From 71930b71c9d092bdd86f4fe7e71b353d85b87ba2 Mon Sep 17 00:00:00 2001
From: James Le Cuirot <jlecuirot@microsoft.com>
Date: Fri, 12 Dec 2025 16:56:46 +0000
Subject: [PATCH] app-emulation/hv-daemons: Don't use kmake to build this

It's essentially a standalone userspace project that happens to live
within the kernel sources. It should not be built like the kernel.

hv_fcopy_daemon was dropped upstream.

Signed-off-by: James Le Cuirot <jlecuirot@microsoft.com>
---
 .../hv-daemons/files/hv_fcopy_daemon.service  |  9 -------
 .../hv-daemons/hv-daemons-6.12.62.ebuild      | 26 +++++++++++--------
 2 files changed, 15 insertions(+), 20 deletions(-)
 delete mode 100644 sdk_container/src/third_party/coreos-overlay/app-emulation/hv-daemons/files/hv_fcopy_daemon.service

diff --git a/sdk_container/src/third_party/coreos-overlay/app-emulation/hv-daemons/files/hv_fcopy_daemon.service b/sdk_container/src/third_party/coreos-overlay/app-emulation/hv-daemons/files/hv_fcopy_daemon.service
deleted file mode 100644
index c4d63d39ed..0000000000
--- a/sdk_container/src/third_party/coreos-overlay/app-emulation/hv-daemons/files/hv_fcopy_daemon.service
+++ /dev/null
@@ -1,9 +0,0 @@
-[Unit]
-Description=Hyper-V FCOPY daemon
-ConditionPathExists=/dev/vmbus/hv_fcopy
-
-[Service]
-ExecStart=/usr/bin/hv_fcopy_daemon --no-daemon
-
-[Install]
-WantedBy=multi-user.target
diff --git a/sdk_container/src/third_party/coreos-overlay/app-emulation/hv-daemons/hv-daemons-6.12.62.ebuild b/sdk_container/src/third_party/coreos-overlay/app-emulation/hv-daemons/hv-daemons-6.12.62.ebuild
index 8e49474683..be770a8081 100644
--- a/sdk_container/src/third_party/coreos-overlay/app-emulation/hv-daemons/hv-daemons-6.12.62.ebuild
+++ b/sdk_container/src/third_party/coreos-overlay/app-emulation/hv-daemons/hv-daemons-6.12.62.ebuild
@@ -3,25 +3,29 @@
 
 EAPI=8
 
-inherit coreos-kernel savedconfig systemd
+inherit coreos-kernel systemd
 
 DESCRIPTION="HyperV guest support daemons"
 KEYWORDS="amd64 arm64"
 
+src_configure() {
+	:
+}
+
 src_compile() {
-	# Build hv_vss_daemon, hv_kvp_daemon, hv_fcopy_daemon
-	kmake tools/hv
+	emake \
+		-C "${KV_DIR}/tools/hv" \
+		ARCH="${CHOST%%-*}" \
+		CROSS_COMPILE="${CHOST}-" \
+		OUTPUT="${S}/" \
+		V=1
 }
 
 src_install() {
-	local -a HV_DAEMONS=(hv_vss_daemon hv_kvp_daemon hv_fcopy_daemon hv_fcopy_uio_daemon)
 	local HV_DAEMON
-	for HV_DAEMON in "${HV_DAEMONS[@]}"
-	do
-		if [ -f "${S}/build/tools/hv/${HV_DAEMON}" ]; then
-			dobin "${S}/build/tools/hv/${HV_DAEMON}"
-			systemd_dounit "${FILESDIR}/${HV_DAEMON}.service"
-			systemd_enable_service "multi-user.target" "${HV_DAEMON}.service"
-		fi
+	for HV_DAEMON in hv_{kvp,vss}_daemon $(usex !arm64 hv_fcopy_uio_daemon ""); do
+		dobin "${HV_DAEMON}"
+		systemd_dounit "${FILESDIR}/${HV_DAEMON}.service"
+		systemd_enable_service "multi-user.target" "${HV_DAEMON}.service"
 	done
 }