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 EXTERNAL_GCC_VERSION
 154                 string
 155                 prompt "External Toolchain GCC Version" if DEVEL
 156                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 157                 help
 158                   Manually specify the GCC version used by the selected
 159                   external toolchain.
 160
 161         config TOOLCHAIN_LIBC
 162                 string
 163                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 164                 default "glibc" if EXTERNAL_TOOLCHAIN_LIBC_USE_GLIBC
 165                 default "musl" if EXTERNAL_TOOLCHAIN_LIBC_USE_MUSL
 166
 167         config TOOLCHAIN_BIN_PATH
 168                 string
 169                 prompt "Toolchain program path"  if DEVEL
 170                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 171                 default "./usr/bin ./bin"
 172                 help
 173                   Specify additional directories searched for toolchain binaries
 174                   (override PATH). Use ./DIR for directories relative to the root above.
 175
 176         config TOOLCHAIN_INC_PATH
 177                 string
 178                 prompt "Toolchain include path"  if DEVEL
 179                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 180                 default "./usr/include ./include/fortify ./include" if EXTERNAL_TOOLCHAIN_LIBC_USE_MUSL
 181                 default "./usr/include ./include"
 182                 help
 183                   Specify additional directories searched for header files (override
 184                   CPPFLAGS). Use ./DIR for directories relative to the root above.
 185
 186         config TOOLCHAIN_LIB_PATH
 187                 string
 188                 prompt "Toolchain library path"  if DEVEL
 189                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 190                 default "./usr/lib ./lib"
 191                 help
 192                   Specify additional directories searched for libraries (override LDFLAGS).
 193                   Use ./DIR for directories relative to the root above.
 194
 195 config NEED_TOOLCHAIN
 196         bool
 197         depends on DEVEL
 198         default y if !EXTERNAL_TOOLCHAIN
 199
 200 menuconfig TOOLCHAINOPTS
 201         bool "Toolchain Options"  if DEVEL
 202         depends on NEED_TOOLCHAIN
 203
 204 menuconfig EXTRA_TARGET_ARCH
 205         bool
 206         prompt "Enable an extra toolchain target architecture" if TOOLCHAINOPTS
 207         depends on !sparc
 208         help
 209           Some builds may require a 'biarch' toolchain. This option
 210           allows you to specify an additional target arch.
 211
 212           Most people will answer N here.
 213
 214         config EXTRA_TARGET_ARCH_NAME
 215                 string
 216                 prompt "Extra architecture name" if EXTRA_TARGET_ARCH
 217                 help
 218                   Specify the cpu name (eg powerpc64 or x86_64) of the
 219                   additional target architecture.
 220
 221         config EXTRA_TARGET_ARCH_OPTS
 222                 string
 223                 prompt "Extra architecture compiler options" if EXTRA_TARGET_ARCH
 224                 help
 225                   If you're specifying an addition target architecture,
 226                   you'll probably need to also provide options to make
 227                   the compiler use this alternate arch.
 228
 229                   For example, if you're building a compiler that can build
 230                   both powerpc and powerpc64 binaries, you'll need to
 231                   specify -m64 here.
 232
 233
 234         choice
 235                 prompt "MIPS64 user-land ABI" if TOOLCHAINOPTS && (mips64 || mips64el)
 236                 default MIPS64_ABI_N64
 237                 help
 238                    MIPS64 supports 3 different user-land ABIs: o32 (legacy),
 239                    n32 and n64.
