Home | History | Annotate | Download | only in core 
      1 # Copyright (C) 2009 The Android Open Source Project
      2 #
      3 # Licensed under the Apache License, Version 2.0 (the "License");
      4 # you may not use this file except in compliance with the License.
      5 # You may obtain a copy of the License at
      6 #
      7 #      http://www.apache.org/licenses/LICENSE-2.0
      8 #
      9 # Unless required by applicable law or agreed to in writing, software
     10 # distributed under the License is distributed on an "AS IS" BASIS,
     11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     12 # See the License for the specific language governing permissions and
     13 # limitations under the License.
     14 #
     15 
     16 # this file is included repeatedly from build/core/setup-abi.mk and is used
     17 # to setup the target toolchain for a given platform/abi combination.
     18 #
     19 
     20 $(call assert-defined,TARGET_PLATFORM TARGET_ARCH TARGET_ARCH_ABI)
     21 $(call assert-defined,NDK_APPS NDK_APP_STL)
     22 
     23 LLVM_VERSION_LIST := 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4
     24 NDK_64BIT_TOOLCHAIN_LIST := clang3.4 4.9
     25 
     26 # Check that we have a toolchain that supports the current ABI.
     27 # NOTE: If NDK_TOOLCHAIN is defined, we're going to use it.
     28 #
     29 ifndef NDK_TOOLCHAIN
     30     TARGET_TOOLCHAIN_LIST := $(strip $(sort $(NDK_ABI.$(TARGET_ARCH_ABI).toolchains)))
     31 
     32     # Filter out the Clang toolchain, so that we can keep GCC as the default
     33     # toolchain.
     34     $(foreach _ver,$(LLVM_VERSION_LIST), \
     35         $(eval TARGET_TOOLCHAIN_LIST := \
     36             $(filter-out %-clang$(_ver),$(TARGET_TOOLCHAIN_LIST))))
     37 
     38     ifeq (,$(findstring 64,$(TARGET_ARCH_ABI)))
     39       # Filter out 4.7, 4.8 and 4.9 which are newer than the defaultat this moment
     40       TARGET_TOOLCHAIN_LIST := $(filter-out %4.7 %4.8 %4.8l %4.9 %4.9l,$(TARGET_TOOLCHAIN_LIST))
     41     else
     42       # Filter out 4.6, 4.7 and 4.8 which don't have good 64-bit support in all supported arch
     43       TARGET_TOOLCHAIN_LIST := $(filter-out %4.6 %4.7 %4.8 %4.8l,$(TARGET_TOOLCHAIN_LIST))
     44     endif
     45 
     46     ifndef TARGET_TOOLCHAIN_LIST
     47         $(call __ndk_info,There is no toolchain that supports the $(TARGET_ARCH_ABI) ABI.)
     48         $(call __ndk_info,Please modify the APP_ABI definition in $(NDK_APP_APPLICATION_MK) to use)
     49         $(call __ndk_info,a set of the following values: $(NDK_ALL_ABIS))
     50         $(call __ndk_error,Aborting)
     51     endif
     52     # Select the last toolchain from the sorted list.
     53     # For now, this is enough to select by default gcc4.6 for 32-bit, and 4.9 for 64-bit, the the
     54     # latest llvm if no gcc
     55     ifneq (,$(filter-out llvm-%,$(TARGET_TOOLCHAIN_LIST)))
     56         TARGET_TOOLCHAIN := $(firstword $(TARGET_TOOLCHAIN_LIST))
     57     else
     58         TARGET_TOOLCHAIN := $(lastword $(TARGET_TOOLCHAIN_LIST))
     59     endif
     60     # If NDK_TOOLCHAIN_VERSION is defined, we replace the toolchain version
     61     # suffix with it.
