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Groups > linux.kernel > #1409315
| From | Arend van Spriel <arend.vanspriel@broadcom.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: building and using modules on arm64 hikey board |
| Date | 2016-05-30 21:00 +0200 |
| Message-ID | <rEAzU-83V-21@gated-at.bofh.it> (permalink) |
| References | <rEsCm-2SM-7@gated-at.bofh.it> <rEtI5-3A2-7@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On 30-05-16 13:30, Ard Biesheuvel wrote: > This is likely caused by the fact that the Android AArch64 toolchain uses -fpic by default. Could you try adding -fno-pic to the CFLAGS? I did only to notice with 'make V=1 ...' that it was already used hence showing up in the compile command line twice. To no avail so that ain't working. Regards, Arend >> On 30 mei 2016, at 12:21, Arend Van Spriel <arend.vanspriel@broadcom.com> wrote: >> >> I got myself an arm64 HiKey board from LeMaker and build an Android AOSP >> image for it (see [1]). For development I would like to use >> CONFIG_MODULES. However, when I try to insmod the build module I get: >> >> [ 287.903653] module cfg80211: overflow in relocation type 261 val >> ffffffbffc006530 >> >> Looking AArch64 ELF documentation [2], section 4.6.5, it has: >> code|name |operation |overflow check | >> 261 |R_AARCH64_PREL32|S + A - P |-2^31 <= X < 2^32| >> >> So basically the highest 32 bits should all be one and so ffffffbf is >> invalid. From what I could find searching internet it could be an issue >> with linker options so I build kernel and modules with V=1. Here the >> linker invocation for them: >> >> + aarch64-linux-android-ld -EL -p --no-undefined -X --build-id -o vmlinux \ >> -T ./arch/arm64/kernel/vmlinux.lds arch/arm64/kernel/head.o >> init/built-in.o \ >> --start-group usr/built-in.o arch/arm64/kernel/built-in.o >> arch/arm64/mm/built-in.o \ >> arch/arm64/net/built-in.o arch/arm64/kvm/built-in.o >> arch/arm64/crypto/built-in.o \ >> ./drivers/firmware/efi/libstub/lib.a kernel/built-in.o certs/built-in.o >> mm/built-in.o \ >> fs/built-in.o ipc/built-in.o security/built-in.o crypto/built-in.o >> block/built-in.o \ >> arch/arm64/lib/lib.a lib/lib.a arch/arm64/lib/built-in.o lib/built-in.o >> drivers/built-in.o \ >> sound/built-in.o firmware/built-in.o net/built-in.o virt/built-in.o >> --end-group .tmp_kallsyms2.o >> >> aarch64-linux-android-ld -EL -r -T ./scripts/module-common.lds >> --build-id \ >> -o net/wireless/cfg80211.ko net/wireless/cfg80211.o >> net/wireless/cfg80211.mod.o >> >> Attached are vmlinux.lds and module-common.lds. I also tried taking >> upstream arch/arm64/kernel/module.lds in hikey-linaro tree. If someone >> can give a hint or educated guess at what to try it would be appreciated. >> >> Regards, >> Arend >> >> [1] https://source.android.com/source/devices.html#building-kernel >> [2] >> http://infocenter.arm.com/help/topic/com.arm.doc.ihi0056b/IHI0056B_aaelf64.pdf >> <module-common.lds> >> <vmlinux.lds>
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Re: building and using modules on arm64 hikey board Ard Biesheuvel <ard.biesheuvel@linaro.org> - 2016-05-30 13:40 +0200
Re: building and using modules on arm64 hikey board Arend van Spriel <arend.vanspriel@broadcom.com> - 2016-05-30 21:00 +0200
Re: building and using modules on arm64 hikey board Jisheng Zhang <jszhang@marvell.com> - 2016-05-31 04:00 +0200
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