Remove import_includes/export_includes
Now that ONE_SHOT_MAKEFILE no longer exists, we don't have to rely on
the filesystem to store this informtion.
This removes ~16.7k files from our build graph
(aosp-master/aosp_arm64-eng), though only about 600 of them were being
used in a normal build.
Test: treehugger
Change-Id: I3ac12f5ea7f11d25064109a0599bc5be1976fba5
diff --git a/CleanSpec.mk b/CleanSpec.mk
index 426e25d..032f6e5 100644
--- a/CleanSpec.mk
+++ b/CleanSpec.mk
@@ -646,6 +646,9 @@
# link_type and jni_link_type files are no longer needed
$(call add-clean-step, find $(OUT_DIR) -type f -name "*link_type" -print0 | xargs -0 rm -f)
+# import_includes and export_includes files are no longer needed
+$(call add-clean-step, find $(OUT_DIR) -type f -name "import_includes" -o -name "export_includes" -print0 | xargs -0 rm -f)
+
# ************************************************
# NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST
# ************************************************
diff --git a/core/binary.mk b/core/binary.mk
index 874a4d3..4709e8e 100644
--- a/core/binary.mk
+++ b/core/binary.mk
@@ -1174,31 +1174,6 @@
####################################################
-## Import includes
-####################################################
-import_includes := $(intermediates)/import_includes
-import_includes_deps := $(strip \
- $(if $(LOCAL_USE_VNDK),\
- $(call intermediates-dir-for,HEADER_LIBRARIES,device_kernel_headers,$(my_kind),,$(LOCAL_2ND_ARCH_VAR_PREFIX),$(my_host_cross))/export_includes) \
- $(foreach l, $(installed_shared_library_module_names), \
- $(call intermediates-dir-for,SHARED_LIBRARIES,$(l),$(my_kind),,$(LOCAL_2ND_ARCH_VAR_PREFIX),$(my_host_cross))/export_includes) \
- $(foreach l, $(my_static_libraries) $(my_whole_static_libraries), \
- $(call intermediates-dir-for,STATIC_LIBRARIES,$(l),$(my_kind),,$(LOCAL_2ND_ARCH_VAR_PREFIX),$(my_host_cross))/export_includes) \
- $(foreach l, $(my_header_libraries), \
- $(call intermediates-dir-for,HEADER_LIBRARIES,$(l),$(my_kind),,$(LOCAL_2ND_ARCH_VAR_PREFIX),$(my_host_cross))/export_includes))
-$(import_includes): PRIVATE_IMPORT_EXPORT_INCLUDES := $(import_includes_deps)
-$(import_includes) : $(import_includes_deps)