     62     #
     63     ifdef NDK_TOOLCHAIN_VERSION
     64         # Replace "clang" with the most recent verion
     65         ifeq ($(NDK_TOOLCHAIN_VERSION),clang)
     66             override NDK_TOOLCHAIN_VERSION := clang$(lastword $(LLVM_VERSION_LIST))
     67         endif
     68         __use_ndk_toolchain_version := true
     69         ifneq (,$(findstring 64,$(TARGET_ARCH_ABI)))
     70             # don't allow NDK_TOOLCHAIN_VERSION to change if it doesn't support 64-bit
     71             ifeq (,$(filter $(NDK_64BIT_TOOLCHAIN_LIST),$(NDK_TOOLCHAIN_VERSION)))
     72                 $(call ndk_log,Specified NDK_TOOLCHAIN_VERSION $(NDK_TOOLCHAIN_VERSION) does not support 64-bit)
     73                 $(call ndk_log,Using default target toolchain '$(TARGET_TOOLCHAIN)' for '$(TARGET_ARCH_ABI)' ABI)
     74                 __use_ndk_toolchain_version := false;
     75             endif
     76         endif
     77         ifeq ($(__use_ndk_toolchain_version),true)
     78             # We assume the toolchain name uses dashes (-) as separators and doesn't
     79             # contain any space. The following is a bit subtle, but essentially
     80             # does the following:
     81             #
     82             #   1/ Use 'subst' to convert dashes into spaces, this generates a list
     83             #   2/ Use 'chop' to remove the last element of the list
     84             #   3/ Use 'subst' again to convert the spaces back into dashes
     85             #
     86             # So it TARGET_TOOLCHAIN is 'foo-bar-zoo-xxx', then
     87             # TARGET_TOOLCHAIN_BASE will be 'foo-bar-zoo'
     88             #
     89             TARGET_TOOLCHAIN_BASE := $(subst $(space),-,$(call chop,$(subst -,$(space),$(TARGET_TOOLCHAIN))))
     90             # if TARGET_TOOLCHAIN_BASE is llvm, remove clang from NDK_TOOLCHAIN_VERSION
     91             VERSION := $(NDK_TOOLCHAIN_VERSION)
     92             ifeq ($(TARGET_TOOLCHAIN_BASE),llvm)
     93                 VERSION := $(subst clang,,$(NDK_TOOLCHAIN_VERSION))
     94             endif
     95             TARGET_TOOLCHAIN := $(TARGET_TOOLCHAIN_BASE)-$(VERSION)
     96             $(call ndk_log,Using target toolchain '$(TARGET_TOOLCHAIN)' for '$(TARGET_ARCH_ABI)' ABI (through NDK_TOOLCHAIN_VERSION))
     97         endif
     98     else
     99         $(call ndk_log,Using target toolchain '$(TARGET_TOOLCHAIN)' for '$(TARGET_ARCH_ABI)' ABI)
    100     endif
    101 else # NDK_TOOLCHAIN is not empty
    102     TARGET_TOOLCHAIN_LIST := $(strip $(filter $(NDK_TOOLCHAIN),$(NDK_ABI.$(TARGET_ARCH_ABI).toolchains)))
    103     ifndef TARGET_TOOLCHAIN_LIST
    104         $(call __ndk_info,The selected toolchain ($(NDK_TOOLCHAIN)) does not support the $(TARGET_ARCH_ABI) ABI.)
    105         $(call __ndk_info,Please modify the APP_ABI definition in $(NDK_APP_APPLICATION_MK) to use)
    106         $(call __ndk_info,a set of the following values: $(NDK_TOOLCHAIN.$(NDK_TOOLCHAIN).abis))
    107         $(call __ndk_info,Or change your NDK_TOOLCHAIN definition.)
    108         $(call __ndk_error,Aborting)
    109     endif
    110     TARGET_TOOLCHAIN := $(NDK_TOOLCHAIN)
    111 endif # NDK_TOOLCHAIN is not empty
    112 
    113 TARGET_ABI := $(TARGET_PLATFORM)-$(TARGET_ARCH_ABI)
    114 
    115 # setup sysroot variable.
    116 # SYSROOT_INC points to a directory that contains all public header
    117 # files for a given platform, and
    118 # SYSROOT_LIB points to libraries and object files used for linking
    119 # the generated target files properly.
