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Hi, I'm using a 2.6.16 kernel on an AT91 ARM board. With all the positive reports recently of people using gcc-4/EABI/NTPL, I decided to make a clean break and try my luck with a new toolchain. I applied Michael Edwards' variation on Martin Guy's patch to crosstool-0.42: http://sourceware.org/ml/crossgcc/2006-04/msg00187.html This toolchain produced a [seemingly] working kernel, but the system would hang after "freeing init memory". I re-built the gcc-4.1.0-glibc-2.4 toolchain for an "arm-linux" target (non-EABI) to see if that would help isolate the problem. The new toolchain exhibits the same behavior as the old one, so EABI doesn't seem to be the problem, as far as I can tell. I found that I can switch back to my old gcc-3.4.4-glibc-2.3.5 toolchain and compile a static "Hello world" init, and things work fine regardless of which kernel I use (one built with the old [gcc-3.4.4] toolchain or one built with the new [gcc-4.1.0] toolchain). But building init with the new toolchain produces a non-working system, also regardless of which kernel I use. Now I'm at a loss where to look next; since nothing seems to happen with my static init, I can't really tell where the problem lies (bad glibc, FP problem, or whatever). Does anyone have a suggestion on what else I can do to narrow this down? Or even better, has anyone else bumped into this pre-init hang with a gcc-4.1.0-glibc-2.4 toolchain and found that something else needs to be done for things to work? FYI, I tried this same procedure with CodeSourcery's 2006q1 toolchain (with CONFIG_AEABI enabled), and it doesn't work either, so I think I'm just missing something else that needs to change when moving to GCC4, or to NPTL, or something like that. Any help is appreciated, thanks! -- Matthew L. Creech -- For unsubscribe information see http://sourceware.org/lists.html#faq
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