- @echo Import includes file: $@
- $(hide) mkdir -p $(dir $@) && rm -f $@
-ifdef import_includes_deps
- $(hide) for f in $(PRIVATE_IMPORT_EXPORT_INCLUDES); do \
- cat $$f >> $@; \
- done
-else
- $(hide) touch $@
-endif
-
-####################################################
## Verify that NDK-built libraries only link against
## other NDK-built libraries
####################################################
@@ -1309,7 +1284,6 @@
# that custom build rules which generate .o files don't consume other generated
# sources as input (or if they do they take care of that dependency themselves).
$(normal_objects) : | $(my_generated_sources)
-$(all_objects) : $(import_includes)
ALL_C_CPP_ETC_OBJECTS += $(all_objects)
@@ -1678,6 +1652,22 @@
$(LOCAL_INTERMEDIATE_TARGETS): $(my_coverage_lib)
endif
+####################################################
+## Import includes
+####################################################
+imported_includes := $(strip \
+ $(if $(LOCAL_USE_VNDK),\
+ $(call intermediates-dir-for,HEADER_LIBRARIES,device_kernel_headers,$(my_kind),,$(LOCAL_2ND_ARCH_VAR_PREFIX),$(my_host_cross))) \
+ $(foreach l, $(installed_shared_library_module_names), \
+ $(call intermediates-dir-for,SHARED_LIBRARIES,$(l),$(my_kind),,$(LOCAL_2ND_ARCH_VAR_PREFIX),$(my_host_cross))) \
+ $(foreach l, $(my_static_libraries) $(my_whole_static_libraries), \
+ $(call intermediates-dir-for,STATIC_LIBRARIES,$(l),$(my_kind),,$(LOCAL_2ND_ARCH_VAR_PREFIX),$(my_host_cross))) \
+ $(foreach l, $(my_header_libraries), \
+ $(call intermediates-dir-for,HEADER_LIBRARIES,$(l),$(my_kind),,$(LOCAL_2ND_ARCH_VAR_PREFIX),$(my_host_cross))))
+
+$(foreach dep,$(imported_includes),\
+ $(eval EXPORTS.$$(dep).USERS := $$(EXPORTS.$$(dep).USERS) $$(all_objects)))
+
###########################################################
## Define PRIVATE_ variables used by multiple module types
###########################################################
@@ -1730,7 +1720,7 @@
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_RTTI_FLAG := $(LOCAL_RTTI_FLAG)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_DEBUG_CFLAGS := $(debug_cflags)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_C_INCLUDES := $(my_c_includes)
-$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_IMPORT_INCLUDES := $(import_includes)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_IMPORTED_INCLUDES := $(imported_includes)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_LDFLAGS := $(my_ldflags)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_LDLIBS := $(my_ldlibs)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_TIDY_CHECKS := $(my_tidy_checks)
@@ -1757,51 +1747,30 @@
###########################################################
# Export includes
###########################################################
-export_includes := $(intermediates)/export_includes
-export_cflags := $(foreach d,$(my_export_c_include_dirs),-I $(d))
-$(export_includes): PRIVATE_EXPORT_CFLAGS := $(export_cflags)
+
# Headers exported by whole static libraries are also exported by this library.
export_include_deps := $(strip \
$(foreach l,$(my_whole_static_libraries), \
- $(call intermediates-dir-for,STATIC_LIBRARIES,$(l),$(my_kind),,$(LOCAL_2ND_ARCH_VAR_PREFIX),$(my_host_cross))/export_includes))
+ $(call intermediates-dir-for,STATIC_LIBRARIES,$(l),$(my_kind),,$(LOCAL_2ND_ARCH_VAR_PREFIX),$(my_host_cross))))
# Re-export requested headers from shared libraries.
export_include_deps += $(strip \
$(foreach l,$(LOCAL_EXPORT_SHARED_LIBRARY_HEADERS), \
- $(call intermediates-dir-for,SHARED_LIBRARIES,$(l),$(my_kind),,$(LOCAL_2ND_ARCH_VAR_PREFIX),$(my_host_cross))/export_includes))
+ $(call intermediates-dir-for,SHARED_LIBRARIES,$(l),$(my_kind),,$(LOCAL_2ND_ARCH_VAR_PREFIX),$(my_host_cross))))
# Re-export requested headers from static libraries.
export_include_deps += $(strip \
$(foreach l,$(LOCAL_EXPORT_STATIC_LIBRARY_HEADERS), \
- $(call intermediates-dir-for,STATIC_LIBRARIES,$(l),$(my_kind),,$(LOCAL_2ND_ARCH_VAR_PREFIX),$(my_host_cross))/export_includes))
+ $(call intermediates-dir-for,STATIC_LIBRARIES,$(l),$(my_kind),,$(LOCAL_2ND_ARCH_VAR_PREFIX),$(my_host_cross))))
# Re-export requested headers from header libraries.
export_include_deps += $(strip \
$(foreach l,$(LOCAL_EXPORT_HEADER_LIBRARY_HEADERS), \
- $(call intermediates-dir-for,HEADER_LIBRARIES,$(l),$(my_kind),,$(LOCAL_2ND_ARCH_VAR_PREFIX),$(my_host_cross))/export_includes))
-$(export_includes): PRIVATE_REEXPORTED_INCLUDES := $(export_include_deps)
-# By adding $(my_generated_sources) it makes sure the headers get generated
-# before any dependent source files get compiled.
