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         help
 201           Some builds may require a 'biarch' toolchain. This option
 202           allows you to specify an additional target arch.
 203
 204           Most people will answer N here.
 205
 206         config EXTRA_TARGET_ARCH_NAME
 207                 string
 208                 prompt "Extra architecture name" if EXTRA_TARGET_ARCH
 209                 help
 210                   Specify the cpu name (eg powerpc64 or x86_64) of the
 211                   additional target architecture.
 212
 213         config EXTRA_TARGET_ARCH_OPTS
 214                 string
 215                 prompt "Extra architecture compiler options" if EXTRA_TARGET_ARCH
 216                 help
 217                   If you're specifying an addition target architecture,
 218                   you'll probably need to also provide options to make
 219                   the compiler use this alternate arch.
 220
 221                   For example, if you're building a compiler that can build
 222                   both powerpc and powerpc64 binaries, you'll need to
 223                   specify -m64 here.
 224
 225
 226         choice
 227                 prompt "MIPS64 user-land ABI" if TOOLCHAINOPTS && (mips64 || mips64el)
 228                 default MIPS64_ABI_N64
 229                 help
 230                    MIPS64 supports 3 different user-land ABIs: o32 (legacy),
 231                    n32 and n64.
 232
 233                 config MIPS64_ABI_N64
 234                         bool "n64"
 235
 236                 config MIPS64_ABI_N32
 237                         depends on !LIBC_USE_MUSL
 238                         bool "n32"
 239
 240                 config MIPS64_ABI_O32
 241                         bool "o32"
 242
 243         endchoice
 244
 245 comment "Binary tools"
 246         depends on TOOLCHAINOPTS
 247
 248 source "toolchain/binutils/Config.in"
 249
 250 config DWARVES
 251         bool
 252         prompt "Build pahole" if TOOLCHAINOPTS
 253         depends on !HOST_OS_MACOS
 254         help
 255           Enable if you want to build pahole and the dwarves tools.
 256
 257 comment "Compiler"
 258         depends on TOOLCHAINOPTS
 259
 260 source "toolchain/gcc/Config.in"
 261
 262 config NASM
 263         bool
 264         depends on ( i386 || x86_64 )
 265         prompt "Build nasm" if TOOLCHAINOPTS
 266         default y
 267         help
 268           Enable if you want to build nasm
 269
 270 comment "C Library"
 271         depends on TOOLCHAINOPTS
 272
 273 choice
 274         prompt "C Library implementation" if TOOLCHAINOPTS
 275         default LIBC_USE_GLIBC if arc
 276         default LIBC_USE_MUSL
 277         help
 278           Select the C library implementation.
 279
 280         config LIBC_USE_GLIBC
 281                 bool "Use glibc"
 282                 select USE_GLIBC
 283
 284         config LIBC_USE_MUSL
 285                 select USE_MUSL
 286                 bool "Use musl"
 287                 depends on !arc
 288
 289 endchoice
 290
 291 source "toolchain/musl/Config.in"
 292
 293 comment "Debuggers"
 294         depends on TOOLCHAINOPTS
 295
 296 config GDB
 297         bool
 298         prompt "Build gdb" if TOOLCHAINOPTS
 299         default y if !EXTERNAL_TOOLCHAIN
 300         help
 301           Enable if you want to build the gdb.
 302
 303 config GDB_PYTHON
 304         bool
 305         depends on GDB
 306         prompt "Build gdb with python binding"
 307
 308         help
 309           Enable the python bindings for GDB to allow using python in the gdb shell.
 310
 311 config HAS_BPF_TOOLCHAIN
 312         bool
 313
 314 config HAS_PREBUILT_LLVM_TOOLCHAIN
 315         def_bool $(shell, [ -f llvm-bpf/.llvm-version ] && echo y || echo n)
 316
 317 config USE_LLVM_HOST
 318         select HAS_BPF_TOOLCHAIN
 319         bool
 320
 321 config USE_LLVM_PREBUILT
 322         select HAS_BPF_TOOLCHAIN
 323         default y if !DEVEL && !BUILDBOT && HAS_PREBUILT_LLVM_TOOLCHAIN
 324         bool
 325
 326 config USE_LLVM_BUILD
 327         default y if !DEVEL && BUILDBOT
 328         select HAS_BPF_TOOLCHAIN
 329         bool
 330
 331 config USE_GLIBC
 332         default y if !TOOLCHAINOPTS && !EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN && (arc)
 333         bool
 334
 335 config USE_MUSL
 336         default y if !TOOLCHAINOPTS && !EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN && !(arc)
 337         bool
 338
 339 config SSP_SUPPORT
 340         default y if !PKG_CC_STACKPROTECTOR_NONE
 341         bool
 342
 343 config USE_EXTERNAL_LIBC
 344         bool
 345         default y if EXTERNAL_TOOLCHAIN || NATIVE_TOOLCHAIN
 346
 347 source "toolchain/binutils/Config.version"
 348 source "toolchain/gcc/Config.version"
 349
 350 config LIBC
 351         string
 352         default "glibc"   if USE_GLIBC
 353         default "musl"    if USE_MUSL
 354
 355 config TARGET_SUFFIX
 356         string
 357         default "gnueabi"         if USE_GLIBC && (arm || armeb)
 358         default "gnu"             if USE_GLIBC && !(arm || armeb)
 359         default "muslgnueabi"     if USE_MUSL && (arm || armeb)
 360         default "musl"            if USE_MUSL && !(arm || armeb)
 361
 362 config MIPS64_ABI
 363         depends on mips64 || mips64el
 364         string
 365         default "64" if MIPS64_ABI_N64
 366         default "n32" if MIPS64_ABI_N32
 367         default "32" if MIPS64_ABI_O32
 368         default "64"