Add TARGET_GCC_VERSION

Default to 4.6, but can overwritten to something else in
prebuilts/gcc/$os/$arch/$arch-linux-android*-$ver

Change-Id: I16f99d642b8ff8e831d392261a0c536041107051

5 files changed, 18 insertions, 13 deletions

diff --git a/core/combo/TARGET_linux-arm.mk b/core/combo/TARGET_linux-arm.mk
index 75b2742..17359e9 100644
--- a/core/combo/TARGET_linux-arm.mk
+++ b/core/combo/TARGET_linux-arm.mk
@@ -43,7 +43,7 @@ include $(TARGET_ARCH_SPECIFIC_MAKEFILE)
 
 # You can set TARGET_TOOLS_PREFIX to get gcc from somewhere else
 ifeq ($(strip $(TARGET_TOOLS_PREFIX)),)
-TARGET_TOOLCHAIN_ROOT := prebuilts/gcc/$(HOST_PREBUILT_TAG)/arm/arm-linux-androideabi-4.6
+TARGET_TOOLCHAIN_ROOT := prebuilts/gcc/$(HOST_PREBUILT_TAG)/arm/arm-linux-androideabi-$(TARGET_GCC_VERSION)
 TARGET_TOOLS_PREFIX := $(TARGET_TOOLCHAIN_ROOT)/bin/arm-linux-androideabi-
 endif
 
@@ -114,11 +114,11 @@ TARGET_GLOBAL_CFLAGS += \
 			-include $(android_config_h) \
 			-I $(arch_include_dir)
 
-# This warning causes dalvik not to build with gcc 4.6.x and -Werror.
+# This warning causes dalvik not to build with gcc 4.6+ and -Werror.
 # We cannot turn it off blindly since the option is not available
 # in gcc-4.4.x.  We also want to disable sincos optimization globally
 # by turning off the builtin sin function.
-ifneq ($(filter 4.6 4.6.%, $(shell $(TARGET_CC) --version)),)
+ifneq ($(filter 4.6 4.6.% 4.7 4.7.%, $(shell $(TARGET_CC) --version)),)
 TARGET_GLOBAL_CFLAGS += -Wno-unused-but-set-variable -fno-builtin-sin \
 			-fno-strict-volatile-bitfields
 endif
diff --git a/core/combo/TARGET_linux-mips.mk b/core/combo/TARGET_linux-mips.mk
index 1e649ec..8aa6495 100644
--- a/core/combo/TARGET_linux-mips.mk
+++ b/core/combo/TARGET_linux-mips.mk
@@ -43,7 +43,7 @@ include $(TARGET_ARCH_SPECIFIC_MAKEFILE)
 
 # You can set TARGET_TOOLS_PREFIX to get gcc from somewhere else
 ifeq ($(strip $(TARGET_TOOLS_PREFIX)),)
-TARGET_TOOLCHAIN_ROOT := prebuilts/gcc/$(HOST_PREBUILT_TAG)/mips/mipsel-linux-android-4.6
+TARGET_TOOLCHAIN_ROOT := prebuilts/gcc/$(HOST_PREBUILT_TAG)/mips/mipsel-linux-android-$(TARGET_GCC_VERSION)
 TARGET_TOOLS_PREFIX := $(TARGET_TOOLCHAIN_ROOT)/bin/mipsel-linux-android-
 endif
 
@@ -93,10 +93,10 @@ TARGET_GLOBAL_CFLAGS += \
 			-include $(android_config_h) \
 			-I $(arch_include_dir)
 
-# This warning causes dalvik not to build with gcc 4.6.x and -Werror.
+# This warning causes dalvik not to build with gcc 4.6+ and -Werror.
 # We cannot turn it off blindly since the option is not available
 # in gcc-4.4.x.
-ifneq ($(filter 4.6 4.6.%, $(shell $(TARGET_CC) --version)),)
+ifneq ($(filter 4.6 4.6.% 4.7 4.7.%, $(shell $(TARGET_CC) --version)),)
 TARGET_GLOBAL_CFLAGS += -Wno-unused-but-set-variable \
                         -fno-strict-volatile-bitfields
 endif
diff --git a/core/combo/TARGET_linux-x86.mk b/core/combo/TARGET_linux-x86.mk
index 07424b5..e691b6e 100644
--- a/core/combo/TARGET_linux-x86.mk
+++ b/core/combo/TARGET_linux-x86.mk
@@ -36,7 +36,7 @@ include $(TARGET_ARCH_SPECIFIC_MAKEFILE)
 