 240
 241                 config MIPS64_ABI_N64
 242                         bool "n64"
 243
 244                 config MIPS64_ABI_N32
 245                         depends on !LIBC_USE_MUSL
 246                         bool "n32"
 247
 248                 config MIPS64_ABI_O32
 249                         bool "o32"
 250
 251         endchoice
 252
 253 comment "Binary tools"
 254         depends on TOOLCHAINOPTS
 255
 256 source "toolchain/binutils/Config.in"
 257
 258 config DWARVES
 259         bool
 260         prompt "Build pahole" if TOOLCHAINOPTS
 261         depends on !HOST_OS_MACOS
 262         help
 263           Enable if you want to build pahole and the dwarves tools.
 264
 265 comment "Compiler"
 266         depends on TOOLCHAINOPTS
 267
 268 source "toolchain/gcc/Config.in"
 269
 270 config NASM
 271         bool
 272         depends on ( i386 || x86_64 )
 273         prompt "Build nasm" if TOOLCHAINOPTS
 274         default y
 275         help
 276           Enable if you want to build nasm
 277
 278 comment "C Library"
 279         depends on TOOLCHAINOPTS
 280
 281 choice
 282         prompt "C Library implementation" if TOOLCHAINOPTS
 283         default LIBC_USE_GLIBC if arc
 284         default LIBC_USE_MUSL
 285         help
 286           Select the C library implementation.
 287
 288         config LIBC_USE_GLIBC
 289                 bool "Use glibc"
 290                 select USE_GLIBC
 291
 292         config LIBC_USE_MUSL
 293                 select USE_MUSL
 294                 bool "Use musl"
 295                 depends on !arc
 296
 297 endchoice
 298
 299 source "toolchain/musl/Config.in"
 300
 301 comment "Debuggers"
 302         depends on TOOLCHAINOPTS
 303
 304 config GDB
 305         bool
 306         prompt "Build gdb" if TOOLCHAINOPTS
 307         default y if !EXTERNAL_TOOLCHAIN
 308         help
 309           Enable if you want to build the gdb.
 310
 311 config GDB_PYTHON
 312         bool
 313         depends on GDB
 314         prompt "Build gdb with python binding"
 315
 316         help
 317           Enable the python bindings for GDB to allow using python in the gdb shell.
 318
 319 config HAS_BPF_TOOLCHAIN
 320         bool
 321
 322 config HAS_PREBUILT_LLVM_TOOLCHAIN
 323         def_bool $(shell, [ -f llvm-bpf/.llvm-version ] && echo y || echo n)
 324
 325 config USE_LLVM_HOST
 326         select HAS_BPF_TOOLCHAIN
 327         bool
 328
 329 config USE_LLVM_PREBUILT
 330         select HAS_BPF_TOOLCHAIN
 331         default y if !DEVEL && !BUILDBOT && HAS_PREBUILT_LLVM_TOOLCHAIN
 332         bool
 333
 334 config USE_LLVM_BUILD
 335         default y if !DEVEL && BUILDBOT
 336         select HAS_BPF_TOOLCHAIN
 337         bool
 338
 339 config USE_GLIBC
 340         default y if !TOOLCHAINOPTS && !EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN && (arc)
 341         bool
 342
 343 config USE_MUSL
 344         default y if !TOOLCHAINOPTS && !EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN && !(arc)
 345         bool
 346
 347 config SSP_SUPPORT
 348         default y if !PKG_CC_STACKPROTECTOR_NONE
 349         bool
 350
 351 config USE_EXTERNAL_LIBC
 352         bool
 353         default y if EXTERNAL_TOOLCHAIN || NATIVE_TOOLCHAIN
 354
 355 source "toolchain/binutils/Config.version"
 356 source "toolchain/gcc/Config.version"
 357
 358 config LIBC
 359         string
 360         default "glibc"   if USE_GLIBC
 361         default "musl"    if USE_MUSL
 362
 363 config TARGET_SUFFIX
 364         string
 365         default "gnueabi"         if USE_GLIBC && (arm || armeb)
 366         default "gnu"             if USE_GLIBC && !(arm || armeb)
 367         default "muslgnueabi"     if USE_MUSL && (arm || armeb)
 368         default "musl"            if USE_MUSL && !(arm || armeb)
 369
 370 config MIPS64_ABI
 371         depends on mips64 || mips64el
 372         string
 373         default "64" if MIPS64_ABI_N64
 374         default "n32" if MIPS64_ABI_N32
 375         default "32" if MIPS64_ABI_O32
 376         default "64"