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_NONE
  45
  46                 config BPF_TOOLCHAIN_NONE
  47                         bool "None"
  48
  49                 config BPF_TOOLCHAIN_HOST
  50                         select USE_LLVM_HOST
  51                         bool "Use host LLVM toolchain"
  52
  53                 config BPF_TOOLCHAIN_BUILD_LLVM
  54                         select USE_LLVM_BUILD
  55                         bool "Build LLVM toolchain for eBPF"
  56                         help
  57                           If enabled, a LLVM toolchain for building eBPF binaries will be built.
  58                           If this is not enabled, eBPF packages can only be built if the host
  59                           has a suitable toolchain
  60         endchoice
  61
  62         config BPF_TOOLCHAIN_HOST_PATH
  63                 string
  64                 depends on BPF_TOOLCHAIN_HOST
  65                 prompt "Host LLVM toolchain path (prefix)" if DEVEL
  66                 default "/usr/local/opt/llvm" if HOST_OS_MACOS
  67                 default ""
  68
  69 menuconfig EXTERNAL_TOOLCHAIN
  70         bool
  71         prompt "Use external toolchain"  if DEVEL
  72         help
  73           If enabled, the buildroot will compile using an existing toolchain instead of
  74           compiling one.
  75
  76         config NATIVE_TOOLCHAIN
  77                 bool
  78                 prompt "Use host's toolchain"  if DEVEL
  79                 depends on EXTERNAL_TOOLCHAIN
  80                 select NO_STRIP
  81                 help
  82                   If enabled, the buildroot will compile using the native toolchain for your
  83                   host instead of compiling one.
  84
  85         config TARGET_NAME
  86                 string
  87                 prompt "Target name"  if DEVEL
  88                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
  89                 default "aarch64-unknown-linux-gnu"  if aarch64
  90                 default "aarch64_be-unknown-linux-gnu"  if aarch64_be
  91                 default "arm-unknown-linux-gnu"      if arm
  92                 default "armeb-unknown-linux-gnu"    if armeb
  93                 default "i486-unknown-linux-gnu"     if i386
  94                 default "mips-unknown-linux-gnu"     if mips
  95                 default "mipsel-unknown-linux-gnu"   if mipsel
  96                 default "powerpc-unknown-linux-gnu"  if powerpc
  97                 default "x86_64-unknown-linux-gnu"   if x86_64
  98
  99         config TOOLCHAIN_PREFIX
 100                 string
 101                 prompt "Toolchain prefix"  if DEVEL
 102                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 103                 default "aarch64-unknown-linux-gnu"  if aarch64
 104                 default "aarch64_be-unknown-linux-gnu"  if aarch64_be
 105                 default "arm-unknown-linux-gnu-"      if arm
 106                 default "armeb-unknown-linux-gnu-"    if armeb
 107                 default "i486-unknown-linux-gnu-"     if i386
 108                 default "mips-unknown-linux-gnu-"     if mips
 109                 default "mipsel-unknown-linux-gnu-"   if mipsel
 110                 default "powerpc-unknown-linux-gnu-"  if powerpc
 111                 default "x86_64-unknown-linux-gnu-"   if x86_64
 112
 113         config TOOLCHAIN_ROOT
 114                 string
 115                 prompt "Toolchain root"  if DEVEL
 116                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 117                 default "/opt/cross/aarch64-unknown-linux-gnu"  if aarch64
 118                 default "/opt/cross/aarch64_be-unknown-linux-gnu"  if aarch64_be
 119                 default "/opt/cross/arm-unknown-linux-gnu"      if arm
 120                 default "/opt/cross/armeb-unknown-linux-gnu"    if armeb
 121                 default "/opt/cross/i486-unknown-linux-gnu"     if i386
 122                 default "/opt/cross/mips-unknown-linux-gnu"     if mips
 123                 default "/opt/cross/mipsel-unknown-linux-gnu"   if mipsel
 124                 default "/opt/cross/powerpc-unknown-linux-gnu"  if powerpc
 125                 default "/opt/cross/x86_64-unknown-linux-gnu"   if x86_64
 126
 127         choice TOOLCHAIN_LIBC_TYPE
 128                 prompt "Toolchain libc"  if DEVEL
 129                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 130                 default EXTERNAL_TOOLCHAIN_LIBC_USE_MUSL
 131                 help
 132                   Specify the libc type used by the external toolchain. The given value
 133                   is passed as -m flag to all gcc and g++ invocations. This is mainly
 134                   intended for multilib toolchains which support glibc and uclibc at
 135                   the same time. If no value is specified, no -m flag is passed.
