update

build.sh

@@ -0,0 +1,68 @@
+#!/bin/sh
+set -eu
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd -P)"
+FREEBSD_SRC="${FREEBSD_SRC:-/usr/src}"
+FS_SRC="${SCRIPT_DIR}/src"
+BUILD_DIR="${SCRIPT_DIR}/build"
+WORK_DIR="${BUILD_DIR}/obj"
+MAKE="${MAKE:-make}"
+WITH_ZSTDIO="${WITH_ZSTDIO:-0}"
+NM_UNDEF=""
+
+cleanup() {
+	[ -z "${NM_UNDEF}" ] || rm -f "${NM_UNDEF}"
+}
+
+trap cleanup EXIT
+trap 'cleanup; exit 1' HUP INT TERM
+
+fail() {
+	echo "ERROR: $*" >&2
+	exit 1
+}
+
+make_kmod() {
+	MAKEOBJDIR="${WORK_DIR}" "${MAKE}" -C "${FS_SRC}" \
+		SRCTOP="${FREEBSD_SRC}" SYSDIR="${FREEBSD_SRC}/sys" \
+		WITH_ZSTDIO="${WITH_ZSTDIO}" "$@"
+}
+
+[ "$(uname -s)" = "FreeBSD" ] ||
+	fail "build.sh requires a native FreeBSD build host"
+[ -d "${FREEBSD_SRC}/sys" ] ||
+	fail "FreeBSD source tree not found: ${FREEBSD_SRC}"
+[ -d "${FS_SRC}" ] || fail "Source directory not found: ${FS_SRC}"
+command -v "${MAKE}" >/dev/null 2>&1 || fail "make is required"
+command -v awk >/dev/null 2>&1 || fail "awk is required"
+command -v nm >/dev/null 2>&1 || fail "nm is required"
+[ -f "${FREEBSD_SRC}/sys/tools/vnode_if.awk" ] ||
+	fail "vnode_if.awk not found in ${FREEBSD_SRC}"
+[ -f "${FREEBSD_SRC}/sys/kern/vnode_if.src" ] ||
+	fail "vnode_if.src not found in ${FREEBSD_SRC}"
+case "${WITH_ZSTDIO}" in
+0|1) ;;
+*) fail "WITH_ZSTDIO must be 0 or 1" ;;
+esac
+
+rm -rf "${WORK_DIR}"
+mkdir -p "${WORK_DIR}"
+KMOD="$(make_kmod -V PROG)"
+[ -n "${KMOD}" ] || fail "src/Makefile did not define a module output"
+
+echo "==> Building repo22 ${KMOD}"
+make_kmod all
+
+[ -f "${WORK_DIR}/${KMOD}" ] || fail "module was not produced"
+
+NM_UNDEF="$(mktemp "${WORK_DIR}/nm-undef.XXXXXX")" ||
+	fail "could not create nm output file"
+if ! nm -u "${WORK_DIR}/${KMOD}" >"${NM_UNDEF}"; then
+	fail "nm failed while checking ${KMOD}"
+fi
+if ! awk '$NF == "bcmp" { found = 1 } END { exit found }' "${NM_UNDEF}"; then
+	fail "${KMOD} contains an unresolved bcmp reference"
+fi
+
+cp -f "${WORK_DIR}/${KMOD}" "${BUILD_DIR}/"
+echo "==> SUCCESS: ${BUILD_DIR}/${KMOD}"