GNU bug report logs -
#44445
json-c cross-build fails from x86-64 to armhf
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bug#44445
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(Wed, 04 Nov 2020 15:45:02 GMT)
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(Wed, 04 Nov 2020 15:45:02 GMT)
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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):
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I'm trying to build a guix system for my banana pi m2u, but json-c fails
to cross-build.
~$ guix describe
Generation 319 Nov 04 2020 06:41:25 (current)
guix 3d67269
repository URL: https://git.savannah.gnu.org/git/guix.git
branch: master
commit: 3d67269ee787c8624bafdd68df9fbf7eedd8eb1e
~$ guix build --system=armhf-linux json-c
...
command "cmake" "../json-c-0.14" "-DCMAKE_BUILD_TYPE=RelWithDebInfo"
"-DCMAKE_INSTALL_PREFIX=/gnu/store/yqaw63n8wmg7f2ncc24019z87m5cwhim-json-c-0.14"
"-DCMAKE_INSTALL_LIBDIR=lib" "-DCMAKE_INSTALL_RPATH_USE_LINK_PATH=TRUE"
"-DCMAKE_INSTALL_RPATH=/gnu/store/yqaw63n8wmg7f2ncc24019z87m5cwhim-json-c-0.14/lib"
"-DCMAKE_VERBOSE_MAKEFILE=ON" failed with status 1
builder for
`/gnu/store/m3x5hnlp9d9qmg72a0c7rqlz40yc0x0m-json-c-0.14.drv' failed
with exit code 1
build of /gnu/store/m3x5hnlp9d9qmg72a0c7rqlz40yc0x0m-json-c-0.14.drv failed
View build log at
'/var/log/guix/drvs/m3/x5hnlp9d9qmg72a0c7rqlz40yc0x0m-json-c-0.14.drv.bz2'.
guix build: error: build of
`/gnu/store/m3x5hnlp9d9qmg72a0c7rqlz40yc0x0m-json-c-0.14.drv' failed
Log attached.
[x5hnlp9d9qmg72a0c7rqlz40yc0x0m-json-c-0.14.drv.bz2 (application/octet-stream, attachment)]
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bug#44445
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(Wed, 04 Nov 2020 16:48:02 GMT)
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Message #8 received at 44445 <at> debbugs.gnu.org (full text, mbox):
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Are you really using a cross-compiler or are you using qemu transparent emulation?
If the latter, this is a known problem, see bug# 43513.
Right now, I wouldn't use qemu transparent emulation in order to build anything
for systems where the register width of guest and Linux kernel is different.
If you are lucky, the build fails. If you are unlucky, the build succeeds but
is subtly broken.
(I tried to fix that on core-updates, but core-updates without any changes
already doesn't work--so I gave up)
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bug#44445
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(Fri, 06 Nov 2020 10:02:02 GMT)
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Message #11 received at 44445 <at> debbugs.gnu.org (full text, mbox):
Hi,
Jesse Gibbons <jgibbons2357 <at> gmail.com> skribis:
> ~$ guix build --system=armhf-linux json-c
Like Danny hinted, this is *not* cross-compilation: this is native
compilation on ARMv7. It works because either you’ve set up offloading
to an actual ARMv7 machine, or you’ve set up transparent QEMU emulation.
In the latter case, you may encounter issues like those Danny mentions.
Thanks,
Ludo’.
Reply sent
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Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
:
You have taken responsibility.
(Fri, 27 Aug 2021 19:44:02 GMT)
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Jesse Gibbons <jgibbons2357 <at> gmail.com>
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bug acknowledged by developer.
(Fri, 27 Aug 2021 19:44:02 GMT)
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Message #16 received at 44445-done <at> debbugs.gnu.org (full text, mbox):
Hello,
Jesse Gibbons <jgibbons2357 <at> gmail.com> writes:
> I'm trying to build a guix system for my banana pi m2u, but json-c
> fails to cross-build.
>
> ~$ guix describe
> Generation 319 Nov 04 2020 06:41:25 (current)
> guix 3d67269
> repository URL: https://git.savannah.gnu.org/git/guix.git
> branch: master
> commit: 3d67269ee787c8624bafdd68df9fbf7eedd8eb1e
>
> ~$ guix build --system=armhf-linux json-c
> ...
> command "cmake" "../json-c-0.14" "-DCMAKE_BUILD_TYPE=RelWithDebInfo"
> "-DCMAKE_INSTALL_PREFIX=/gnu/store/yqaw63n8wmg7f2ncc24019z87m5cwhim-json-c-0.14"
> "-DCMAKE_INSTALL_LIBDIR=lib"
> "-DCMAKE_INSTALL_RPATH_USE_LINK_PATH=TRUE"
> "-DCMAKE_INSTALL_RPATH=/gnu/store/yqaw63n8wmg7f2ncc24019z87m5cwhim-json-c-0.14/lib"
> "-DCMAKE_VERBOSE_MAKEFILE=ON" failed with status 1
> builder for
> `/gnu/store/m3x5hnlp9d9qmg72a0c7rqlz40yc0x0m-json-c-0.14.drv' failed
> with exit code 1
> build of /gnu/store/m3x5hnlp9d9qmg72a0c7rqlz40yc0x0m-json-c-0.14.drv failed
> View build log at
> '/var/log/guix/drvs/m3/x5hnlp9d9qmg72a0c7rqlz40yc0x0m-json-c-0.14.drv.bz2'.
> guix build: error: build of
> `/gnu/store/m3x5hnlp9d9qmg72a0c7rqlz40yc0x0m-json-c-0.14.drv' failed
>
>
> Log attached.
As others have said, it looks like you used a native system here (via
offloading/QEMU user emulation) or both. QEMU has limitations that
often causes run time failure, such as during the test suites.
There are substitutes for json-c for both the aarch64-linux and
arm-linux systems, and cross-compiling tested fine as well too:
$ guix build json-c --target=arm-linux-gnueabihf
/gnu/store/dmcii1kjf7035gfn8rg5xws3an7avffl-json-c-0.14
$ guix build json-c --target=aarch64-linux-gnu
/gnu/store/7y20nqvp19254picqa0l345lklf4zih1-json-c-0.14
Closing,
Maxim
bug archived.
Request was from
Debbugs Internal Request <help-debbugs <at> gnu.org>
to
internal_control <at> debbugs.gnu.org
.
(Sat, 25 Sep 2021 11:24:06 GMT)
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This bug report was last modified 2 years and 207 days ago.
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