    120 #
    121 SYSROOT_INC := $(NDK_PLATFORMS_ROOT)/$(TARGET_PLATFORM)/arch-$(TARGET_ARCH)
    122 SYSROOT_LINK := $(SYSROOT_INC)
    123 
    124 TARGET_PREBUILT_SHARED_LIBRARIES :=
    125 
    126 # Define default values for TOOLCHAIN_NAME, this can be overriden in
    127 # the setup file.
    128 TOOLCHAIN_NAME   := $(TARGET_TOOLCHAIN)
    129 TOOLCHAIN_VERSION := $(call last,$(subst -,$(space),$(TARGET_TOOLCHAIN)))
    130 
    131 # Define the root path of the toolchain in the NDK tree.
    132 TOOLCHAIN_ROOT   := $(NDK_ROOT)/toolchains/$(TOOLCHAIN_NAME)
    133 
    134 # Define the root path where toolchain prebuilts are stored
    135 TOOLCHAIN_PREBUILT_ROOT := $(call host-prebuilt-tag,$(TOOLCHAIN_ROOT))
    136 
    137 # Do the same for TOOLCHAIN_PREFIX. Note that we must chop the version
    138 # number from the toolchain name, e.g. arm-eabi-4.4.0 -> path/bin/arm-eabi-
    139 # to do that, we split at dashes, remove the last element, then merge the
    140 # result. Finally, add the complete path prefix.
    141 #
    142 TOOLCHAIN_PREFIX := $(call merge,-,$(call chop,$(call split,-,$(TOOLCHAIN_NAME))))-
    143 TOOLCHAIN_PREFIX := $(TOOLCHAIN_PREBUILT_ROOT)/bin/$(TOOLCHAIN_PREFIX)
    144 
    145 # We expect the gdbserver binary for this toolchain to be located at its root.
    146 TARGET_GDBSERVER := $(NDK_ROOT)/prebuilt/android-$(TARGET_ARCH)/gdbserver/gdbserver
    147 
    148 # compute NDK_APP_DST_DIR as the destination directory for the generated files
    149 NDK_APP_DST_DIR := $(NDK_APP_LIBS_OUT)/$(TARGET_ARCH_ABI)
    150 # install armeabi-v7a-hard to lib/armeabi-v7a, unless under testing where env. var. _NDK_TESTING_ALL_
    151 # is set to one of yes, all, all32, or all64
    152 ifeq (,$(filter yes all all32 all64,$(_NDK_TESTING_ALL_)))
    153 ifeq ($(TARGET_ARCH_ABI),armeabi-v7a-hard)
    154 NDK_APP_DST_DIR := $(NDK_APP_LIBS_OUT)/armeabi-v7a
    155 endif
    156 endif
    157 
    158 # Default build commands, can be overriden by the toolchain's setup script
    159 include $(BUILD_SYSTEM)/default-build-commands.mk
    160 
    161 # now call the toolchain-specific setup script
    162 include $(NDK_TOOLCHAIN.$(TARGET_TOOLCHAIN).setup)
    163 
    164 clean-installed-binaries::
    165 
    166 # Ensure that for debuggable applications, gdbserver will be copied to
    167 # the proper location
    168 
    169 NDK_APP_GDBSERVER := $(NDK_APP_DST_DIR)/gdbserver
    170 NDK_APP_GDBSETUP := $(NDK_APP_DST_DIR)/gdb.setup
    171 
    172 ifeq ($(NDK_APP_DEBUGGABLE),true)
    173 ifeq ($(TARGET_SONAME_EXTENSION),.so)
    174 
    175 installed_modules: $(NDK_APP_GDBSERVER)
    176 
    177 $(NDK_APP_GDBSERVER): PRIVATE_ABI     := $(TARGET_ARCH_ABI)
    178 $(NDK_APP_GDBSERVER): PRIVATE_NAME    := $(TOOLCHAIN_NAME)
    179 $(NDK_APP_GDBSERVER): PRIVATE_SRC     := $(TARGET_GDBSERVER)
    180 $(NDK_APP_GDBSERVER): PRIVATE_DST     := $(NDK_APP_GDBSERVER)
    181 
    182 $(call generate-file-dir,$(NDK_APP_GDBSERVER))
    183 
    184 $(NDK_APP_GDBSERVER): clean-installed-binaries
    185 	$(call host-echo-build-step,$(PRIVATE_ABI),Gdbserver) "[$(PRIVATE_NAME)] $(call pretty-dir,$(PRIVATE_DST))"