 136
 137                 config EXTERNAL_TOOLCHAIN_LIBC_USE_GLIBC
 138                         bool "glibc"
 139                         select USE_GLIBC
 140
 141                 config EXTERNAL_TOOLCHAIN_LIBC_USE_MUSL
 142                         bool "musl"
 143                         select USE_MUSL
 144
 145         endchoice
 146
 147         config TOOLCHAIN_LIBC
 148                 string
 149                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 150                 default "glibc" if EXTERNAL_TOOLCHAIN_LIBC_USE_GLIBC
 151                 default "musl" if EXTERNAL_TOOLCHAIN_LIBC_USE_MUSL
 152
 153         config TOOLCHAIN_BIN_PATH
 154                 string
 155                 prompt "Toolchain program path"  if DEVEL
 156                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 157                 default "./usr/bin ./bin"
 158                 help
 159                   Specify additional directories searched for toolchain binaries
 160                   (override PATH). Use ./DIR for directories relative to the root above.
 161
 162         config TOOLCHAIN_INC_PATH
 163                 string
 164                 prompt "Toolchain include path"  if DEVEL
 165                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 166                 default "./usr/include ./include"
 167                 help
 168                   Specify additional directories searched for header files (override
 169                   CPPFLAGS). Use ./DIR for directories relative to the root above.
 170
 171         config TOOLCHAIN_LIB_PATH
 172                 string
 173                 prompt "Toolchain library path"  if DEVEL
 174                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 175                 default "./usr/lib ./lib"
 176                 help
 177                   Specify additional directories searched for libraries (override LDFLAGS).
 178                   Use ./DIR for directories relative to the root above.
 179
 180 config NEED_TOOLCHAIN
 181         bool
 182         depends on DEVEL
 183         default y if !EXTERNAL_TOOLCHAIN
 184
 185 menuconfig TOOLCHAINOPTS
 186         bool "Toolchain Options"  if DEVEL
 187         depends on NEED_TOOLCHAIN
 188
 189 menuconfig EXTRA_TARGET_ARCH
 190         bool
 191         prompt "Enable an extra toolchain target architecture" if TOOLCHAINOPTS
 192         depends on !sparc
 193         default n
 194         help
 195           Some builds may require a 'biarch' toolchain. This option
 196           allows you to specify an additional target arch.
 197
 198           Most people will answer N here.
 199
 200         config EXTRA_TARGET_ARCH_NAME
 201                 string
 202                 prompt "Extra architecture name" if EXTRA_TARGET_ARCH
 203                 help
 204                   Specify the cpu name (eg powerpc64 or x86_64) of the
 205                   additional target architecture.
 206
 207         config EXTRA_TARGET_ARCH_OPTS
 208                 string
 209                 prompt "Extra architecture compiler options" if EXTRA_TARGET_ARCH
 210                 help
 211                   If you're specifying an addition target architecture,
 212                   you'll probably need to also provide options to make
 213                   the compiler use this alternate arch.
 214
 215                   For example, if you're building a compiler that can build
 216                   both powerpc and powerpc64 binaries, you'll need to
 217                   specify -m64 here.
 218
 219
 220         choice
 221                 prompt "MIPS64 user-land ABI" if TOOLCHAINOPTS && (mips64 || mips64el)
 222                 default MIPS64_ABI_N64
 223                 help
 224                    MIPS64 supports 3 different user-land ABIs: o32 (legacy),
 225                    n32 and n64.
