# SPDX-License-Identifier: GPL-2.0 # # Copyright (C) 2018-2019 Jason A. Donenfeld . All Rights Reserved. # These are generally passed to us by xcode, but we set working defaults for standalone compilation too. ARCHS ?= arm64 armv7 SDK_NAME ?= iphoneos SDKROOT ?= $(shell xcrun --sdk $(SDK_NAME) --show-sdk-path) CONFIGURATION_BUILD_DIR ?= $(CURDIR)/out CONFIGURATION_TEMP_DIR ?= $(CURDIR)/.tmp export CC ?= clang LIPO ?= lipo DESTDIR ?= $(CONFIGURATION_BUILD_DIR) BUILDDIR ?= $(CONFIGURATION_TEMP_DIR)/wireguard-go-bridge UPSTREAM_FILES := $(filter-out %/main.go %/queueconstants.go,$(wildcard ../wireguard-go/*/*.go) $(wildcard ../wireguard-go/*.go)) ../wireguard-go/go.mod ../wireguard-go/go.sum DOWNSTREAM_FILES := $(wildcard src/*.go) $(wildcard src/*/*.go) CFLAGS_PREFIX := $(DEPLOYMENT_TARGET_CLANG_FLAG_PREFIX)$($(DEPLOYMENT_TARGET_CLANG_ENV_NAME)) -isysroot $(SDKROOT) -arch GOARCH_arm64 := arm64 GOARCH_armv7 := arm GOARCH_x86_64 := amd64 export GOOS := darwin export CGO_ENABLED := 1 build: $(DESTDIR)/libwg-go.a version-header: $(DESTDIR)/wireguard-go-version.h GOBUILDARCH := $(GOARCH_$(shell uname -m)) GOBUILDOS := $(shell uname -s | tr '[:upper:]' '[:lower:]') GOBUILDVERSION := 1.11.4 GOBUILDTARBALL := https://dl.google.com/go/go$(GOBUILDVERSION).$(GOBUILDOS)-$(GOBUILDARCH).tar.gz GOBUILDVERSION_NEEDED := go version go$(GOBUILDVERSION) $(GOBUILDOS)/$(GOBUILDARCH) export GOROOT := $(BUILDDIR)/goroot export GOPATH := $(BUILDDIR)/gopath export PATH := $(GOROOT)/bin:$(PATH) GOBUILDVERSION_CURRENT := $(shell $(GOROOT)/bin/go version 2>/dev/null) ifneq ($(GOBUILDVERSION_NEEDED),$(GOBUILDVERSION_CURRENT)) $(shell rm -f $(GOROOT)/bin/go) endif $(GOROOT)/bin/go: rm -rf "$(GOROOT)" mkdir -p "$(GOROOT)" curl "$(GOBUILDTARBALL)" | tar -C "$(GOROOT)" --strip-components=1 -xzf - || { rm -rf "$(GOROOT)"; exit 1; } patch -p1 -f -N -r- -d "$(GOROOT)" < goruntime-boottime-over-monotonic.diff || { rm -rf "$(GOROOT)"; exit 1; } $(shell test "$$(cat "$(BUILDDIR)/.gobuildversion" 2>/dev/null)" = "$(GOBUILDVERSION_CURRENT)" || rm -f "$(DESTDIR)/libwg-go.a") define copy-src-to-build $(subst $(1),$(BUILDDIR)/,$(2)): $(2) @mkdir -vp "$$(dir $$@)" @cp -vp "$$<" "$$@" $(BUILDDIR)/.prepared: $(subst $(1),$(BUILDDIR)/,$(2)) endef $(foreach FILE,$(UPSTREAM_FILES),$(eval $(call copy-src-to-build,../wireguard-go/,$(FILE)))) $(foreach FILE,$(DOWNSTREAM_FILES),$(eval $(call copy-src-to-build,src/,$(FILE)))) $(BUILDDIR)/.prepared: $(GOROOT)/bin/go cd "$(BUILDDIR)" || exit $$?; $(foreach ARCH,$(ARCHS),CGO_CFLAGS="$(CFLAGS_PREFIX) $(ARCH)" CGO_LDFLAGS="$(CFLAGS_PREFIX) $(ARCH)" GOARCH="$(GOARCH_$(ARCH))" go get -tags ios || { ret=$$?; chmod -fR +w "$(GOPATH)/pkg/mod"; rm -rf "$(GOPATH)/pkg/mod"; exit $$ret; };) chmod -fR +w "$(GOPATH)/pkg/mod" touch "$@" define libwg-go-a $(BUILDDIR)/libwg-go-$(1).a: $(BUILDDIR)/.prepared cd "$(BUILDDIR)" || exit $$$$?; \ CGO_CFLAGS="$(CFLAGS_PREFIX) $(ARCH)" \ CGO_LDFLAGS="$(CFLAGS_PREFIX) $(ARCH)" \ GOARCH="$(GOARCH_$(1))" \ go build -tags ios -ldflags=-w -v -o "$(BUILDDIR)/libwg-go-$(1).a" -buildmode c-archive && go version > "$(BUILDDIR)/.gobuildversion"; \ ret=$$$$?; \ rm -f "$(BUILDDIR)/libwg-go-$(1).h"; \ exit $$$$ret endef $(foreach ARCH,$(ARCHS),$(eval $(call libwg-go-a,$(ARCH)))) $(DESTDIR)/wireguard-go-version.h: ../wireguard-go/version.go sed -n 's/.*WireGuardGoVersion = "\(.*\)"/#define WIREGUARD_GO_VERSION "\1"/p' "$^" > "$@" $(DESTDIR)/libwg-go.a: $(foreach ARCH,$(ARCHS),$(BUILDDIR)/libwg-go-$(ARCH).a) @mkdir -vp "$(DESTDIR)" $(LIPO) -create -output "$@" $^ clean: rm -rf "$(BUILDDIR)" "$(DESTDIR)/libwg-go.a" "$(DESTDIR)/wireguard-go-version.h" install: build .PHONY: clean build version-header install