6feb6d5607
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
56 lines
2.0 KiB
Makefile
56 lines
2.0 KiB
Makefile
#
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# Copyright (C) 2006 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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# Configuration for builds hosted on linux-x86_64.
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# Included by combo/select.mk
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HOST_IS_64_BIT := true
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ifeq ($(strip $(HOST_TOOLCHAIN_PREFIX)),)
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HOST_TOOLCHAIN_PREFIX := prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.11-4.6/bin/x86_64-linux-
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endif
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# Don't do anything if the toolchain is not there
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ifneq (,$(strip $(wildcard $(HOST_TOOLCHAIN_PREFIX)gcc)))
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HOST_CC := $(HOST_TOOLCHAIN_PREFIX)gcc
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HOST_CXX := $(HOST_TOOLCHAIN_PREFIX)g++
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HOST_AR := $(HOST_TOOLCHAIN_PREFIX)ar
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endif # $(HOST_TOOLCHAIN_PREFIX)gcc exists
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# gcc location for clang; to be updated when clang is updated
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HOST_TOOLCHAIN_FOR_CLANG := prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.11-4.6/
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HOST_GLOBAL_CFLAGS += -m64 -Wa,--noexecstack
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HOST_GLOBAL_LDFLAGS += -m64 -Wl,-z,noexecstack
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ifneq ($(strip $(BUILD_HOST_static)),)
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# Statically-linked binaries are desirable for sandboxed environment
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HOST_GLOBAL_LDFLAGS += -static
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endif # BUILD_HOST_static
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# TODO: Add AndroidConfig.h for linux-x86_64
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HOST_GLOBAL_CFLAGS += -fPIC \
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-no-canonical-prefixes \
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-include $(call select-android-config-h,linux-x86)
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# Disable new longjmp in glibc 2.11 and later. See bug 2967937.
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HOST_GLOBAL_CFLAGS += -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=0
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# Workaround differences in inttypes.h between host and target.
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# See bug 12708004.
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HOST_GLOBAL_CFLAGS += -D__STDC_FORMAT_MACROS -D__STDC_CONSTANT_MACROS
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HOST_NO_UNDEFINED_LDFLAGS := -Wl,--no-undefined
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