Does Linaro GCC 5.4 fully support ARMv8.2-A

Discussion:

Vincent Chen

2017-10-17 18:31:21 UTC

Hi,

We are evaluating LInaro GCC5.4 readiness for ARMv8.2-A extension support but can't find direct answer if all the features has been supported/backported.

Can you point me to the answer?

Thanks,
Vincent

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Christophe Lyon

2017-10-18 09:36:06 UTC

Permalink

Hi Vincent,

We have backported ARMv8.2 support to our gcc-linaro-6 branch, so gcc
5.4 does not support ARMv8.2-A. You have to use gcc-linaro-6 or more
recent.

Christophe

Post by Vincent Chen
Hi,
We are evaluating LInaro GCC5.4 readiness for ARMv8.2-A extension support but can't find direct answer if all the features has been supported/backported.
Can you point me to the answer?
Thanks,
Vincent
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Vincent Chen

2017-10-18 18:34:50 UTC

Permalink

Thanks Christophe. In terms of Linaro GCC6.4 how long the supported life cycle is?

-----Original Message-----
From: Christophe Lyon [mailto:***@linaro.org]
Sent: Wednesday, October 18, 2017 2:36 AM
To: Vincent Chen <***@nvidia.com>
Cc: linaro-***@lists.linaro.org
Subject: Re: Does Linaro GCC 5.4 fully support ARMv8.2-A

Hi Vincent,

We have backported ARMv8.2 support to our gcc-linaro-6 branch, so gcc
5.4 does not support ARMv8.2-A. You have to use gcc-linaro-6 or more recent.

Christophe

Post by Vincent Chen
Hi,
We are evaluating LInaro GCC5.4 readiness for ARMv8.2-A extension support but can't find direct answer if all the features has been supported/backported.
Can you point me to the answer?
Thanks,
Vincent
----------------------------------------------------------------------
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recipient(s) and may contain confidential information. Any
unauthorized review, use, disclosure or distribution is prohibited.
If you are not the intended recipient, please contact the sender by
reply email and destroy all copies of the original message.
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Christophe Lyon

2017-10-19 08:46:53 UTC

Permalink

We track FSF branches as follows: when a new release branch 'N' is
available, we switch our active releases to it.

Branch N-1 goes to maintenance mode, and branch N-2 goes to
best-effort/as-needed until the branch is closed on the FSF side.

As of today, this means that:
- gcc-linaro-7 is our active release branch. We provide quarterly
binary releases, and monthly source snapshots. We do monthly
branch-merges and backport interesting patches from trunk.
- gcc-linaro-6 is in maintenance mode. We provide quarterly binary
releases and monthly source snapshots. We do monthly branch-merges.
- gcc-linaro-5 is in "as-needed" mode. We provide binary releases when
needed. In practice, we are in the process of creating our final
gcc-linaro-5, since the FSF gcc-5 branch was closed recently with the
gcc-5.5 release.

All this will shift when the FSF releases gcc-8 (probably in April or
May 2018), which probably means we'll have our final gcc-linaro-6
release in about a year from now. However we are currently modifying
our release process, so don't take this for granted.

Christophe

Post by Vincent Chen
Thanks Christophe. In terms of Linaro GCC6.4 how long the supported life cycle is?
-----Original Message-----
Sent: Wednesday, October 18, 2017 2:36 AM
Subject: Re: Does Linaro GCC 5.4 fully support ARMv8.2-A
Hi Vincent,
We have backported ARMv8.2 support to our gcc-linaro-6 branch, so gcc
5.4 does not support ARMv8.2-A. You have to use gcc-linaro-6 or more recent.
Christophe

Post by Vincent Chen
Hi,
We are evaluating LInaro GCC5.4 readiness for ARMv8.2-A extension support but can't find direct answer if all the features has been supported/backported.
Can you point me to the answer?
Thanks,
Vincent
----------------------------------------------------------------------
------------- This email message is for the sole use of the intended
recipient(s) and may contain confidential information. Any
unauthorized review, use, disclosure or distribution is prohibited.
If you are not the intended recipient, please contact the sender by
reply email and destroy all copies of the original message.
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Vincent Chen

2017-10-23 20:32:21 UTC

Permalink

Thanks for the information, it's very useful. Is there any mail list I can register myself to receive future update about toolchain?

-----Original Message-----
From: Christophe Lyon [mailto:***@linaro.org]
Sent: Thursday, October 19, 2017 1:47 AM
To: Vincent Chen <***@nvidia.com>
Cc: linaro-***@lists.linaro.org
Subject: Re: Does Linaro GCC 5.4 fully support ARMv8.2-A

We track FSF branches as follows: when a new release branch 'N' is available, we switch our active releases to it.

Branch N-1 goes to maintenance mode, and branch N-2 goes to best-effort/as-needed until the branch is closed on the FSF side.

As of today, this means that:
- gcc-linaro-7 is our active release branch. We provide quarterly binary releases, and monthly source snapshots. We do monthly branch-merges and backport interesting patches from trunk.
- gcc-linaro-6 is in maintenance mode. We provide quarterly binary releases and monthly source snapshots. We do monthly branch-merges.
- gcc-linaro-5 is in "as-needed" mode. We provide binary releases when needed. In practice, we are in the process of creating our final gcc-linaro-5, since the FSF gcc-5 branch was closed recently with the
gcc-5.5 release.

