TARGET_linux-x86_64.mk revision 4de6fa4069407607813dfdd1993114c79194d337 
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_64 as a target.
18# Included by combo/select.mk
19
20# Provide a default variant.
21ifeq ($(strip $(TARGET_ARCH_VARIANT)),)
22TARGET_ARCH_VARIANT := x86_64
23endif
24
25# Decouple NDK library selection with platform compiler version
26TARGET_NDK_GCC_VERSION := 4.8
27
28ifeq ($(strip $(TARGET_GCC_VERSION_EXP)),)
29TARGET_GCC_VERSION := 4.8
30else
31TARGET_GCC_VERSION := $(TARGET_GCC_VERSION_EXP)
32endif
33
34TARGET_IS_64_BIT := true
35
36# Include the arch-variant-specific configuration file.
37# Its role is to define various ARCH_X86_HAVE_XXX feature macros,
38# plus initial values for TARGET_GLOBAL_CFLAGS
39#
40TARGET_ARCH_SPECIFIC_MAKEFILE := $(BUILD_COMBOS)/arch/$(TARGET_ARCH)/$(TARGET_ARCH_VARIANT).mk
41ifeq ($(strip $(wildcard $(TARGET_ARCH_SPECIFIC_MAKEFILE))),)
42$(error Unknown $(TARGET_ARCH) architecture version: $(TARGET_ARCH_VARIANT))
43endif
44
45include $(TARGET_ARCH_SPECIFIC_MAKEFILE)
46
47
48# You can set TARGET_TOOLS_PREFIX to get gcc from somewhere else
49ifeq ($(strip $(TARGET_TOOLS_PREFIX)),)
50TARGET_TOOLCHAIN_ROOT := prebuilts/gcc/$(HOST_PREBUILT_TAG)/x86/x86_64-linux-android-$(TARGET_GCC_VERSION)
51TARGET_TOOLS_PREFIX := $(TARGET_TOOLCHAIN_ROOT)/bin/x86_64-linux-android-
52endif
53
54TARGET_CC := $(TARGET_TOOLS_PREFIX)gcc$(HOST_EXECUTABLE_SUFFIX)
55TARGET_CXX := $(TARGET_TOOLS_PREFIX)g++$(HOST_EXECUTABLE_SUFFIX)
56TARGET_AR := $(TARGET_TOOLS_PREFIX)ar$(HOST_EXECUTABLE_SUFFIX)
57TARGET_OBJCOPY := $(TARGET_TOOLS_PREFIX)objcopy$(HOST_EXECUTABLE_SUFFIX)
58TARGET_LD := $(TARGET_TOOLS_PREFIX)ld$(HOST_EXECUTABLE_SUFFIX)
59TARGET_READELF := $(TARGET_TOOLS_PREFIX)readelf$(HOST_EXECUTABLE_SUFFIX)
60TARGET_STRIP := $(TARGET_TOOLS_PREFIX)strip$(HOST_EXECUTABLE_SUFFIX)
61
62ifneq ($(wildcard $(TARGET_CC)),)
63TARGET_LIBGCC := \
64	$(shell $(TARGET_CC) -m64 -print-file-name=libgcc.a)
65target_libgcov := $(shell $(TARGET_CC) $(TARGET_GLOBAL_CFLAGS) \
66	-print-file-name=libgcov.a)
67endif
68
69TARGET_NO_UNDEFINED_LDFLAGS := -Wl,--no-undefined
70
71libc_root := bionic/libc
72libm_root := bionic/libm
73libstdc++_root := bionic/libstdc++
74
75# Define FDO (Feedback Directed Optimization) options.
76
77TARGET_FDO_CFLAGS:=
78TARGET_FDO_LIB:=
79
80ifneq ($(strip $(BUILD_FDO_INSTRUMENT)),)
81  # Set BUILD_FDO_INSTRUMENT=true to turn on FDO instrumentation.
82  # The profile will be generated on /data/local/tmp/profile on the device.
