toolchain/toolchain-external/toolchain-external.mk

   1 ################################################################################
   2 #
   3 # toolchain-external
   4 #
   5 ################################################################################
   6
   7 #
   8 # This package implements the support for external toolchains, i.e
   9 # toolchains that have not been produced by Buildroot itself and that
  10 # Buildroot can download from the Web or that are already available on
  11 # the system on which Buildroot runs. So far, we have tested this
  12 # with:
  13 #
  14 #  * Toolchains generated by Crosstool-NG
  15 #  * Toolchains generated by Buildroot
  16 #  * Toolchains provided by Linaro for the ARM and AArch64
  17 #    architectures
  18 #  * Sourcery CodeBench toolchains (from Mentor Graphics) for the ARM,
  19 #    MIPS, PowerPC, x86, x86_64 and NIOS 2 architectures. For the MIPS
  20 #    toolchain, the -muclibc variant isn't supported yet, only the
  21 #    default glibc-based variant is.
  22 #  * Analog Devices toolchains for the Blackfin architecture
  23 #  * Xilinx toolchains for the Microblaze architecture
  24 #
  25 # The basic principle is the following
  26 #
  27 #  1. If the toolchain is not pre-installed, download and extract it
  28 #  in $(TOOLCHAIN_EXTERNAL_INSTALL_DIR). Otherwise,
  29 #  $(TOOLCHAIN_EXTERNAL_INSTALL_DIR) points to were the toolchain has
  30 #  already been installed by the user.
  31 #
  32 #  2. For all external toolchains, perform some checks on the
  33 #  conformity between the toolchain configuration described in the
  34 #  Buildroot menuconfig system, and the real configuration of the
  35 #  external toolchain. This is for example important to make sure that
  36 #  the Buildroot configuration system knows whether the toolchain
  37 #  supports RPC, IPv6, locales, large files, etc. Unfortunately, these
  38 #  things cannot be detected automatically, since the value of these
  39 #  options (such as BR2_TOOLCHAIN_HAS_NATIVE_RPC) are needed at
  40 #  configuration time because these options are used as dependencies
  41 #  for other options. And at configuration time, we are not able to
  42 #  retrieve the external toolchain configuration.
  43 #
  44 #  3. Copy the libraries needed at runtime to the target directory,
  45 #  $(TARGET_DIR). Obviously, things such as the C library, the dynamic
  46 #  loader and a few other utility libraries are needed if dynamic
  47 #  applications are to be executed on the target system.
  48 #
  49 #  4. Copy the libraries and headers to the staging directory. This
  50 #  will allow all further calls to gcc to be made using --sysroot
  51 #  $(STAGING_DIR), which greatly simplifies the compilation of the
  52 #  packages when using external toolchains. So in the end, only the
  53 #  cross-compiler binaries remains external, all libraries and headers
  54 #  are imported into the Buildroot tree.
  55 #
  56 #  5. Build a toolchain wrapper which executes the external toolchain
  57 #  with a number of arguments (sysroot/march/mtune/..) hardcoded,
  58 #  so we're sure the correct configuration is always used and the
  59 #  toolchain behaves similar to an internal toolchain.
  60 #  This toolchain wrapper and symlinks are installed into
  61 #  $(HOST_DIR)/usr/bin like for the internal toolchains, and the rest
  62 #  of Buildroot is handled identical for the 2 toolchain types.
  63
  64 ifeq ($(BR2_TOOLCHAIN_EXTERNAL_GLIBC)$(BR2_TOOLCHAIN_EXTERNAL_UCLIBC),y)
  65 LIB_EXTERNAL_LIBS += libc.so.* libcrypt.so.* libdl.so.* libgcc_s.so.* libm.so.* libnsl.so.* libresolv.so.* librt.so.* libutil.so.*
  66 ifeq ($(BR2_TOOLCHAIN_EXTERNAL_GLIBC)$(BR2_ARM_EABIHF),yy)
  67 LIB_EXTERNAL_LIBS += ld-linux-armhf.so.*
  68 else
  69 LIB_EXTERNAL_LIBS += ld*.so.*
  70 endif
  71 ifeq ($(BR2_TOOLCHAIN_HAS_THREADS),y)
  72 LIB_EXTERNAL_LIBS += libpthread.so.*
  73 ifneq ($(BR2_PACKAGE_GDB)$(BR2_TOOLCHAIN_EXTERNAL_GDB_SERVER_COPY),)
  74 LIB_EXTERNAL_LIBS += libthread_db.so.*
  75 endif # gdbserver
  76 endif # ! no threads
  77 endif
  78
  79 ifeq ($(BR2_TOOLCHAIN_EXTERNAL_GLIBC),y)
  80 LIB_EXTERNAL_LIBS += libnss_files.so.* libnss_dns.so.*
  81 endif
  82
  83 ifeq ($(BR2_TOOLCHAIN_EXTERNAL_MUSL),y)
  84 LIB_EXTERNAL_LIBS += libc.so libgcc_s.so.*
  85 endif
  86
  87 ifeq ($(BR2_INSTALL_LIBSTDCPP),y)
  88 USR_LIB_EXTERNAL_LIBS += libstdc++.so.*
  89 endif
  90
  91 LIB_EXTERNAL_LIBS += $(call qstrip,$(BR2_TOOLCHAIN_EXTRA_EXTERNAL_LIBS))
  92
  93 # Details about sysroot directory selection.
  94 #
  95 # To find the sysroot directory, we use the trick of looking for the
  96 # 'libc.a' file with the -print-file-name gcc option, and then
  97 # mangling the path to find the base directory of the sysroot.
  98 #
  99 # Note that we do not use the -print-sysroot option, because it is
 100 # only available since gcc 4.4.x, and we still support 4.2.x (for
 101 # AVR32) and 4.3.x.
 102 #
 103 # When doing this, we don't pass any option to gcc that could select a
 104 # multilib variant (such as -march) as we want the "main" sysroot,
 105 # which contains all variants of the C library in the case of multilib
 106 # toolchains. We use the TARGET_CC_NO_SYSROOT variable, which is the
 107 # path of the cross-compiler, without the --sysroot=$(STAGING_DIR),
 108 # since what we want to find is the location of the original toolchain
 109 # sysroot. This "main" sysroot directory is stored in SYSROOT_DIR.
 110 #
 111 # Then, multilib toolchains are a little bit more complicated, since
 112 # they in fact have multiple sysroots, one for each variant supported
 113 # by the toolchain. So we need to find the particular sysroot we're
 114 # interested in.
