[lttng-dev] Add support for the LOONGARCH architecture

[Mathieu Desnoyers]

Unfortunately, the qemu approach does not help much in testing that the
liburcu implementation works correctly on a given architecture's
specific memory model.

liburcu relies heavily on memory ordering, and liburcu-cds relies on
both memory ordering and atomic operations and the memory ordering
guarantees associated with them.

So if there is any way we could get our hands on real hardware, it
would be very much relevant for liburcu testing.

Thanks,

Mathieu

----- On Jan 24, 2022, at 3:02 AM, 张文龙 zhangwenlong at loongson.cn wrote:

> I'm glad the new architecture can be accepted，At present, our machines are in
> short supply.I need to go through a very complicated process to provide
> machines, Can qemu emulator work?
> 
> 
> > -----原始邮件-----
> > 发件人: "Mathieu Desnoyers" <mathieu.desnoyers at efficios.com>
> > 发送时间: 2022-01-20 23:59:52 (星期四)
> > 收件人: "张文龙" <zhangwenlong at loongson.cn>
> > 抄送: lttng-dev <lttng-dev at lists.lttng.org>
> > 主题: Re: [lttng-dev] Add support for the LOONGARCH architecture
> >
> > ----- On Jan 19, 2022, at 11:03 PM, lttng-dev lttng-dev at lists.lttng.org
> wrote:
> >
> > > Hello, I'm excited to contribute to userspace-rcu, I added loongarch
> > > architecture for userspace-rcu（ The patch file is
> > > 0001-Add-support-for-the-LOONGARCH-architecture.patch )
> >
> > > I have compiled and verified locally (the build log is build_log.txt
> ),and then
> > > i runed make check（ the make check log is make_check_log.txt ）， make
> > > regtest（the make regtest log is make_regtest_log.txt ） ， make
> short_bench (the
> > > make short_bench log is make_short_bench_log.txt ),make long_bench(the
> make
> > > long_bench log is make_long_bench_log.txt )
> >
> > This is great, thanks !
> >
> > By the way, is there any way EfficiOS could add two loongarch test boards
> into
> > our test rack for automated CI testing ? See https://ci.lttng.org
> >
> > We typically deploy at least two boards for each given architecture for
> redundancy
> > and availability for both CI and development use.
> >
> > This would help ensuring we catch liburcu regressions in the loongarch
> architecture
> > in the future.
> >
> > Thanks,
> >
> > Mathieu
> >
> >
> > > 本邮件及其附件含有龙芯中科的商业秘密信息，仅限于发送给上面地址中列出的个人或群组。禁止任何其他人以任何形式使用（包括但不限于全部或部
> > > 分地泄露、复制或散发）本邮件及其附件中的信息。如果您错收本邮件，请您立即电话或邮件通知发件人并删除本邮件。
> > > This email and its attachments contain confidential information from
> Loongson
> > > Technology , which is intended only for the person or entity whose
> address is
> > > listed above. Any use of the information contained herein in any way
> > > (including, but not limited to, total or partial disclosure,
> reproduction or
> > > dissemination) by persons other than the intended recipient(s) is
> prohibited.
> > > If you receive this email in error, please notify the sender by phone
> or email
> > > immediately and delete it.
> > > _______________________________________________
> > > lttng-dev mailing list
> > > lttng-dev at lists.lttng.org
> > > https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
> > --
> > Mathieu Desnoyers
> > EfficiOS Inc.
> > http://www.efficios.com
> </lttng-dev at lists.lttng.org></zhangwenlong at loongson.cn></mathieu.desnoyers at efficios.com>
> 
> 本邮件及其附件含有龙芯中科的商业秘密信息，仅限于发送给上面地址中列出的个人或群组。禁止任何其他人以任何形式使用（包括但不限于全部或部分地泄露、复制或散发）本邮件及其附件中的信息。如果您错收本邮件，请您立即电话或邮件通知发件人并删除本邮件。
> This email and its attachments contain confidential information from Loongson
> Technology , which is intended only for the person or entity whose address is
> listed above. Any use of the information contained herein in any way
> (including, but not limited to, total or partial disclosure, reproduction or
> dissemination) by persons other than the intended recipient(s) is prohibited.
> If you receive this email in error, please notify the sender by phone or email
> immediately and delete it.

-- 
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com