-$(export_includes) : $(my_export_c_include_deps) $(my_generated_sources) $(export_include_deps) $(LOCAL_EXPORT_C_INCLUDE_DEPS)
- @echo Export includes file: $< -- $@
- $(hide) mkdir -p $(dir $@) && rm -f $@.tmp && touch $@.tmp
-ifdef export_cflags
- $(hide) echo "$(PRIVATE_EXPORT_CFLAGS)" >>$@.tmp
-endif
-ifdef export_include_deps
- $(hide) for f in $(PRIVATE_REEXPORTED_INCLUDES); do \
- cat $$f >> $@.tmp; \
- done
-endif
- $(hide) if cmp -s $@.tmp $@ ; then \
- rm $@.tmp ; \
- else \
- mv $@.tmp $@ ; \
- fi
-export_cflags :=
+ $(call intermediates-dir-for,HEADER_LIBRARIES,$(l),$(my_kind),,$(LOCAL_2ND_ARCH_VAR_PREFIX),$(my_host_cross))))
-# Kati adds restat=1 to ninja. GNU make does nothing for this.
-.KATI_RESTAT: $(export_includes)
-
-# Make sure export_includes gets generated when you are running mm/mmm
-$(LOCAL_BUILT_MODULE) : | $(export_includes)
+ifneq ($(strip $(my_export_c_include_dirs)$(export_include_deps)),)
+ EXPORTS_LIST := $(EXPORTS_LIST) $(intermediates)
+ EXPORTS.$(intermediates).FLAGS := $(foreach d,$(my_export_c_include_dirs),-I $(d))
+ EXPORTS.$(intermediates).REEXPORT := $(export_include_deps)
+ EXPORTS.$(intermediates).DEPS := $(my_export_c_include_deps) $(my_generated_sources) $(LOCAL_EXPORT_C_INCLUDE_DEPS)
+endif
ifneq (,$(filter-out $(LOCAL_PATH)/%,$(my_export_c_include_dirs)))
my_soong_problems += non_local__export_c_include_dirs
diff --git a/core/cc_prebuilt_internal.mk b/core/cc_prebuilt_internal.mk
index 0c87151..a8930d5 100644
--- a/core/cc_prebuilt_internal.mk
+++ b/core/cc_prebuilt_internal.mk
@@ -75,18 +75,9 @@
built_module := $(LOCAL_BUILT_MODULE)
ifdef prebuilt_module_is_a_library
-export_includes := $(intermediates)/export_includes
-export_cflags := $(foreach d,$(LOCAL_EXPORT_C_INCLUDE_DIRS),-I $(d))
-$(export_includes): PRIVATE_EXPORT_CFLAGS := $(export_cflags)
-$(export_includes): $(LOCAL_EXPORT_C_INCLUDE_DEPS)
- @echo Export includes file: $< -- $@
- $(hide) mkdir -p $(dir $@) && rm -f $@
-ifdef export_cflags
- $(hide) echo "$(PRIVATE_EXPORT_CFLAGS)" >$@
-else
- $(hide) touch $@
-endif
-export_cflags :=
+EXPORTS_LIST := $(EXPORTS_LIST) $(intermediates)
+EXPORTS.$(intermediates).FLAGS := $(foreach d,$(LOCAL_EXPORT_C_INCLUDE_DIRS),-I $(d))
+EXPORTS.$(intermediates).DEPS := $(LOCAL_EXPORT_C_INCLUDE_DEPS)
include $(BUILD_SYSTEM)/allowed_ndk_types.mk
diff --git a/core/definitions.mk b/core/definitions.mk
index 16bec84..f32a995 100644
--- a/core/definitions.mk
+++ b/core/definitions.mk
@@ -1107,7 +1107,7 @@
###########################################################