 115 #
 116 # To do so, we ask the compiler where its sysroot is by passing all
 117 # flags (including -march and al.), except the --sysroot flag since we
 118 # want to the compiler to tell us where its original sysroot
 119 # is. ARCH_SUBDIR will contain the subdirectory, in the main
 120 # SYSROOT_DIR, that corresponds to the selected architecture
 121 # variant. ARCH_SYSROOT_DIR will contain the full path to this
 122 # location.
 123 #
 124 # One might wonder why we don't just bother with ARCH_SYSROOT_DIR. The
 125 # fact is that in multilib toolchains, the header files are often only
 126 # present in the main sysroot, and only the libraries are available in
 127 # each variant-specific sysroot directory.
 128
 129
 130 TOOLCHAIN_EXTERNAL_PREFIX = $(call qstrip,$(BR2_TOOLCHAIN_EXTERNAL_PREFIX))
 131 ifeq ($(BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD),y)
 132 TOOLCHAIN_EXTERNAL_INSTALL_DIR = $(HOST_DIR)/opt/ext-toolchain
 133 else
 134 TOOLCHAIN_EXTERNAL_INSTALL_DIR = $(call qstrip,$(BR2_TOOLCHAIN_EXTERNAL_PATH))
 135 endif
 136
 137 ifeq ($(TOOLCHAIN_EXTERNAL_INSTALL_DIR),)
 138 ifneq ($(TOOLCHAIN_EXTERNAL_PREFIX),)
 139 # if no path set, figure it out from path
 140 TOOLCHAIN_EXTERNAL_BIN := $(shell dirname $(shell which $(TOOLCHAIN_EXTERNAL_PREFIX)-gcc))
 141 endif
 142 else
 143 ifeq ($(BR2_bfin),y)
 144 TOOLCHAIN_EXTERNAL_BIN := $(TOOLCHAIN_EXTERNAL_INSTALL_DIR)/$(TOOLCHAIN_EXTERNAL_PREFIX)/bin
 145 else
 146 TOOLCHAIN_EXTERNAL_BIN := $(TOOLCHAIN_EXTERNAL_INSTALL_DIR)/bin
 147 endif
 148 endif
 149
 150 TOOLCHAIN_EXTERNAL_CROSS = $(TOOLCHAIN_EXTERNAL_BIN)/$(TOOLCHAIN_EXTERNAL_PREFIX)-
 151 TOOLCHAIN_EXTERNAL_CC = $(TOOLCHAIN_EXTERNAL_CROSS)gcc
 152 TOOLCHAIN_EXTERNAL_CXX = $(TOOLCHAIN_EXTERNAL_CROSS)g++
 153 TOOLCHAIN_EXTERNAL_READELF = $(TOOLCHAIN_EXTERNAL_CROSS)readelf
 154 TOOLCHAIN_EXTERNAL_WRAPPER_ARGS = -DBR_SYSROOT='"$(STAGING_SUBDIR)"'
 155
 156 ifeq ($(filter $(HOST_DIR)/%,$(TOOLCHAIN_EXTERNAL_BIN)),)
 157 # TOOLCHAIN_EXTERNAL_BIN points outside HOST_DIR => absolute path
 158 TOOLCHAIN_EXTERNAL_WRAPPER_ARGS += \
 159         -DBR_CROSS_PATH_ABS='"$(TOOLCHAIN_EXTERNAL_BIN)"'
 160 else
 161 # TOOLCHAIN_EXTERNAL_BIN points inside HOST_DIR => relative path
 162 TOOLCHAIN_EXTERNAL_WRAPPER_ARGS += \
 163         -DBR_CROSS_PATH_REL='"$(TOOLCHAIN_EXTERNAL_BIN:$(HOST_DIR)/%=%)"'
 164 endif
 165
 166 CC_TARGET_TUNE_ := $(call qstrip,$(BR2_GCC_TARGET_TUNE))
 167 ifeq ($(call qstrip,$(BR2_GCC_TARGET_CPU_REVISION)),)
 168 CC_TARGET_CPU_ := $(call qstrip,$(BR2_GCC_TARGET_CPU))
 169 else
 170 CC_TARGET_CPU_ := $(call qstrip,$(BR2_GCC_TARGET_CPU)-$(BR2_GCC_TARGET_CPU_REVISION))
 171 endif
 172 CC_TARGET_ARCH_ := $(call qstrip,$(BR2_GCC_TARGET_ARCH))
 173 CC_TARGET_ABI_ := $(call qstrip,$(BR2_GCC_TARGET_ABI))
 174 CC_TARGET_FPU_ := $(call qstrip,$(BR2_GCC_TARGET_FPU))
 175 CC_TARGET_FLOAT_ABI_ := $(call qstrip,$(BR2_GCC_TARGET_FLOAT_ABI))
 176 CC_TARGET_MODE_ := $(call qstrip,$(BR2_GCC_TARGET_MODE))
 177
 178 # march/mtune/floating point mode needs to be passed to the external toolchain
 179 # to select the right multilib variant
 180 ifeq ($(BR2_x86_64),y)
 181 TOOLCHAIN_EXTERNAL_CFLAGS += -m64
 182 TOOLCHAIN_EXTERNAL_WRAPPER_ARGS += -DBR_64
 183 endif
 184 ifneq ($(CC_TARGET_TUNE_),)
 185 TOOLCHAIN_EXTERNAL_CFLAGS += -mtune=$(CC_TARGET_TUNE_)
 186 TOOLCHAIN_EXTERNAL_WRAPPER_ARGS += -DBR_TUNE='"$(CC_TARGET_TUNE_)"'
 187 endif
 188 ifneq ($(CC_TARGET_ARCH_),)
 189 TOOLCHAIN_EXTERNAL_CFLAGS += -march=$(CC_TARGET_ARCH_)
 190 TOOLCHAIN_EXTERNAL_WRAPPER_ARGS += -DBR_ARCH='"$(CC_TARGET_ARCH_)"'
 191 endif
 192 ifneq ($(CC_TARGET_CPU_),)
 193 TOOLCHAIN_EXTERNAL_CFLAGS += -mcpu=$(CC_TARGET_CPU_)
 194 TOOLCHAIN_EXTERNAL_WRAPPER_ARGS += -DBR_CPU='"$(CC_TARGET_CPU_)"'
 195 endif
 196 ifneq ($(CC_TARGET_ABI_),)
 197 TOOLCHAIN_EXTERNAL_CFLAGS += -mabi=$(CC_TARGET_ABI_)
 198 TOOLCHAIN_EXTERNAL_WRAPPER_ARGS += -DBR_ABI='"$(CC_TARGET_ABI_)"'
 199 endif
 200 ifneq ($(CC_TARGET_FPU_),)
 201 TOOLCHAIN_EXTERNAL_CFLAGS += -mfpu=$(CC_TARGET_FPU_)
 202 TOOLCHAIN_EXTERNAL_WRAPPER_ARGS += -DBR_FPU='"$(CC_TARGET_FPU_)"'
 203 endif
 204 ifneq ($(CC_TARGET_FLOAT_ABI_),)
 205 TOOLCHAIN_EXTERNAL_CFLAGS += -mfloat-abi=$(CC_TARGET_FLOAT_ABI_)
 206 TOOLCHAIN_EXTERNAL_WRAPPER_ARGS += -DBR_FLOAT_ABI='"$(CC_TARGET_FLOAT_ABI_)"'
 207 endif
 208 ifneq ($(CC_TARGET_MODE_),)
 209 TOOLCHAIN_EXTERNAL_CFLAGS += -m$(CC_TARGET_MODE_)
 210 TOOLCHAIN_EXTERNAL_WRAPPER_ARGS += -DBR_MODE='"$(CC_TARGET_MODE_)"'
 211 endif
 212 ifeq ($(BR2_BINFMT_FLAT),y)
 213 TOOLCHAIN_EXTERNAL_CFLAGS += -Wl,-elf2flt
