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_NONE
  44
  45                 config BPF_TOOLCHAIN_NONE
  46                         bool "None"
  47
  48                 config BPF_TOOLCHAIN_HOST
  49                         select USE_LLVM_HOST
  50                         bool "Use host LLVM toolchain"
  51
  52                 config BPF_TOOLCHAIN_BUILD_LLVM
  53                         select USE_LLVM_BUILD
  54                         bool "Build LLVM toolchain for eBPF"
  55                         help
  56                           If enabled, a LLVM toolchain for building eBPF binaries will be built.
  57                           If this is not enabled, eBPF packages can only be built if the host
  58                           has a suitable toolchain
  59         endchoice
  60
  61         config BPF_TOOLCHAIN_HOST_PATH
  62                 string
  63                 depends on BPF_TOOLCHAIN_HOST
  64                 prompt "Host LLVM toolchain path (prefix)" if DEVEL
  65                 default "/usr/local/opt/llvm" if HOST_OS_MACOS
  66                 default ""
  67
  68 menuconfig EXTERNAL_TOOLCHAIN
  69         bool
  70         prompt "Use external toolchain"  if DEVEL
  71         help
  72           If enabled, the buildroot will compile using an existing toolchain instead of
  73           compiling one.
  74
  75         config NATIVE_TOOLCHAIN
  76                 bool
  77                 prompt "Use host's toolchain"  if DEVEL
  78                 depends on EXTERNAL_TOOLCHAIN
  79                 select NO_STRIP
  80                 help
  81                   If enabled, the buildroot will compile using the native toolchain for your
  82                   host instead of compiling one.
  83
  84         config TARGET_NAME
  85                 string
  86                 prompt "Target name"  if DEVEL
  87                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
  88                 default "aarch64-unknown-linux-gnu"  if aarch64
  89                 default "aarch64_be-unknown-linux-gnu"  if aarch64_be
  90                 default "arm-unknown-linux-gnu"      if arm
  91                 default "armeb-unknown-linux-gnu"    if armeb
  92                 default "i486-unknown-linux-gnu"     if i386
  93                 default "mips-unknown-linux-gnu"     if mips
  94                 default "mipsel-unknown-linux-gnu"   if mipsel
  95                 default "powerpc-unknown-linux-gnu"  if powerpc
  96                 default "x86_64-unknown-linux-gnu"   if x86_64
  97
  98         config TOOLCHAIN_PREFIX
  99                 string
 100                 prompt "Toolchain prefix"  if DEVEL
 101                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 102                 default "aarch64-unknown-linux-gnu"  if aarch64
 103                 default "aarch64_be-unknown-linux-gnu"  if aarch64_be
 104                 default "arm-unknown-linux-gnu-"      if arm
 105                 default "armeb-unknown-linux-gnu-"    if armeb
 106                 default "i486-unknown-linux-gnu-"     if i386
 107                 default "mips-unknown-linux-gnu-"     if mips
 108                 default "mipsel-unknown-linux-gnu-"   if mipsel
 109                 default "powerpc-unknown-linux-gnu-"  if powerpc
 110                 default "x86_64-unknown-linux-gnu-"   if x86_64
 111
 112         config TOOLCHAIN_ROOT
 113                 string
 114                 prompt "Toolchain root"  if DEVEL
 115                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 116                 default "/opt/cross/aarch64-unknown-linux-gnu"  if aarch64
 117                 default "/opt/cross/aarch64_be-unknown-linux-gnu"  if aarch64_be
 118                 default "/opt/cross/arm-unknown-linux-gnu"      if arm
 119                 default "/opt/cross/armeb-unknown-linux-gnu"    if armeb
 120                 default "/opt/cross/i486-unknown-linux-gnu"     if i386
 121                 default "/opt/cross/mips-unknown-linux-gnu"     if mips
 122                 default "/opt/cross/mipsel-unknown-linux-gnu"   if mipsel
 123                 default "/opt/cross/powerpc-unknown-linux-gnu"  if powerpc
 124                 default "/opt/cross/x86_64-unknown-linux-gnu"   if x86_64
 125
 126         choice TOOLCHAIN_LIBC_TYPE
 127                 prompt "Toolchain libc"  if DEVEL
 128                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 129                 default EXTERNAL_TOOLCHAIN_LIBC_USE_MUSL
 130                 help
 131                   Specify the libc type used by the external toolchain. The given value
 132                   is passed as -m flag to all gcc and g++ invocations. This is mainly
 133                   intended for multilib toolchains which support glibc and uclibc at
 134                   the same time. If no value is specified, no -m flag is passed.