83  TARGET_FDO_CFLAGS := -fprofile-generate=/data/local/tmp/profile -DANDROID_FDO
84  TARGET_FDO_LIB := $(target_libgcov)
85else
86  # If BUILD_FDO_INSTRUMENT is turned off, then consider doing the FDO optimizations.
87  # Set TARGET_FDO_PROFILE_PATH to set a custom profile directory for your build.
88  ifeq ($(strip $(TARGET_FDO_PROFILE_PATH)),)
89    TARGET_FDO_PROFILE_PATH := fdo/profiles/$(TARGET_ARCH)/$(TARGET_ARCH_VARIANT)
90  else
91    ifeq ($(strip $(wildcard $(TARGET_FDO_PROFILE_PATH))),)
92      $(warning Custom TARGET_FDO_PROFILE_PATH supplied, but directory does not exist. Turn off FDO.)
93    endif
94  endif
95
96  # If the FDO profile directory can't be found, then FDO is off.
97  ifneq ($(strip $(wildcard $(TARGET_FDO_PROFILE_PATH))),)
98    TARGET_FDO_CFLAGS := -fprofile-use=$(TARGET_FDO_PROFILE_PATH) -DANDROID_FDO
99    TARGET_FDO_LIB := $(target_libgcov)
100  endif
101endif
102
103KERNEL_HEADERS_COMMON := $(libc_root)/kernel/uapi
104KERNEL_HEADERS_ARCH   := $(libc_root)/kernel/uapi/asm-x86 # x86 covers both x86 and x86_64.
105KERNEL_HEADERS := $(KERNEL_HEADERS_COMMON) $(KERNEL_HEADERS_ARCH)
106
107TARGET_GLOBAL_CFLAGS += \
108			-O2 \
109			-Ulinux \
110			-Wa,--noexecstack \
111			-Werror=format-security \
112			-D_FORTIFY_SOURCE=2 \
113			-Wstrict-aliasing=2 \
114			-fPIC -fPIE \
115			-ffunction-sections \
116			-finline-functions \
117			-finline-limit=300 \
118			-fno-inline-functions-called-once \
119			-fno-short-enums \
120			-fstrict-aliasing \
121			-funswitch-loops \
122			-funwind-tables \
123			-fstack-protector \
124			-m64
125
126# Help catch common 32/64-bit errors.
127TARGET_GLOBAL_CFLAGS += \
128    -Werror=pointer-to-int-cast \
129    -Werror=int-to-pointer-cast \
130
131android_config_h := $(call select-android-config-h,target_linux-x86)
132TARGET_ANDROID_CONFIG_CFLAGS := -include $(android_config_h) -I $(dir $(android_config_h))
133TARGET_GLOBAL_CFLAGS += $(TARGET_ANDROID_CONFIG_CFLAGS)
134
135TARGET_GLOBAL_CFLAGS += $(arch_variant_cflags)
136
137ifeq ($(ARCH_X86_HAVE_SSSE3),true)   # yes, really SSSE3, not SSE3!
