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NiLuJe · 06-05-2012, 06:04 PM

@knc1: https://www.mobileread.com/forums/sho...7&postcount=22

Linux 2.6.16 is the minimum kernel version that the glibc was built to support. (Even when dynamically linked, trying to run a binary targeting a newer kernel than your host will not work, the loader will shout at you and abort

). (It's set via glibc's --want-kernel configure arg [it does require that the kernel headers you build against be at *least* equal to that, but you can safely build against more recent headers]).

(I usually use readelf over objdump, readelf -n usually does the trick to check the ABI, and readelf -p.comment to check the GCC tag if it exists)

NPTL apparently requires 2.6.9, so that's probably what's used on most current distros (it's gentoo's default). I tweak it on my boxes, that's why the kindletool builds require Kernel 2.6.38/2.6.39.

It's also configurable when building a toolchain via crosstool-ng, and I usually set it to the oldest Kernel used on the Kindle series the toolchain targets (2.6.22 in the case of the K2/K3 cpu).

06-05-2012, 06:04 PM	#36
NiLuJe BLAM! Posts: 13,477 Karma: 26012494 Join Date: Jun 2010 Location: Paris, France Device: Kindle 2i, 3g, 4, 5w, PW, PW2, PW5; Kobo H2O, Forma, Elipsa, Sage, C2E	@knc1: https://www.mobileread.com/forums/sho...7&postcount=22 Linux 2.6.16 is the minimum kernel version that the glibc was built to support. (Even when dynamically linked, trying to run a binary targeting a newer kernel than your host will not work, the loader will shout at you and abort ). (It's set via glibc's --want-kernel configure arg [it does require that the kernel headers you build against be at least equal to that, but you can safely build against more recent headers]). (I usually use readelf over objdump, readelf -n usually does the trick to check the ABI, and readelf -p.comment to check the GCC tag if it exists) NPTL apparently requires 2.6.9, so that's probably what's used on most current distros (it's gentoo's default). I tweak it on my boxes, that's why the kindletool builds require Kernel 2.6.38/2.6.39. It's also configurable when building a toolchain via crosstool-ng, and I usually set it to the oldest Kernel used on the Kindle series the toolchain targets (2.6.22 in the case of the K2/K3 cpu). Last edited by NiLuJe; 06-05-2012 at 06:21 PM.