricky
2016-12-28 10:33:39 -08:00
parent 97643716c2
commit 1e2da74cf0
3 changed files with 23 additions and 0 deletions
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recipes-devtools/gcc/gcc-cross_6.%.bbappend Normal file
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EXTRA_OECONF_append_armv7m = " --with-arch=armv7-m --with-mode=thumb "