Merge "releasetools: Support generating downgrade incremental OTAs."
diff --git a/core/Makefile b/core/Makefile
index 7bb9d17..2d7f76d 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -47,6 +47,20 @@
 unique_product_copy_files_destinations :=
 
 # -----------------------------------------------------------------
+# Define rules to copy headers defined in copy_headers.mk
+# If more than one makefile declared a header, print a warning,
+# then copy the last one defined. This matches the previous make
+# behavior.
+$(foreach dest,$(ALL_COPIED_HEADERS), \
+    $(eval _srcs := $(ALL_COPIED_HEADERS.$(dest).SRC)) \
+    $(eval _src := $(word $(words $(_srcs)),$(_srcs))) \
+    $(if $(call streq,$(_src),$(_srcs)),, \
+        $(warning Duplicate header copy: $(dest)) \
+	$(warning Defined in: $(ALL_COPIED_HEADERS.$(dest).MAKEFILE))) \
+    $(eval $(call copy-one-header,$(_src),$(dest))))
+all_copied_headers: $(ALL_COPIED_HEADERS)
+
+# -----------------------------------------------------------------
 # docs/index.html
 ifeq (,$(TARGET_BUILD_APPS))
 gen := $(OUT_DOCS)/index.html
@@ -468,7 +482,6 @@
 # the ramdisk
 INTERNAL_RAMDISK_FILES := $(filter $(TARGET_ROOT_OUT)/%, \
 	$(ALL_PREBUILT) \
-	$(ALL_COPIED_HEADERS) \
 	$(ALL_GENERATED_SOURCES) \
 	$(ALL_DEFAULT_INSTALLED_MODULES))
 
@@ -1032,7 +1045,6 @@
 
 INTERNAL_SYSTEMIMAGE_FILES := $(filter $(TARGET_OUT)/%, \
     $(ALL_PREBUILT) \
-    $(ALL_COPIED_HEADERS) \
     $(ALL_GENERATED_SOURCES) \
     $(ALL_DEFAULT_INSTALLED_MODULES) \
     $(PDK_FUSION_SYSIMG_FILES) \
@@ -1949,7 +1961,6 @@
 ifeq ($(strip $(ATREE_FILES)),)
 ATREE_FILES := \
 	$(ALL_PREBUILT) \
-	$(ALL_COPIED_HEADERS) \
 	$(ALL_DEFAULT_INSTALLED_MODULES) \
 	$(INSTALLED_RAMDISK_TARGET) \
 	$(ALL_DOCS) \
diff --git a/core/base_rules.mk b/core/base_rules.mk
index 2fe0616..40e546e 100644
--- a/core/base_rules.mk
+++ b/core/base_rules.mk
@@ -323,23 +323,22 @@
 endif
 
 # Rule to install the module's companion init.rc.
-my_init_rc := $(LOCAL_INIT_RC_$(my_32_64_bit_suffix))
-my_init_rc_src :=
 my_init_rc_installed :=
-ifndef my_init_rc
-my_init_rc := $(LOCAL_INIT_RC)
+my_init_rc_pairs :=
+my_init_rc := $(LOCAL_INIT_RC_$(my_32_64_bit_suffix))
+ifneq ($(my_init_rc),)
+my_init_rc_pairs += $(LOCAL_PATH)/$(my_init_rc):$(TARGET_OUT$(partition_tag)_ETC)/init/$(notdir $(my_init_rc))
+endif
+ifneq ($(LOCAL_INIT_RC),)
+my_init_rc_pairs += $(LOCAL_PATH)/$(LOCAL_INIT_RC):$(TARGET_OUT$(partition_tag)_ETC)/init/$(notdir $(LOCAL_INIT_RC))
 # Make sure we don't define the rule twice in multilib module.
 LOCAL_INIT_RC :=
 endif
-ifdef my_init_rc
-my_init_rc_src := $(LOCAL_PATH)/$(my_init_rc)
-my_init_rc_installed := $(TARGET_OUT$(partition_tag)_ETC)/init/$(notdir $(my_init_rc_src))
-$(my_init_rc_installed) : $(my_init_rc_src) | $(ACP)
-	@echo "Install: $@"
-	$(copy-file-to-new-target)
+ifneq ($(my_init_rc_pairs),)
+my_init_rc_installed := $(call copy-many-files,$(my_init_rc_pairs))
 
