core/combo/TARGET_linux-x86.mk

   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
  20 ifeq ($(TARGET_SIMULATOR),true)
  21 # When building for the simulator, use the HOST settings as TARGET settings
  22 TARGET_CC := $(HOST_CC)
  23 TARGET_CXX := $(HOST_CXX)
  24 TARGET_AR := $(HOST_AR)
  25 TARGET_GLOBAL_CFLAGS := $(HOST_GLOBAL_CFLAGS) -m32
  26 TARGET_GLOBAL_LDFLAGS := $(HOST_GLOBAL_LDFLAGS) -m32 -lpthread
  27 TARGET_NO_UNDEFINED_LDFLAGS := $(HOST_NO_UNDEFINED_LDFLAGS)
  28 TARGET_ARCH_VARIANT := x86
  29 else #simulator
  30
  31 # Provide a default variant.
  32 ifeq ($(strip $(TARGET_ARCH_VARIANT)),)
  33 TARGET_ARCH_VARIANT := x86
  34 endif
  35
  36 # You can set TARGET_TOOLS_PREFIX to get gcc from somewhere else
  37 ifeq ($(strip $(TARGET_TOOLS_PREFIX)),)
  38 TARGET_TOOLS_PREFIX := \
  39         prebuilt/$(HOST_PREBUILT_TAG)/toolchain/i686-unknown-linux-gnu-4.2.1/bin/i686-unknown-linux-gnu-
  40 endif
  41
  42 TARGET_CC := $(TARGET_TOOLS_PREFIX)gcc$(HOST_EXECUTABLE_SUFFIX)
  43 TARGET_CXX := $(TARGET_TOOLS_PREFIX)g++$(HOST_EXECUTABLE_SUFFIX)
  44 TARGET_AR := $(TARGET_TOOLS_PREFIX)ar$(HOST_EXECUTABLE_SUFFIX)
  45 TARGET_OBJCOPY := $(TARGET_TOOLS_PREFIX)objcopy$(HOST_EXECUTABLE_SUFFIX)
  46 TARGET_LD := $(TARGET_TOOLS_PREFIX)ld$(HOST_EXECUTABLE_SUFFIX)
  47
  48 ifneq ($(wildcard $(TARGET_CC)),)
  49 TARGET_LIBGCC := \
  50         $(shell $(TARGET_CC) -m32 -print-file-name=libgcc.a) \
  51         $(shell $(TARGET_CC) -m32 -print-file-name=libgcc_eh.a)
  52 endif
  53
  54 TARGET_NO_UNDEFINED_LDFLAGS := -Wl,--no-undefined
  55
  56 libc_root := bionic/libc
  57 libm_root := bionic/libm
  58 libstdc++_root := bionic/libstdc++
  59 libthread_db_root := bionic/libthread_db
  60
  61 # unless CUSTOM_KERNEL_HEADERS is defined, we're going to use
  62 # symlinks located in out/ to point to the appropriate kernel
  63 # headers. see 'config/kernel_headers.make' for more details
  64 #
  65 ifneq ($(CUSTOM_KERNEL_HEADERS),)
  66     KERNEL_HEADERS_COMMON := $(CUSTOM_KERNEL_HEADERS)
  67     KERNEL_HEADERS_ARCH   := $(CUSTOM_KERNEL_HEADERS)
  68 else
  69     KERNEL_HEADERS_COMMON := $(libc_root)/kernel/common
  70     KERNEL_HEADERS_ARCH   := $(libc_root)/kernel/arch-$(TARGET_ARCH)
  71 endif
  72 KERNEL_HEADERS := $(KERNEL_HEADERS_COMMON) $(KERNEL_HEADERS_ARCH)
  73
  74 TARGET_GLOBAL_CFLAGS += \
  75                         -march=i686 \
  76                         -m32 \
  77                         -fPIC \
  78                         -include $(call select-android-config-h,target_linux-x86)
  79
  80 TARGET_GLOBAL_CPPFLAGS += \
  81                         -fno-use-cxa-atexit
  82
  83 TARGET_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
  92 TARGET_CRTBEGIN_STATIC_O := $(TARGET_OUT_STATIC_LIBRARIES)/crtbegin_static.o
  93 TARGET_CRTBEGIN_DYNAMIC_O := $(TARGET_OUT_STATIC_LIBRARIES)/crtbegin_dynamic.o
  94 TARGET_CRTEND_O := $(TARGET_OUT_STATIC_LIBRARIES)/crtend_android.o
  95
  96
  97 TARGET_CRTBEGIN_SO_O := $(TARGET_OUT_STATIC_LIBRARIES)/crtbegin_so.o
  98 TARGET_CRTEND_SO_O := $(TARGET_OUT_STATIC_LIBRARIES)/crtend_so.o
  99
 100 # TARGET_STRIP_MODULE:=true
 101
 102 TARGET_DEFAULT_SYSTEM_SHARED_LIBRARIES := libc libstdc++ libm
 103
 104 TARGET_CUSTOM_LD_COMMAND := true
 105 define 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)
 123 endef
 124
 125
 126 define 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)
 142 endef
 143
 144 define 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)
 158 endef
 159
 160 TARGET_GLOBAL_CFLAGS += -m32
 161 TARGET_GLOBAL_LDFLAGS += -m32 $(if $(TARGET_STRIP),-s)
 162
 163 endif #simulator