Jorijn van der Graaf
a2f5de9de0
The FP6 is 4x Cortex-A520 + 4x Cortex-A720 and this image boots nothing else, so pass the compiler KCFLAGS="-march=armv8.6-a+fp16fml+aes+sha3+sm4 -mtune=cortex-a720". The stock arm64 build gives the compiler no arch flag at all (so one image can boot any Armv8 board). The string is what `gcc -march=native` derives on the phone, re-based on armv8.6-a so clang can express the same set (clang has no flagm2/rcpc2/ frintts tokens; it reaches them through the architecture level). 8.6 is the highest level whose mandatory set the phone exposes: 8.7 would assume WFxT and 9.x SVE2, and neither is in its hwcaps or ID registers. clang emits identical code for this and for -mcpu=cortex-a720+nosve+nomemtag; the difference is only which system features (SPE, ETE, TRBE, FPAC) it knows about, none of which generate code. Verified on eef717f978f1 with the aport config: builds with zero warnings, same module set as r100 (417), compat vDSO untouched, boots the dev phone with a clean dmesg and a GREEN selftest. Record: fp6 journal/base/captures/2026-09-05-mcpu-a720-verification.md.
97 lines
3.1 KiB
Text
97 lines
3.1 KiB
Text
# Fork of pmaports device/testing/linux-postmarketos-qcom-milos (7.2.0-r0),
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# overlaid via pmbootstrap so it shadows the upstream aport. Differences:
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# source is the Catcrafts combined-stable branch (upstream v7.2.0-milos tag +
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# the FP6 bring-up carries), and the config is the exact one the development
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# FP6 runs, plus CONFIG_EFI_ZBOOT for the packaging below.
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maintainer="Jorijn van der Graaf <jorijnvdgraaf@catcrafts.net>"
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_flavor="postmarketos-qcom-milos"
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pkgname=linux-$_flavor
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pkgver=7.2.0
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# always sorts above the upstream aport (r0..r99)
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pkgrel=102
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pkgdesc="Milos mainline kernel + Catcrafts FP6 bring-up carries (combined-stable)"
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arch="aarch64"
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_carch="arm64"
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url="https://forgejo.catcrafts.net/Catcrafts/milos-linux"
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license="GPL-2.0-only"
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options="!strip !check !tracedeps
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pmb:cross-native
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pmb:kconfigcheck-community
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pmb:kconfigcheck-uefi
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"
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makedepends="
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bison
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clang
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elfutils-dev
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findutils
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flex
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installkernel
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linux-headers
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lld
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llvm
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openssl-dev
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pahole
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perl
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python3
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zstd
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"
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_config="config-$_flavor.$arch"
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# Pinned by CI: the instance has source archives disabled, so the tarball is
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# generated with git-archive (prefix milos-linux/) from combined-stable and
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# placed next to this APKBUILD before `pmbootstrap checksum` runs. See
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# build.sh at the repository root.
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_commit="REPLACED_BY_CI"
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source="
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milos-linux-$_commit.tar.gz
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0001-resolve_btfids-preserve-tag-and-parameter-names-when.patch
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$_config
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"
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builddir="$srcdir/milos-linux"
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prepare() {
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default_prepare
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cp "$srcdir/config-$_flavor.$arch" .config
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}
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build() {
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unset LDFLAGS
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# Build for the cores this image runs on: 4x Cortex-A520 + 4x Cortex-A720.
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# The stock arm64 build gives the compiler no arch flag so one image boots
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# any Armv8 board; this one boots the FP6. armv8.6-a is the highest level
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# whose mandatory set the phone exposes (8.7 would assume WFxT, 9.x SVE2;
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# neither is in its hwcaps); +fp16fml+aes+sha3+sm4 are the optional
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# extensions it has, the same set `gcc -march=native` derives on the phone.
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make ARCH="$_carch" LLVM=1 \
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KCFLAGS="-march=armv8.6-a+fp16fml+aes+sha3+sm4 -mtune=cortex-a720" \
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KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-$_flavor"
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}
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package() {
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# ZBOOT EFI decompressor for EFI booting
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install -Dm644 "$builddir/arch/$_carch/boot/vmlinuz.efi" \
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"$pkgdir/boot/linux.efi"
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# Old GZIP'd kernel image for boot.img compatibility
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install -Dm644 "$builddir/arch/$_carch/boot/vmlinuz" \
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"$pkgdir/boot/vmlinuz"
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make modules_install dtbs_install \
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ARCH="$_carch" \
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LLVM=1 \
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INSTALL_PATH="$pkgdir"/boot/ \
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INSTALL_MOD_PATH="$pkgdir"/usr \
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INSTALL_MOD_STRIP=1 \
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INSTALL_DTBS_PATH="$pkgdir"/boot/dtbs
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rm -f "$pkgdir"/lib/modules/*/build "$pkgdir"/lib/modules/*/source
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install -D "$builddir"/include/config/kernel.release \
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"$pkgdir"/usr/share/kernel/$_flavor/kernel.release
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}
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sha512sums="
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REPLACED_BY_CI milos-linux-REPLACED_BY_CI.tar.gz
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4e705e038a91466a86fc5317b0028c2220aa1e7a4807e5d86db2f9ac815a927c59666a8f21ed50c4632147d3ce183d8042378a76f95341dbcd3db1047faf39e3 0001-resolve_btfids-preserve-tag-and-parameter-names-when.patch
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REPLACED_BY_CI config-postmarketos-qcom-milos.aarch64
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"
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