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Hermes SMTP Server) with ESMTPA ID e8e496810bd251cd28f0700eba45e041; Sun, 13 Aug 2023 22:12:01 +0000 (UTC) Content-Type: text/plain; charset=utf-8 List-Id: Discussions about the use of FreeBSD-current List-Archive: https://lists.freebsd.org/archives/freebsd-current List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-current@freebsd.org Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3731.700.6\)) Subject: Re: Error crosscompiling 14.0-ALPHA1 on amd64 for arm64.aarch64 From: Mark Millard In-Reply-To: Date: Sun, 13 Aug 2023 15:11:48 -0700 Cc: Mike Karels , FreeBSD Toolchain , Current FreeBSD Content-Transfer-Encoding: quoted-printable Message-Id: References: <3B0BBEB1-D16C-405A-B2FA-F53022CFC925.ref@yahoo.com> <3B0BBEB1-D16C-405A-B2FA-F53022CFC925@yahoo.com> <3AE647E3-B988-4387-BF56-A2DB6533B5FD@FreeBSD.org> <3C630E2F-959E-46BC-8DAE-DA19C3A6912E@yahoo.com> To: Juraj Lutter X-Mailer: Apple Mail (2.3731.700.6) X-Rspamd-Queue-Id: 4RPBb95X46z4Rf2 X-Spamd-Bar: ---- X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:36647, ipnet:98.137.64.0/20, country:US] On Aug 13, 2023, at 14:37, Juraj Lutter wrote: > On 13 Aug 2023, at 23:13, Mark Millard wrote: >>=20 >> On Aug 13, 2023, at 14:01, Mark Millard wrote: >>=20 >>> On Aug 13, 2023, at 13:19, Juraj Lutter wrote: >>>=20 >>>>> On 13 Aug 2023, at 21:13, Mark Millard wrote: >>>>>=20 >>>>> But the offical CI builds on amd64 do not have the problem. >>>>>=20 >>>>> We still have not found what is different about your context from = the >>>>> standard context used for CI builds and snapshot builds, all of = which >>>>> have worked find building on amd64 to target aarch64 with armv7 = support. >>>>=20 >>>> My src.conf: >>>>=20 >>>> WITHOUT_PROFILE=3Dyes >>>> WITHOUT_TESTS=3Dyes >>>> WITHOUT_STATIC=3Dyes >>>>=20 >>>> WITHOUT_LLVM_TARGET_ALL=3Dyes >>>=20 >>> Starting below this is wrong presuming all >>> builds are actually done on amd64: >>>=20 >>>> .if "${TARGET}" =3D=3D "arm64" && "${TARGET_ARCH}" =3D=3D "aarch64" >>>> KERNCONF?=3DGENERIC-MMCCAM >>>> REPODIR?=3D/data/poudriere/packages/pkgbase >>>> MODULES_EXTRA=3D"rpi_ft5406" >>>> WITH_LLVM_TARGET_AARCH64=3Dyes >>>> WITH_LLVM_TARGET_ARM=3Dyes >>>> .else >>>> KERNCONF?=3DGENERIC-NODEBUG >>>> REPODIR?=3D/data/poudriere/packages/pkgbase >>>> WITH_LLVM_TARGET_AARCH64=3Dyes >>>> WITH_LLVM_TARGET_X86=3Dyes >>>> .endif >>>=20 >>> Ending here. >>>=20 >>> This is written as if there were separate toolchains for >>> each target. That is not how llvm/clang/lld works, >>> unlike gcc. One toolchain covers all the targets. That >>> is what the FreBSD llvm support is structured for. >>>=20 >>> You want the one llvm/clang/lld toolchain that includes >>> everything required to build any/all of: >>>=20 >>> A) amd64 >>> B) i386 for amd64's lib32 >>> C) aarch64 >>> D) armv7 for aarch64's lib32 >>>=20 >>> So the *_LLVM_TARGET_* parts would be more like: >>>=20 >>> WITHOUT_PROFILE=3Dyes >>> WITHOUT_TESTS=3Dyes >>> WITHOUT_STATIC=3Dyes >>>=20 >>> WITHOUT_LLVM_TARGET_ALL=3Dyes >>> WITH_LLVM_TARGET_AARCH64=3Dyes >>> WITH_LLVM_TARGET_X86=3Dyes >>> WITH_LLVM_TARGET_AARCH64=3Dyes >>> WITH_LLVM_TARGET_ARM=3Dyes >>=20 >=20 > If you look closer, you will see that: >=20 > WITH_LLVM_TARGET_AARCH64=3Dyes Looks like the above was my typing mistake: WITH_LLVM_TARGET_AMD64 ? > WITH_LLVM_TARGET_X86=3Dyes >=20 > is in effect when I do =E2=80=9Cmake buildworld=E2=80=9D without any = TARGET and TARGET_ARCH, i.e. when I build the OS for the host (that is, = 14.0/amd64). WITH_LLVM_TARGET_??? and WITHOUT_LLVM_TARGET_??? control building the LLVM/clang/lld toolchain. What matters is when the llvm/clang/lld materials are built and = installed, and when they are used. The way the builds work for building aarch64 and armv7 buildworld and/or buildkernel materials on amd64, the one-and-the-same toolchain is used thus inside one buildworld/buildkernel run: A) some amd64 files are generated that are later poteitnally run by the amd64 system. (So there is amd64 code generation involved.) B) lots of aarch64/armv7 files are generated that are not run by the amd64 system. (So there is aarch64/armv7 code generation involved too.) The same toolchain is used for both (A) and (B) inside one buildworld run. The toolchain has to support all those targets inside the one buildworld/buildkernel run. The whole type of analysis of avoiding having targets you intend to use not being in some of your toolchain builds is just inappropriate for FreeBSD and how it uses LLVM. Prat of the point of LLVM is to avoid having distinct tool chains (or toolchain builds) for different targets of interest. One toolchain is sufficient. You need to quit using the conditional logic for=20 ???_LLVM_TARGET_??? definitions if your builds are going to systematically work. What you are doing is not like what the CI or snapshot build so that work just fine. no FreeBSD documentatino suggests what you are doing. Make things work more like those and things should work just fine. > But once I specify make TARGET=3Darm64 TARGET_ARCH=3Daarch64, only the = lines: >=20 > WITH_LLVM_TARGET_AARCH64=3Dyes > WITH_LLVM_TARGET_ARM=3Dyes And that is a problem with what you are doing, givne your use of WITHOUT_LLVM_TARGET_ALL=3Dyes . > are in effect. The line =E2=80=9CWITH_LLVM_TARGET_ARM=3Dyes=E2=80=9D = has only been added today for a test, but it did not make any = difference. As I would expect. Make sure that all the targets you are going to build for have "WITH_" status all the time in the amd64 build system, not just sometimes. "WITHOUT_" status should only be for targets that you will never use when building via the amd64 build system. =3D=3D=3D Mark Millard marklmi at yahoo.com