HOST_linux-x86.mk revision afb45637b2581be3501e520477b6b264fb2fed9e 
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# Previously the prebiult host toolchain is used only for the sdk build,
26# that's why we have "sdk" in the path name.
27ifeq ($(strip $(HOST_TOOLCHAIN_PREFIX)),)
28HOST_TOOLCHAIN_PREFIX := prebuilts/tools/gcc-sdk
29endif
30# Don't do anything if the toolchain is not there
31ifneq (,$(strip $(wildcard $(HOST_TOOLCHAIN_PREFIX)/gcc)))
32HOST_CC  := $(HOST_TOOLCHAIN_PREFIX)/gcc
33HOST_CXX := $(HOST_TOOLCHAIN_PREFIX)/g++
34HOST_AR  := $(HOST_TOOLCHAIN_PREFIX)/ar
35endif # $(HOST_TOOLCHAIN_PREFIX)/gcc exists
36
37ifneq ($(strip $(BUILD_HOST_64bit)),)
38# By default we build everything in 32-bit, because it gives us
39# more consistency between the host tools and the target.
40# BUILD_HOST_64bit=1 overrides it for tool like emulator
41# which can benefit from 64-bit host arch.
42HOST_GLOBAL_CFLAGS += -m64 -Wa,--noexecstack
43HOST_GLOBAL_LDFLAGS += -m64 -Wl,-z,noexecstack
44else
45# We expect SSE3 floating point math.
46HOST_GLOBAL_CFLAGS += -mstackrealign -msse3 -mfpmath=sse -m32 -Wa,--noexecstack
47HOST_GLOBAL_LDFLAGS += -m32 -Wl,-z,noexecstack
48endif # BUILD_HOST_64bit
49
50ifneq ($(strip $(BUILD_HOST_static)),)
51# Statically-linked binaries are desirable for sandboxed environment
52HOST_GLOBAL_LDFLAGS += -static
53endif # BUILD_HOST_static
54
55HOST_GLOBAL_CFLAGS += -fPIC \
56    -include $(call select-android-config-h,linux-x86)
57
58# Disable new longjmp in glibc 2.11 and later. See bug 2967937.
59HOST_GLOBAL_CFLAGS += -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=0
60
61HOST_NO_UNDEFINED_LDFLAGS := -Wl,--no-undefined
62