 135
 136                 config EXTERNAL_TOOLCHAIN_LIBC_USE_GLIBC
 137                         bool "glibc"
 138                         select USE_GLIBC
 139
 140                 config EXTERNAL_TOOLCHAIN_LIBC_USE_MUSL
 141                         bool "musl"
 142                         select USE_MUSL
 143
 144         endchoice
 145
 146         config TOOLCHAIN_LIBC
 147                 string
 148                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 149                 default "glibc" if EXTERNAL_TOOLCHAIN_LIBC_USE_GLIBC
 150                 default "musl" if EXTERNAL_TOOLCHAIN_LIBC_USE_MUSL
 151
 152         config TOOLCHAIN_BIN_PATH
 153                 string
 154                 prompt "Toolchain program path"  if DEVEL
 155                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 156                 default "./usr/bin ./bin"
 157                 help
 158                   Specify additional directories searched for toolchain binaries
 159                   (override PATH). Use ./DIR for directories relative to the root above.
 160
 161         config TOOLCHAIN_INC_PATH
 162                 string
 163                 prompt "Toolchain include path"  if DEVEL
 164                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 165                 default "./usr/include ./include"
 166                 help
 167                   Specify additional directories searched for header files (override
 168                   CPPFLAGS). Use ./DIR for directories relative to the root above.
 169
 170         config TOOLCHAIN_LIB_PATH
 171                 string
 172                 prompt "Toolchain library path"  if DEVEL
 173                 depends on EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN
 174                 default "./usr/lib ./lib"
 175                 help
 176                   Specify additional directories searched for libraries (override LDFLAGS).
 177                   Use ./DIR for directories relative to the root above.
 178
 179 config NEED_TOOLCHAIN
 180         bool
 181         depends on DEVEL
 182         default y if !EXTERNAL_TOOLCHAIN
 183
 184 menuconfig TOOLCHAINOPTS
 185         bool "Toolchain Options"  if DEVEL
 186         depends on NEED_TOOLCHAIN
 187
 188 menuconfig EXTRA_TARGET_ARCH
 189         bool
 190         prompt "Enable an extra toolchain target architecture" if TOOLCHAINOPTS
 191         depends on !sparc
 192         default n
 193         help
 194           Some builds may require a 'biarch' toolchain. This option
 195           allows you to specify an additional target arch.
 196
 197           Most people will answer N here.
 198
 199         config EXTRA_TARGET_ARCH_NAME
 200                 string
 201                 prompt "Extra architecture name" if EXTRA_TARGET_ARCH
 202                 help
 203                   Specify the cpu name (eg powerpc64 or x86_64) of the
 204                   additional target architecture.
 205
 206         config EXTRA_TARGET_ARCH_OPTS
 207                 string
 208                 prompt "Extra architecture compiler options" if EXTRA_TARGET_ARCH
 209                 help
 210                   If you're specifying an addition target architecture,
 211                   you'll probably need to also provide options to make
 212                   the compiler use this alternate arch.
 213
 214                   For example, if you're building a compiler that can build
 215                   both powerpc and powerpc64 binaries, you'll need to
 216                   specify -m64 here.
 217
 218
 219         choice
 220                 prompt "MIPS64 user-land ABI" if TOOLCHAINOPTS && (mips64 || mips64el)
 221                 default MIPS64_ABI_N64
 222                 help
 223                    MIPS64 supports 3 different user-land ABIs: o32 (legacy),
 224                    n32 and n64.
