toolchain/Config.in

   1 # Copyright (C) 2006-2013 OpenWrt.org
   2 #
   3 # This is free software, licensed under the GNU General Public License v2.
   4 # See /LICENSE for more information.
   5 #
   6
   7 menuconfig TARGET_OPTIONS
   8         bool "Target Options"  if DEVEL
   9
  10         config TARGET_OPTIMIZATION
  11                 string "Target Optimizations" if TARGET_OPTIONS
  12                 default DEFAULT_TARGET_OPTIMIZATION
  13                 help
  14                   Optimizations to use when building for the target host.
  15
  16         config SOFT_FLOAT
  17                 bool "Use software floating point by default" if TARGET_OPTIONS
  18                 default y if !HAS_FPU
  19                 depends on arm || armeb || powerpc || mipsel || mips || mips64el || mips64
  20                 help
  21                   If your target CPU does not have a Floating Point Unit (FPU) or a
  22                   kernel FPU emulator, but you still wish to support floating point
  23                   functions, then everything will need to be compiled with soft floating
  24                   point support (-msoft-float).
  25
  26                   Most people will answer N.
  27
  28         config USE_MIPS16
  29                 bool "Build packages with MIPS16 instructions" if TARGET_OPTIONS
  30                 depends on HAS_MIPS16
  31                 default y
  32                 help
  33                   If your target CPU does support the MIPS16 instruction set
  34                   and you want to use it for packages, enable this option.
  35                   MIPS16 produces smaller binaries thus reducing pressure on
  36                   caches and TLB.
  37
  38                   Most people will answer N.
  39
  40
  41         choice BPF_TOOLCHAIN
  42                 prompt "BPF toolchain" if DEVEL
  43                 default BPF_TOOLCHAIN_BUILD_LLVM if BUILDBOT
  44                 default BPF_TOOLCHAIN_PREBUILT if HAS_PREBUILT_LLVM_TOOLCHAIN
  45                 default BPF_TOOLCHAIN_NONE
  46
  47                 config BPF_TOOLCHAIN_NONE
  48                         bool "None"
  49
  50                 config BPF_TOOLCHAIN_PREBUILT
  51                         bool "Use prebuilt LLVM toolchain"
  52                         depends on HAS_PREBUILT_LLVM_TOOLCHAIN
  53                         select USE_LLVM_PREBUILT
  54
  55                 config BPF_TOOLCHAIN_HOST
  56                         select USE_LLVM_HOST
  57                         bool "Use host LLVM toolchain"
  58
  59                 config BPF_TOOLCHAIN_BUILD_LLVM
  60                         select USE_LLVM_BUILD
  61                         bool "Build LLVM toolchain for eBPF"
  62                         help
  63                           If enabled, a LLVM toolchain for building eBPF binaries will be built.
  64                           If this is not enabled, eBPF packages can only be built if the host
  65                           has a suitable toolchain
  66         endchoice
  67
  68         config BPF_TOOLCHAIN_HOST_PATH
  69                 string
  70                 depends on BPF_TOOLCHAIN_HOST
  71                 prompt "Host LLVM toolchain path (prefix)" if DEVEL
  72                 default "/usr/local/opt/llvm" if HOST_OS_MACOS
  73                 default ""
  74
  75 menuconfig EXTERNAL_TOOLCHAIN
  76         bool
  77         prompt "Use external toolchain"  if DEVEL
  78         help
  79           If enabled, the buildroot will compile using an existing toolchain instead of
  80           compiling one.
  81
  82         config NATIVE_TOOLCHAIN
  83                 bool
  84                 prompt "Use host's toolchain"  if DEVEL
  85                 depends on EXTERNAL_TOOLCHAIN
  86                 select NO_STRIP
  87                 help
  88                   If enabled, the buildroot will compile using the native toolchain for your
  89                   host instead of compiling one.
