Date: Thu, 21 Apr 2011 19:11:16 +0200 From: Damjan Marion <damjan.marion@gmail.com> To: freebsd-toolchain@freebsd.org, freebsd-arm@freebsd.org Cc: Ben Gray <ben.r.gray@gmail.com> Subject: kernel cross-compiled with clang for ARM architecture Message-ID: <77B4B008-D5A6-48A7-BAF9-E5084BF098DA@gmail.com>
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Hi, I managed to cross-compile latest -CURRENT + Ben's patches with clang and compiled kernel boots on pandaboard. Pandaboard support is still work in progress, but clang compiled kernel boots up to the same point like gcc version. I used latest clang/llvm from svn with following: CC="/opt/llvm/bin/clang -mcpu=cortex-a9 -ccc-host-triple arm-unknown-freebsd -mfloat-abi=soft" WERROR="" This works both on FreeBSD and Mac OS X host. Issues: - integrated assembler for ARM doesn't work properly ( I filled bugs [1] and [2]) - gnu as works ok but newer version of binutils is needed which supports ARMv7 instructions - i had to patch [3] clang to invoke cross linker properly (thanks to guys form #freebsd-clang ) Regards, Damjan [1] http://llvm.org/bugs/show_bug.cgi?id=9760 [2] http://llvm.org/bugs/show_bug.cgi?id=9762 [3] http://llvm.org/bugs/show_bug.cgi?id=9777help
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