define c-includes
$(addprefix -I , $(PRIVATE_C_INCLUDES)) \
-$$(cat $(PRIVATE_IMPORT_INCLUDES))\
+$(foreach i,$(PRIVATE_IMPORTED_INCLUDES),$(EXPORTS.$(i)))\
$(if $(PRIVATE_NO_DEFAULT_COMPILER_FLAGS),,\
$(addprefix -I ,\
$(filter-out $(PRIVATE_C_INCLUDES), \
diff --git a/core/main.mk b/core/main.mk
index 9f4b86c..a240b35 100644
--- a/core/main.mk
+++ b/core/main.mk
@@ -973,6 +973,27 @@
endif
# -------------------------------------------------------------------
+# Handle exported/imported includes
+
+# Recursively calculate flags
+$(foreach export,$(EXPORTS_LIST), \
+ $(eval EXPORTS.$$(export) = $$(EXPORTS.$(export).FLAGS) \
+ $(foreach dep,$(EXPORTS.$(export).REEXPORT),$$(EXPORTS.$(dep)))))
+
+# Recursively calculate dependencies
+$(foreach export,$(EXPORTS_LIST), \
+ $(eval EXPORT_DEPS.$$(export) = $$(EXPORTS.$(export).DEPS) \
+ $(foreach dep,$(EXPORTS.$(export).REEXPORT),$$(EXPORT_DEPS.$(dep)))))
+
+# Converts the recursive variables to simple variables so that we don't have to
+# evaluate them for every .o rule
+$(foreach export,$(EXPORTS_LIST),$(eval EXPORTS.$$(export) := $$(strip $$(EXPORTS.$$(export)))))
+$(foreach export,$(EXPORTS_LIST),$(eval EXPORT_DEPS.$$(export) := $$(sort $$(EXPORT_DEPS.$$(export)))))
+
+# Add dependencies
+$(foreach export,$(EXPORTS_LIST),$(eval $(call add-dependency,$$(EXPORTS.$$(export).USERS),$$(EXPORT_DEPS.$$(export)))))
+
+# -------------------------------------------------------------------
# Figure out our module sets.
#
# Of the modules defined by the component makefiles,
diff --git a/core/soong_cc_prebuilt.mk b/core/soong_cc_prebuilt.mk
index 301f985..34dd3e8 100644
--- a/core/soong_cc_prebuilt.mk
+++ b/core/soong_cc_prebuilt.mk
@@ -65,16 +65,9 @@
ifneq ($(filter STATIC_LIBRARIES SHARED_LIBRARIES HEADER_LIBRARIES,$(LOCAL_MODULE_CLASS)),)
# Soong module is a static or shared library
- export_includes := $(intermediates)/export_includes
- $(export_includes): PRIVATE_EXPORT_CFLAGS := $(LOCAL_EXPORT_CFLAGS)
- $(export_includes): $(LOCAL_EXPORT_C_INCLUDE_DEPS)
- @echo Export includes file: $< -- $@
- $(hide) mkdir -p $(dir $@) && rm -f $@
- ifdef LOCAL_EXPORT_CFLAGS
- $(hide) echo "$(PRIVATE_EXPORT_CFLAGS)" >$@
- else
- $(hide) touch $@
- endif
+ EXPORTS_LIST := $(EXPORTS_LIST) $(intermediates)
+ EXPORTS.$(intermediates).FLAGS := $(LOCAL_EXPORT_CFLAGS)
+ EXPORTS.$(intermediates).DEPS := $(LOCAL_EXPORT_C_INCLUDE_DEPS)
ifdef LOCAL_SOONG_TOC
$(eval $(call copy-one-file,$(LOCAL_SOONG_TOC),$(LOCAL_BUILT_MODULE).toc))