[slightly off-topic]
I work with a number of embedded ARM devices, all with different
processors, hence somewhat different tuning and build directories:
Raspberry-Pi (1,2,3 - mostly 3):
TUNE_FEATURES = "arm armv7ve vfp thumb neon vfpv4 callconvention-hard
cortexa7"
build dirs:
tmp/work/cortexa7hf-neon-vfpv4-poky-linux-gnueabi
BeagleBoneBlack:
TUNE_FEATURES = "arm armv7a vfp thumb neon callconvention-hard"
build dirs:
tmp/work/armv7ahf-neon-poky-linux-gnueabi
i.MX6:
TUNE_FEATURES = "arm armv7a vfp thumb neon callconvention-hard cortexa9"
build dirs:
tmp/work/cortexa9hf-neon-poky-linux-gnueabi
tmp/work/cortexa9hf-neon-mx6qdl-poky-linux-gnueabi
tmp/work/cortexa9t2hf-neon-mx6qdl-poky-linux-gnueabi
What I'm wondering is, except for the obvious programs that use SoC specific
functions like the IPU/GPU on the i.MX6, how different are these really? So
much so that they have to all have unique binaries? Surely I could build
busybox or python and run the same binary on all three?
--
------------------------------------------------------------
Gary Thomas | Consulting for the
MLB Associates | Embedded world
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