TARGET_linux-mips64.mk revision 0c87f3d733f289978dd2fa6fd4df324a52f0a4f4 
1#
2# Copyright (C) 2013 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 MIPS64.
18# Included by combo/select.mk
19
20# You can set TARGET_ARCH_VARIANT to use an arch version other
21# than mips64. Each value should correspond to a file named
22# $(BUILD_COMBOS)/arch/<name>.mk which must contain
23# makefile variable definitions similar to the preprocessor
24# defines in build/core/combo/include/arch/<combo>/AndroidConfig.h. Their
25# purpose is to allow module Android.mk files to selectively compile
26# different versions of code based upon the funtionality and
27# instructions available in a given architecture version.
28#
29# The blocks also define specific arch_variant_cflags, which
30# include defines, and compiler settings for the given architecture
31# version.
32#
33ifeq ($(strip $(TARGET_ARCH_VARIANT)),)
34TARGET_ARCH_VARIANT := mips64r2
35endif
36
37# Decouple NDK library selection with platform compiler version
38TARGET_NDK_GCC_VERSION := 4.8
39
40ifeq ($(strip $(TARGET_GCC_VERSION_EXP)),)
41TARGET_GCC_VERSION := 4.8
42else
43TARGET_GCC_VERSION := $(TARGET_GCC_VERSION_EXP)
44endif
45
46TARGET_IS_64_BIT := true
47
48TARGET_ARCH_SPECIFIC_MAKEFILE := $(BUILD_COMBOS)/arch/$(TARGET_ARCH)/$(TARGET_ARCH_VARIANT).mk
49ifeq ($(strip $(wildcard $(TARGET_ARCH_SPECIFIC_MAKEFILE))),)
50$(error Unknown MIPS architecture variant: $(TARGET_ARCH_VARIANT))
51endif
52
53# TODO: Enable Clang when its mips64 prebuilt is added
54WITHOUT_TARGET_CLANG := true
55
56include $(TARGET_ARCH_SPECIFIC_MAKEFILE)
57
58# You can set TARGET_TOOLS_PREFIX to get gcc from somewhere else
59ifeq ($(strip $(TARGET_TOOLS_PREFIX)),)
60TARGET_TOOLCHAIN_ROOT := prebuilts/gcc/$(HOST_PREBUILT_TAG)/mips/mips64el-linux-android-$(TARGET_GCC_VERSION)
61TARGET_TOOLS_PREFIX := $(TARGET_TOOLCHAIN_ROOT)/bin/mips64el-linux-android-
62endif
63
64TARGET_CC := $(TARGET_TOOLS_PREFIX)gcc$(HOST_EXECUTABLE_SUFFIX)
65TARGET_CXX := $(TARGET_TOOLS_PREFIX)g++$(HOST_EXECUTABLE_SUFFIX)
66TARGET_AR := $(TARGET_TOOLS_PREFIX)ar$(HOST_EXECUTABLE_SUFFIX)
67TARGET_OBJCOPY := $(TARGET_TOOLS_PREFIX)objcopy$(HOST_EXECUTABLE_SUFFIX)
68TARGET_LD := $(TARGET_TOOLS_PREFIX)ld$(HOST_EXECUTABLE_SUFFIX)
69TARGET_READELF := $(TARGET_TOOLS_PREFIX)readelf$(HOST_EXECUTABLE_SUFFIX)
70TARGET_STRIP := $(TARGET_TOOLS_PREFIX)strip$(HOST_EXECUTABLE_SUFFIX)
71
72TARGET_NO_UNDEFINED_LDFLAGS := -Wl,--no-undefined
73
74TARGET_mips_CFLAGS :=	-O2 \
75			-fomit-frame-pointer \
76			-fno-strict-aliasing    \
77			-funswitch-loops
78
79# Set FORCE_MIPS_DEBUGGING to "true" in your buildspec.mk
80# or in your environment to gdb debugging easier.
81# Don't forget to do a clean build.
82ifeq ($(FORCE_MIPS_DEBUGGING),true)
83  TARGET_mips_CFLAGS += -fno-omit-frame-pointer
84endif
85
86android_config_h := $(call select-android-config-h,linux-mips64)
87
88TARGET_GLOBAL_CFLAGS += \
89			$(TARGET_mips_CFLAGS) \
90			-U__unix -U__unix__ -Umips \
91			-fpic -fPIE\
92			-ffunction-sections \
93			-fdata-sections \
94			-funwind-tables \
95			-Wa,--noexecstack \
96			-Werror=format-security \
97			-D_FORTIFY_SOURCE=2 \
98			-no-canonical-prefixes \
99			-fno-canonical-system-headers \
100			$(arch_variant_cflags) \
101			-include $(android_config_h) \
102			-I $(dir $(android_config_h))
103
104# This warning causes dalvik not to build with gcc 4.6+ and -Werror.
105# We cannot turn it off blindly since the option is not available
106# in gcc-4.4.x.
