TARGET_linux-x86.mk revision a4716b26187217ce8c4ad8f021080605a39943c6 
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 Linux on x86 as a target.
18# Included by combo/select.mk
19
20ifeq ($(TARGET_SIMULATOR),true)
21# When building for the simulator, use the HOST settings as TARGET settings
22TARGET_CC := $(HOST_CC)
23TARGET_CXX := $(HOST_CXX)
24TARGET_AR := $(HOST_AR)
25TARGET_GLOBAL_CFLAGS := $(HOST_GLOBAL_CFLAGS) -m32
26TARGET_GLOBAL_LDFLAGS := $(HOST_GLOBAL_LDFLAGS) -m32 -lpthread
27TARGET_NO_UNDEFINED_LDFLAGS := $(HOST_NO_UNDEFINED_LDFLAGS)
28ifeq ($(strip $(TARGET_ARCH_VARIANT)),)
29TARGET_ARCH_VARIANT := x86
30endif
31else #simulator
32
33# Provide a default variant.
34ifeq ($(strip $(TARGET_ARCH_VARIANT)),)
35TARGET_ARCH_VARIANT := x86
36endif
37
38# You can set TARGET_TOOLS_PREFIX to get gcc from somewhere else
39ifeq ($(strip $(TARGET_TOOLS_PREFIX)),)
40TARGET_TOOLS_PREFIX := \
41	prebuilt/$(HOST_PREBUILT_TAG)/toolchain/i686-unknown-linux-gnu-4.2.1/bin/i686-unknown-linux-gnu-
42endif
43
44TARGET_CC := $(TARGET_TOOLS_PREFIX)gcc$(HOST_EXECUTABLE_SUFFIX)
45TARGET_CXX := $(TARGET_TOOLS_PREFIX)g++$(HOST_EXECUTABLE_SUFFIX)
46TARGET_AR := $(TARGET_TOOLS_PREFIX)ar$(HOST_EXECUTABLE_SUFFIX)
47TARGET_OBJCOPY := $(TARGET_TOOLS_PREFIX)objcopy$(HOST_EXECUTABLE_SUFFIX)
48TARGET_LD := $(TARGET_TOOLS_PREFIX)ld$(HOST_EXECUTABLE_SUFFIX)
49TARGET_STRIP := $(TARGET_TOOLS_PREFIX)strip$(HOST_EXECUTABLE_SUFFIX)
50TARGET_STRIP_COMMAND = $(TARGET_STRIP) --strip-debug $< -o $@
51
52ifneq ($(wildcard $(TARGET_CC)),)
53TARGET_LIBGCC := \
54	$(shell $(TARGET_CC) -m32 -print-file-name=libgcc.a) \
55        $(shell $(TARGET_CC) -m32 -print-file-name=libgcc_eh.a)
56endif
57
58TARGET_NO_UNDEFINED_LDFLAGS := -Wl,--no-undefined
59
60libc_root := bionic/libc
61libm_root := bionic/libm
62libstdc++_root := bionic/libstdc++
63libthread_db_root := bionic/libthread_db
64
65# unless CUSTOM_KERNEL_HEADERS is defined, we're going to use
66# symlinks located in out/ to point to the appropriate kernel
67# headers. see 'config/kernel_headers.make' for more details
68#
69ifneq ($(CUSTOM_KERNEL_HEADERS),)
70    KERNEL_HEADERS_COMMON := $(CUSTOM_KERNEL_HEADERS)
71    KERNEL_HEADERS_ARCH   := $(CUSTOM_KERNEL_HEADERS)
72else
73    KERNEL_HEADERS_COMMON := $(libc_root)/kernel/common
74    KERNEL_HEADERS_ARCH   := $(libc_root)/kernel/arch-$(TARGET_ARCH)
75endif
76KERNEL_HEADERS := $(KERNEL_HEADERS_COMMON) $(KERNEL_HEADERS_ARCH)
77
78TARGET_GLOBAL_CFLAGS += \
79			-march=i686 \
80			-m32 \
81			-fPIC \
82			-include $(call select-android-config-h,target_linux-x86)
83
84TARGET_GLOBAL_CPPFLAGS += \
85			-fno-use-cxa-atexit
86
87TARGET_C_INCLUDES := \
