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
     24 
     25 # Check that we have a toolchain that supports the current ABI.
     26 # NOTE: If NDK_TOOLCHAIN is defined, we're going to use it.
     27 #
     28 ifndef NDK_TOOLCHAIN
     29     TARGET_TOOLCHAIN_LIST := $(strip $(sort $(NDK_ABI.$(TARGET_ARCH_ABI).toolchains)))
     30 
     31     # Filter out the Clang toolchain, so that we can keep GCC as the default
     32     # toolchain.
     33     $(foreach _ver,$(LLVM_VERSION_LIST), \
     34         $(eval TARGET_TOOLCHAIN_LIST := \
     35             $(filter-out %-clang$(_ver),$(TARGET_TOOLCHAIN_LIST))))
     36     # Filter out 4.7 which is considered experimental at this moment
     37     TARGET_TOOLCHAIN_LIST := $(filter-out %4.7,$(TARGET_TOOLCHAIN_LIST))
     38 
     39     ifndef TARGET_TOOLCHAIN_LIST
     40         $(call __ndk_info,There is no toolchain that supports the $(TARGET_ARCH_ABI) ABI.)
     41         $(call __ndk_info,Please modify the APP_ABI definition in $(NDK_APP_APPLICATION_MK) to use)
     42         $(call __ndk_info,a set of the following values: $(NDK_ALL_ABIS))
     43         $(call __ndk_error,Aborting)
     44     endif
     45     # Select the last toolchain from the sorted list.
     46     # For now, this is enough to select armeabi-4.6 by default for ARM
     47     TARGET_TOOLCHAIN := $(lastword $(TARGET_TOOLCHAIN_LIST))
     48 
     49     # If NDK_TOOLCHAIN_VERSION is defined, we replace the toolchain version
     50     # suffix with it.
     51     #
     52     ifdef NDK_TOOLCHAIN_VERSION
     53         # Replace "clang" with the most recent verion
     54         ifeq ($(NDK_TOOLCHAIN_VERSION),clang)
     55             override NDK_TOOLCHAIN_VERSION := clang$(lastword $(LLVM_VERSION_LIST))
     56         endif
     57         # We assume the toolchain name uses dashes (-) as separators and doesn't
     58         # contain any space. The following is a bit subtle, but essentially
     59         # does the following:
     60         #
     61         #   1/ Use 'subst' to convert dashes into spaces, this generates a list
     62         #   2/ Use 'chop' to remove the last element of the list
     63         #   3/ Use 'subst' again to convert the spaces back into dashes
     64         #
     65         # So it TARGET_TOOLCHAIN is 'foo-bar-zoo-xxx', then
     66         # TARGET_TOOLCHAIN_BASE will be 'foo-bar-zoo'
     67         #
     68         TARGET_TOOLCHAIN_BASE := $(subst $(space),-,$(call chop,$(subst -,$(space),$(TARGET_TOOLCHAIN))))
     69         # if TARGET_TOOLCHAIN_BASE is llvm, remove clang from NDK_TOOLCHAIN_VERSION
     70         VERSION := $(NDK_TOOLCHAIN_VERSION)
     71         ifeq ($(TARGET_TOOLCHAIN_BASE),llvm)
     72             VERSION := $(subst clang,,$(NDK_TOOLCHAIN_VERSION))
     73         endif
     74         TARGET_TOOLCHAIN := $(TARGET_TOOLCHAIN_BASE)-$(VERSION)
     75         $(call ndk_log,Using target toolchain '$(TARGET_TOOLCHAIN)' for '$(TARGET_ARCH_ABI)' ABI (through NDK_TOOLCHAIN_VERSION))
     76     else
     77         $(call ndk_log,Using target toolchain '$(TARGET_TOOLCHAIN)' for '$(TARGET_ARCH_ABI)' ABI)
     78     endif
     79 else # NDK_TOOLCHAIN is not empty
     80     TARGET_TOOLCHAIN_LIST := $(strip $(filter $(NDK_TOOLCHAIN),$(NDK_ABI.$(TARGET_ARCH_ABI).toolchains)))
     81     ifndef TARGET_TOOLCHAIN_LIST
     82         $(call __ndk_info,The selected toolchain ($(NDK_TOOLCHAIN)) does not support the $(TARGET_ARCH_ABI) ABI.)