    186 	$(hide) $(call host-install,$(PRIVATE_SRC),$(PRIVATE_DST))
    187 endif
    188 
    189 # Install gdb.setup for both .so and .bc projects
    190 ifneq (,$(filter $(TARGET_SONAME_EXTENSION),.so .bc))
    191 installed_modules: $(NDK_APP_GDBSETUP)
    192 
    193 $(NDK_APP_GDBSETUP): PRIVATE_ABI := $(TARGET_ARCH_ABI)
    194 $(NDK_APP_GDBSETUP): PRIVATE_DST := $(NDK_APP_GDBSETUP)
    195 $(NDK_APP_GDBSETUP): PRIVATE_SOLIB_PATH := $(TARGET_OUT)
    196 $(NDK_APP_GDBSETUP): PRIVATE_SRC_DIRS := $(SYSROOT_INC)/usr/include
    197 
    198 $(NDK_APP_GDBSETUP):
    199 	$(call host-echo-build-step,$(PRIVATE_ABI),Gdbsetup) "$(call pretty-dir,$(PRIVATE_DST))"
    200 	$(hide) $(HOST_ECHO) "set solib-search-path $(call host-path,$(PRIVATE_SOLIB_PATH))" > $(PRIVATE_DST)
    201 	$(hide) $(HOST_ECHO) "directory $(call host-path,$(call remove-duplicates,$(PRIVATE_SRC_DIRS)))" >> $(PRIVATE_DST)
    202 
    203 $(call generate-file-dir,$(NDK_APP_GDBSETUP))
    204 
    205 # This prevents parallel execution to clear gdb.setup after it has been written to
    206 $(NDK_APP_GDBSETUP): clean-installed-binaries
    207 endif
    208 endif
    209 
    210 # free the dictionary of LOCAL_MODULE definitions
    211 $(call modules-clear)
    212 
    213 $(call ndk-stl-select,$(NDK_APP_STL))
    214 
    215 # now parse the Android.mk for the application, this records all
    216 # module declarations, but does not populate the dependency graph yet.
    217 include $(NDK_APP_BUILD_SCRIPT)
    218 
    219 $(call ndk-stl-add-dependencies,$(NDK_APP_STL))
    220 
    221 # recompute all dependencies between modules
    222 $(call modules-compute-dependencies)
    223 
    224 # for debugging purpose
    225 ifdef NDK_DEBUG_MODULES
    226 $(call modules-dump-database)
    227 endif
    228 
    229 # now, really build the modules, the second pass allows one to deal
    230 # with exported values
    231 $(foreach __pass2_module,$(__ndk_modules),\
    232     $(eval LOCAL_MODULE := $(__pass2_module))\
    233     $(eval include $(BUILD_SYSTEM)/build-binary.mk)\
    234 )
    235 
    236 # Now compute the closure of all module dependencies.
    237 #
    238 # If APP_MODULES is not defined in the Application.mk, we
    239 # will build all modules that were listed from the top-level Android.mk
    240 # and the installable imported ones they depend on
    241 #
    242 ifeq ($(strip $(NDK_APP_MODULES)),)
    243     WANTED_MODULES := $(call modules-get-all-installable,$(modules-get-top-list))
    244     ifeq (,$(strip $(WANTED_MODULES)))
    245         WANTED_MODULES := $(modules-get-top-list)
    246         $(call ndk_log,[$(TARGET_ARCH_ABI)] No installable modules in project - forcing static library build)
    247     endif
    248 else
    249     WANTED_MODULES := $(call module-get-all-dependencies,$(NDK_APP_MODULES))
    250 endif
    251 
    252 $(call ndk_log,[$(TARGET_ARCH_ABI)] Modules to build: $(WANTED_MODULES))
    253 
    254 WANTED_INSTALLED_MODULES += $(call map,module-get-installed,$(WANTED_MODULES))
    255