All this will shift when the FSF releases gcc-8 (probably in April or May 2018), which probably means we'll have our final gcc-linaro-6 release in about a year from now. However we are currently modifying our release process, so don't take this for granted.

Christophe

Post by Vincent Chen
Hi,
We are evaluating LInaro GCC5.4 readiness for ARMv8.2-A extension support but can't find direct answer if all the features has been supported/backported.
Can you point me to the answer?
Thanks,
Vincent
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------------- This email message is for the sole use of the intended
recipient(s) and may contain confidential information. Any
unauthorized review, use, disclosure or distribution is prohibited.
If you are not the intended recipient, please contact the sender by
reply email and destroy all copies of the original message.
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Christophe Lyon

2017-10-24 08:25:06 UTC

Permalink

We announce new snapshots/releases on this mailing-list, so you should
subscribe.

You can have a look at the archives:
https://lists.linaro.org/pipermail/linaro-toolchain/

Christophe

Post by Vincent Chen
Thanks for the information, it's very useful. Is there any mail list I can register myself to receive future update about toolchain?
-----Original Message-----
Sent: Thursday, October 19, 2017 1:47 AM
Subject: Re: Does Linaro GCC 5.4 fully support ARMv8.2-A
We track FSF branches as follows: when a new release branch 'N' is available, we switch our active releases to it.
Branch N-1 goes to maintenance mode, and branch N-2 goes to best-effort/as-needed until the branch is closed on the FSF side.
- gcc-linaro-7 is our active release branch. We provide quarterly binary releases, and monthly source snapshots. We do monthly branch-merges and backport interesting patches from trunk.
- gcc-linaro-6 is in maintenance mode. We provide quarterly binary releases and monthly source snapshots. We do monthly branch-merges.
- gcc-linaro-5 is in "as-needed" mode. We provide binary releases when needed. In practice, we are in the process of creating our final gcc-linaro-5, since the FSF gcc-5 branch was closed recently with the
gcc-5.5 release.
All this will shift when the FSF releases gcc-8 (probably in April or May 2018), which probably means we'll have our final gcc-linaro-6 release in about a year from now. However we are currently modifying our release process, so don't take this for granted.
Christophe

Post by Vincent Chen
Hi,
We are evaluating LInaro GCC5.4 readiness for ARMv8.2-A extension support but can't find direct answer if all the features has been supported/backported.
Can you point me to the answer?
Thanks,
Vincent
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------------- This email message is for the sole use of the intended
recipient(s) and may contain confidential information. Any
unauthorized review, use, disclosure or distribution is prohibited.
If you are not the intended recipient, please contact the sender by
reply email and destroy all copies of the original message.
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Vincent Chen

2017-10-24 18:08:08 UTC

Permalink

Awesome. Thanks

-----Original Message-----
From: Christophe Lyon [mailto:***@linaro.org]
Sent: Tuesday, October 24, 2017 1:25 AM
To: Vincent Chen <***@nvidia.com>
Cc: linaro-***@lists.linaro.org
Subject: Re: Does Linaro GCC 5.4 fully support ARMv8.2-A

We announce new snapshots/releases on this mailing-list, so you should subscribe.

You can have a look at the archives:
https://lists.linaro.org/pipermail/linaro-toolchain/

Christophe

Post by Vincent Chen
Thanks for the information, it's very useful. Is there any mail list I can register myself to receive future update about toolchain?
-----Original Message-----
Sent: Thursday, October 19, 2017 1:47 AM
Subject: Re: Does Linaro GCC 5.4 fully support ARMv8.2-A
We track FSF branches as follows: when a new release branch 'N' is available, we switch our active releases to it.
Branch N-1 goes to maintenance mode, and branch N-2 goes to best-effort/as-needed until the branch is closed on the FSF side.
- gcc-linaro-7 is our active release branch. We provide quarterly binary releases, and monthly source snapshots. We do monthly branch-merges and backport interesting patches from trunk.
- gcc-linaro-6 is in maintenance mode. We provide quarterly binary releases and monthly source snapshots. We do monthly branch-merges.
- gcc-linaro-5 is in "as-needed" mode. We provide binary releases when
needed. In practice, we are in the process of creating our final
gcc-linaro-5, since the FSF gcc-5 branch was closed recently with the
gcc-5.5 release.
All this will shift when the FSF releases gcc-8 (probably in April or May 2018), which probably means we'll have our final gcc-linaro-6 release in about a year from now. However we are currently modifying our release process, so don't take this for granted.
Christophe

Post by Vincent Chen
Hi,
We are evaluating LInaro GCC5.4 readiness for ARMv8.2-A extension support but can't find direct answer if all the features has been supported/backported.
Can you point me to the answer?
Thanks,
Vincent
--------------------------------------------------------------------
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------------- This email message is for the sole use of the intended
recipient(s) and may contain confidential information. Any
unauthorized review, use, disclosure or distribution is prohibited.
If you are not the intended recipient, please contact the sender by
reply email and destroy all copies of the original message.
--------------------------------------------------------------------
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