1 files changed, 110 insertions, 0 deletions
diff --git a/packages/sys-kernel/kernel-cachyos/kernel-cachyos-7.2.9-r1.exheres-0 b/packages/sys-kernel/kernel-cachyos/kernel-cachyos-7.2.9-r1.exheres-0
new file mode 100644
index 0000000..0fb85d0
--- /dev/null
+++ b/packages/sys-kernel/kernel-cachyos/kernel-cachyos-7.2.9-r1.exheres-0
@@ -0,0 +1,110 @@
+# Copyright 2026 Gurov <thuggerthugger1@duck.com>
+# Distributed under the terms of the GNU General Public License v2
+
+SUMMARY="Prebuilt CachyOS Linux kernel with matching module headers"
+HOMEPAGE="https://github.com/CachyOS/linux-cachyos"
+
+MY_RELEASE="${PV}-2"
+MY_KERNEL="linux-cachyos-${MY_RELEASE}-x86_64_v3.pkg.tar.zst"
+MY_HEADERS="linux-cachyos-headers-${MY_RELEASE}-x86_64_v3.pkg.tar.zst"
+KERNEL_RELEASE="${MY_RELEASE}-cachyos"
+DOWNLOADS="
+    https://mirror.cachyos.org/repo/x86_64_v3/cachyos-v3/${MY_KERNEL}
+    https://mirror.cachyos.org/repo/x86_64_v3/cachyos-v3/${MY_HEADERS}
+"
+
+LICENCES="GPL-2"
+SLOT="0"
+PLATFORMS="~amd64"
+RESTRICT="mirror strip test"
+
+DEPENDENCIES="
+    build:
+        app-arch/zstd
+
+    build+run:
+        sys-apps/kmod[zstd]
+
+    run:
+        app-arch/zstd
+        dev-lang/clang
+        dev-lang/llvm
+        dev-libs/openssl
+        dev-libs/xxHash
+        dev-util/dwarves
+        dev-util/elfutils
+        sys-apps/systemd
+        sys-boot/dracut
+        sys-devel/binutils
+        sys-devel/lld
+        sys-libs/zlib
+"
+
+WORK="${WORKBASE}"
+
+pkg_pretend() {
+    if exhost --is-native -q && [[ ${ROOT} == / ]]; then
+        local flags flag
+        flags=$(grep -m1 '^flags[[:space:]]*:' /proc/cpuinfo) || die "Cannot check CPU features"
+        for flag in avx avx2 bmi1 bmi2 f16c fma movbe sse4_1 sse4_2 popcnt abm; do
+            [[ " ${flags} " == *" ${flag} "* ]] || die "CachyOS x86-64-v3 kernel requires CPU feature ${flag}"
+        done
+    fi
+}
+
+src_unpack() {
+    local archive checksum expected
+    for archive in "${MY_KERNEL}" "${MY_HEADERS}"; do
+        case ${archive} in
+            "${MY_KERNEL}") expected=1cb3b27ee69d0ef743d8c30e5811e128376ecf23bc62536405f4e86ffedf1086 ;;
+            "${MY_HEADERS}") expected=ba982020097ef03b43ae5644e3ce6ec0942c468032f62d15b47d6be475b7d2af ;;
+        esac
+        checksum=$(sha256sum "${FETCHEDDIR}/${archive}") || die "Cannot checksum ${archive}"
+        [[ ${checksum%% *} == ${expected} ]] || die "CachyOS archive changed: ${archive}"
+    done
+
+    edo mkdir -p "${WORK}/binary" "${WORK}/headers"
+    edo tar --zstd -xf "${FETCHEDDIR}/${MY_KERNEL}" -C "${WORK}/binary"
+    edo tar --zstd -xf "${FETCHEDDIR}/${MY_HEADERS}" -C "${WORK}/headers"
+}
+
+src_compile() {
+    :
+}
+
+src_install() {
+    local modules="/usr/$(exhost --target)/lib/modules/${KERNEL_RELEASE}"
+    local binary="${WORK}/binary/usr/lib/modules/${KERNEL_RELEASE}"
+    local headers="${WORK}/headers/usr/lib/modules/${KERNEL_RELEASE}"
+
+    [[ -f ${binary}/vmlinuz && -d ${binary}/kernel && -f ${headers}/build/.config &&
+        -f ${headers}/build/Module.symvers && -f ${headers}/build/System.map &&
+        -d ${headers}/vdso ]] || die "CachyOS kernel or matching headers are missing"
+
+    dodir "${modules}"
+    edo cp -a "${binary}/." "${IMAGE}${modules}/"
+    edo cp -a "${headers}/." "${IMAGE}${modules}/"
+    edo depmod -b "${IMAGE}" -m "/usr/$(exhost --target)/lib/modules" -a "${KERNEL_RELEASE}"
+}
+
+pkg_postinst() {
+    local image="/usr/lib/modules/${KERNEL_RELEASE}/vmlinuz"
+    local retry="kernel-install add ${KERNEL_RELEASE} ${image}"
+
+    if [[ ${ROOT} != / ]] || ! exhost --is-native -q; then
+        elog "Boot setup skipped for non-native or alternate-root installation."
+        elog "On the target system, run: ${retry}"
+    elif ! mountpoint -q /boot || ! command -v kernel-install >/dev/null ||
+        ! command -v dracut >/dev/null; then
+        ewarn "Boot setup skipped: /boot must be mounted and kernel-install and dracut available."
+        ewarn "After fixing boot setup, run: ${retry}"
+    elif ! kernel-install add "${KERNEL_RELEASE}" "${image}"; then
+        ewarn "Boot entry or initramfs creation failed; check output above."
+        ewarn "After fixing boot setup, run: ${retry}"
+    else
+        elog "CachyOS boot entry and initramfs installed via kernel-install."
+    fi
+
+    ewarn "With Secure Boot enabled, kernel-install does not guarantee a trusted kernel signature."
+    ewarn "Verify signing and boot entry before booting CachyOS; keep your working kernel as fallback."
+}