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Re: clang build error on i686
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From: |
Philippe Mathieu-Daudé |
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Subject: |
Re: clang build error on i686 |
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Date: |
Sat, 3 Jul 2021 18:25:51 +0200 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 |
On 7/3/21 4:34 PM, Cole Robinson wrote:
> Hi, I'm hitting build errors with clang on i686 userspace on x86_64
> kernel. Affects both qemu 6.0.0 and qemu.git, tested with fedora
> clang-12.0.1~rc3-1.fc35.i686.
>
> Full build log from the 6.0.0 build:
> https://gist.githubusercontent.com/crobinso/7b1206044eac7326490b2adce829e861/raw/9dddef968051fd6383ba7adb9e595081ad4f8fa4/gistfile1.txt
>
> Lots of errors like:
>
> /usr/bin/ld: libqemu-aarch64-softmmu.fa.p/accel_tcg_cputlb.c.o: in
> function `helper_atomic_cmpxchgq_le_mmu':
> /builddir/build/BUILD/qemu-6.0.0/accel/tcg/atomic_template.h:86:
> undefined reference to `__atomic_compare_exchange_8'
> /usr/bin/ld: libqemu-aarch64-softmmu.fa.p/accel_tcg_cputlb.c.o: in
> function `helper_atomic_xchgq_le_mmu':
> /builddir/build/BUILD/qemu-6.0.0/accel/tcg/atomic_template.h:134:
> undefined reference to `__atomic_exchange_8'
Marc-André reported this one recently:
https://www.mail-archive.com/qemu-devel@nongnu.org/msg814163.html
Peter once replied smth related:
https://lists.gnu.org/archive/html/qemu-devel/2018-01/msg02103.html