1 # Copyright 2016 The Chromium OS Authors. All rights reserved. 2 # Use of this source code is governed by a BSD-style license that can be 3 # found in the LICENSE file. 4 5 LOCAL_MOJO_ROOT := $(call my-dir) 6 7 JNI_GENERATOR_TOOL := \ 8 $(LOCAL_MOJO_ROOT)/base/android/jni_generator/jni_generator.py 9 10 generated_sources_dir := $(local-generated-sources-dir) 11 generated_files := 12 13 # $(1): a single Java file 14 define generate-jni-header 15 16 java_file := $(1) 17 local_path := $(LOCAL_PATH) 18 target_path := $(generated_sources_dir)/jni 19 gen_h := $$(target_path)/$$(basename $$(notdir $$(java_file)))_jni.h 20 21 $$(gen_h) : PRIVATE_PATH := $$(local_path) 22 $$(gen_h) : PRIVATE_TARGET := $$(target_path) 23 $$(gen_h) : PRIVATE_CUSTOM_TOOL = \ 24 (cd $$(PRIVATE_PATH) && \ 25 python $$(abspath $$(JNI_GENERATOR_TOOL)) \ 26 --input_file=$$(subst $$(PRIVATE_PATH)/,,$$<) \ 27 --output_dir=$$(abspath $$(PRIVATE_TARGET)) \ 28 --includes base/android/jni_generator/jni_generator_helper.h \ 29 --ptr_type long \ 30 --native_exports_optional) 31 $$(gen_h) : $$(local_path)/$$(java_file) $$(JNI_GENERATOR_TOOL) 32 $$(transform-generated-source) 33 34 generated_files += $$(gen_h) 35 36 endef # define generate-jni-header 37 38 # Build each file separately since the build command needs to be done per-file. 39 $(foreach file,$(LOCAL_JAVA_JNI_FILES),$(eval $(call generate-jni-header,$(file)))) 40 41 # Add the generated sources to the C includes. 42 LOCAL_C_INCLUDES += $(generated_sources_dir) 43 44 # Create a stamp file after all files have been generated. 45 gen := $(generated_sources_dir)/.jni.stamp 46 $(gen) : $(generated_files) 47 $(hide) echo $^ | sed -e 's/ /\n/g' > $@ 48 49 # Add the stamp file as a dependency to {import,export}_includes. 50 $(local-intermediates-dir)/import_includes: | $(generated_sources_dir)/.jni.stamp 51