107ifneq ($(filter 4.6 4.6.% 4.7 4.7.% 4.8, $(TARGET_GCC_VERSION)),)
108TARGET_GLOBAL_CFLAGS += -Wno-unused-but-set-variable \
109                        -fno-strict-volatile-bitfields
110endif
111
112# This is to avoid the dreaded warning compiler message:
113#   note: the mangling of 'va_list' has changed in GCC 4.4
114#
115# The fact that the mangling changed does not affect the NDK ABI
116# very fortunately (since none of the exposed APIs used va_list
117# in their exported C++ functions). Also, GCC 4.5 has already
118# removed the warning from the compiler.
119#
120TARGET_GLOBAL_CFLAGS += -Wno-psabi
121
122ifneq ($(ARCH_MIPS_PAGE_SHIFT),)
123TARGET_GLOBAL_CFLAGS += -DPAGE_SHIFT=$(ARCH_MIPS_PAGE_SHIFT)
124endif
125
126TARGET_GLOBAL_LDFLAGS += \
127			-Wl,-z,noexecstack \
128			-Wl,-z,relro \
129			-Wl,-z,now \
130			-Wl,--warn-shared-textrel \
131			-Wl,--fatal-warnings \
132			$(arch_variant_ldflags)
133
134TARGET_GLOBAL_CPPFLAGS += -fvisibility-inlines-hidden
135
136# More flags/options can be added here
137TARGET_RELEASE_CFLAGS := \
138			-DNDEBUG \
139			-g \
140			-Wstrict-aliasing=2 \
141			-fgcse-after-reload \
142			-frerun-cse-after-loop \
143			-frename-registers
144
145libc_root := bionic/libc
146libm_root := bionic/libm
147libstdc++_root := bionic/libstdc++
148libthread_db_root := bionic/libthread_db
149
150
151## on some hosts, the target cross-compiler is not available so do not run this command
152ifneq ($(wildcard $(TARGET_CC)),)
153# We compile with the global cflags to ensure that
154# any flags which affect libgcc are correctly taken
155# into account.
156TARGET_LIBGCC := \
157  $(shell $(TARGET_CC) $(TARGET_GLOBAL_CFLAGS) -print-file-name=libgcc.a)
158TARGET_LIBATOMIC := \
159  $(shell $(TARGET_CC) $(TARGET_GLOBAL_CFLAGS) -print-file-name=libatomic.a)
160LIBGCC_EH := $(shell $(TARGET_CC) $(TARGET_GLOBAL_CFLAGS) -print-file-name=libgcc_eh.a)
161ifneq ($(LIBGCC_EH),libgcc_eh.a)
162  TARGET_LIBGCC += $(LIBGCC_EH)
163endif
164target_libgcov := $(shell $(TARGET_CC) $(TARGET_GLOBAL_CFLAGS) \
165        --print-file-name=libgcov.a)
166endif
167
168# Define FDO (Feedback Directed Optimization) options.
169
170TARGET_FDO_CFLAGS:=
171TARGET_FDO_LIB:=
172
173ifneq ($(strip $(BUILD_FDO_INSTRUMENT)),)
174  # Set BUILD_FDO_INSTRUMENT=true to turn on FDO instrumentation.
175  # The profile will be generated on /data/local/tmp/profile on the device.
176  TARGET_FDO_CFLAGS := -fprofile-generate=/data/local/tmp/profile -DANDROID_FDO
177  TARGET_FDO_LIB := $(target_libgcov)
178else
179  # If BUILD_FDO_INSTRUMENT is turned off, then consider doing the FDO optimizations.
180  # Set TARGET_FDO_PROFILE_PATH to set a custom profile directory for your build.
181  ifeq ($(strip $(TARGET_FDO_PROFILE_PATH)),)
182    TARGET_FDO_PROFILE_PATH := fdo/profiles/$(TARGET_ARCH)/$(TARGET_ARCH_VARIANT)
183  else
184    ifeq ($(strip $(wildcard $(TARGET_FDO_PROFILE_PATH))),)
185      $(warning Custom TARGET_FDO_PROFILE_PATH supplied, but directory does not exist. Turn off FDO.)
186    endif
187  endif
188
189  # If the FDO profile directory can't be found, then FDO is off.
190  ifneq ($(strip $(wildcard $(TARGET_FDO_PROFILE_PATH))),)
191    TARGET_FDO_CFLAGS := -fprofile-use=$(TARGET_FDO_PROFILE_PATH) -DANDROID_FDO
192    TARGET_FDO_LIB := $(target_libgcov)
193  endif
194endif
195
196
197KERNEL_HEADERS_COMMON := $(libc_root)/kernel/uapi
198KERNEL_HEADERS_ARCH   := $(libc_root)/kernel/uapi/asm-mips
199# TODO: perhaps use $(libc_root)/kernel/uapi/asm-$(TARGET_ARCH) instead of asm-mips ?
