soong.mk revision 5f38f9be220bbfe56b9b6d3f54bf66fb0603a2f6 
1SOONG_OUT_DIR := $(OUT_DIR)/soong
2SOONG := $(SOONG_OUT_DIR)/soong
3SOONG_BUILD_NINJA := $(SOONG_OUT_DIR)/build.ninja
4SOONG_ANDROID_MK := $(SOONG_OUT_DIR)/Android.mk
5SOONG_VARIABLES := $(SOONG_OUT_DIR)/soong.variables
6SOONG_IN_MAKE := $(SOONG_OUT_DIR)/.soong.in_make
7
8ifeq (,$(filter /%,$(SOONG_OUT_DIR)))
9SOONG_TOP_RELPATH := $(shell python -c "import os; print os.path.relpath('$(TOP)', '$(SOONG_OUT_DIR)')")
10else
11SOONG_TOP_RELPATH := $(realpath $(TOP))
12endif
13
14# Bootstrap soong.  Run only the first time for clean builds
15$(SOONG):
16	$(hide) mkdir -p $(dir $@)
17	$(hide) cd $(dir $@) && $(SOONG_TOP_RELPATH)/bootstrap.bash
18
19# Create soong.variables with copies of makefile settings.  Runs every build,
20# but only updates soong.variables if it changes
21SOONG_VARIABLES_TMP := $(SOONG_VARIABLES).$$$$
22$(SOONG_VARIABLES): FORCE
23	$(hide) mkdir -p $(dir $@)
24	$(hide) (\
25	echo '{'; \
26	echo '    "Device_uses_jemalloc": $(if $(filter dlmalloc,$(MALLOC_IMPL)),false,true),'; \
27	echo '    "Device_uses_dlmalloc": $(if $(filter dlmalloc,$(MALLOC_IMPL)),true,false),'; \
28	echo '    $(if $(BOARD_MALLOC_ALIGNMENT),"Dlmalloc_alignment": $(BOARD_MALLOC_ALIGNMENT)$(comma),)'; \
29	echo '    "Platform_sdk_version": $(PLATFORM_SDK_VERSION),'; \
30	echo '    "Unbundled_build": $(if $(TARGET_BUILD_APPS),true,false),'; \
31	echo '    "Brillo": $(if $(BRILLO),true,false),'; \
32	echo ''; \
33	echo '    "DeviceName": "$(TARGET_DEVICE)",'; \
34	echo '    "DeviceArch": "$(TARGET_ARCH)",'; \
35	echo '    "DeviceArchVariant": "$(TARGET_ARCH_VARIANT)",'; \
36	echo '    "DeviceCpuVariant": "$(TARGET_CPU_VARIANT)",'; \
37	echo '    "DeviceAbi": ["$(TARGET_CPU_ABI)", "$(TARGET_CPU_ABI2)"],'; \
38	echo '    "DeviceUsesClang": $(if $(USE_CLANG_PLATFORM_BUILD),$(USE_CLANG_PLATFORM_BUILD),false),'; \
39	echo ''; \
40	echo '    "DeviceSecondaryArch": "$(TARGET_2ND_ARCH)",'; \
41	echo '    "DeviceSecondaryArchVariant": "$(TARGET_2ND_ARCH_VARIANT)",'; \
42	echo '    "DeviceSecondaryCpuVariant": "$(TARGET_2ND_CPU_VARIANT)",'; \
43	echo '    "DeviceSecondaryAbi": ["$(TARGET_2ND_CPU_ABI)", "$(TARGET_2ND_CPU_ABI2)"],'; \
44	echo ''; \
45	echo '    "HostArch": "$(HOST_ARCH)",'; \
46	echo '    "HostSecondaryArch": "$(HOST_2ND_ARCH)"'; \
47	echo '}') > $(SOONG_VARIABLES_TMP); \
48	if ! cmp -s $(SOONG_VARIABLES_TMP) $(SOONG_VARIABLES); then \
49	  mv $(SOONG_VARIABLES_TMP) $(SOONG_VARIABLES); \
50	else \
51	  rm $(SOONG_VARIABLES_TMP); \
52	fi
53
54# Tell soong that it is embedded in make
55$(SOONG_IN_MAKE):
56	$(hide) mkdir -p $(dir $@)
57	$(hide) touch $@
58
59# Build an Android.mk listing all soong outputs as prebuilts
60$(SOONG_ANDROID_MK): $(SOONG) $(SOONG_VARIABLES) $(SOONG_IN_MAKE) FORCE
61	$(hide) $(SOONG) $(SOONG_BUILD_NINJA) $(NINJA_ARGS)
62