| # |
| # Copyright (C) 2006 The Android Open Source Project |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| # |
| |
| # Configuration for Linux on x86 as a target. |
| # Included by combo/select.mk |
| |
| # Provide a default variant. |
| ifeq ($(strip $(TARGET_ARCH_VARIANT)),) |
| TARGET_ARCH_VARIANT := x86 |
| endif |
| |
| # You can set TARGET_TOOLS_PREFIX to get gcc from somewhere else |
| ifeq ($(strip $(TARGET_TOOLS_PREFIX)),) |
| TARGET_TOOLS_PREFIX := \ |
| prebuilt/$(HOST_PREBUILT_TAG)/toolchain/i686-android-linux-4.4.3/bin/i686-android-linux- |
| endif |
| |
| TARGET_CC := $(TARGET_TOOLS_PREFIX)gcc$(HOST_EXECUTABLE_SUFFIX) |
| TARGET_CXX := $(TARGET_TOOLS_PREFIX)g++$(HOST_EXECUTABLE_SUFFIX) |
| TARGET_AR := $(TARGET_TOOLS_PREFIX)ar$(HOST_EXECUTABLE_SUFFIX) |
| TARGET_OBJCOPY := $(TARGET_TOOLS_PREFIX)objcopy$(HOST_EXECUTABLE_SUFFIX) |
| TARGET_LD := $(TARGET_TOOLS_PREFIX)ld$(HOST_EXECUTABLE_SUFFIX) |
| TARGET_STRIP := $(TARGET_TOOLS_PREFIX)strip$(HOST_EXECUTABLE_SUFFIX) |
| |
| ifeq ($(TARGET_BUILD_VARIANT),user) |
| TARGET_STRIP_COMMAND = $(TARGET_STRIP) --strip-debug $< -o $@ |
| else |
| TARGET_STRIP_COMMAND = $(TARGET_STRIP) --strip-debug $< -o $@ && \ |
| $(TARGET_OBJCOPY) --add-gnu-debuglink=$< $@ |
| endif |
| |
| ifneq ($(wildcard $(TARGET_CC)),) |
| TARGET_LIBGCC := \ |
| $(shell $(TARGET_CC) -m32 -print-file-name=libgcc.a) |
| endif |
| |
| TARGET_NO_UNDEFINED_LDFLAGS := -Wl,--no-undefined |
| |
| libc_root := bionic/libc |
| libm_root := bionic/libm |
| libstdc++_root := bionic/libstdc++ |
| libthread_db_root := bionic/libthread_db |
| |
| # unless CUSTOM_KERNEL_HEADERS is defined, we're going to use |
| # symlinks located in out/ to point to the appropriate kernel |
| # headers. see 'config/kernel_headers.make' for more details |
| # |
| ifneq ($(CUSTOM_KERNEL_HEADERS),) |
| KERNEL_HEADERS_COMMON := $(CUSTOM_KERNEL_HEADERS) |
| KERNEL_HEADERS_ARCH := $(CUSTOM_KERNEL_HEADERS) |
| else |
| KERNEL_HEADERS_COMMON := $(libc_root)/kernel/common |
| KERNEL_HEADERS_ARCH := $(libc_root)/kernel/arch-$(TARGET_ARCH) |
| endif |
| KERNEL_HEADERS := $(KERNEL_HEADERS_COMMON) $(KERNEL_HEADERS_ARCH) |
| |
| TARGET_GLOBAL_CFLAGS += \ |
| -O2 \ |
| -Ulinux \ |
| -Wa,--noexecstack \ |
| -Werror=format-security \ |
| -Wstrict-aliasing=2 \ |
| -fPIC \ |
| -ffunction-sections \ |
| -finline-functions \ |
| -finline-limit=300 \ |
| -fno-inline-functions-called-once \ |
| -fno-short-enums \ |
| -fstrict-aliasing \ |
| -funswitch-loops \ |
| -funwind-tables \ |
| -include $(call select-android-config-h,target_linux-x86) |
| |
| # Needs to be fixed later |
| #TARGET_GLOBAL_CFLAGS += \ |
| # -fstack-protector |
| |
| # Needs to be added for RELEASE |
| #TARGET_GLOBAL_CFLAGS += \ |
| # -DNDEBUG |
| |
| TARGET_GLOBAL_CPPFLAGS += \ |
| -fno-use-cxa-atexit |
| |
| ifeq ($(TARGET_ARCH_VARIANT),x86-atom) |
| # Basic ATOM flags. |
| TARGET_GLOBAL_CFLAGS += -march=atom -mstackrealign -mfpmath=sse |
| |
| # There are various levels of ATOM processors out there. Different ones have different |
| # capabilities. This first define matches the NDK's minimum ABI requirements. |
| # Note: Not all of the flags set here are actually used in Android. They are provided |
| # to allow for the addition of corresponding optimizations. |
| TARGET_GLOBAL_CFLAGS += -DUSE_MMX -DUSE_SSE -DUSE_SSE2 -DUSE_SSE3 |
| |
| # If you wish to build a BSP that will only be used on hardware that has additional |
| # available instructions, enable them here. By default, this is commented off so that |
| # the default images can run on all processors that are NDK ABI compliant. |
| # TARGET_GLOBAL_CFLAGS += -DUSE_SSSE3 |