 214 TOOLCHAIN_EXTERNAL_WRAPPER_ARGS += -DBR_BINFMT_FLAT
 215 endif
 216 ifeq ($(BR2_mipsel)$(BR2_mips64el),y)
 217 TOOLCHAIN_EXTERNAL_WRAPPER_ARGS += -DBR_MIPS_TARGET_LITTLE_ENDIAN
 218 TOOLCHAIN_EXTERNAL_CFLAGS += -EL
 219 endif
 220 ifeq ($(BR2_mips)$(BR2_mips64),y)
 221 TOOLCHAIN_EXTERNAL_WRAPPER_ARGS += -DBR_MIPS_TARGET_BIG_ENDIAN
 222 TOOLCHAIN_EXTERNAL_CFLAGS += -EB
 223 endif
 224 ifneq ($(BR2_TARGET_OPTIMIZATION),)
 225 TOOLCHAIN_EXTERNAL_CFLAGS += $(call qstrip,$(BR2_TARGET_OPTIMIZATION))
 226 # We create a list like '"-mfoo", "-mbar", "-mbarfoo"' so that each
 227 # flag is a separate argument when used in execv() by the external
 228 # toolchain wrapper.
 229 TOOLCHAIN_EXTERNAL_WRAPPER_ARGS += -DBR_ADDITIONAL_CFLAGS='$(foreach f,$(call qstrip,$(BR2_TARGET_OPTIMIZATION)),"$(f)",)'
 230 endif
 231
 232 ifeq ($(BR2_SOFT_FLOAT),y)
 233 TOOLCHAIN_EXTERNAL_CFLAGS += -msoft-float
 234 TOOLCHAIN_EXTERNAL_WRAPPER_ARGS += -DBR_SOFTFLOAT=1
 235 endif
 236
 237 # The Linaro ARMhf toolchain expects the libraries in
 238 # {/usr,}/lib/arm-linux-gnueabihf, but Buildroot copies them to
 239 # {/usr,}/lib, so we need to create a symbolic link.
 240 define TOOLCHAIN_EXTERNAL_LINARO_ARMHF_SYMLINK
 241         ln -sf . $(TARGET_DIR)/lib/arm-linux-gnueabihf
 242         ln -sf . $(TARGET_DIR)/usr/lib/arm-linux-gnueabihf
 243 endef
 244
 245 define TOOLCHAIN_EXTERNAL_LINARO_ARMEBHF_SYMLINK
 246         ln -sf . $(TARGET_DIR)/lib/armeb-linux-gnueabihf
 247         ln -sf . $(TARGET_DIR)/usr/lib/armeb-linux-gnueabihf
 248 endef
 249
 250 define TOOLCHAIN_EXTERNAL_LINARO_AARCH64_SYMLINK
 251         ln -sf . $(TARGET_DIR)/lib/aarch64-linux-gnu
 252         ln -sf . $(TARGET_DIR)/usr/lib/aarch64-linux-gnu
 253 endef
 254
 255 ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201305),y)
 256 TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/arm-none-linux-gnueabi/
 257 TOOLCHAIN_EXTERNAL_SOURCE = arm-2013.05-24-arm-none-linux-gnueabi-i686-pc-linux-gnu.tar.bz2
 258 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201311),y)
 259 TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/arm-none-linux-gnueabi/
 260 TOOLCHAIN_EXTERNAL_SOURCE = arm-2013.11-33-arm-none-linux-gnueabi-i686-pc-linux-gnu.tar.bz2
 261 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201405),y)
 262 TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/arm-none-linux-gnueabi/
 263 TOOLCHAIN_EXTERNAL_SOURCE = arm-2014.05-29-arm-none-linux-gnueabi-i686-pc-linux-gnu.tar.bz2
 264 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_ARAGO_ARMV7A_201109),y)
 265 TOOLCHAIN_EXTERNAL_SITE = http://software-dl.ti.com/sdoemb/sdoemb_public_sw/arago_toolchain/2011_09/exports/
 266 TOOLCHAIN_EXTERNAL_SOURCE = arago-2011.09-armv7a-linux-gnueabi-sdk.tar.bz2
 267 define TOOLCHAIN_EXTERNAL_FIXUP_CMDS
 268         mv $(TOOLCHAIN_EXTERNAL_INSTALL_DIR)/arago-2011.09/armv7a/* $(TOOLCHAIN_EXTERNAL_INSTALL_DIR)/
 269         rm -rf $(TOOLCHAIN_EXTERNAL_INSTALL_DIR)/arago-2011.09/
 270 endef
 271 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_ARAGO_ARMV5TE_201109),y)
 272 TOOLCHAIN_EXTERNAL_SITE = http://software-dl.ti.com/sdoemb/sdoemb_public_sw/arago_toolchain/2011_09/exports/
 273 TOOLCHAIN_EXTERNAL_SOURCE = arago-2011.09-armv5te-linux-gnueabi-sdk.tar.bz2
 274 define TOOLCHAIN_EXTERNAL_FIXUP_CMDS
 275         mv $(TOOLCHAIN_EXTERNAL_INSTALL_DIR)/arago-2011.09/armv5te/* $(TOOLCHAIN_EXTERNAL_INSTALL_DIR)/
 276         rm -rf $(TOOLCHAIN_EXTERNAL_INSTALL_DIR)/arago-2011.09/
 277 endef
 278 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_LINARO_ARM),y)
 279 TOOLCHAIN_EXTERNAL_SITE = http://releases.linaro.org/14.08/components/toolchain/binaries/
 280 TOOLCHAIN_EXTERNAL_SOURCE = gcc-linaro-arm-linux-gnueabihf-4.9-2014.08_linux.tar.xz
 281 TOOLCHAIN_EXTERNAL_POST_INSTALL_STAGING_HOOKS += TOOLCHAIN_EXTERNAL_LINARO_ARMHF_SYMLINK
 282 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_LINARO_ARMEB),y)
 283 TOOLCHAIN_EXTERNAL_SITE = http://releases.linaro.org/14.08/components/toolchain/binaries/
 284 TOOLCHAIN_EXTERNAL_SOURCE = gcc-linaro-armeb-linux-gnueabihf-4.9-2014.08_linux.tar.xz
 285 TOOLCHAIN_EXTERNAL_POST_INSTALL_STAGING_HOOKS += TOOLCHAIN_EXTERNAL_LINARO_ARMEBHF_SYMLINK
 286 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS201305),y)
 287 TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/mips-linux-gnu/
 288 TOOLCHAIN_EXTERNAL_SOURCE = mips-2013.05-66-mips-linux-gnu-i686-pc-linux-gnu.tar.bz2
 289 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS201311),y)
 290 TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/mips-linux-gnu/