     83         $(call __ndk_info,Please modify the APP_ABI definition in $(NDK_APP_APPLICATION_MK) to use)
     84         $(call __ndk_info,a set of the following values: $(NDK_TOOLCHAIN.$(NDK_TOOLCHAIN).abis))
     85         $(call __ndk_info,Or change your NDK_TOOLCHAIN definition.)
     86         $(call __ndk_error,Aborting)
     87     endif
     88     TARGET_TOOLCHAIN := $(NDK_TOOLCHAIN)
     89 endif # NDK_TOOLCHAIN is not empty
     90 
     91 TARGET_ABI := $(TARGET_PLATFORM)-$(TARGET_ARCH_ABI)
     92 
     93 # setup sysroot variable.
     94 # SYSROOT_INC points to a directory that contains all public header
     95 # files for a given platform, and
     96 # SYSROOT_LIB points to libraries and object files used for linking
     97 # the generated target files properly.
     98 #
     99 SYSROOT_INC := $(NDK_PLATFORMS_ROOT)/$(TARGET_PLATFORM)/arch-$(TARGET_ARCH)
    100 SYSROOT_LINK := $(SYSROOT_INC)
    101 
    102 TARGET_PREBUILT_SHARED_LIBRARIES :=
    103 
    104 # Define default values for TOOLCHAIN_NAME, this can be overriden in
    105 # the setup file.
    106 TOOLCHAIN_NAME   := $(TARGET_TOOLCHAIN)
    107 TOOLCHAIN_VERSION := $(call last,$(subst -,$(space),$(TARGET_TOOLCHAIN)))
    108 
    109 # Define the root path of the toolchain in the NDK tree.
    110 TOOLCHAIN_ROOT   := $(NDK_ROOT)/toolchains/$(TOOLCHAIN_NAME)
    111 
    112 # Define the root path where toolchain prebuilts are stored
    113 TOOLCHAIN_PREBUILT_ROOT := $(call host-prebuilt-tag,$(TOOLCHAIN_ROOT))
    114 
    115 # Do the same for TOOLCHAIN_PREFIX. Note that we must chop the version
    116 # number from the toolchain name, e.g. arm-eabi-4.4.0 -> path/bin/arm-eabi-
    117 # to do that, we split at dashes, remove the last element, then merge the
    118 # result. Finally, add the complete path prefix.
    119 #
    120 TOOLCHAIN_PREFIX := $(call merge,-,$(call chop,$(call split,-,$(TOOLCHAIN_NAME))))-
    121 TOOLCHAIN_PREFIX := $(TOOLCHAIN_PREBUILT_ROOT)/bin/$(TOOLCHAIN_PREFIX)
    122 
    123 # We expect the gdbserver binary for this toolchain to be located at its root.
