Support host multilib build
This change basically ported our target multilib to the host side.
It supports 2 host build modes: x86 and x86_64 multilib build.
For now you need to set "BUILD_HOST_64bit=true" to switch to x86_64
multilib build. Later we'll default to x86_64 build and have a flag
to force 32-bit only build, which may be needed by SDK build.
In host module definition, like in target ones, you can use the
following
LOCAL variables to set up multilib configuration:
LOCAL_MULTILIB: can be "both", "first", "32" or "64".
It also supports the same set of arch or 32-vs-64 specific LOCAL
variables.
By default, it builds only for the first arch.
To keep path compatibility, in x86_64 build files are still output to
out/host/linux-x86; Both 32-bit and 64-bit executables are in
out/host/linux-86/bin;
In x86_64 build 32-bit shared libraries are installed to
out/host/linux-x86/lib32
and 64-bit shared libraries are installed to out/host/linux-x86/lib;
32-bit object files are output to out/host/linux-x86/obj32 and 64-bit
object files
are output to out/host/linux-x86/obj.
Bug: 13751317
Change-Id: I6044f83b7db369a33e05209e8c588eb6dc83409f
diff --git a/core/clang/HOST_x86.mk b/core/clang/HOST_x86.mk
index ee61e5e..510a74d 100644
--- a/core/clang/HOST_x86.mk
+++ b/core/clang/HOST_x86.mk
@@ -1,6 +1,6 @@
include $(BUILD_SYSTEM)/clang/x86.mk
-include $(BUILD_SYSTEM)/clang/x86_common.mk
+include $(BUILD_SYSTEM)/clang/HOST_x86_common.mk
ifeq ($(HOST_OS),linux)
CLANG_CONFIG_x86_HOST_TRIPLE := i686-linux-gnu
@@ -44,21 +44,21 @@
$(CLANG_CONFIG_x86_HOST_COMBO_EXTRA_LDFLAGS) \
-target $(CLANG_CONFIG_x86_HOST_TRIPLE)
-define convert-to-host-clang-flags
+define $(clang_2nd_arch_prefix)convert-to-host-clang-flags
$(strip \
$(call subst-clang-incompatible-x86-flags,\
$(filter-out $(CLANG_CONFIG_x86_UNKNOWN_CFLAGS),\
$(1))))
endef
-CLANG_HOST_GLOBAL_CFLAGS := \
- $(call convert-to-host-clang-flags,$(HOST_GLOBAL_CFLAGS)) \
+$(clang_2nd_arch_prefix)CLANG_HOST_GLOBAL_CFLAGS := \
+ $(call $(clang_2nd_arch_prefix)convert-to-host-clang-flags,$($(clang_2nd_arch_prefix)HOST_GLOBAL_CFLAGS)) \
$(CLANG_CONFIG_x86_HOST_EXTRA_CFLAGS)
-CLANG_HOST_GLOBAL_CPPFLAGS := \
- $(call convert-to-host-clang-flags,$(HOST_GLOBAL_CPPFLAGS)) \
+$(clang_2nd_arch_prefix)CLANG_HOST_GLOBAL_CPPFLAGS := \
+ $(call $(clang_2nd_arch_prefix)convert-to-host-clang-flags,$($(clang_2nd_arch_prefix)HOST_GLOBAL_CPPFLAGS)) \
$(CLANG_CONFIG_x86_HOST_EXTRA_CPPFLAGS)
-CLANG_HOST_GLOBAL_LDFLAGS := \
- $(call convert-to-host-clang-flags,$(HOST_GLOBAL_LDFLAGS)) \
+$(clang_2nd_arch_prefix)CLANG_HOST_GLOBAL_LDFLAGS := \
+ $(call $(clang_2nd_arch_prefix)convert-to-host-clang-flags,$($(clang_2nd_arch_prefix)HOST_GLOBAL_LDFLAGS)) \
$(CLANG_CONFIG_x86_HOST_EXTRA_LDFLAGS)
diff --git a/core/clang/HOST_x86_64.mk b/core/clang/HOST_x86_64.mk
index d60e15f..6b94525 100644
--- a/core/clang/HOST_x86_64.mk
+++ b/core/clang/HOST_x86_64.mk
@@ -1,6 +1,6 @@
include $(BUILD_SYSTEM)/clang/x86_64.mk
-include $(BUILD_SYSTEM)/clang/x86_common.mk
+include $(BUILD_SYSTEM)/clang/HOST_x86_common.mk
ifeq ($(HOST_OS),linux)
CLANG_CONFIG_x86_64_HOST_TRIPLE := x86_64-linux-gnu
diff --git a/core/clang/HOST_x86_common.mk b/core/clang/HOST_x86_common.mk
new file mode 100644
index 0000000..0241cb6
--- /dev/null
+++ b/core/clang/HOST_x86_common.mk
@@ -0,0 +1,56 @@
+# Shared by HOST_x86.mk and HOST_x86_64.mk.