 291 TOOLCHAIN_EXTERNAL_SOURCE = mips-2013.11-36-mips-linux-gnu-i686-pc-linux-gnu.tar.bz2
 292 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS201405),y)
 293 TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/mips-linux-gnu/
 294 TOOLCHAIN_EXTERNAL_SOURCE = mips-2014.05-27-mips-linux-gnu-i686-pc-linux-gnu.tar.bz2
 295 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII201305),y)
 296 TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/nios2-linux-gnu/
 297 TOOLCHAIN_EXTERNAL_SOURCE = sourceryg++-2013.05-43-nios2-linux-gnu-i686-pc-linux-gnu.tar.bz2
 298 TOOLCHAIN_EXTERNAL_POST_INSTALL_STAGING_HOOKS += TOOLCHAIN_EXTERNAL_SANITIZE_KERNEL_HEADERS
 299 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII201405),y)
 300 TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/nios2-linux-gnu/
 301 TOOLCHAIN_EXTERNAL_SOURCE = sourceryg++-2014.05-47-nios2-linux-gnu-i686-pc-linux-gnu.tar.bz2
 302 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC201009),y)
 303 TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/powerpc-linux-gnu/
 304 TOOLCHAIN_EXTERNAL_SOURCE = freescale-2010.09-55-powerpc-linux-gnu-i686-pc-linux-gnu.tar.bz2
 305 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC201103),y)
 306 TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/powerpc-linux-gnu/
 307 TOOLCHAIN_EXTERNAL_SOURCE = freescale-2011.03-38-powerpc-linux-gnu-i686-pc-linux-gnu.tar.bz2
 308 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC201203),y)
 309 TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/powerpc-mentor-linux-gnu/
 310 TOOLCHAIN_EXTERNAL_SOURCE = mentor-2012.03-71-powerpc-mentor-linux-gnu-i686-pc-linux-gnu.tar.bz2
 311 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH201103),y)
 312 TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/sh-linux-gnu/
 313 TOOLCHAIN_EXTERNAL_SOURCE = renesas-2011.03-37-sh-linux-gnu-i686-pc-linux-gnu.tar.bz2
 314 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH201203),y)
 315 TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/sh-linux-gnu/
 316 TOOLCHAIN_EXTERNAL_SOURCE = renesas-2012.03-35-sh-linux-gnu-i686-pc-linux-gnu.tar.bz2
 317 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH201209),y)
 318 TOOLCHAIN_EXTERNAL_SITE = https://sourcery.mentor.com/public/gnu_toolchain/sh-linux-gnu/
 319 TOOLCHAIN_EXTERNAL_SOURCE = renesas-2012.09-61-sh-linux-gnu-i686-pc-linux-gnu.tar.bz2
 320 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH2A_201009),y)
 321 TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/sh-uclinux/
 322 TOOLCHAIN_EXTERNAL_SOURCE = renesas-2010.09-60-sh-uclinux-i686-pc-linux-gnu.tar.bz2
 323 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH2A_201103),y)
 324 TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/sh-uclinux/
 325 TOOLCHAIN_EXTERNAL_SOURCE = renesas-2011.03-36-sh-uclinux-i686-pc-linux-gnu.tar.bz2
 326 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_201109),y)
 327 TOOLCHAIN_EXTERNAL_SITE = https://sourcery.mentor.com/public/gnu_toolchain/i686-pc-linux-gnu/
 328 TOOLCHAIN_EXTERNAL_SOURCE = ia32-2011.09-24-i686-pc-linux-gnu-i386-linux.tar.bz2
 329 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_201203),y)
 330 TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/i686-pc-linux-gnu/
 331 TOOLCHAIN_EXTERNAL_SOURCE = ia32-2012.03-27-i686-pc-linux-gnu-i386-linux.tar.bz2
 332 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_201209),y)
 333 TOOLCHAIN_EXTERNAL_SITE = https://sourcery.mentor.com/public/gnu_toolchain/i686-pc-linux-gnu/
 334 TOOLCHAIN_EXTERNAL_SOURCE = ia32-2012.09-62-i686-pc-linux-gnu-i386-linux.tar.bz2
 335 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2012R2),y)
 336 TOOLCHAIN_EXTERNAL_SITE = http://downloads.sourceforge.net/project/adi-toolchain/2012R2/2012R2-RC2/i386/
 337 TOOLCHAIN_EXTERNAL_SOURCE = blackfin-toolchain-2012R2-RC2.i386.tar.bz2
 338 TOOLCHAIN_EXTERNAL_EXTRA_DOWNLOADS = blackfin-toolchain-uclibc-full-2012R2-RC2.i386.tar.bz2
 339 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2013R1),y)
 340 TOOLCHAIN_EXTERNAL_SITE = http://downloads.sourceforge.net/project/adi-toolchain/2013R1/2013R1-RC1/i386/
 341 TOOLCHAIN_EXTERNAL_SOURCE = blackfin-toolchain-2013R1-RC1.i386.tar.bz2
 342 TOOLCHAIN_EXTERNAL_EXTRA_DOWNLOADS = blackfin-toolchain-uclibc-full-2013R1-RC1.i386.tar.bz2
 343 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2014R1),y)
 344 TOOLCHAIN_EXTERNAL_SITE = http://downloads.sourceforge.net/project/adi-toolchain/2014R1/2014R1-RC2/i386/
 345 TOOLCHAIN_EXTERNAL_SOURCE = blackfin-toolchain-2014R1-RC2.i386.tar.bz2
