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Re: [Qemu-devel] [PATCH v2 5/5] Convert single line fprintf() to warn_re
From: |
Markus Armbruster |
Subject: |
Re: [Qemu-devel] [PATCH v2 5/5] Convert single line fprintf() to warn_report() |
Date: |
Thu, 17 Aug 2017 19:02:06 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/25.2 (gnu/linux) |
Paolo Bonzini <address@hidden> writes:
> On 15/08/2017 09:30, Markus Armbruster wrote:
>> The stupid fix is to repeat libraries until the link succeeds:
>>
>> test-util-obj-y = libqemuutil.a libqemustub.a libqemuutil.a
>>
>> You may have seen this with -lX11 if you're old enough.
>>
>> ld(1) suggests the linker can do it for us:
>>
>> -( archives -)
>> --start-group archives --end-group
>> The archives should be a list of archive files. They may be either
>> explicit file names, or -l options.
>>
>> The specified archives are searched repeatedly until no new
>> undefined references are created. Normally, an archive is searched
>> only once in the order that it is specified on the command line.
>> If a symbol in that archive is needed to resolve an undefined
>> symbol referred to by an object in an archive that appears later on
>> the command line, the linker would not be able to resolve that
>> reference. By grouping the archives, they all be searched
>> repeatedly until all possible references are resolved.
>>
>> Using this option has a significant performance cost. It is best
>> to use it only when there are unavoidable circular references
>> between two or more archives.
>>
>> Sticking '-Wp,-(' and '-Wp,-)' into the command line I get from make V=1
>> doesn't work for me, though.
>>
>> The smart solution is not to have .a reference each other.
>
> Nah, I think we should teach those new kids on the block about -lX11
> instead. :)
>
>> Paolo, what do you think?
>
> Another possibility is to just merge the two static libraries into one.
Sounds good to me!
- Re: [Qemu-devel] [PATCH v2 5/5] Convert single line fprintf() to warn_report(), Alistair Francis, 2017/08/03
- Re: [Qemu-devel] [PATCH v2 5/5] Convert single line fprintf() to warn_report(), Markus Armbruster, 2017/08/14
- Re: [Qemu-devel] [PATCH v2 5/5] Convert single line fprintf() to warn_report(), Alistair Francis, 2017/08/14
- Re: [Qemu-devel] [PATCH v2 5/5] Convert single line fprintf() to warn_report(), Markus Armbruster, 2017/08/15
- Re: [Qemu-devel] [PATCH v2 5/5] Convert single line fprintf() to warn_report(), Paolo Bonzini, 2017/08/17
- Re: [Qemu-devel] [PATCH v2 5/5] Convert single line fprintf() to warn_report(),
Markus Armbruster <=
- Re: [Qemu-devel] [PATCH v2 5/5] Convert single line fprintf() to warn_report(), Alistair Francis, 2017/08/17
- Re: [Qemu-devel] [PATCH v2 5/5] Convert single line fprintf() to warn_report(), Philippe Mathieu-Daudé, 2017/08/17
- Re: [Qemu-devel] [PATCH v2 5/5] Convert single line fprintf() to warn_report(), Markus Armbruster, 2017/08/18
- Re: [Qemu-devel] [PATCH v2 5/5] Convert single line fprintf() to warn_report(), Alistair Francis, 2017/08/18
- Re: [Qemu-devel] [PATCH v2 5/5] Convert single line fprintf() to warn_report(), Philippe Mathieu-Daudé, 2017/08/18
- Re: [Qemu-devel] [PATCH v2 5/5] Convert single line fprintf() to warn_report(), Philippe Mathieu-Daudé, 2017/08/17