200KERNEL_HEADERS := $(KERNEL_HEADERS_COMMON) $(KERNEL_HEADERS_ARCH)
201
202TARGET_C_INCLUDES := \
203	$(libc_root)/arch-mips64/include \
204	$(libc_root)/include \
205	$(libstdc++_root)/include \
206	$(KERNEL_HEADERS) \
207	$(libm_root)/include \
208	$(libm_root)/include/mips \
209	$(libthread_db_root)/include
210# TODO: perhaps use $(libm_root)/include/mips64 instead of mips ?
211
212TARGET_CRTBEGIN_STATIC_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_static.o
213TARGET_CRTBEGIN_DYNAMIC_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_dynamic.o
214TARGET_CRTEND_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_android.o
215
216TARGET_CRTBEGIN_SO_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_so.o
217TARGET_CRTEND_SO_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_so.o
218
219TARGET_STRIP_MODULE:=true
220
221TARGET_DEFAULT_SYSTEM_SHARED_LIBRARIES := libc libstdc++ libm
222
223TARGET_CUSTOM_LD_COMMAND := true
224
225define transform-o-to-shared-lib-inner
226$(hide) $(PRIVATE_CXX) \
227	-nostdlib -Wl,-soname,$(notdir $@) \
228	-Wl,--gc-sections \
229	-Wl,-shared,-Bsymbolic \
230	$(PRIVATE_TARGET_GLOBAL_LD_DIRS) \
231	$(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_SO_O)) \
232	$(PRIVATE_ALL_OBJECTS) \
233	-Wl,--whole-archive \
234	$(call normalize-target-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \
235	-Wl,--no-whole-archive \
236	$(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--start-group) \
237	$(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \
238	$(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--end-group) \
239	$(PRIVATE_TARGET_LIBGCC) \
240	$(PRIVATE_TARGET_FDO_LIB) \
241	$(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \
242	-o $@ \
243	$(PRIVATE_TARGET_GLOBAL_LDFLAGS) \
244	$(PRIVATE_LDFLAGS) \
245	$(PRIVATE_TARGET_LIBATOMIC) \
246	$(PRIVATE_TARGET_LIBGCC) \
247	$(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_SO_O)) \
248	$(PRIVATE_LDLIBS)
249endef
250
251define transform-o-to-executable-inner
252$(hide) $(PRIVATE_CXX) -nostdlib -Bdynamic -fPIE -pie \
253	-Wl,-dynamic-linker,/system/bin/linker64 \
254	-Wl,--gc-sections \
255	-Wl,-z,nocopyreloc \
256	$(PRIVATE_TARGET_GLOBAL_LD_DIRS) \
257	-Wl,-rpath-link=$(PRIVATE_TARGET_OUT_INTERMEDIATE_LIBRARIES) \
258	$(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_DYNAMIC_O)) \
259	$(PRIVATE_ALL_OBJECTS) \
260	-Wl,--whole-archive \
261	$(call normalize-target-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \
262	-Wl,--no-whole-archive \
263	$(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--start-group) \
264	$(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \
265	$(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--end-group) \
266	$(PRIVATE_TARGET_LIBGCC) \
267	$(PRIVATE_TARGET_FDO_LIB) \
268	$(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \
269	-o $@ \
270	$(PRIVATE_TARGET_GLOBAL_LDFLAGS) \
271	$(PRIVATE_LDFLAGS) \
272	$(PRIVATE_TARGET_LIBATOMIC) \
273	$(PRIVATE_TARGET_LIBGCC) \
274	$(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_O)) \
275	$(PRIVATE_LDLIBS)
276endef
277
278define transform-o-to-static-executable-inner
279$(hide) $(PRIVATE_CXX) -nostdlib -Bstatic \
280	-Wl,--gc-sections \
281	-o $@ \
282	$(PRIVATE_TARGET_GLOBAL_LD_DIRS) \
283	$(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_STATIC_O)) \
284	$(PRIVATE_TARGET_GLOBAL_LDFLAGS) \
285	$(PRIVATE_LDFLAGS) \
286	$(PRIVATE_ALL_OBJECTS) \
287	-Wl,--whole-archive \
288	$(call normalize-target-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \
289	-Wl,--no-whole-archive \
290	$(call normalize-target-libraries,$(filter-out %libc_nomalloc.a,$(filter-out %libc.a,$(PRIVATE_ALL_STATIC_LIBRARIES)))) \
291	-Wl,--start-group \
292	$(call normalize-target-libraries,$(filter %libc.a,$(PRIVATE_ALL_STATIC_LIBRARIES))) \
293	$(call normalize-target-libraries,$(filter %libc_nomalloc.a,$(PRIVATE_ALL_STATIC_LIBRARIES))) \
294	$(PRIVATE_TARGET_FDO_LIB) \
295	$(PRIVATE_TARGET_LIBATOMIC) \
296	$(PRIVATE_TARGET_LIBGCC) \
297	-Wl,--end-group \
298	$(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_O))
299endef
300