 346 TOOLCHAIN_EXTERNAL_EXTRA_DOWNLOADS = blackfin-toolchain-uclibc-full-2014R1-RC2.i386.tar.bz2
 347 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_XILINX_MICROBLAZEEL_14_3),y)
 348 TOOLCHAIN_EXTERNAL_SITE = http://sources.buildroot.net/
 349 TOOLCHAIN_EXTERNAL_SOURCE = lin32-microblazeel-unknown-linux-gnu_14.3_early.tar.xz
 350 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_XILINX_MICROBLAZEEL_V2),y)
 351 TOOLCHAIN_EXTERNAL_SITE = http://sources.buildroot.net/
 352 TOOLCHAIN_EXTERNAL_SOURCE = microblazeel-unknown-linux-gnu.tgz
 353 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_XILINX_MICROBLAZEBE_14_3),y)
 354 TOOLCHAIN_EXTERNAL_SITE = http://sources.buildroot.net/
 355 TOOLCHAIN_EXTERNAL_SOURCE = lin32-microblaze-unknown-linux-gnu_14.3_early.tar.xz
 356 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_XILINX_MICROBLAZEBE_V2),y)
 357 TOOLCHAIN_EXTERNAL_SITE = http://sources.buildroot.net/
 358 TOOLCHAIN_EXTERNAL_SOURCE = microblaze-unknown-linux-gnu.tgz
 359 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_LINARO_AARCH64),y)
 360 TOOLCHAIN_EXTERNAL_SITE = http://releases.linaro.org/14.08/components/toolchain/binaries/
 361 TOOLCHAIN_EXTERNAL_SOURCE = gcc-linaro-aarch64-linux-gnu-4.9-2014.08_linux.tar.xz
 362 TOOLCHAIN_EXTERNAL_POST_INSTALL_STAGING_HOOKS += TOOLCHAIN_EXTERNAL_LINARO_AARCH64_SYMLINK
 363 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64),y)
 364 TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/aarch64-linux-gnu/
 365 TOOLCHAIN_EXTERNAL_SOURCE = aarch64-2014.05-30-aarch64-linux-gnu-i686-pc-linux-gnu.tar.bz2
 366 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_MUSL_CROSS),y)
 367 TOOLCHAIN_EXTERNAL_VERSION = 1.1.1
 368 TOOLCHAIN_EXTERNAL_SITE = https://googledrive.com/host/0BwnS5DMB0YQ6bDhPZkpOYVFhbk0/musl-$(TOOLCHAIN_EXTERNAL_VERSION)/
 369 ifeq ($(BR2_arm),y)
 370 TOOLCHAIN_EXTERNAL_SOURCE = crossx86-arm-linux-musleabi-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
 371 else ifeq ($(BR2_armeb),y)
 372 TOOLCHAIN_EXTERNAL_SOURCE = crossx86-armeb-linux-musleabi-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
 373 else ifeq ($(BR2_i386),y)
 374 TOOLCHAIN_EXTERNAL_SOURCE = crossx86-i486-linux-musl-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
 375 else ifeq ($(BR2_microblazebe),y)
 376 TOOLCHAIN_EXTERNAL_SOURCE = crossx86-microblaze-linux-musl-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
 377 else ifeq ($(BR2_mips),y)
 378 ifeq ($(BR2_SOFT_FLOAT),y)
 379 TOOLCHAIN_EXTERNAL_SOURCE = crossx86-mips-sf-linux-musl-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
 380 else
 381 TOOLCHAIN_EXTERNAL_SOURCE = crossx86-mips-linux-musl-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
 382 endif # BR2_SOFT_FLOAT
 383 else ifeq ($(BR2_mipsel),y)
 384 ifeq ($(BR2_SOFT_FLOAT),y)
 385 TOOLCHAIN_EXTERNAL_SOURCE = crossx86-mipsel-sf-linux-musl-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
 386 else
 387 TOOLCHAIN_EXTERNAL_SOURCE = crossx86-mipsel-linux-musl-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
 388 endif # BR2_SOFT_FLOAT
 389 else ifeq ($(BR2_powerpc),y)
 390 TOOLCHAIN_EXTERNAL_SOURCE = crossx86-powerpc-linux-musl-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
 391 else ifeq ($(BR2_x86_64),y)
 392 TOOLCHAIN_EXTERNAL_SOURCE = crossx86-x86_64-linux-musl-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
 393 endif
 394 else
 395 # Custom toolchain
 396 TOOLCHAIN_EXTERNAL_SITE = $(dir $(call qstrip,$(BR2_TOOLCHAIN_EXTERNAL_URL)))
 397 TOOLCHAIN_EXTERNAL_SOURCE = $(notdir $(call qstrip,$(BR2_TOOLCHAIN_EXTERNAL_URL)))
 398 endif
 399
 400 # In fact, we don't need to download the toolchain, since it is already
 401 # available on the system, so force the site and source to be empty so
 402 # that nothing will be downloaded/extracted.
 403 ifeq ($(BR2_TOOLCHAIN_EXTERNAL_PREINSTALLED),y)
 404 TOOLCHAIN_EXTERNAL_SITE =
 405 TOOLCHAIN_EXTERNAL_SOURCE =
 406 endif
 407
 408 TOOLCHAIN_EXTERNAL_ADD_TOOLCHAIN_DEPENDENCY = NO
 409
 410 TOOLCHAIN_EXTERNAL_INSTALL_STAGING = YES
 411
 412 ifeq ($(BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2012R2)$(BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2013R1)$(BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2014R1),y)
 413 # Special handling for Blackfin toolchain, because of the split in two
 414 # tarballs, and the organization of tarball contents. The tarballs
 415 # contain ./opt/uClinux/{bfin-uclinux,bfin-linux-uclibc} directories,
 416 # which themselves contain the toolchain. This is why we strip more
 417 # components than usual.
