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Commit 06afc1c5 authored by Raghu Gandham's avatar Raghu Gandham
Browse files

Support for MIPS Build targets. 



Change-Id: I14c27305298ce36d5c100abf25489275c2269c5f
Signed-off-by: default avatarChris Dearman <chris@mips.com>
Signed-off-by: default avatarRaghu Gandham <raghu@mips.com>
parent 1603e3a9

core/combo/TARGET_linux-mips.mk

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#

# Copyright (C) 2010 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 MIPS.

# Included by combo/select.mk



# You can set TARGET_ARCH_VARIANT to use an arch version other

# than mips32r2-fp. 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 system/core/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 := mips32r2-fp

endif



TARGET_ARCH_SPECIFIC_MAKEFILE := $(BUILD_COMBOS)/arch/$(TARGET_ARCH)/$(TARGET_ARCH_VARIANT).mk

ifeq ($(strip $(wildcard $(TARGET_ARCH_SPECIFIC_MAKEFILE))),)

$(error Unknown MIPS architecture variant: $(TARGET_ARCH_VARIANT))

endif



include $(TARGET_ARCH_SPECIFIC_MAKEFILE)



# 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)/mips/mipsel-linux-android-4.6

TARGET_TOOLS_PREFIX := $(TARGET_TOOLCHAIN_ROOT)/bin/mipsel-linux-android-

endif



# Only define these if there's actually a gcc in there.

# The gcc toolchain does not exists for windows/cygwin. In this case, do not reference it.

ifneq ($(wildcard $(TARGET_TOOLS_PREFIX)gcc$(HOST_EXECUTABLE_SUFFIX)),)

    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-all $< -o $@

    else

        TARGET_STRIP_COMMAND = $(TARGET_STRIP) --strip-all $< -o $@ && \

	    $(TARGET_OBJCOPY) --add-gnu-debuglink=$< $@

    endif

endif



TARGET_NO_UNDEFINED_LDFLAGS := -Wl,--no-undefined



TARGET_mips_CFLAGS :=	-O2 \

			-fomit-frame-pointer \

			-fno-strict-aliasing    \

			-funswitch-loops



# Set FORCE_MIPS_DEBUGGING to "true" in your buildspec.mk

# or in your environment to gdb debugging easier.

# Don't forget to do a clean build.

ifeq ($(FORCE_MIPS_DEBUGGING),true)

  TARGET_mips_CFLAGS += -fno-omit-frame-pointer

endif



android_config_h := $(call select-android-config-h,linux-mips)

arch_include_dir := $(dir $(android_config_h))



TARGET_GLOBAL_CFLAGS += \

			$(TARGET_mips_CFLAGS) \

			-Ulinux -U__unix -U__unix__ -Umips \

			-fpic \

			-ffunction-sections \

			-fdata-sections \

			-funwind-tables \

			-Werror=format-security \

			$(arch_variant_cflags) \

			-include $(android_config_h) \

			-I $(arch_include_dir)



# This warning causes dalvik not to build with gcc 4.6.x and -Werror.

# We cannot turn it off blindly since the option is not available

# in gcc-4.4.x.

ifneq ($(filter 4.6.%, $(shell $(TARGET_CC) --version)),)

TARGET_GLOBAL_CFLAGS += -Wno-unused-but-set-variable \

                        -fno-strict-volatile-bitfields

endif



# 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



ifneq ($(ARCH_MIPS_PAGE_SHIFT),)

TARGET_GLOBAL_CFLAGS += -DPAGE_SHIFT=$(ARCH_MIPS_PAGE_SHIFT)

endif



TARGET_GLOBAL_LDFLAGS += \

			$(arch_variant_ldflags)



TARGET_GLOBAL_CPPFLAGS += -fvisibility-inlines-hidden \

				-fno-use-cxa-atexit



# More flags/options can be added here

TARGET_RELEASE_CFLAGS := \

			-DNDEBUG \

			-g \

			-Wstrict-aliasing=2 \

			-fgcse-after-reload \

			-frerun-cse-after-loop \

			-frename-registers



libc_root := bionic/libc

libm_root := bionic/libm

libstdc++_root := bionic/libstdc++

libthread_db_root := bionic/libthread_db





## on some hosts, the target cross-compiler is not available so do not run this command

ifneq ($(wildcard $(TARGET_CC)),)

# We compile with the global cflags to ensure that

# any flags which affect libgcc are correctly taken

# into account.

TARGET_LIBGCC := \

  $(shell $(TARGET_CC) $(TARGET_GLOBAL_CFLAGS) -print-file-name=libgcc.a)

LIBGCC_EH := $(shell $(TARGET_CC) $(TARGET_GLOBAL_CFLAGS) -print-file-name=libgcc_eh.a)

ifneq ($(LIBGCC_EH),libgcc_eh.a)

  TARGET_LIBGCC += $(LIBGCC_EH)

endif

endif



# Define FDO (Feedback Directed Optimization) options.



TARGET_FDO_CFLAGS:=

TARGET_FDO_LIB:=



target_libgcov := $(shell $(TARGET_CC) $(TARGET_GLOBAL_CFLAGS) \

        --print-file-name=libgcov.a)

ifneq ($(strip $(BUILD_FDO_INSTRUMENT)),)

