introduce AUX build class of targets
AUX is a new class, similar to TARGET
While TARGET defines toolchain for Application Processors
AUX is defining toolchains for arbitrary utility cores (DSPs, GPUs,
MCUs, etc). This allows building of non-android sources as part
of Android tree and avoid using prebuilts if source code is avaliable
Bug: 29635686
Change-Id: Ie755ea054b16c3e86369f5fb2ba6eb0b384af77f
Signed-off-by: Alexey Polyudov <apolyudov@google.com>
diff --git a/core/aux_executable.mk b/core/aux_executable.mk
new file mode 100644
index 0000000..daf30e7
--- /dev/null
+++ b/core/aux_executable.mk
@@ -0,0 +1,96 @@
+# caller might have included aux_toolchain, e.g. if custom build steps are defined
+ifeq ($(LOCAL_IS_AUX_MODULE),)
+include $(BUILD_SYSTEM)/aux_toolchain.mk
+endif
+
+ifeq ($(AUX_BUILD_NOT_COMPATIBLE),)
+
+###########################################################
+## Standard rules for building an executable file.
+##
+## Additional inputs from base_rules.make:
+## None.
+###########################################################
+
+ifeq ($(strip $(LOCAL_MODULE_CLASS)),)
+LOCAL_MODULE_CLASS := EXECUTABLES
+endif
+
+$(call $(aux-executable-hook))
+
+###########################################################
+## Standard rules for building any target-side binaries
+## with dynamic linkage (dynamic libraries or executables
+## that link with dynamic libraries)
+##
+## Files including this file must define a rule to build
+## the target $(linked_module).
+###########################################################
+
+# The name of the target file, without any path prepended.
+# This duplicates logic from base_rules.mk because we need to
+# know its results before base_rules.mk is included.
+include $(BUILD_SYSTEM)/configure_module_stem.mk
+
+intermediates := $(call local-intermediates-dir)
+
+# Define the target that is the unmodified output of the linker.
+# The basename of this target must be the same as the final output
+# binary name, because it's used to set the "soname" in the binary.
+# The includer of this file will define a rule to build this target.
+linked_module := $(intermediates)/LINKED/$(my_built_module_stem)
+
+ALL_ORIGINAL_DYNAMIC_BINARIES += $(linked_module)
+
+# Because AUX_SYMBOL_FILTER_FILE depends on ALL_ORIGINAL_DYNAMIC_BINARIES,
+# the linked_module rules won't necessarily inherit the PRIVATE_
+# variables from LOCAL_BUILT_MODULE. This tells binary.make to explicitly
+# define the PRIVATE_ variables for linked_module as well as for
+# LOCAL_BUILT_MODULE.
+LOCAL_INTERMEDIATE_TARGETS += $(linked_module)
+
+###################################
+include $(BUILD_SYSTEM)/binary.mk
+###################################
+
+aux_output := $(linked_module)
+
+ifneq ($(LOCAL_CUSTOM_BUILD_STEP_INPUT),)
+ifneq ($(LOCAL_CUSTOM_BUILD_STEP_OUTPUT),)
+
+# injecting custom build steps
+$(LOCAL_CUSTOM_BUILD_STEP_INPUT): $(aux_output)
+ @echo "$(AUX_DISPLAY) custom copy: $(PRIVATE_MODULE) ($@)"
+ @mkdir -p $(dir $@)
+ $(hide) $(copy-file-to-target)
+
+aux_output := $(LOCAL_CUSTOM_BUILD_STEP_OUTPUT)
+
+endif
+endif
+
+$(LOCAL_BUILT_MODULE): $(aux_output)
+ @echo "$(AUX_DISPLAY) final copy: $(PRIVATE_MODULE) ($@)"
+ @mkdir -p $(dir $@)
+ $(hide) $(copy-file-to-target)
+
+INSTALLED_AUX_TARGETS += $(LOCAL_INSTALLED_MODULE)
+
+$(cleantarget): PRIVATE_CLEAN_FILES += \
+ $(linked_module) \
+
+# Define PRIVATE_ variables from global vars
+$(linked_module): PRIVATE_TARGET_OUT_INTERMEDIATE_LIBRARIES := $(AUX_OUT_INTERMEDIATE_LIBRARIES)
+$(linked_module): PRIVATE_POST_LINK_CMD := $(LOCAL_POST_LINK_CMD)
+
+ifeq ($(LOCAL_FORCE_STATIC_EXECUTABLE),true)
+$(linked_module): $(all_objects) $(all_libraries) $(LOCAL_ADDITIONAL_DEPENDENCIES)
+ $(transform-o-to-aux-static-executable)
+ $(PRIVATE_POST_LINK_CMD)
+else
+$(linked_module): $(all_objects) $(all_libraries) $(LOCAL_ADDITIONAL_DEPENDENCIES)
+ $(transform-o-to-aux-executable)
+ $(PRIVATE_POST_LINK_CMD)
+endif
+
+endif # AUX_BUILD_NOT_COMPATIBLE