CI: add FreeBSD-15-amd64 build via firecracker

build/ci/github_actions/freebsd.sh

@@ -0,0 +1,41 @@
+#!/bin/sh
+set -eu
+
+if [ $# != 1 ]
+then
+	echo "Usage: $0 prepare | test"
+	exit 1
+fi
+
+if [ "$1" = "prepare" ]
+then
+	set -x -e
+	env ASSUME_ALWAYS_YES=yes pkg bootstrap -f
+	sed -i.bak -e 's,pkg+http://pkg.FreeBSD.org/\${ABI}/quarterly,pkg+http://pkg.FreeBSD.org/\${ABI}/latest,' /etc/pkg/FreeBSD.conf
+	pkg update
+	mount -u -o acls /
+	mkdir /tmp_acl_nfsv4
+	MD=`mdconfig -a -t swap -s 128M`
+	newfs /dev/$MD
+	tunefs -N enable /dev/$MD
+	mount /dev/$MD /tmp_acl_nfsv4
+	chmod 1777 /tmp_acl_nfsv4
+	pkg install -y autoconf automake cmake gmake libiconv libtool pkgconf expat libxml2 liblz4 zstd
+elif [ "$1" = "test" ]
+then
+	set -e
+	echo "Additional NFSv4 ACL tests"
+	CURDIR=`pwd`
+	if [ "${BS}" = "cmake" ]
+	then
+		BIN_SUBDIR="bin"
+	else
+		BIN_SUBDIR=.
+	fi
+	BUILDDIR="${CURDIR}/build_ci/${BS}"
+	cd "$BUILDDIR"
+	TMPDIR=/tmp_acl_nfsv4 ${BIN_SUBDIR}/libarchive_test -r "${CURDIR}/libarchive/test" -v test_acl_platform_nfs4
+else
+	echo "Usage: $0 prepare | test"
+	exit 1
+fi