  # Set BUILD_FDO_INSTRUMENT=true to turn on FDO instrumentation.

  # The profile will be generated on /data/local/tmp/profile on the device.

  TARGET_FDO_CFLAGS := -fprofile-generate=/data/local/tmp/profile -DANDROID_FDO

  TARGET_FDO_LIB := $(target_libgcov)

else

  # If BUILD_FDO_INSTRUMENT is turned off, then consider doing the FDO optimizations.

  # Set TARGET_FDO_PROFILE_PATH to set a custom profile directory for your build.

  ifeq ($(strip $(TARGET_FDO_PROFILE_PATH)),)

    TARGET_FDO_PROFILE_PATH := fdo/profiles/$(TARGET_ARCH)/$(TARGET_ARCH_VARIANT)

  else

    ifeq ($(strip $(wildcard $(TARGET_FDO_PROFILE_PATH))),)

      $(warning Custom TARGET_FDO_PROFILE_PATH supplied, but directory does not exist. Turn off FDO.)

    endif

  endif



  # If the FDO profile directory can't be found, then FDO is off.

  ifneq ($(strip $(wildcard $(TARGET_FDO_PROFILE_PATH))),)

    TARGET_FDO_CFLAGS := -fprofile-use=$(TARGET_FDO_PROFILE_PATH) -DANDROID_FDO

    TARGET_FDO_LIB := $(target_libgcov)

  endif

endif





# 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_C_INCLUDES := \

	$(libc_root)/arch-mips/include \

	$(libc_root)/include \

	$(libstdc++_root)/include \

	$(KERNEL_HEADERS) \

	$(libm_root)/include \

	$(libm_root)/include/mips \

	$(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



# Enable the Dalvik JIT compiler if not already specified.

ifeq ($(strip $(WITH_JIT)),)

    WITH_JIT := true

endif



define transform-o-to-shared-lib-inner

$(hide) $(PRIVATE_CXX) \

	-nostdlib -Wl,-soname,$(notdir $@) \

	-Wl,--gc-sections \

	-shared -Bsymbolic \

	$(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_TARGET_GLOBAL_LDFLAGS) \

	$(PRIVATE_LDFLAGS) \

	$(PRIVATE_TARGET_FDO_LIB) \

	$(PRIVATE_TARGET_LIBGCC) \

	$(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_SO_O))

endef



define transform-o-to-executable-inner

$(hide) $(PRIVATE_CXX) -nostdlib -Bdynamic \

	-Wl,-dynamic-linker,/system/bin/linker \

	-Wl,--gc-sections \

	-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) \

	$(TARGET_GLOBAL_LDFLAGS) \

	$(PRIVATE_LDFLAGS) \

	$(TARGET_FDO_LIB) \

	$(TARGET_LIBGCC) \

	$(if $(filter true,$(PRIVATE_NO_CRT)),,$(TARGET_CRTEND_O))

endef



define transform-o-to-static-executable-inner

$(hide) $(PRIVATE_CXX) -nostdlib -Bstatic \

	-Wl,--gc-sections \

	-o $@ \

	$(TARGET_GLOBAL_LD_DIRS) \

	$(if $(filter true,$(PRIVATE_NO_CRT)),,$(TARGET_CRTBEGIN_STATIC_O)) \

	$(TARGET_GLOBAL_LDFLAGS) \

	$(PRIVATE_LDFLAGS) \

	$(PRIVATE_ALL_OBJECTS) \

	$(call normalize-target-libraries,$(filter-out %libc_nomalloc.a,$(filter-out %libc.a,$(PRIVATE_ALL_STATIC_LIBRARIES)))) \

	-Wl,--start-group \

	$(call normalize-target-libraries,$(filter %libc.a,$(PRIVATE_ALL_STATIC_LIBRARIES))) \

	$(call normalize-target-libraries,$(filter %libc_nomalloc.a,$(PRIVATE_ALL_STATIC_LIBRARIES))) \

	$(TARGET_FDO_LIB) \

	$(TARGET_LIBGCC) \

	-Wl,--end-group \

	$(if $(filter true,$(PRIVATE_NO_CRT)),,$(TARGET_CRTEND_O))

endef

core/combo/arch/mips/mips32-fp.mk

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# Configuration for Android on MIPS.

# Generating binaries for MIPS32/hard-float/little-endian



ARCH_MIPS_HAS_FPU	:=true

ARCH_HAVE_ALIGNED_DOUBLES :=true

arch_variant_cflags := \

    -EL \

    -march=mips32 \

    -mtune=mips32 \

    -mips32 \

    -mhard-float



arch_variant_ldflags := \

    -EL

core/combo/arch/mips/mips32.mk

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# Configuration for Android on MIPS.

# Generating binaries for MIPS32/soft-float/little-endian



arch_variant_cflags := \

    -EL \

    -march=mips32 \

    -mtune=mips32 \

    -mips32 \

    -msoft-float



arch_variant_ldflags := \

    -EL

core/combo/arch/mips/mips32r2-fp.mk

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# Configuration for Android on MIPS.

# Generating binaries for MIPS32R2/hard-float/little-endian



ARCH_MIPS_HAS_FPU	:=true

ARCH_HAVE_ALIGNED_DOUBLES :=true

arch_variant_cflags := \

    -EL \

    -march=mips32r2 \

    -mtune=mips32r2 \

    -mips32r2 \

    -mhard-float



arch_variant_ldflags := \

    -EL

core/combo/arch/mips/mips32r2.mk

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# Configuration for Android on MIPS.

# Generating binaries for MIPS32R2/soft-float/little-endian



arch_variant_cflags := \

    -EL \

    -march=mips32r2 \

    -mtune=mips32r2 \

    -mips32r2 \

    -msoft-float



arch_variant_ldflags := \

    -EL