I have read that Fedora 18 will be the last Fedora distribution that will support the armv5tel userspace. I am a bit worried because I have built a project using the distribution on an armv5tel CPU with custom-built kernels. From reading
https://fedoraproject.org/wiki/Architectures/ARM/Secret_Decoder_Ring I understand that the main difference between armv5tel and armv7hl is that armv5tel forces passing floats on the stack and armv7hl uses the FPU. I was thinking about the possibility that
a CPU model that might have a FPU and currently runs an armv5tel userspace might be updated to run armv7hl instead. The end goal is to make the armv5tel system run the Fedora 19 armv7hl userspace with the custom-built kernel.
1) In /proc/cpuinfo, I have seen the "vfp" flag. Does this stand for "vector floating point", a FPU? Could there be other kinds of FPU that might be reported as different flags?
2) If an ARM chipset that is officially armv5tel can be guaranteed to have a FPU (vfp or otherwise), can it boot an armv7hl userspace with the same custom-built armv5tel kernel it used before? Do I have to watch out for specific kernel compile options
before attempting this?
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