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Re: [Qemu-devel] [RFC PATCH v5 4/6] module: implement module loading fun
From: |
Richard Henderson |
Subject: |
Re: [Qemu-devel] [RFC PATCH v5 4/6] module: implement module loading function |
Date: |
Wed, 11 Sep 2013 08:43:16 -0700 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130805 Thunderbird/17.0.8 |
On 09/11/2013 08:23 AM, Alex Bligh wrote:
>> But it does suggest the default being DT_RUNPATH, overridable "near"
>> the command-line via LD_RUN_PATH.
>
> Not quite sure what you are suggesting here. DT_RUNPATH is an elf
> tag IIRC. Not sure what LD_RUN_PATH does. LD_LIBRARY_PATH affects
> more than just this.
LD_RUN_PATH was my thinko -- LD_LIBRARY_PATH was what I was thinking.
And while it does affect more than this, if set specifically for the
qemu executable e.g. by a script then it need not really affect much.
> If we are using the dynamic linker and DT_RUNPATH (which I believe
> is in the executable) or the normal paths we WILL NEED proper API
> versioning etc.; in this case (in the distro example I pulled out),
> an upgrade to qemu making an API change will have different API
> versioned libs and these can happily coexist, so no need for directories.
I don't believe I ever suggested we're stable, or should even pretend
to be so at this point.
Install multiple qemu to different trees, and use different paths.
Or even use the $ORIGIN prefix, which allows paths relative to the
main executable, allowing the installed qemu tree to be moved at
its root.
r~
[Qemu-devel] [RFC PATCH v5 5/6] configure: introduce --enable-modules, Fam Zheng, 2013/09/11
- Re: [Qemu-devel] [RFC PATCH v5 5/6] configure: introduce --enable-modules, Paolo Bonzini, 2013/09/11
- Re: [Qemu-devel] [RFC PATCH v5 5/6] configure: introduce --enable-modules, Paolo Bonzini, 2013/09/11
- Re: [Qemu-devel] [RFC PATCH v5 5/6] configure: introduce --enable-modules, Gerd Hoffmann, 2013/09/11
- Re: [Qemu-devel] [RFC PATCH v5 5/6] configure: introduce --enable-modules, Fam Zheng, 2013/09/11
- Re: [Qemu-devel] [RFC PATCH v5 5/6] configure: introduce --enable-modules, Peter Maydell, 2013/09/11
- Re: [Qemu-devel] [RFC PATCH v5 5/6] configure: introduce --enable-modules, Gerd Hoffmann, 2013/09/11
- Re: [Qemu-devel] [RFC PATCH v5 5/6] configure: introduce --enable-modules, Peter Maydell, 2013/09/11