    124 TARGET_GDBSERVER := $(NDK_ROOT)/prebuilt/android-$(TARGET_ARCH)/gdbserver/gdbserver
    125 
    126 # compute NDK_APP_DST_DIR as the destination directory for the generated files
    127 NDK_APP_DST_DIR := $(NDK_APP_PROJECT_PATH)/libs/$(TARGET_ARCH_ABI)
    128 
    129 # Default build commands, can be overriden by the toolchain's setup script
    130 include $(BUILD_SYSTEM)/default-build-commands.mk
    131 
    132 # now call the toolchain-specific setup script
    133 include $(NDK_TOOLCHAIN.$(TARGET_TOOLCHAIN).setup)
    134 
    135 clean-installed-binaries::
    136 
    137 # Ensure that for debuggable applications, gdbserver will be copied to
    138 # the proper location
    139 
    140 NDK_APP_GDBSERVER := $(NDK_APP_DST_DIR)/gdbserver
    141 NDK_APP_GDBSETUP := $(NDK_APP_DST_DIR)/gdb.setup
    142 
    143 ifeq ($(NDK_APP_DEBUGGABLE),true)
    144 ifeq ($(TARGET_SONAME_EXTENSION),.so)
    145 
    146 installed_modules: $(NDK_APP_GDBSERVER)
    147 
    148 $(NDK_APP_GDBSERVER): PRIVATE_NAME    := $(TOOLCHAIN_NAME)
    149 $(NDK_APP_GDBSERVER): PRIVATE_SRC     := $(TARGET_GDBSERVER)
    150 $(NDK_APP_GDBSERVER): PRIVATE_DST     := $(NDK_APP_GDBSERVER)
    151 
    152 $(call generate-file-dir,$(NDK_APP_GDBSERVER))
    153 
    154 $(NDK_APP_GDBSERVER): clean-installed-binaries
    155 	@ $(HOST_ECHO) "Gdbserver      : [$(PRIVATE_NAME)] $(call pretty-dir,$(PRIVATE_DST))"
    156 	$(hide) $(call host-install,$(PRIVATE_SRC),$(PRIVATE_DST))
    157 
    158 installed_modules: $(NDK_APP_GDBSETUP)
    159 
    160 $(NDK_APP_GDBSETUP): PRIVATE_DST := $(NDK_APP_GDBSETUP)
    161 $(NDK_APP_GDBSETUP): PRIVATE_SOLIB_PATH := $(TARGET_OUT)
    162 $(NDK_APP_GDBSETUP): PRIVATE_SRC_DIRS := $(SYSROOT_INC)/usr/include
    163 
    164 $(NDK_APP_GDBSETUP):
    165 	@ $(HOST_ECHO) "Gdbsetup       : $(call pretty-dir,$(PRIVATE_DST))"
    166 	$(hide) $(HOST_ECHO) "set solib-search-path $(call host-path,$(PRIVATE_SOLIB_PATH))" > $(PRIVATE_DST)
    167 	$(hide) $(HOST_ECHO) "directory $(call host-path,$(call remove-duplicates,$(PRIVATE_SRC_DIRS)))" >> $(PRIVATE_DST)
    168 
    169 $(call generate-file-dir,$(NDK_APP_GDBSETUP))
    170 
    171 # This prevents parallel execution to clear gdb.setup after it has been written to
    172 $(NDK_APP_GDBSETUP): clean-installed-binaries
    173 endif
    174 endif
    175 
    176 # free the dictionary of LOCAL_MODULE definitions
    177 $(call modules-clear)
    178 
    179 $(call ndk-stl-select,$(NDK_APP_STL))
    180 
    181 # now parse the Android.mk for the application, this records all
    182 # module declarations, but does not populate the dependency graph yet.
    183 include $(NDK_APP_BUILD_SCRIPT)
    184 
    185 $(call ndk-stl-add-dependencies,$(NDK_APP_STL))
    186 
    187 # recompute all dependencies between modules
    188 $(call modules-compute-dependencies)
    189 
    190 # for debugging purpose
    191 ifdef NDK_DEBUG_MODULES
    192 $(call modules-dump-database)
    193 endif
    194 
    195 # now, really build the modules, the second pass allows one to deal
    196 # with exported values
    197 $(foreach __pass2_module,$(__ndk_modules),\
    198     $(eval LOCAL_MODULE := $(__pass2_module))\
    199     $(eval include $(BUILD_SYSTEM)/build-binary.mk)\
    200 )
    201 
    202 # Now compute the closure of all module dependencies.
    203 #
    204 # If APP_MODULES is not defined in the Application.mk, we
    205 # will build all modules that were listed from the top-level Android.mk
    206 # and the installable imported ones they depend on
    207 #
    208 ifeq ($(strip $(NDK_APP_MODULES)),)
    209     WANTED_MODULES := $(call modules-get-all-installable,$(modules-get-top-list))
    210 else
    211     WANTED_MODULES := $(call module-get-all-dependencies,$(NDK_APP_MODULES))
    212 endif
    213 
    214 WANTED_INSTALLED_MODULES += $(call map,module-get-installed,$(WANTED_MODULES))
    215