88	$(libc_root)/arch-x86/include \
89	$(libc_root)/include \
90	$(libstdc++_root)/include \
91	$(KERNEL_HEADERS) \
92	$(libm_root)/include \
93	$(libm_root)/include/i387 \
94	$(libthread_db_root)/include
95
96TARGET_CRTBEGIN_STATIC_O := $(TARGET_OUT_STATIC_LIBRARIES)/crtbegin_static.o
97TARGET_CRTBEGIN_DYNAMIC_O := $(TARGET_OUT_STATIC_LIBRARIES)/crtbegin_dynamic.o
98TARGET_CRTEND_O := $(TARGET_OUT_STATIC_LIBRARIES)/crtend_android.o
99
100
101TARGET_CRTBEGIN_SO_O := $(TARGET_OUT_STATIC_LIBRARIES)/crtbegin_so.o
102TARGET_CRTEND_SO_O := $(TARGET_OUT_STATIC_LIBRARIES)/crtend_so.o
103
104TARGET_STRIP_MODULE:=true
105
106TARGET_DEFAULT_SYSTEM_SHARED_LIBRARIES := libc libstdc++ libm
107
108TARGET_CUSTOM_LD_COMMAND := true
109define transform-o-to-shared-lib-inner
110$(TARGET_CXX) \
111	$(TARGET_GLOBAL_LDFLAGS) \
112	 -nostdlib -Wl,-soname,$(notdir $@) \
113	 -shared -Bsymbolic \
114	-fPIC -march=i686 \
115	$(TARGET_GLOBAL_LD_DIRS) \
116	$(TARGET_CRTBEGIN_SO_O) \
117	$(PRIVATE_ALL_OBJECTS) \
118	-Wl,--whole-archive \
119	$(call normalize-host-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \
120	-Wl,--no-whole-archive \
121	$(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \
122	$(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \
123	-o $@ \
124	$(PRIVATE_LDFLAGS) \
125	$(TARGET_LIBGCC) \
126	$(TARGET_CRTEND_SO_O)
127endef
128
129
130define transform-o-to-executable-inner
131$(TARGET_CXX) \
132	$(TARGET_GLOBAL_LDFLAGS) \
133	-nostdlib -Bdynamic \
134	-Wl,-dynamic-linker,/system/bin/linker \
135	-Wl,-z,nocopyreloc \
136	-o $@ \
137	$(TARGET_GLOBAL_LD_DIRS) \
138	-Wl,-rpath-link=$(TARGET_OUT_INTERMEDIATE_LIBRARIES) \
139	$(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \
140	$(TARGET_CRTBEGIN_DYNAMIC_O) \
141	$(PRIVATE_ALL_OBJECTS) \
142	$(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \
143	$(PRIVATE_LDFLAGS) \
144	$(TARGET_LIBGCC) \
145	$(TARGET_CRTEND_O)
146endef
147
148define transform-o-to-static-executable-inner
149$(TARGET_CXX) \
150	$(TARGET_GLOBAL_LDFLAGS) \
151	-nostdlib -Bstatic \
152	-o $@ \
153	$(TARGET_GLOBAL_LD_DIRS) \
154	$(TARGET_CRTBEGIN_STATIC_O) \
155	$(PRIVATE_LDFLAGS) \
156	$(PRIVATE_ALL_OBJECTS) \
157	-Wl,--start-group \
158	$(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \
159	$(TARGET_LIBGCC) \
160	-Wl,--end-group \
161	$(TARGET_CRTEND_O)
162endef
163
164ifeq ($(TARGET_ARCH_VARIANT),x86-atom)
165    # Enable recent IA friendly memory routines (such as for Atom)
166    # These will not work on the earlier x86 machines
167    TARGET_GLOBAL_CFLAGS += -mtune=i686 -DUSE_SSSE3 -DUSE_SSE2
168endif
169
170TARGET_GLOBAL_CFLAGS += -D__ANDROID__
171TARGET_GLOBAL_LDFLAGS += -m32
172
173endif #simulator
174