 226
 227                 config MIPS64_ABI_N64
 228                         bool "n64"
 229
 230                 config MIPS64_ABI_N32
 231                         depends on !LIBC_USE_MUSL
 232                         bool "n32"
 233
 234                 config MIPS64_ABI_O32
 235                         bool "o32"
 236
 237         endchoice
 238
 239 comment "Binary tools"
 240         depends on TOOLCHAINOPTS
 241
 242 source "toolchain/binutils/Config.in"
 243
 244 comment "Compiler"
 245         depends on TOOLCHAINOPTS
 246
 247 source "toolchain/gcc/Config.in"
 248
 249 config NASM
 250         bool
 251         depends on ( i386 || x86_64 )
 252         prompt "Build nasm" if TOOLCHAINOPTS
 253         default y
 254         help
 255           Enable if you want to build nasm
 256
 257 comment "C Library"
 258         depends on TOOLCHAINOPTS
 259
 260 choice
 261         prompt "C Library implementation" if TOOLCHAINOPTS
 262         default LIBC_USE_GLIBC if arc
 263         default LIBC_USE_MUSL
 264         help
 265           Select the C library implementation.
 266
 267         config LIBC_USE_GLIBC
 268                 bool "Use glibc"
 269                 select USE_GLIBC
 270
 271         config LIBC_USE_MUSL
 272                 select USE_MUSL
 273                 bool "Use musl"
 274                 depends on !arc
 275
 276 endchoice
 277
 278 source "toolchain/musl/Config.in"
 279
 280 comment "Debuggers"
 281         depends on TOOLCHAINOPTS
 282
 283 config GDB
 284         bool
 285         prompt "Build gdb" if TOOLCHAINOPTS
 286         default y if !EXTERNAL_TOOLCHAIN
 287         help
 288           Enable if you want to build the gdb.
 289
 290 config GDB_PYTHON
 291         bool
 292         depends on GDB
 293         prompt "Build gdb with python binding"
 294
 295         help
 296           Enable the python bindings for GDB to allow using python in the gdb shell.
 297
 298 config HAS_BPF_TOOLCHAIN
 299         bool
 300
 301 config USE_LLVM_HOST
 302         select HAS_BPF_TOOLCHAIN
 303         bool
 304
 305 config USE_LLVM_BUILD
 306         default y if !DEVEL && BUILDBOT
 307         select HAS_BPF_TOOLCHAIN
 308         bool
 309
 310 config USE_GLIBC
 311         default y if !TOOLCHAINOPTS && !EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN && (arc)
 312         bool
 313
 314 config USE_MUSL
 315         default y if !TOOLCHAINOPTS && !EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN && !(arc)
 316         bool
 317
 318 config SSP_SUPPORT
 319         default y if !PKG_CC_STACKPROTECTOR_NONE
 320         bool
 321
 322 config USE_EXTERNAL_LIBC
 323         bool
 324         default y if EXTERNAL_TOOLCHAIN || NATIVE_TOOLCHAIN
 325
 326 source "toolchain/binutils/Config.version"
 327 source "toolchain/gcc/Config.version"
 328
 329 config LIBC
 330         string
 331         default "glibc"   if USE_GLIBC
 332         default "musl"    if USE_MUSL
 333
 334 config TARGET_SUFFIX
 335         string
 336         default "gnueabi"         if USE_GLIBC && (arm || armeb)
 337         default "gnu"             if USE_GLIBC && !(arm || armeb)
 338         default "muslgnueabi"     if USE_MUSL && (arm || armeb)
 339         default "musl"            if USE_MUSL && !(arm || armeb)
 340
 341 config MIPS64_ABI
 342         depends on mips64 || mips64el
 343         string
 344         default "64" if MIPS64_ABI_N64
 345         default "n32" if MIPS64_ABI_N32
 346         default "32" if MIPS64_ABI_O32
 347         default "64"