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Okay, as I added in an edit, I can now chroot into the rootfs copied from the gumstix jffs image. It was missing qemu-arm-static. Installing gcc into it will be nontrivial however. Some of the problem before was that my linux mint got somehow hosed, and it took multiple reboots to fix it (even x11 failed on the first reboot). Seems to be working okay now...
But no real hopes of things compiled in this uclibc-based gumstix rootfs to actually work in the K1, because static binaries copied FROM this image to the K1 failed.
I need to do something else for awhile. No more experimenting. Reading. Kindle source code. Again... (I am fed up with trying to build something for the K1). Code build for K2 and newer works just fine. What is so "special" about the K1? Does arm-gcc ignore the "-march=armv5te -mtune=xscale" switches or something (illegal instruction)? I suppose I need to actually disassemble the binary and see if it compiled correctly (though it does run in qemu-arm-static just fine).
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