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Fri, 7 Feb 2025 05:22:03 +0000 Received: from PH7PR11MB7608.namprd11.prod.outlook.com ([fe80::ef64:bc9f:eb8c:e6e]) by PH7PR11MB7608.namprd11.prod.outlook.com ([fe80::ef64:bc9f:eb8c:e6e%6]) with mapi id 15.20.8422.010; Fri, 7 Feb 2025 05:22:03 +0000 Content-Type: multipart/alternative; boundary="------------wSO0PrOLzIAbN6fOyrvEU42W" Message-ID: Date: Fri, 7 Feb 2025 13:21:58 +0800 User-Agent: Mozilla Thunderbird Subject: Re: [OE-core] [PATCH 2/9] multilib_header.bbclass: need multilib headers for nativesdk builds To: richard.purdie@linuxfoundation.org, ross.burton@arm.com, "hongxu.jia@eng.windriver.com" Cc: "openembedded-core@lists.openembedded.org" References: <20250121085526.1370937-1-hongxu.jia@windriver.com> <20250121085526.1370937-2-hongxu.jia@windriver.com> <3AEDB7FD-6C36-4B80-9E24-0030B4A54E47@arm.com> Content-Language: en-US From: Hongxu Jia In-Reply-To: X-ClientProxiedBy: TYCP286CA0113.JPNP286.PROD.OUTLOOK.COM (2603:1096:400:29c::10) To PH7PR11MB7608.namprd11.prod.outlook.com (2603:10b6:510:269::20) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PH7PR11MB7608:EE_|SJ0PR11MB5102:EE_ X-MS-Office365-Filtering-Correlation-Id: 23349bdb-fef2-40a3-65d8-08dd47375b0d X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|366016|4022899009|1800799024|8096899003|13003099007; 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Fri, 07 Feb 2025 05:22:10 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/210968 --------------wSO0PrOLzIAbN6fOyrvEU42W Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by mx0a-0064b401.pphosted.com id 5175Aqpg002595 Sorry for replying late, I am just back from the vacation On 2/6/25 15:39, Richard Purdie via lists.openembedded.org wrote: > CAUTION: This email comes from a non Wind River email account! > Do not click links or open attachments unless you recognize the sender = and know the content is safe. > > On Wed, 2025-01-29 at 16:58 +0000, Ross Burton via > lists.openembedded.org wrote: >> On 21 Jan 2025, at 08:55, hongxu via lists.openembedded.org >> wrote: >>> The nativesdk multilib support required it to fix multilib headers >>> conflict >> So the context here is that luajit apparently needs to be able to >> build native code with the same word size as the target. But this >> demonstrates nicely that nobody has tried to build a 32-bit luajit on >> a 64-bit non-x86 machine, for example: >> >>> gcc: error: unrecognized command-line option =E2=80=98-m32=E2=80=99 >> So if the goal is =E2=80=9Cbuild luajit everywhere=E2=80=9D then this = doesn=E2=80=99t solve >> that problem. > I've been giving this a lot of. Part of me does like this solution but > equally, it is complicating something which is already quite complex > for a comparatively isolated problem. As Ross mentions, it only fixes > this for a small subsection there too, it isn't a universal fix. > > Some of the patches in the series are simple/trivial but others have > what looks like quite fragile logic (e.g. the libgcc paths). > > I'm not convinced merging this and trying to support multilib > nativesdk-gcc is in our best interests unfortunately. Agree with you, follow your suggestion, I will drop libgcc patches to=20 supportmultilib nativesdk-gcc and pick up the simple/trivial patches from the series and resend them=20 in v2, including: =C2=A0[OE-core] [PATCH 3/9] toolchain-shar-relocate.sh: support multiple= =20 dynamic loaders for multilib =C2=A0[OE-core] [PATCH 4/9] script/relocate_sdk.py: check dynamic loader= =20 arch before relocating interpreter //Hongxu > Cheers, > > Richard > > > -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D- > Links: You receive all messages sent to this group. > View/Reply Online (#210907):https://lists.openembedded.org/g/openembedd= ed-core/message/210907 > Mute This Topic:https://lists.openembedded.org/mt/110730419/3617049 > Group Owner:openembedded-core+owner@lists.openembedded.org > Unsubscribe:https://lists.openembedded.org/g/openembedded-core/unsub [= hongxu.jia@eng.windriver.com] > -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D- > --------------wSO0PrOLzIAbN6fOyrvEU42W Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by mx0a-0064b401.pphosted.com id 5175Aqpg002595
Sorry for replying late, I am just bac= k from the vacation

On 2/6/25 15:39, Richard Purdie via lists.openembedded.org wrote:
CAUTION: This email comes fr=
om a non Wind River email account!
Do not click links or open attachments unless you recognize the sender an=
d know the content is safe.

On Wed, 2025-01-29 at 16:58 +0000, Ross Burton via
lists.openembedded.org wrote:

On 21 Jan 2025, at 08:55, =
hongxu via lists.openembedded.org
<hongxu.jia=3Deng.windriver.com@lists.=
openembedded.org> wrote:

The nativesdk multilib s=
upport required it to fix multilib headers
conflict

So the context here is that luajit apparently needs to be able to
build native code with the same word size as the target.  But this
demonstrates nicely that nobody has tried to build a 32-bit luajit on
a 64-bit non-x86 machine, for example:


gcc: error: unrecognized=
 command-line option =E2=80=98-m32=E2=80=99

So if the goal is =E2=80=9Cbuild luajit everywhere=E2=80=9D then this doe=
sn=E2=80=99t solve
that problem.

I've been giving this a lot of. Part of me does like this solution but
equally, it is complicating something which is already quite complex
for a comparatively isolated problem. As Ross mentions, it only fixes
this for a small subsection there too, it isn't a universal fix.

Some of the patches in the series are simple/trivial but others have
what looks like quite fragile logic (e.g. the libgcc paths).

I'm not convinced merging this and trying to support multilib
nativesdk-gcc is in our best interests unfortunately.

Agree with you, follow your suggestion, I will drop libgcc patches to support multilib n= ativesdk-gcc

and pick up the simple/trivial patches from the series and resend them in v2, including:

 [OE-core] [PATCH 3/9] toolchain-shar-relocate.sh: support multiple dynamic loaders for multilib
 [OE-core] [PATCH 4/9] script/relocate_sdk.py: check dynamic loader arch before relocating interpreter

//Hongxu

Cheers,

Richard



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