138    TARGET_GLOBAL_CFLAGS += -DUSE_SSSE3 -mssse3
139endif
140ifeq ($(ARCH_X86_HAVE_SSE4),true)
141    TARGET_GLOBAL_CFLAGS += -msse4
142endif
143ifeq ($(ARCH_X86_HAVE_SSE4_1),true)
144    TARGET_GLOBAL_CFLAGS += -msse4.1
145endif
146ifeq ($(ARCH_X86_HAVE_SSE4_2),true)
147    TARGET_GLOBAL_CFLAGS += -msse4.2
148endif
149ifeq ($(ARCH_X86_HAVE_AVX),true)
150    TARGET_GLOBAL_CFLAGS += -mavx
151endif
152ifeq ($(ARCH_X86_HAVE_AES_NI),true)
153    TARGET_GLOBAL_CFLAGS += -maes
154endif
155
156TARGET_GLOBAL_LDFLAGS += -m64
157
158TARGET_GLOBAL_LDFLAGS += -Wl,-z,noexecstack
159TARGET_GLOBAL_LDFLAGS += -Wl,-z,relro -Wl,-z,now
160TARGET_GLOBAL_LDFLAGS += -Wl,--warn-shared-textrel
161TARGET_GLOBAL_LDFLAGS += -Wl,--gc-sections
162
163TARGET_C_INCLUDES := \
164	$(libc_root)/arch-x86_64/include \
165	$(libc_root)/include \
166	$(libstdc++_root)/include \
167	$(KERNEL_HEADERS) \
168	$(libm_root)/include \
169	$(libm_root)/include/amd64 \
170
171TARGET_CRTBEGIN_STATIC_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_static.o
172TARGET_CRTBEGIN_DYNAMIC_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_dynamic.o
173TARGET_CRTEND_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_android.o
174
175TARGET_CRTBEGIN_SO_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_so.o
176TARGET_CRTEND_SO_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_so.o
177
178TARGET_STRIP_MODULE:=true
179
180TARGET_DEFAULT_SYSTEM_SHARED_LIBRARIES := libc libstdc++ libm
181
182TARGET_CUSTOM_LD_COMMAND := true
183define transform-o-to-shared-lib-inner
184$(hide) $(PRIVATE_CXX) \
185	$(PRIVATE_TARGET_GLOBAL_LDFLAGS) \
186	 -nostdlib -Wl,-soname,$(notdir $@) \
187	 -shared -Bsymbolic \
188	$(PRIVATE_TARGET_GLOBAL_LD_DIRS) \
189	$(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_SO_O)) \
190	$(PRIVATE_ALL_OBJECTS) \
191	-Wl,--whole-archive \
192	$(call normalize-target-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \
193	-Wl,--no-whole-archive \
194	$(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--start-group) \
195	$(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \
196	$(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--end-group) \
197	$(PRIVATE_TARGET_LIBGCC) \
198	$(PRIVATE_TARGET_FDO_LIB) \
199	$(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \
200	-o $@ \
201	$(PRIVATE_LDFLAGS) \
202	$(PRIVATE_TARGET_LIBGCC) \
203	$(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_SO_O))
204endef
205
206define transform-o-to-executable-inner
207$(hide) $(PRIVATE_CXX) \
208	$(PRIVATE_TARGET_GLOBAL_LDFLAGS) \
209	-nostdlib -Bdynamic \
210	-Wl,-z,nocopyreloc \
211	-fPIE -pie \
212	$(PRIVATE_TARGET_GLOBAL_LD_DIRS) \
213	-Wl,-rpath-link=$(PRIVATE_TARGET_OUT_INTERMEDIATE_LIBRARIES) \
214	$(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_DYNAMIC_O)) \
215	$(PRIVATE_ALL_OBJECTS) \
216	-Wl,--whole-archive \
217	$(call normalize-target-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \
218	-Wl,--no-whole-archive \
219	$(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--start-group) \
220	$(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \
221	$(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--end-group) \
222	$(PRIVATE_TARGET_LIBGCC) \
223	$(PRIVATE_TARGET_FDO_LIB) \
224	$(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \
225	-o $@ \
226	$(PRIVATE_LDFLAGS) \
227	$(PRIVATE_TARGET_LIBGCC) \
228	$(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_O))
229endef
230
231define transform-o-to-static-executable-inner
232$(hide) $(PRIVATE_CXX) \
233	$(PRIVATE_TARGET_GLOBAL_LDFLAGS) \
234	-nostdlib -Bstatic \
235	-o $@ \
236	$(PRIVATE_TARGET_GLOBAL_LD_DIRS) \
237	$(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_STATIC_O)) \
238	$(PRIVATE_LDFLAGS) \
239	$(PRIVATE_ALL_OBJECTS) \
240	-Wl,--whole-archive \
241	$(call normalize-target-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \
242	-Wl,--no-whole-archive \
243	-Wl,--start-group \
244	$(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \
245	$(PRIVATE_TARGET_FDO_LIB) \
246	$(PRIVATE_TARGET_LIBGCC) \
247	-Wl,--end-group \
248	$(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_O))
249endef
250