Add Header Library support to Make
We currently use static libraries without any source files to represent
header libraries, but Soong actually has cc_library_headers. So to
export those in a separate namespace from static libraries, implement
them in Make as well.
This also adds a nice pretty-warning / pretty-error macro that can be
used to print out standard warning messages pointing to the real source
file having the problem.
Test: Use a header library exported by Soong in a Make module
Change-Id: I3486539e247524cb82a20620745fc7be03014e14
diff --git a/core/header_library.mk b/core/header_library.mk
new file mode 100644
index 0000000..5144679
--- /dev/null
+++ b/core/header_library.mk
@@ -0,0 +1,72 @@
+$(call record-module-type,HEADER_LIBRARY)
+ifdef LOCAL_IS_HOST_MODULE
+ my_prefix := HOST_
+ LOCAL_HOST_PREFIX :=
+else
+ my_prefix := TARGET_
+endif
+include $(BUILD_SYSTEM)/multilib.mk
+
+ifndef my_module_multilib
+ # libraries default to building for both architecturess
+ my_module_multilib := both
+endif
+
+LOCAL_2ND_ARCH_VAR_PREFIX :=
+include $(BUILD_SYSTEM)/module_arch_supported.mk
+
+ifeq ($(my_module_arch_supported),true)
+ include $(BUILD_SYSTEM)/header_library_internal.mk
+endif
+
+ifdef $(my_prefix)2ND_ARCH
+ LOCAL_2ND_ARCH_VAR_PREFIX := $($(my_prefix)2ND_ARCH_VAR_PREFIX)
+ include $(BUILD_SYSTEM)/module_arch_supported.mk
+
+ ifeq ($(my_module_arch_supported),true)
+ # Build for 2ND_ARCH
+ OVERRIDE_BUILT_MODULE_PATH :=
+ LOCAL_BUILT_MODULE :=
+ LOCAL_INSTALLED_MODULE :=
+ LOCAL_INTERMEDIATE_TARGETS :=
+ include $(BUILD_SYSTEM)/header_library_internal.mk
+ endif
+ LOCAL_2ND_ARCH_VAR_PREFIX :=
+endif # 2ND_ARCH
+
+ifdef LOCAL_IS_HOST_MODULE
+ ifdef HOST_CROSS_OS
+ my_prefix := HOST_CROSS_
+ LOCAL_HOST_PREFIX := $(my_prefix)
+
+ include $(BUILD_SYSTEM)/module_arch_supported.mk
+
+ ifeq ($(my_module_arch_supported),true)
+ # Build for 2ND_ARCH
+ OVERRIDE_BUILT_MODULE_PATH :=
+ LOCAL_BUILT_MODULE :=
+ LOCAL_INSTALLED_MODULE :=
+ LOCAL_INTERMEDIATE_TARGETS :=
+ include $(BUILD_SYSTEM)/header_library_internal.mk
+ endif
+
+ ifdef HOST_CROSS_2ND_ARCH
+ LOCAL_2ND_ARCH_VAR_PREFIX := $(HOST_CROSS_2ND_ARCH_VAR_PREFIX)
+ include $(BUILD_SYSTEM)/module_arch_supported.mk
+
+ ifeq ($(my_module_arch_supported),true)
+ # Build for HOST_CROSS_2ND_ARCH
+ OVERRIDE_BUILT_MODULE_PATH :=
+ LOCAL_BUILT_MODULE :=
+ LOCAL_INSTALLED_MODULE :=
+ LOCAL_INTERMEDIATE_TARGETS :=
+ include $(BUILD_SYSTEM)/header_library_internal.mk
+ endif
+ LOCAL_2ND_ARCH_VAR_PREFIX :=
+ endif
+
+ LOCAL_HOST_PREFIX :=
+ endif
+endif
+
+my_module_arch_supported :=