+
+ifeq ($(HOST_OS),darwin)
+# nothing required here yet
+endif
+
+ifeq ($(HOST_OS),linux)
+CLANG_CONFIG_x86_LINUX_HOST_EXTRA_ASFLAGS := \
+ --gcc-toolchain=$($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG) \
+ --sysroot=$($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG)/sysroot \
+ -no-integrated-as
+
+CLANG_CONFIG_x86_LINUX_HOST_EXTRA_CFLAGS := \
+ --gcc-toolchain=$($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG) \
+ -no-integrated-as
+
+ifneq ($(strip $($(clang_2nd_arch_prefix)HOST_IS_64_BIT)),)
+CLANG_CONFIG_x86_LINUX_HOST_EXTRA_CPPFLAGS := \
+ --gcc-toolchain=$($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG) \
+ --sysroot=$($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG)/sysroot \
+ -isystem $($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG)/x86_64-linux/include/c++/4.6 \
+ -isystem $($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG)/x86_64-linux/include/c++/4.6/x86_64-linux \
+ -isystem $($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG)/x86_64-linux/include/c++/4.6/backward \
+ -no-integrated-as
+
+CLANG_CONFIG_x86_LINUX_HOST_EXTRA_LDFLAGS := \
+ --gcc-toolchain=$($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG) \
+ --sysroot=$($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG)/sysroot \
+ -B$($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG)/x86_64-linux/bin \
+ -B$($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG)/lib/gcc/x86_64-linux/4.6 \
+ -L$($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG)/lib/gcc/x86_64-linux/4.6 \
+ -L$($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG)/x86_64-linux/lib64/ \
+ -no-integrated-as
+else
+CLANG_CONFIG_x86_LINUX_HOST_EXTRA_CPPFLAGS := \
+ --gcc-toolchain=$($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG) \
+ --sysroot=$($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG)/sysroot \
+ -isystem $($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG)/x86_64-linux/include/c++/4.6 \
+ -isystem $($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG)/x86_64-linux/include/c++/4.6/x86_64-linux/32 \
+ -isystem $($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG)/x86_64-linux/include/c++/4.6/backward \
+ -no-integrated-as
+
+CLANG_CONFIG_x86_LINUX_HOST_EXTRA_LDFLAGS := \
+ --gcc-toolchain=$($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG) \
+ --sysroot=$($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG)/sysroot \
+ -B$($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG)/x86_64-linux/bin \
+ -B$($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG)/lib/gcc/x86_64-linux/4.6/32 \
+ -L$($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG)/lib/gcc/x86_64-linux/4.6/32 \
+ -L$($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG)/x86_64-linux/lib32/ \
+ -no-integrated-as
+endif
+endif # Linux
+
+ifeq ($(HOST_OS),windows)
+# nothing required here yet
+endif
diff --git a/core/clang/config.mk b/core/clang/config.mk
index c598e7d..d44be52 100644
--- a/core/clang/config.mk
+++ b/core/clang/config.mk
@@ -47,10 +47,13 @@
CLANG_CONFIG_TARGET_EXTRA_LDFLAGS :=
# HOST config
-ifneq ($(strip $(BUILD_HOST_64bit)),)
-include $(BUILD_SYSTEM)/clang/HOST_x86_64.mk
-else
+clang_2nd_arch_prefix :=
include $(BUILD_SYSTEM)/clang/HOST_$(HOST_ARCH).mk
+
+# HOST_2ND_ARCH config
+ifdef HOST_2ND_ARCH
+clang_2nd_arch_prefix := $(HOST_2ND_ARCH_VAR_PREFIX)
+include $(BUILD_SYSTEM)/clang/HOST_$(HOST_2ND_ARCH).mk
endif
# TARGET config