 418 define TOOLCHAIN_EXTERNAL_EXTRACT_CMDS
 419         mkdir -p $(TOOLCHAIN_EXTERNAL_INSTALL_DIR)
 420         $(call suitable-extractor,$(TOOLCHAIN_EXTERNAL_SOURCE)) $(DL_DIR)/$(TOOLCHAIN_EXTERNAL_SOURCE) | \
 421                 $(TAR) $(TAR_STRIP_COMPONENTS)=3 --hard-dereference -C $(TOOLCHAIN_EXTERNAL_INSTALL_DIR) $(TAR_OPTIONS) -
 422         $(call suitable-extractor,$(TOOLCHAIN_EXTERNAL_EXTRA_DOWNLOADS)) $(DL_DIR)/$(TOOLCHAIN_EXTERNAL_EXTRA_DOWNLOADS) | \
 423                 $(TAR) $(TAR_STRIP_COMPONENTS)=3 --hard-dereference -C $(TOOLCHAIN_EXTERNAL_INSTALL_DIR) $(TAR_OPTIONS) -
 424 endef
 425 else ifneq ($(TOOLCHAIN_EXTERNAL_SOURCE),)
 426 # Normal handling of toolchain tarball extraction.
 427 define TOOLCHAIN_EXTERNAL_EXTRACT_CMDS
 428         mkdir -p $(TOOLCHAIN_EXTERNAL_INSTALL_DIR)
 429         $(call suitable-extractor,$(TOOLCHAIN_EXTERNAL_SOURCE)) $(DL_DIR)/$(TOOLCHAIN_EXTERNAL_SOURCE) | \
 430                 $(TAR) $(TAR_STRIP_COMPONENTS)=1 --exclude='usr/lib/locale/*' -C $(TOOLCHAIN_EXTERNAL_INSTALL_DIR) $(TAR_OPTIONS) -
 431         $(TOOLCHAIN_EXTERNAL_FIXUP_CMDS)
 432 endef
 433 endif
 434
 435 # Returns the location of the libc.a file for the given compiler + flags
 436 define toolchain_find_libc_a
 437 $$(readlink -f $$(LANG=C $(1) -print-file-name=libc.a))
 438 endef
 439
 440 # Returns the sysroot location for the given compiler + flags
 441 define toolchain_find_sysroot
 442 $$(echo -n $(call toolchain_find_libc_a,$(1)) | sed -r -e 's:(usr/)?lib(32|64)?/([^/]*/)?libc\.a::')
 443 endef
 444
 445 # Returns the lib subdirectory for the given compiler + flags (i.e
 446 # typically lib32 or lib64 for some toolchains)
 447 define toolchain_find_libdir
 448 $$(echo -n $(call toolchain_find_libc_a,$(1)) | sed -r -e 's:.*/(usr/)?(lib(32|64)?)/([^/]*/)?libc.a:\2:')
 449 endef
 450
 451 # Checks for an already installed toolchain: check the toolchain
 452 # location, check that it supports sysroot, and then verify that it
 453 # matches the configuration provided in Buildroot: ABI, C++ support,
 454 # kernel headers version, type of C library and all C library features.
 455 define TOOLCHAIN_EXTERNAL_CONFIGURE_CMDS
 456         $(Q)$(call check_cross_compiler_exists,$(TOOLCHAIN_EXTERNAL_CC))
 457         $(Q)$(call check_unusable_toolchain,$(TOOLCHAIN_EXTERNAL_CC))
 458         $(Q)SYSROOT_DIR="$(call toolchain_find_sysroot,$(TOOLCHAIN_EXTERNAL_CC))" ; \
 459         if test -z "$${SYSROOT_DIR}" ; then \
 460                 @echo "External toolchain doesn't support --sysroot. Cannot use." ; \
 461                 exit 1 ; \
 462         fi ; \
 463         $(call check_kernel_headers_version,\
 464                 $(call toolchain_find_sysroot,$(TOOLCHAIN_EXTERNAL_CC)),\
 465                 $(call qstrip,$(BR2_TOOLCHAIN_HEADERS_AT_LEAST))); \
 466         if test "$(BR2_arm)" = "y" ; then \
 467                 $(call check_arm_abi,\
 468                         "$(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS)",\
 469                         $(TOOLCHAIN_EXTERNAL_READELF)) ; \
 470         fi ; \
 471         if test "$(BR2_INSTALL_LIBSTDCPP)" = "y" ; then \
 472                 $(call check_cplusplus,$(TOOLCHAIN_EXTERNAL_CXX)) ; \
 473         fi ; \
 474         if test "$(BR2_TOOLCHAIN_EXTERNAL_UCLIBC)" = "y" ; then \
 475                 $(call check_uclibc,$${SYSROOT_DIR}) ; \
 476         elif test "$(BR2_TOOLCHAIN_EXTERNAL_MUSL)" = "y" ; then \
 477                 $(call check_musl,$${SYSROOT_DIR}) ; \
 478         else \
 479                 $(call check_glibc,$${SYSROOT_DIR}) ; \
 480         fi
 481 endef
 482
 483 # With the musl C library, the libc.so library directly plays the role
 484 # of the dynamic library loader. We just need to create a symbolic
 485 # link to libc.so with the appropriate name.
 486 ifeq ($(BR2_TOOLCHAIN_EXTERNAL_MUSL),y)
 487 ifeq ($(BR2_i386),y)
 488 MUSL_ARCH = i386
 489 else
 490 MUSL_ARCH = $(ARCH)
 491 endif
 492 define TOOLCHAIN_EXTERNAL_MUSL_LD_LINK
 493         ln -sf libc.so $(TARGET_DIR)/lib/ld-musl-$(MUSL_ARCH).so.1
 494 endef
 495 TOOLCHAIN_EXTERNAL_POST_INSTALL_STAGING_HOOKS += TOOLCHAIN_EXTERNAL_MUSL_LD_LINK
 496 endif
 497
 498 # Integration of the toolchain into Buildroot: find the main sysroot
 499 # and the variant-specific sysroot, then copy the needed libraries to
 500 # the $(TARGET_DIR) and copy the whole sysroot (libraries and headers)
 501 # to $(STAGING_DIR).
 502 #
 503 # Variables are defined as follows:
 504 #
 505 #  LIBC_A_LOCATION:     location of the libc.a file in the default
 506 #                       multilib variant (allows to find the main
 507 #                       sysroot directory)
 508 #                       Ex: /x-tools/mips-2011.03/mips-linux-gnu/libc/usr/lib/libc.a
 509 #
 510 #  SYSROOT_DIR:         the main sysroot directory, deduced from
 511 #                       LIBC_A_LOCATION by removing the
 512 #                       usr/lib[32|64]/libc.a part of the path.
 513 #                       Ex: /x-tools/mips-2011.03/mips-linux-gnu/libc/
 514 #
 515 # ARCH_LIBC_A_LOCATION: location of the libc.a file in the selected
 516 #                       multilib variant (taking into account the
 517 #                       CFLAGS). Allows to find the sysroot of the
 518 #                       selected multilib variant.
