core/combo/HOST_linux-x86.mk

#
# Copyright (C) 2006 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

# Configuration for builds hosted on linux-x86.
# Included by combo/select.mk

# $(1): The file to check
define get-file-size
stat --format "%s" "$(1)" | tr -d '\n'
endef

# Special case for the Linux SDK: We need to use a special cross-toolchain
# that generates machine code that will run properly on Ubuntu 8.04 (Hardy)
# By default, the code generated by the Lucid host toolchain will not run
# on previous versions of the platform, due to GLibc ABI mistmatches
# (Lucid is 2.11, Hardy is 2.7)
#
# Note that components that need to be built as 64-bit (e.g. clearsilver
# which is loaded by the 64-bit JVM through JNI), will have to use
# LOCAL_CC and LOCAL_CXX to override this.
#
HOST_SDK_TOOLCHAIN_PREFIX := prebuilts/tools/gcc-sdk
# Don't do anything if the toolchain is not there
ifneq (,$(strip $(wildcard $(HOST_SDK_TOOLCHAIN_PREFIX)/gcc)))
HOST_CC  := $(HOST_SDK_TOOLCHAIN_PREFIX)/gcc
HOST_CXX := $(HOST_SDK_TOOLCHAIN_PREFIX)/g++
HOST_AR  := $(HOST_SDK_TOOLCHAIN_PREFIX)/ar
endif # $(HOST_SDK_TOOLCHAIN_PREFIX)/gcc exists

ifneq ($(strip $(BUILD_HOST_64bit)),)
# By default we build everything in 32-bit, because it gives us
# more consistency between the host tools and the target.
# BUILD_HOST_64bit=1 overrides it for tool like emulator
# which can benefit from 64-bit host arch.
HOST_GLOBAL_CFLAGS += -m64
HOST_GLOBAL_LDFLAGS += -m64
else
HOST_GLOBAL_CFLAGS += -m32
HOST_GLOBAL_LDFLAGS += -m32
endif # BUILD_HOST_64bit

ifneq ($(strip $(BUILD_HOST_static)),)
# Statically-linked binaries are desirable for sandboxed environment
HOST_GLOBAL_LDFLAGS += -static
endif # BUILD_HOST_static

HOST_GLOBAL_CFLAGS += -fPIC \
    -include $(call select-android-config-h,linux-x86)

# Disable new longjmp in glibc 2.11 and later. See bug 2967937.
HOST_GLOBAL_CFLAGS += -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=0

HOST_NO_UNDEFINED_LDFLAGS := -Wl,--no-undefined