TARGET_linux-x86.mk revision 1a08100fa9d92c25de32ba4d13fd3958bbcab894 
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 := $(HOST_NO_UNDEFINED_LDFLAGS)
28TARGET_ARCH_VARIANT := x86
29else #simulator
30
31# Provide a default variant.
32ifeq ($(strip $(TARGET_ARCH_VARIANT)),)
33TARGET_ARCH_VARIANT := x86
34endif
35
36# You can set TARGET_TOOLS_PREFIX to get gcc from somewhere else
37ifeq ($(strip $(TARGET_TOOLS_PREFIX)),)
38TARGET_TOOLS_PREFIX := \
39	prebuilt/$(HOST_PREBUILT_TAG)/toolchain/i686-unknown-linux-gnu-4.2.1/bin/i686-unknown-linux-gnu-
40endif
41
42TARGET_CC := $(TARGET_TOOLS_PREFIX)gcc$(HOST_EXECUTABLE_SUFFIX)
43TARGET_CXX := $(TARGET_TOOLS_PREFIX)g++$(HOST_EXECUTABLE_SUFFIX)
44TARGET_AR := $(TARGET_TOOLS_PREFIX)ar$(HOST_EXECUTABLE_SUFFIX)
45TARGET_OBJCOPY := $(TARGET_TOOLS_PREFIX)objcopy$(HOST_EXECUTABLE_SUFFIX)
46TARGET_LD := $(TARGET_TOOLS_PREFIX)ld$(HOST_EXECUTABLE_SUFFIX)
47
48ifneq ($(wildcard $(TARGET_CC)),)
49TARGET_LIBGCC := \
50	$(shell $(TARGET_CC) -m32 -print-file-name=libgcc.a) \
51        $(shell $(TARGET_CC) -m32 -print-file-name=libgcc_eh.a)
52endif
53
54TARGET_NO_UNDEFINED_LDFLAGS := -Wl,--no-undefined
55
56libc_root := bionic/libc
57libm_root := bionic/libm
58libstdc++_root := bionic/libstdc++
59libthread_db_root := bionic/libthread_db
60
61# unless CUSTOM_KERNEL_HEADERS is defined, we're going to use
62# symlinks located in out/ to point to the appropriate kernel
63# headers. see 'config/kernel_headers.make' for more details
64#
65ifneq ($(CUSTOM_KERNEL_HEADERS),)
66    KERNEL_HEADERS_COMMON := $(CUSTOM_KERNEL_HEADERS)
67    KERNEL_HEADERS_ARCH   := $(CUSTOM_KERNEL_HEADERS)
68else
69    KERNEL_HEADERS_COMMON := $(libc_root)/kernel/common
70    KERNEL_HEADERS_ARCH   := $(libc_root)/kernel/arch-$(TARGET_ARCH)
71endif
72KERNEL_HEADERS := $(KERNEL_HEADERS_COMMON) $(KERNEL_HEADERS_ARCH)
73
74TARGET_GLOBAL_CFLAGS += \
75			-march=i686 \
76			-m32 \
77			-fPIC \
78			-include $(call select-android-config-h,target_linux-x86)
79
80TARGET_GLOBAL_CPPFLAGS += \
81			-fno-use-cxa-atexit
82
83TARGET_C_INCLUDES := \
84	$(libc_root)/arch-x86/include \
85	$(libc_root)/include \
86	$(libstdc++_root)/include \
87	$(KERNEL_HEADERS) \
88	$(libm_root)/include \
89	$(libm_root)/include/i387 \
90	$(libthread_db_root)/include
91
92TARGET_CRTBEGIN_STATIC_O := $(TARGET_OUT_STATIC_LIBRARIES)/crtbegin_static.o
93TARGET_CRTBEGIN_DYNAMIC_O := $(TARGET_OUT_STATIC_LIBRARIES)/crtbegin_dynamic.o
94TARGET_CRTEND_O := $(TARGET_OUT_STATIC_LIBRARIES)/crtend_android.o
95
96
97TARGET_CRTBEGIN_SO_O := $(TARGET_OUT_STATIC_LIBRARIES)/crtbegin_so.o
98TARGET_CRTEND_SO_O := $(TARGET_OUT_STATIC_LIBRARIES)/crtend_so.o
99
100# TARGET_STRIP_MODULE:=true
101
102TARGET_DEFAULT_SYSTEM_SHARED_LIBRARIES := libc libstdc++ libm
103
104TARGET_CUSTOM_LD_COMMAND := true
105define transform-o-to-shared-lib-inner
106$(TARGET_CXX) \
107	$(PRIVATE_TARGET_GLOBAL_LDFLAGS) \
108	 -nostdlib -Wl,-soname,$(notdir $@) \
109	 -shared -Bsymbolic \
110	-fPIC -march=i686 \
111	$(PRIVATE_TARGET_GLOBAL_LD_DIRS) \
112	$(PRIVATE_TARGET_CRTBEGIN_SO_O) \
113	$(PRIVATE_ALL_OBJECTS) \
114	-Wl,--whole-archive \
115	$(call normalize-host-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \
116	-Wl,--no-whole-archive \
117	$(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \
118	$(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \
119	-o $@ \
120	$(PRIVATE_LDFLAGS) \
121	$(PRIVATE_TARGET_LIBGCC) \
122	$(PRIVATE_TARGET_CRTEND_SO_O)
123endef
124
125
126define transform-o-to-executable-inner
127$(TARGET_CXX) \
128	$(TARGET_GLOBAL_LDFLAGS) \
129	-nostdlib -Bdynamic \
130	-Wl,-dynamic-linker,/system/bin/linker \
131	-Wl,-z,nocopyreloc \
132	-o $@ \
133	$(TARGET_GLOBAL_LD_DIRS) \
134	-Wl,-rpath-link=$(TARGET_OUT_INTERMEDIATE_LIBRARIES) \
135	$(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \
136	$(TARGET_CRTBEGIN_DYNAMIC_O) \
137	$(PRIVATE_ALL_OBJECTS) \
138	$(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \
139	$(PRIVATE_LDFLAGS) \
140	$(TARGET_LIBGCC) \
141	$(TARGET_CRTEND_O)
142endef
143
144define transform-o-to-static-executable-inner
145$(TARGET_CXX) \
146	$(TARGET_GLOBAL_LDFLAGS) \
147	-nostdlib -Bstatic \
148	-o $@ \
149	$(TARGET_GLOBAL_LD_DIRS) \
150	$(TARGET_CRTBEGIN_STATIC_O) \
151	$(PRIVATE_LDFLAGS) \
152	$(PRIVATE_ALL_OBJECTS) \
153	-Wl,--start-group \
154	$(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \
155	$(TARGET_LIBGCC) \
156	-Wl,--end-group \
157	$(TARGET_CRTEND_O)
158endef
159
160TARGET_GLOBAL_CFLAGS += -m32
161TARGET_GLOBAL_LDFLAGS += -m32
162
163endif #simulator
164