tools: pass -Wl,--build-id=none and -buildid= to toolchain

Unfortunately, we need to fix this up in both the Makefile and in CMake,
because add_link_options doesn't immediately reflect on the CMake
variables in scope.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

Author: zx2c4

tunnel/tools/CMakeLists.txt

@@ -5,6 +5,7 @@
 cmake_minimum_required(VERSION 3.4.1)
 project("WireGuard")
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_LIBRARY_OUTPUT_DIRECTORY}")
+add_link_options(LINKER:--build-id=none)
 
 add_executable(libwg-quick.so wireguard-tools/src/wg-quick/android.c ndk-compat/compat.c)
 target_compile_options(libwg-quick.so PUBLIC -O3 -std=gnu11 -Wall -include ${CMAKE_CURRENT_SOURCE_DIR}/ndk-compat/compat.h -DWG_PACKAGE_NAME=\"${ANDROID_PACKAGE_NAME}\")

tunnel/tools/libwg-go/Makefile

@@ -12,9 +12,10 @@ NDK_GO_ARCH_MAP_arm64 := arm64
 NDK_GO_ARCH_MAP_mips := mipsx
 NDK_GO_ARCH_MAP_mips64 := mips64x
 
+comma := ,
 CLANG_FLAGS := --target=$(TARGET) --sysroot=$(SYSROOT)
 export CGO_CFLAGS := $(CLANG_FLAGS) $(subst -mthumb,-marm,$(CFLAGS))
-export CGO_LDFLAGS := $(CLANG_FLAGS) $(LDFLAGS) -Wl,-soname=libwg-go.so
+export CGO_LDFLAGS := $(CLANG_FLAGS) $(patsubst -Wl$(comma)--build-id=%,-Wl$(comma)--build-id=none,$(LDFLAGS)) -Wl,-soname=libwg-go.so
 export GOARCH := $(NDK_GO_ARCH_MAP_$(ANDROID_ARCH_NAME))
 export GOOS := android
 export CGO_ENABLED := 1
@@ -46,6 +47,6 @@ $(BUILDDIR)/go-$(GO_VERSION)/.prepared: $(GRADLE_USER_HOME)/caches/golang/$(GO_T
 
 $(DESTDIR)/libwg-go.so: export PATH := $(BUILDDIR)/go-$(GO_VERSION)/bin/:$(PATH)
 $(DESTDIR)/libwg-go.so: $(BUILDDIR)/go-$(GO_VERSION)/.prepared go.mod
-	go build -tags linux -ldflags="-X golang.zx2c4.com/wireguard/ipc.socketDirectory=/data/data/$(ANDROID_PACKAGE_NAME)/cache/wireguard" -v -trimpath -o "$@" -buildmode c-shared
+	go build -tags linux -ldflags="-X golang.zx2c4.com/wireguard/ipc.socketDirectory=/data/data/$(ANDROID_PACKAGE_NAME)/cache/wireguard -buildid=" -v -trimpath -o "$@" -buildmode c-shared
 
 .DELETE_ON_ERROR: