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platform_build/core/combo/TARGET_linux-arm64.mk
Dan Albert 216ecac61e Fix prebuilts for target builds with USE_MINGW=1. 
USE_MINGW=1 mm didn't work in directories that contained target modules
because the build system would use the Windows locations and extensions
when trying to find the host GCC prebuilts. Windows is the target OS,
not the OS we're building from.

Change-Id: Ic994fed15388d0c7d393f71ba28fe7afdc659f5c
2015-05-04 22:44:39 +00:00

165 lines
5.4 KiB
Makefile
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#
# Copyright (C) 2013 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 ARM.
# Included by combo/select.mk
# You can set TARGET_ARCH_VARIANT to use an arch version other
# than ARMv5TE. Each value should correspond to a file named
# $(BUILD_COMBOS)/arch/<name>.mk which must contain
# makefile variable definitions similar to the preprocessor
# defines in build/core/combo/include/arch/<combo>/AndroidConfig.h. Their
# purpose is to allow module Android.mk files to selectively compile
# different versions of code based upon the funtionality and
# instructions available in a given architecture version.
#
# The blocks also define specific arch_variant_cflags, which
# include defines, and compiler settings for the given architecture
# version.
#
ifeq ($(strip $(TARGET_ARCH_VARIANT)),)
TARGET_ARCH_VARIANT := armv8
endif
# Decouple NDK library selection with platform compiler version
TARGET_NDK_GCC_VERSION := 4.9
ifeq ($(strip $(TARGET_GCC_VERSION_EXP)),)
TARGET_GCC_VERSION := 4.9
else
TARGET_GCC_VERSION := $(TARGET_GCC_VERSION_EXP)
endif
TARGET_ARCH_SPECIFIC_MAKEFILE := $(BUILD_COMBOS)/arch/$(TARGET_ARCH)/$(TARGET_ARCH_VARIANT).mk
ifeq ($(strip $(wildcard $(TARGET_ARCH_SPECIFIC_MAKEFILE))),)
$(error Unknown ARM architecture version: $(TARGET_ARCH_VARIANT))
endif
include $(TARGET_ARCH_SPECIFIC_MAKEFILE)
include $(BUILD_SYSTEM)/combo/fdo.mk
# You can set TARGET_TOOLS_PREFIX to get gcc from somewhere else
ifeq ($(strip $(TARGET_TOOLS_PREFIX)),)
TARGET_TOOLCHAIN_ROOT := prebuilts/gcc/$(HOST_PREBUILT_TAG)/aarch64/aarch64-linux-android-$(TARGET_GCC_VERSION)
TARGET_TOOLS_PREFIX := $(TARGET_TOOLCHAIN_ROOT)/bin/aarch64-linux-android-
endif
TARGET_CC := $(TARGET_TOOLS_PREFIX)gcc
TARGET_CXX := $(TARGET_TOOLS_PREFIX)g++
TARGET_AR := $(TARGET_TOOLS_PREFIX)ar
TARGET_OBJCOPY := $(TARGET_TOOLS_PREFIX)objcopy
TARGET_LD := $(TARGET_TOOLS_PREFIX)ld
TARGET_READELF := $(TARGET_TOOLS_PREFIX)readelf
TARGET_STRIP := $(TARGET_TOOLS_PREFIX)strip
TARGET_NO_UNDEFINED_LDFLAGS := -Wl,--no-undefined
TARGET_GLOBAL_CFLAGS += \
-fno-strict-aliasing \
android_config_h := $(call select-android-config-h,linux-arm64)
TARGET_GLOBAL_CFLAGS += \
-fstack-protector \
-ffunction-sections \
-fdata-sections \
-funwind-tables \
-Wa,--noexecstack \
-Werror=format-security \
-D_FORTIFY_SOURCE=2 \
-fno-short-enums \
-no-canonical-prefixes \
-fno-canonical-system-headers \
$(arch_variant_cflags) \
-include $(android_config_h) \
-I $(dir $(android_config_h))
# Help catch common 32/64-bit errors.
TARGET_GLOBAL_CFLAGS += \
-Werror=pointer-to-int-cast \
-Werror=int-to-pointer-cast \
-Werror=implicit-function-declaration \
TARGET_GLOBAL_CFLAGS += -fno-strict-volatile-bitfields
# This is to avoid the dreaded warning compiler message:
# note: the mangling of 'va_list' has changed in GCC 4.4
#
# The fact that the mangling changed does not affect the NDK ABI
# very fortunately (since none of the exposed APIs used va_list
# in their exported C++ functions). Also, GCC 4.5 has already
# removed the warning from the compiler.
#
TARGET_GLOBAL_CFLAGS += -Wno-psabi
TARGET_GLOBAL_LDFLAGS += \
-Wl,-z,noexecstack \
-Wl,-z,relro \
-Wl,-z,now \
-Wl,--build-id=md5 \
-Wl,--warn-shared-textrel \
-Wl,--fatal-warnings \
-Wl,-maarch64linux \
-Wl,--hash-style=gnu \
$(arch_variant_ldflags)
# Disable transitive dependency library symbol resolving.
TARGET_GLOBAL_LDFLAGS += -Wl,--allow-shlib-undefined
TARGET_GLOBAL_CPPFLAGS += -fvisibility-inlines-hidden
# More flags/options can be added here
TARGET_RELEASE_CFLAGS := \
-DNDEBUG \
-O2 -g \
-Wstrict-aliasing=2 \
-fgcse-after-reload \
-frerun-cse-after-loop \
-frename-registers
libc_root := bionic/libc
libm_root := bionic/libm
TARGET_LIBGCC := $(shell $(TARGET_CC) $(TARGET_GLOBAL_CFLAGS) \
-print-libgcc-file-name)
TARGET_LIBATOMIC := $(shell $(TARGET_CC) $(TARGET_GLOBAL_CFLAGS) \
-print-file-name=libatomic.a)
TARGET_LIBGCOV := $(shell $(TARGET_CC) $(TARGET_GLOBAL_CFLAGS) \
-print-file-name=libgcov.a)
KERNEL_HEADERS_COMMON := $(libc_root)/kernel/uapi
KERNEL_HEADERS_ARCH := $(libc_root)/kernel/uapi/asm-$(TARGET_ARCH)
KERNEL_HEADERS := $(KERNEL_HEADERS_COMMON) $(KERNEL_HEADERS_ARCH)
TARGET_C_INCLUDES := \
$(libc_root)/arch-arm64/include \
$(libc_root)/include \
$(KERNEL_HEADERS) \
$(libm_root)/include \
$(libm_root)/include/arm64 \
TARGET_CRTBEGIN_STATIC_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_static.o
TARGET_CRTBEGIN_DYNAMIC_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_dynamic.o
TARGET_CRTEND_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_android.o
TARGET_CRTBEGIN_SO_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_so.o
TARGET_CRTEND_SO_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_so.o
TARGET_PACK_MODULE_RELOCATIONS := true
TARGET_DEFAULT_SYSTEM_SHARED_LIBRARIES := libc libm
TARGET_LINKER := /system/bin/linker64
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