 $(my_register_name) : $(my_init_rc_installed)
-endif # my_init_rc
+endif # my_init_rc_pairs
 endif # !LOCAL_UNINSTALLABLE_MODULE
 
 ###########################################################
@@ -392,7 +391,7 @@
 ALL_MODULES.$(my_register_name).BUILT_INSTALLED := \
     $(strip $(ALL_MODULES.$(my_register_name).BUILT_INSTALLED) \
     $(LOCAL_BUILT_MODULE):$(LOCAL_INSTALLED_MODULE) \
-    $(addprefix $(my_init_rc_src):,$(my_init_rc_installed)))
+    $(my_init_rc_pairs))
 endif
 ifdef LOCAL_PICKUP_FILES
 # Files or directories ready to pick up by the build system
diff --git a/core/binary.mk b/core/binary.mk
index 1c7ffda..aab1248 100644
--- a/core/binary.mk
+++ b/core/binary.mk
@@ -1346,6 +1346,21 @@
 my_cppflags := $(filter-out $(my_illegal_flags),$(my_cppflags))
 my_conlyflags := $(filter-out $(my_illegal_flags),$(my_conlyflags))
 
+# We can enforce some rules more strictly in the code we own. my_strict
+# indicates if this is code that we can be stricter with. If we have rules that
+# we want to apply to *our* code (but maybe can't for vendor/device specific
+# things), we could extend this to be a ternary value.
+my_strict := true
+ifneq ($(filter external/%,$(LOCAL_PATH)),)
+    my_strict := false
+endif
+
+# Can be used to make some annotations stricter for code we can fix (such as
+# when we mark functions as deprecated).
+ifeq ($(my_strict),true)
+    my_cflags += -DANDROID_STRICT
+endif
+
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_YACCFLAGS := $(LOCAL_YACCFLAGS)
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_ASFLAGS := $(my_asflags)
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_CONLYFLAGS := $(my_conlyflags)
diff --git a/core/clang/versions.mk b/core/clang/versions.mk
index 7106899..96872c2 100644
--- a/core/clang/versions.mk
+++ b/core/clang/versions.mk
@@ -1,5 +1,5 @@
 ## Clang/LLVM release versions.
 
 LLVM_RELEASE_VERSION := 3.8
-LLVM_PREBUILTS_VERSION ?= clang-2577113
+LLVM_PREBUILTS_VERSION ?= clang-2629532
 LLVM_PREBUILTS_BASE ?= prebuilts/clang/host
diff --git a/core/combo/arch/arm/armv7-a-neon.mk b/core/combo/arch/arm/armv7-a-neon.mk
index 5dc1fec..5d5b050 100644
--- a/core/combo/arch/arm/armv7-a-neon.mk
+++ b/core/combo/arch/arm/armv7-a-neon.mk
@@ -6,6 +6,8 @@
 ARCH_ARM_HAVE_VFP_D32           := true
 ARCH_ARM_HAVE_NEON              := true
 
+local_arch_has_lpae := false
+
 ifneq (,$(filter cortex-a15 krait denver,$(TARGET_$(combo_2nd_arch_prefix)CPU_VARIANT)))
 	# TODO: krait is not a cortex-a15, we set the variant to cortex-a15 so that
 	#       hardware divide operations are generated. This should be removed and a
@@ -13,9 +15,7 @@
 	#       core/clang/arm.mk.
 	arch_variant_cflags := -mcpu=cortex-a15
 