 225
 226                 config MIPS64_ABI_N64
 227                         bool "n64"
 228
 229                 config MIPS64_ABI_N32
 230                         depends on !LIBC_USE_MUSL
 231                         bool "n32"
 232
 233                 config MIPS64_ABI_O32
 234                         bool "o32"
 235
 236         endchoice
 237
 238 comment "Binary tools"
 239         depends on TOOLCHAINOPTS
 240
 241 source "toolchain/binutils/Config.in"
 242
 243 comment "Compiler"
 244         depends on TOOLCHAINOPTS
 245
 246 source "toolchain/gcc/Config.in"
 247
 248 config NASM
 249         bool
 250         depends on ( i386 || x86_64 )
 251         prompt "Build nasm" if TOOLCHAINOPTS
 252         default y
 253         help
 254           Enable if you want to build nasm
 255
 256 comment "C Library"
 257         depends on TOOLCHAINOPTS
 258
 259 choice
 260         prompt "C Library implementation" if TOOLCHAINOPTS
 261         default LIBC_USE_GLIBC if arc
 262         default LIBC_USE_MUSL
 263         help
 264           Select the C library implementation.
 265
 266         config LIBC_USE_GLIBC
 267                 bool "Use glibc"
 268                 select USE_GLIBC
 269
 270         config LIBC_USE_MUSL
 271                 select USE_MUSL
 272                 bool "Use musl"
 273                 depends on !arc
 274
 275 endchoice
 276
 277 source "toolchain/musl/Config.in"
 278
 279 comment "Debuggers"
 280         depends on TOOLCHAINOPTS
 281
 282 config GDB
 283         bool
 284         prompt "Build gdb" if TOOLCHAINOPTS
 285         default y if !EXTERNAL_TOOLCHAIN
 286         help
 287           Enable if you want to build the gdb.
 288
 289 config GDB_PYTHON
 290         bool
 291         depends on GDB
 292         prompt "Build gdb with python binding"
 293
 294         help
 295           Enable the python bindings for GDB to allow using python in the gdb shell.
 296
 297 config HAS_BPF_TOOLCHAIN
 298         bool
 299
 300 config USE_LLVM_HOST
 301         select HAS_BPF_TOOLCHAIN
 302         bool
 303
 304 config USE_LLVM_BUILD
 305         select HAS_BPF_TOOLCHAIN
 306         bool
 307
 308 config USE_GLIBC
 309         default y if !TOOLCHAINOPTS && !EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN && (arc)
 310         bool
 311
 312 config USE_MUSL
 313         default y if !TOOLCHAINOPTS && !EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN && !(arc)
 314         bool
 315
 316 config SSP_SUPPORT
 317         default y if !PKG_CC_STACKPROTECTOR_NONE
 318         bool
 319
 320 config USE_EXTERNAL_LIBC
 321         bool
 322         default y if EXTERNAL_TOOLCHAIN || NATIVE_TOOLCHAIN
 323
 324 source "toolchain/binutils/Config.version"
 325 source "toolchain/gcc/Config.version"
 326
 327 config LIBC
 328         string
 329         default "glibc"   if USE_GLIBC
 330         default "musl"    if USE_MUSL
 331
 332 config TARGET_SUFFIX
 333         string
 334         default "gnueabi"         if USE_GLIBC && (arm || armeb)
 335         default "gnu"             if USE_GLIBC && !(arm || armeb)
 336         default "muslgnueabi"     if USE_MUSL && (arm || armeb)
 337         default "musl"            if USE_MUSL && !(arm || armeb)
 338
 339 config MIPS64_ABI
 340         depends on mips64 || mips64el
 341         string
 342         default "64" if MIPS64_ABI_N64
 343         default "n32" if MIPS64_ABI_N32
 344         default "32" if MIPS64_ABI_O32
 345         default "64"