 519 #                       Ex: /x-tools/mips-2011.03/mips-linux-gnu/libc/mips16/soft-float/el/usr/lib/libc.a
 520 #
 521 # ARCH_SYSROOT_DIR:     the sysroot of the selected multilib variant,
 522 #                       deduced from ARCH_LIBC_A_LOCATION by removing
 523 #                       usr/lib[32|64]/libc.a at the end of the path.
 524 #                       Ex: /x-tools/mips-2011.03/mips-linux-gnu/libc/mips16/soft-float/el/
 525 #
 526 # ARCH_LIB_DIR:         'lib', 'lib32' or 'lib64' depending on where libraries
 527 #                       are stored. Deduced from ARCH_LIBC_A_LOCATION by
 528 #                       looking at usr/lib??/libc.a.
 529 #                       Ex: lib
 530 #
 531 # ARCH_SUBDIR:          the relative location of the sysroot of the selected
 532 #                       multilib variant compared to the main sysroot.
 533 #                       Ex: mips16/soft-float/el
 534 #
 535 # SUPPORT_LIB_DIR:      some toolchains, such as recent Linaro toolchains,
 536 #                       store GCC support libraries (libstdc++,
 537 #                       libgcc_s, etc.) outside of the sysroot. In
 538 #                       this case, SUPPORT_LIB_DIR is set to a
 539 #                       non-empty value, and points to the directory
 540 #                       where these support libraries are
 541 #                       available. Those libraries will be copied to
 542 #                       our sysroot, and the directory will also be
 543 #                       considered when searching libraries for copy
 544 #                       to the target filesystem.
 545
 546 define TOOLCHAIN_EXTERNAL_INSTALL_CORE
 547         $(Q)SYSROOT_DIR="$(call toolchain_find_sysroot,$(TOOLCHAIN_EXTERNAL_CC))" ; \
 548         if test -z "$${SYSROOT_DIR}" ; then \
 549                 @echo "External toolchain doesn't support --sysroot. Cannot use." ; \
 550                 exit 1 ; \
 551         fi ; \
 552         ARCH_SYSROOT_DIR="$(call toolchain_find_sysroot,$(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS))" ; \
 553         ARCH_LIB_DIR="$(call toolchain_find_libdir,$(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS))" ; \
 554         SUPPORT_LIB_DIR="" ; \
 555         if test `find $${ARCH_SYSROOT_DIR} -name 'libstdc++.a' | wc -l` -eq 0 ; then \
 556                 LIBSTDCPP_A_LOCATION=$$(LANG=C $(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS) -print-file-name=libstdc++.a) ; \
 557                 if [ -e "$${LIBSTDCPP_A_LOCATION}" ]; then \
 558                         SUPPORT_LIB_DIR=`readlink -f $${LIBSTDCPP_A_LOCATION} | sed -r -e 's:libstdc\+\+\.a::'` ; \
 559                 fi ; \
 560         fi ; \
 561         ARCH_SUBDIR=`echo $${ARCH_SYSROOT_DIR} | sed -r -e "s:^$${SYSROOT_DIR}(.*)/$$:\1:"` ; \
 562         if test -z "$(BR2_PREFER_STATIC_LIB)" ; then \
 563                 $(call MESSAGE,"Copying external toolchain libraries to target...") ; \
 564                 for libs in $(LIB_EXTERNAL_LIBS); do \
 565                         $(call copy_toolchain_lib_root,$${ARCH_SYSROOT_DIR},$${SUPPORT_LIB_DIR},$${ARCH_LIB_DIR},$$libs,/lib); \
 566                 done ; \
 567                 for libs in $(USR_LIB_EXTERNAL_LIBS); do \
 568                         $(call copy_toolchain_lib_root,$${ARCH_SYSROOT_DIR},$${SUPPORT_LIB_DIR},$${ARCH_LIB_DIR},$$libs,/usr/lib); \
 569                 done ; \
 570         fi ; \
 571         $(call MESSAGE,"Copying external toolchain sysroot to staging...") ; \
 572         $(call copy_toolchain_sysroot,$${SYSROOT_DIR},$${ARCH_SYSROOT_DIR},$${ARCH_SUBDIR},$${ARCH_LIB_DIR},$${SUPPORT_LIB_DIR}) ; \
 573         if test "$(BR2_TOOLCHAIN_EXTERNAL_GDB_SERVER_COPY)" = "y"; then \
 574                 $(call MESSAGE,"Copying gdbserver") ; \
 575                 gdbserver_found=0 ; \
 576                 for d in $${ARCH_SYSROOT_DIR}/usr $${ARCH_SYSROOT_DIR}/../debug-root/usr $${ARCH_SYSROOT_DIR}/usr/$${ARCH_LIB_DIR} ; do \
 577                         if test -f $${d}/bin/gdbserver ; then \
 578                                 install -m 0755 -D $${d}/bin/gdbserver $(TARGET_DIR)/usr/bin/gdbserver ; \
 579                                 gdbserver_found=1 ; \
 580                                 break ; \
 581                         fi ; \
 582                 done ; \
 583                 if [ $${gdbserver_found} -eq 0 ] ; then \
 584                         echo "Could not find gdbserver in external toolchain" ; \
 585                         exit 1 ; \
 586                 fi ; \
 587         fi
 588 endef
 589
 590 # Special installation target used on the Blackfin architecture when
 591 # FDPIC is not the primary binary format being used, but the user has
 592 # nonetheless requested the installation of the FDPIC libraries to the
 593 # target filesystem.