-	# Fake an ARM compiler flag as these processors support LPAE which GCC/clang
-	# don't advertise.
-	arch_variant_cflags += -D__ARM_FEATURE_LPAE=1
+	local_arch_has_lpae := true
 	arch_variant_ldflags := \
 		-Wl,--no-fix-cortex-a8
 else
@@ -26,6 +26,8 @@
 else
 ifneq (,$(filter cortex-a7 cortex-a53 cortex-a53.a57,$(TARGET_$(combo_2nd_arch_prefix)CPU_VARIANT)))
 	arch_variant_cflags := -mcpu=cortex-a7
+
+	local_arch_has_lpae := true
 	arch_variant_ldflags := \
 		-Wl,--no-fix-cortex-a8
 else
@@ -37,6 +39,16 @@
 endif
 endif
 
+ifeq (true,$(local_arch_has_lpae))
+	# Fake an ARM compiler flag as these processors support LPAE which GCC/clang
+	# don't advertise.
+	# TODO This is a hack and we need to add it for each processor that supports LPAE until some
+	# better solution comes around. See Bug 27340895
+	arch_variant_cflags += -D__ARM_FEATURE_LPAE=1
+endif
+
+local_arch_has_lpae :=
+
 arch_variant_cflags += \
     -mfloat-abi=softfp \
     -mfpu=neon
diff --git a/core/copy_headers.mk b/core/copy_headers.mk
index e16560f..7d5a5d9 100644
--- a/core/copy_headers.mk
+++ b/core/copy_headers.mk
@@ -18,8 +18,10 @@
       $(if $(LOCAL_COPY_HEADERS_TO),\
         $($(my_prefix)OUT_HEADERS)/$(LOCAL_COPY_HEADERS_TO)/$(notdir $(header)),\
         $($(my_prefix)OUT_HEADERS)/$(notdir $(header)))) \
-  $(eval $(call copy-one-header,$(_chFrom),$(_chTo))) \
-  $(eval all_copied_headers: $(_chTo)) \
+  $(eval ALL_COPIED_HEADERS.$(_chTo).MAKEFILE += $(LOCAL_MODULE_MAKEFILE)) \
+  $(eval ALL_COPIED_HEADERS.$(_chTo).SRC += $(_chFrom)) \
+  $(if $(filter $(_chTo),$(ALL_COPIED_HEADERS)),, \
+      $(eval ALL_COPIED_HEADERS += $(_chTo))) \
  )
 _chFrom :=
 _chTo :=
diff --git a/envsetup.sh b/envsetup.sh
index 61b9ff0..9489d21 100644
--- a/envsetup.sh
+++ b/envsetup.sh
@@ -644,11 +644,18 @@
     local T="$1"
     test "$WITH_STATIC_ANALYZER" = "0" && unset WITH_STATIC_ANALYZER
     if [ -n "$WITH_STATIC_ANALYZER" ]; then
+        # Use scan-build to collect all static analyzer reports into directory
+        # /tmp/scan-build-yyyy-mm-dd-hhmmss-*
+        # The clang compiler passed by --use-analyzer here is not important.
+        # build/core/binary.mk will set CLANG_CXX and CLANG before calling
+        # c++-analyzer and ccc-analyzer.
+        local CLANG_VERSION=$(get_build_var LLVM_PREBUILTS_VERSION)
+        local BUILD_OS=$(get_build_var BUILD_OS)
+        local CLANG_DIR="$T/prebuilts/clang/host/${BUILD_OS}-x86/${CLANG_VERSION}"
         echo "\
-$T/prebuilts/misc/linux-x86/analyzer/tools/scan-build/scan-build \
---use-analyzer $T/prebuilts/misc/linux-x86/analyzer/bin/analyzer \
---status-bugs \
---top=$T"
+${CLANG_DIR}/tools/scan-build/bin/scan-build \
+--use-analyzer ${CLANG_DIR}/bin/clang \
+--status-bugs"
     fi
 }