  90
  91         config TARGET_NAME
  92                 string
  93                 prompt "Target name"  if DEVEL
  94                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
  95                 default "aarch64-unknown-linux-gnu"  if aarch64
  96                 default "aarch64_be-unknown-linux-gnu"  if aarch64_be
  97                 default "arm-unknown-linux-gnu"      if arm
  98                 default "armeb-unknown-linux-gnu"    if armeb
  99                 default "i486-unknown-linux-gnu"     if i386
 100                 default "mips-unknown-linux-gnu"     if mips
 101                 default "mipsel-unknown-linux-gnu"   if mipsel
 102                 default "powerpc-unknown-linux-gnu"  if powerpc
 103                 default "x86_64-unknown-linux-gnu"   if x86_64
 104
 105         config TOOLCHAIN_PREFIX
 106                 string
 107                 prompt "Toolchain prefix"  if DEVEL
 108                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 109                 default "aarch64-unknown-linux-gnu"  if aarch64
 110                 default "aarch64_be-unknown-linux-gnu"  if aarch64_be
 111                 default "arm-unknown-linux-gnu-"      if arm
 112                 default "armeb-unknown-linux-gnu-"    if armeb
 113                 default "i486-unknown-linux-gnu-"     if i386
 114                 default "mips-unknown-linux-gnu-"     if mips
 115                 default "mipsel-unknown-linux-gnu-"   if mipsel
 116                 default "powerpc-unknown-linux-gnu-"  if powerpc
 117                 default "x86_64-unknown-linux-gnu-"   if x86_64
 118
 119         config TOOLCHAIN_ROOT
 120                 string
 121                 prompt "Toolchain root"  if DEVEL
 122                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 123                 default "/opt/cross/aarch64-unknown-linux-gnu"  if aarch64
 124                 default "/opt/cross/aarch64_be-unknown-linux-gnu"  if aarch64_be
 125                 default "/opt/cross/arm-unknown-linux-gnu"      if arm
 126                 default "/opt/cross/armeb-unknown-linux-gnu"    if armeb
 127                 default "/opt/cross/i486-unknown-linux-gnu"     if i386
 128                 default "/opt/cross/mips-unknown-linux-gnu"     if mips
 129                 default "/opt/cross/mipsel-unknown-linux-gnu"   if mipsel
 130                 default "/opt/cross/powerpc-unknown-linux-gnu"  if powerpc
 131                 default "/opt/cross/x86_64-unknown-linux-gnu"   if x86_64
 132
 133         choice TOOLCHAIN_LIBC_TYPE
 134                 prompt "Toolchain libc"  if DEVEL
 135                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 136                 default EXTERNAL_TOOLCHAIN_LIBC_USE_MUSL
 137                 help
 138                   Specify the libc type used by the external toolchain. The given value
 139                   is passed as -m flag to all gcc and g++ invocations. This is mainly
 140                   intended for multilib toolchains which support glibc and uclibc at
 141                   the same time. If no value is specified, no -m flag is passed.
 142
 143                 config EXTERNAL_TOOLCHAIN_LIBC_USE_GLIBC
 144                         bool "glibc"
 145                         select USE_GLIBC
 146
 147                 config EXTERNAL_TOOLCHAIN_LIBC_USE_MUSL
 148                         bool "musl"
 149                         select USE_MUSL
 150
 151         endchoice
 152
 153         config TOOLCHAIN_LIBC
 154                 string
 155                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 156                 default "glibc" if EXTERNAL_TOOLCHAIN_LIBC_USE_GLIBC
 157                 default "musl" if EXTERNAL_TOOLCHAIN_LIBC_USE_MUSL
 158
 159         config TOOLCHAIN_BIN_PATH
 160                 string
 161                 prompt "Toolchain program path"  if DEVEL
 162                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 163                 default "./usr/bin ./bin"
 164                 help
 165                   Specify additional directories searched for toolchain binaries
 166                   (override PATH). Use ./DIR for directories relative to the root above.
 167
 168         config TOOLCHAIN_INC_PATH
 169                 string
 170                 prompt "Toolchain include path"  if DEVEL
 171                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 172                 default "./usr/include ./include/fortify ./include" if EXTERNAL_TOOLCHAIN_LIBC_USE_MUSL
 173                 default "./usr/include ./include"
 174                 help
 175                   Specify additional directories searched for header files (override
 176                   CPPFLAGS). Use ./DIR for directories relative to the root above.
 177
 178         config TOOLCHAIN_LIB_PATH
 179                 string
 180                 prompt "Toolchain library path"  if DEVEL
 181                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 182                 default "./usr/lib ./lib"
 183                 help
 184                   Specify additional directories searched for libraries (override LDFLAGS).
 185                   Use ./DIR for directories relative to the root above.
 186
 187 config NEED_TOOLCHAIN
 188         bool
 189         depends on DEVEL
 190         default y if !EXTERNAL_TOOLCHAIN
 191
 192 menuconfig TOOLCHAINOPTS
 193         bool "Toolchain Options"  if DEVEL
 194         depends on NEED_TOOLCHAIN
 195
 196 menuconfig EXTRA_TARGET_ARCH
 197         bool
 198         prompt "Enable an extra toolchain target architecture" if TOOLCHAINOPTS
 199         depends on !sparc
 200         default n
 201         help
 202           Some builds may require a 'biarch' toolchain. This option
 203           allows you to specify an additional target arch.
 204
 205           Most people will answer N here.
 206
 207         config EXTRA_TARGET_ARCH_NAME
 208                 string
 209                 prompt "Extra architecture name" if EXTRA_TARGET_ARCH
 210                 help
 211                   Specify the cpu name (eg powerpc64 or x86_64) of the
 212                   additional target architecture.
 213
 214         config EXTRA_TARGET_ARCH_OPTS
 215                 string
 216                 prompt "Extra architecture compiler options" if EXTRA_TARGET_ARCH
 217                 help
 218                   If you're specifying an addition target architecture,
 219                   you'll probably need to also provide options to make
 220                   the compiler use this alternate arch.
