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