HOST_linux-x86.mk revision 5bdf305bbe529a85735200353478057b65bb462e 
1#
2# Copyright (C) 2006 The Android Open Source Project
3#
4# Licensed under the Apache License, Version 2.0 (the "License");
5# you may not use this file except in compliance with the License.
6# You may obtain a copy of the License at
7#
8#      http://www.apache.org/licenses/LICENSE-2.0
9#
10# Unless required by applicable law or agreed to in writing, software
11# distributed under the License is distributed on an "AS IS" BASIS,
12# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13# See the License for the specific language governing permissions and
14# limitations under the License.
15#
16
17# Configuration for builds hosted on linux-x86.
18# Included by combo/select.mk
19
20# $(1): The file to check
21define get-file-size
22stat --format "%s" "$(1)" | tr -d '\n'
23endef
24
25# Special case for the Linux SDK: We need to use a special cross-toolchain
26# that generates machine code that will run properly on Ubuntu 8.04 (Hardy)
27# By default, the code generated by the Lucid host toolchain will not run
28# on previous versions of the platform, due to GLibc ABI mistmatches
29# (Lucid is 2.11, Hardy is 2.7)
30#
31# Note that components that need to be built as 64-bit (e.g. clearsilver
32# which is loaded by the 64-bit JVM through JNI), will have to use
33# LOCAL_CC and LOCAL_CXX to override this.
34#
35HOST_SDK_TOOLCHAIN_PREFIX := prebuilts/tools/gcc-sdk
36# Don't do anything if the toolchain is not there
37ifneq (,$(strip $(wildcard $(HOST_SDK_TOOLCHAIN_PREFIX)/gcc)))
38HOST_CC  := $(HOST_SDK_TOOLCHAIN_PREFIX)/gcc
39HOST_CXX := $(HOST_SDK_TOOLCHAIN_PREFIX)/g++
40HOST_AR  := $(HOST_SDK_TOOLCHAIN_PREFIX)/ar
41endif # $(HOST_SDK_TOOLCHAIN_PREFIX)/gcc exists
42
43ifneq ($(strip $(BUILD_HOST_64bit)),)
44# By default we build everything in 32-bit, because it gives us
45# more consistency between the host tools and the target.
46# BUILD_HOST_64bit=1 overrides it for tool like emulator
47# which can benefit from 64-bit host arch.
48HOST_GLOBAL_CFLAGS += -m64
49HOST_GLOBAL_LDFLAGS += -m64
50else
51HOST_GLOBAL_CFLAGS += -m32
52HOST_GLOBAL_LDFLAGS += -m32
53endif # BUILD_HOST_64bit
54
55ifneq ($(strip $(BUILD_HOST_static)),)
56# Statically-linked binaries are desirable for sandboxed environment
57HOST_GLOBAL_LDFLAGS += -static
58endif # BUILD_HOST_static
59
60HOST_GLOBAL_CFLAGS += -fPIC \
61    -include $(call select-android-config-h,linux-x86)
62
63# Disable new longjmp in glibc 2.11 and later. See bug 2967937.
64HOST_GLOBAL_CFLAGS += -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=0
65
66HOST_NO_UNDEFINED_LDFLAGS := -Wl,--no-undefined
67