TARGET_linux-x86_64.mk revision 8765b1035f813be2c26988a73cf3e9815aa5adf6 
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 $(TARGET_ARCH_VARIANT)),)
22TARGET_ARCH_VARIANT := x86_64
23endif
24
25# Decouple NDK library selection with platform compiler version
26TARGET_NDK_GCC_VERSION := 4.9
27
28ifeq ($(strip $(TARGET_GCC_VERSION_EXP)),)
29TARGET_GCC_VERSION := 4.9
30else
31TARGET_GCC_VERSION := $(TARGET_GCC_VERSION_EXP)
32endif
33
34# Include the arch-variant-specific configuration file.
35# Its role is to define various ARCH_X86_HAVE_XXX feature macros,
36# plus initial values for TARGET_GLOBAL_CFLAGS
37#
38TARGET_ARCH_SPECIFIC_MAKEFILE := $(BUILD_COMBOS)/arch/$(TARGET_ARCH)/$(TARGET_ARCH_VARIANT).mk
39ifeq ($(strip $(wildcard $(TARGET_ARCH_SPECIFIC_MAKEFILE))),)
40$(error Unknown $(TARGET_ARCH) architecture version: $(TARGET_ARCH_VARIANT))
41endif
42
43include $(TARGET_ARCH_SPECIFIC_MAKEFILE)
44include $(BUILD_SYSTEM)/combo/fdo.mk
45
46# You can set TARGET_TOOLS_PREFIX to get gcc from somewhere else
47ifeq ($(strip $(TARGET_TOOLS_PREFIX)),)
48TARGET_TOOLCHAIN_ROOT := prebuilts/gcc/$(HOST_PREBUILT_TAG)/x86/x86_64-linux-android-$(TARGET_GCC_VERSION)
49TARGET_TOOLS_PREFIX := $(TARGET_TOOLCHAIN_ROOT)/bin/x86_64-linux-android-
50endif
51
52TARGET_CC := $(TARGET_TOOLS_PREFIX)gcc
53TARGET_CXX := $(TARGET_TOOLS_PREFIX)g++
54TARGET_AR := $(TARGET_TOOLS_PREFIX)ar
55TARGET_OBJCOPY := $(TARGET_TOOLS_PREFIX)objcopy
56TARGET_LD := $(TARGET_TOOLS_PREFIX)ld
57TARGET_READELF := $(TARGET_TOOLS_PREFIX)readelf
58TARGET_STRIP := $(TARGET_TOOLS_PREFIX)strip
59TARGET_NM := $(TARGET_TOOLS_PREFIX)nm
60
61define $(combo_var_prefix)transform-shared-lib-to-toc
62$(call _gen_toc_command_for_elf,$(1),$(2))
63endef
64
65ifneq ($(wildcard $(TARGET_CC)),)
66TARGET_LIBGCC := \
67	$(shell $(TARGET_CC) -m64 -print-file-name=libgcc.a)
68TARGET_LIBATOMIC := \
69	$(shell $(TARGET_CC) -m64 -print-file-name=libatomic.a)
70TARGET_LIBGCOV := \
71	$(shell $(TARGET_CC) -m64 -print-file-name=libgcov.a)
72endif
73
74TARGET_NO_UNDEFINED_LDFLAGS := -Wl,--no-undefined
75
76libc_root := bionic/libc
77libm_root := bionic/libm
78
79KERNEL_HEADERS_COMMON := $(libc_root)/kernel/uapi
80KERNEL_HEADERS_COMMON += $(libc_root)/kernel/common
81KERNEL_HEADERS_ARCH   := $(libc_root)/kernel/uapi/asm-x86 # x86 covers both x86 and x86_64.
82KERNEL_HEADERS := $(KERNEL_HEADERS_COMMON) $(KERNEL_HEADERS_ARCH)
83
84TARGET_GLOBAL_CFLAGS += \
85			-O2 \
86			-Wa,--noexecstack \
87			-Werror=format-security \
88			-D_FORTIFY_SOURCE=2 \
89			-Wstrict-aliasing=2 \
90			-ffunction-sections \
91			-finline-functions \
92			-finline-limit=300 \
93			-fno-short-enums \
94			-fstrict-aliasing \
95			-funswitch-loops \
96			-funwind-tables \
97			-fstack-protector-strong \
98			-m64 \
99			-no-canonical-prefixes \
100			-fno-canonical-system-headers
101
102# Help catch common 32/64-bit errors.
103TARGET_GLOBAL_CFLAGS += \
104    -Werror=pointer-to-int-cast \
105    -Werror=int-to-pointer-cast \
106    -Werror=implicit-function-declaration \
107
108TARGET_GLOBAL_CFLAGS += $(arch_variant_cflags)
109
110ifeq ($(ARCH_X86_HAVE_SSSE3),true)   # yes, really SSSE3, not SSE3!
111    TARGET_GLOBAL_CFLAGS += -DUSE_SSSE3 -mssse3
112endif
113ifeq ($(ARCH_X86_HAVE_SSE4),true)
114    TARGET_GLOBAL_CFLAGS += -msse4
115endif
116ifeq ($(ARCH_X86_HAVE_SSE4_1),true)
117    TARGET_GLOBAL_CFLAGS += -msse4.1
118endif
119ifeq ($(ARCH_X86_HAVE_SSE4_2),true)
120    TARGET_GLOBAL_CFLAGS += -msse4.2
121endif
122ifeq ($(ARCH_X86_HAVE_POPCNT),true)
123    TARGET_GLOBAL_CFLAGS += -mpopcnt
124endif
125ifeq ($(ARCH_X86_HAVE_AVX),true)
126    TARGET_GLOBAL_CFLAGS += -mavx
127endif
128ifeq ($(ARCH_X86_HAVE_AES_NI),true)
129    TARGET_GLOBAL_CFLAGS += -maes
130endif
131
132TARGET_GLOBAL_LDFLAGS += -m64
133
134TARGET_GLOBAL_LDFLAGS += -Wl,-z,noexecstack
135TARGET_GLOBAL_LDFLAGS += -Wl,-z,relro -Wl,-z,now
136TARGET_GLOBAL_LDFLAGS += -Wl,--build-id=md5
137TARGET_GLOBAL_LDFLAGS += -Wl,--warn-shared-textrel
138TARGET_GLOBAL_LDFLAGS += -Wl,--fatal-warnings
139TARGET_GLOBAL_LDFLAGS += -Wl,--gc-sections
140TARGET_GLOBAL_LDFLAGS += -Wl,--hash-style=gnu
141
142TARGET_C_INCLUDES := \
143	$(libc_root)/arch-x86_64/include \
144	$(libc_root)/include \
145	$(KERNEL_HEADERS) \
146	$(libm_root)/include \
147	$(libm_root)/include/amd64 \
148
149TARGET_CRTBEGIN_STATIC_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_static.o
150TARGET_CRTBEGIN_DYNAMIC_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_dynamic.o
151TARGET_CRTEND_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_android.o
152
153TARGET_CRTBEGIN_SO_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_so.o
154TARGET_CRTEND_SO_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_so.o
155
156TARGET_LINKER := /system/bin/linker64
157
158TARGET_GLOBAL_YASM_FLAGS := -f elf64 -m amd64
159