 594 ifeq ($(BR2_BFIN_INSTALL_FDPIC_SHARED),y)
 595 define TOOLCHAIN_EXTERNAL_INSTALL_BFIN_FDPIC
 596         $(Q)$(call MESSAGE,"Install external toolchain FDPIC libraries to target...") ; \
 597         FDPIC_EXTERNAL_CC=$(dir $(TOOLCHAIN_EXTERNAL_CC))/../../bfin-linux-uclibc/bin/bfin-linux-uclibc-gcc ; \
 598         FDPIC_SYSROOT_DIR="$(call toolchain_find_sysroot,$${FDPIC_EXTERNAL_CC} $(TOOLCHAIN_EXTERNAL_CFLAGS))" ; \
 599         FDPIC_LIB_DIR="$(call toolchain_find_libdir,$${FDPIC_EXTERNAL_CC} $(TOOLCHAIN_EXTERNAL_CFLAGS))" ; \
 600         FDPIC_SUPPORT_LIB_DIR="" ; \
 601         if test `find $${FDPIC_SYSROOT_DIR} -name 'libstdc++.a' | wc -l` -eq 0 ; then \
 602                 FDPIC_LIBSTDCPP_A_LOCATION=$$(LANG=C $${FDPIC_EXTERNAL_CC} $(TOOLCHAIN_EXTERNAL_CFLAGS) -print-file-name=libstdc++.a) ; \
 603                 if [ -e "$${FDPIC_LIBSTDCPP_A_LOCATION}" ]; then \
 604                         FDPIC_SUPPORT_LIB_DIR=`readlink -f $${FDPIC_LIBSTDCPP_A_LOCATION} | sed -r -e 's:libstdc\+\+\.a::'` ; \
 605                 fi ; \
 606         fi ; \
 607         for libs in $(LIB_EXTERNAL_LIBS); do \
 608                 $(call copy_toolchain_lib_root,$${FDPIC_SYSROOT_DIR},$${FDPIC_SUPPORT_LIB_DIR},$${FDPIC_LIB_DIR},$$libs,/lib); \
 609         done ; \
 610         for libs in $(USR_LIB_EXTERNAL_LIBS); do \
 611                 $(call copy_toolchain_lib_root,$${FDPIC_SYSROOT_DIR},$${FDPIC_SUPPORT_LIB_DIR},$${FDPIC_LIB_DIR},$$libs,/usr/lib); \
 612         done
 613 endef
 614 endif
 615
 616 # Special installation target used on the Blackfin architecture when
 617 # shared FLAT is not the primary format being used, but the user has
 618 # nonetheless requested the installation of the shared FLAT libraries
 619 # to the target filesystem. The flat libraries are found and linked
 620 # according to the index in name "libN.so". Index 1 is reserved for
 621 # the standard C library. Customer libraries can use 4 and above.
 622 ifeq ($(BR2_BFIN_INSTALL_FLAT_SHARED),y)
 623 define TOOLCHAIN_EXTERNAL_INSTALL_BFIN_FLAT
 624         $(Q)$(call MESSAGE,"Install external toolchain FLAT libraries to target...") ; \
 625         FLAT_EXTERNAL_CC=$(dir $(TOOLCHAIN_EXTERNAL_CC))../../bfin-uclinux/bin/bfin-uclinux-gcc ; \
 626         FLAT_LIBC_A_LOCATION=`$${FLAT_EXTERNAL_CC} $(TOOLCHAIN_EXTERNAL_CFLAGS) -mid-shared-library -print-file-name=libc`; \
 627         if [ -f $${FLAT_LIBC_A_LOCATION} -a ! -h $${FLAT_LIBC_A_LOCATION} ] ; then \
 628                 $(INSTALL) -D $${FLAT_LIBC_A_LOCATION} $(TARGET_DIR)/lib/lib1.so; \
 629         fi
 630 endef
 631 endif
 632
 633 # Build toolchain wrapper for preprocessor, C and C++ compiler and setup
 634 # symlinks for everything else. Skip gdb symlink when we are building our
 635 # own gdb to prevent two gdb's in output/host/usr/bin.
 636 define TOOLCHAIN_EXTERNAL_INSTALL_WRAPPER
 637         $(Q)$(call MESSAGE,"Building ext-toolchain wrapper")
 638         mkdir -p $(HOST_DIR)/usr/bin; cd $(HOST_DIR)/usr/bin; \
 639         for i in $(TOOLCHAIN_EXTERNAL_CROSS)*; do \
 640                 base=$${i##*/}; \
 641                 case "$$base" in \
 642                 *cc|*cc-*|*++|*++-*|*cpp) \
 643                         ln -sf ext-toolchain-wrapper $$base; \
 644                         ;; \
 645                 *gdb|*gdbtui) \
 646                         if test "$(BR2_PACKAGE_HOST_GDB)" != "y"; then \
 647                                 ln -sf $$(echo $$i | sed 's%^$(HOST_DIR)%../..%') .; \
 648                         fi \
 649                         ;; \
 650                 *) \
 651                         ln -sf $$(echo $$i | sed 's%^$(HOST_DIR)%../..%') .; \
 652                         ;; \
 653                 esac; \
 654         done ;
 655         # We use --hash-style=both to increase the compatibility of
 656         # the generated binary with older platforms
 657         $(HOSTCC) $(HOST_CFLAGS) $(TOOLCHAIN_EXTERNAL_WRAPPER_ARGS) -s -Wl,--hash-style=both \
 658                 toolchain/toolchain-external/ext-toolchain-wrapper.c \
 659                 -o $(HOST_DIR)/usr/bin/ext-toolchain-wrapper
 660 endef
 661
 662 # This sed magic is taken from Linux headers_install.sh script.
 663 define TOOLCHAIN_EXTERNAL_SANITIZE_KERNEL_HEADERS
 664         $(Q)$(call MESSAGE,"Sanitizing kernel headers");
 665         find $(STAGING_DIR)/usr/include/linux/ -name "*.h" | xargs sed -r -i \
 666                 -e 's/([ \t(])(__user|__force|__iomem)[ \t]/\1/g' \
 667                 -e 's/__attribute_const__([ \t]|$$)/\1/g' \
 668                 -e 's@^#include <linux/compiler.h>@@' \
 669                 -e 's/(^|[^a-zA-Z0-9])__packed([^a-zA-Z0-9_]|$$)/\1__attribute__((packed))\2/g' \
 670                 -e 's/(^|[ \t(])(inline|asm|volatile)([ \t(]|$$)/\1__\2__\3/g' \
 671                 -e 's@#(ifndef|define|endif[ \t]*/[*])[ \t]*_UAPI@#\1 @'
 672 endef
 673
 674 define TOOLCHAIN_EXTERNAL_INSTALL_GDBINIT
 675         if test -f $(TARGET_CROSS)gdb ; then \
 676                 $(call gen_gdbinit_file) ; \
 677         fi
 678 endef
 679
 680 # Even though we're installing things in both the staging, the host
 681 # and the target directory, we do everything within the
 682 # install-staging step, arbitrarily.
 683 define TOOLCHAIN_EXTERNAL_INSTALL_STAGING_CMDS
 684         $(TOOLCHAIN_EXTERNAL_INSTALL_CORE)
 685         $(TOOLCHAIN_EXTERNAL_INSTALL_BFIN_FDPIC)
 686         $(TOOLCHAIN_EXTERNAL_INSTALL_BFIN_FLAT)
 687         $(TOOLCHAIN_EXTERNAL_INSTALL_WRAPPER)
 688         $(TOOLCHAIN_EXTERNAL_INSTALL_GDBINIT)
 689 endef
 690
 691 $(eval $(generic-package))