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#
# 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
ifeq ($(TARGET_SIMULATOR),true)
# When building for the simulator, use the HOST settings as TARGET settings
TARGET_CC := $(HOST_CC)
TARGET_CXX := $(HOST_CXX)
TARGET_AR := $(HOST_AR)
TARGET_GLOBAL_CFLAGS := $(HOST_GLOBAL_CFLAGS) -m32
TARGET_GLOBAL_LDFLAGS := $(HOST_GLOBAL_LDFLAGS) -m32 -lpthread
TARGET_NO_UNDEFINED_LDFLAGS := $(HOST_NO_UNDEFINED_LDFLAGS)
ifeq ($(strip $(TARGET_ARCH_VARIANT)),)
TARGET_ARCH_VARIANT := x86
endif
else #simulator
# Provide a default variant.
ifeq ($(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)
TARGET_STRIP_COMMAND = $(TARGET_STRIP) --strip-debug $< -o $@
ifneq ($(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 $(call select-android-config-h,target_linux-x86)
TARGET_GLOBAL_CFLAGS += -fstack-protector
# Needs to be added for RELEASE
#TARGET_GLOBAL_CFLAGS += \
# -DNDEBUG
TARGET_GLOBAL_CPPFLAGS += \
-fno-use-cxa-atexit
ifeq ($(TARGET_ARCH_VARIANT),x86-atom)
TARGET_GLOBAL_CFLAGS += -march=atom -mstackrealign -DUSE_SSSE3 -DUSE_SSE2 -mfpmath=sse
else
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 \
$(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \
$(call normalize-target-libraries,$(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) \
$(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \
$(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
endif #simulator
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