 # You can set TARGET_TOOLS_PREFIX to get gcc from somewhere else
 ifeq ($(strip $(TARGET_TOOLS_PREFIX)),)
-TARGET_TOOLCHAIN_ROOT := prebuilts/gcc/$(HOST_PREBUILT_TAG)/x86/i686-linux-android-4.6
+TARGET_TOOLCHAIN_ROOT := prebuilts/gcc/$(HOST_PREBUILT_TAG)/x86/i686-linux-android-$(TARGET_GCC_VERSION)
 TARGET_TOOLS_PREFIX := $(TARGET_TOOLCHAIN_ROOT)/bin/i686-linux-android-
 endif
 
diff --git a/core/config.mk b/core/config.mk
index a894444..06c9074 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -225,6 +225,11 @@ ifeq ($(TARGET_CPU_ABI),)
 endif
 TARGET_CPU_ABI2 := $(strip $(TARGET_CPU_ABI2))
 
+# default target GCC version
+ifeq ($(strip $(TARGET_GCC_VERSION)),)
+TARGET_GCC_VERSION := 4.6
+endif
+
 # $(1): os/arch
 define select-android-config-h
 system/core/include/arch/$(1)/AndroidConfig.h
diff --git a/core/dumpvar.mk b/core/dumpvar.mk
index 5298f35..c47aa0f 100644
--- a/core/dumpvar.mk
+++ b/core/dumpvar.mk
@@ -11,23 +11,23 @@ endif
 
 # Add the ARM toolchain bin dir if it actually exists
 ifeq ($(TARGET_ARCH),arm)
-    ifneq ($(wildcard $(PWD)/prebuilts/gcc/$(HOST_PREBUILT_TAG)/arm/arm-linux-androideabi-4.6/bin),)
+    ifneq ($(wildcard $(PWD)/prebuilts/gcc/$(HOST_PREBUILT_TAG)/arm/arm-linux-androideabi-$(TARGET_GCC_VERSION)/bin),)
         # this should be copied to HOST_OUT_EXECUTABLES instead
-        ABP:=$(ABP):$(PWD)/prebuilts/gcc/$(HOST_PREBUILT_TAG)/arm/arm-linux-androideabi-4.6/bin
+        ABP:=$(ABP):$(PWD)/prebuilts/gcc/$(HOST_PREBUILT_TAG)/arm/arm-linux-androideabi-$(TARGET_GCC_VERSION)/bin
     endif
 else ifeq ($(TARGET_ARCH),x86)
 
 # Add the x86 toolchain bin dir if it actually exists
-    ifneq ($(wildcard $(PWD)/prebuilts/gcc/$(HOST_PREBUILT_TAG)/x86/i686-linux-android-4.6/bin),)
+    ifneq ($(wildcard $(PWD)/prebuilts/gcc/$(HOST_PREBUILT_TAG)/x86/i686-linux-android-$(TARGET_GCC_VERSION)/bin),)
         # this should be copied to HOST_OUT_EXECUTABLES instead
-        ABP:=$(ABP):$(PWD)/prebuilts/gcc/$(HOST_PREBUILT_TAG)/x86/i686-linux-android-4.6/bin
+        ABP:=$(ABP):$(PWD)/prebuilts/gcc/$(HOST_PREBUILT_TAG)/x86/i686-linux-android-$(TARGET_GCC_VERSION)/bin
     endif
 endif
 
 # Add the mips toolchain bin dir if it actually exists
-ifneq ($(wildcard $(PWD)/prebuilts/gcc/$(HOST_PREBUILT_TAG)/mips/mipsel-linux-android-4.6/bin),)
+ifneq ($(wildcard $(PWD)/prebuilts/gcc/$(HOST_PREBUILT_TAG)/mips/mipsel-linux-android-$(TARGET_GCC_VERSION)/bin),)
     # this should be copied to HOST_OUT_EXECUTABLES instead
-    ABP:=$(ABP):$(PWD)/prebuilts/gcc/$(HOST_PREBUILT_TAG)/mips/mipsel-linux-android-4.6/bin
+    ABP:=$(ABP):$(PWD)/prebuilts/gcc/$(HOST_PREBUILT_TAG)/mips/mipsel-linux-android-$(TARGET_GCC_VERSION)/bin
 endif
 
 ANDROID_BUILD_PATHS := $(ABP)