| else |
| # Plain 'x86' - lowest common denominator. This should run pretty much on any hardware. |
| # |
| # Note: The NDK's ABI (see the NDK ABI documentation) requires many of the more recent |
| # instruction set additions. You can build an "x86" BSP that will run on very old hardware, |
| # but it won't be able to run much of the x86 NDK compliant code. |
| TARGET_GLOBAL_CFLAGS += -march=i686 |
| endif |
| |
| TARGET_GLOBAL_CFLAGS += -mbionic |
| TARGET_GLOBAL_CFLAGS += -D__ANDROID__ |
| |
| TARGET_GLOBAL_LDFLAGS += -m32 |
| TARGET_GLOBAL_LDFLAGS += -Wl,-z,noexecstack |
| TARGET_GLOBAL_LDFLAGS += -Wl,--gc-sections |
| |
| TARGET_C_INCLUDES := \ |
| $(libc_root)/arch-x86/include \ |
| $(libc_root)/include \ |
| $(libstdc++_root)/include \ |
| $(KERNEL_HEADERS) \ |
| $(libm_root)/include \ |
| $(libm_root)/include/i387 \ |
| $(libthread_db_root)/include |
| |
| TARGET_CRTBEGIN_STATIC_O := $(TARGET_OUT_STATIC_LIBRARIES)/crtbegin_static.o |
| TARGET_CRTBEGIN_DYNAMIC_O := $(TARGET_OUT_STATIC_LIBRARIES)/crtbegin_dynamic.o |
| TARGET_CRTEND_O := $(TARGET_OUT_STATIC_LIBRARIES)/crtend_android.o |
| |
| TARGET_CRTBEGIN_SO_O := $(TARGET_OUT_STATIC_LIBRARIES)/crtbegin_so.o |
| TARGET_CRTEND_SO_O := $(TARGET_OUT_STATIC_LIBRARIES)/crtend_so.o |
| |
| TARGET_STRIP_MODULE:=true |
| |
| TARGET_DEFAULT_SYSTEM_SHARED_LIBRARIES := libc libstdc++ libm |
| |
| TARGET_CUSTOM_LD_COMMAND := true |
| define transform-o-to-shared-lib-inner |
| $(hide) $(PRIVATE_CXX) \ |
| $(PRIVATE_TARGET_GLOBAL_LDFLAGS) \ |
| -nostdlib -Wl,-soname,$(notdir $@) \ |
| -shared -Bsymbolic \ |
| $(TARGET_GLOBAL_CFLAGS) \ |
| $(PRIVATE_TARGET_GLOBAL_LD_DIRS) \ |
| $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_SO_O)) \ |
| $(PRIVATE_ALL_OBJECTS) \ |
| -Wl,--whole-archive \ |
| $(call normalize-target-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \ |
| -Wl,--no-whole-archive \ |
| $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--start-group) \ |
| $(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \ |
| $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--end-group) \ |
| $(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \ |
| -o $@ \ |
| $(PRIVATE_LDFLAGS) \ |
| $(PRIVATE_TARGET_LIBGCC) \ |
| $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_SO_O)) |
| endef |
| |
| |
| define transform-o-to-executable-inner |
| $(hide) $(PRIVATE_CXX) \ |
| $(TARGET_GLOBAL_LDFLAGS) \ |
| -nostdlib -Bdynamic \ |
| -Wl,-dynamic-linker,/system/bin/linker \ |
| -Wl,-z,nocopyreloc \ |
| -o $@ \ |
| $(TARGET_GLOBAL_LD_DIRS) \ |
| -Wl,-rpath-link=$(TARGET_OUT_INTERMEDIATE_LIBRARIES) \ |
| $(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \ |
| $(if $(filter true,$(PRIVATE_NO_CRT)),,$(TARGET_CRTBEGIN_DYNAMIC_O)) \ |
| $(PRIVATE_ALL_OBJECTS) \ |
| $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--start-group) \ |
| $(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \ |
| $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--end-group) \ |
| $(PRIVATE_LDFLAGS) \ |
| $(TARGET_LIBGCC) \ |
| $(if $(filter true,$(PRIVATE_NO_CRT)),,$(TARGET_CRTEND_O)) |
| endef |
| |
| define transform-o-to-static-executable-inner |
| $(hide) $(PRIVATE_CXX) \ |
| $(TARGET_GLOBAL_LDFLAGS) \ |
| -nostdlib -Bstatic \ |
| -o $@ \ |
| $(TARGET_GLOBAL_LD_DIRS) \ |
| $(if $(filter true,$(PRIVATE_NO_CRT)),,$(TARGET_CRTBEGIN_STATIC_O)) \ |
| $(PRIVATE_LDFLAGS) \ |
| $(PRIVATE_ALL_OBJECTS) \ |
| -Wl,--start-group \ |
| $(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \ |
| $(TARGET_LIBGCC) \ |
| -Wl,--end-group \ |
| $(if $(filter true,$(PRIVATE_NO_CRT)),,$(TARGET_CRTEND_O)) |
| endef |