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- # SPDX-License-Identifier: Apache-2.0
- #
- # Copyright © 2017-2019 WireGuard LLC. All Rights Reserved.
-
- BUILDDIR ?= $(CURDIR)/build
- DESTDIR ?= $(CURDIR)/out
-
- NDK_GO_ARCH_MAP_x86 := 386
- NDK_GO_ARCH_MAP_x86_64 := amd64
- NDK_GO_ARCH_MAP_arm := arm
- NDK_GO_ARCH_MAP_arm64 := arm64
- NDK_GO_ARCH_MAP_mips := mipsx
- NDK_GO_ARCH_MAP_mips64 := mips64x
-
- CLANG_FLAGS := --target=$(ANDROID_LLVM_TRIPLE) --gcc-toolchain=$(ANDROID_TOOLCHAIN_ROOT) --sysroot=$(ANDROID_SYSROOT)
- export CGO_CFLAGS := $(CLANG_FLAGS) $(CFLAGS)
- export CGO_LDFLAGS := $(CLANG_FLAGS) $(LDFLAGS)
- export CC := $(ANDROID_C_COMPILER)
- export GOARCH := $(NDK_GO_ARCH_MAP_$(ANDROID_ARCH_NAME))
- export GOOS := android
- export CGO_ENABLED := 1
-
- default: $(DESTDIR)/libwg-go.so
-
- GOBUILDARCH := $(NDK_GO_ARCH_MAP_$(shell uname -m))
- GOBUILDOS := $(shell uname -s | tr '[:upper:]' '[:lower:]')
- GOBUILDVERSION := 1.12.10
- GOBUILDTARBALL := https://dl.google.com/go/go$(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.so")
-
- $(DESTDIR)/libwg-go.so: $(GOROOT)/bin/go
- go get -tags linux || { chmod -fR +w "$(GOPATH)/pkg/mod"; rm -rf "$(GOPATH)/pkg/mod"; exit 1; }
- chmod -fR +w "$(GOPATH)/pkg/mod"
- go build -tags linux -ldflags="-X main.socketDirectory=/data/data/$(ANDROID_PACKAGE_NAME)/cache/wireguard" -v -o "$@" -buildmode c-shared
- go version > $(BUILDDIR)/.gobuildversion
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