 221
 222                   For example, if you're building a compiler that can build
 223                   both powerpc and powerpc64 binaries, you'll need to
 224                   specify -m64 here.
 225
 226
 227         choice
 228                 prompt "MIPS64 user-land ABI" if TOOLCHAINOPTS && (mips64 || mips64el)
 229                 default MIPS64_ABI_N64
 230                 help
 231                    MIPS64 supports 3 different user-land ABIs: o32 (legacy),
 232                    n32 and n64.
 233
 234                 config MIPS64_ABI_N64
 235                         bool "n64"
 236
 237                 config MIPS64_ABI_N32
 238                         depends on !LIBC_USE_MUSL
 239                         bool "n32"
 240
 241                 config MIPS64_ABI_O32
 242                         bool "o32"
 243
 244         endchoice
 245
 246 comment "Binary tools"
 247         depends on TOOLCHAINOPTS
 248
 249 source "toolchain/binutils/Config.in"
 250
 251 config DWARVES
 252         bool
 253         prompt "Build pahole" if TOOLCHAINOPTS
 254         depends on !HOST_OS_MACOS
 255         default n
 256         help
 257           Enable if you want to build pahole and the dwarves tools.
 258
 259 comment "Compiler"
 260         depends on TOOLCHAINOPTS
 261
 262 source "toolchain/gcc/Config.in"
 263
 264 config NASM
 265         bool
 266         depends on ( i386 || x86_64 )
 267         prompt "Build nasm" if TOOLCHAINOPTS
 268         default y
 269         help
 270           Enable if you want to build nasm
 271
 272 comment "C Library"
 273         depends on TOOLCHAINOPTS
 274
 275 choice
 276         prompt "C Library implementation" if TOOLCHAINOPTS
 277         default LIBC_USE_GLIBC if arc
 278         default LIBC_USE_MUSL
 279         help
 280           Select the C library implementation.
 281
 282         config LIBC_USE_GLIBC
 283                 bool "Use glibc"
 284                 select USE_GLIBC
 285
 286         config LIBC_USE_MUSL
 287                 select USE_MUSL
 288                 bool "Use musl"
 289                 depends on !arc
 290
 291 endchoice
 292
 293 source "toolchain/musl/Config.in"
 294
 295 comment "Debuggers"
 296         depends on TOOLCHAINOPTS
 297
 298 config GDB
 299         bool
 300         prompt "Build gdb" if TOOLCHAINOPTS
 301         default y if !EXTERNAL_TOOLCHAIN
 302         help
 303           Enable if you want to build the gdb.
 304
 305 config GDB_PYTHON
 306         bool
 307         depends on GDB
 308         prompt "Build gdb with python binding"
 309
 310         help
 311           Enable the python bindings for GDB to allow using python in the gdb shell.
 312
 313 config HAS_BPF_TOOLCHAIN
 314         bool
 315
 316 config HAS_PREBUILT_LLVM_TOOLCHAIN
 317         def_bool $(shell, [ -f llvm-bpf/.llvm-version ] && echo y || echo n)
 318
 319 config USE_LLVM_HOST
 320         select HAS_BPF_TOOLCHAIN
 321         bool
 322
 323 config USE_LLVM_PREBUILT
 324         select HAS_BPF_TOOLCHAIN
 325         default y if !DEVEL && !BUILDBOT && HAS_PREBUILT_LLVM_TOOLCHAIN
 326         bool
 327
 328 config USE_LLVM_BUILD
 329         default y if !DEVEL && BUILDBOT
 330         select HAS_BPF_TOOLCHAIN
 331         bool
 332
 333 config USE_GLIBC
 334         default y if !TOOLCHAINOPTS && !EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN && (arc)
 335         bool
 336
 337 config USE_MUSL
 338         default y if !TOOLCHAINOPTS && !EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN && !(arc)
 339         bool
 340
 341 config SSP_SUPPORT
 342         default y if !PKG_CC_STACKPROTECTOR_NONE
 343         bool
 344
 345 config USE_EXTERNAL_LIBC
 346         bool
 347         default y if EXTERNAL_TOOLCHAIN || NATIVE_TOOLCHAIN
 348
 349 source "toolchain/binutils/Config.version"
 350 source "toolchain/gcc/Config.version"
 351
 352 config LIBC
 353         string
 354         default "glibc"   if USE_GLIBC
 355         default "musl"    if USE_MUSL
 356
 357 config TARGET_SUFFIX
 358         string
 359         default "gnueabi"         if USE_GLIBC && (arm || armeb)
 360         default "gnu"             if USE_GLIBC && !(arm || armeb)
 361         default "muslgnueabi"     if USE_MUSL && (arm || armeb)
 362         default "musl"            if USE_MUSL && !(arm || armeb)
 363
 364 config MIPS64_ABI
 365         depends on mips64 || mips64el
 366         string
 367         default "64" if MIPS64_ABI_N64
 368         default "n32" if MIPS64_ABI_N32
 369         default "32" if MIPS64_ABI_O32
 370         default "64"