Remove variables exported by Soong
LLVM_RELEASE_VERSION is unused from envsetup.sh and during product
config loading. LLVM_PREBUILTS_VERSION is still used in envsetup.sh, so
needs to stay.
Delay reading core/clang/config.mk until after Soong's variables are
read so that we don't need a copy of LLVM_PREBUILTS_BASE.
Test: Compare build-aosp_flounder.ninja
Change-Id: I85b5836a2230838c8f3766fb19c6108fc5c9ca50
diff --git a/core/clang/config.mk b/core/clang/config.mk
index 60e0641..b4fe708 100644
--- a/core/clang/config.mk
+++ b/core/clang/config.mk
@@ -1,14 +1,7 @@
## Clang configurations.
-LLVM_PREBUILTS_PATH := $(LLVM_PREBUILTS_BASE)/$(BUILD_OS)-x86/$(LLVM_PREBUILTS_VERSION)/bin
LLVM_RTLIB_PATH := $(LLVM_PREBUILTS_PATH)/../lib64/clang/$(LLVM_RELEASE_VERSION)/lib/linux/
-# These will come from Soong, drop the environment versions
-unexport CLANG
-unexport CLANG_CXX
-unexport CCC_CC
-unexport CCC_CXX
-
CLANG_TBLGEN := $(BUILD_OUT_EXECUTABLES)/clang-tblgen$(BUILD_EXECUTABLE_SUFFIX)
LLVM_TBLGEN := $(BUILD_OUT_EXECUTABLES)/llvm-tblgen$(BUILD_EXECUTABLE_SUFFIX)
diff --git a/core/clang/versions.mk b/core/clang/versions.mk
index 03341d9..d9c8aab 100644
--- a/core/clang/versions.mk
+++ b/core/clang/versions.mk
@@ -1,5 +1,3 @@
## Clang/LLVM release versions.
-LLVM_RELEASE_VERSION := 3.8
LLVM_PREBUILTS_VERSION ?= clang-3289846
-LLVM_PREBUILTS_BASE ?= prebuilts/clang/host
diff --git a/core/config.mk b/core/config.mk
index 9a35b2f..2f43f46 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -716,8 +716,11 @@
$(TARGET_2ND_ARCH_VAR_PREFIX)DEX2OAT_TARGET_INSTRUCTION_SET_FEATURES := default
endif
-# define clang/llvm tools and global flags
-include $(BUILD_SYSTEM)/clang/config.mk
+# These will come from Soong, drop the environment versions
+unexport CLANG
+unexport CLANG_CXX
+unexport CCC_CC
+unexport CCC_CXX
# ###############################################################
# Collect a list of the SDK versions that we could compile against
diff --git a/core/main.mk b/core/main.mk
index 5a3042a..77b213c 100644
--- a/core/main.mk
+++ b/core/main.mk
@@ -50,6 +50,8 @@
include $(SOONG_MAKEVARS_MK)
+include $(BUILD_SYSTEM)/clang/config.mk
+
# Write the build number to a file so it can be read back in
# without changing the command line every time. Avoids rebuilds
# when using ninja.
