[Buildroot] [Bug 15356] New: package gobject-introspection-1.72.0 fails to build

[Buildroot] [Bug 15356] New: package gobject-introspection-1.72.0 fails to build

[bugzilla]

https://bugs.busybox.net/show_bug.cgi?id=15356

            Bug ID: 15356
           Summary: package gobject-introspection-1.72.0 fails to build
           Product: buildroot
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P5
         Component: Other
          Assignee: unassigned@buildroot.uclibc.org
          Reporter: hydrosaure@gmail.com
                CC: buildroot@uclibc.org
  Target Milestone: ---

Hello,

When building with target architecture "x86_64" and setting an architecture
variant as anything other than "x86_64" ie. "haswell" or "broadwell", package
"gobject-introspection" fails to build and ends erroring out with messages
like:

qemu: uncaught target signal 4 (Illegal instruction) - core dumped
Illegal instruction (core dumped)

Many examples of this error can be found on the buildbot at
http://autobuild.buildroot.org/?arch=x86_64&reason=gobject-introspection-1.72.0&step=50&start=0
and checking out endlog data.

When building with target architecture "x86_64" and architecture variant 
"x86_64" it completes correctly.

Could it be there is some confusion between host and target for the wrapper
commands?

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[Buildroot] [Bug 15356] package gobject-introspection-1.72.0 fails to build

[bugzilla]

https://bugs.busybox.net/show_bug.cgi?id=15356

--- Comment #1 from Jonathan Bittner <jbittner.br.bugs@gmail.com> ---
gobject-introspection tries to build some of its code inside a qemu
environment.  Selecting an "advanced" x86_64 architecture produces some
instructions that qemu does not understand.  I'm not sure if a -cpu mode flag
could be set on qemu to enable those instructions.

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[Buildroot] [Bug 15356] package gobject-introspection-1.72.0 fails to build

[bugzilla]

https://bugs.busybox.net/show_bug.cgi?id=15356

--- Comment #2 from Jonathan Bittner <jbittner.br.bugs@gmail.com> ---
from experimenting with an image with cpu flags set to x86_64/slivermont on a
i9-9900 machine, setting "-cpu max" for qemu takes advantage of all
instructions available to the host processor and would likely fix your issue
assuming your host is at least as modern as your target architecture

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[Buildroot] [Bug 15356] package gobject-introspection-1.72.0 fails to build

[bugzilla]

https://bugs.busybox.net/show_bug.cgi?id=15356

--- Comment #3 from hydrosaure@gmail.com ---
(In reply to Jonathan Bittner from comment #2)
Thank you for the investigation. I think it would work in my case as well
building on a R9 5950X targeting i7 broadwell.

Which file would I add this "-cpu max" to ?

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[Buildroot] [Bug 15356] package gobject-introspection-1.72.0 fails to build

[bugzilla]

https://bugs.busybox.net/show_bug.cgi?id=15356

--- Comment #4 from James Hilliard <james.hilliard1@gmail.com> ---
FYI I have a series bumping gobject-introspection and libglib2 to version
1.74.0, I wonder if that might be helpful here:

https://patchwork.ozlabs.org/project/buildroot/list/?series=321845&submitter=&state=*&q=&archive=both&delegate=

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